TW201809405A - Longitudinal connection structure for steel members - Google Patents

Abstract

This vertical joint structure of a steel member comprises: a steel member-side projection that projects from an end face of one steel member and an end face of another steel member, the steel members being connected in the material axis direction, wherein the steel member-side projection has a steel member-side inclined face inclined with respect to the projection direction formed on at least one of the side of the boundary between both steel members and the side away from the boundary; a connection member that has a flat plate disposed to straddle the boundary and a connection-side projection that projects toward the end face of each of the steel members from the flat plate and on which a connection-side inclined face opposite to the steel member-side inclined face of the steel member-side projection is formed on the connection side-projection; and a fixing member that presses the connection-side inclined face against the opposing steel member-side inclined face in a state in which a gap is formed between the flat plate and the steel member-side projection.

Description

Vertical connection structure of steel members

FIELD OF THE INVENTION The present disclosure relates to a longitudinal connection structure of a steel member. The longitudinal connection structure of the steel member is connected to the steel member in the direction of the shaft.

Background Art When a plurality of steel sheet piles are connected longitudinally, the steel sheet piles are usually welded at the construction site to connect them vertically. At this time, as the cross-sectional area of the steel sheet pile increases, the welding amount also increases, which prolongs the welding time. Especially when there are many vertical connection parts, the construction period tends to be long.

Here, while ensuring rigidity and durability, cheap and easy construction is required, and the construction period and cost are shortened. For example, there is a proposal of Japanese Patent Application Publication No. 2011-38288 (hereinafter referred to as Patent Document 1). Revealed connection structure of steel sheet piles.

The connection structure of the steel sheet piles disclosed in Patent Document 1 is a steel sheet pile having a curved cross section in the vertical direction. A lower connection member is provided at an upper end portion of the lower steel sheet pile, and the lower connection member protrudes from the surfaces of the web and the wing plate of the steel sheet pile. An upper connection member is provided at the lower end of the upper steel sheet pile, and the upper connection member protrudes from the surfaces of the web and the wing. Then, in a state where the upper end edge of the lower steel sheet pile is in contact with the lower end edge of the upper steel sheet pile, the lower connection member and the upper connection member are fixed by a fixing mechanism.

SUMMARY OF THE INVENTION Problems to be Solved by the Invention However, in the connection structure of the steel sheet pile disclosed in Patent Document 1, the bending rigidity of the longitudinal connection portion is low, and the longitudinal connection portion is likely to be a structural weakness.

Here, the present disclosure has been conceived in view of the above-mentioned problems, and an object thereof is to provide a longitudinal connection structure of a steel member, which can change the operation of connecting the steel member in the direction of the material axis. It is easy to ensure full initial rigidity and endurance.

The means for solving the problem The longitudinal connection structure of the steel member that solves the above-mentioned problems includes: a steel member-side protrusion, which protrudes from the side surface of the end portion, wherein the side surface of the end portion is connected in the direction of the material axis. The steel member-side protruding portion is formed with a steel member-side inclined surface which is inclined with respect to a protruding direction, and the steel member-side inclined surface It is formed on at least one of the boundary side of the two steel members and the side away from the boundary; a connecting member having a flat plate portion arranged across the boundary; and a connecting side protruding portion toward each of the flat plate portions. The side surface of the end of the steel member is protruded, and the connection-side protrusion is formed with a connection-side slope, the connection-side slope is opposite to the steel member-side slope of the steel-member-side protrusion; and, the fixing member is connected to In a state where a gap is formed between the flat plate portion and the steel member-side protruding portion, the connecting-side inclined surface is pushed against the steel-member-side inclined surface that is opposed to the connecting-side inclined surface.

Effects of the Invention According to the longitudinal connection structure of the steel members disclosed in this disclosure, the steel members can be connected to each other in the direction of the material axis, which can ensure full initial rigidity and endurance.

Form for Implementing the Invention Hereinafter, the form for implementing the longitudinal connection structure 1 of a steel member to which the present disclosure is applied will be described in detail with reference to the drawings.

As shown in FIG. 1, the longitudinal connection structure 1 of the steel member is, for example, used at a construction site where narrow steel sheet piles 2 cannot be constructed, and is used to connect short steel sheet piles to each other in the material axis direction Y. 2. The short steel sheet pile 2 is buried below and above the inside of the site 8 as a plurality of steel members.

The longitudinal connection structure 1 of the steel member is a steel member 70 in which a plurality of steel sheet piles 2 and the like are connected to each other in the material axis direction Y to form a strip-shaped connecting steel member 70. In addition, in the longitudinal connection structure 1 of the steel members, a plurality of steel members connected in the material axis direction Y are taken as one connected steel member 70, and a plurality of connected steel members 70 are continuously provided in the wall width direction Z to construct steel.制 壁 7。 Wall 7.

As shown in FIG. 2, the longitudinal connection structure 1 of the steel members is mainly a steel sheet pile 2 such as a hat-shaped steel sheet pile 21 for each steel member. In addition, the longitudinal connection structure 1 of the steel member is a plurality of steel sheet piles 2 each having an end portion 30 in the material axis direction Y opposite to the material axis direction Y to form a longitudinal connection portion 3, and the longitudinal connection portion 3 refers to each A portion where the end portions 30 in the material axis direction Y of one steel sheet pile 2 are connected to each other. The longitudinal connection portion 3 is formed as a boundary between the steel sheet pile 2 on one side and the steel sheet pile 2 on the other side.

The longitudinal connection structure 1 of the steel member includes: a connection member 5 that is erected at the longitudinal connection portion 3 of the material axis direction Y of a plurality of steel sheet piles 2; a fixing member 4 that uses a shaft member 41 that is installed on the connection member 5 Etc .; and the steel member-side protruding portion 60 is provided at the end portion 30 of each steel sheet pile 2.

As shown in FIG. 3, the steel sheet pile 2 includes a wing plate portion 2a, a pair of web portions 2b, a pair of arm portions 2c, and a pair of joint portions 2d when a hat-shaped steel sheet pile 21 is used. The steel sheet piles 2 arranged in the wall width direction Z are connected by fitting the joint portions 2d to each other.

The steel sheet pile 2 extends in the wall width direction Z to form a wing plate portion 2a, and forms a respective web portion 2b at an angle from each of both ends of the wing plate portion 2a in the wall width direction Z, thereby forming a groove portion S. The steel sheet pile 2 forms each arm portion 2c from one end of each web portion 2b, and forms each joint portion 2d at the front end of each arm portion 2c.

The steel sheet pile 2 forms each side surface of the wing plate portion 2a, the web portion 2b, and the arm portion 2c into a substantially flat shape, thereby forming a substantially flat end side surface at the end portion 30 of the material axis direction Y that is connected to each other. 31.

As the steel sheet pile 2, not only the hat-shaped steel sheet pile 21 is used, but as shown in the modified examples of FIGS. 4 and 5, for example, a U-shaped steel sheet pile 22 or a Z-shaped steel sheet pile 23 may be used.

As shown in FIG. 4, in the steel sheet pile 2, when a U-shaped steel sheet pile 22 is used, the steel sheet pile 2 includes a wing plate portion 2 a, a pair of web portions 2 b, and a pair of joint portions 2 d, and the wing plate portion 2 a and the web portion 2 b are formed. The end portion 30 in the material axis direction Y is an end portion side surface 31 formed in a substantially flat shape.

As shown in FIG. 5, the steel sheet pile 2 includes a web portion 2b, a pair of arm portions 2c, and a pair of joint portions 2d when the Z-shaped steel sheet pile 23 is used. The end portion 30 of the side surface in the material axis direction Y is an end portion side surface 31 formed in a substantially flat shape.

As shown in FIG. 3, in the steel sheet pile 2, the connecting member 5 may be installed not only on the side surface 31 of the end portion of the wing plate portion 2 a but also on the side surface 31 of the end portion of the web portion 2 b or the arm portion 2 c. As shown in FIG. 6, the steel sheet pile 2 using the cap-shaped steel sheet pile 21 is particularly provided with a connecting member 5 on the side surface 31 of the end portion of the wing plate portion 2 a and the pair of arm portions 2 c.

As shown in FIGS. 7 and 8, the connecting member 5 includes a flat plate portion 51 using a steel plate or the like, and a connecting-side protruding portion 50 protruding from the flat plate portion 51 in the direction orthogonal to the material axis X. The connection member 5 is formed with a plurality of connection-side protrusions 50 extending continuously in the wall width direction Z. The flat plate portion 51 and each of the connecting-side protrusions 50 are integrally formed by hot rolling, hot rolling, or cold rolling.

The connecting member 5 is not limited to this, and the flat plate portion 51 and the connecting-side protruding portion 50 may be integrally formed by machining such as cutting a thick plate steel plate by machining. In addition, the connecting member 5 uses flat steel or the like as the connecting-side protruding portion 50, and welds the flat steel to the side of a steel plate used as the flat plate portion 51, so that the flat plate portion 51 and the connecting-side protruding portion 50 can also be welded. Integrated.

The flat plate portion 51 is formed into a substantially rectangular shape, and the width dimension B is approximately 50 mm to 400 mm, and the height dimension H is approximately 200 mm to 400 mm. As shown in FIG. 9, the flat plate portion 51 has a plate thickness t of approximately 9 mm to 25 mm, from the end portion 30 of one of the steel sheet piles 2 to the end portion 30 of the other, and spans the steel sheet pile 2. The longitudinal connection portion 3 is continuously formed along the material axis direction Y.

The flat plate portion 51 is such that a portion disposed on the end 30 side of one of the steel sheet piles 2 is an upper plate portion 51a, and a portion disposed on the other end 30 side of the steel sheet piles 2 is a lower plate portion 51b. . At this time, the flat plate portion 51 is formed with one or a plurality of connecting side protrusions 50 each of the upper plate portion 51a and the lower plate portion 51b, and forms one or a plurality of screw holes 40 penetrating along the material axis orthogonal direction X.

The connecting-side protruding portion 50 protrudes from the flat plate portion 51 toward the side surface 31 of the end of the steel sheet pile 2 and in the orthogonal direction X of the material axis. The connection member 5 forms a plurality of connection-side protrusions 50 spaced from each other in the material axis direction Y, and forms a connection-side groove portion 52 at a portion where the plurality of connection-side protrusions 50 adjacent to each other in the material axis direction Y are spaced apart from each other. In this embodiment, in this embodiment, a plurality of connection-side protrusions 50 are provided in the upper plate portion 51a and the lower plate portion 51b, respectively.

As shown in FIG. 11, the connecting-side protruding portion 50 is the most protruding portion in the protruding direction, that is, the material-axis orthogonal direction X. The connecting-side protruding portion 50 serves as the front end surface 50c of the material-axis orthogonal direction X in the connecting-side protruding portion 50 to form the front end surface 50c. The inner side surface 50a and the outer side surface 50b which are continuous up to the bottom surface of the connection side groove portion 52 have been formed.

The connecting-side protruding portion 50 is located in the material-axis direction Y and is close to the longitudinal connection portion 3. The inner-side surface 50 a of the connecting-side protruding portion 50 in the material-axis direction Y is arranged. Moreover, the outer side surface 50b of the material axis direction Y in the connection side protrusion part 50 is arrange | positioned in the material axis direction Y and the direction side away from the longitudinal connection part 3. As shown in FIG. Then, a vertical symmetry is formed with the vertical connection site 3 as a boundary.

As shown in FIG. 9, the steel member-side protruding portion 60 protrudes from the side surface 31 of each steel sheet pile 2 toward the connecting member 5, and one or a plurality of steels are formed on the side surface 31 of each steel sheet pile 2.制件 边 突 部 60。 Manufacturing member side protrusion 60. At this time, in the longitudinal connection portion 3 of the steel sheet pile 2, a plurality of steel member side protrusions 60 spaced apart from each other in the material axis direction Y are formed, and a plurality of steel member side protrusions adjacent to the material axis direction Y are formed. The portions 60 separated from each other form a steel member side groove portion 62.

As shown in FIG. 9, the steel member-side protrusion 60 is a plate-like member 6 provided on a steel plate or the like mounted on the end portion 30 of each steel sheet pile 2 by welding or the like. The plate-like member 6 protrudes in the direction X perpendicular to the material axis.

