WO2018030361A1 - 鋼製部材の縦継構造 - Google Patents
鋼製部材の縦継構造 Download PDFInfo
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- WO2018030361A1 WO2018030361A1 PCT/JP2017/028651 JP2017028651W WO2018030361A1 WO 2018030361 A1 WO2018030361 A1 WO 2018030361A1 JP 2017028651 W JP2017028651 W JP 2017028651W WO 2018030361 A1 WO2018030361 A1 WO 2018030361A1
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- Prior art keywords
- steel
- connection
- steel member
- protrusion
- side protrusion
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 687
- 239000010959 steel Substances 0.000 title claims abstract description 687
- 239000000463 material Substances 0.000 claims abstract description 222
- 238000010276 construction Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 24
- 230000004048 modification Effects 0.000 description 23
- 238000012986 modification Methods 0.000 description 23
- 238000000926 separation method Methods 0.000 description 16
- 238000003466 welding Methods 0.000 description 10
- 238000001192 hot extrusion Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009499 grossing Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000011065 in-situ storage Methods 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/16—Auxiliary devices rigidly or detachably arranged on sheet piles for facilitating assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/40—Miscellaneous comprising stabilising elements
Definitions
- the present disclosure relates to a cascade structure of steel members that connect steel members in the axial direction.
- the steel sheet piles are generally welded together on site.
- the welding amount increases as the cross-sectional area of the steel sheet pile increases, and the welding time becomes longer.
- the construction period tends to be prolonged.
- Patent Document 1 Japanese Patent Application Publication No. 2011-38288
- the joint structure of steel sheet piles disclosed in Patent Document 1 connects steel sheet piles having a bent cross section up and down.
- a lower joint member protruding from the surface of the steel sheet pile web and flange is provided at the upper end of the lower steel sheet pile.
- An upper joint member that protrudes from the surfaces of the web and the flange is provided at the lower end of the upper steel sheet pile.
- the lower joint member and the upper joint member are fixed by the fixing means in a state where the upper end edge of the lower steel sheet pile and the lower end edge of the upper steel sheet pile are in contact with each other.
- the present disclosure has been devised in view of the above-described problems, and the object of the present disclosure is to facilitate the work of connecting steel members in the material axis direction, and to have sufficient initial rigidity and yield strength. It is providing the cascade structure of the steel member which can ensure.
- the steel member cascade structure that solves the above problems is a steel member side protrusion that protrudes from the end side surface of one steel member and the end side surface of the other steel member that are connected in the axial direction.
- the steel member-side slope inclined with respect to the protruding direction straddles the steel member-side projection formed on at least one of the boundary side and the side away from the boundary of both steel members;
- a connecting-side inclined surface having a flat plate portion to be arranged and a connecting-side protruding portion protruding from the flat plate portion toward the end side surface of each steel member and facing the steel member-side inclined surface of the steel member-side protruding portion. Is pushed to the steel member side slope facing the connection side slope in a state where a gap is formed between the connection member formed on the connection side projection, and the flat plate portion and the steel member side projection. And a fixing member to be hit.
- the work of connecting the steel members in the material axis direction can be facilitated, and sufficient initial rigidity and proof stress can be secured.
- FIG. 10 is an enlarged view showing a part of FIG. 9.
- FIG. 1 It is a side view of an embodiment which shows a state after moving a connecting member with a shaft member which penetrates a flat plate part of a connecting member in a cascade structure of steel members to which the present disclosure is applied.
- the side surface of the modification which shows the shaft member which contacts the plate-shaped member provided in the edge part side surface of the steel sheet pile through the connection side protrusion part of a connection member by the cascade structure of the steel member to which this indication is applied.
- connection side protrusion part was moved, and the inner side surface of the connection side protrusion part and the outer surface of the steel member side protrusion part contact
- It is a partial side view which shows the state before the movement of the connection member corresponding to FIG.
- It is a partial side view which shows the state which moved the connection member corresponding to FIG. 12, and approached the inner surface of the connection side protrusion part, and the outer surface of the steel member side protrusion part, without contact
- compressive force which acts resulting from a bending load in the cascade structure of the steel member to which this indication is applied.
- FIG. 7 is a modification of another embodiment of the steel member cascade structure to which the present disclosure is applied, and is a partial side view illustrating a case where the edge of the distal end surface of the connection-side protrusion portion contacts the side surface of the steel member-side protrusion portion FIG.
- the steel member side protrusions are cascaded in a cascade structure formed on the side closer to the boundary between both steel members. It is a side view which shows the cascade part of a steel sheet pile, and is a figure which shows the state before moving a connection member with the shaft member which penetrates the flat plate part of a connection member. It is a side view which shows the state after moving a connection member with the shaft member which penetrates the flat plate part of the connection member of FIG.
- this steel member cascade structure 1 is, for example, a short steel sheet pile embedded below and above the ground 8 in a narrow site where a long steel sheet pile 2 cannot be constructed. 2 are used as a plurality of steel members to be connected to each other in the material axial direction Y.
- the steel member cascade structure 1 connects a steel member such as a plurality of steel sheet piles 2 in the material axis direction Y to form a long connected steel member 70. Further, the steel member cascade structure 1 includes a plurality of steel members connected in the material axis direction Y as one connection steel member 70, and the plurality of connection steel members 70 connected in the wall width direction Z.
- the steel wall 7 is constructed.
- the steel member cascade structure 1 mainly uses a steel sheet pile 2 such as a hat-shaped steel sheet pile 21 as each steel member. Further, the steel member cascade structure 1 is configured such that the end portions 30 in the material axis direction Y of the plurality of steel sheet piles 2 are opposed to the material axis direction Y, and the ends in the material axis direction Y of the respective steel sheet piles 2.
- a longitudinal joint 3 is formed by connecting the portions 30 to each other.
- the longitudinally connected portion 3 constitutes a boundary between the longitudinally connected steel sheet pile 2 and the other steel sheet pile 2.
- the steel member cascade structure 1 is a fixed member using a connecting member 5 installed in a longitudinally connected portion 3 in the material axis direction Y of a plurality of steel sheet piles 2, a shaft member 41 attached to the connecting member 5, and the like. 4 and a steel member-side protrusion 60 provided at the end 30 of each steel sheet pile 2.
- the steel sheet pile 2 When the hat-shaped steel sheet pile 21 is used, the steel sheet pile 2 has a flange portion 2a, a pair of web portions 2b, a pair of arm portions 2c, and a pair of joint portions 2d as shown in FIG. .
- 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 the flange portion 2a, and from each end of the flange portion 2a in the wall width direction Z, each web portion 2b is formed to be inclined, A groove S is formed.
- each arm part 2c is formed from one end of each web part 2b, and each joint part 2d is formed in the front-end
- the steel sheet pile 2 has substantially flat end portions at the end portions 30 in the material axial direction Y connected to each other by forming the side surfaces of the flange portion 2a, the web portion 2b, and the arm portion 2c in a substantially flat shape. A side surface 31 is formed.
- the steel sheet pile 2 not only the hat-shaped steel sheet pile 21 but also a U-shaped steel sheet pile 22 or a Z-shaped steel sheet pile 23 may be used as shown in the modified examples of FIGS. 4 and 5. .
- the steel sheet pile 2 has a flange portion 2a, a pair of web portions 2b, and a pair of joint portions 2d.
- the side surface of the web portion 2b is an end side surface 31 formed in a substantially flat shape at the end portion 30 in the material axis direction Y.
- the steel sheet pile 2 has a web part 2b, a pair of arm parts 2c, and a pair of joint parts 2d.
- the side surfaces of 2b and the arm portion 2c become end side surfaces 31 formed in a substantially flat shape at the end portion 30 in the material axis direction Y.
- the connecting member 5 is installed on the end side surface 31 of the flange portion 2a, but also the connecting member 5 is installed on the end side surface 31 of the web portion 2b or the arm portion 2c. May be.
- the connecting member 5 is installed on the end side surface 31 of the flange portion 2a and the pair of arm portions 2c, as shown in FIG.
- the connecting member 5 includes a flat plate portion 51 using a steel plate and the like, and a connecting side protrusion 50 protruding from the flat plate portion 51 in the material axis orthogonal direction 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 connecting-side protrusion 50 are integrally formed by hot extrusion, hot rolling, cold rolling, or the like.
- 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 by using a thick steel plate as a cutting process or the like. Further, the connecting member 5 is made of flat steel or the like as the connecting side protrusion 50, and the flat plate 51 and the connecting protrusion 50 are joined by welding the flat steel to the side surface of the steel plate used as the flat plate 51. It may be formed integrally.
- the flat plate portion 51 is formed in a substantially rectangular shape or the like, and has a width dimension B of about 50 mm to 400 mm and a height dimension H of about 200 mm to 400 mm. As shown in FIG. 9, the flat plate portion 51 has a thickness t of about 9 mm to 25 mm, and is connected to the steel sheet pile 2 from one end 30 to the other end 30 of the steel sheet pile 2 connected to each other. 3 is formed continuously in the material axis direction Y.
- the flat plate portion 51 has a portion arranged on the one end portion 30 side of the steel sheet pile 2 as an upper plate portion 51a and a portion arranged on the other end portion 30 side of the steel sheet pile 2 as a lower plate portion 51b. At this time, the flat plate portion 51 is formed with one or a plurality of connection-side projections 50 in each of the upper plate portion 51a and the lower plate portion 51b, and one or a plurality of screw holes penetrating in the material axis orthogonal direction X. 40 is formed.
- the connecting-side protruding portion 50 protrudes in the material axis orthogonal direction X from the flat plate portion 51 toward the end side surface 31 of the steel sheet pile 2.
- the connection member 5 is separated from each other in the material axis direction Y to form a plurality of connection side protrusions 50, and a plurality of connection side protrusions 50 adjacent to each other in the material axis direction Y are connected to the separated parts.
- a side groove 52 is formed.
- a plurality of connection-side protrusions 50 are provided on each of the upper plate portion 51a and the lower plate portion 51b.
- the connecting-side protruding portion 50 has a tip end surface 50 c as a tip end surface 50 c of the connecting-side protruding portion 50 in the material axis orthogonal direction X that is the most protruding portion.
- the inner side surface 50a and the outer side surface 50b are formed continuously from the bottom surface of the connecting side groove 52 to the bottom surface of the connecting side groove portion 52.
- connection side protrusion 50 is arranged such that the inner side surface 50a in the material axis direction Y of the connection side protrusion 50 is close to the connecting portion 3 in the material axis direction Y. Further, the outer side surface 50 b in the material axis direction Y of the connection-side protruding portion 50 is arranged on the direction side away from the longitudinal connection portion 3 in the material axis direction Y. And it is formed symmetrically in the vertical direction with the longitudinal joint 3 as a boundary.
- the steel member-side projecting portion 60 protrudes from the end side surface 31 of each steel sheet pile 2 toward the connecting member 5, and one or a plurality of the steel member side projection portions 60 are provided on the end side surface 31 of each steel sheet pile 2.
- the steel member side protrusion 60 is formed.
- a plurality of steel member-side protrusions 60 that are spaced apart from each other in the material axis direction Y are formed in the longitudinal connection portion 3 of the steel sheet pile 2 and a plurality of steel members that are adjacent to each other in the material axis direction Y are formed.
- a steel member side groove 62 is formed in a portion where the side protrusions 60 are separated from each other.
