JP4641161B2 - Joining structure of longitudinal members - Google Patents

Description

  The present invention relates to a joining structure of longitudinal members arranged, for example, at the positions of inter-columns between columns.

  A building normally includes columns and beams. For example, a column vertical member may be disposed between columns arranged in the horizontal direction. Such a longitudinal member is in a complicated stress state in which axial force and shearing force are applied. Therefore, by transmitting only the shearing force without transmitting the axial force, the stress state of the longitudinal member is simplified, and the collapse mechanism at the end can be made a clearer structural framework.

  As a method for joining the longitudinal members that resist only the shearing force in this way, for example, there is the one shown in FIG. The longitudinal member 50 includes an upper member 51 made of H-shaped steel and a lower member 52 also made of H-shaped steel. The upper end part of the upper member 51 and the lower end part of the lower member 52 are each fixed to a beam (not shown). The upper member 51 and the lower member 52 are spaced apart from each other, and a plurality of bolt through holes (not shown) are formed in the lower end portion of the rib of the upper member 51 and the upper end portion of the rib of the lower member 52, respectively. Yes.

  A connection plate 53 is disposed on the rib surfaces of the upper member 51 and the lower member 52 so as to cover these bolt through holes. In the connection plate 53, a long hole 54 that is long in the height direction is formed at a position corresponding to the bolt through hole in the upper member 51, and the bolt through hole is formed at a position corresponding to the bolt through hole in the lower member 52. Has been. Bolts 55 are respectively attached to the bolt through holes and the long holes 54, and nuts (not shown) are screwed into the bolts 55 from the back side of the ribs. Thus, the ribs of the upper member 51 and the lower member 52 are sandwiched by the heads and nuts of the bolts 55 to form a longitudinal member that is reinforced against shearing force.

  However, in the conventional longitudinal member joining structure shown in FIG. 5, shearing force is transmitted only by joining bolts. For this reason, since the shear force which can be transmitted is small and the size which can be used as the longitudinal member is limited to a small range, there is a problem that it is difficult to apply to the frame structure. Moreover, since the operation | work of the bolt stop for joining an upper member and a lower member is required, there also existed a problem that the operation | work was required by that much.

  Accordingly, an object of the present invention is to enable a framework structure in which a stress state is clarified by transmitting only a large shear force without transmitting an axial force, and simplifying the installation work in the vertical direction. The object is to provide a joining structure for members.

The joining structure of the longitudinal members according to the present invention that solves the above problems is a joining structure of longitudinal members used in a building or a structure, and is a hollow rod-like longitudinal upper member and a hollow rod-like member . and a longitudinal lower members, longitudinal upper with members form a mating recess formed by cutting out one of the upper side of the lower end side and the longitudinal lower members in the vertical lower side in the direction upper member and the longitudinal lower member The fitting convex part which protrudes from the other of the upper end sides is formed, the fitting concave part and the fitting convex part are fitted, and the vertical direction upper member and the vertical direction lower member are separated in the height direction. As a result, the longitudinal force upper member and the longitudinal lower member are in a state in which shearing force is transmitted due to the contact of the laterally facing surfaces of the fitting concave portion and the fitting convex portion. and It is what is.

In the joining structure of the longitudinal members according to the present invention, a fitting recess formed by cutting out one of the lower end side of the hollow rod-like longitudinal upper member and the upper end side of the hollow rod-like longitudinal lower member is formed. In addition , a fitting convex portion is formed that protrudes from the other of the lower end side of the vertical upper member and the upper end side of the vertical lower member , and the fitting concave portion and the fitting convex portion are fitted . Further, the longitudinal upper member and the longitudinal lower member are separated from each other in the height direction so that the axial force is not transmitted, and the longitudinal upper member and the longitudinal lower member are fitted to the fitting recess and the fitting convex. there is a shear force transmitting state by laterally facing surface parts are in contact. For this reason, since it is the structure which does not transmit about an axial force, when transmitting only a shear force mainly, a big shear force can be transmitted. Moreover, since the operation | work of bolting the vertical direction upper member and the vertical direction lower member becomes unnecessary, the attachment operation | work can be simplified.

  Here, either a vertical upper member or a vertical lower member in which a thickening reinforcing plate for thickening and reinforcing the fitting convex portion is attached to the surface of the fitting convex portion, and the fitting concave portion is formed. A thickness-reinforcing plate receiver into which the thickness-reinforcing plate is inserted is attached to the surface of the member, while the fitting recess is thickened and reinforced.

  As described above, the thickening reinforcing plate is attached to the surface of the fitting convex portion, and the thickening reinforcing plate support is attached to the surface of the vertical upper member or the vertical lower member provided with the fitting concave portion. As a result, the joint strength in the longitudinal member can be increased.

  Further, the vertical upper member and the vertical lower member both have a flat cross-sectional rectangle, and the thickening reinforcing plate receiver has four corners of the vertical upper member or the vertical lower member in which the fitting recesses are formed. It can also be set as the aspect which is a corner guide provided in.