The plate-like member 6 has a plurality of steel member-side protrusions 60 formed to extend continuously in the wall width direction Z. The plate-like member 6 and the plate-like member are subjected to hot rolling, hot rolling, or cold rolling. 6 is integrally formed. In addition, by processing such as cutting processing of the thick plate steel plate by machining, the steel member-side protruding portion 60 can also be integrally formed on the plate-like member 6. In addition, the steel plate forming the steel member-side protruding portion 60 is welded to the side surface of the steel plate serving as the plate-like member 6, so that the steel member-side protruding portion 60 can be integrally formed on the plate-like member 6.

The steel member-side protrusion 60 is not limited to the form in which the plate-like member 6 is attached to the end portion 30 of each steel sheet pile 2. As shown in the modified example of FIG. 10, the steel member-side protrusion 60 will be a flat steel. It is also possible to form a steel member-side protruding portion 60 by directly welding to the end portion 30 of each steel sheet pile 2. The steel member-side protruding portion 60 is a flat steel or the like that becomes the steel member-side protruding portion 60 is directly provided on the end portion 30 of the steel sheet pile 2 to thereby connect the connecting member 5 from the end portion side 31 of each steel sheet pile 2. On the other hand, it protrudes in the direction X orthogonal to the material axis.

As shown in FIG. 11, the steel member-side protruding portion 60 has a portion protruding most toward the material-axis orthogonal direction X as the front end surface 60 c of the material-axis orthogonal direction X of the steel member-side protruding portion 60. It continues from the front end surface 60c to the inner side surface 60a and the outer side surface 60b of the steel member side groove part 62. Then, the steel member-side protruding portion 60 is such that the inner side surface 60 a of the material axis direction Y of the steel member-side protruding portion 60 is arranged so that the material axis direction Y is close to the longitudinal connection portion 3. In addition, the outer side surface 60b of the material axis direction Y in the steel member side protrusion 60 is a direction side which is located apart from the longitudinal connection part 3 in the material axis direction Y.

As shown in FIG. 2, the connecting member 5 slides in the wall width direction Z along the side surface 31 of the end of the steel sheet pile 2 provided with the steel member side protrusion 60, thereby being erected in the longitudinal direction of the plurality of steel sheet piles 2. Connection site 3. At this time, as shown in FIG. 9 and FIG. 10, the connecting member 5 is fitted with the connecting-side protruding portion 50 to the steel-member-side groove portion 62 that separates the plurality of steel-member-side protruding portions 60. Further, the steel member-side protruding portion 60 is fitted into a connecting-side groove portion 52 that separates the plurality of connecting-side protruding portions 50.

Here, as shown in FIG. 11, the steel member-side protrusion 60 is a steel member-side inclined surface that is inclined away from the longitudinal direction X of the material axis orthogonal to the material axis, as shown in FIG. 11. The longitudinal connection site 3 constitutes the boundary of the steel sheet piles 2 connected vertically. In addition, the steel member-side protruding portion 60 is formed by extending an inner side surface 60 a on the side close to the longitudinal connection portion 3 toward the material axis orthogonal direction X. Next, the steel member-side protrusion 60 has an inner side surface 60 a and a front end surface 60 c substantially orthogonal to the steel member-side protrusion 60, and the steel member-side protrusion 60 is formed into a single-sided tapered shape.

The connection-side protrusion 50, in which the outer side surface 60b of the side close to the longitudinal connection portion 3 is a connection-side inclined surface, which is inclined with respect to the material axis orthogonal direction X which is the protruding direction, and faces the steel member-side protrusion 60 On the outer side surface 60b, the longitudinal connection portion 3 constitutes the boundary of the steel sheet piles 2 connected longitudinally. Further, the steel member-side protruding portion 60 is formed by extending the outer side surface 60b of the side away from the longitudinal connection portion 3 toward the material axis orthogonal direction X. Next, the outer side surface 50b of the connection-side protrusion 50 is substantially orthogonal to the front end surface 50c, and the connection-side protrusion 50 is formed into a single-sided tapered shape.

Further, as shown in the modified examples of FIGS. 12 and 13, the connection-side protruding portion 50 and the steel member-side protruding portion 60 may be formed so that both sides 50a, 50b, 60a, and 60b of the material axis direction Y are inclined. Cone-shaped.

In the example of FIG. 12, the connection-side protrusion 50 and the steel member-side protrusion 60 tilt the inner side surface 50 a and the outside surface 50 b of the connection-side protrusion 50 in different directions, and make the steel member-side protrusion 60 The outer surface 60b and the inner surface 60a are inclined in different directions.

As shown in FIGS. 11 and 12, the connecting-side protruding portion 50 and the steel member-side protruding portion 60 have a front end surface 50c of the connecting-side protruding portion 50 that is wider from the flat plate portion 51 side toward the material axis direction Y. Further, the front end surface 60c of the steel member-side protruding portion 60 has a larger width in the material axis direction Y from the end portion side surface 31 side. In the examples of FIGS. 11 and 12, the connection-side protrusion 50 and the steel member-side protrusion 60 are formed in a single-sided cone shape or a double-sided cone shape in which the width of the front end side of the material axis orthogonal direction X is increased. shape.

In the example in FIG. 13, the outer side surface 50 b and the inner side surface 50 a of the connecting side protrusion 50 and the inner side surface 50 a of the connecting side protrusion 50 and the steel member side protrusion 60 are slightly parallel to each other. The side surface 60a and the outer surface 60b are slightly parallel. At this time, the connection-side protrusion 50 and the steel member-side protrusion 60 do not increase the width of the front end side of the material axis orthogonal direction X, but form the front side of the connection-side protrusion 50 toward the longitudinal connection portion 3. The shape of a side dump, such a shape also includes those that are tapered on both sides.

As shown in FIGS. 11 to 13, the connection-side protrusion 50 and the steel member-side protrusion 60 have, for example, a protrusion width w1 of about 20 mm to 60 mm at the front end side in the direction orthogonal to the material axis X and the material axis is orthogonal. The protruding height h in the direction X is about 10 mm to 30 mm. At this time, the connection-side protrusion 50 and the steel member-side protrusion 60 have a protrusion width w1 in the material axis direction Y on the front end side of the connection-side protrusion 50 and the material on the front end side of the steel member-side protrusion 60. The protrusion widths w1 in the axial direction Y are formed to be slightly the same as each other, and the protrusion heights h in the material axis orthogonal direction X are also formed to be the same as each other.

The connecting-side protruding portion 50 and the steel member-side protruding portion 60 are chamfered into corner portions C of the front end surface 50c and the inner side surface 50a or the outer side surface 50b of the connecting side protruding portion 50 by hot extrusion. Slightly curved or slightly straight. In addition, each corner portion C may be chamfered by machining. The connection-side protrusion 50 and the steel member-side protrusion 60 are such that the corner portion C of the front end surface 60c and the inner side surface 60a or the outer side surface 60b of the steel member-side protrusion 60 is also subjected to hot extrusion processing. The chamfer is slightly curved or straight.

The connection-side protrusion 50 and the steel member-side protrusion 60 have an opening width c1 in the material axis direction Y on the front end side of the connection-side groove 52 or the steel member-side groove 62 to approximately 10 mm to 50 mm. At this time, the connecting-side protruding portion 50 and the steel member-side protruding portion 60 add up the total extension length lp (= w1 + c1) of the total dimensions of the material-axis direction Y of the connecting-side protruding portion 50 and the connecting-side groove portion 52. The total extension length lp (= w1 + c1) of the material axis direction Y of the steel structure-side protruding portion 60 and the steel member-side groove portion 62 is formed to be slightly the same as each other.

The connection-side protrusions 50 and the steel member-side protrusions 60 are formed in shapes and sizes that are almost the same as each other. Then, as shown in FIG. 11 and FIG. 12, the connection-side protruding portion 50 and the steel member-side protruding portion 60 are formed into a single-sided tapered shape having a larger width before the end side of the material axis orthogonal direction X. When the two surfaces are tapered, the connection width w2 on the base end side in the orthogonal direction X of the material axis is much smaller than the protrusion width w1 on the front end side in the orthogonal direction X of the material axis. The interval width c2 of the material axis direction Y on the deep side of the connection side groove portion 52 or the steel member side groove portion 62 is much larger than the opening width c1 of the connection side groove portion 52 or the steel member side groove portion 62. Therefore, as described above, the connecting member 5 is slid along the side surface 31 of the end of the steel sheet pile 2 in the wall width direction Z, so that the connecting member 5 is mounted on the longitudinal connection portion 3 of the steel sheet pile 2.

When the connection-side protrusion 50 and the steel member-side protrusion 60 are formed to have a large width on the front end side of the material axis orthogonal direction X, the material-axis direction Y of the connection-side protrusion 50 and the connection-side groove portion 52 is added up. The total extension length lp and the protrusion width w1 satisfy the relationship specified by the following formula (1). In addition, the connection-side protrusion 50 and the steel member-side protrusion 60 are such that the total extension length lp and the protrusion width w1 of the material axis direction Y of the steel member-side protrusion 60 and the steel member-side groove 62 are combined to meet the borrowing requirements. The relationship specified by the following formula (1).

w1 ＞ lp / 2 ･ ･ ･ (1)

The connecting-side protruding portion 50 and the steel member-side protruding portion 60 are formed so that the protrusion width w1 on the front end side of the material axis orthogonal direction X is far smaller than the interval width c2 of the connecting-side groove portion 52 or the steel-member-side groove portion 62, And the connection width w2 on the base end side of the material axis orthogonal direction X is formed to be much smaller than the opening width c1 of the connection side groove portion 52 or the steel member side groove portion 62. Thereby, the connection-side protrusion 50 and the steel member-side protrusion 60 are separated from each other in the material axis orthogonal direction X, so that the inner side surface 50 a of the connection-side protrusion 50 and the steel member-side protrusion 60 can be separated from each other. The outer side surface 60b abuts and pushes, and becomes a connected state.

As shown in FIG. 14, the connection-side protrusion 50 and the steel-member-side protrusion 60 are spaced apart from each other before the transmission of the shaft member 14 to form a predetermined shape. Gap G. With this, in a state where the coupling-side protrusion 50 is fitted into the steel member-side groove portion 62 and the steel-member-side protruding portion 60 is fitted into the coupling-side groove portion 52, it becomes at least the coupling-side protrusion 50. The inner surface 50 a and the outer surface 60 b of the steel member-side protrusion 60 are separated from each other in the material axis direction Y.

As shown in FIG. 15, the fixing member 4 moves the connecting member 5 in the material-axis orthogonal direction X, and the material-axis orthogonal direction X is formed between the flat plate portion 51 of the connecting member 5 and the steel member-side protruding portion 60. In the state of the gap SP, the inner side surface 50 a of the connecting member 5 is pushed against the inner side surface 60 a of the opposing steel member side protrusion 60.

As the fixing member 4, a shaft member 41 is mainly used. The shaft member 41 penetrates the connecting member 5 and abuts on the steel member-side protrusion 60 or the end surface 31 of the steel sheet pile 2. The shaft member 41 uses a bolt which penetrates the connecting member 5 and is screwed into the threaded hole 40 formed by the screw. Other examples are the use of screws, screws, or drills to make the front ends 41a of the bolts abut. On the steel member side protrusion 60 and the like.

When the shaft member 41 is formed with a screw hole 40 that opens into the coupling-side groove portion 52 of the coupling member 5, the front end portion 41a of a bolt or the like is brought into contact with the steel member-side protruding portion 60. As shown in FIG. 16, the shaft member 41 is another example of a configuration in which a screw-hole 40 is formed on the connecting-side protruding portion 50 of the connecting member 5 and a steel-member-side protruding portion 60 is directly provided on the end portion 30 of the steel sheet pile 2. Alternatively, the front end portion 41 a of the bolt or the like may be brought into contact with the end portion side surface 31 of the steel sheet pile 2.

Further, as shown in FIG. 17, the shaft member 41 has screw holes 40 formed on the coupling-side protruding portion 50 of the coupling member 5, and a plate-like member 6 formed integrally with the steel-member-side protruding portion 60 is attached to the end of the steel sheet pile 2. As another example of the form of the portion 30, the front end portion 41 a such as a bolt may be brought into contact with the plate-like member 6.

As the fixing member 4, as shown in FIG. 18, a shaft member 41 may be used. The shaft member 41 penetrates the end portion 30 of the steel sheet pile 2 and abuts the connection member 5. Then, the shaft member 41 uses a bolt, which penetrates the end portion 30 of the steel sheet pile 2 and is screwed into the screw hole 40 formed by the screw. Other examples are using screws, screws or drills, etc. The front end portion 41 a is in contact with the connecting member 5 and the like.