- the steel member-side protrusion 60 is provided on the plate-like member 6 such as a steel plate attached to the end 30 of each steel sheet pile 2 by welding or the like, and the steel member-side protrusion 60. Protrudes from the plate-like member 6 in the material axis orthogonal direction X.
- a plurality of steel member side protrusions 60 extending continuously in the wall width direction Z are integrally formed on the plate-like member 6 by hot extrusion, hot rolling or cold rolling. Further, the steel member side protrusions 60 may be integrally formed on the plate-like member 6 by cutting the thick steel plate by machining or the like. Moreover, the steel member side protrusion part 60 is integrally formed in the plate member 6 by welding and joining the flat steel etc. which become the steel member side protrusion part 60 to the side surface of the steel plate which becomes the plate member 6. May be.
- the steel member side protrusions 60 are not limited to those in which the plate members 6 are attached to the end portions 30 of the respective steel sheet piles 2, but become steel member side protrusions 60 as shown in the modification of FIG.
- the steel member side protrusions 60 may be formed by attaching flat steel or the like to the end portions 30 of each steel sheet pile 2 by direct welding or the like.
- the steel member side protrusion 60 is provided with a flat steel or the like that becomes the steel member side protrusion 60 directly on the end 30 of the steel sheet pile 2, so that the connecting member 5 extends from the end side surface 31 of each steel sheet pile 2. Projecting in the direction X perpendicular to the material axis.
- the steel member-side protrusion 60 has a portion that protrudes most in the material axis orthogonal direction X as a tip surface 60 c of the steel member-side protrusion 60 in the material axis orthogonal direction X.
- An inner side surface 60 a and an outer side surface 60 b that continue to the steel member side groove 62 are formed.
- the steel member side protrusion part 60 is arrange
- the outer side surface 60 b in the material axis direction Y of the steel member-side protruding portion 60 is disposed on the direction side away from the longitudinally connected portion 3 in the material axis direction Y.
- the connecting member 5 is slid in the wall width direction Z along the end side surface 31 of the steel sheet pile 2 provided with the steel member-side protrusion 60, thereby allowing a plurality of steel members to move. It is installed at the longitudinal connection 3 of the sheet pile 2.
- the connection-side protrusion 50 is fitted into the steel-member-side groove 62 in which the plurality of steel-member-side protrusions 60 are separated from each other.
- the steel member side protrusion 60 is fitted into the connection side groove 52 where the plurality of connection side protrusions 50 are separated.
- the steel member-side protruding portion 60 is a material in which the outer side surface 60 b on the side away from the longitudinally connected portion 3 constituting the boundary of the longitudinally steel sheet pile 2 is the protruding direction. It is a steel member side inclined surface inclined with respect to the axis orthogonal direction X. Further, the steel member-side protrusion 60 has an inner side surface 60 a on the side close to the longitudinal connection portion 3 extending in the material axis orthogonal direction X. And the steel member side protrusion part 60 has the inner surface 60a and the front end surface 60c in the steel member side protrusion part 60 substantially orthogonal, and the steel member side protrusion part 60 is made into the single-sided taper shape. .
- connection side protrusion 50 is a connection side slope in which the outer side surface 60b on the side close to the connection point 3 constituting the boundary of the steel sheet pile 2 to be connected is inclined with respect to the material axis orthogonal direction X which is the protruding direction. It faces the outer surface 60b of the steel member side protrusion 60. Further, the steel member side protrusion 60 has an outer side surface 60b on the side away from the joint portion 3 extending in the material axis orthogonal direction X. And the connection side projection part 50 has the outer side surface 50b and the front end surface 50c substantially orthogonal, and the connection side projection part 50 is made into the single-sided taper shape.
- connection side protrusion part 50 and the steel member side protrusion part 60 are the double-sided taper which inclined both the side surfaces 50a, 50b, 60a, 60b of the material axial direction Y, as shown in the modification of FIG.12 and FIG.13. It is good also as a shape.
- connection-side protrusion 50 and the steel member-side protrusion 60 incline the inner surface 50 a and the outer surface 50 b of the connection-side protrusion 50 in different directions, and the steel member-side protrusion 60.
- the outer side surface 60b and the inner side surface 60a are inclined in different directions.
- the connecting-side protruding portion 50 and the steel member-side protruding portion 60 have a distal end surface 50 c of the connecting-side protruding portion 50 wider in the material axis direction Y than the flat plate portion 51 side. . Moreover, the front end surface 60c in the steel member side protrusion 60 is wider in the material axis direction Y than the end side surface 31 side.
- the connecting side protrusion 50 and the steel member side protrusion 60 are formed in a single-sided taper shape or a double-sided taper shape in which the tip side in the material axis orthogonal direction X is wide.
- connection-side protrusion 50 and the steel member-side protrusion 60 are such that the outer side surface 50 b and the inner side surface 50 a of the connection-side protrusion 50 are substantially parallel, and the inner side of the steel member-side protrusion 60 is inner.
- the side surface 60a and the outer surface 60b are substantially parallel.
- the connection side protrusion 50 and the steel member side protrusion 60 do not widen the front end side in the material axis orthogonal direction X, the front end side of the connection side protrusion 50 is tilted to the longitudinal joint 3 side.
- the shape is formed, and such a shape is also included in the double-sided taper shape.
- the connecting side protrusion 50 and the steel member side protrusion 60 have, for example, a protrusion width w1 on the tip side in the material axis orthogonal direction X of about 20 mm to 60 mm, and the material axis orthogonal direction.
- the protrusion height h of X is about 10 mm to 30 mm.
- the connection-side protrusion 50 and the steel member-side protrusion 60 include the protrusion width w1 in the material axis direction Y on the distal end side of the connection-side protrusion 50 and the material axis on the distal end side of the steel member-side protrusion 60.
- the protrusion width w1 in the direction Y is formed substantially the same, and the protrusion height h in the material axis orthogonal direction X is also formed substantially the same.
- connection-side protrusion 50 and the steel member-side protrusion 60 are such that the corner portion C between the distal end surface 50c and the inner surface 50a or the outer surface 50b of the connection-side protrusion 50 is substantially curved or substantially formed by hot extrusion. It is chamfered in a straight line. Each corner portion C may be chamfered by machining. Further, the connection-side protruding portion 50 and the steel member-side protruding portion 60 are substantially the same as the corner portion C between the front end surface 60c and the inner surface 60a or the outer surface 60b of the steel member-side protruding portion 60 by hot extrusion. It is chamfered in a curved shape or a substantially linear shape.
- connection-side protrusion 50 and the steel member-side protrusion 60 have an opening width c1 in the material axis direction Y of about 10 mm to 50 mm on the distal end side of the connection-side groove 52 or the steel member-side groove 62.
- connection-side protrusion 50 and the steel member-side protrusion 60 are formed to have substantially the same shape and dimensions.
- connection side protrusion part 50 and the steel member side protrusion part 60 are formed in the single-sided taper shape or double-sided taper shape which made the front end side of the material axis orthogonal direction X wide as shown in FIG. 11, FIG.
- the connection width w2 on the base end side in the material axis orthogonal direction X is smaller than the protrusion width w1 on the tip side in the material axis orthogonal direction X.
- the separation width c ⁇ b> 2 in the material axis direction Y on the back side of the connection side groove portion 52 or the steel member side groove portion 62 is larger than the opening width c ⁇ b> 1 of the connection side groove portion 52 or the steel member side groove portion 62.
- the connecting member 5 is installed on the longitudinal connection portion 3 of the steel sheet pile 2 by sliding the connecting member 5 along the end side surface 31 of the steel sheet pile 2 in the wall width direction Z. .
- connection-side protrusion 50 and the steel member-side protrusion 60 have a total extension in the material axis direction Y that combines the connection-side protrusion 50 and the connection-side groove 52 when the distal end side in the material axis orthogonal direction X is wide.
- lp and the protrusion width w1 satisfy the relationship defined by the following equation (1).
- the connection side protrusion part 50 and the steel member side protrusion part 60 have the total extension lp and protrusion width w1 of the material axial direction Y which match
- connection side protrusion 50 and the steel member side protrusion 60 have a protrusion width w1 on the tip side in the material axis orthogonal direction X smaller than the separation width c2 of the connection side groove 52 or the steel member side groove 62.
- the connection width w ⁇ b> 2 on the base end side in the material axis orthogonal direction X is made smaller than the opening width c ⁇ b> 1 of the connection side groove 52 or the steel member side groove 62.
- connection-side protrusion 50 and the steel member-side protrusion 60 separate the connection-side protrusion 50 and the steel member-side protrusion 60 from each other before moving by the shaft member 14.
- a gap G is formed.
- 50a and the outer surface 60b of the steel member side protrusion 60 are separated from each other in the material axis direction Y.
- the fixing member 4 moves the connecting member 5 in the material axis orthogonal direction X, and between the flat plate portion 51 of the connecting member 5 and the steel member side protrusion 60, In a state where the gap SP is formed, the inner side surface 50a of the connecting member 5 is pressed against the inner side surface 60a of the opposing steel member side protrusion 60.
- the fixing member 4 is mainly a shaft member 41 that penetrates the connecting member 5 and abuts against the steel member side protrusion 60 or the end side surface 31 of the steel sheet pile 2.
- a bolt that is screwed into a screw hole 40 that is threaded through the connecting member 5 is used.
- a screw, a screw, a driving rod, or the like is used.
- the part 41a is brought into contact with the steel member side protrusion 60 and the like.
- the tip end portion 41 a such as a bolt is brought into contact with the steel member side protrusion portion 60.
- the shaft member 41 has a screw hole 40 formed in the connection side protrusion 50 of the connection member 5, and the steel member side protrusion 60 is provided directly on the end 30 of the steel sheet pile 2.
- the tip 41a such as a bolt may be brought into contact with the end side surface 31 of the steel sheet pile 2.
- the shaft member 41 has a screw-like hole 40 formed in the connection-side protrusion 50 of the connection member 5, and the plate-like member 6 formed integrally with the steel member-side protrusion 60 is made of steel.
- a tip portion 41 a such as a bolt may be brought into contact with the plate-like member 6.
- a shaft member 41 that penetrates the end portion 30 of the steel sheet pile 2 and contacts the connecting member 5 may be used as the fixing member 4.
- the shaft member 41 is a bolt that is screwed into a screw hole 40 that is threaded through the end 30 of the steel sheet pile 2, and as another example, a screw, a screw, or a driving rod is used.
- the tip 41 a such as a bolt is brought into contact with the connecting member 5.
- the shaft member 41 is an end portion of the steel sheet pile 2 at a portion that becomes the steel member-side groove 62.
- a screw hole 40 is formed in 30. Then, a tip 41 a such as a bolt that is screwed into the screw hole 40 is brought into contact with the connection-side protrusion 50 of the connection member 5.
- the tip 41a such as a bolt contacts the steel member side protrusion 60 and the like. Let it be in contact. That is, as shown in FIG. 15, a bolt or the like screwed into the screw hole 40 of the connecting member 5 is screwed into the shaft member 41.
- the shaft member 41 is acted upon by a reaction force or the like accompanying the screwing from a bolt or the like in which the tip end portion 41a is in contact with the steel member side protrusion 60 or the like.
- the connecting member 5 is moved in a direction away from the end side surface 31 of the steel sheet pile 2 in the direction X perpendicular to the material axis.
- the fixing member 4 is arranged between the connecting member 5 and the end side surface 31 of the steel sheet pile 2 as a member that moves the connecting member 5 in the material axis orthogonal direction X.
