JP6769549B2 - Beam joining method, beam joining structure, and support members - Google Patents

Description

The present disclosure relates to a beam joining method, a beam joining structure, and a support member.

A building structure that forms the skeleton of a building is applied to a building such as a building. Generally, a building structure includes structural members such as girders, columns, or walls, and girders. The beam is made of H-section steel and is joined to the structural member. Here, the beam is a beam in which at least one of the two ends in the length direction is joined to the structural member, and the vertical force due to the weight of the building or the load is supported and transmitted to the structural member. It refers to a member. On the other hand, a girder is a beam member that resists the horizontal force acting on a building due to an earthquake or wind. Further, a member joined to a girder and supporting a force in the vertical direction like the girder is generally called a girder, but the girder in the present invention includes a girder, and when the object of application of the present invention is a girder, the structure The member shall include a beam.

Web bolt joints, which require less processing and are easy to construct on-site, are used for the joints between the beams and structural members. Web bolt joining is a joining in which only the web of the beam is joined to the structural member with bolts, and the upper and lower flanges of the beam are not joined to the structural member. Web bolt joints are pin joints in which only the shearing force of the beam is transmitted to the structural member, and the joint between the beam and the structural member does not have bending moment resistance.

Here, FIG. 23 schematically shows a beam joining structure in which the beam is pin-joined to the structural member, and FIG. 24 shows a beam joining in which the beam is semi-rigidly joined to the structural member. The structure is schematically shown, and FIG. 25 schematically shows a beam joining structure in which the beam is rigidly joined to the structural member. In FIGS. 23 to 25, reference numeral 210 indicates a beam, reference numeral 220 indicates a structural member, and reference numeral 230 indicates a slab. Further, the symbol δ indicates the amount of deflection of the beam, and the symbol M indicates the magnitude of the bending moment of the beam.

The beam supported by the pin joint shown in FIG. 23 has a deflection at the center of the beam as compared with the semi-rigid joint or the beam supported by the rigid joint having the bending moment resistance shown in FIGS. 24 and 25. And the bending moment becomes large. Therefore, the cross section of the beam is increased to suppress the deflection to increase the rigidity of the beam, and the beam having a large cross section or the beam having high strength is required to withstand the bending moment. For this reason, the weight of the beam and the unit price per weight increase, and as a result, it becomes a factor that pushes up the construction cost of the building.

On the other hand, for example, in a distribution warehouse having a large space or a building having an office without a partition, a beam having a long span of more than 10 m may be used in order to reduce the number of pillars and use the space widely. .. When such a long-span beam is used, in order to suppress the deflection of the central part of the beam, the web of the beam is welded or bolted to the structural member at the joint between the beam and the structural member. Rigid joints are used in which the upper and lower flanges of the beam are joined to the structural member by welding or bolts.

In such rigid joining, the number of bolts used increases by the amount of joining the upper and lower flanges of the beam to the structural member, and the installation of scaffolds for welding workers during welding, welding work, and Additional steps such as ultrasonic flaw detection of welds may be required. For this reason, it becomes a factor that the construction cost of the building increases and the construction period becomes long.

Therefore, in order to solve the above problems, in the beam joining structure disclosed in Non-Patent Document 1, a contact plate is inserted between the lower flange of the beam and the structural member (column). Further, the upper flange of the beam and the slab provided around the structural member are joined by a shear connector. Then, the compressive force of the beam is transmitted to the structural member via the contact plate, and the tensile force from the upper flange of the beam is transmitted to the structural member via the reinforcing bar arranged on the slab. , Bending moment resistance is applied to the joint between the beam and the structural member. This is a member in which the beam supports the force in the vertical direction, and when the joint between the beam and the column or other beam has rotational resistance, the tensile force is applied to the upper flange of the beam near the joint. It is established under the condition that a compressive force acts on the lower flange.

According to this beam joining structure, the deflection and bending moment of the central portion of the beam can be suppressed as compared with the pin joining in which only the web of the beam is joined to the structural member with bolts. Moreover, compared to rigid joining in which the web of the beam is welded or bolted to the structural member and the upper and lower flanges of the beam are welded or bolted to the structural member, the beam and the structural member are joined. Since the reinforcement of the part can be easily performed, the increase in the process and cost can be minimized.

In addition, Patent Document 1 discloses a technique relating to a method of joining a beam and a steel pipe column.

"Eurocode 4: Design of composite steel and concrete structures -Part 1-1: General rules and rules for buildings" EUROPEAN COMMITTEE FOR STANDARDIZATION, December 2004, p.90 Japanese Patent Application Laid-Open No. 7-11706

In the beam joint structure in which the beam is joined to the structural member, it is considered that the width of the gap between the lower flange of the beam and the structural member varies due to the variation in the installation of the beam and the structural member. .. Therefore, in the beam joining structure described in Non-Patent Document 1, when the width of the contact plate is narrower than the gap between the lower flange of the beam and the structural member, the contact plate cannot be press-fitted into the gap. There is a problem that the compressive force from the lower flange of the beam cannot be transmitted to the structural member.

Here, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the gap is required so that the compressive force from the lower flange of the beam can be transmitted to the structural member. It is conceivable to prepare a plurality of contact plates having different widths in consideration of the variation in the above. However, in this case, there is a problem that the cost increases due to material loss and construction labor.

The present disclosure has been made in view of the above problems, and even if the width of the gap between the lower flange of the beam and the structural member varies, the lower flange of the beam can be suppressed while suppressing an increase in cost. The purpose is to enable the compression force from the beam to be transmitted to the structural member.

In the beam joining method according to the first aspect of the present disclosure, the gap is formed in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A joining step of joining the beam to the structural member on the upper side, and a first wedge member having an obliquely upward first inclined surface facing the structural member in the horizontal direction are inserted into the gap to the lower side. In the fixing step of fixing to the flange, the second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member with the first inclined surface to move the second wedge member downward. A press-fitting step of press-fitting between the structural member and the first wedge member is provided.

According to the beam joining method according to the first aspect of the present disclosure, when the second wedge member moves downward while the second inclined surface of the second wedge member is in sliding contact with the first inclined surface of the first wedge member. The contact area between the second inclined surface and the first inclined surface expands downward. As a result, the second wedge member gradually moves toward the structural member side, and the widths of the first wedge member and the second wedge member are expanded. Therefore, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the first wedge member and the second wedge member can be adjusted to the width of this gap, so that the width of the gap can be adjusted. The first wedge member and the second wedge member can be arranged between the lower flange of the beam and the structural member with the combined width. As a result, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam is applied to the structural member via the first wedge member and the second wedge member. Can be communicated. Further, since it is not necessary to prepare a plurality of first wedge members and second wedge members having different widths in consideration of the variation in the width of the gap, it is possible to suppress an increase in cost.

In the beam joining method according to the second aspect of the present disclosure, the gap is formed in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A joining step of joining the beam to the structural member on the upper side, and a first wedge member having an obliquely upward first inclined surface facing the lower flange are inserted into the gap and fixed to the structural member. The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member with the first inclined surface, and the second wedge member is moved to the lower side. A press-fitting step of press-fitting between the flange and the first wedge member is provided.

According to the beam joining method according to the second aspect of the present disclosure, when the second wedge member moves downward while the second inclined surface of the second wedge member is in sliding contact with the first inclined surface of the first wedge member. The contact area between the second inclined surface and the first inclined surface expands downward. As a result, the second wedge member gradually moves toward the beam side, and the widths of the first wedge member and the second wedge member are expanded. Therefore, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the first wedge member and the second wedge member can be adjusted to the width of this gap, so that the width of the gap can be adjusted. The first wedge member and the second wedge member can be arranged between the lower flange of the beam and the structural member with the combined width. As a result, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam is applied to the structural member via the first wedge member and the second wedge member. Can be communicated. Further, since it is not necessary to prepare a plurality of first wedge members and second wedge members having different widths in consideration of the variation in the width of the gap, it is possible to suppress an increase in cost.

In the beam joining structure according to the third aspect of the present disclosure, the gap is formed in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A joint portion that joins the beam to the structural member on the upper side, and an obliquely upward first inclined surface that is inserted into the gap and fixed to the lower flange and that faces the structural member in the horizontal direction. A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface, and a second wedge member press-fitted between the structural member and the first wedge member. Be prepared.

According to the beam joining structure according to the third aspect of the present disclosure, when the second wedge member moves downward while the second inclined surface of the second wedge member is in sliding contact with the first inclined surface of the first wedge member. The contact area between the second inclined surface and the first inclined surface expands downward. As a result, the second wedge member gradually moves toward the structural member side, and the widths of the first wedge member and the second wedge member are expanded. Therefore, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the first wedge member and the second wedge member can be adjusted to the width of this gap, so that the width of the gap can be adjusted. The first wedge member and the second wedge member can be arranged between the lower flange of the beam and the structural member with the combined width. As a result, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam is applied to the structural member via the first wedge member and the second wedge member. Can be communicated. Further, since it is not necessary to prepare a plurality of first wedge members and second wedge members having different widths in consideration of the variation in the width of the gap, it is possible to suppress an increase in cost.

In the beam joining structure according to the fourth aspect of the present disclosure, the gap is formed in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A second having a joint portion for joining the beam to the structural member on the upper side, an obliquely upward first inclined surface that is inserted into the gap and fixed to the structural member, and faces the lower flange. It includes a one-wedge member, a second inclined surface that is obliquely downward in contact with the first inclined surface, and a second wedge member that is press-fitted between the lower flange and the first wedge member.