As shown in FIG. 18, when the shaft member 41 is attached to the steel member-side protrusion 60 directly at the end portion 30 of the steel sheet pile 2, the portion that becomes the steel member-side groove portion 62 is at the end portion 30 of the steel sheet pile 2. Forming a screw hole 40. Then, the front end portion 41 a of the bolt or the like screwed into the screw hole 40 is in contact with the connection-side protruding portion 50 of the connection member 5.

As shown in FIG. 19, the shaft member 41 is also provided with a screw hole 40 when the plate-like member 6 attached to the end portion 30 of the steel sheet pile 2 is formed with a bolt or the like that penetrates the end of the steel sheet pile 2. The portion 30 and the plate-like member 6 are in contact with the connecting member 5.

As shown in FIG. 14, the shaft member 41 is immediately after the connection-side protrusion 50 and the steel member-side protrusion 60 are fitted, and then the front end portion 41 a which is a bolt or the like is abutted against the steel member-side protrusion 60 or the like. Of the state. That is, as shown in FIG. 15, the shaft member 41 is a bolt or the like screwed into the screw hole 40 screwed into the connecting member 5.

Next, the shaft member 41 is subjected to a reaction force associated with screwing due to bolts and the like that abut on the steel member-side protruding portion 60 from the front end portion 41a, as shown in Figs. 15 to 19. In the orthogonal direction X, the connecting member 5 is moved in a direction away from the side surface 31 of the end portion of the steel sheet pile 2.

As shown in the modified examples of FIGS. 20 and 21, the fixing member 4 may be a wedge-shaped member 42 that moves the connecting member 5 in the direction X orthogonal to the material axis. The wedge-shaped member 42 is sandwiched between the connecting member 5. And the side surface 31 of the end portion of the steel sheet pile 2. In the present embodiment, the wedge-shaped member 42 is provided on one side of the material axis direction X as an example, but wedge-shaped members 42 may be provided on both sides with respect to the material axis direction X of the connecting member 5.

The wedge-shaped member 42 is formed into a slightly wedge-shaped shape, and the tapered shape is formed between the connecting member 5 and the end surface 31 of the steel sheet pile 2 from the leading portion 42a which is driven first, and the thickness of the plate is increased.

As shown in FIG. 20, the wedge-shaped member 42 is immediately fitted with the connection-side protrusion 50 and the steel member-side protrusion 60, and then is driven from the leading portion 42 a between the connection member 5 and the end surface 31 of the steel sheet pile 2. Into. Next, as shown in FIG. 21, the wedge-shaped member 42 is further driven between the connecting member 5 and the side surface 31 of the steel sheet pile 2, and the connecting member 5 is separated from the steel sheet pile 2 in the orthogonal direction X of the material axis. The end side surface 31 moves in the direction.

In addition, as the fixing member 4, in addition to using any one of the shaft members 41 shown in FIGS. 14 to 19 or the wedge-shaped member 42 shown in FIGS. 20 and 21, the shaft member 41 and the wedge-shaped member may be combined. 42 is used to move the connecting member 5 along the material axis orthogonal direction X.

As shown in FIG. 22, the fixing member 4 is formed as the inner side surface 50a of the connection side protrusion 50 and the steel member side protrusion in a state before the connection member 5 is moved in a direction away from the end side surface 31 of the steel sheet pile 2. The outer side surfaces 60b of the portion 60 are separated from each other in the material axis direction Y. Next, as shown in FIG. 23, the fixing member 4 is formed in the inner side surface 50a of the connection side protrusion 50 and the steel member side in a state where the connection member 5 is moved away from the end surface 31 of the steel sheet pile 2. The outer side surfaces 60b of the protrusions 60 are in a state of approaching each other in the material axis direction Y.

As shown in FIG. 22 and FIG. 23, the fixing member 4 is formed by connecting the inner side surface 50 a of the connecting-side protruding portion 50 with steel when the connecting-side protruding portion 50 and the steel-member-side protruding portion 60 are each formed into a single-sided tapered shape. The outer side surfaces 60b of the member-side protrusions 60 are brought into close contact with each other.

Further, as shown in FIGS. 24 and 25, the fixing member 4 is formed so that the connection-side protrusions 50 and the steel member-side protrusions 60 are each formed into a substantially parallel two-sided tapered shape as shown in FIG. 24 and FIG. 25. The inner side surface 50 a and the outer side surface 60 b of the steel member-side protruding portion 60 approach each other and come into contact with each other.

As shown in FIGS. 26 to 29, the fixing member 4 also becomes the inner side surface of the connection-side protrusion 50 when the connection-side protrusion 50 and the steel member-side protrusion 60 are each formed into a double-sided tapered shape having a large width. 50a and the outer side surface 60b of the steel member side protrusion 60 are in a state close to each other.

At this time, in a state before the connection member 5 is moved, as shown in FIG. 26, for example, the gap G between the inner side surface 50 a of the connection side protrusion 50 and the outer side surface 60 b of the steel member side protrusion 60 is much smaller than the connection. A gap G separating the outer side surface 50 b of the side protrusion 50 from the inner side surface 60 a of the steel member side protrusion 60.

Next, the fixed member 4 is in a state after the connecting member 5 is moved, and as shown in FIG. 27, the inner side surface 50 a of the connecting-side protrusion 50 and the outer side surface 60 b of the steel-member-side protruding portion 60 approach each other so as to come into contact with each other. Of the state.

Also, in a state before the connecting member 5 is moved, as shown in FIG. 28, the gap G separating the inner side surface 50 a of the connecting-side protruding portion 50 and the outer side surface 60 b of the steel-member-side protruding portion 60 may be formed to be large. A gap G is formed between the outer side surface 50 b of the connection-side protruding portion 50 and the inner side surface 60 a of the steel member-side protruding portion 60.

At this time, the fixing member 4 is in a state after the connecting member 5 is moved. As shown in FIG. 29, the inner side surface 50a of the connecting side protrusion 50 and the outer side surface 60b of the steel member side protrusion 60 are close to each other but not Abutting state.

Further, in a state before the connecting member 5 is moved, a gap G spaced apart from the inner side surface 50 a of the connecting-side protruding portion 50 and the outer side surface 60 b of the steel-member-side protruding portion 60, and the connecting-side protruding portion 50 may be configured. The gap G between the outer side surface 50b and the inner side surface 60a of the steel member-side protruding portion 60 is the same size. At this time, the fixing member 4 is in a state where both sides of the connection-side protruding portion 50 and the steel-member-side protruding portion 60 are brought close to each other in a state after the connecting member 5 is moved until they come into contact with each other.

The steel member side grooves 62 between the plurality of steel member side protrusions 60 arranged in the material axis direction Y are arranged with the connection side protrusions 50 of the connection member 5, and the connection side grooves 52 between the connection side protrusions 50. Then, the steel member-side protrusion 60 is arranged.

As shown in FIG. 11, the connection-side protrusions 50 of the steel-member-side grooves 62 disposed between the steel-member-side protrusions 60 are arranged as shown in FIG. 11, and the steel-member-side protrusions 60 arranged in a direction away from the longitudinal connection portion 3 function as The stopper functions to limit the detachment in a direction away from the longitudinal connection portion 3.

Here, the steel member-side protrusions 60 arranged in a direction away from the longitudinal connection portion 3 are shown as being based on the steel plate-side protrusions 50 abutted by the inner side surface 50 a of the connection-side protrusions 50 as a reference, and are arranged so as to be separated from the longitudinal connection. The steel member-side protrusion 60 in the direction of the part 3.

In addition, the stopper is not the only one showing the form in which the inner side surface 60 a of the steel member-side protruding portion 60 abuts against the outer side surface 50 b of the connecting-side protruding portion 50. For example, even if the inner side surface 60a of the steel member-side protrusion 60 is separated from the outer side surface 50b of the connection-side protrusion 50, as long as the connection-side protrusion 50 can be abutted against the connection-side protrusion 50 to restrict separation, Can constitute a stopper.

(Action) The longitudinal connection member 1 of the steel member forms a gap G that separates the connection-side protrusion 50 from the steel member-side protrusion 60 so that the connection-side protrusion 50 and the steel-member-side protrusion 60 Smooth fit. In this way, since the longitudinal connection structure 1 of the steel member smoothes the fitting operation of the connection-side protrusion 50 and the steel member-side protrusion 60, it is possible to easily and quickly connect a plurality of steel plates in the material axis direction Y. The operation of pile 2.

As shown in FIG. 1, the longitudinal connection member 1 of the steel member has a bending load effect when the steel plate piles 2 are embedded in the site 8, or when the steel plate piles 2 are embedded in the site 8. A plurality of steel sheet piles 2 are connected at their longitudinal connection points 3.

Next, as shown in FIG. 2, the longitudinal connection member 1 of the steel member is to slide the connection member 5 to fit the connection-side protrusion 50 and the steel member-side protrusion 60 to form the initial stage when the steel receives the load. After the state, it is provided at the longitudinal connection portion 3 to ensure sufficient bending rigidity to the same extent as the steel sheet pile 2 body.

As shown in FIG. 30, the longitudinal connection member 1 to which the steel member disclosed herein is applied has a compression force P due to a bending load acting in a direction in which the plurality of steel sheet piles 2 approach each other in the material axis direction Y. At this time, from the state immediately after the connection-side protruding portion 50 and the steel member-side protruding portion 60 are fitted, the end faces 30a of the end portions 30 of the respective steel sheet piles 2 are brought into contact with each other at the longitudinal connection portions 3, thereby making it possible to plurally Each of the steel sheet piles 2 transmits the compression force P to each other. In addition, even if there are some gaps between the end faces 30a of the steel sheet piles 2, when the bending load is input, the compressive force can be achieved between the steel sheet piles 2 when the end faces 30a of the steel sheet piles abut each other. Pass of P.

As shown in FIG. 31, a tensile force T due to a bending load acts in a direction in which the plurality of steel sheet piles 2 are spaced from each other in the material axis direction Y. At this time, in the longitudinal connection structure 1 of the steel member to which the present disclosure is applied, the connecting member 5 is moved by the fixing member 4 so that, as shown in FIGS. 22 to 27, the inner side surface 50 a of the connecting-side protrusion 50 is formed. And the outer side surface 60b of the steel member-side protruding portion 60 is brought into close contact with each other.

Here, the outer side surface 60b of the steel member side protrusion 60 is inclined with respect to the material axis orthogonal direction X, and the inner side surface 50a of the connecting side protrusion 50 pushed against the outer surface 60b is also orthogonal to the material axis. The direction X is tilted.

Next, the longitudinal connection structure 1 of the steel member to which the present disclosure is applied is such that the inner side surface 50 a of the connection side protrusion 50 and the outer side surface 60 b of the steel member side protrusion 60 abut without causing the gap G. Shake. For this reason, immediately after the tensile tension T acts, the plurality of steel sheet piles 2 can transmit the tensile tension T (see FIG. 31) to each other through the flat plate portion 51 of the connecting member 5.

In this way, the compressive force P and the tensile tension T can be transmitted after the connection-side protruding portion 50 and the steel member-side protruding portion 60 are fitted together or at an earlier stage. For this reason, while the fitting operation of the connection-side protruding portion 50 and the steel member-side protruding portion 60 can be smoothly performed, a plurality of steel sheet piles can be tenaciously connected in the material axis direction Y by the connecting member 5 having the flat plate portion 51. 2. That is, compared with the form in which the shear force of the bolts connecting the steel sheet piles 2 to each other to thereby show the endurance, it can exert a large endurance as the tensile tension of the flat plate portion 51, and can ensure a full initial bending rigidity.

The longitudinal connection member 1 to which the steel member disclosed herein is applied is a plurality of longitudinal connection portions 3 of the steel sheet piles 2 to ensure full initial bending rigidity, and the longitudinal connection portions 3 of the plurality of steel sheet piles 2 are difficult to become structural. weakness. In addition, compared with the form in which the steel sheet piles 2 are welded to each other and in the longitudinal connection portion 3 on the spot, or the steel sheet piles 2 are connected to each other longitudinally by the shearing force of most high-strength bolts or the frictional joint force during tightening, the construction period can be avoided on one side It is elongated and avoids a reduction in the bending rigidity of the entire steel sheet pile 2 that has been longitudinally connected.