- the wedge member 42 to be mounted may be used. In the present embodiment, the case where the wedge member 42 is provided on one side in the material axis direction X is described as an example. However, the wedge member 42 may be provided on both sides in the material axis direction X with respect to the connecting member 5.
- the wedge member 42 has a substantially wedge shape in which the plate thickness is increased in a tapered shape from a leading portion 42a that is driven in advance between the connecting member 5 and the end side surface 31 of the steel sheet pile 2.
- the wedge member 42 precedes between the connecting member 5 and the end side surface 31 of the steel sheet pile 2 immediately after the connecting side protrusion 50 and the steel member side protrusion 60 are fitted. It is driven from the part 42a. Then, as shown in FIG. 21, the wedge member 42 is further driven between the connecting member 5 and the end side surface 31 of the steel sheet pile 2, and from the end side surface 31 of the steel sheet pile 2 in the material axis orthogonal direction X. The connecting member 5 is moved in the separating direction.
- any one of the shaft members 41 shown in FIGS. 14 to 19 or the wedge member 42 shown in FIGS. 20 and 21 is used alone.
- the connecting member 5 may be moved in the material axis orthogonal direction X.
- the fixing member 4 is in a state before the connecting member 5 is moved in a direction away from the end side surface 31 of the steel sheet pile 2, and the inner side surface 50 a of the connecting side protrusion 50 and the steel member side.
- the outer surface 60b of the protrusion 60 is in a state of being separated from each other in the material axis direction Y.
- the fixing member 4 is the state which moved the connection member 5 in the direction away from the end part side surface 31 of the steel sheet pile 2, and the inner side surface 50a of the connection side protrusion part 50, and a steel member.
- the outer surface 60b of the side protrusion 60 is in a state of being close to each other in the material axis direction Y.
- the fixing member 4 has an inner side surface 50a of the connection-side protrusion 50 when each of the connection-side protrusion 50 and the steel member-side protrusion 60 is formed into a single-sided tapered shape. And the outer side surface 60b of the steel member-side protrusion 60 are kept close to each other until they come into contact with each other.
- the fixing member 4 can be connected to the connection-side protrusion even when each of the connection-side protrusion 50 and the steel member-side protrusion 60 is formed in a substantially parallel double-sided tapered shape.
- the inner side surface 50a of the part 50 and the outer side surface 60b of the steel member-side protrusion 60 are brought into a state of being brought into close contact with each other.
- the fixing member 4 can also be connected to the connection-side protrusion 50 even when each of the connection-side protrusion 50 and the steel member-side protrusion 60 is formed in a wide double-sided taper shape.
- the inner side surface 50a and the outer side surface 60b of the steel member-side protrusion 60 are brought close to each other.
- the inner side surface 50a of the connecting side protrusion 50 and the outer side surface 60b of the steel member side protruding part 60 are separated from each other.
- the gap G is made smaller than the gap G in which the outer side surface 50b of the connecting side protrusion 50 and the inner side surface 60a of the steel member side protrusion 60 are separated.
- the fixing member 4 is the state after moving the connection member 5, as shown in FIG. 27, the inner side surface 50a of the connection side protrusion part 50, and the outer side surface 60b of the steel member side protrusion part 60, It will be in the state which approached until it mutually contacted.
- a gap G is formed by separating the inner side surface 50a of the connecting side protrusion 50 and the outer side surface 60b of the steel member side protruding part 60.
- the gap G may be larger than the gap G in which the outer side surface 50b of the connection side protrusion 50 and the inner side surface 60a of the steel member side protrusion 60 are separated.
- the fixing member 4 moves the inner side surface 50a of the connection side protrusion 50 and the outer side surface 60b of the steel member side protrusion 60 in a state after the connection member 5 is moved. Let them be close to each other, although they are not in contact with each other.
- the gap G that separates the side surface 50b and the inner side surface 60a of the steel member-side protrusion 60 may have the same size.
- the fixing member 4 is in a state in which both side surfaces of the connection side protrusion 50 and the steel member side protrusion 60 are close to each other in a state after the connection member 5 is moved.
- connection side protrusion 50 of the connection member 5 is disposed, and the connection side groove 52 between the connection side protrusions 50 is arranged.
- the steel member side protrusion 60 is disposed.
- connection-side protrusion 50 disposed in the steel-member-side groove 62 between the steel-member-side protrusions 60 is a steel-member-side protrusion disposed in a direction away from the longitudinal joint 3. Since the part 60 functions as a stopper, escape in a direction away from the longitudinal connection portion 3 is restricted.
- the steel member side protrusion 60 arranged in the direction away from the connection point 3 is a connection point on the basis of the steel plate side protrusion 50 against which the inner side surface 50a of the connection side protrusion 50 is pressed.
- positioned in the direction away from 3 is shown.
- the stopper does not indicate only the case where the inner side surface 60 a of the steel member-side projection 60 is in contact with the outer side surface 50 b of the connection-side projection 50. For example, even if the inner side surface 60a of the steel member-side protrusion 60 is separated from the outer surface 50b of the connection-side protrusion 50, when the connection-side protrusion 50 falls down, it contacts the connection-side protrusion 50 and escapes. If it can be regulated, it will constitute a stopper.
- the steel member cascade structure 1 is formed with a gap G in which the connection-side protrusion 50 and the steel member-side protrusion 60 are separated from each other, so that the connection-side protrusion 50 and the steel member-side protrusion 60 are formed. Can be smoothly fitted.
- the steel member cascade structure 1 connects the plurality of steel sheet piles 2 in the material axis direction Y by smoothing the fitting operation of the connection side protrusion 50 and the steel member side protrusion 60. It is possible to carry out the work to be performed easily and quickly.
- the steel member cascade structure 1 includes a plurality of steel sheet piles 2 embedded in the ground 8 or a plurality of steel sheet piles 2 embedded in the ground 8. Bending load acts on the longitudinal connection 3 where the steel sheet piles 2 are connected.
- the steel member cascade 1 is in an initial state in which the connecting member 5 is slid to fit the connecting side protrusion 50 and the steel member side protrusion 60 to receive a load. Immediately after that, it is provided in order to ensure sufficient bending rigidity at the joint portion 3 as much as the steel sheet pile 2 main body.
- the compressive force P caused by the bending load acts in the direction in which the steel sheet piles 2 approach each other in the material axis direction Y, as shown in FIG. .
- the end surfaces 30a of the end portions 30 of the steel sheet piles 2 are brought into contact with each other at the longitudinally connected portion 3 from the state immediately after the connecting side protruding portion 50 and the steel member side protruding portion 60 are fitted.
- the plurality of steel sheet piles 2 can transmit the compression force P to each other.
- the steel sheet piles 2 can transmit the compressive force P to each other from the time when the end faces 30a of the steel sheet piles 2 come into contact with each other when a bending load is input. .
- a tensile force T resulting from a bending load acts in a direction in which the plurality of steel sheet piles 2 are separated from each other in the material axis direction Y.
- the connecting member 5 is moved by the fixing member 4 to thereby move the inner side surface 50a of the connecting-side protrusion 50 as shown in FIGS.
- the outer side surface 60b of the steel member side projection 60 are in a state of approaching each other.
- the outer 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 connection-side protrusion 50 pressed against the outer surface 60b is also orthogonal to the material axis. Inclined with respect to the direction X.
- the inner side surface 50a of the connection side protrusion 50 and the outer side surface 60b of the steel member side protrusion 60 come into contact with each other, and there is no backlash due to the gap G. For this reason, the tensile force T (see FIG. 31) can be transmitted to the steel sheet piles 2 via the flat plate portion 51 of the connecting member 5 immediately after the tensile force T acts.
- the compressive force P and the tensile force T can be transmitted immediately after the connecting side protrusion 50 and the steel member side protrusion 60 are fitted or at a relatively early stage. For this reason, a plurality of steel sheet piles 2 can be firmly connected in the material axis direction Y by the connecting member 5 having the flat plate portion 51 while smoothly engaging the connecting side protruding portion 50 and the steel member side protruding portion 60. That is, as compared with the case where the proof stress is exhibited by the shearing force of the bolt that cascades the steel sheet piles 2, a large proof stress can be exhibited as the tensile force of the flat plate portion 51, so that sufficient initial bending rigidity can be ensured. It becomes possible.
- the steel member cascade structure 1 to which the present disclosure is applied ensures sufficient initial bending rigidity at the joint portions 3 of the plurality of steel sheet piles 2, and the cascade portions 3 of the plurality of steel sheet piles 2 are structural. It is difficult to become a weak point. Also, compared to the case where steel sheet piles 2 are welded in-situ at the joint 3 or the steel sheet piles 2 are cascaded with the shearing force of many high-strength bolts or the frictional joining force during tightening, Thus, it is possible to avoid a decrease in the bending rigidity of the entire steel sheet pile 2 that is cascaded.
- connection-side protrusion 50 disposed in the steel-member-side groove 62 between the steel-member-side protrusions 60 has the steel-member-side protrusion 60 disposed in a direction away from the cascade location 3 as a stopper. And the escape in the direction away from the cascade point 3 is restricted.
- connection side groove part 52 formed between one steel member side protrusion part 60 and the other steel member side protrusion part 60 which made the boundary location 3 the boundary can be suppressed. . Therefore, compared with the case where the steel member side protrusions 60 are simply provided, the load resistance can be improved and the unexpected detachment of the connecting member 5 can be suppressed.
- the steel member cascade structure 1 to which the present disclosure is applied uses a shaft member 41 such as a bolt as the fixing member 4 as shown in FIGS.
- the tip 41a of the steel plate is brought into contact with the steel member-side protrusion 60 and the like.
- the tip 41a of the shaft member 41 abuts on the steel member side protrusion 60 and the like, so that the side slip of the connection side protrusion 50 and the steel member side protrusion 60 is suppressed, and the connection member 5 is expected. It is possible to prevent the falling off.
- the wedge member 42 inserted and driven between the connecting member 5 and the end side surface 31 of the steel sheet pile 2 is used as the fixing member 4 so that the connecting member 5 is connected.
- the member 5 can be moved in the material axis orthogonal direction X. In this case, since a drilling operation for the connecting member 5 and a screwing operation such as a bolt are not required, a structure for moving the connecting member 5 can be easily realized.
- connection side protrusion part 50 and the steel member side protrusion part 60 it is desirable to chamfer the corner portion C of the connecting side protrusion 50 and the steel member side protrusion 60 by hot extrusion.
- the hot extrusion process of the corner part C in the connection side protrusion part 50 and the steel member side protrusion part 60 can be made easy, and the workability of the connection side protrusion part 50 and the steel member side protrusion part 60 is improved. It becomes possible to improve.
- connection side protrusion 50 and the steel member side protrusion 60 are formed to have substantially the same shape and dimensions, and the tip side is a wide single-sided taper or double-sided taper, the connection-side protrusion 50 and the connection-side groove 52.
- the total extension lp in the material axis direction Y and the protrusion width w1 satisfy the above formula (1). In this case, it can suppress that the connection side protrusion part 50 and the steel member side protrusion part 60 detach
- the steel member cascade structure 1 to which the present disclosure is applied connects a plurality of steel members having a specific cross-sectional shape in the material axis direction Y, but is not limited thereto.
- the steel sheet pile 2 such as the hat-shaped steel sheet pile 21 having a substantially hat-shaped cross section shown in FIGS. 3 to 5 can be used as the steel member.
