JP3051551U - Column and beam joint structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To join and connect a column and a diaphragm member by fillet welding to obtain the supporting strength of the beam, reduce the number of processing steps, shorten the working time, and greatly reduce the processing cost. Can be. Columns and beams that can be joined and connected to the outer peripheral surface of the column as a rigid body integrating the diaphragm member, disperse the load evenly and do not cause buckling deformation, and can highly support the supporting strength of the beam by the diaphragm member To provide a joint structure. The diaphragm includes a diaphragm portion disposed at a joint portion between a pillar and a beam, and the diaphragm portion includes a plurality of diaphragm members having a fillet weld portion for joining to a pillar. Has a butt joint surface arranged in a butt shape so as to surround the periphery of the column, and includes a connecting plate member 23 which is bolt-connected to the diaphragm members at the butt joint surface.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a joint structure between a column and a beam.

[0002]

[Prior art]

 Heretofore, a beam-through type connection has been frequently used as a joint structure between a column of a square steel pipe and an H-beam. In this beam-through type connection, the column is cut and the beam is joined to each other by passing the beam through the cross-section.First, the diaphragm is butt-welded to the cut surface of the column and the periphery of the diaphragm is The beam flanges are joined by butt welding. Therefore, the welded part is the upper and lower parts with the beam at the center, and the welding shape is also changed to a polygonal shape.Moreover, the welding method itself has to be butt welding because of the need to maintain strength, Therefore, the processing man-hour and the amount of welded wall for processing the joint to be welded are both large, the processing time in factory manufacturing is long, and a skilled technician is required. is there. As shown in FIG. 6, the outer diaphragm 210 is divided into a plurality of pieces without cutting the pillar 200, that is, the outer diaphragms 210, 210 which are divided into two pieces in FIG. A column-through type in which a plurality of beam joints 240 are projected by forming a joint surface 220 between the column 200 and the outer diaphragms 210 and 210 and a mutual joint surface 230 of the outer diaphragms 210 and 210 by butt welding. Connections are also used. This pillar-type connection does not cut the pillar 200, and thus has excellent earthquake resistance.

[0003]

[Problems to be solved by the invention]

 However, even in the through-hole type connection, butt welding is required for joining the outer diaphragms 210 and 210 to the pillar 200 and joining the diaphragms to each other, and the butt welding work requires a high level of technology, so the processing time is long and skilled. Engineers are required and processing and labor costs tend to be relatively high. If the accuracy of the butt welding is low, the outer diaphragm 210 separates from the column 200 and the support of the beam 250 becomes impossible. In addition, when a load of the beam 250 is applied to the outer diaphragm 210, buckling deformation Z is easily generated locally on the upper and lower flanges of the outer diaphragm at the space between the beam joints 240, and the column and the outer diaphragm are in close contact with each other. And the bearing capacity is weakened. In addition, in order to prevent the buckling deformation Z of the outer diaphragm 210, a high-performance steel material must be used for the outer diaphragm, and there is a problem that the manufacturing cost is correspondingly increased.

The present invention has been made in view of the above-mentioned conventional problems, and one object of the present invention is to divide a diaphragm member disposed at a joint between a column and a beam into a plurality of pieces and butt them. The ends are connected by bolts with connecting plate members, and the diaphragm members are joined and connected to the outer peripheral surface of the columns by fillet welding, so that the columns and diaphragm members are joined and connected by fillet welding to reduce the supporting strength of the beam. It does not require skilled welding technology, reduces the number of man-hours required for machining the welding surface, increases the efficiency of welding work, reduces work time, and significantly increases machining costs, including labor costs required for machining. It is an object of the present invention to provide a joint structure between a column and a beam, which can save money. In addition, the diaphragm member can be joined and connected to the outer peripheral surface of the column as a rigid body integrated, and the load applied to the diaphragm member supporting the beam is evenly distributed so that buckling deformation does not occur in the diaphragm member. It is an object of the present invention to provide a joint structure between a column and a beam which can highly support the supporting strength of the beam. In addition, the joint surface between the column and the diaphragm member can be joined and connected by fillet welding, providing a joint structure between the column and the beam that can reduce the processing cost of the joint connection between the column and the beam. It is to be.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the present invention has a diaphragm portion 16 disposed at a joint portion between the column 12 and the beam 14, and the diaphragm portion 16 is used for joining with the column 12. A plurality of diaphragm members 20 having fillet welds 18 are provided, and these diaphragm members 20 are provided so as to surround the periphery of the column 12, and the butt joints in which the diaphragm members 20 are arranged in a butt shape are provided. A connecting plate member 23 which has a surface 22 and is arranged so as to be straddled across the diaphragm members 20 on the butt end side of the butt joint surface 22 and is bolted to the respective diaphragm members 20. In the fillet weld 18, each diaphragm member 20 and the column 12 are joined and connected, and each of the diaphragm members 20 12 so as to encircled the composed integrally bolt connected to the junction structure 10 between the columns and beams formed by the said Tsugiban member 23.