According to the beam joining structure according to the fourth aspect of the present disclosure, when the second wedge member moves downward while the second inclined surface of the second wedge member is in sliding contact with the first inclined surface of the first wedge member. The contact area between the second inclined surface and the first inclined surface expands downward. As a result, the second wedge member gradually moves toward the beam side, and the widths of the first wedge member and the second wedge member are expanded. Therefore, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the first wedge member and the second wedge member can be adjusted to the width of this gap, so that the width of the gap can be adjusted. The first wedge member and the second wedge member can be arranged between the lower flange of the beam and the structural member with the combined width. As a result, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam is applied to the structural member via the first wedge member and the second wedge member. Can be communicated. Further, since it is not necessary to prepare a plurality of first wedge members and second wedge members having different widths in consideration of the variation in the width of the gap, it is possible to suppress an increase in cost.

The support member according to the fifth aspect of the present disclosure is larger than the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A support member used in a beam joining structure having a joint portion for joining the beam to the structural member on the upper side, which is inserted into the gap and fixed to the lower flange and horizontal to the structural member. Between the first wedge member having a first inclined surface facing diagonally upward and the second inclined surface diagonally downward in contact with the first inclined surface, and between the structural member and the first wedge member. It is provided with a second wedge member that is press-fitted into.

According to the support member according to the fifth aspect of the present disclosure, when the second inclined surface of the second wedge member slides in contact with the first inclined surface of the first wedge member and the second wedge member moves downward, the second The contact area between the inclined surface and the first inclined surface expands downward. As a result, the second wedge member gradually moves toward the structural member side, and the widths of the first wedge member and the second wedge member are expanded. Therefore, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the first wedge member and the second wedge member can be adjusted to the width of this gap, so that the width of the gap can be adjusted. The first wedge member and the second wedge member can be arranged between the lower flange of the beam and the structural member with the combined width. As a result, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam is applied to the structural member via the first wedge member and the second wedge member. Can be communicated. Further, since it is not necessary to prepare a plurality of first wedge members and second wedge members having different widths in consideration of the variation in the width of the gap, it is possible to suppress an increase in cost.

The support member according to the sixth aspect of the present disclosure is larger than the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A support member used in a beam joining structure having a joint portion for joining the beam to the structural member on the upper side, which is inserted into the gap and fixed to the structural member, and faces the lower flange. A first wedge member having an obliquely upward first inclined surface and an obliquely downward second inclined surface in contact with the first inclined surface are press-fitted between the lower flange and the first wedge member. It is provided with a second wedge member to be formed.

According to the support member according to the sixth aspect of the present disclosure, when the second inclined surface of the second wedge member slides in contact with the first inclined surface of the first wedge member and the second wedge member moves downward, the second The contact area between the inclined surface and the first inclined surface expands downward. As a result, the second wedge member gradually moves toward the beam side, and the widths of the first wedge member and the second wedge member are expanded. Therefore, even if the width of the gap between the lower flange of the beam and the structural member varies, the width of the first wedge member and the second wedge member can be adjusted to the width of this gap, so that the width of the gap can be adjusted. The first wedge member and the second wedge member can be arranged between the lower flange of the beam and the structural member with the combined width. As a result, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam is applied to the structural member via the first wedge member and the second wedge member. Can be communicated. Further, since it is not necessary to prepare a plurality of first wedge members and second wedge members having different widths in consideration of the variation in the width of the gap, it is possible to suppress an increase in cost.

As described in detail above, according to the present disclosure, even if the width of the gap between the lower flange of the beam and the structural member varies, the compressive force from the lower flange of the beam can be suppressed while suppressing the increase in cost. Can be transmitted to the structural member.

It is a front sectional view which shows the beam joining structure which concerns on 1st Embodiment. It is an enlarged view which shows the support member of FIG. 1 and the peripheral part thereof. It is an exploded perspective view of the support member of FIG. It is a cross-sectional view of F4-F4 line of FIG. It is a figure explaining the beam joining method which concerns on 1st Embodiment. It is a figure explaining the insertion direction of the 2nd wedge member in the press-fitting process of FIG. It is a figure which shows the state that the 2nd wedge member is press-fitted in the press-fitting process of FIG. It is a figure which shows the support member and the press-fitting process which concerns on 2nd Embodiment. It is an exploded perspective view of the support member of FIG. It is a figure which shows the support member which concerns on 3rd Embodiment, the press-fitting process, and welding process. It is a figure which shows the support member which concerns on 4th Embodiment, the fixing process, and the press-fitting process. It is a figure which shows the support member and press-fitting process which concerns on 5th Embodiment. It is a figure which shows the support member and the press-fitting process which concerns on 6th Embodiment. It is a figure which shows the support member and the press-fitting process which concerns on 7th Embodiment. It is a front sectional view which shows the beam joining structure which concerns on 8th Embodiment. It is a front sectional view which shows the beam joining structure which concerns on 9th Embodiment. It is a perspective view which shows the beam joining structure which concerns on tenth embodiment. It is a cross-sectional view of F18-F18 line of FIG. It is a perspective view which shows the beam joint structure which concerns on eleventh embodiment. It is a front sectional view which shows the beam joining structure which concerns on 12th Embodiment. It is a front sectional view which shows the beam joining structure which concerns on 13th Embodiment. It is a front sectional view which shows the beam joining structure which concerns on 14th Embodiment. It is a figure which shows typically the beam joint structure in which a beam is pin-joined to a structural member. It is a figure which shows typically the beam joint structure which the beam is semi-rigidly joined to the structural member. It is a figure which shows typically the beam-beam joint structure in which a beam is rigidly joined to a structural member.

First, the first embodiment of the present disclosure will be described.

The building structure S shown in FIG. 1 is applied to a building such as a building, and includes a girder 20 and a girder 30. The arrow X direction, arrow Y direction, and arrow Z direction shown in each figure are orthogonal to each other. The arrow X direction and the arrow Y direction are parallel to the horizontal direction, respectively. The arrow Z direction corresponds to the vertical direction, and the side pointed to by the arrow Z corresponds to the upper side in the vertical direction.

The girder 20 is an example of a “structural member”. The girder 20 extends in the Y direction of the arrow. The girder 20 is composed of an H-section steel having an upper flange 21, a lower flange 22, and a web 23. When the girder 20 is viewed along the arrow Y direction, the upper flange 21 and the lower flange 22 extend in the arrow X direction, and the web 23 extends in the arrow Z direction. The web 23 connects the central portion of the upper flange 21 in the arrow X direction and the central portion of the lower flange 22 in the arrow X direction.

The beam 30 extends in the direction of arrow X. The beam 30 is composed of an H-section steel having an upper flange 31, a lower flange 32, and a web 33. When the beam 30 is viewed along the arrow X direction, the upper flange 31 and the lower flange 32 extend in the arrow Y direction, and the web 33 extends in the arrow Z direction. The web 33 connects the central portion of the upper flange 31 in the arrow Y direction and the central portion of the lower flange 32 in the arrow Y direction. The height dimension H2 of the girder 30 is substantially the same as the height dimension H1 of the girder 20, and the girder 30 is arranged close to the girder 20 in the arrow X direction.

A beam joining structure 10 (joint structure) is applied to join the beam 30 and the beam 20. That is, the girder 20 includes a shear plate 24. The shear plate 24 is formed in a rectangular shape with the arrow Y direction as the plate thickness direction. The shear plate 24 extends from the web 23 of the girder 20 toward the girder 30. The portion of the shear plate 24 on the beam 30 side is the tip portion 24A of the shear plate 24, and the portion of the shear plate 24 on the web 23 side is the base end portion 24B of the shear plate 24. The base end portion 24B of the shear plate 24 is joined to the upper flange 21, the lower flange 22, and the web 23 of the girder 20 by welding, respectively.

The tip portion 24A of the shear plate 24 projects toward the beam 30 side from the upper flange 21 and the lower flange 22 of the girder 20. The tip portion 24A of the shear plate 24 is arranged between the upper flange 31 and the lower flange 32 of the beam 30, and is superimposed on the portion 33A on the girder 20 side of the web 33 of the beam 30 in the arrow Y direction. ing. A plurality of through holes 25 penetrating in the arrow Y direction are formed in the tip portion 24A of the shear plate 24. The plurality of through holes 25 are arranged in the Z direction of the arrow. A plurality of through holes 35 penetrating in the arrow Y direction are formed in the portion 33A on the girder 20 side of the web 33 of the girder 30. The plurality of through holes 35 are formed at positions consistent with the plurality of through holes 25 formed in the shear plate 24.

A fastening member 11 having bolts and nuts is used for joining the shear plate 24 and the web 33 of the beam 30. That is, the shear plate 24 and the web 33 are joined by inserting the bolt of the fastening member 11 into the through holes 25 and 35 and screwing the nut of the fastening member 11 into the tip of the bolt. The joint portion between the shear plate 24 and the web 33 is a joint portion 12.

In a state where the shear plate 24 and the web 33 are joined at the joint portion 12, the upper flange 21 and the upper flange 31 face each other in the arrow X direction with a gap 41 in the arrow X direction. Similarly, the lower flange 22 and the lower flange 32 face each other in the arrow X direction with a gap 42 in the arrow X direction. The length of the shear plate 24 in the arrow X direction and the positions of the plurality of through holes 25 and 35 in the arrow X direction are set so that the gaps 41 and 42 in the arrow X direction are formed in this way. The joint portion 12 between the shear plate 24 and the web 33 is located below the upper gap 41 and above the lower gap 42.

A slab (for example, a concrete floor slab) is provided on the upper flange 21 of the girder 20 and the upper flange 31 of the girder 30. In FIG. 1, the illustration of the slab is omitted. This slab is joined to the girder 20 and the girder 30 by a shear connector provided on the upper flange 21 of the girder 20 and the upper flange 31 of the girder 30. An example in which the slab is provided on the upper flange 21 of the girder 20 and the upper flange 31 of the girder 30 is described in the eighth and ninth embodiments (see FIGS. 15 and 16) described later.