- connection member 5 has the flat flat plate part 51, compared with the case where it forms in circular arc shape, manufacture and a process become easy and the workability
- connection member 5 is constructed with respect to the edge part 30 of the steel sheet pile 2, and as shown, for example in FIG. 35, the edge part 30 of the steel sheet pile 2 is orthogonal to a material axis direction.
- Two connecting members 5 may be installed so as to be sandwiched from X, and the position and number of connecting members 5 are arbitrary.
- the steel member cascade structure 1 to which the present disclosure is applied is separated from each other in the material axis direction Y and includes a plurality of connection-side protrusions 50 and steel member-side protrusions 60. It is formed.
- the fixing member 4 is in a state in which the steel member side protrusions 60 are fitted into the connection side grooves 52 between the connection side protrusions 50 or the steel member side grooves 62 between the steel member side protrusions 60 are connected to the fixing member 4. At least one of the states in which the protrusion 50 is fitted is formed.
- the side surface 50a, 50b of the connection side protrusion part 50 is moved by moving the connection member 5 in the direction (X arrow of FIG. 36) which approaches the end part side surface 31 of the steel sheet pile 2 in the material axis orthogonal direction X.
- a compressive force acts on the connection side protrusion 50 from the connection member 5 side toward the steel sheet pile 2 side.
- the connection side projection part 50 of the connection member 5 is constructed in the longitudinal connection part 3 of the steel sheet pile 2 in the state latched by the steel member side projection part 60.
- FIG. 36 and FIG. 37 showed the case where the steel member side protrusion part 60 was provided in the plate-shaped member 6 attached to the edge part 30 of each steel sheet pile 2, it is limited to this. is not.
- flat steel or the like to be the steel member side protrusion 60 may be directly attached to the end 30 of each steel sheet pile 2 by welding or the like.
- connection-side protrusion 50 and the steel member-side protrusion 60 include the side surfaces 50a and 50b in the connection-side protrusion 50 and the side surfaces 60a in the steel member-side protrusion 60, 60b is formed in a tapered shape inclined with respect to the material axis orthogonal direction X.
- the connecting-side protruding portion 50 has a shape in which the flat plate portion 51 side is wider in the material axis direction Y than the distal end surface 50c side.
- the steel member side protrusion 60 has a shape in which the end side surface 31 side is wider in the material axis direction Y than the distal end surface 60c side.
- the shapes of the connection-side protrusion 50 and the steel member-side protrusion 60 viewed from the Z direction are trapezoids having short sides on the front end surfaces 50c and 60c side, respectively.
- connection-side protrusion 50 and the steel member-side protrusion 60 are formed in a double-sided taper shape in which the side surfaces 50a, 50b, 60a, 60b are inclined in the material axis orthogonal direction X as shown in FIG. At this time, the connection-side protrusion 50 and the steel member-side protrusion 60 incline the inner surface 50a and the outer surface 50b of the connection-side protrusion 50 in different directions, and the inner surface of the steel member-side protrusion 60. 60a and the outer surface 60b are inclined in different directions.
- connection side protrusion 50 and the steel member side protrusion 60 are explained when the inner surface 50a of the connection side protrusion 50 and the outer surface 60b of the steel member side protrusion 60 are inclined with respect to the material axis orthogonal direction X.
- the present invention is not limited to this.
- the outer side surface 50a of the connecting side projection 50 and the inner side surface 60a of the steel member side projection 60 are tapered on one side inclined with respect to the material axis orthogonal direction X. May be.
- the fixing member 4 has a shaft member 41 that passes through the hole 5 a provided in the connecting member 5 and is inserted into the hole 60 d provided in the steel member-side protrusion 60. Used. Moreover, as shown in the modification of FIG. 41, while penetrating the hole 30b provided in the edge part 30 of the steel sheet pile 2, it may be penetrated by the hole 50d provided in the connection side protrusion part 50. As shown in FIG. Here, the term “insertion” means a state where it is not penetrated but is partially inserted.
- a bolt or the like is used as the shaft member 41.
- the hole 5a provided in the connecting member 5 through which the bolt or the like passes or the hole 30b provided in the end 30 of the steel sheet pile 2 is threaded is arbitrary.
- the shaft member 41 penetrates from a hole 5a provided in the connecting member 5 to a hole 30b provided in the end 30 of the steel sheet pile 2, and a nut 43 or the like. May be screwed together. At this time, whether or not the hole 5a provided in the connecting member 5 and the hole 30b provided in the end portion 30 of the steel sheet pile 2 are threaded is arbitrary.
- the hole 5a provided in the connecting member 5 or the hole 30b provided in the end 30 of the steel sheet pile 2 may be formed larger than the shape of the shaft member 41, for example, when not threaded.
- the direction of the material axis is such that the side surfaces 50 a, 50 b of the connecting side protruding portion 50 and the side surfaces 60 a, 60 b of the steel member side protruding portion 60 contact each other.
- the position of the connecting member 5 in Y can be adjusted. Further, at least one of the state in which the steel member side protrusion 60 is fitted in the connection side groove 52 or the state in which the connection side protrusion 50 is fitted in the steel member side groove 62 is easy. Can be realized.
- the hole 5a provided in the connecting member 5 or the hole 30b provided in the end 30 of the steel sheet pile 2 may be a long hole whose long side is the material axis direction Y when not threaded.
- the shaft member 41 moves the connecting member 5
- the range of adjustable positions of the connecting member 5 in the material axis direction Y can be expanded. Accordingly, at least one of the state in which the steel member side protrusion 60 is fitted in the connection side groove 52 or the state in which the connection side protrusion 50 is fitted in the steel member side groove 62 is achieved. Can be realized more easily.
- the steel member cascade 1 to which the present disclosure is applied includes a temporary receiving member 44 and the like in a state where the connecting member 5 is close to the steel member-side protrusion 60 as shown in the modified examples of FIGS. 43 and 44.
- the connection member 5 may be fixed in a state where a part of the connection member 5 is in contact with the steel member-side protrusion 60.
- a Z-shaped steel material is used as the temporary support member 44, and a pair of temporary support members 44 are provided with the steel member-side protruding portion 60 sandwiched in the material axial direction Y.
- One end of the temporary support member 44 is fixed to the end side surface 31 of the steel sheet pile 2 with a bolt or the like, and one end of the temporary support member 44 can be rotated about the bolt or the like as an axis.
- the connecting member 5 is temporarily fixed in the material axis direction Y.
- the shaft member 41 passes through the hole 5a provided in the connecting member 5, and is provided in the steel member side protrusion 60. Temporarily fix in a state of being inserted through the hole 60d.
- the connecting member 5 is temporarily fixed in a state in which a part of the shaft member 41 is screwed into, for example, a hole 60d provided in the steel member side protrusion 60 that is threaded.
- the steel member cascade structure 1 to which the present disclosure is applied includes a shaft member in a state in which the connecting member 5 is in proximity to or in contact with the steel member-side protrusion 60 without using the temporary support member 44 or the like, for example. 41 may be temporarily fixed and fixed.
- the shaft member 41 is screwed into the hole 60d provided in the steel member side protrusion 60.
- the shaft member 41 is at least in a state where the steel member side protrusion 60 is fitted to the connection side groove 52 or a state where the connection side protrusion 50 is fitted to the steel member side groove 62.
- the connecting member 5 is moved in a direction approaching the end side surface 31 in the material axis orthogonal direction X so as to be in any state.
- the connection-side protrusion 50 and the two adjacent steel member-side protrusions 60 are in contact with each other.
- the shaft member 41 moves the connecting member 5 in a direction approaching the end side surface 31 in the material axis orthogonal direction X so that at least one of the areas in contact with the inner side surface 60a of the side protrusion 60 is increased.
- the shaft member 41 is further tightened after being screwed into the hole 60d provided in the steel member side protrusion 60. Then, the shaft member 41 causes the compressive force to act on the connecting member 5 from the connecting member 5 side toward the steel sheet pile 2 side. As a result, a frictional force is generated at a contact portion between the connection-side protrusion 50 and the two adjacent steel member-side protrusions 60, and the connection-side protrusion 50 is adjacent to the two steel member-side protrusions 60. Is locked in the material axis direction Y. At this time, the front end surface 50 c of the connection side protrusion 50 may be separated from the steel member side groove 62, and the front end surface 60 c of the steel member side protrusion 60 may be separated from the connection side groove 52.
- connection-side protrusion 50 and the steel member-side protrusion 60 have a protrusion height h1b in the material axis orthogonal direction X at the steel-member-side protrusion 60. In some cases, it is formed so as to be substantially equal to the protrusion height h1a in the material axis orthogonal direction X.
- the minimum separation width c2a which is the minimum groove width of the steel member-side groove 62, is formed to be equal to or less than the protrusion width w1b in the material axis direction Y of the distal end surface 50c of the connection-side protrusion 50.
- the minimum separation width c2b which is the minimum groove width of the connection-side groove 52, is formed to be equal to or less than the protrusion width w1a in the material axis direction Y of the tip surface 60c of the steel member-side protrusion 60.
- the edge of the distal end surface 50c of the connecting side protrusion 50 is in contact with the steel member side groove 62, or In a separated state, the side surfaces 50a and 50b of the connection-side protrusion 50 and the side surfaces 60a and 60b of the two steel member-side protrusions 60 adjacent to each other contact each other (see FIG. 49).
- the edge of the tip surface 60c of the steel member-side protruding portion 60 is in contact with the connecting-side groove portion 52.
- the side surfaces 60a and 60b of the steel member side projection 60 are in contact with the side surfaces 50a and 50b of the two connecting projections 50 adjacent to each other.
- connection-side protrusion 50 and the steel member-side protrusion 60 are steel member-side groove portions.
- the relationship in which the minimum separation width c2a of 62 is equal to or less than the projection width w1b of the connection-side protrusion 50, or the relationship in which the minimum separation width c2b of the connection-side groove 52 is equal to or less than the protrusion width w1a of the steel member-side protrusion 60 Satisfy at least one of the relationships.
- connection-side protrusion 50 and the steel member-side protrusion 60 are securely connected to the two steel-member-side protrusions 60 adjacent to the connection-side protrusion 50 as the connection member 5 is moved by the fixing member 4. Abut. For this reason, the state by which the connection side protrusion part 50 was latched in the material axial direction Y by the two adjacent steel member side protrusion parts 60 can be formed reliably.
- connection-side protrusion 50 and the steel member-side protrusion 60 have the protrusion height h1b of the connection-side protrusion 50 substantially equal to the protrusion height h1a of the steel member-side protrusion 60, and the protrusion width w1b of the tip surface 50c is the same.
- the protrusion width w1a of the front end surface 60c is substantially equal to the minimum separation width c2b, the volume of the separation portion between the connection side protrusion 50 and the steel member side protrusion 60 is reduced. Can do. For this reason, the area which the connection side protrusion part 50 and the steel member side protrusion part 60 contact becomes large, and it becomes possible to avoid stress concentration.
- the steel member cascade structure 1 to which the present disclosure is applied includes, for example, as illustrated in FIGS. 47 and 48, 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 At least one of the outer side surface 50b of the connection side protrusion part 50 and the inner surface 60a of the steel member side protrusion part 60 is substantially parallel.
- the area which the inner side surface 50a of the connection side projection part 50 mutually adjacent and the outer side surface 60b of the steel member side projection part 60 contact, or the outer side surface 50b of the connection side projection part 50 adjacent to each other and the steel member At least one of the areas in contact with the inner surface 60a of the side protrusion 60 can be increased. For this reason, the load transmission between the connection side protrusion part 50 and the steel member side protrusion part 60 can be made easy.