[0006] The diaphragm member may have an abutting portion 40 between the diaphragm members 20 in an intersecting direction that does not extend at least in a direction perpendicular to the longitudinal extension of the column.

Further, the diaphragm member 20 is formed so as to be divided into four parts in a plan view along the diagonal line of the column 12, and each of the diaphragm members 20 has a column contact portion including a fillet weld portion 18 with the column 12. 42 may be provided.

[0008]

[Embodiment of the invention]

 The joint structure between a column and a beam according to the present invention has a diaphragm portion arranged at the joint portion between the column and the beam, and the diaphragm portion has a fillet weld portion for joining with the column. A plurality of diaphragm members having a butt joint surface provided so as to surround the periphery of the column, and these diaphragm members are arranged in a butt shape. And a connecting plate member which is disposed so as to be straddled across the respective diaphragm members and is connected to each of the diaphragm members by bolts. Each of the diaphragm members and the column are joined and connected, and each of the diaphragm members is integrally bolted by the connecting plate member so as to surround the column.

The present invention has a diaphragm portion for joining and connecting a beam made of, for example, an H-shaped steel to a column of a square steel pipe. The diaphragm section includes a plurality of diaphragm members for jointly connecting the beam to the column. The shape and structure of the diaphragm member may be arbitrarily configured.However, when the diaphragm member is arranged so as to surround the column with the center in the center, and when a load is applied to the beam in this state during construction Since the diaphragm members are usually used, it is preferable that the diaphragm members be formed so as to form a substantially complete flat surface by joining the butt surfaces with each other. The shape is not limited to the hexagonal shape deformed as in the embodiment, but may be a pentagon, a quadrangle, or another polygon.

[0010] The shape of the connecting plate member may be any shape. The joining plate member may be disposed on only one of the upper surface side and the lower surface side of the butted edge of the diaphragm, and may be joined by bolts. In short, the diaphragm members are arranged so as to surround the columns, and the diaphragm members are integrally formed as a rigid body, whereby the load applied to one side surface of the quadrangular prism is dispersed throughout the diaphragm portions. In addition, the joint between the column and the diaphragm should be able to secure sufficient strength by fillet welding.

[0011] The diaphragm member may be formed such that the abutting surfaces of the respective diaphragm members are formed in an intersecting direction so as not to be at least perpendicular to the longitudinal extension line of the beam. Two beams may be joined to both sides with the pillar as the center. In this case, the diaphragm member may be divided into two parts. In this case, the abutting surfaces need to be formed so as to intersect the longitudinal extension of the beam. This can help prevent them from buckling easily.

Further, the diaphragm member may be formed so as to be divided into four parts in a plan view along a diagonal line of the column, and each of the diaphragm members may include a column contact portion including a fillet weld portion with the column. . In particular, in the case where a beam is joined to the four sides in a cross shape with a square pillar in the center, the beam is divided into four along the diagonal of the pillar, that is, the center is bisected at each side of the square. By forming the joining surface, a diaphragm joining structure that is most unlikely to cause buckling can be obtained.