  In this way, by using the corner guide as the thickening reinforcing plate receiver, the thickening reinforcing plate can be easily guided between the corner guides. Therefore, it is possible to easily perform the attachment work accordingly.

  According to the column joining structure of the present invention, only a large shear force is transmitted without transmitting an axial force, thereby enabling a framework structure in which the stress state is clear and a simple mounting operation. It can be.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected about the same element and member, and the description may be abbreviate | omitted. FIG. 1 is an exploded perspective view of a longitudinal member having a joint structure according to the first embodiment of the present invention, FIG. 2 is a side view showing a joined state of the longitudinal member, and FIG. 3 is provided with the longitudinal member. It is a side view of the column beam part of a building.

  As shown in FIG. 1, the longitudinal member 1 provided with the joining structure according to the present embodiment includes an upper member 10 that is a longitudinal upper member and a lower member 20 that is a longitudinal lower member. The upper member 10 includes a hollow rod-shaped upper member main body 11 having a rectangular cross section, and a fitting convex portion (shear cotter) 12 is provided at a lower end portion of the upper member main body 11. The fitting convex portion 12 is formed so as to protrude from the lower end sides of the four surfaces of the upper member main body 11. All of these four fitting convex portions 12 have the same shape.

  The lower member 20 includes a hollow rod-shaped lower member main body 21 that also has a rectangular cross section, and a fitting recess (shear cotter) 22 is provided at the upper end of the lower member 20. The fitting recess 22 is formed by cutting out the center part of the upper end side of each of the four surfaces of the lower member main body 21. The width of the fitting recess 22 is set to be substantially the same as that of the fitting protrusion 12 provided on the upper member 10.

  The upper member 10 and the lower member 20 are joined by the fitting convex portion 12 and the fitting concave portion 22 being fitted. As shown in FIG. 2, the fitting convex part 12 has only the front-end | tip part fitted with respect to the fitting recessed part 22, and the base end part is in the separated state. Further, the fitting convex portion 12 is fitted only to the tip portion of the fitting concave portion 22. Therefore, the fitting convex portion 12 and the fitting concave portion 22 are in contact with each other on the side surfaces, and the upper and lower surfaces are in a separated state. Accordingly, the fitting convex portion 12 and the fitting concave portion 22 are separated from each other in the vertical direction so that the axial force of the longitudinal member 1 is not transmitted and the side surfaces are in contact with each other. By doing so, it is in a shear force transmission state in which the shear force is transmitted.

  Further, as shown in FIG. 3, the longitudinal member 1 is arranged like a stud between the pillar 2 and the pillar 3. As shown in FIG. 2, the upper end portion of the upper member 10 in the longitudinal member 1 is fixed to the upper beam 4 disposed above the longitudinal member 1, and the lower end portion of the lower member main body 21 is It is fixed to a lower beam 5 disposed below the directional member 1. Thus, the longitudinal member 1 is fixed to the beams 4 and 5.

  The operation of the longitudinal member joining structure according to this embodiment having the above-described configuration will be described.

  In the longitudinal member 1 according to the present embodiment, the upper member 10 and the lower member 20 are fitted by fitting the fitting convex portion 12 provided on the upper member 10 and the fitting concave portion 22 provided on the lower member 20. And are joined. Here, the fitting convex portion 12 and the fitting concave portion 22 are in contact with each other on the side surface, are separated from each other on the upper and lower surfaces, and are disposed so as to face each other with a gap. Further, the lower surface of the upper member 10 and the upper surface of the lower member 20 are also spaced apart.

  For this reason, transmission of the axial force in the longitudinal member 1 is hardly performed, and transmission of shearing force is mainly performed. Therefore, in the joint portion of the longitudinal member 1, the proof stress can be sufficiently improved against the shearing force.

  Further, the upper member 10 and the lower member 20 in the longitudinal member 1 may be slid so as to lower the upper member 10 relative to the lower member 20. Therefore, the construction procedure can be simplified.

  Next, a second embodiment of the present invention will be described. The longitudinal member 6 according to this embodiment includes an upper member 30 and a lower member 40. The upper member 30 includes an upper member main body 11 and four fitting convex portions 12 similar to those in the first embodiment. A thickening reinforcing plate 31 is attached to the surface of the fitting convex portion 12. The thickening reinforcing plate 31 is a rectangular member having a surface joined to the fitting convex portion 12 having an area approximately twice as large as the surface of the fitting convex portion 12 that contacts the thickening reinforcing plate 31. This part covers the entire surface of the fitting convex part 12, and the remaining half part is arranged facing the surface of the upper member main body 11. By attaching this thickening reinforcement plate 31, the thickness of the fitting convex part 12 is increasing.

  The lower member 40 includes the lower member main body 21 similar to that of the first embodiment, and four fitting recesses 22 are formed. Further, corner guides 41 which are the thickening reinforcing plate receivers of the present invention are attached to the four corners of the surface of the lower member main body 21, respectively. The corner guide 41 extends from the side edge portion of the fitting recess 22 to the side edge portion of the fitting recess 22 located on the adjacent side surface. Therefore, on one surface of the lower member main body 21, the two corner guides 41 and 41 are arranged adjacent to each other with a width substantially the same as the width of the fitting recess 22.