- 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 50 b of the connection side protrusion 50 and the steel member side At least one of the inner surface 60a of the protrusion 60 may have a different taper angle. Even in this case, it is possible to form a state in which the connection-side protrusion 50 is in contact with and locked to two adjacent steel member-side protrusions 60.
- the edges of the distal end surface 50c of the connection side projection 50 (the edges of the inner side surface 50a and the outer side surface 50b) abut against the inner side surface 60a and the outer side surface 60b of the steel member side projection 60. In contact with each other, a state in which the connecting-side protruding portion 50 is locked is formed.
- the edges (inner side surface 60a and outer side surface 60b) of the tip end surface 60c of the steel member side projection 60 abut against the inner side surface 50a and the outer side surface 50b of the connection side projection 50, and are connected. A state in which the side protrusions 50 are locked is formed.
- the configuration in which the edges of the inner side surface 50a and the outer side surface 50b of the connection side protrusion 50 abut on the inner side surface 60a and the outer side surface 60b of the steel member side protrusion 60 is a steel that faces the connection side slope of the present disclosure. It is included in “pressing” against the slope on the manufacturing member side.
- abut to the inner side surface 50a and the outer side surface 50b of the connection side protrusion part 50 is the steel member side which opposes the connection side slope of this indication. Included in “pressing against” the slope.
- connection-side protruding portion 50 and the two adjacent steel member-side protruding portions 60 can be arbitrarily set within a range in which a state where they are brought into contact and locked can be formed.
- connection side protrusion part 50 arrange
- positioned in the direction away from the cascade location 3 functions as a stopper.
- the joint portions 3 of the plurality of steel sheet piles 2 do not become structural weak points. Thereby, the bending rigidity of the whole steel member in which the plurality of steel sheet piles 2 are connected to each other is avoided while avoiding lengthening of the construction period due to on-site welding or high-strength bolt frictional joining at the joint portions 3 of the plurality of steel sheet piles 2. A decrease can be avoided.
- connection side protrusion part 60 is fitted in the connection side groove part 52, or the state in which the connection side protrusion part 50 is fitted in the steel member side groove part 62.
- the fixing member 4 that moves the connecting member 5 is used.
- a compressive force acts on the connecting member 5 from the connecting member 5 side toward the steel sheet pile 2 side, and a state is formed in which the connecting-side protruding portion 50 is locked by the steel member-side protruding portion 60.
- connection-side protrusion 50 and the two adjacent steel-member-side protrusions 60 can be easily brought into contact with each other by the shape of the connection-side protrusion 50 and the shape of the steel-member-side protrusion 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 two adjacent steel member-side protruding portions 60, and when an alternating load of positive and negative bending works. The shift can be suppressed.
- the shaft member 41 such as a bolt
- the bolt or the like penetrates the hole 5 a provided in the connecting member 5, and the hole provided in the threaded steel member-side protrusion 60. 60d or the like or screwed into the nut 43.
- the latching state of the connection side projection part 50 is maintained, it becomes possible to prevent the connection member 5 from falling off.
- the minimum separation width c2a of the steel member side groove part 62 is below the protrusion width w1b of the connection side protrusion part 50.
- at least one of the relations in which the minimum separation width c2b of the connection-side groove 52 is equal to or less than the protrusion width w1a of the steel member-side protrusion 60 The steel member side protrusion 60 can be brought into contact with each other with certainty.
- connection side protrusion part 50 was latched in the material axial direction Y by the two adjacent steel member side protrusion parts 60 can be formed reliably, and when the alternating load of positive / negative bending works The deviation can be further suppressed.
- connection side protrusion 50 and the outer side surface 60b of the steel member side protrusion 60 or the outer side surface 50b of the connection side protrusion 50 and the inner side surface 60a of the steel member side protrusion 60 are at least. Either is substantially parallel. For this reason, the area which the inner side surface 50a of the connection side protrusion part 50 mutually adjacent and the outer side surface 60b of the steel member side protrusion part 60 contact, or the outer side surface 60b of the connection side protrusion part 50 adjacent to each other and a steel member The area in contact with the inner side surface 60a of the side protrusion 60 can be increased. Thereby, the stress transmission between the connection side protrusion part 50 and the steel member side protrusion part 60 can be made easy, and it becomes possible to further suppress the shift
- connection side protrusion part 50 and the outer side surface 60b of the steel member side protrusion part 60, and the outer side surface 50b of the connection side protrusion part 50 and the inner side surface 60a of the steel member side protrusion part 60 are substantially parallel. It is. For this reason, the volume of the separation
- the corner part C in the steel member side protrusion part 60 may be chamfered by hot extrusion.
- the steel member cascade structure 1 to which the present disclosure is applied facilitates hot extrusion of the corner portion C in the connection-side protrusion 50 and the steel-member-side protrusion 60, so that the connection-side protrusion 50 and the workability of the steel member side projection 60 can be improved.
- the steel sheet pile 2 such as the hat-shaped steel sheet pile 21 having a substantially hat-shaped cross section shown in FIGS. 3 to 5 is used as the steel member
- the present invention is not limited to this.
- one connecting member 5 is installed on the end 30 of the steel sheet pile 2, and for example, as shown in FIG. 35, the end 30 of the steel sheet pile 2 is arranged in the direction perpendicular to the material axis.
- Two connecting members 5 may be installed so as to be sandwiched by X, and the location and number of the connecting members 5 are arbitrary.
- the fixing member 4 penetrates the hole 5a provided in the connecting member 5 and is inserted into the hole 30b provided in the steel member side projection 60 or the steel sheet pile 2 which is a steel member. Also good.
- connection-side protrusion 50 of the connection member 5 is fitted with a steel member-side groove 62 formed between the plurality of steel member-side protrusions 60.
- steel member side protrusion 60 of the steel sheet pile 2 is fitted with a connection side groove 52 formed between the plurality of connection side protrusions 50.
- the cascade structure of the steel member of the first aspect is A steel member side protruding portion that protrudes from an end side surface of one steel member and an end side surface of the other steel member that are coupled in the material axis direction, and that is inclined with respect to the protruding direction.
- the steel member-side protrusion formed on at least one of the boundary surface of the steel member and the side away from the boundary of the slope;
- a flat plate portion disposed across the boundary and a connection-side protrusion portion protruding from the flat plate portion toward the end side surface of each steel member, and on the steel member-side inclined surface of the steel member-side protrusion portion
- a connecting member having opposing connecting-side slopes formed on the connecting-side protrusion;
- a fixing member that presses the connection-side inclined surface against the steel member-side inclined surface in a state where a gap is formed between the flat plate portion and the steel member-side protruding portion; It has.
- the cascade structure of the steel member of the second aspect is the first aspect, A plurality of the steel member side projections arranged side by side in the material axis direction are provided on each steel member, and from the boundary of the connection side projections arranged between the steel member side projections A stopper for restricting escape in the direction away from the steel member is formed by the steel member-side protrusion disposed on the side away from the boundary.
- the cascade structure of the steel member of the third aspect is the first or second aspect, The fixing member presses the connecting-side inclined surface against the steel-member-side inclined surface facing the connecting-side inclined surface by a load in a direction in which the connecting member moves away from the steel member.
- the cascade structure of the steel member of the fourth aspect is the third aspect,
- the fixing member penetrates the connecting member and penetrates the steel member side protrusion, or the shaft member that comes into contact with the end side surface, or the end side surface of the steel member and connects the connecting member.
- a shaft member abutted on the member is included.
- the cascade structure of the steel member of the fifth aspect is the fourth aspect,
- the shaft member includes a bolt that is screwed into a screw hole that penetrates the connecting member or the steel member.
- the cascade structure of the steel member of the sixth aspect is the third to fifth aspects,
- the fixing member includes a wedge member interposed between the connection member and the end side surface.
- connection member has a plurality of the connection-side protrusions arranged side by side in the material axis direction, and the connection-side groove portion in which the steel member-side protrusions are arranged between the adjacent connection-side protrusions.
- connection-side protrusion and the steel member-side protrusion have the same protrusion width w1 in the material axis direction at the front end of each protrusion direction, and the base-end side of the connection-side protrusion and the connection-side groove.
- the total dimension lp in the material axis direction combined with the parts satisfies the relationship defined by the following equation (1).
- connection-side protrusion has a plurality of the connection-side protrusions arranged side by side in the material axis direction, and the flat plate portion side has a shape wider than the tip side in the material axis direction
- the steel member side protrusion has a plurality of the steel member side protrusions arranged side by side in the material axis direction, and the end side surface side of the steel member is in the material axis direction than the tip side.
- the shape is widened to
- the fixing member is provided in the shaft member that passes through the hole provided in the connecting member and is inserted through the hole provided in the steel member side protrusion or the steel member, or the steel member. Including a shaft member that penetrates the hole and is inserted into the hole provided in the connecting member, The fixing member is in a state in which the steel member side protrusion is disposed in a connection side groove between adjacent connection side protrusions, or a steel member side groove between adjacent steel member side protrusions. The connection member is pressed against the steel member side in at least one of the states in which the connection side protrusion is disposed on the part.
- the cascade structure of the steel member of the ninth aspect is the eighth aspect,
- the shaft member may be screwed into a threaded hole in the steel member side projection or the hole in the connection side projection, or threaded into the nut through the connection member and the steel member. Is done.
- the cascade structure of the steel member of the tenth aspect is the eighth or ninth aspect,
- the relationship that the minimum groove width c2a of the steel member side groove is equal to or less than the protrusion width w1b in the material axis direction at the tip of the connection side protrusion, or the minimum groove width c2b of the connection side groove is the steel.
- the cascade structure of the steel member of the eleventh aspect is any one of the first, eighth to tenth aspects,
- the connection-side protrusion and the steel member-side protrusion are the boundary-side surface of the connection-side protrusion and the surface of the steel-member-side protrusion that is away from the boundary, or the connection-side protrusion. At least one of the surface on the side away from the boundary in the portion and the surface on the boundary side in the steel member-side projection is substantially parallel.
- the cascade structure of the steel member of the twelfth aspect is any one of the first to eleventh aspects.
- connection-side protrusion and the steel member-side protrusion have a shape in which a corner on the front end side in the protruding direction is chamfered.
- the cascade structure of the steel member of the first aspect is A steel member cascade structure for connecting a plurality of steel members having a predetermined cross-sectional shape in the material axis direction, A connecting member that is installed at a longitudinal joint where the ends of each steel member in the material axis direction are connected to each other; a fixing member that moves the connecting member in a direction perpendicular to the material axis; and an end of each steel member A base material side protruding portion that protrudes in the direction perpendicular to the material axis from the side surface toward the connecting member,
- the connecting member includes a flat plate portion that is continuous in the material axis direction across the connecting portion, and a connection side protrusion portion that protrudes in the direction perpendicular to the material axis from the flat plate portion toward the end side surface.
- connection side protrusion and the base material side protrusion are formed in a tapered shape in which the side surface of the connection side protrusion and the side surface of the base material side protrusion are inclined in the direction perpendicular to the material axis.
- the cascade structure of the steel member of the second aspect is the first aspect,
- the connection-side protrusion and the base material-side protrusion are the inner surface of the connection-side protrusion that is close to the longitudinally connected portion in the material axis direction, and the vertical direction in the material axis direction of the base material-side protrusion.