In this state, the connection-side protrusions 50 of the steel-member-side grooves 62 disposed between the steel-member-side protrusions 60 stop the steel-member-side protrusions 60 arranged in a direction away from the longitudinal connection portion 3. It is necessary to limit the detachment in the direction away from the longitudinal connection part 3 by functioning.

For this reason, the tensile tension T from the steel member-side protrusion 60 acts as a force that deforms the connection-side protrusion 50, and it may be arranged on the steel member-side protrusion 60 in a direction away from the longitudinal connection portion 3. Overturning of the connection-side protrusion 50 is suppressed.

Thereby, it is possible to suppress the opening of the connecting-side groove portion 52 formed between one of the steel member-side protruding portion 60 on one side and the other-side steel-member-side protruding portion 60 bounded by the longitudinal connection portion 3. between. As a result, load resistance can be improved as compared with a case where a plurality of steel member-side protrusions 60 are simply provided, and unintended detachment of the connecting member 5 can be suppressed.

In addition, as shown in Figs. 14 to 19, the longitudinal connecting member 1 to which the steel member of the present disclosure is applied uses a shaft member 41 such as a bolt as the fixing member 4 so as to be screwed to the front end of the bolt or the like of the screw hole 40 The portion 41 a is in contact with the steel member-side protruding portion 60 and the like. At this time, the front end portion 41 a of the shaft member 41 abuts against the steel member-side protrusion 60 and the like, thereby suppressing the lateral sliding of the connection-side protrusion 50 and the steel member-side protrusion 60 and preventing the inevitable connection member 5. Expected shedding.

As shown in the modified examples of FIGS. 20 and 21, a wedge-shaped member 42 is used as the fixing member 4, and the wedge-shaped member 42 is sandwiched and driven between the connecting member 5 and the end surface 31 of the steel sheet pile 2. In this way, the connecting member 5 can be orthogonal to the material axis X. In this case, since a hole-cutting operation for the connecting member 5 and a screwing operation of a bolt or the like are not required, the structure of the connecting member 5 can be easily realized.

When necessary, as shown in FIGS. 11 to 13, it is preferable to chamfer the corner portions C of the connecting-side protruding portion 50 and the steel member-side protruding portion 60 by hot extrusion. Thereby, the hot extrusion processing of the corner part C of the connection side protrusion part 50 and the steel member side protrusion part 60 can be performed easily, and the workability of the connection side protrusion part 50 and the steel member side protrusion part 60 can be improved.

In addition, when the connection-side protrusion 50 and the steel member-side protrusion 60 are formed in approximately the same shape and size, and the front side is a single-sided tapered shape or a double-sided tapered shape with a large width, the connecting-side protrusions are added up. The total extension length lp and the protrusion width w1 of the material axis direction Y of the portion 50 and the connecting side groove portion 52 satisfy the above-mentioned formula (1). At this time, it is possible to prevent the coupling-side protruding portion 50 and the steel member-side protruding portion 60 from being disengaged from the fitting state toward the material axis orthogonal direction X.

In addition, the longitudinal connection member 1 to which the steel member of the present disclosure is applied is a plurality of steel members connected to a specific cross-sectional shape in the material axis direction Y, and is not limited thereto. For example, a steel sheet pile 2 such as a hat-shaped steel sheet pile 21 having a slightly hat shape in a cross section shown in FIGS. 3 to 5 can be used as a steel member. Also, the H-shaped steel 24 shown in a slightly H-shaped cross section in FIG. 32, the angular steel pipe 25 in a slightly rectangular cross-section in FIG. 33, or the round steel pipe 26 in a slightly rounded cross-section in FIG. 34 is shown. It can also be used as a steel member and connected in the material axis direction Y.

Then, the connecting member 5 has a flat flat plate portion 51, which is easier to manufacture and process than a form having a circular arc shape, and the workability at the time of vertical connection is also improved. When the round steel pipes 26 are longitudinally connected, the longitudinal steel pipes may be longitudinally connected at a number of points away from the circumferential direction. For this reason, workability can be improved more than in the case where the round steel pipe 26 has to be connected vertically by the connecting member 5 over the entire circumference.

As shown in FIG. 6, in addition to erecting a connecting member 5 to the end portion 30 of the steel sheet pile 2, for example, as shown in FIG. 35, the end portion 30 of the steel sheet pile 2 may be sandwiched from the direction orthogonal to the material axis X. Two connection members 5 are erected, and the position and number of connection members 5 are not limited.

Next, with reference to the drawings, another embodiment for implementing the longitudinal connection structure 1 of a steel member to which the present disclosure is applied will be described in detail. In addition, the same components as those described above are denoted by the same reference numerals, and the following description is omitted.

As shown in FIG. 36 and FIG. 37, the longitudinal connection member 1 to which the steel member of the present disclosure is applied is formed with a plurality of connection-side protrusions 50 and steel member-side protrusions 60 spaced from each other in the material axis direction Y.

The fixing member 4 is formed in a state where the coupling-side groove portion 52 between the coupling-side protrusions 50 is fitted into the steel-member-side protrusion portion 60 or the steel-member-side groove portion 62 is fitted and coupled between the steel-member-side protrusion 60. At least one of the states of the side protrusions 50.

In this embodiment, the connecting member 5 is moved in the direction orthogonal to the material axis X toward the end side surface 31 of the steel sheet pile 2 (arrow symbol in FIG. 36), so that each side surface 50 a of the connecting-side protruding portion 50 is moved. And 50b abut on each side surface 60a, 60b of the steel member side protrusion 60 (refer FIG. 39). At this time, a compressive force acts on the connection-side protruding portion 50 from the connection member 5 side toward the steel sheet pile 2 side. Thereby, the connection side protrusion part 50 of the connection member 5 is bridged by the steel member side protrusion part 60, and it is set up in the longitudinal connection part 3 of the steel sheet pile 2.

In addition, FIG. 36 and FIG. 37 show a configuration in which a steel member-side protruding portion 60 is provided on the plate-like member 6 attached to the end portion 30 of each steel sheet pile 2, but the invention is not limited to this. For example, as shown in the modification of FIG. 38, flat steel or the like that becomes the steel member-side protruding portion 60 may be directly attached to the end portion 30 of each steel sheet pile 2 by welding or the like.

As shown in FIGS. 39 and 40, the connection-side protrusions 50 and the steel member-side protrusions 60 are formed on the side surfaces 50 a and 50 b of the connection-side protrusion 50 and the side surfaces 60 a and 60 b of the steel member-side protrusion 60. It has a tapered shape inclined with respect to the material axis orthogonal direction X.

The connecting-side protruding portion 50 is formed in a shape in which the flat plate portion 51 side becomes wider in the material axis direction Y than the front end surface 50c side. The steel member-side protruding portion 60 is formed in a shape that the end surface side 31 side becomes wider in the material axis direction Y than the front end surface 60c side. In other words, the shapes of the connection-side protruding portion 50 and the steel member-side protruding portion 60 as viewed from the Z direction are trapezoids having the front end surfaces 50c and 60c sides as short sides, respectively.

The connection-side protrusion 50 and the steel member-side protrusion 60 are, for example, shown in FIG. 39, and are formed in a two-sided tapered shape in which each side surface 50 a, 50 b, 60 a, and 60 b is inclined toward the material axis orthogonal direction X. At this time, the connection-side protrusion 50 and the steel member-side protrusion 60 incline the inner side surface 50a and the outer side surface 50b of the connection-side protrusion 50 in different directions, and the inner side surface 60a of the steel-member-side protrusion 60 It is inclined in a different direction from the outer surface 60b.

The connection-side protrusions 50 and the steel member-side protrusions 60 have been described in the form in which the inner side surface 50 a of the connection-side protrusion 50 and the steel member-side protrusion 60 60 b are inclined with respect to the material axis orthogonal direction X. But it is not limited to this. For example, as shown in the modification of FIG. 40, the outer side surface 50a of the connection side protrusion 50 and the inner side surface 60a of the steel member side protrusion 60 may have a single-sided tapered shape inclined with respect to the material axis orthogonal direction X.

As shown in FIGS. 39 and 40, the fixing member 4 uses a shaft member 41 which penetrates through a hole 5 a provided in the connecting member 5 and is inserted into a hole 60 d provided in the protrusion 60 on the steel member side. Further, as shown in a modification of FIG. 41, the hole 30b provided in the end portion 30 of the steel sheet pile 2 may be penetrated, and the hole 50d provided in the connection-side protruding portion 50 may be inserted. Here, the insertion indicates a state where it is partially inserted although it does not penetrate.

As the shaft member 41, for example, a bolt or the like is used, as shown in a modification of FIG. 40, the hole 60d provided on the steel member side protrusion 60 is screw-engraved, or as shown in FIG. 41, it is screwed on the connection side provided. A hole 50d of the protrusion 50. At this time, whether a hole 5a provided in the connecting member 5 or a hole 30b provided in the end portion 30 of the steel sheet pile 2 to pass through by a bolt or the like is arbitrarily screwed.

For the shaft member 41, for example, as shown in the modification of FIG. 42, a bolt or the like may be passed from a hole 5a provided in the connecting member 5 to a hole 30b provided at the end portion 30 of the steel sheet pile 2, and screwed to the nut 43 or the like. . At this time, whether the hole 5a provided in the connecting member 5 or the hole 30b provided in the end portion 30 of the steel sheet pile 2 is to be engraved is optional.

When the hole 5 a provided in the connection member 5 or the hole 30 b provided in the end portion 30 of the steel sheet pile 2 is not screw-engraved, for example, it may be formed larger than the shape of the shaft member 41.

Thereby, when the connecting member 5 is moved by the shaft member 41, the position of the connecting member 5 in the material axis direction Y can be adjusted so that each side 50a, 50b of the connecting-side protrusion 50 and the steel-member-side protruding 60 The side surfaces 60a, 60b are in conflict. In addition, at least one of the state where the steel member side protrusions 60 are fitted to the connection side groove portion 52 or the state where the connection side protrusions 50 are fitted to the steel member side groove portion 62 can be easily realized.

In addition, the hole 5a provided in the connecting member 5 or the hole 30b provided in the end portion 30 of the steel sheet pile 2 may be a long hole having the material axis direction Y as a long side when it is not engraved. At this time, when the connecting member 5 is moved by the shaft member 41, the range of the adjustable position of the connecting member 5 in the material axis direction Y can be enlarged. Thereby, at least any one of the state where the steel member side protrusion part 60 is fitted in the connection side groove part 52 or the state where the connection side protrusion part 50 is fitted in the steel member side groove part 62 is more easily realizable.

The longitudinal connection structure 1 of the steel member to which the present disclosure is applied, as shown in the modified examples of FIG. 43 and FIG. 44, is temporarily fixed by the accommodating material 44 and the like in a state where the connecting member 5 is close to the steel member side protrusion 60. For example, it may be fixed in a state where a part of the connecting member 5 is in contact with the steel member-side protrusion 60.

For example, the Z-shaped steel is used as the temporary accommodating material 44, and the pair of temporary accommodating materials 44 is provided by sandwiching the steel member-side protrusion 60 in the material axis direction Y. One end of the temporary storage material 44 is fixed to the side surface 31 of the end portion of the steel sheet pile 2 with a bolt or the like, and one end of the temporary storage material 44 can be rotated with a bolt or the like as an axis. In a state where the connecting member 5 is brought close to the steel member-side protrusion 60, the temporary accommodating material 44 is rotated while abutting on the connecting member 5 (arrow symbol in FIG. 44), thereby temporarily connecting the temporary accommodating material 44 to be connected. The member 5 is fixed in the material axis direction Y.

After the connecting member 5 is temporarily fixed via the temporary accommodating material 44, as shown in FIG. 45, the shaft member 41 is penetrated through the hole 5a provided in the connecting member 5, and is inserted into the hole provided in the steel member-side protrusion 60. Temporarily fixed for 60d. A part of the shaft member 41 is temporarily caulked, for example, in a state where the shaft member 41 is screw-engaged with a hole 60d that is engraved in the steel member-side protrusion 60.

In addition, the longitudinal connection structure 1 of the steel member to which the present disclosure is applied, for example, the temporary connection member 44 may not be used, and the connecting member 5 may be approached or abutted against the steel member-side protrusion 60 through the shaft member without using the temporary storage material 44. 41 while temporarily filling and fixing.