[0013]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective explanatory view showing a state in which a beam is connected to a joint structure between a column and a beam according to an embodiment of the present invention. FIG. 2 is an explanatory plan view of a joint structure between a column and a beam. FIG. 3 is an explanatory plan view in which a diaphragm member divided into four parts in a plan view and a connecting plate member for mutually connecting the diaphragm members are arranged on the periphery of the pillar. The joint structure 10 between a pillar and a beam according to the present invention (hereinafter, abbreviated as a joint structure) 10 has a diaphragm portion 16 disposed at a joint portion between a pillar 12 and a beam 14. Is provided with a plurality of diaphragm members 20a, 20b, 20c, 20d having fillet welds 18 for joining with the columns 12. These diaphragm members 20a, 20b, 20c, 20d are provided so as to surround the periphery of the column 12, and the butt joint surfaces 22, in which the diaphragm members 20a, 20b, 20c, 20d are arranged in abutting manner, A joining plate member 23a, which is disposed so as to straddle the two diaphragm members 20 at the butting edge sides of the butt joining surfaces 22 and 22 and is bolted to the respective diaphragm members 20; 23b, 23c, and 23d.

As shown in FIGS. 1 and 2, the column 12 is formed of a rectangular hollow steel pipe, and is positioned at a predetermined height of the column 12, for example, at a height position at which a beam 14 of H-section steel is joined and connected. The diaphragm portion 16 is arranged to connect the beam 14 to the column 12 in the front-rear direction or both side directions in plan view. In the present embodiment, a diaphragm portion 16 for jointly connecting the four beams 14 to the column 12 in a cross shape in a plan view is shown. The diaphragm section 16 includes front and rear diaphragm members 20a and 20b joined and connected to the front and rear surfaces of the column 12 to jointly connect the four beams 14, and left and right diaphragm members joined and connected to the left and right side surfaces of the column 12. It has members 20c and 20d.

As shown in FIG. 1, the beam 14 is formed of an H-shaped steel having upper and lower flanges 14 a and 14 b and a rib 14 c connected to the upper and lower flanges 14 a and 14 b. 3 and 4, the diaphragm portion 16 is composed of four diaphragm members 20a, 20b, 20c, and 20d, and is arranged so as to surround the column 12 from four sides thereof with the column 12 at the center. Each diaphragm member 20 has upper and lower flanges 24a, 24b (arranged in the horizontal direction at the time of construction) formed in a roughly abacus shape in a plan view, and a central portion thereof for connecting these upper and lower flanges. (At the time of construction, arranged so as to connect the upper and lower flanges in the vertical direction). These upper and lower flanges 24a and 24b are provided with bolt holes 28 at positions along their outer peripheral edges. Utilizing the bolt holes 28, adjacent diaphragm members 20 whose joining surfaces 22 and 22 are abutted by a connecting plate member 23 described later are mutually connected.

In the figure, the diaphragm member 20 has an inner end surface 36 in which one side of a deformed hexagon having six sides is brought into contact with one side of a quadrangular prism, and is formed continuously with this inner end surface. Butt joint surface 22 to be formed. As shown in FIG. 2, the butt-joining surfaces 22 of the diaphragm members 20 are formed into a quadrilateral shape in which the corners surrounding the column 12 are cut out in close contact as shown in FIG. That is, in the drawing, the diaphragm member 20 is formed so as to be divided into four parts in a plan view along the diagonal line of the column 12. Each diaphragm member 20 has the inner end surface 36 as a column contact portion. The column contact portion as the inner end surface includes the fillet weld portion 18 with the column 12 described above. In this embodiment, the pillar 12 and the inner end face of each diaphragm member 20, that is, the pillar contact portion are all fixed by fillet welding. Then, the respective diaphragm members 20 are bolted together by a joint member 23 described later.

The connecting plate members 23a, 23b, 23c and 23d are formed in a trapezoidal shape in plan view toward the respective column surfaces, and a plurality of bolt holes 34 are formed in the plate surface. The joining surfaces 22, 22 of the upper and lower flanges 24a, 24b of the respective diaphragm members 20a, 20b, 20c, 20d are joined to each other, and the connecting plate members 23a, 23b, 23c are respectively straddled on the joined upper and lower surfaces. , 23d are arranged and connected by bolts. The connecting member 23 is formed in a trapezoidal or fan-like shape so as to cover a diagonal to a corner formed by adjacent sides of the quadrangular prism so that buckling hardly occurs.