A support member 50 (reinforcing member) is arranged in the gap 42 between the lower flange 22 and the lower flange 32. The support member 50 includes a first wedge member 60 and a second wedge member 70. The first wedge member 60 and the second wedge member 70 are made of, for example, a steel material or a carbon fiber reinforced plastic. The first wedge member 60 is inserted into the gap 42 and is fixed to the lower flange 32. The second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60.

As shown enlarged in FIG. 2, the first wedge member 60 is formed with a groove 61 extending in the Y direction of the arrow. The groove 61 is open to the surface 62 on the lower flange 32 side of the first wedge member 60 and is open to the side surfaces 63 on both sides of the first wedge member 60 in the arrow Y direction. The first wedge member 60 is fixed to the lower flange 32 by inserting the end 32A of the lower flange 32 into the groove 61. On the side of the second wedge member 70 of the first wedge member 60, an obliquely upward first inclined surface 64 is formed. The first inclined surface 64 faces the end surface 22A1 of the lower flange 22 in the direction of arrow X via the second wedge member 70.

A downward first stepped surface 65 is formed on the first inclined surface 64. The first step surface 65 is an example of the "first guide surface". The length (width) of the first stepped surface 65 in the arrow X direction is, for example, 5 to 20 mm. The upper side of the first inclined surface 64 above the first stepped surface 65 is formed as an upper inclined surface 64A, and the lower side of the first inclined surface 64 below the first stepped surface 65 is formed as a lower inclined surface 64B. Has been done. The inclination angle theta _Z for the Z-direction of the upper inclined surface 64A and the lower inclined surface 64B are the same. The inclination angle θ _Z is, for example, 5 to 30 °, preferably 10 to 15 °.

The surface 72 on the lower flange 22 side of the second wedge member 70 is a flat surface having no groove or the like, and extends in the direction of arrow Z. On the side of the first wedge member 60 of the second wedge member 70, a second inclined surface 74 facing diagonally downward is formed. An upward second stepped surface 75 is formed on the second inclined surface 74. The second stepped surface 75 is an example of a “second guide surface”. The second step surface 75 is locked to the first step surface 65 from below, whereby the second wedge member 70 is prevented from coming off.

The upper side of the second inclined surface 74 above the second step surface 75 is formed as the upper inclined surface 74A, and the lower side of the second inclined surface 74 below the second step surface 75 is formed as the lower inclined surface 74B. Has been done. The inclination angles of the upper inclined surface 74A and the lower inclined surface 74B with respect to the arrow Z direction are the same. Further, the inclination angles of the upper inclined surface 74A and the lower inclined surface 74B with respect to the arrow Z direction are the same as the inclination angles θ _Z of the upper inclined surface 64A and the lower inclined surface 64B of the first wedge member 60 with respect to the arrow Z direction. Is.

As described above, the second wedge member 70 is press-fitted between the lower flange 22 of the girder 20 and the first wedge member 60. As a result, the first wedge member 60 is pressed toward the lower flange 32 by the second wedge member 70, and the bottom surface 61A of the groove 61 is in contact with the end surface 32A1 of the lower flange 32 in a pressed state. Further, the upper inclined surface 74A and the lower inclined surface 74B of the second inclined surface 74 are in contact with the upper inclined surface 64A and the lower inclined surface 64B of the first inclined surface 64 in a pressed state, respectively, in the second wedge member 70. The surface 72 on the lower flange 22 side is in contact with the end surface 22A1 of the lower flange 22 in a pressed state.

As shown in FIG. 3, the first step surface 65 and the second step surface 75 extend in the Y direction of the arrow. The first stepped surface 65 and the second stepped surface 75 are inclined in the direction of the arrow Y so as to go downward as the arrow Y points to the side. The inclination angles θ _Y of the first step surface 65 and the second step surface 75 with respect to the arrow Y direction are the same. In FIG. 3, the arrow Y direction corresponds to the width direction of the beam 30 (see FIGS. 1 and 2), and the side opposite to the side pointed by the arrow Y corresponds to one side in the width direction of the beam 30. The side pointed to by Y corresponds to the other side in the width direction of the beam 30.

As shown in FIG. 4, a pair of support members 50A and 50B are arranged in the gap 42 between the lower flange 22 and the lower flange 32. The pair of support members 50A and 50B are arranged on both sides in the arrow Y direction sandwiching the shear plate 24 and the web 33, respectively. The pair of support members 50A and 50B are formed symmetrically in the arrow Y direction. The above description (see FIGS. 1 to 3) is a description of one support member 50A.

Subsequently, the beam joining method according to the first embodiment will be described.

As shown in FIG. 5, the beam joining method according to the first embodiment includes a joining step A, a fixing step B, and a press-fitting step C.

In the joining step A, the beam 30 is arranged close to the beam 20 in the direction of arrow X. At this time, the tip portion 24A of the shear plate 24 is arranged between the upper flange 31 and the lower flange 32 of the beam 30, and overlaps the portion 33A on the girder 20 side of the web 33 of the beam 30 in the arrow Y direction. Will be done. Further, the plurality of through holes 25 formed in the shear plate 24 are aligned with the plurality of through holes 35 formed in the web 33 of the beam 30. Then, the shear plate 24 and the web 33 are joined by a fastening member 11 having bolts and nuts. That is, the bolt of the fastening member 11 is inserted into the through holes 25 and 35, and the nut of the fastening member 11 is screwed into the tip of the bolt, so that the shear plate 24 and the web 33 are joined at the joint portion 12. Be joined.

In the state where the shear plate 24 and the web 33 are joined at the joint portion 12 in this way, a gap 41 in the arrow X direction is formed between the upper flange 21 and the upper flange 31, and the lower flange 22 and the lower flange are formed. A gap 42 in the direction of arrow X is formed between the 32 and the 32. As described above, in the joining step A, the beam 30 is larger than the gap 42 in a state where the gap 42 in the arrow X direction is generated between the lower flange 32 of the beam 30 and the lower flange 22 of the girder 20. It is joined to the girder 20 at the upper joint portion 12.

In the fixing step B, the first wedge member 60 is inserted into the gap 42, and the end portion 32A of the lower flange 32 formed in the beam 30 is inserted into the groove 61 of the first wedge member 60. , The first wedge member 60 is fixed to the lower flange 32. In this state, the diagonally upward first inclined surface 64 faces the end surface 22A1 of the lower flange 22 formed on the girder 20 with a gap in the direction of arrow X.

In the press-fitting step C, the second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60. At this time, as shown in FIG. 6, the second wedge member 70 of one of the support members 50A is inserted into the gap between the lower flange 22 and the first wedge member 60 toward the side indicated by the arrow Y. Wedge. On the other hand, the second wedge member 70 of the other support member 50B is inserted into the gap between the lower flange 22 and the first wedge member 60 toward the side opposite to the side indicated by the arrow Y. The pair of support members 50A and 50B are formed symmetrically in the arrow Y direction as described above. Hereinafter, the pair of support members 50A will be described, and the description of the other support member 50B will be omitted.

As shown in FIG. 7, the second wedge member 70 is inserted into the gap between the lower flange 22 and the first wedge member 60 toward the side indicated by the arrow Y. At this time, the second step surface 75 is located below the first step surface 65 and is in sliding contact with the first step surface 65. The upper figure of FIG. 7 shows the initial stage of inserting the second wedge member 70. At the initial stage of inserting the second wedge member 70, one end of the first step surface 65 (the end opposite to the side indicated by the arrow Y) and one end of the second step surface 75 (the end on the side indicated by the arrow Y). The portion) is in contact with the second wedge member 70, and the amount of insertion into the lower side of the second wedge member 70 is small.

The lower figure of FIG. 7 shows a state in which the press-fitting of the second wedge member 70 is completed. As shown in the upper to lower views of FIG. 7, when the second wedge member 70 is inserted toward the side indicated by the arrow Y, the second step surface 75 is in sliding contact with the first step surface 65. , The second wedge member 70 moves downward. Further, when the second wedge member 70 moves downward, the contact area between the second inclined surface 74 and the first inclined surface 64 expands downward, so that the second wedge member 70 gradually moves toward the lower flange 22 side. As it moves, the surface 72 on the lower flange 22 side of the second wedge member 70 comes into contact with the end surface 22A1 of the lower flange 22.

Then, from this state, when the second wedge member 70 is pushed toward the side indicated by the arrow Y, the second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60. Further, in this state, the second step surface 75 is locked to the first step surface 65 from below, so that the second wedge member 70 is prevented from coming off. In the first embodiment, the beam 30 is fixed to the beam 20 in the above manner.

Subsequently, the operation and effect of the first embodiment will be described.

As described in detail above, according to the first embodiment, the first step surface 65 and the second step surface 75 formed on the first wedge member 60 and the second wedge member 70 are inclined with respect to the arrow Y direction. ing. Then, when the second wedge member 70 is inserted into the gap between the lower flange 22 and the first wedge member 60 along the arrow Y direction, the second step surface 75 is in sliding contact with the first step surface 65. As a result, the second wedge member 70 moves downward. Further, the first inclined surface 64 and the second inclined surface 74 formed on the first wedge member 60 and the second wedge member 70 are inclined with respect to the arrow Z direction. Then, when the second wedge member 70 moves downward, the second inclined surface 74 is in sliding contact with the first inclined surface 64, so that the second wedge member 70 gradually moves to the girder 20 side. The width of the first wedge member 60 and the second wedge member 70 (that is, the width of the support member 50) is increased.