  Further, the thickness of the corner guide 41 is substantially the same as the thickness of the thickening reinforcing plate 31 in the upper member 30. For this reason, the thickening reinforcing plate 31 in the upper member 30 is inserted between the two corner guides 41 arranged on the surface of the lower member main body 21. Further, the corner guide 41 projects upward from the upper surface of the lower member main body 21. Therefore, the upper member main body 11 in the upper member 30 is inserted inside the four corner guides 41. The corner guide 41 also functions as a thickening reinforcing plate, and thickens and strengthens the fitting recess 22. About another point, it has the structure similar to said 1st embodiment.

  The operation of the longitudinal member joining structure according to this embodiment having the above-described configuration will be described.

  In the longitudinal member 6 according to the present embodiment, the fitting convex portion 12 provided in the upper member 10 and the fitting concave portion 22 provided in the lower member 20 are fitted, as in the first embodiment. Thus, the upper member 10 and the lower member 20 are joined. Further, the fitting convex portion 12 and the fitting concave portion 22 are in contact with each other on the side surface, are separated from each other on the upper and lower surfaces, and are disposed so as to face each other with a gap. Further, the lower surface of the upper member 10 and the upper surface of the lower member 20 are also spaced apart. For this reason, transmission of axial force in the longitudinal member 6 is hardly performed, and transmission of shear force is mainly performed. Therefore, the proof stress against the shearing force can be sufficiently improved at the joint portion of the longitudinal member 6.

  Moreover, in this embodiment, when the fitting convex part 12 and the fitting recessed part 22 fit, the thickening reinforcement plate 31 fits between the two corner guides 41 and 41. FIG. As described above, when the thickening reinforcing plate 31 is fitted between the corner guides 41 and 41, the work for joining the upper member 30 and the lower member 40 can be easily performed.

  Further, in the longitudinal member 6 according to the present embodiment, the thickening as a thickening reinforcing plate is provided at positions excluding the surface of the fitting convex portion 12 and the portion where the fitting concave portion 22 is formed in the lower member main body 21. A reinforcing plate 31 and a corner guide 41 are provided. For this reason, the joint part yield strength in the joint part of the longitudinal member 6 can be improved. Further, by increasing the thicknesses of the thickening reinforcing plate 31 and the corner guide 41, the joint strength can be further increased.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in each of the above embodiments, the upper member body and the lower member body having a rectangular cross section are used, but for example, a rod-shaped member having a circular cross section, an elliptical cross section, and a polygonal cross section can be used. Moreover, in the said embodiment, although it is set as the shearing force transmission state of the aspect which a fitting convex part and a fitting recessed part contact, it arrange | positions a shock absorbing material between the side surfaces which a fitting convex part and a fitting recessed part face. Thus, a shearing force transmission state can be formed.

It is a disassembled perspective view of a vertical member provided with the junction structure concerning a first embodiment. It is a side view which shows the joining state of a vertical direction member. It is a side view of the column beam part of the building which provided the vertical direction member. It is a disassembled perspective view of a vertical member provided with the junction structure concerning a second embodiment. It is a side view of the conventional longitudinal direction member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,6 ... Longitudinal member 2, 3 ... Column 4 ... Upper beam 5 ... Lower beam 10, 30 ... Upper member 11 ... Upper member main body 12 ... Fitting convex part 20, 40 ... Lower member 21 ... Lower member main body 22 ... Fitting recess 31 ... Thickening reinforcing plate 41 ... Corner guide (thickening reinforcing plate receiver)

Claims (3)

A joining structure of longitudinal members used for a building or a structure,
A hollow rod-shaped longitudinal upper member and a hollow rod-shaped longitudinal lower member are provided,
While forming a fitting recess formed by cutting out one of the lower end side in the vertical upper member and the upper end side in the vertical lower member,
Forming a fitting convex portion protruding from the other of the lower end side in the longitudinal upper member and the upper end side in the longitudinal lower member ;
The fitting concave portion and the fitting convex portion are fitted,
The vertical direction upper member and the vertical direction lower member are separated from each other in the height direction so as not to transmit axial force,
The longitudinal upper member and said longitudinal lower members, characterized in that there is a shear force transmission state by the fitting recess and laterally facing surface of the fitting convex portion are in contact Bonding structure of longitudinal members. A thickening reinforcing plate for thickening and reinforcing the fitting convex portion is attached to the surface of the fitting convex portion,
A thickening reinforcing plate that reinforces the fitting concave portion and inserts the thickening reinforcing plate on the surface of either the vertical upper member or the vertical lower member in which the fitting concave portion is formed. The joining structure of the longitudinal member of Claim 1 with which the support is attached. The vertical upper member and the vertical lower member both have a rectangular cross section,
The longitudinal member according to claim 2, wherein the thickening reinforcing plate support is a corner guide provided at four corners of the longitudinal upper member or the longitudinal lower member in which the fitting recess is formed. Junction structure.

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