As shown in FIG. 5, the upper and lower flanges of the beam 14 are connected to the corresponding upper and lower flanges 24 a and 24 b of the diaphragm member 20 by a flange connecting plate 26. Further, a plurality of bolt holes 30 are formed on the outer edge side of the rib 24 c of each diaphragm member 20, and the ribs 14 c of the beam 14 are connected by the rib joint plate 32 using the plurality of bolt holes 30.

3 and 4, the diaphragm members 20 a, 20 b, 20 c, and 20 d are arranged so as to surround the column 12, and the inner end surface 36 of these diaphragm members 20 is fillet welded to the plate surface of the column 12. And fix it with. Therefore, the connecting plate members 23 are arranged on the upper and lower surfaces of the butted joining surfaces 22 of the adjacent diaphragm members 20 so as to straddle both diaphragm members, and are integrally bolted together with bolts 38.

Therefore, the diaphragm member arranged at the joint between the column and the beam is provided so as to surround the periphery of the column, and has a butt joint surface where these diaphragm members are arranged in a butt shape. Then, on the butt end side of the butt joint surface, each diaphragm member is bolt-connected with a connecting plate member arranged so as to straddle and apply to each other, thereby filling the pillar and the diaphragm member with the fillet. Welding connection by welding can provide the bearing strength of the beam, does not require skilled welding technology, reduces the number of man-hours on the welding surface, increases the efficiency of welding work, shortens the working time, Processing costs, including the required labor costs, can be greatly reduced. In addition, the diaphragm member can be joined and connected to the column as a rigid body that is integrated, and the load applied to the diaphragm member supporting the beam is evenly distributed, so that the diaphragm member does not buckle, etc. High supporting strength can be maintained. Furthermore, the joint surface between the column and the diaphragm member can be joined and connected by fillet welding, and the processing cost of the joint connection between the column and the beam can be reduced.

As shown in FIG. 2, each diaphragm member 20 a, 20 b, 20 c, 20 d has an abutting surface 40 of each diaphragm member 20 in an intersecting direction that does not become at least perpendicular to the longitudinal extension of the column 12. It may be formed. The beam 14 is connected to the column 12 in a direction perpendicular to the plate surface. Therefore, the butting portions 40 of the diaphragm members arranged in the direction intersecting with the longitudinal extension line of the column 12 are easily bolted by the connecting plate member 23 to connect the diaphragm members 20 to the column as an integrated rigid body. The load applied to the diaphragm members is evenly distributed, preventing the diaphragm members from buckling, etc., maintaining the adhesion between each diaphragm member and the column, and improving the bearing strength of the beam. Can be held to a high degree.

Further, each diaphragm member 20 is formed so as to be divided into four parts in a plan view along a diagonal line of the column 12, and each diaphragm member 20 includes a column contact portion 42 including a fillet weld portion 18 with the column 12, It may include a four-diagonal butting portion 40. Each of the diaphragm members supports the beam because a four-diagonal butting portion 40 along the diagonal of the column is bolted by the connecting plate member 23 and joined and connected by the column 12 and the fillet weld portion 18. When this is done, buckling deformation does not occur in the diagonal butt portion 40 and the fillet welded column contact portion 42 does not come off, and the beam can be firmly supported. Further, each diaphragm member divided into four parts in a plan view is small and lightweight, has excellent workability of welding connection to a column, can shorten the work time, and can end the work efficiently.

[0023]

[Effect of the invention]