Therefore, even if the width W of the gap 42 between the lower flange 22 and the lower flange 32 varies, the widths of the first wedge member 60 and the second wedge member 70 can be adjusted to the width W of the gap 42. Therefore, the first wedge member 60 and the second wedge member 70 can be arranged between the lower flange 22 and the lower flange 32 with a width that matches the width W of the gap 42. As a result, even if the width W of the gap 42 varies, the compressive force from the lower flange 32 of the beam 30 can be transmitted to the lower flange 22 of the girder 20 via the first wedge member 60 and the second wedge member 70. .. Further, since it is not necessary to prepare a plurality of first wedge members 60 and second wedge members 70 having different widths in consideration of the variation in the width W of the gap 42, it is possible to suppress an increase in cost.

Moreover, according to the first embodiment, the second wedge member 70 is inserted into the gap between the lower flange 22 and the first wedge member 60 along the arrow Y direction, and the second step surface 75 is the first step. The second wedge member 70 moves downward by being slidably contacted with the surface 65. Therefore, for example, even if there is no space for inserting the second wedge member 70 along the arrow Z direction on the upper side and the lower side of the gap between the lower flange 22 and the first wedge member 60, the second wedge member 70 is not provided. The member 70 can be inserted into the gap between the lower flange 22 and the first wedge member 60.

Further, according to the first embodiment, the second stepped surface 75 is locked to the first stepped surface 65 from below. Therefore, it is possible to prevent the second wedge member 70 from coming off upward.

Next, a second embodiment of the present disclosure will be described.

In the second embodiment shown in FIG. 8, the configurations of the first wedge member 60 and the second wedge member 70 are changed as follows with respect to the above-mentioned first embodiment (see FIG. 2). That is, a plurality of first stepped surfaces 65 are formed on the first inclined surface 64. The plurality of first stepped surfaces 65 are formed at intervals from the upper side to the lower side of the first inclined surface 64. Similarly, a plurality of second stepped surfaces 75 are formed on the second inclined surface 74. The plurality of second stepped surfaces 75 are formed at intervals from the upper side to the lower side of the second inclined surface 74.

As shown in FIG. 9, the first step surface 65 and the second step surface 75 extend in the arrow Y direction, and the first wedge member 60 and the second wedge member 70 have a constant cross section in the arrow Y direction. It is formed. In addition, in FIGS. 8 and 9, the sizes of the first stepped surface 65 and the second stepped surface 75 are exaggerated. The length (width) of the first stepped surface 65 and the second stepped surface 75 in the arrow X direction is, for example, 1 to 2 mm.

Further, as shown in FIG. 8, in the second embodiment, the press-fitting step C is modified as follows with respect to the above-mentioned first embodiment (see FIGS. 5 to 7). That is, in the press-fitting step C, the second wedge member 70 is inserted from above into the gap between the lower flange 22 and the first wedge member 60. At this time, the second wedge member 70 is moved downward while the second inclined surface 74 is in sliding contact with the first inclined surface 64. When the second wedge member 70 moves downward, the contact area between the second inclined surface 74 and the first inclined surface 64 expands downward, so that the second wedge member 70 gradually moves toward the lower flange 22 side. , The surface 72 on the lower flange 22 side of the second wedge member 70 comes into contact with the end surface 22A1 of the lower flange 22.

From this state, when the second wedge member 70 is pushed downward, each second step surface 75 gets over one or a plurality of first step surfaces 65 according to the pushing amount of the second wedge member 70, and the second The wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60. Further, in this state, the second wedge member 70 is prevented from coming off by locking the plurality of second step surfaces 75 to the plurality of first step surfaces 65 from below. In the first embodiment, the beam 30 is fixed to the beam 20 in the above manner.

Also in this second embodiment, when the second wedge member 70 moves downward, the second inclined surface 74 is in sliding contact with the first inclined surface 64, so that the second wedge member 70 gradually becomes a girder. Moving to the 20 side, the width of the first wedge member 60 and the second wedge member 70 (that is, the width of the support member 50) is expanded.

Therefore, even if the width W of the gap 42 between the lower flange 22 and the lower flange 32 varies, the widths of the first wedge member 60 and the second wedge member 70 can be adjusted to the width W of the gap 42. Therefore, the first wedge member 60 and the second wedge member 70 can be arranged between the lower flange 22 and the lower flange 32 with a width that matches the width W of the gap 42. As a result, even if the width W of the gap 42 varies, the compressive force from the lower flange 32 of the beam 30 can be transmitted to the lower flange 22 of the girder 20 via the first wedge member 60 and the second wedge member 70. .. Further, since it is not necessary to prepare a plurality of first wedge members 60 and second wedge members 70 having different widths in consideration of the variation in the width W of the gap 42, it is possible to suppress an increase in cost.

Further, according to the second embodiment, the plurality of second stepped surfaces 75 are locked to the plurality of first stepped surfaces 65 from below. Therefore, it is possible to prevent the second wedge member 70 from coming off upward.

Next, a third embodiment of the present disclosure will be described.

In the third embodiment shown in FIG. 10, a welded portion 81 for fixing the upper portion of the first wedge member 60 and the upper portion of the second wedge member 70 is added to the above-mentioned second embodiment (see FIG. 8). ing. Further, in the third embodiment, the welding step D is added after the press-fitting step C with the addition of the welding portion 81. In the welding step D, the upper portion of the first wedge member 60 and the upper portion of the second wedge member 70 are fixed by the welded portion 81.

According to this third embodiment, in addition to the actions and effects of the second embodiment, the upper portion of the first wedge member 60 and the upper portion of the second wedge member 70 are fixed by the welded portion 81, so that the second wedge member It is possible to more effectively prevent the 70 from coming off upward.

In the third embodiment, the welded portion 81 may be provided at a portion other than the upper portion of the first wedge member 60 and the second wedge member 70.

Further, the welded portion 81 in the third embodiment may be applied to the first wedge member 60 and the second wedge member 70 in the first embodiment.

Next, a fourth embodiment of the present disclosure will be described.

In the fourth embodiment shown in FIG. 11, the configurations of the first wedge member 60 and the second wedge member 70 are changed as follows with respect to the above-mentioned first embodiment (see FIG. 2). That is, the surface 62 on the lower flange 32 side of the first wedge member 60 is a flat surface having no groove or the like and extends in the direction of arrow Z. The surface 62 on the lower flange 32 side of the first wedge member 60 is fixed to the end 32A of the lower flange 32 on the upper side and the lower side of the lower flange 32 by a welded portion 82. Further, the first inclined surface 64 of the first wedge member 60 and the second inclined surface 74 of the second wedge member 70 are each formed by a flat surface having no step or the like.

Further, in the fourth embodiment, the fixing step B and the press-fitting step C are changed as follows with respect to the above-mentioned first embodiment (see FIGS. 5 to 7). That is, in the fixing step B, the first wedge member 60 is inserted into the gap 42, and the surface 62 on the lower flange 32 side of the first wedge member 60 is brought into contact with the end surface 32A1 of the lower flange 32. Further, in this state, the surface 62 on the lower flange 32 side of the first wedge member 60 is fixed to the end 32A of the lower flange 32 on the upper side and the lower side of the lower flange 32 by the welded portion 82.

In the press-fitting step C, the second wedge member 70 is inserted into the gap between the lower flange 22 and the first wedge member 60 from above. At this time, the second wedge member 70 is moved downward while the second inclined surface 74 is in sliding contact with the first inclined surface 64. When the second wedge member 70 moves downward, the contact area between the second inclined surface 74 and the first inclined surface 64 expands downward, so that the second wedge member 70 gradually moves toward the lower flange 22 side. , The surface 72 on the lower flange 22 side of the second wedge member 70 comes into contact with the end surface 22A1 of the lower flange 22. When the second wedge member 70 is pushed downward from this state, the second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60.

Also in this fourth embodiment, when the second wedge member 70 moves downward, the second inclined surface 74 is in sliding contact with the first inclined surface 64, so that the second wedge member 70 gradually becomes a girder. Moving to the 20 side, the width of the first wedge member 60 and the second wedge member 70 (that is, the width of the support member 50) is expanded.

Therefore, even if the width W of the gap 42 between the lower flange 22 and the lower flange 32 varies, the widths of the first wedge member 60 and the second wedge member 70 can be adjusted to the width W of the gap 42. Therefore, the first wedge member 60 and the second wedge member 70 can be arranged between the lower flange 22 and the lower flange 32 with a width that matches the width W of the gap 42. As a result, even if the width W of the gap 42 varies, the compressive force from the lower flange 32 of the beam 30 can be transmitted to the lower flange 22 of the girder 20 via the first wedge member 60 and the second wedge member 70. .. Further, since it is not necessary to prepare a plurality of first wedge members 60 and second wedge members 70 having different widths in consideration of the variation in the width W of the gap 42, it is possible to suppress an increase in cost.

In the fourth embodiment, in order to prevent the second wedge member 70 from coming off, the first inclined surface 64 and the second inclined surface 74 may be formed of rough surfaces, and the first wedge member 60 and The second wedge member 70 may be fixed by welding, adhesion or the like.

Further, the welded portion 82 in the fourth embodiment may be applied to the first wedge member 60 in the first to third embodiments.

Next, a fifth embodiment of the present disclosure will be described.

In the fifth embodiment shown in FIG. 12, the configuration of the support member 50 is changed as follows with respect to the above-mentioned first embodiment (see FIG. 2). That is, the first wedge member 60 is formed with a first groove 66 extending in the arrow Y direction, and the second wedge member 70 is formed with a second groove 76 extending in the arrow Y direction. The first groove 66 is open to the first inclined surface 64 and is open to the side surface 63 of the first wedge member 60. Similarly, the second groove 76 opens to the second inclined surface 74 and opens to the side surface 73 of the second wedge member 70. When the second wedge member 70 is inserted between the lower flange 22 and the first wedge member 60, the upper wall surface 66A of the first groove 66 is above the lower wall surface 76A of the second groove 76. The positions of the first groove 66 and the second groove 76 are set so as to be located.