- the outer surface separated from the joint is formed into a tapered shape inclined in the direction perpendicular to the material axis
- the fixing member has the end portion in the direction perpendicular to the material axis such that the inner side surface of the connection side projection and the outer side surface of the base material side projection are close to each other in a material axis direction.
- the connecting member is moved in a direction away from the side surface.
- the cascade structure of the steel member of the third aspect is the first or second aspect,
- the fixing member penetrates the connecting member and abuts against the base member side protruding portion or the end side surface or the end portion of the steel member and abuts against the connecting member.
- a shaft member is used.
- the cascade structure of the steel member of the fourth aspect is the third aspect
- the shaft member is a bolt that is screwed into a screw hole that penetrates the end of the connecting member or the steel member.
- the cascade structure of the steel member of the fifth aspect is any one of the first to fourth aspects.
- As the fixing member a wedge member interposed between the connecting member and the end side surface is used.
- the cascade structure of the steel member of the sixth aspect is any one of the first to fifth aspects.
- the connection member is spaced apart from each other in the material axis direction to form a plurality of the connection side protrusions, and is formed in a connection side groove portion in which the plurality of connection side protrusions adjacent in the material axis direction are separated from each other.
- the base material side protrusion is fitted,
- the connection-side protrusion and the base-material-side protrusion are formed so that the protrusion widths w1 in the material axis direction on the tip side in the direction perpendicular to the material axis are substantially the same, and the connection-side protrusion and the connection-side groove.
- the total extension lp in the material axis direction and the protrusion width w1 satisfy the relationship defined by the following equation (1).
- connection side protrusions are spaced apart from each other in the material axis direction to form a plurality of the connection side protrusions, and have a shape in which the flat plate part side is wider in the material axis direction than the tip surface side
- base material side projections are spaced apart from each other in the material axis direction to form a plurality of base material side projections, and the end side surface side of the steel member is wider in the material axis direction than the tip surface side.
- the fixing member passes through a hole provided in the connecting member and is inserted into a hole provided in the base material side protrusion, or a hole provided in the end of the steel member.
- a shaft member that penetrates and is inserted into a hole provided in the connection side protrusion is used.
- the fixing member is in a state in which the base material side protrusion is fitted into a connection side groove in a portion where a plurality of the connection side protrusions adjacent to each other in the material axis direction are separated, or adjacent in the material axis direction.
- the connecting member is moved in a direction approaching the side of the part.
- the cascade structure of the steel member of the eighth aspect is the seventh aspect,
- the shaft member is a hole provided in the threaded base material side protrusion, a bolt screwed into a hole provided in the connection side protrusion, or the end of the connection member and the steel member. Bolts that pass through and are screwed onto the nuts are used.
- the cascade structure of the steel member of the ninth aspect is the seventh or eighth aspect,
- the connection side protrusion and the base material side protrusion are The relationship that the minimum separation width c2a of the base material side groove is not more than the projection width w1b in the material axis direction on the tip surface of the connection side projection, or The relationship in which the minimum separation width c2b of the connecting side groove is not more than the protrusion width w1a in the material axis direction at the tip surface of the base material side protrusion, Satisfy at least one of the following relationships.
- the cascade structure of the steel member of the tenth aspect is any one of the first and seventh to ninth aspects.
- the connecting side protrusion and the base material side protrusion are the inner surface of the connecting side protrusion close to the connecting portion in the material axis direction and the connecting portion in the material axis direction of the base material side protrusion.
- At least one of the side surfaces is substantially parallel.
- the cascade structure of the steel member of the eleventh aspect is any one of the first to tenth aspects,
- the connection-side protrusion and the base-material-side protrusion have a shape in which corner portions between the tip surface in the direction perpendicular to the material axis and the inner surface or the outer surface in the material axis direction are chamfered.
- the following effects are obtained.
- a sufficient initial bending rigidity is ensured at the longitudinally connected portions such as the plurality of steel sheet piles, and the longitudinally connected portions such as the plurality of steel sheet piles are not structural weak points.
- a gap is formed by separating the connection side protrusion and the base material side protrusion, and the connection work of the connection side protrusion and the base material side protrusion is performed.
- connection side protrusion since the tensile force can be transmitted immediately after the connection side protrusion and the base material side protrusion are fitted or at a relatively early stage, the connection side protrusion.
- the connection side protrusion while smoothing the mating work of the base material side projection, firmly connect a plurality of steel sheet piles, etc. in the direction of the material axis to ensure sufficient initial bending rigidity comparable to the main body of the steel sheet piles, etc. Is possible.
- a shaft member such as a bolt
- the tip end portion of the bolt or the like screwed into the screw hole is formed on the base material side protrusion or the like.
- the connecting side protrusion and the base material side protrusion can be prevented from sliding from the fitted state, and the connecting member can be prevented from falling off.
- the connecting member is orthogonal to the material axis even when the wedge member that is interposed and driven between the connecting member and the end face of the steel sheet pile is used as the fixing member. Since it can be moved in the direction, it is possible to easily realize a structure in which the connecting member is moved without the need for drilling a screw hole with respect to the connecting member and the screwing operation of a bolt or the like.
- connection-side protrusion and the base-material-side protrusion are formed in substantially the same shape and dimension, the tip side becomes a wide single-sided taper or double-sided taper.
- the total extension lp in the material axis direction combined with the connecting side protrusion and the connecting side groove and the protrusion width w1 satisfy the relationship defined by the above equation (1), so that the connecting side protrusion and the base material side It is possible to reliably prevent the protrusion from being detached from the fitted state in the direction perpendicular to the material axis.