Next, as shown in FIG. 46, the shaft member 41 is screwed into a hole 60 d provided in the steel member-side protrusion 60. At this time, the shaft member 41 is at least one of a state where the steel member-side protrusion 60 is fitted into the connection-side groove portion 52 or a state where the connection-side protrusion 50 is fitted into the steel-member-side groove portion 62. In this state, the connecting member 5 is moved in a direction approaching the end side surface 31 in the material axis orthogonal direction X. At this time, the connection-side protrusion 50 is brought into contact with the two adjacent steel member-side protrusions 60.

For example, when the shaft member 41 is screwed into the hole 60d provided in the steel member-side protrusion 60, the inner side surface 50a of the connection-side protrusion 50 and the steel member-side protrusion 60 may be adjacent to each other. 60b, or at least any one of the outer side surface 50b of the connection-side protruding portion 50 and the inner side surface 60a of the steel member-side protruding portion 60 that are adjacent to each other are brought into contact with each other.

At this time, the area where the inner side surface 50a of the adjacent connection-side protrusion 50 and the outer surface 60b of the steel member-side protrusion 60 contact with each other, or the outer side 50b of the connection-side protrusion 50 adjacent to each other and the steel In a state where at least any one of the contact areas of the inner side surface 60 a of the member-side protruding portion 60 is large, the shaft member 41 moves the connecting member 5 in the direction orthogonal to the material-axis direction X toward the end portion side surface 31.

After the shaft member 41 is screwed into the hole 60d provided in the steel member-side protrusion 60, it is tightened even more. In this way, the shaft member 41 is subjected to a compressive force acting on the connection member 5 from the connection member 5 side toward the steel sheet pile 2 side. Thereby, a frictional force is generated between the contact portion of the connection-side protrusion 50 and the adjacent two steel member-side protrusions 60, and the connection-side protrusion 50 is locked by the two adjacent steel member-side protrusions 60. Stop in the direction of the material axis Y. At this time, the front end surface 50c of the connection-side protrusion 50 may be spaced from the steel member-side groove portion 62, and the front end surface 60c of the steel-member-side protrusion 60 may be spaced from the connection side groove 52.

As shown in FIG. 47 and FIG. 48, the connection-side protrusion 50 and the steel member-side protrusion 60 may have a protruding height h1b of the material-axis orthogonal direction X of the connection-side protrusion 50 to the steel member. The protruding height h1a of the material axis orthogonal direction X of the side protrusions 60 is slightly equal. At this time, the minimum interval width c2a of the minimum groove width of the steel member-side groove portion 62 is formed to be equal to or smaller than the protrusion width w1b in the material axis direction Y of the front end surface 50c of the connection-side protrusion portion 50. Alternatively, the minimum gap width c2b of the minimum groove width of the connecting side groove portion 52 is formed to be equal to or smaller than the protrusion width w1a in the material axis direction Y of the front end surface 60c of the steel member-side protrusion 60.

At this time, when the fixing member 4 moves the connecting member 5, as shown in FIG. 49 as an example, the edge of the front end surface 50c of the connecting side protrusion 50 abuts on the steel member side groove portion 62, or is separated. In the state, the side surfaces 50a, 50b of the connection-side protruding portion 50 are in contact with the side surfaces 60a, 60b of the two adjacent steel member-side protruding portions 60 (see FIG. 49).

When the fixing member 4 moves the connecting member 5, as shown in FIG. 50 as another example, a state where the edge of the front end surface 60c of the steel member-side protruding portion 60 is in contact with the connecting-side groove portion 52, or is separated. Next, each side surface 60a, 60b of the steel member side protrusion part 60 contacts each side surface 50a, 50b of two adjacent connection side protrusion parts 50.

In this way, when the connection-side protrusion 50 and the steel member-side protrusion 60 have the protruding height h1b of the connection-side protrusion 50 and the steel member-side protrusion 60 h1a being slightly the same, the following relationship is satisfied, that is, steel The minimum gap width c2a of the side groove portion 62 of the manufacturing member is a relationship below the protrusion width w1b of the connecting side protrusion 50, or the minimum gap width c2b of the side groove portion 52 of the connecting member is a relationship below the protrusion width w1a of the steel member side protrusion 60 At least one of them.

Thereby, the connection-side protrusion 50 and the steel member-side protrusion 60, of which the connection-side protrusion 50 and the two adjacent steel-member-side protrusions 60 move with the movement of the connection member 5 by the fixing member 4. Abut surely. For this reason, the connection-side protruding portion 50 is reliably locked in the material axis direction Y by the two adjacent steel member-side protruding portions 60.

In particular, the connection-side protrusion 50 and the steel member-side protrusion 60 have a protrusion height h1b at the connection-side protrusion 50 that is slightly the same as the protrusion height h1a of the steel member-side protrusion 60, and the protrusion width w1b of the front end surface 50c and The minimum interval width c2a is slightly the same, and when the protrusion width w1a of the front end surface 60c is slightly the same as the minimum interval width c2b, the volume of the interval between the connection-side protrusion 50 and the steel member-side protrusion 60 can be reduced. Therefore, the contact area between the connection-side protruding portion 50 and the steel member-side protruding portion 60 is increased, and stress concentration can be avoided.

(Action) The longitudinal connection structure 1 of the steel member to which the present disclosure is applied, for example, as shown in FIGS. 47 and 48, the inner side surface 50a of the connection side protrusion 50 and the outer side surface 60b of the steel member side protrusion 60, or the connection At least one of the outer surface 50 b of the side protrusion 50 and the inner surface 60 a of the steel member side protrusion 60 is slightly parallel. Thereby, the contact area between the inner side surface 50a of the adjacent connection-side protrusion 50 and the outer surface 60b of the steel member-side protrusion 60, or the outer surface 50b of the connection-side protrusion 50 and the steel member adjacent to each other. At least any one of the contact areas of the inner side surface 60a of the side protrusion 60 may be made larger. Therefore, the load transmission between the connection-side protrusion 50 and the steel member-side protrusion 60 can be easily performed.

Next, for example, as shown in FIGS. 49 and 50, the inner side surface 50a of the connection-side protrusion 50 and the outer surface 60b of the steel member-side protrusion 60, or the outer surface 50b of the connection-side protrusion 50 and the steel member-side protrusion At least one of the inner side surfaces 60a of the portion 60 has a shape having a different pushing angle. In this form, it can be set as the state which the connection side protrusion part 50 contact | abuts and is latched by the two adjacent steel member side protrusion parts 60.

At this time, as shown in FIG. 49, the edges of the front end surface 50c (edges of the inner surface 50a and the outer surface 50b) of the connection-side protrusion 50 and the inner surface 60a of the steel member-side protrusion 60 abut against the outer surface 60b. , A state in which the connecting-side protruding portion 50 is locked is formed. Alternatively, as shown in FIG. 50, the edges (inner side surface 60a and outer side surface 60b) of the front end surface 60c of the steel member-side protrusion 60 are in contact with the inner side surface 50a and the outer side surface 50b of the connection side protrusion 50 to form a connection. The side protrusion part 50 is locked.

Here, the edges of the inner side surface 50a and the outer side surface 50b of the connection-side protrusion 50 are in contact with the inner side surface 60a and the outer side surface 60b of the steel member-side protrusion 60. The structure includes "pushing" in the opposite direction. The side slopes of the steel members connected to the side slopes. The structure in which the inner side surface 60a and the outer side surface 60b of the steel member-side protrusion 60 abut on the inner side surface 50a and the outer side surface 50b of the connecting side protrusion 50 includes "pushing" on the connecting side facing the present disclosure. Beveled steel component side bevel.

In this way, the pushing angle of each side surface 50a, 50b, 60a, 60b of the connecting side protrusion 50 and the steel member side protrusion 60, the protruding height of the orthogonal direction X of the material axis, and the arrangement pitch of the material axis direction Y It can be arbitrarily set within the range which can form the state in which the connection side protrusion part 50 and the two adjacent steel member side protrusion parts 60 contact | abut and lock.

The other embodiments of the present disclosure also exhibit the same effects as the aforementioned embodiments. The connection-side protrusion 50 of the steel-member-side groove portion 62 disposed between the steel-member-side protrusions 60 is a stopper made of the steel-member-side protrusion 60 disposed in a direction away from the longitudinal connection portion 3. It functions to restrict the detachment in a direction away from the longitudinal connection portion 3.

In addition, the longitudinal connection portions 3 of the plurality of steel sheet piles 2 are used to ensure full initial bending rigidity, so that the longitudinal connection portions 3 of the plurality of steel sheet piles 2 do not become structural weaknesses. This can avoid the lengthening of the construction period caused by on-site welding or high-strength bolt friction welding at the longitudinal connection portions 3 of the plurality of steel sheet piles 2 and can prevent the steel connecting the plurality of steel sheet piles 2 from each other. The bending rigidity of the entire manufacturing member is reduced.

The connection member is used in at least one of a state in which the steel member-side protrusion 60 is fitted in the connection-side groove portion 52 or a state in which the connection-side protrusion 50 is fitted in the steel-member-side groove portion 62. 5moving the fixed member 4. Thereby, a compressive force acts on the connection member 5 from the connection member 5 side to the steel sheet pile 2 side, and the state where the connection side protrusion part 50 is locked by the steel member side protrusion part 60 is formed.

For this reason, when external pressure is applied from the connecting member 5 side to the steel sheet pile 2 side during construction, a compressive force acts in a direction to maintain the locked state of the connecting side protrusion 50, so that the entire steel member can be obtained. Improved bending rigidity.

In addition, the shape of the connection-side protrusion 50 and the shape of the steel member-side protrusion 60 make it easy for the connection-side protrusion 50 to abut two adjacent steel-member-side protrusions 60. For this reason, it is possible to easily form a state in which the connecting-side protruding portion 50 is locked in the material axis direction Y by the two adjacent steel member-side protruding portions 60, and it is possible to suppress the shift when the loads of the positive and negative bending cycles are applied.

Further, a shaft member 41 such as a bolt is used for the fixing member 4 so that the bolt or the like passes through the hole 5a or the like provided in the connecting member 5 and is screwed to the protrusion 60 provided on the side of the steel member that has been threaded. Hole 60d, etc. or nut 43. Thereby, the locked state of the connection-side protruding portion 50 can be maintained, and the connection member 5 can be prevented from falling off.

Next, when the protruding height h1b of the connecting-side protruding portion 50 is slightly the same as the protruding height h1a of the steel-member-side protruding portion 60, the minimum interval width c2a that satisfies the steel-member-side groove portion 62 is equal to or smaller than the protruding width w1b of the connecting-side protruding portion 50. Or, the minimum interval width c2b of the connecting side groove portion 52 is at least one of the relationships below the protruding width w1a of the steel member-side protruding portion 60, so that the connecting-side protruding portion 50 and the steel member-side protruding can be made. The part 60 does abut.

For this reason, it is possible to reliably form a state where the connecting-side protruding portion 50 is locked in the material axis direction Y by the two adjacent steel member-side protruding portions 60, and further, it is possible to suppress deviation when the loads of the positive and negative bending cycles are applied.

In addition, at least one of the inner side surface 50 a of the connection-side protrusion 50 and the outer side surface 60 b of the steel member-side protrusion 60 or the outer side surface 60 a of the connection-side protrusion 50 and the inner side surface 60 a of the steel-member-side protrusion 60 One is slightly parallel. For this purpose, the area where the inner side surface 50a of the adjacent connection side protrusions 50 and the outer surface 60b of the steel member side protrusion 60 can be brought into contact with each other, or the outer side surface 60b of the connection side protrusions 50 adjacent to each other and the steel The contact area of the inner side surface 60a of the member-side protruding portion 60 is increased. Thereby, the stress transmission between the connection-side protruding portion 50 and the steel member-side protruding portion 60 can be facilitated, and further, the deviation during the application of the alternate load of positive and negative bending can be suppressed.

Then, the inner side surface 50 a of the connection-side protrusion 50 and the outer side surface 60 b of the steel member-side protrusion 60 and the outer side surface 50 b of the connection-side protrusion 50 are slightly parallel to the inner side surface 60 a of the steel-member-side protrusion 60. For this reason, the volume of the space | interval part between the connection side protrusion part 50 and the steel member side protrusion part 60 is reduced. Thereby, the contact area of the connection side protrusion part 50 and the steel member side protrusion part 60 becomes large, and load transmission becomes easy.