Further, the support member 50 includes a third wedge member 90. The third wedge member 90 is inserted between the upper wall surface 66A of the first groove 66 and the lower wall surface 76A of the second groove 76. The third wedge member 90 has a first sliding contact surface 91 that is in sliding contact with the upper wall surface 66A and a second sliding contact surface 92 that is in sliding contact with the lower wall surface 76A. The third wedge member 90 is formed in a trapezoidal block shape in which the first sliding contact surface 91 is an inclined surface and the second sliding contact surface 92 is a vertical surface. The first sliding contact surface 91 is inclined with respect to the second sliding contact surface 92, and the width between the first sliding contact surface 91 and the second sliding contact surface 92 is the tip side of the third wedge member 90. It expands from to the rear end side.

Further, in the fifth embodiment, the press-fitting step C is changed as follows with respect to the above-mentioned first embodiment (see FIGS. 5 to 7). That is, the press-fitting step C has a first step C1 to a third step C3. In the first stage C1, the second wedge member 70 is inserted between the lower flange 22 and the first wedge member 60 from above. The second wedge member 70 may be inserted between the lower flange 22 and the first wedge member 60 along the Y direction of the arrow. In the second stage C2, the third wedge member 90 is inserted between the upper wall surface 66A of the first groove 66 and the lower wall surface 76A of the second groove 76.

In the third stage C3, the third wedge member 90 is pushed in. When the third wedge member 90 is pushed in, the first sliding contact surface 91 is in sliding contact with the wall surface 66A, the second sliding contact surface 92 is in sliding contact with the wall surface 76A, and the wall surface 76A is pushed down against the wall surface 66A. .. As a result, the second wedge member 70 moves downward, and the second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60. In this state, the second wedge member 70 is prevented from coming off by interposing the third wedge member 90 between the wall surface 66A and the wall surface 76A.

According to the fifth embodiment, when the third wedge member 90 is inserted between the upper wall surface 66A of the first groove 66 and the lower wall surface 76A of the second groove 76, the wall surface with respect to the wall surface 66A The 76A is pushed down and the second wedge member 70 moves downward. Further, when the second wedge member 70 moves downward, the second inclined surface 74 is in sliding contact with the first inclined surface 64, so that the second wedge member 70 gradually moves to the girder 20 side. The width of the first wedge member 60 and the second wedge member 70 (that is, the width of the support member 50) is increased.

Therefore, even if the width W of the gap 42 between the lower flange 22 and the lower flange 32 varies, the widths of the first wedge member 60 and the second wedge member 70 can be adjusted to the width W of the gap 42. Therefore, the first wedge member 60 and the second wedge member 70 can be arranged between the lower flange 22 and the lower flange 32 with a width that matches the width W of the gap 42. As a result, even if the width W of the gap 42 varies, the compressive force from the lower flange 32 of the beam 30 can be transmitted to the lower flange 22 of the girder 20 via the first wedge member 60 and the second wedge member 70. .. Further, since it is not necessary to prepare a plurality of first wedge members 60 and second wedge members 70 having different widths in consideration of the variation in the width W of the gap 42, it is possible to suppress an increase in cost.

Further, according to the fifth embodiment, the third wedge member 90 is inserted between the upper wall surface 66A of the first groove 66 and the lower wall surface 76A of the second groove 76 along the arrow Y direction. Then, the second wedge member 70 moves downward, and the second wedge member 70 is press-fitted into the gap between the lower flange 22 and the first wedge member 60. Therefore, for example, the space for press-fitting the second wedge member 70 into the gap between the lower flange 22 and the first wedge member 60 is located above the gap between the lower flange 22 and the first wedge member 60. Even if it is not on the lower side, the second wedge member 70 can be press-fitted into the gap between the lower flange 22 and the first wedge member 60.

Further, according to the fifth embodiment, when the second wedge member 70 is press-fitted into the gap between the lower flange 22 and the first wedge member 60, the upper wall surface 66A and the lower wall surface 76A are formed. A third wedge member 90 is interposed between them. Therefore, it is possible to prevent the second wedge member 70 from coming off upward.

Next, the sixth embodiment of the present disclosure will be described.

In the sixth embodiment shown in FIG. 13, the configurations of the first wedge member 60 and the second wedge member 70 are changed as follows with respect to the above-mentioned first embodiment (see FIG. 2). That is, the first inclined surface 64 and the second inclined surface 74 are formed of a flat surface having no steps or grooves. Further, a plurality of convex portions 77 projecting toward the lower flange 22 side are formed on the surface 72 of the second wedge member 70 on the lower flange 22 side. The plurality of convex portions 77 are formed at intervals from the upper side to the lower side of the surface 72 on the lower flange 22 side.

More specifically, the convex portion 77 is formed in a stepped shape having a stepped surface 77A and an inclined surface 77B. The step surface 77A is formed upward. In each convex portion 77, the inclined surface 77B is located below the stepped surface 77A, and is inclined in the direction of arrow Z so as to go toward the second inclined surface 74 side toward the lower side. In FIG. 13, the size of the convex portion 77 is exaggerated. The length of the convex portion 77 in the arrow X direction (width of the stepped surface 77A) is, for example, 1 to 2 mm. In a state where the second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60, the plurality of convex portions 77 bite into the end surface 22A1 of the lower flange 22.

Further, in the sixth embodiment, the press-fitting step C is modified as follows with respect to the above-mentioned first embodiment (see FIGS. 5 to 7). That is, in the press-fitting step C, the second wedge member 70 is inserted into the gap between the lower flange 22 and the first wedge member 60 from above. At this time, the second wedge member 70 is moved downward while the second inclined surface 74 is in sliding contact with the first inclined surface 64.

When the second wedge member 70 moves downward, the contact area between the second inclined surface 74 and the first inclined surface 64 expands downward, so that the second wedge member 70 gradually moves toward the lower flange 22 side. , The surface 72 (plurality of convex portions 77) on the lower flange 22 side of the second wedge member 70 comes into contact with the end surface 22A1 of the lower flange 22. From this state, when the second wedge member 70 is pushed downward, the second wedge member 70 has the lower flange 22 and the first wedge in a state where the plurality of convex portions 77 bite into the end surface 22A1 of the lower flange 22. It is press-fitted between the member 60 and the member 60. In this state, the plurality of convex portions 77 bite into the end surface 22A1 of the lower flange 22, so that the second wedge member 70 is prevented from coming off.

Also in this sixth embodiment, when the second wedge member 70 moves downward, the second inclined surface 74 is in sliding contact with the first inclined surface 64, so that the second wedge member 70 gradually becomes a girder. Moving to the 20 side, the width of the first wedge member 60 and the second wedge member 70 (that is, the width of the support member 50) is expanded.

Therefore, even if the width W of the gap 42 between the lower flange 22 and the lower flange 32 varies, the widths of the first wedge member 60 and the second wedge member 70 can be adjusted to the width W of the gap 42. Therefore, the first wedge member 60 and the second wedge member 70 can be arranged between the lower flange 22 and the lower flange 32 with a width that matches the width W of the gap 42. As a result, even if the width W of the gap 42 varies, the compressive force from the lower flange 32 of the beam 30 can be transmitted to the lower flange 22 of the girder 20 via the first wedge member 60 and the second wedge member 70. .. Further, since it is not necessary to prepare a plurality of first wedge members 60 and second wedge members 70 having different widths in consideration of the variation in the width W of the gap 42, it is possible to suppress an increase in cost.

Further, according to the sixth embodiment, the second wedge member 70 is press-fitted between the lower flange 22 and the first wedge member 60 in a state where the plurality of convex portions 77 bite into the end surface 22A1 of the lower flange 22. Will be done. Therefore, it is possible to prevent the second wedge member 70 from coming off upward.

The plurality of convex portions 77 in the sixth embodiment may be applied to the second wedge member 70 in the first to fifth embodiments.

In addition, the configurations that can be combined among the configurations in the first to sixth embodiments may be combined and implemented as appropriate.

Next, a seventh embodiment of the present disclosure will be described.

In the beam joining structure 100 according to the seventh embodiment shown in FIG. 14, the first wedge member 60 and the second wedge member 70 are compared with the beam joining structure 10 (see FIG. 13) according to the sixth embodiment described above. The arrangement of is changed as follows. That is, the first wedge member 60 is arranged on the girder 20 side, and the second wedge member 70 is arranged on the girder 30 side. The end portion 22A of the lower flange 22 is inserted into the groove 61 of the first wedge member 60, whereby the first wedge member 60 is fixed to the lower flange 22. Further, the second wedge member 70 is press-fitted between the lower flange 32 and the first wedge member 60, and the plurality of convex portions 77 bite into the end surface 32A1 of the lower flange 32.

Further, in the seventh embodiment, the fixing step and the press-fitting step are executed as follows. That is, in the fixing step, the first wedge member 60 is inserted into the gap 42, and the end portion 22A of the lower flange 22 formed on the girder 20 is inserted into the groove 61 of the first wedge member 60. , The first wedge member 60 is fixed to the lower flange 22. Further, in the press-fitting step, the second wedge member 70 is inserted into the gap between the lower flange 32 and the first wedge member 60 from above. At this time, the second wedge member 70 is moved downward while the second inclined surface 74 is in sliding contact with the first inclined surface 64.