- a fixing member that moves the connecting member is used so as to achieve such a state. For this reason, a compressive force acts on the connecting member from the connecting member side toward the steel member side, and a state is formed in which the connecting side protrusion is locked by the base material side protrusion.
- connection side protrusions adjacent to the connection side protrusion are easily brought into contact with each other by the shape of the connection side protrusion and the shape of the base material side protrusion. be able to.
- the connecting-side protruding portion is locked in the material axis direction by two adjacent base material-side protruding portions, and to suppress a deviation when an alternating load of positive and negative bending works. It becomes possible.
- the bolt or the like penetrates a hole or the like provided in the connecting member, and is threaded. Are screwed into a hole or the like provided in the nut. For this reason, while the latching state of a connection side projection part is hold
- the minimum separation width c2a of the base material side groove is the connection side protrusion. Satisfying at least one of the relationship of the projection width w1b or less of the above, or the relationship that the minimum separation width c2b of the coupling side groove portion is the projection width w1a or less of the base material side projection, And two adjacent base material side protrusions can be reliably brought into contact with each other.
- the contact area can be increased. Thereby, it is possible to facilitate the transmission of stress between the connecting side protrusion and the base material side protrusion, and it is possible to further suppress the deviation when an alternating load of positive and negative bending works.
- the inner side surface of the connection side protrusion and the outer surface of the base material side protrusion, and the outer surface of the connection side protrusion and the inner surface of the base material side protrusion are Since they are substantially parallel to each other, the volume of the separation portion between the connection side protrusion and the base material side protrusion can be reduced. Thereby, the area which the connection side protrusion part and base material side protrusion part contact becomes large, and stress transmission becomes easy.
- connection side protrusion and the base material side protrusion are chamfered, so that the hot extrusion of the corner portion of the connection side protrusion and the base material side protrusion is facilitated. Therefore, it becomes possible to improve the workability of the connection side protrusion and the base material side protrusion.
- the disclosure of Japanese Patent Application No. 2016-156002 filed on August 8, 2016 is incorporated herein by reference in its entirety.
- the disclosure of Japanese Patent Application No. 2017-027817 filed on Feb. 17, 2017 is incorporated herein by reference in its entirety.
- all documents, patent applications, and technical standards described in this specification are the same as when individual documents, patent applications, and technical standards are specifically and individually described to be incorporated by reference. Incorporated herein by reference.
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Abstract
Description
鋼製部材の縦継構造1は、連結側突起部50と鋼製部材側突起部60とを離間させた間隙Gが形成されることで、連結側突起部50及び鋼製部材側突起部60を円滑に嵌合させることができる。このように、鋼製部材の縦継構造1は、連結側突起部50及び鋼製部材側突起部60の嵌合作業が円滑となることで、複数の鋼矢板2を材軸方向Yに連結する作業を容易、迅速に実施することが可能となる。
本開示を適用した鋼製部材の縦継構造1は、例えば図47及び図48に示すように、連結側突起部50の内側面50aと鋼製部材側突起部60の外側面60b、又は、連結側突起部50の外側面50bと鋼製部材側突起部60の内側面60aとの少なくとも何れかが、略平行である。これにより、互いに隣接する連結側突起部50の内側面50aと鋼製部材側突起部60の外側面60bとの接する面積、又は、互いに隣接する連結側突起部50の外側面50bと鋼製部材側突起部60の内側面60aとの接する面積の少なくとも何れかを、大きくすることができる。このため、連結側突起部50と鋼製部材側突起部60との間の荷重伝達を容易にすることができる。
2 鋼矢板
2a フランジ部
2b ウェブ部
2c アーム部
2d 継手部
21 ハット形鋼矢板
22 U形鋼矢板
23 Z形鋼矢板
24 H形鋼
25 角形鋼管
26 円形鋼管
3 縦継箇所
30 端部
30a 端面
30b 端部に設けられた孔
31 端部側面
4 固定部材
40 ねじ孔
41 軸部材
41a 先端部
42 楔部材
42a 先行部
43 ナット
44 仮受け材
5 連結部材
5a 連結部材に設けられた孔
50 連結側突起部
50a 連結側突起部の内側面
50b 連結側突起部の外側面
50c 連結側突起部の先端面
50d 連結側突起部に設けられた孔
51 平板部
51a 上板部
51b 下板部
52 連結側溝部
6 板状部材
60 鋼製部材側突起部
60a 鋼製部材側突起部の内側面
60b 鋼製部材側突起部の外側面
60c 鋼製部材側突起部の先端面
60d 鋼製部材側突起部に設けられた孔
62 鋼製部材側溝部
7 鋼製壁
70 連結鋼製部材
8 地盤内
X 材軸直交方向
Y 材軸方向
Z 壁幅方向
≪付記≫
本明細書からは、以下の他の態様が概念化される。
第1態様の鋼製部材の縦継構造は、
材軸方向に連結される一方の鋼製部材の端部側面及び他方の鋼製部材の端部側面より突出する鋼製部材側突起部であって、突出方向に対して傾斜する鋼製部材側斜面が両鋼製部材の境界側及び境界から離れた側の少なくとも一方に形成された前記鋼製部材側突起部と、
前記境界を跨いで配置される平板部及び該平板部より各鋼製部材の端部側面へ向けて突出する連結側突起部を有するとともに、前記鋼製部材側突起部の鋼製部材側斜面に対向する連結側斜面が前記連結側突起部に形成された連結部材と、
前記平板部と前記鋼製部材側突起部との間に隙間を形成した状態で前記連結側斜面を対向する前記鋼製部材側斜面に押し当てる固定部材と、
を備えている。
第2態様の鋼製部材の縦継構造は、第1態様において、
前記材軸方向に並んで配置された複数の前記鋼製部材側突起部が各鋼製部材に設けられ、各鋼製部材側突起部の間に配置された前記連結側突起部の前記境界から離れる方向への逃げを規制するストッパーが前記境界から離れた側に配置された前記鋼製部材側突起部で構成されている。
第3態様の鋼製部材の縦継構造は、第1又は第2態様において、
前記固定部材は、前記連結部材が前記鋼製部材から離れる方向への荷重によって前記連結側斜面を対向する前記鋼製部材側斜面に押し当てる。
第4態様の鋼製部材の縦継構造は、第3態様において、
前記固定部材は、前記連結部材を貫通して前記鋼製部材側突起部、若しくは前記端部側面に当接される軸部材、又は、前記鋼製部材の前記端部側面を貫通して前記連結部材に当接される軸部材を含む。
第5態様の鋼製部材の縦継構造は、第4態様において、
前記軸部材は、前記連結部材又は前記鋼製部材を貫通するねじ孔に螺合されるボルトを含む。
第6態様の鋼製部材の縦継構造は、第3~第5態様において、
前記固定部材は、前記連結部材と前記端部側面との間に介装される楔部材を含む。
第7態様の鋼製部材の縦継構造は、第1~第6の何れか一態様において、
前記連結部材は、前記材軸方向に並んで配置された複数の前記連結側突起部を有し、隣接する前記連結側突起部の間に前記鋼製部材側突起部が配置される連結側溝部が形成され、
前記連結側突起部及び前記鋼製部材側突起部は、各々の突出方向先端の前記材軸方向の突起幅w1が互いに略同寸法とされ、前記連結側突起部の基端側及び前記連結側溝部を合わせた前記材軸方向の合計寸法lpと前記突起幅w1とが、下記(1)式により規定される関係を満足する。
w1>lp/2 ・・・(1)
第8態様の鋼製部材の縦継構造は、第1態様において、
前記連結側突起部は、前記材軸方向に並んで配置された複数の前記連結側突起部を有し、前記平板部側が先端側よりも前記材軸方向に拡幅された形状であり、
前記鋼製部材側突起部は、前記材軸方向に並んで配置された複数の前記鋼製部材側突起部を有し、前記鋼製部材の前記端部側面側が先端側よりも前記材軸方向に拡幅された形状であり、
前記固定部材は、前記連結部材に設けられた孔を貫通するとともに前記鋼製部材側突起部若しくは鋼製部材に設けられた孔に挿通される軸部材、又は、前記鋼製部材に設けられた孔を貫通するとともに前記連結部材に設けられた孔に挿通される軸部材を含み、
前記固定部材は、隣接する前記連結側突起部の間の連結側溝部に前記鋼製部材側突起部が配置された状態、又は、隣接した前記鋼製部材側突起部の間の鋼製部材側溝部に前記連結側突起部が配置された状態の少なくとも何れかで前記連結部材を前記鋼製部材側へ押し当てる。
第9態様の鋼製部材の縦継構造は、第8態様において、
前記軸部材は、ねじ切りされた前記鋼製部材側突起部の孔又は前記連結側突起部の孔に螺合されるボルト、又は、前記連結部材及び前記鋼製部材を貫通してナットに螺合される。
第10態様の鋼製部材の縦継構造は、第8又は第9態様において、
前記鋼製部材側溝部の最小溝幅c2aが、前記連結側突起部の先端における前記材軸方向の突起幅w1b以下である関係、又は、前記連結側溝部の最小溝幅c2bが、前記鋼製部材側突起部の先端における前記材軸方向の突起幅w1a以下である関係の少なくとも何れかの関係を満足する。
第11態様の鋼製部材の縦継構造は、第1、第8~第10のいずれか一態様において、
前記連結側突起部及び前記鋼製部材側突起部は、前記連結側突起部における前記境界側の面と前記鋼製部材側突起部における前記境界から離れた側の面、又は、前記連結側突起部における前記境界から離れた側の面と前記鋼製部材側突起部における前記境界側の面との少なくとも何れかが略平行である。
第12態様の鋼製部材の縦継構造は、第1~第11のいずれか一態様において、
前記連結側突起部及び前記鋼製部材側突起部は、突出方向先端側の角部が面取りされた形状である。
<他の態様>
また、本明細書からは、以下の他の態様が概念化される。
第1態様の鋼製部材の縦継構造は、
所定の断面形状の複数の鋼製部材を材軸方向に連結する鋼製部材の縦継構造であって、
各々の鋼製部材の材軸方向の端部を互いに連結させた縦継箇所に架設される連結部材と、前記連結部材を材軸直交方向に移動させる固定部材と、各々の鋼製部材の端部側面から前記連結部材に向けて材軸直交方向に突出させた母材側突起部とを備え、
前記連結部材は、前記縦継箇所に跨らせて材軸方向に連続させた平板部と、前記平板部から前記端部側面に向けて材軸直交方向に突出させた連結側突起部とを有し、
前記連結側突起部及び前記母材側突起部は、前記連結側突起部における側面及び前記母材側突起部における側面が、材軸直交方向に傾斜させたテーパ状に形成される。
第2態様の鋼製部材の縦継構造は、第1態様において、
前記連結側突起部及び前記母材側突起部は、前記連結側突起部における材軸方向で前記縦継箇所に近接させた内側面、及び、前記母材側突起部における材軸方向で前記縦継箇所より離間させた外側面が、材軸直交方向に傾斜させたテーパ状に形成されて、
前記固定部材は、前記連結側突起部の内側面と前記母材側突起部の外側面とが材軸方向で互いに離間した状態から接近した状態となるように、材軸直交方向で前記端部側面から離間する方向に前記連結部材を移動させるものである。
第3態様の鋼製部材の縦継構造は、第1又は第2態様において、
前記固定部材は、前記連結部材を貫通するとともに前記母材側突起部若しくは前記端部側面に当接される軸部材、又は、鋼製部材の前記端部を貫通するとともに前記連結部材に当接される軸部材が用いられる。
第4態様の鋼製部材の縦継構造は、第3態様において、
前記軸部材は、前記連結部材又は鋼製部材の前記端部を貫通させたねじ孔に螺合されるボルトが用いられる。
第5態様の鋼製部材の縦継構造は、第1~4態様のいずれかの態様において、
前記固定部材は、前記連結部材と前記端部側面との間に介装される楔部材が用いられる。
第6態様の鋼製部材の縦継構造は、第1~5態様のいずれかの態様において、
前記連結部材は、材軸方向で互いに離間させて複数の前記連結側突起部が形成されるとともに、材軸方向に隣り合った複数の前記連結側突起部を離間させた部分の連結側溝部に前記母材側突起部が嵌合されて、
前記連結側突起部及び前記母材側突起部は、各々の材軸直交方向の先端側における材軸方向の突起幅w1が互いに略同一に形成されて、前記連結側突起部及び前記連結側溝部を合わせた材軸方向の合計延長lpと前記突起幅w1とが、下記(1)式により規定される関係を満足する。