In addition, other embodiments to which the longitudinal connection structure 1 of the steel member disclosed in this disclosure is applied are the same as the above-mentioned ones. If necessary, as shown in FIG. 11 to FIG. 13, the connection side may be processed by hot extrusion. Corner portions C of the protrusions 50 and the steel member-side protrusions 60 are chamfered. Furthermore, by applying the longitudinal connection structure 1 of the steel member disclosed herein, the hot-pressing processing of the corner portion C of the connection-side protrusion 50 and the steel-member-side protrusion 60 can be easily performed, thereby improving the connection-side protrusion. Workability of 50 and steel member-side protrusions 60.

For example, other embodiments of the longitudinal connection structure 1 of the steel member to which the present disclosure is applied are the same as those described above, and are used by a plurality of steel members having a predetermined cross-sectional shape in the material axis direction Y.

The steel sheet pile 2 such as a hat-shaped steel sheet pile 21 having a slightly hat-shaped cross section as shown in FIGS. 3 to 5 is used as the steel member, but it is not limited thereto. For example, an H-shaped steel 24 having a slightly H-shaped cross section as shown in FIG. 32, an angular steel pipe 25 having a slightly rectangular cross-section as shown in FIG. 33, or a round shape with a slightly circular cross-section as shown in FIG. 34 may be used. The steel pipe 26 is a steel member and is connected in the material axis direction Y.

Further, as shown in FIG. 6, in addition to erecting a connecting member 5 for the end portion 30 of the steel sheet pile 2, for example, as shown in FIG. 35, the end portion 30 of the steel sheet pile 2 may be clamped in the direction X of the material axis orthogonality. Two connection members 5 are erected in a state, and the locations and number of the connection members 5 are arbitrary.

The fixing member 4 may be a hole 5a provided in the connecting member 5 and inserted into the hole 30b provided in the steel member-side protrusion 60 or the steel sheet pile 2 as a steel member.

Further, as shown in FIGS. 51 and 52, the inner side surface 60a of the steel member side slope of the steel member-side protruding portion 60 may be formed in a vertical connection structure near the side of the vertical connection portion 3, and the vertical connection portion 3 It is the boundary between two steel sheet piles 2, which are steel members. The connecting member 5 slides in the wall width direction Z along the side surface 31 of the end of the steel sheet pile 2 provided with the steel member-side protruding portion 60, and thus is erected at the longitudinal connection portions 3 of the plurality of steel sheet piles 2.

At this time, the connection-side protrusion portion 50 of the connection member 5 is fitted into the steel-member-side groove portion 62 formed between the plurality of steel-member-side protrusions 60. Further, the steel member-side protruding portion 60 of the steel sheet pile 2 is fitted into a connecting-side groove portion 52 formed between the plurality of connecting-side protruding portions 50.

In the foregoing, examples of implementation forms of the present disclosure have been described in detail, but each of the above-mentioned implementation forms merely shows specific examples when implementing the present disclosure, and the specific examples cannot be used to explain the technology of the present disclosure in a limited manner. Sexual scope. ≪Note≫ From this description, the following other aspects are conceptualized. The longitudinal connection structure of the steel member of the first aspect includes: a steel member side protrusion, which is from a side surface of one end of the steel member connected to the material axis direction and a steel member on the other side The end side protrusion is formed with a side slope of a steel member inclined with respect to the protruding direction, and the side slope of the steel member is formed on at least one of a boundary side of the two steel members and a side away from the boundary; a connecting member And has: a flat plate portion that is disposed across the boundary; and a connecting side protrusion portion that protrudes from the flat plate portion toward the side of the end portion of each steel member, and a connecting side slope is formed on the connecting side protrusion portion. The connection side inclined surface is a steel member side inclined surface facing the steel member side protrusion; and the fixing member is a state where a gap is formed between the flat plate portion and the steel member side protrusion, and the connection is performed. The side slope is pushed against the aforementioned side slope of the steel member. The longitudinal connection structure of the steel member in the second aspect is in the first aspect, wherein a plurality of the steel member-side protrusions are provided on each steel member, and the plurality of the steel member-side protrusions are provided on the foregoing. It is arranged in the direction of the material axis; a stopper is formed by the steel member-side protrusions disposed on the side away from the boundary, and the stopper restricts the disengagement of the connection-side protrusion from the direction away from the boundary. The connection-side protrusions are arranged between the steel member-side protrusions. The longitudinal connection structure of the steel member in the third aspect is in the first or second aspect, and the fixed member allows the connecting member to transmit the load in a direction away from the steel member, and pushes the connecting side inclined surface. Abuts the opposite side slope of the aforementioned steel member. In the fourth aspect, the longitudinal connection structure of the steel member is in the third aspect. The fixed member includes a shaft member that penetrates the connection member and abuts the side protruding portion or the end portion of the steel member. The side surface or the side surface of the end portion of the steel member abuts against the connection member. In the fifth aspect, the longitudinal connection structure of the steel member is in the fourth aspect. The shaft member includes a bolt, and the bolt is screwed into a screw hole. The screw hole penetrates the connecting member or the steel member. The longitudinal connection structure of the steel member in the sixth aspect is in the third to fifth aspects. The fixing member includes a wedge-shaped member sandwiched between the connecting member and the side surface of the end portion. The longitudinal connection structure of the steel member in the seventh aspect is in any one of the first to sixth aspects. The connection member has a plurality of the connection side protrusions, and the plurality of the connection side protrusions. Arranged in the direction of the material axis, a connection-side groove is formed between the adjacent connection-side protrusions, and the steel-member-side protrusions, the connection-side protrusions, and the steel-member-side protrusions are arranged in the connection-side grooves. The projection width w1 of the material axis direction at the front end of the respective protruding direction is configured to be slightly the same as each other, and the total of the base axis of the connecting side protruding portion and the connecting material groove direction is added up. The dimension 1p and the above-mentioned protrusion width w1 satisfy the relationship prescribed by the following formula (1), w1> lp / 2 ... (1). In the eighth aspect, the longitudinal connection structure of the steel member is in the first aspect, the connection-side protrusions have a plurality of the connection-side protrusions, and the plurality of the connection-side protrusions are arranged in the direction of the material axis. And the shape of the flat plate portion side becomes wider toward the material axis direction than the front end side, the steel member side protrusions have a plurality of the steel member side protrusions, and the steel member side protrusions The parts are arranged in the direction of the material axis, and the shape of the side surface side of the end portion of the steel member is larger than the front end side, and the width becomes larger in the material axis direction. The fixing member includes a shaft member. A hole provided in the aforementioned connecting member and inserted through the hole provided in the steel member side protrusion or a steel member, or a hole provided in the aforementioned steel member and inserted through the hole provided in the aforementioned connected member, The fixing member is in a state where the steel member side protrusions are arranged in the connection side grooves between the adjacent connection side protrusions, or between the adjacent steel member side protrusions. Furrow member made of a state where the coupling portion disposed projecting portion of the side of at least one of the one state, the connecting member to the side of the steel member to push against. The longitudinal connection structure of the steel member in the ninth aspect is in the eighth aspect, and the shaft member is a bolt, and the bolt is screwed into a hole or a connecting side of the steel member side protrusion that has been screw-engraved. Alternatively, the holes of the protrusions may be screwed into the nut through the connection member and the steel member. The longitudinal connection structure of the steel member in the tenth aspect is in the eighth or ninth aspect, in which at least one of the following relationships is satisfied, that is, the minimum groove width c2a of the side groove portion of the steel member is the connection side protrusion portion. The relationship between the protrusion width w1b in the material axis direction at the front end or the minimum groove width c2b in the connection side groove portion is the relationship with the protrusion width w1a in the material axis direction at the front end of the steel member side protrusion. The longitudinal connection structure of the steel member of the eleventh aspect is in any one of the first, eighth to tenth aspects, the connection side protrusion and the steel member side protrusion, and the connection side protrusion. The surface of the boundary side of the part and the surface of the steel member-side protrusion that is away from the boundary, or the surface of the connection side protrusion that is away from the boundary and the boundary of the steel member-side protrusion At least one of the side faces is slightly parallel. The longitudinal connection structure of the steel member of the twelfth aspect is in any one of the first to eleventh aspects, and the connection-side protruding portion and the steel member-side protruding portion are corner portions on the front end side in the protruding direction. Beveled shape. <Other Aspects> Furthermore, the following other aspects can be conceptualized from this specification. The first aspect of the longitudinal connection structure of the steel member is a plurality of steel members connected to a predetermined cross-sectional shape in the direction of the material axis. The longitudinal connection structure of the steel member includes: a connecting member, which is erected in the longitudinal connection. The longitudinal connecting portion connects the ends of each steel member in the direction of the material axis to each other; the fixed member moves the aforementioned connecting member to the direction orthogonal to the material axis; and the projection portion of the base material side is connected to each A steel member has a side surface protruding toward the connecting member and perpendicular to the material axis; the connecting member has a flat plate portion continuously formed in the material axis direction across the longitudinal connecting portion; and a connecting side protrusion, It protrudes from the flat plate portion to the side surface of the end portion and in a direction orthogonal to the material axis. The connection-side protrusion and the base material-side protrusion are formed on the side of the connection-side protrusion and the side of the base-material protrusion. It is a cone shape inclined to the orthogonal direction of the material axis. In the second aspect of the longitudinal connection mechanism of the steel member, in the first aspect, the material of the connection-side protrusion and the base material-side protrusion, and the direction of the material axis of the connection-side protrusion is close to the inside of the vertical connection. The side surface and the side surface of the base material side protruding portion away from the longitudinal connection portion are formed in a tapered shape inclined toward the direction orthogonal to the material axis, and the fixing member faces in the direction orthogonal to the material axis. The connecting member is moved in a direction away from the side surface of the end portion, so that the inner side surface of the connection-side protrusion and the outer side surface of the base material-side protrusion change from a state away from each other in a material axis direction to a close state. In the third aspect of the longitudinal connection mechanism of the steel member, in the first or second aspect, the fixing member uses a shaft member which penetrates the connection member and abuts on the base material side protrusion or The side surface of the end portion may pass through the end portion of the steel member and abut the connection member. In the fourth aspect, the longitudinal connection mechanism of the steel member, in the third aspect, the shaft member is a bolt, and the bolt is screwed into a screw hole that penetrates the aforementioned connecting member or the steel member. Of the aforementioned ends. In the fifth aspect of the longitudinal connection mechanism of the steel member, in any one of the first to fourth aspects, the fixing member is a wedge-shaped member, which is sandwiched between the connecting member and the side of the end portion. between. In the sixth aspect of the longitudinal connection mechanism of the steel member, in any one of the first to fifth aspects, the connecting member forms a plurality of the connecting side protrusions spaced apart from each other in the direction of the material axis, The base-material-side protrusion is fitted into the coupling-side groove portion, and the coupling-side groove portion is a portion separated by a plurality of the coupling-side protrusions adjacent to each other in the material axis direction. The coupling-side protrusion and the base-material-side protrusion make The protrusion widths w1 of the material axis directions on the front end side of the respective material axis orthogonal directions are formed to be slightly the same as each other, and the total extension length 1p of the material axis directions of the connecting side protrusion portion and the connecting side groove portion is added up. The aforementioned protrusion width w1 satisfies the relationship prescribed by the following formula (1), w1> lp / 2 ･ ･ ･ (1). In a seventh aspect of the longitudinal connection mechanism of the steel member, in the first aspect, the connection-side protrusions form a plurality of the connection-side protrusions spaced apart from each other in the material axis direction, and are the flat portions. The side has a shape that becomes wider in the material axis direction than the front end surface side. The base material side protrusions are spaced apart from each other in the material axis direction to form a plurality of the base material side protrusions. The side surface of the end portion has a shape that becomes wider toward the material axis direction than the front surface side. The fixing member is a shaft member. The shaft member passes through a hole provided in the connection member and is inserted in the base material. The hole of the side protrusion, or the hole provided at the end portion of the steel member, is inserted through the hole provided at the connection side protrusion, and the fixing member is in the orthogonal direction of the material axis and approaches the side surface of the end portion. The connection member is moved in the direction to be at least any of the following states, that is, a state where the base material side protrusion is fitted in the connection side groove portion, and the connection side groove portion is a plurality of the connections adjacent to each other in the material axis direction. side Spaced from the portion, or the side of the coupling projection is fitted into the base material in a state of lateral groove portion, the coupling portion of the lateral groove adjacent to the projecting portion of the member spaced from the axis direction of the side portion of the base material. In the eighth aspect of the longitudinal connection mechanism of the steel member, in the seventh aspect, the shaft member is a bolt, and the bolt is screwed into a hole which is engraved and provided on the protrusion portion of the base material side, or is provided in The connection-side protruding portion may be screwed into the nut through the connection structure and the end portion of the steel member. In the ninth aspect, the longitudinal connection mechanism of the steel member, in the seventh or eighth aspect, the protrusion height h1b of the connection side protrusion and the base material side protrusion, and the orthogonal direction of the material axis of the connection side protrusion. When the projection height is slightly equal to the orthogonal direction of the material axis of the base material side protrusion, at least one of the following relationships is satisfied, that is, the minimum interval width c2a of the groove portion of the base material is the material axis of the front end face of the connection side protrusion. The relationship is equal to or less than the protrusion width w1b in the direction, or the minimum interval width c2b of the connection side groove is equal to or less than the protrusion width w1a in the material axis direction of the front end face of the base material side protrusion. In the tenth aspect of the longitudinal connection mechanism of the steel member, in any one of the first, seventh, and ninth aspects, the connection-side protrusion and the base material-side protrusion, wherein the connection-side protrusion The direction of the material axis in the direction of the material axis is close to the outside of the longitudinal connection portion in the direction of the material axis of the longitudinal connection portion and the base material side protrusion, or the direction of the material axis of the connection side protrusion is separated from the longitudinal direction. At least any one of the outer surface of the connection portion and the inner surface of the longitudinal connection portion in the material axis direction of the base material-side protruding portion is slightly parallel. The longitudinal connection structure of the steel member of the eleventh aspect is in any one of the first to tenth aspects, and the connection-side protrusion and the base material-side protrusion are in front of the orthogonal directions of the respective material axes. The shape of the end face and the corner portion of the inner side surface or outer side surface of the material axis direction is chamfered. Among these other aspects, the following effects are exhibited. According to the first aspect to the eleventh aspect, since the longitudinal connection portions of the plurality of steel sheet piles and the like can ensure full initial bending rigidity, the longitudinal connection portions of the plurality of steel sheet piles and the like do not become structural weaknesses. The longitudinal connection parts of steel sheet piles can avoid the prolongation of the construction period caused by on-site welding or the frictional welding of strong bolts, and can avoid the reduction of the bending rigidity of the connected steel members as a whole. According to the second to sixth aspects and the eleventh aspect, a gap is formed to separate the connecting-side protruding portion from the base material-side protruding portion, so that the fitting operation of the connecting-side protruding portion and the base-material-side protruding portion can be smoothly performed. This makes it possible to easily and quickly perform the operation of connecting a plurality of steel sheet piles in the direction of the material axis. According to the second aspect to the sixth aspect, and the eleventh aspect, the tension can be transmitted immediately after the connection side protrusion and the base material side protrusion are fitted, or at an earlier stage, so that one side can be transmitted. The fitting operation of the connecting side protrusion and the base material side protrusion is smoothly performed, and a plurality of steel sheet piles and the like are firmly connected in the direction of the material axis, thereby ensuring an initial stage that is as close as the body of the steel sheet piles and the like. Its bending rigidity. In particular, according to the third aspect, the fourth aspect, and the eleventh aspect, when a shaft member such as a bolt is used as a fixing member, the front end of the bolt and the like screwed into the screw hole is abutted against the base material side protrusion. It is possible to prevent the connection-side protruding portion and the base material-side protruding portion from sliding from the fitted state, and to prevent the connection member from falling off. In particular, according to the fifth aspect and the eleventh aspect, when the wedge-shaped member sandwiched and driven between the connecting member and the side surface of the steel sheet pile is used as a fixed member, the connecting member can be orthogonal to the material axis. It moves in the direction. Therefore, it is not necessary to perform a hole-cutting operation on a screw hole of a connecting member, a screwing operation such as a bolt, and the like, and a structure for moving the connecting member can be easily realized. In particular, according to the sixth aspect and the eleventh aspect, in which the connecting side protrusions and the base material side protrusions form the same shape and size with each other, and the front end side has a wide single-sided cone shape or a double-sided cone shape, add The total extension length lp and projection width w1 of the material-axis direction of the total connection-side protrusions and the connection-side grooves satisfy the relationship specified by the above formula (1), thereby reliably preventing the connection-side protrusions and the base material-side protrusions. The part is detached from the fitting state in the direction orthogonal to the timber axis. In particular, according to the seventh aspect to the eleventh aspect, the fixing member that moves the connecting member is used to fit the base material-side protruding portion into the connecting side groove portion, or the connecting side protruding portion is fitted to the base material. At least one of the states of the side groove portion. For this reason, a compressive force acts on the connection member from the connection member side toward the steel member side, and a state in which the connection side projection is locked by the base material side projection is formed. Accordingly, when external pressure is applied from the connecting member side to the steel member side during construction, a compressive force acts in a direction to maintain the locked state of the protruding portion on the connecting side, so that bending of the entire connected steel member can be achieved. Increased rigidity. In particular, according to the seventh aspect to the eleventh aspect, the shape of the connection-side protrusion and the shape of the base material-side protrusion can make the connection-side protrusion and the adjacent two base-material-side protrusions easily contact. For this reason, it is easy to form a state in which the connection-side protrusion is locked in the direction of the material axis by the two adjacent base material-side protrusions, and it is possible to suppress the shift when the loads of the positive and negative bending are applied in turn. In particular, according to the eighth aspect to the eleventh aspect, the shaft members using bolts and the like are used in the fixing member, so that the bolts and the like penetrate through the holes provided in the connecting member, and are screwed into the engraved and provided on the base material. Holes in side protrusions or nuts. For this reason, the locked state of the connection-side protrusion can be maintained, and the connection member can be prevented from falling off. In particular, according to the ninth aspect to the eleventh aspect, when the protruding height h1b of the connecting side protrusion is slightly equal to the protruding height h1a of the base material side protrusion, the minimum distance c2a that satisfies the base material side groove is the connecting side protrusion. The relationship between the protrusion width w1b or less, or the minimum interval width c2b of the connection side groove portion is at least one of the relationships below the protrusion width w1a of the base material side protrusion portion, so that the connection side protrusion portion and the adjacent two female portions The material-side protrusions do contact. For this reason, the state in which the connection-side protrusion is locked in the direction of the material axis by the two adjacent parent-material-side protrusions is reliably formed, which can further suppress the shift when the load of the positive and negative bending is applied in turn. In particular, according to the tenth aspect and the eleventh aspect, at least the inner side surface of the connection side protrusion and the outer side surface of the base material side protrusion, or at least the outer side surface of the connection side protrusion and the inner side surface of the base material side protrusion. Either is slightly parallel. For this reason, the contact area between the inner side surface of the adjacent connection side protrusions and the outer side of the base material side protrusion can be enlarged, or the outer side surface of the adjacent connection side protrusions and the inner side surface of the base material side protrusion can be enlarged. Contact area. Thereby, the stress transmission between the connection-side protruding portion and the base material-side protruding portion can be facilitated, and the shift at the time of cyclic loading of positive and negative bending can be further suppressed. In particular, according to the tenth aspect and the eleventh aspect, the inner side surface of the connecting side protrusion and the outer side surface of the base material side protrusion, and the outer side surface of the connecting side protrusion and the inner side surface of the base material side protrusion are slightly different. Parallel, it is possible to reduce the volume of the space between the connection-side protrusion and the base material-side protrusion. Thereby, the contact area of the connection side protrusion and the base material side protrusion becomes large, and stress transmission becomes easy. In particular, according to the eleventh aspect, the corner portions of the connection-side protrusion and the base material-side protrusion are chamfered, so that the corner extrusion of the connection-side protrusion and the base material-side protrusion is hot-pressed. Since it becomes easy, the workability of a connection side protrusion and a base material side protrusion can be improved. Then, the disclosure of Japanese Invention Patent Application No. 2016-156002 filed on August 8, 2016, the entire system of which is incorporated into the present invention by reference. In addition, the disclosure of Japanese Invention Patent Application No. 2017-027817 filed on February 17, 2017, the entire system is incorporated into this specification by reference. In addition, all documents, invention patent applications, and technical specifications that should be described in this specification are referred to the same extent as each document, invention patent application, and technical specification is incorporated by reference in the form specifically and individually recorded. Incorporated into this manual.