When the second wedge member 70 moves downward, the contact area between the second inclined surface 74 and the first inclined surface 64 expands downward, so that the second wedge member 70 gradually moves toward the lower flange 32 side. , The surface 72 (plurality of convex portions 77) on the lower flange 32 side of the second wedge member 70 comes into contact with the end surface 32A1 of the lower flange 32. From this state, when the second wedge member 70 is pushed downward, the second wedge member 70 has the lower flange 32 and the first wedge in a state where the plurality of convex portions 77 bite into the end surface 32A1 of the lower flange 32. It is press-fitted between the member 60 and the member 60. In this state, the plurality of convex portions 77 bite into the end surface 32A1 of the lower flange 32, so that the second wedge member 70 is prevented from coming off.

According to this seventh embodiment, when the second wedge member 70 moves downward, the second inclined surface 74 is in sliding contact with the first inclined surface 64, so that the second wedge member 70 gradually moves. It moves to the beam 30 side, and the width of the first wedge member 60 and the second wedge member 70 (that is, the width of the support member 50) is expanded.

Therefore, even if the width W of the gap 42 between the lower flange 22 and the lower flange 32 varies, the widths of the first wedge member 60 and the second wedge member 70 can be adjusted to the width W of the gap 42. Therefore, the first wedge member 60 and the second wedge member 70 can be arranged between the lower flange 22 and the lower flange 32 with a width that matches the width W of the gap 42. As a result, even if the width W of the gap 42 varies, the compressive force from the lower flange 32 of the beam 30 can be transmitted to the lower flange 22 of the girder 20 via the first wedge member 60 and the second wedge member 70. .. Further, since it is not necessary to prepare a plurality of first wedge members 60 and second wedge members 70 having different widths in consideration of the variation in the width W of the gap 42, it is possible to suppress an increase in cost.

Further, according to the seventh embodiment, the second wedge member 70 is press-fitted between the lower flange 32 and the first wedge member 60 in a state where the plurality of convex portions 77 bite into the end surface 32A1 of the lower flange 32. Will be done. Therefore, it is possible to prevent the second wedge member 70 from coming off upward.

Similarly to the seventh embodiment described above, in the first to fifth embodiments, even if the first wedge member 60 is arranged on the girder 20 side and the second wedge member 70 is arranged on the girder 30 side. Good.

Next, the eighth embodiment of the present disclosure will be described.

In the eighth embodiment shown in FIG. 15, the building structure S includes a girder 20, a pair of girders 30, a plurality of support members 50, and a slab 110. The pair of small beams 30 are arranged on both sides of the large beam 20 in the direction of the arrow X.

A beam joining structure 10 is applied to the joining of each beam 30 and the beam 20. That is, the girder 20 includes a pair of shear plates 24. The pair of shear plates 24 extend from the girder 20 toward each girder 30 side. A beam 30 is joined to each shear plate 24. The configuration of the joint portion 12 between each beam 30 and the shear plate 24 is symmetrical in the direction of arrow X.

The height dimension H2 of the girder 30 is smaller than the height dimension H1 of the girder 20, and the lower flange 32 of each girder 30 is located above the lower flange 22 of the girder 20. There is. A pair of ribs 26 are formed on the web 23 of the girder 20. The pair of ribs 26 extend toward each beam 30 side. The configuration of the girder 20 and the pair of girders 30 other than the above is the same as that of the first embodiment (see FIG. 1) described above.

A gap 42 is formed between the lower flange 32 of each beam 30 and each rib 26. Support members 50 are arranged in each of the gaps 42. As an example, the configuration of the fourth embodiment (see FIG. 11) described above is applied to the first wedge member 60 and the second wedge member 70 of the support member 50.

The slab 110 is provided on the girder 20 and the pair of girders 30. The slab 110 is composed of a plurality of reinforcing bars 112 and concrete 113. The girder 20 and the pair of girders 30 and the concrete 113 are joined by a plurality of shear connectors 114 provided on the upper surfaces of the girder 20 and the pair of girders 30. Further, a plurality of deck plates 115 are provided on the upper surfaces of the girder 20 and the pair of girders 30.

According to the eighth embodiment, since the support member 50 is inserted in the gap 42 between the lower flange 32 of each beam 30 and the rib 26 of the girder 20, the lower side of each beam 30 is formed. The compressive force from the flange 32 can be transmitted to the girder 20. Further, since the upper flange 21 of the girder 20 and the upper flange 31 of the girder 30 and the concrete 113 of the slab 110 are joined by the shear connector 114, the tensile force from the upper flange 31 of the girder 30 is distributed to the slab 110. It can be transmitted to the girder 20 via the reinforcing bar 112.

As a result, the deflection and bending moment of the central portion of the beam 30 can be suppressed as compared with the pin joining in which only the web 33 of the beam 30 is joined to the girder 20 with bolts. Moreover, the beam 30 is compared with the rigid joint in which the web 33 of the beam 30 is joined to the girder 20 by welding or bolting, and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the girder 20 by welding or bolting. Since the joint portion 12 between the beam and the girder 20 can be easily reinforced, an increase in process and cost can be minimized.

In the eighth embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the first, second, third, and first described above are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

Next, a ninth embodiment of the present disclosure will be described.

In the ninth embodiment shown in FIG. 16, the configuration of the beam joining structure 10 is changed as follows with respect to the above-mentioned eighth embodiment (see FIG. 15). That is, the web 33 and the lower flange 32 of each beam 30 are extended in the arrow X direction to a position close to the web 23 of the beam 20, and the lower flange 32 and the web of the beam 20 of each beam 30 are extended. A gap 42 is formed between the 23 and the 23. Support members 50 are arranged in each of the gaps 42. As an example, the configuration of the fourth embodiment (see FIG. 11) described above is applied to the first wedge member 60 and the second wedge member 70 of the support member 50.

According to the ninth embodiment, since the support member 50 is inserted in the gap 42 between the lower flange 32 of each beam 30 and the web 23 of the girder 20, the lower side of each beam 30 is formed. The compressive force from the flange 32 can be transmitted to the girder 20. Further, since the upper flange 21 of the girder 20, the upper flange 31 of the girder 30, the concrete of the slab 110 and 113 are joined by the shear connector 114, the tensile force from the upper flange 31 of the girder 30 is distributed to the slab 110. It can be transmitted to the girder 20 via the reinforcing bar 112.

As a result, the deflection and bending moment of the central portion of the beam 30 can be suppressed as compared with the pin joining in which only the web 33 of the beam 30 is joined to the girder 20 with bolts. Moreover, the beam 30 is compared with the rigid joint in which the web 33 of the beam 30 is joined to the girder 20 by welding or bolting, and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the girder 20 by welding or bolting. Since the joint portion 12 between the beam and the girder 20 can be easily reinforced, an increase in process and cost can be minimized.

In the ninth embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the above-mentioned first, second, third, and third embodiments are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

Next, a tenth embodiment of the present disclosure will be described.

As shown in FIGS. 17 and 18, in the tenth embodiment, the building structure S includes columns 120, a plurality of beams 30, a plurality of support members 50, and a slab 110. The pillar 120 is an example of a “structural member” and extends in the direction of arrow Z. The cross-sectional shape of the column 120 cut in the horizontal direction is a quadrangle, and the plurality of girders 30 extend from the plurality of side surfaces 121 formed on the column 120 in the normal direction of each side surface 121. As shown in FIG. 18, the column 120 is made of reinforced concrete composed of a plurality of reinforcing bars 122 and concrete 123.

A beam joining structure 10 is applied to the joining of each beam 30 and the column 120. That is, a support plate 124 is provided on each side surface 121 of the pillar 120. A plurality of studs 125 extending toward the inside of the pillar 120 are joined to the support plate 124, and the support plate 124 and the concrete 123 are joined by the plurality of studs 125.

As shown in FIG. 17, the support plate 124 is exposed on the side surface 121 of the pillar 120 and forms a part of the side surface 121. A shear plate 24 is joined to each support plate 124. Each shear plate 24 extends from the side surface 121 (support plate 124) in the normal direction of the side surface 121. A beam 30 is joined to each shear plate 24. The structure of the joint portion 12 between each beam 30 and the shear plate 24 is the same. The configuration of the joint portion 12 between each beam 30 and the shear plate 24 is the same as that of the first embodiment (see FIG. 1) described above.

As shown in FIGS. 17 and 18, a gap 42 is formed between the lower flange 32 of the beam 30 and the support plate 124. A support member 50 is arranged in the gap 42. As an example, the configuration of the fourth embodiment (see FIG. 11) described above is applied to the first wedge member 60 and the second wedge member 70 of the support member 50.

The slab 110 is provided on a plurality of beamlets 30. The slab 110 is composed of a plurality of reinforcing bars 112 and concrete 113. In FIG. 17, for convenience, only a part of the plurality of reinforcing bars 112 used for the slab 110 is shown. As shown in FIG. 18, the plurality of beams 30 and the concrete 113 are joined by a plurality of shear connectors 114 provided on the upper surface of each beam 30. Further, the slab 110 and the pillar 120 are connected by a connecting member 116.

According to the tenth embodiment, since the support member 50 is inserted into the gap 42 between the lower flange 32 of each beam 30 and the side surface 121 of the column 120, the lower side of each beam 30 is formed. The compressive force from the flange 32 can be transmitted to the column 120. Further, since the upper flange 31 of the beam 30 and the slab 110 are joined by the shear connector 114 and the slab 110 and the column 120 are connected by the connecting member 116, the tension from the upper flange 31 of the beam 30 The force can be transmitted to the column 120 via the reinforcing bar 112 arranged on the slab 110 and the connecting member 116.