w1>lp/2 ・・・(1)
第7態様の鋼製部材の縦継構造は、第1態様において、
前記連結側突起部は、材軸方向で互いに離間されて複数の前記連結側突起部が形成され、前記平板部側を先端面側よりも材軸方向に拡幅させた形状であり、
前記母材側突起部は、材軸方向で互いに離間されて複数の前記母材側突起部が形成され、鋼製部材の前記端部側面側を先端面側よりも材軸方向に拡幅させた形状であり、
前記固定部材は、前記連結部材に設けられた孔を貫通するとともに前記母材側突起部に設けられた孔に挿通される軸部材、又は、鋼製部材の前記端部に設けられた孔を貫通するとともに前記連結側突起部に設けられた孔に挿通される軸部材が用いられ、
前記固定部材は、材軸方向に隣り合った複数の前記連結側突起部を離間させた部分の連結側溝部に前記母材側突起部が嵌合される状態、又は、材軸方向に隣り合った複数の前記母材側突起部を離間させた部分の母材側溝部に前記連結側突起部が嵌合される状態、の少なくとも何れかの状態となるように、材軸直交方向で前記端部側面に接近する方向へ前記連結部材を移動させるものであ。
第8態様の鋼製部材の縦継構造は、第7態様において、
前記軸部材は、ねじ切りされた前記母材側突起部に設けられた孔又は前記連結側突起部に設けられた孔に螺合されたボルト、又は、前記連結部材及び鋼製部材の前記端部を貫通しナットに螺合されるボルトが用いられる。
第9態様の鋼製部材の縦継構造は、第7又は8態様において、
前記連結側突起部及び前記母材側突起部は、前記連結側突起部における材軸直交方向の突出高h1bが、前記母材側突起部における材軸直交方向の突出高h1aと略等しいとき、
前記母材側溝部の最小離間幅c2aが、前記連結側突起部の先端面における材軸方向の突起幅w1b以下である関係、又は、
前記連結側溝部の最小離間幅c2bが、前記母材側突起部の先端面における材軸方向の突起幅w1a以下である関係、
の少なくとも何れかの関係を満足する。
第10態様の鋼製部材の縦継構造は、第1、第7~9態様の何れかの態様において、
前記連結側突起部及び前記母材側突起部は、前記連結側突起部における材軸方向で前記縦継箇所に近接させた内側面と前記母材側突起部における材軸方向で前記縦継箇所より離間させた外側面、又は、前記連結側突起部における材軸方向で前記縦継箇所より離間させた外側面と前記母材側突起部における材軸方向で前記縦継箇所に近接させた内側面との少なくとも何れかが、略平行である。
第11態様の鋼製部材の縦継構造は、第1~10態様の何れかの態様において、
前記連結側突起部及び前記母材側突起部は、各々の材軸直交方向の先端面と材軸方向の内側面又は外側面とのコーナー部分が面取りされた形状である。
これらの他の態様においては以下の作用効果を奏する。
第1態様~第11態様によれば、複数の鋼矢板等の縦継箇所で十分な初期の曲げ剛性を確保して、複数の鋼矢板等の縦継箇所が構造的弱点とならないため、複数の鋼矢板等の縦継箇所で現場溶接又は高力ボルト摩擦接合による工期の長期化を避けながら、複数の鋼矢板等が互いに連結された連結鋼製部材全体の曲げ剛性の低下を回避することが可能となる。
第2態様~第6態様、第11態様によれば、連結側突起部と母材側突起部とを離間させた間隙が形成されて、連結側突起部及び母材側突起部の嵌合作業が円滑となることで、複数の鋼矢板等を材軸方向に連結する作業を容易、迅速に実施することが可能となる。
第2態様~第6態様、第11態様によれば、連結側突起部及び母材側突起部を嵌合させた直後又は比較的早い段階で、引張力の伝達ができるため、連結側突起部及び母材側突起部の嵌合作業を円滑にしながら、複数の鋼矢板等を材軸方向で頑強に連結させて、鋼矢板等の本体と同程度の十分な初期の曲げ剛性を確保することが可能となる。
特に、第3態様、第4態様、第11態様によれば、ボルト等の軸部材が固定部材に用いられることで、ねじ孔に螺合されたボルト等の先端部が母材側突起部等に当接されるため、連結側突起部及び母材側突起部が嵌合状態からスライド移動することを抑制して、連結部材の脱落を防止することが可能となる。
特に、第5態様、第11態様によれば、連結部材と鋼矢板等の端部側面との間に介装されて打ち込まれる楔部材が固定部材に用いられることでも、連結部材を材軸直交方向に移動させることができるため、連結部材に対するねじ孔の削孔作業及びボルト等の螺合作業等を不要として、連結部材を移動させる構造を容易に実現することが可能となる。
特に、第6態様、第11態様によれば、連結側突起部及び母材側突起部が互いに略同一の形状寸法に形成されて、先端側が幅広の片面テーパ状又は両面テーパ状となる場合は、連結側突起部及び連結側溝部を合わせた材軸方向の合計延長lpと突起幅w1とが、上記(1)式により規定される関係を満足することで、連結側突起部及び母材側突起部が嵌合状態から材軸直交方向に離脱することを確実に防止することが可能となる。
特に、第7態様~第11態様によれば、連結側溝部に母材側突起部が嵌合される状態、又は、母材側溝部に連結側突起部が嵌合される状態、の少なくとも何れかの状態となるように、連結部材を移動させる固定部材が用いられる。このため、連結部材には、連結部材側から鋼製部材側に向けて圧縮力が作用し、母材側突起部により連結側突起部を係止する状態が形成される。これにより、施工時において、連結部材側から鋼製部材側に向けて外圧力が作用したときに、連結側突起部の係止状態を保持する方向に圧縮力が作用するため、連結鋼製部材全体の曲げ剛性の向上を図ることが可能となる。
特に、第7態様~第11態様によれば、連結側突起部の形状及び母材側突起部の形状により、連結側突起部と隣接した2つの母材側突起部とを容易に当接させることができる。このため、連結側突起部が、隣接した2つの母材側突起部によって材軸方向に係止された状態を容易に形成することができ、正負曲げの交番荷重が働くときのずれを抑制することが可能となる。
特に、第8態様~第11態様によれば、ボルト等の軸部材が固定部材に用いられることで、連結部材に設けられた孔等をボルト等が貫通し、ねじ切りされた母材側突起部に設けられた孔等又はナットに螺合される。このため、連結側突起部の係止状態が保持されるとともに、連結部材の脱落を防止することが可能となる。
特に、第9態様~第11態様によれば、連結側突起部の突出高h1bが母材側突起部の突出高h1aと略等しいとき、母材側溝部の最小離間幅c2aが連結側突起部の突起幅w1b以下である関係、又は、連結側溝部の最小離間幅c2bが母材側突起部の突起幅w1a以下である関係、の少なくとも何れかの関係を満足することで、連結側突起部と隣接した2つの母材側突起部とを確実に当接させることができる。このため、連結側突起部が、隣接した2つの母材側突起部によって材軸方向に係止された状態を確実に形成することができ、正負曲げの交番荷重が働くときのずれをさらに抑制することが可能となる。
特に、第10態様、第11態様によれば、連結側突起部の内側面と母材側突起部の外側面、又は、連結側突起部の外側面と母材側突起部の内側面との少なくとも何れかが、略平行である。このため、互いに隣接する連結側突起部の内側面と母材側突起部の外側面との接する面積、又は、互いに隣接する連結側突起部の外側面と母材側突起部の内側面との接する面積を大きくすることができる。これにより、連結側突起部と母材側突起部との間の応力伝達を容易にすることができ、正負曲げの交番荷重が働くときのずれをさらに抑制することが可能となる。
特に、第10態様、第11態様によれば、連結側突起部の内側面と母材側突起部の外側面、及び、連結側突起部の外側面と母材側突起部の内側面とが、略平行であるため、連結側突起部と母材側突起部との間における離間部分の体積を減少させることができる。これにより、連結側突起部と母材側突起部との接する面積が大きくなり、応力伝達が容易になる。
特に、第11態様によれば、連結側突起部及び母材側突起部におけるコーナー部分が面取りされることで、連結側突起部及び母材側突起部におけるコーナー部分の熱間押出加工が容易になるため、連結側突起部及び母材側突起部の加工性を向上させることが可能となる。
そして、2016年8月8日に出願された日本国特許出願2016-156002号の開示は、その全体が参照により本明細書に取り込まれる。また、2017年2月17日に出願された日本国特許出願2017-027817号の開示は、その全体が参照により本明細書に取り込まれる。
また、本明細書に記載されたすべての文献、特許出願及び技術規格は、個々の文献、特許出願及び技術規格が参照により取り込まれることが具体的かつ個々に記された場合と同程度に、本明細書中に参照により取り込まれる。
Claims (12)
- 材軸方向に連結される一方の鋼製部材の端部側面及び他方の鋼製部材の端部側面より突出する鋼製部材側突起部であって、突出方向に対して傾斜する鋼製部材側斜面が両鋼製部材の境界側及び境界から離れた側の少なくとも一方に形成された前記鋼製部材側突起部と、
前記境界を跨いで配置される平板部及び該平板部より各鋼製部材の端部側面へ向けて突出する連結側突起部を有するとともに、前記鋼製部材側突起部の鋼製部材側斜面に対向する連結側斜面が前記連結側突起部に形成された連結部材と、
前記平板部と前記鋼製部材側突起部との間に隙間を形成した状態で前記連結側斜面を対向する前記鋼製部材側斜面に押し当てる固定部材と、
を備えた鋼製部材の縦継構造。 - 前記材軸方向に並んで配置された複数の前記鋼製部材側突起部が各鋼製部材に設けられ、各鋼製部材側突起部の間に配置された前記連結側突起部の前記境界から離れる方向への逃げを規制するストッパーが前記境界から離れた側に配置された前記鋼製部材側突起部で構成されている請求項1に記載の鋼製部材の縦継構造。
- 前記固定部材は、前記連結部材が前記鋼製部材から離れる方向への荷重によって前記連結側斜面を対向する前記鋼製部材側斜面に押し当てる請求項1又は請求項2に記載の鋼製部材の縦継構造。
- 前記固定部材は、前記連結部材を貫通して前記鋼製部材側突起部、若しくは前記端部側面に当接される軸部材、又は、前記鋼製部材の前記端部側面を貫通して前記連結部材に当接される軸部材を含む請求項3に記載の鋼製部材の縦継構造。
- 前記軸部材は、前記連結部材又は前記鋼製部材を貫通するねじ孔に螺合されるボルトを含む請求項4に記載の鋼製部材の縦継構造。
- 前記固定部材は、前記連結部材と前記端部側面との間に介装される楔部材を含む請求項3から請求項5の何れか1項に記載の鋼製部材の縦継構造。
- 前記連結部材は、前記材軸方向に並んで配置された複数の前記連結側突起部を有し、隣接する前記連結側突起部の間に前記鋼製部材側突起部が配置される連結側溝部が形成され、
前記連結側突起部及び前記鋼製部材側突起部は、各々の突出方向先端の前記材軸方向の突起幅w1が互いに略同寸法とされ、前記連結側突起部の基端側及び前記連結側溝部を合わせた前記材軸方向の合計寸法lpと前記突起幅w1とが、下記(1)式により規定される関係を満足する請求項1から請求項6の何れか1項に記載の鋼製部材の縦継構造。
w1>lp/2 ・・・(1) - 前記連結側突起部は、前記材軸方向に並んで配置された複数の前記連結側突起部を有し、前記平板部側が先端側よりも前記材軸方向に拡幅された形状であり、
前記鋼製部材側突起部は、前記材軸方向に並んで配置された複数の前記鋼製部材側突起部を有し、前記鋼製部材の前記端部側面側が先端側よりも前記材軸方向に拡幅された形状であり、
前記固定部材は、前記連結部材に設けられた孔を貫通するとともに前記鋼製部材側突起部若しくは鋼製部材に設けられた孔に挿通される軸部材、又は、前記鋼製部材に設けられた孔を貫通するとともに前記連結部材に設けられた孔に挿通される軸部材を含み、
前記固定部材は、隣接する前記連結側突起部の間の連結側溝部に前記鋼製部材側突起部が配置された状態、又は、隣接した前記鋼製部材側突起部の間の鋼製部材側溝部に前記連結側突起部が配置された状態の少なくとも何れかで前記連結部材を前記鋼製部材側へ押し当てる請求項1に記載の鋼製部材の縦継構造。 - 前記軸部材は、ねじ切りされた前記鋼製部材側突起部の孔又は前記連結側突起部の孔に螺合されるボルト、又は、前記連結部材及び前記鋼製部材を貫通してナットに螺合されるボルトである請求項8に記載の鋼製部材の縦継構造。
- 前記鋼製部材側溝部の最小溝幅c2aが、前記連結側突起部の先端における前記材軸方向の突起幅w1b以下である関係、又は、前記連結側溝部の最小溝幅c2bが、前記鋼製部材側突起部の先端における前記材軸方向の突起幅w1a以下である関係の少なくとも何れかの関係を満足する請求項8又は請求項9に記載の鋼製部材の縦継構造。
- 前記連結側突起部及び前記鋼製部材側突起部は、前記連結側突起部における前記境界側の面と前記鋼製部材側突起部における前記境界から離れた側の面、又は、前記連結側突起部における前記境界から離れた側の面と前記鋼製部材側突起部における前記境界側の面との少なくとも何れかが略平行である請求項1又は請求項8から請求項10の何れか1項に記載の鋼製部材の縦継構造。
- 前記連結側突起部及び前記鋼製部材側突起部は、突出方向先端側の角部が面取りされた形状である請求項1から請求項11の何れか1項に記載の鋼製部材の縦継構造。
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CN201780045359.2A CN109477321A (zh) | 2016-08-08 | 2017-08-07 | 钢制部件的纵向连接构造 |
KR1020187037028A KR20190005233A (ko) | 2016-08-08 | 2017-08-07 | 강제 부재의 수직 조인트 구조 |
JP2018533470A JP6524450B2 (ja) | 2016-08-08 | 2017-08-07 | 鋼製部材の縦継構造 |
AU2017308325A AU2017308325B2 (en) | 2016-08-08 | 2017-08-07 | Steel member vertical joint structure |
SG11201900134UA SG11201900134UA (en) | 2016-08-08 | 2017-08-07 | Steel member vertical joint structure |
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JPH06101271A (ja) * | 1992-09-18 | 1994-04-12 | Takenaka Komuten Co Ltd | 鉄骨梁の継手工法および継手構造 |
JP2001020392A (ja) * | 1999-07-07 | 2001-01-23 | Shimizu Corp | 構造部材の接合構造 |
JP2011038288A (ja) * | 2009-08-10 | 2011-02-24 | Nippon Steel Corp | 鋼矢板の継手構造および鋼矢板壁構造 |
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DE2459164C3 (de) * | 1974-12-14 | 1985-01-24 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Dinitroanthrachinongemischen, die einen hohen Gehalt an 1,5- und 1,8-Dinitroverbindungen aufweisen |
JPS6153915A (ja) * | 1984-08-22 | 1986-03-18 | Marufuji Shiitopairu Kk | 土止材の打下げ工法 |
TWM278058U (en) * | 2005-06-01 | 2005-10-11 | Ching-Yuan Lin | LED lamp |
JP5413541B2 (ja) * | 2011-07-14 | 2014-02-12 | 新日鐵住金株式会社 | 組合せ鋼矢板、地中連続壁、及び組合せ鋼矢板の再利用方法 |
GB2521837A (en) * | 2014-01-02 | 2015-07-08 | Saint Gobain Placo Sas | Connector |
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JPH06101271A (ja) * | 1992-09-18 | 1994-04-12 | Takenaka Komuten Co Ltd | 鉄骨梁の継手工法および継手構造 |
JP2001020392A (ja) * | 1999-07-07 | 2001-01-23 | Shimizu Corp | 構造部材の接合構造 |
JP2011038288A (ja) * | 2009-08-10 | 2011-02-24 | Nippon Steel Corp | 鋼矢板の継手構造および鋼矢板壁構造 |
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AU2017308325B2 (en) | 2019-09-12 |
CN109477321A (zh) | 2019-03-15 |
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TW201809405A (zh) | 2018-03-16 |
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