 As described above, the joint structure between a column and a beam according to the present invention has a diaphragm portion disposed at a joint portion between a column and a beam, and the diaphragm portion is used for joining with a column. A plurality of diaphragm members having fillet welds are provided.These diaphragm members are provided so as to surround the periphery of the column, and have a butt joint surface where the diaphragm members are arranged in a butt shape. A joining plate member arranged on the butting edge side of the butting joint surface so as to be straddled over the mutual diaphragm members and connected to each of the diaphragm members by bolts; The diaphragm members and the columns are joined and connected together, and the respective diaphragm members are integrally bolted to each other by the connecting plate members so as to surround the columns. The diaphragm member disposed at the joint between the column and the beam is provided so as to surround the periphery of the column, and has a butt joint surface in which the diaphragm members are arranged in a butt shape. At the butt edge side of the joining surface, each diaphragm member is bolt-connected by a connecting plate member arranged so as to straddle and apply to each diaphragm member, thereby joining and connecting the column and the diaphragm member by fillet welding. The beam has sufficient bearing strength, does not require skilled welding technology, requires fewer processing steps on the welded surface, increases the efficiency of welding work, shortens work time, and includes labor costs required for processing. An object of the present invention is to provide a joint structure between a column and a beam, which can greatly reduce the processing cost. In addition, the diaphragm member can be joined and connected to the column as an integrated rigid body, and the load applied to the diaphragm member supporting the beam is evenly distributed so that the diaphragm member does not undergo buckling deformation, etc. High beam bearing capacity can be maintained. In addition, the joint surface between the column and the diaphragm member can be joined and connected by fillet welding, and the processing cost of the joint connection between the column and the beam can be reduced.

The diaphragm member has an abutting surface between the respective diaphragm members formed in an intersecting direction so as not to be at least perpendicular to the longitudinal extension line of the column, so that the diaphragm member extends in a direction intersecting the longitudinal extension line of the column. The butted surfaces of the arranged diaphragm members can be bolted together with joint members to join each diaphragm member to the column as a rigid body that is integrated, and the load applied to the diaphragm members can be evenly distributed to the diaphragm members. Buckling deformation or the like does not occur, and the supporting strength of the beam can be maintained at a high level while maintaining the adhesion between each diaphragm member and the column.

The diaphragm member is formed so as to be divided into four parts in a plan view along a diagonal line of the column. Each of the diaphragm members has a column contact part including a fillet welded part with the column and the four-diagonal butted part. Since each diaphragm member includes a diagonal butt portion divided into four sections along the diagonal of the column, the diaphragm member is bolt-connected to the joining plate member, and the column is joined to the column at the fillet weld, so that the beam is connected. The beam can be firmly supported without causing buckling deformation at the diagonal butt portion when supported, and without removing the fillet welded column contact portion. Further, each of the diaphragm members divided into four parts in a plan view is small and lightweight, has excellent workability of welding connection to a column, can shorten work time, and can end the work efficiently.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view illustrating a state in which a beam is connected to a joint structure between a column and a beam according to an embodiment of the present invention.

FIG. 2 is an explanatory plan view of a joint structure between a column and a beam.

FIG. 3 is an explanatory plan view in which a diaphragm member divided into four parts in a plan view and a connecting plate member that mutually connects the diaphragm members are arranged on the periphery of a pillar.

FIG. 4 is an explanatory front view showing a state where a diaphragm member is welded to a pillar.

FIG. 5 is an explanatory front view showing a state in which a diaphragm member is arranged in a circular shape on a pillar.

FIG. 6 is an explanatory plan view of a conventional through-column connection in which a diaphragm member is butt-welded to a column.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Joint structure of a column and a beam 12 Column 14 Beam 16 Diaphragm 18 Fillet weld 20 Diaphragm member 22 Butt joint surface 36 Inner end surface 42 Column adhesion portion

Claims (3)

[Utility model registration claims] A diaphragm provided at a joint between the column and the beam, the diaphragm including a plurality of diaphragm members having a fillet weld for joining to the column; The diaphragm member is provided so as to surround the periphery of the column, and has a butt joint surface in which the diaphragm members are arranged in a butt shape. On the butt edge side of the butt joint surface, the diaphragm members are connected to each other. It is arranged so as to be straddled and provided with a connecting plate member that is bolted to each diaphragm member, and each diaphragm member and a column are joined and connected at the fillet weld portion, and each diaphragm member is connected to each other. A joint structure between a column and a beam, which is integrally bolted by the joint plate member so as to surround the column. 2. A joint between a column and a beam according to claim 1, wherein said diaphragm member has a butt surface between said diaphragm members in an intersecting direction which does not become at least a direction perpendicular to a longitudinal extension line of the beam. Part structure. 3. The diaphragm member is formed so as to be divided into four parts in a plan view along a diagonal line of the column, and each of the diaphragm members includes a column contact portion including a fillet weld portion with the column. 3. A joint structure between a column and a beam according to 1 or 2.