As a result, the deflection and bending moment of the central portion of the beam 30 can be suppressed as compared with the pin joining in which only the web 33 of the beam 30 is joined to the column 120 with bolts. Moreover, the beam 30 is compared with the rigid joining in which the web 33 of the beam 30 is joined to the column 120 by welding or bolting and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the column 120 by welding or bolting. Since the joint portion 12 between the column 120 and the column 120 can be easily reinforced, an increase in the process and cost can be minimized.

In the tenth embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the above-mentioned first, second, third, and first embodiments are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

Next, the eleventh embodiment of the present disclosure will be described.

In the eleventh embodiment shown in FIG. 19, the column 120 is made of steel-framed reinforced concrete composed of steel frame, reinforcing bar, and concrete. In the eleventh embodiment, the configuration of the beam joining structure 10 is changed as follows with respect to the tenth embodiment (see FIGS. 17 and 18) described above. That is, each shear plate 24 projects from the side surface 121 formed of concrete of the pillar 120 in the normal direction of the side surface 121. A beam 30 is joined to each shear plate 24. The configuration of the joint portion 12 between each beam 30 and the shear plate 24 is the same as that of the first embodiment (see FIG. 1) described above.

A gap 42 is formed between the lower flange 32 of the beam 30 and the side surface 121 of the column 120. A support member 50 is arranged in the gap 42. As an example, the configuration of the fourth embodiment (see FIG. 11) described above is applied to the first wedge member 60 and the second wedge member 70 of the support member 50.

Also in this eleventh embodiment, as in the tenth embodiment described above, the deflection and bending of the central portion of the beam 30 are compared with the pin joining in which only the web 33 of the beam 30 is joined to the column 120 with bolts. The moment can be suppressed. Moreover, the beam 30 is compared with the rigid joining in which the web 33 of the beam 30 is joined to the column 120 by welding or bolting and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the column 120 by welding or bolting. Since the joint portion 12 between the column 120 and the column 120 can be easily reinforced, an increase in the process and cost can be minimized.

The column 120 may be made of steel in addition to the reinforced concrete and the steel-framed reinforced concrete.

Further, in the eleventh embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the above-mentioned first, second, third, and third embodiments are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

Next, the twelfth embodiment of the present disclosure will be described.

As shown in FIG. 20, in the twelfth embodiment, the building structure S includes columns 120, walls 130, beams 30, a plurality of support members 50, and slabs 110. The pillar 120 and the wall 130 are examples of "structural members", respectively, and extend in the direction of arrow Z. The beam 30 is arranged between the column 120 and the wall 130 and extends in the direction of arrow X. The column 120 is made of reinforced concrete composed of a plurality of reinforcing bars 122 and concrete 123. Similarly, the wall 130 is also made of reinforced concrete composed of a plurality of reinforcing bars 132 and concrete 133.

The beam joining structure 10 is applied to the joining of the beam 30, the column 120, and the wall 130, respectively. That is, support plates 124 and 134 are provided on the side surface 121 of the pillar 120 and the side surface 131 of the wall 130, respectively. A plurality of studs 125 and 135 are joined to the support plates 124 and 134, respectively. The support plate 124 of the pillar 120 and the concrete 123 are joined by a plurality of studs 125. Similarly, the support plate 134 of the wall 130 and the concrete 133 are joined by a plurality of studs 135.

The support plate 124 of the pillar 120 is exposed from the side surface 121 of the pillar 120 and constitutes a part of the side surface 121 of the pillar 120. Similarly, the support plate 134 of the wall 130 is exposed from the side surface 131 of the wall 130 and forms a part of the side surface 131 of the wall 130. A shear plate 24 is joined to each of the support plates 124 and 134, and one end of a beam 30 is joined to the shear plate 24 provided on the column 120 to the shear plate 24 provided on the wall 130. Is joined to the other end of the beam 30. The structure of the joint portion 12 between the beam 30 and each shear plate 24 is the same. The configuration of the joint portion 12 between the beam 30 and each shear plate 24 is the same as that of the first embodiment (see FIG. 1) described above.

A gap 42 is formed between the lower flange 32 of the beam 30 and the support plates 124 and 134, respectively. Support members 50 are arranged in each of the gaps 42. As an example, the configuration of the fourth embodiment (see FIG. 11) described above is applied to the first wedge member 60 and the second wedge member 70 of the support member 50.

The slab 110 is provided on the beam 30. The slab 110 is composed of a plurality of reinforcing bars 112 and concrete 113. The beam 30 and the concrete 113 are joined by a plurality of shear connectors 114 provided on the upper surface of the beam 30. Further, the slab 110, the pillar 120, and the wall 130 are each connected by a connecting member 116.

According to the twelfth embodiment, since the support member 50 is inserted into the gap 42 between the lower flange 32 of the beam 30 and the pillar 120 and the wall 130, the support member 50 is inserted under the beam 30. The compressive force from the side flange 32 can be transmitted to the pillar 120 and the wall 130. Further, since the upper flange 31 of the beam 30 and the slab 110 are joined by the shear connector 114, and the slab 110, the column 120, and the wall 130 are connected by the connecting member 116, the upper flange 31 of the beam 30 is connected. The tensile force from the slab 110 can be transmitted to the column 120 and the wall 130 via the reinforcing bar 112 and the connecting member 116 arranged on the slab 110.

As a result, the deflection and bending moment of the central portion of the beam 30 can be suppressed as compared with the pin joining in which only the web 33 of the beam 30 is joined to the column 120 and the wall 130 with bolts. Moreover, the web 33 of the beam 30 is joined to the column 120 or the wall 130 by welding or bolting, and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the column 120 or wall 130 by welding or bolting. In comparison, the joint portion 12 between the beam 30 and the column 120 or the wall 130 can be easily reinforced, so that an increase in process and cost can be minimized.

In the twelfth embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the above-mentioned first, second, third, and third embodiments are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

Next, the thirteenth embodiment of the present disclosure will be described.

In the thirteenth embodiment shown in FIG. 21, the building structure S is configured to have a girder 140 instead of the column 120 (see FIG. 20) as compared with the above-mentioned twelfth embodiment. The girder 140 is an example of a “structural member” and extends in the Y direction of the arrow. The girder 140 is made of reinforced concrete composed of a plurality of reinforcing bars 142 and concrete 143.

The beam joining structure 10 is applied to join the beam 30 and the beam 140. That is, a support plate 144 is provided on the side surface 141 of the girder 140. A plurality of studs 145 are joined to the support plate 144. The support plate 144 of the girder 140 and the concrete 143 are joined by a plurality of studs 145. The support plate 144 of the girder 140 is exposed from the side surface 141 of the girder 140 and constitutes a part of the side surface 141 of the girder 140.

A shear plate 24 is joined to the support plate 144, one end of the beam 30 is joined to the shear plate 24 provided on the girder 140, and a beam is joined to the shear plate 24 provided on the wall 130. The other end of 30 is joined. The structure of the joint portion 12 between the beam 30 and each shear plate 24 is the same. The configuration of the joint portion 12 between the beam 30 and each shear plate 24 is the same as that of the first embodiment (see FIG. 1) described above.

A gap 42 is formed between the lower flange 32 of the beam 30 and each of the support plates 134 and 144. Support members 50 are arranged in each of the gaps 42. As an example, the configuration of the fourth embodiment (see FIG. 11) described above is applied to the first wedge member 60 and the second wedge member 70 of the support member 50. The slab 110, the girder 140, and the wall 130 are each connected by a connecting member 116.

According to the thirteenth embodiment, since the support member 50 is inserted into the gap 42 between the lower flange 32 of the beam 30 and the girder 140 and the wall 130, the support member 50 is inserted under the beam 30. The compressive force from the side flange 32 can be transmitted to the girder 140 and the wall 130. Further, the upper flange 31 of the beam 30 and the slab 110 provided between the girder 140 and the wall 130 are joined by a shear connector 114, and the slab 110 and the girder 140 and the wall 130 are connected by a connecting member 116. Therefore, the tensile force from the upper flange 31 of the beam 30 can be transmitted to the beam 140 and the wall 130 via the reinforcing bar 112 and the connecting member 116 arranged on the slab 110.

As a result, the deflection and bending moment of the central portion of the beam 30 can be suppressed as compared with the pin joining in which only the web 33 of the beam 30 is joined to the girder 140 and the wall 130 with bolts. Moreover, the web 33 of the beam 30 is joined to the girder 140 and the wall 130 by welding and bolts, and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the girder 140 and the wall 130 by welding and bolts. In comparison, the joint portion 12 between the small beam 30 and the large beam 140 or the wall 130 can be easily reinforced, so that an increase in process and cost can be minimized.

In the thirteenth embodiment, the girder 140 may be made of steel frame as well as made of reinforced concrete.

Further, in the thirteenth embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the above-mentioned first, second, third, and third embodiments are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

Next, the fourteenth embodiment of the present disclosure will be described.

In the fourteenth embodiment shown in FIG. 22, the beam joining structure 10 is modified as follows with respect to the above-mentioned eighth embodiment (see FIG. 15). That is, welding is used for joining the shear plate 24 provided on the girder 20 and the web 33 of the beam 30, and the edge portion on the tip side of the shear plate 24 is joined to the web 33 by the welded portion 151. Has been done. The fastening member 11 is used for temporary fixing when welding the shear plate 24 and the web 33.

Also in this fourteenth embodiment, as in the eighth embodiment described above, the deflection and bending of the central portion of the beam 30 are compared with the pin joining in which only the web 33 of the beam 30 is joined to the girder 20 with bolts. The moment can be suppressed. Moreover, the beam 30 is compared with the rigid joint in which the web 33 of the beam 30 is joined to the girder 20 by welding or bolting, and the upper flange 31 and the lower flange 32 of the beam 30 are joined to the girder 20 by welding or bolting. Since the joint portion 12 between the beam and the girder 20 can be easily reinforced, an increase in process and cost can be minimized.