The description of the symbols is described below.

1‧‧‧Vertical connection structure of steel sheet pile
2‧‧‧ steel sheet pile
2a‧‧‧wing board
2b‧‧‧ Web
2c‧‧‧arm
2d‧‧‧Joint Department
21‧‧‧ hat-shaped steel sheet pile
22‧‧‧U-shaped steel sheet pile
23‧‧‧Z type steel sheet pile
24‧‧‧H Beam
25‧‧‧Angle Steel Pipe
26‧‧‧ round steel pipe
3‧‧‧ longitudinal connection
30‧‧‧ end
30a‧‧‧face
30b‧‧‧hole at the end
31‧‧‧End side
4‧‧‧Fixed components
40‧‧‧screw holes
41‧‧‧ Shaft member
41a‧‧‧Front end
42‧‧‧Wedge member
42a‧‧‧ Advance Department
43‧‧‧nut
44‧‧‧Temporary storage materials
5‧‧‧ connecting member
5a‧‧‧hole in the connecting member
50‧‧‧ connecting side protrusion
50a‧‧‧ inside surface of the connecting side protrusion
50b‧‧‧Outer side of connecting side protrusion
50c‧‧‧Front end face of connecting side protrusion
50d‧‧‧A hole provided on the connecting side protrusion
51‧‧‧ Flat Department
51a‧‧‧ Upper Board
51b‧‧‧ Lower plate
52‧‧‧ side groove
6‧‧‧ plate member
60‧‧‧Steel member side protrusion
60a‧‧‧ Inside surface of steel member side protrusion
60b‧‧‧ Outer side of steel member side protrusion
60c‧‧‧Front end face of steel member side protrusion
60d‧‧‧A hole provided on a side protrusion of a steel member
62‧‧‧Side groove section of steel member
7‧‧‧ steel wall
70‧‧‧ Connected steel components
In the site of 8‧‧‧
X‧‧‧ wood axis orthogonal direction
Y‧‧‧ material axis direction
Z‧‧‧Wall width direction