In the fourteenth embodiment, the configuration of the fourth embodiment is applied to the first wedge member 60 and the second wedge member 70 as an example, but the above-mentioned first, second, third, and fourth embodiments are applied. The configuration of any of the fifth, sixth, and seventh embodiments may be applied.

In addition, among the configurations in the eighth to fourteenth embodiments, the configurations that can be combined may be appropriately combined and implemented.

The first to fourteenth embodiments of the present disclosure have been described above, but the present disclosure is not limited to the above, and can be implemented by various modifications other than the above within a range not deviating from the gist thereof. Of course there is.

Claims (41)

The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having a first inclined surface diagonally upward facing the structural member in the gap and fixing the first wedge member to the lower flange.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the structural member and the first wedge. The press-fitting process of press-fitting between the members and
Equipped with a,
The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side.
In the press-fitting step, the second wedge member is lowered by sliding the second guide surface against the first guide surface while moving the second wedge member from one side to the other in the width direction of the beam. Move to the side,
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having an obliquely upward first inclined surface facing the lower flange into the gap and fixing the first wedge member to the structural member.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the lower flange and the first. The press-fitting process of press-fitting between the wedge member and
Equipped with a,
The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side.
In the press-fitting step, the second wedge member is lowered by sliding the second guide surface against the first guide surface while moving the second wedge member from one side to the other in the width direction of the beam. Move to the side,
Beam joining method. In the press-fitting step, the second wedge member is prevented from coming off by locking the second guide surface to the first guide surface from below.
The beam joining method according to claim 1 or 2. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having a first inclined surface diagonally upward facing the structural member in the gap and fixing the first wedge member to the lower flange.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the structural member and the first wedge. The press-fitting process of press-fitting between the members and
With
The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
In the press-fitting step, the second wedge member is moved downward by inserting the third wedge member between the upper wall surface of the first groove and the lower wall surface of the second groove.
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having an obliquely upward first inclined surface facing the lower flange into the gap and fixing the first wedge member to the structural member.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the lower flange and the first. The press-fitting process of press-fitting between the wedge member and
With
The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
In the press-fitting step, the second wedge member is moved downward by inserting the third wedge member between the upper wall surface of the first groove and the lower wall surface of the second groove.
Beam joining method. A convex portion protruding toward the structural member is formed on the surface of the second wedge member on the structural member side.
In the press-fitting step, the convex portion is made to bite into the structural member to prevent the second wedge member from coming off.
The beam joining method according to claim 1 or 4 . On the surface of the second wedge member on the lower flange side, a convex portion protruding toward the lower flange is formed.
In the press-fitting step, the convex portion is made to bite into the lower flange to prevent the second wedge member from coming off.
The beam joining method according to claim 2 or 5 . The structural member is a girder made of H-shaped steel.
The lower flange of the girder is located above the lower flange of the girder.
The web of the girder is formed with ribs extending in the horizontal direction to form the gap between the girder and the lower flange of the girder.
The first wedge member and the second wedge member are arranged in the gap between the lower flange of the beam and the rib.
The beam joining method according to any one of claims 1 to 7. The structural member is a girder made of H-shaped steel.
The lower flange of the girder is located above the lower flange of the girder.
The gap is formed between the lower flange of the beam and the web of the girder.
The first wedge member and the second wedge member are arranged in the gap between the lower flange of the beam and the web.
The beam joining method according to any one of claims 1 to 7. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having a first inclined surface diagonally upward facing the structural member in the gap and fixing the first wedge member to the lower flange.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the structural member and the first wedge. The press-fitting process of press-fitting between the members and
With
The structural member is a column made of reinforced concrete or steel-framed reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the column.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having an obliquely upward first inclined surface facing the lower flange into the gap and fixing the first wedge member to the structural member.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the lower flange and the first. The press-fitting process of press-fitting between the wedge member and
With
The structural member is a column made of reinforced concrete or steel-framed reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the column.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having a first inclined surface diagonally upward facing the structural member in the gap and fixing the first wedge member to the lower flange.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the structural member and the first wedge. The press-fitting process of press-fitting between the members and
With
The structural member is a wall made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the wall.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having an obliquely upward first inclined surface facing the lower flange into the gap and fixing the first wedge member to the structural member.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the lower flange and the first. The press-fitting process of press-fitting between the wedge member and
With
The structural member is a wall made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the wall.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having a first inclined surface diagonally upward facing the structural member in the gap and fixing the first wedge member to the lower flange.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the structural member and the first wedge. The press-fitting process of press-fitting between the members and
With
The structural member is a girder made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the beam.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joining method. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. Joining process and
A fixing step of inserting a first wedge member having an obliquely upward first inclined surface facing the lower flange into the gap and fixing the first wedge member to the structural member.
The second wedge member is moved downward while sliding the diagonally downward second inclined surface of the second wedge member against the first inclined surface, and the second wedge member is moved to the lower flange and the first. The press-fitting process of press-fitting between the wedge member and
With
The structural member is a girder made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the beam.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joining method. The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side.
In the press-fitting step, the second wedge member is lowered by sliding the second guide surface against the first guide surface while moving the second wedge member from one side to the other in the width direction of the beam. Move to the side,
The beam joining method according to any one of claims 10 to 15. The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
In the press-fitting step, the second wedge member is moved downward by inserting the third wedge member between the upper wall surface of the first groove and the lower wall surface of the second groove.
The beam joining method according to any one of claims 10 to 15. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the lower flange, and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second guide surface is in contact with the first guide surface.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second guide surface is in contact with the first guide surface.
Beam joint structure. The second guide surface is locked to the first guide surface from below.
The beam joining structure according to claim 18 or 19 . The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the lower flange, and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
A third wedge member is inserted between the upper wall surface of the first groove and the lower wall surface of the second groove.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
A third wedge member is inserted between the upper wall surface of the first groove and the lower wall surface of the second groove.
Beam joint structure. A convex portion protruding toward the structural member is formed on the surface of the second wedge member on the structural member side.
The convex portion bites into the structural member.
The beam joining structure according to claim 18 or 21 . On the surface of the second wedge member on the lower flange side, a convex portion protruding toward the lower flange is formed.
The convex portion bites into the lower flange.
The beam joining structure according to claim 19 or 22 . The structural member is a girder made of H-shaped steel.
The lower flange of the girder is located above the lower flange of the girder.
The web of the girder is formed with ribs extending in the horizontal direction to form the gap between the girder and the lower flange of the girder.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the rib of the beam.
The beam joining structure according to any one of claims 18 to 24. The structural member is a girder made of H-shaped steel.
The lower flange of the girder is located above the lower flange of the girder.
The gap is formed between the lower flange of the beam and the web of the girder.
The first wedge member and the second wedge member are arranged in the gap between the lower flange of the beam and the web.
The beam joining structure according to any one of claims 18 to 24. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the lower flange, and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The structural member is a column made of reinforced concrete or steel-framed reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the column.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The structural member is a column made of reinforced concrete or steel-framed reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the column.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the lower flange and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The structural member is a wall made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the wall.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The structural member is a wall made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the wall.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the lower flange and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The structural member is a girder made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the beam.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joint structure. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. At the joint,
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The structural member is a girder made of reinforced concrete.
The gap is formed between the lower flange of the beam and the side surface of the beam.
The first wedge member and the second wedge member are arranged in the gap between the lower flange and the side surface of the beam.
Beam joint structure. The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second guide surface is in contact with the first guide surface.
The beam joining structure according to any one of claims 27 to 32. The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
A third wedge member is inserted between the upper wall surface of the first groove and the lower wall surface of the second groove.
The beam joining structure according to any one of claims 27 to 32. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A support member used in a beam joint structure having a joint portion.
A first wedge member that is inserted into the gap and fixed to the lower flange and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side and contacts the first guide surface.
Support member. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A support member used in a beam joint structure having a joint portion.
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The first wedge member has a downward first guide surface that inclines downward from one side in the width direction of the beam toward the other side.
The second wedge member has an upward second guide surface that inclines downward from one side in the width direction of the beam toward the other side and contacts the first guide surface.
Support member. The second guide surface is locked to the first guide surface from below.
The support member according to claim 35 or 36. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A support member used in a beam joint structure having a joint portion.
A first wedge member that is inserted into the gap and fixed to the lower flange and has a first inclined surface that is obliquely upward facing the structural member in the horizontal direction.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the structural member and the first wedge member.
With
The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
The support member includes a third wedge member inserted between the upper wall surface of the first groove and the lower wall surface of the second groove.
Support member. The beam is joined to the structural member above the gap in a state where a horizontal gap is formed between the lower flange of the beam made of H-shaped steel extending in the horizontal direction and the structural member. A support member used in a beam joint structure having a joint portion.
A first wedge member that is inserted into the gap and fixed to the structural member and has a first inclined surface that faces diagonally upward and faces the lower flange.
A second wedge member having an obliquely downward second inclined surface in contact with the first inclined surface and press-fitted between the lower flange and the first wedge member.
With
The first wedge member is formed with a first groove that is open to the first inclined surface and is open to the side surface of the first wedge member.
The second wedge member is formed with a second groove that is open to the second inclined surface and is open to the side surface of the second wedge member.
The support member includes a third wedge member inserted between the upper wall surface of the first groove and the lower wall surface of the second groove.
Support member. A convex portion protruding toward the structural member is formed on the surface of the second wedge member on the structural member side.
The support member according to claim 35 or 38. A convex portion protruding toward the lower flange side is formed on the surface of the second wedge member on the lower flange side.
The support member according to claim 36 or 39.