FIG. 1 is a perspective view showing a steel wall using a longitudinal connection structure of a steel member applicable to the present disclosure. FIG. 2 is a perspective view showing a longitudinal connection structure of a steel member to which the present disclosure is applied. FIG. 3 is a plan view showing a state in which a longitudinal connection structure of a steel member to which the present disclosure is applied, and a wing plate of a cap-shaped steel sheet pile is connected using only a connection member. FIG. 4 is a plan view showing a state in which a U-shaped steel sheet pile is connected to a longitudinal connection structure of a steel member to which the present disclosure is applied. FIG. 5 is a plan view showing a state in which a longitudinal connection structure of a steel member to which the present disclosure is applied is connected to a Z-shaped steel sheet pile. FIG. 6 is a plan view showing a longitudinal connection structure of a steel member to which the present disclosure is applied, and a state where wings and arms of a cap-shaped steel sheet pile are connected. FIG. 7 is a front view showing a connecting member to which a longitudinal connection structure of a steel member of the present disclosure is applied. FIG. 8 is a rear view showing a connecting member to which a longitudinal connecting structure of a steel member of the present disclosure is applied. FIG. 9 is a side view showing a longitudinal connection structure of a steel member to which the embodiment of the present disclosure is applied, and a longitudinal connection portion of a steel sheet pile. FIG. 10 is a side view showing a modified example of a longitudinal connection structure of a steel member to which the present disclosure is applied. FIG. 11 is an enlarged view showing a part of FIG. 9. FIG. 12 is a partial side view showing a modified example of the connection structure of the two side tapered connection side protrusions and the steel member side protrusions of the longitudinal connection structure of the steel member to which the present disclosure is applied. FIG. 13 is a partial side view showing a modified example of a longitudinal connection structure of a steel member to which the present disclosure is applied, and both side surfaces are formed into slightly parallel two-sided tapered connection-side protrusions and modification examples of the steel member-side protrusions. FIG. 14 is a side view showing an embodiment of a state before the longitudinal connection structure of the steel member to which the present disclosure is applied, the state before the connecting member is moved through the shaft member of the flat plate portion of the connecting member. FIG. 15 is a side view showing an embodiment of a state in which a longitudinal connection structure of a steel member to which the present disclosure is applied is moved by a shaft member penetrating a flat plate portion of the connection member to move the connection member. FIG. 16 is a side view showing a longitudinal connection structure of a steel member to which the present disclosure is applied, and a modified example of a shaft member that penetrates a connecting-side protrusion of a connecting member and abuts on a side surface of an end portion of a steel sheet pile. FIG. 17 is a side view showing a longitudinal connection structure of a steel member to which the present disclosure is applied, and a modified example of a shaft member, the shaft member being connected to a protruding portion of a connecting side penetrating the connecting member and abutting on a side surface provided at an end portion of a steel sheet pile Plate-shaped member. FIG. 18 is a side view showing a longitudinal connection structure of a steel member to which the present disclosure is applied, and a modified example of a shaft member, the shaft member only passing through the end of a steel sheet pile. FIG. 19 is a side view showing a longitudinal connection structure of a steel member to which the present disclosure is applied, and a modified example of a shaft member that penetrates an end portion of a steel sheet pile and a plate-like member. FIG. 20 is a side view showing a modified example of a longitudinal connection structure of a steel member to which the present disclosure is applied, and a wedge-shaped member in a state before moving the connection member, the wedge-shaped member being sandwiched between the connection member and an end surface of a steel sheet pile. FIG. 21 is a side view showing a modified example of a longitudinal connection structure of a steel member to which the present disclosure is applied, and a state in which a connecting member is moved by a wedge-shaped member, which is sandwiched between the connecting member and an end surface of a steel sheet pile . FIG. 22 is an enlarged view showing a part of FIG. 14. FIG. 23 is an enlarged view showing a part of FIG. 15. FIG. 24 is a partial side view showing a state before the movement of the connecting member corresponding to FIG. 13. FIG. 25 is a partial side view showing a state after the connecting member corresponding to FIG. 13 is moved. Fig. 26 is a partial side view showing a state before the movement of the connecting member corresponding to Fig. 12. FIG. 27 is a partial side view showing a state in which the inner side surface of the connection-side protruding portion and the outer side surface of the steel-member-side protruding portion are close to each other until the connecting member is moved corresponding to FIG. 12. Fig. 28 is a partial side view showing a state before the movement of the connecting member corresponding to Fig. 12; FIG. 29 is a partial side view showing a state in which the inner side surface of the connection-side protrusion is close to the outer side surface of the steel-member-side protrusion in accordance with the movement of the connecting member in FIG. 12, but does not abut. FIG. 30 is a side view showing a longitudinal connection structure of a steel member to which the present disclosure is applied and a compressive force caused by a bending load. FIG. 31 is a side view showing a longitudinal connection structure of a steel member to which the present disclosure is applied, and a tensile force caused by a bending load. FIG. 32 is a plan view showing an example of a longitudinal connection structure of a steel member to which the present disclosure is applied, using an H-shaped steel as the steel member. FIG. 33 is a plan view showing an example of a longitudinal connection structure of a steel member to which the present disclosure is applied, using an angle-shaped steel pipe as the steel member. FIG. 34 is a plan view showing an example of a longitudinal connection structure of a steel member to which the present disclosure is applied, and a round steel pipe is used as the steel member. FIG. 35 is a plan view showing a modified example in which a longitudinal connection structure of a steel member to which the present disclosure is applied is configured to be held by sandwiching the ends of a steel sheet pile from both sides in the thickness direction. FIG. 36 is a perspective view showing a longitudinal connection structure of a steel member to which another embodiment of the present disclosure is applied, and a state before a longitudinal connection portion of a steel sheet pile is longitudinally connected. FIG. 37 is a perspective view showing a longitudinal connection structure of a steel member to which another embodiment of the present disclosure is applied, and a state in which a longitudinal connection portion of a steel sheet pile is longitudinally connected. FIG. 38 is a perspective view showing a modification of another embodiment of a longitudinal connection structure of a steel member to which the present disclosure is applied. FIG. 39 is a partial side view showing another embodiment of a longitudinal connection structure of a steel member to which the present disclosure is applied, which is formed as a two-sided tapered connection-side protrusion and a steel member-side protrusion. FIG. 40 is a side view showing a modified example of a longitudinal connection structure of a steel member to which another embodiment of the present disclosure is applied. FIG. 41 is a side view showing a modified example of a longitudinal connection structure of a steel member to which the present disclosure is applied, and a shaft member inserted through a hole provided in a protruding portion on a connection side. Fig. 42 is a side view showing a modified example of a state in which a shaft member inserted into a hole provided in a connecting member penetrates a hole provided in an end portion of a steel sheet pile and is screwed into a nut. FIG. 43 is a perspective view showing a modified example of a state before the connection member is fixed by temporarily accommodating the another embodiment of the longitudinal connection structure of the steel member to which the present disclosure is applied. FIG. 44 is a perspective view showing a modified example of a state in which a connecting member is fixed by temporarily accommodating a longitudinal connection structure of another steel member to which the present disclosure is applied. FIG. 45 is a partial side view showing a state before the movement of the connecting member corresponding to FIG. 39. FIG. FIG. 46 is a partial side view showing a state after the connecting member corresponding to FIG. 39 is moved. FIG. 47 is a side view showing another embodiment of a longitudinal connection structure of a steel member to which the present disclosure is applied, in which the protruding height of the connection-side protrusion is formed to be slightly equal to the protrusion height of the steel member-side protrusion. FIG. 48 is a partial side view showing a state after the connecting member corresponding to FIG. 47 is moved. FIG. 49 shows a modified example of another embodiment of the longitudinal connection structure of the steel member to which the present disclosure is applied, in which the edge edge of the front end face of the connection side protrusion and the side face of the steel member side protrusion are in contact with each other. Partial side view. FIG. 50 is a diagram showing a modification example of another embodiment in which the longitudinal connection structure of a steel member to which the present disclosure is applied, in which the edge edge of the front end face of the steel member side protrusion and the side face of the connection side protrusion are in contact with each other. Partial side view. FIG. 51 shows a modified example of another embodiment of a longitudinal connection structure of a steel member to which the present disclosure is applied. A steel member-side protrusion is formed by a longitudinal connection member longitudinally connected to a side closer to a boundary between two steel members. A side view of the longitudinal connection portion of the steel sheet pile is a view showing a state before the connection member is moved by the shaft member penetrating the flat plate portion of the connection member. FIG. 52 is a side view showing a state where the connecting member is moved by the shaft member penetrating the flat plate portion of the connecting member of FIG. 51.

1‧‧‧Vertical connection structure of steel sheet pile

2‧‧‧ steel sheet pile

2a‧‧‧wing board

2b‧‧‧ Web

2c‧‧‧arm

21‧‧‧ hat-shaped steel sheet pile

3‧‧‧ longitudinal connection

30‧‧‧ end

31‧‧‧End side

4‧‧‧Fixed components

41‧‧‧ Shaft member

5‧‧‧ connecting member

50‧‧‧ connecting side protrusion

60‧‧‧Steel member side protrusion

S‧‧‧Ditch

Claims (13)

A longitudinal connection structure of a steel member includes: a steel member side protrusion, which protrudes from an end side surface of one of the steel members connected in the material axis direction and an end side surface of the other steel member Wherein, the steel member-side protruding portion is formed with a steel member-side inclined surface inclined with respect to the protruding direction, and the steel member-side inclined surface is formed on at least one of a boundary side of the two steel members and a side away from the boundary; The connecting member includes: a flat plate portion arranged across the boundary; and a connecting side protruding portion protruding from the flat plate portion toward a side surface of an end portion of each steel member, and a connecting side is formed in the connecting side protruding portion. An inclined surface, the connecting side inclined surface is a steel member side inclined surface facing the steel member side protrusion; and a fixed member is in a state where a gap is formed between the flat plate portion and the steel member side protrusion, The aforementioned connection-side inclined surface is pushed against the oppositely-mentioned steel member-side inclined surface. For example, the longitudinal connection structure of the steel members of claim 1, wherein a plurality of the steel member-side protrusions are provided on each steel member, and the plurality of the steel member-side protrusions are arranged in the direction of the material axis so that The steel member-side protrusion disposed on a side away from the boundary constitutes a stopper that restricts the separation of the connection-side protrusion from a direction away from the boundary, and the connection-side protrusion is disposed on Between each steel member side protrusion. For example, the longitudinal connection structure of the steel members of claim 1 or 2, wherein the aforementioned fixed members allow the aforementioned connecting members to pass the load in a direction away from the aforementioned steel members, and push the aforementioned inclined sides of the joints against the opposing steel. Manufacturing member side slope. The longitudinal connection structure of the steel member according to claim 3, wherein the fixing member includes a shaft member that penetrates the connection member and abuts the side protruding portion of the steel member or the side surface of the end portion, or passes through the foregoing The side surface of the end portion of the steel member abuts the connection member. According to the longitudinal connection structure of the steel member of claim 4, wherein the shaft member includes a bolt, the bolt is screwed into a screw hole, and the screw hole penetrates the connection member or the steel member. The longitudinal connection structure of the steel member according to claim 3, wherein the fixing member includes a wedge-shaped member sandwiched between the connecting member and the side surface of the end portion. The longitudinal connection structure of the steel member of 2, 4 or 5, wherein the connection member has a plurality of the connection side protrusions, and the plurality of the connection side protrusions are arranged in the direction of the material axis, and are adjacent to the connection side. A connection-side groove is formed between the protrusions, and the steel-member-side protrusion is arranged in the connection-side groove. The connection-side protrusion and the steel-member-side protrusion are formed so that each of the protrusions extends in the direction of the material axis. The protrusion width w1 is configured to have dimensions that are slightly the same as each other, and the total dimension 1p of the base-axis side of the coupling-side protrusion portion and the coupling-side groove portion in the material axis direction and the protrusion width w1 satisfy the following formula (1) The prescribed relationship is w1> lp / 2 ... (1). For example, the longitudinal connection structure of the steel member of claim 1, wherein the connection-side protrusions have a plurality of the connection-side protrusions, the plurality of the connection-side protrusions are arranged in the direction of the material axis, and the connection-side protrusions The portion has a shape in which the width of the flat plate portion side becomes larger toward the material axis direction than the front end side. The steel member side protrusion portion has a plurality of the steel member side protrusion portions, and the plurality of steel member side protrusion portions. It is arranged in the direction of the axis of the material, and the protrusions on the side of the steel member have a shape in which the width of the side surface of the end portion of the steel member becomes wider toward the direction of the axis of the material than the front end side, and the fixing member includes a shaft member The shaft member is penetrated through the hole provided in the aforementioned connecting member, and is inserted into the hole provided on the steel member side protrusion or the steel member, or is penetrated through the hole provided in the aforementioned steel member, and inserted into the hole. In the hole of the connection member, the fixing member is in a state where the steel member-side protrusion is arranged in the connection-side groove portion between the adjacent connection-side protrusions, or In the state where at least one of the states where the connection side protrusions are arranged between the steel member side grooves between the steel member side protrusions, the connection member is pushed toward the steel member side. If the longitudinal connection structure of the steel member of claim 8, wherein the shaft member is a bolt, the bolt is screwed into the hole of the steel member side protrusion or the connection side protrusion that is engraved, or, The nut is threaded through the connecting member and the steel member. If the longitudinal connection structure of the steel member of claim 8 or 9 meets at least one of the following relationships, that is, the minimum groove width c2a of the side groove portion of the steel member is the direction of the material axis of the front end of the connection side protrusion portion. The relationship of the protrusion width w1b or less, or the minimum groove width c2b of the connection side groove portion is a relationship of the protrusion width w1a in the material axis direction at the front end of the steel member side protrusion portion. The longitudinal connection structure of the steel member of 8 or 9, wherein the connection-side protrusion and the steel member-side protrusion are separated from the boundary between the surface on the boundary side of the connection-side protrusion and the steel-member-side projection. Or, at least one of the surface of the connection-side protruding portion that is away from the boundary and the surface of the boundary side of the steel member-side protruding portion is slightly parallel. The longitudinal connection structure of the steel member according to claim 10, wherein the connection-side protrusion and the steel member-side protrusion separate the surface of the boundary side of the connection-side protrusion from the steel member-side protrusion. At least one of the surface on the side of the boundary, or the surface on the connecting side protrusion that is away from the boundary, and the surface on the side of the boundary on the steel member side protrusion are slightly parallel. The longitudinal connection structure of the steel members of 2, 4, 5, 6, 8 or 9 wherein the connection-side protrusions and the steel member-side protrusions are chamfered at the corners on the front end side in the protruding direction.