JP2005188258A - Column joint structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a column joint structure capable of preventing the considerable extension of a peripheral portion of a column joint structure inside a room of a building or outside the building and also capable of preventing strengths for connecting upper and lower column members in the length direction from being uniform at each position of a mutual connecting and contacting surface. <P>SOLUTION: A first joint member 101 jointed in a body to the lower end surface of an upper column member 32 and a second joint member 102 jointed in a body to the upper surface of a lower column member 34 are provided, and by connecting the first joint member 101 to the second joint member 102 in the up-down direction, screw fastening members 136 and 138 fastening the first joint member 101 and the second joint member 102 which make a column joint structure 100 connect the upper column member 32 and the lower column member 34 in the length direction can be installed in a concave 115 formed at least at either of the first joint member 101 and the second joint member 102. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a column joint structure used to connect the ends of columns of a building column, such as a steel structure or a concrete-filled steel pipe structure, in the longitudinal direction thereof.

  As a conventional column joint structure, for example, there is a column joint structure 30 as shown in FIGS. 15 and 16 (for example, Patent Document 1). In this conventional column joint structure 30, first, a column joint plate member 40 that is integrally joined by welding is provided, with the upper surface being brought into contact with the lower end surface of the square columnar upper column member 32.

  Then, like the upper column member 32, the inner peripheral portion 42 b of the column joint annular member 42 is fitted around the upper end portion of the lower column member 34 having a rectangular tube shape, and the column joint annular member 42 is the lower column. The upper end of the member 34 is integrally joined by welding.

  Further, below the column joint annular member 42 of the lower column member 34, a column beam joining member 38 used for joining the end of the beam member 36 to the lower column member 34 is integrally joined by welding. . Note that the end portion of the beam member 36 is also integrally joined to the peripheral portion of the column joint annular member 42 by welding.

  Further, the column joint plate member 40 and the column joint annular member 42 have their left and right sides greatly extended in the horizontal direction in FIG. The member 32 and the lower column member 34 are connected in the length direction.

Japanese Patent Application No. 2003-341589

  However, in such a conventional column joint structure, as described above, the peripheral portions of the column joint plate member 40 and the column joint annular member 42 that are fastened by the bolts 44 and the nuts 46 are connected to the upper column member 32. Since it protrudes largely from the side surface of the lower column member 34 to the outside in the vertical direction (horizontal direction), there are the following problems.

  That is, there is no problem when the column joint plate member 40 and the column joint annular member 42 are arranged under the floor of the room, but when the column joint plate member 40 and the column joint annular member 42 are arranged at an intermediate height position between the floor and the ceiling, the column joint plate member 40 and the column are arranged. If the peripheral portion of the joint annular member 42 protrudes greatly into the room and a wall extending in the vertical direction is provided at the tip, there is a problem that the room is narrowed by the amount of the protrusion.

  Moreover, as shown in FIG. 16, aside from the case where the upper pillar member 32 and the lower pillar member 34 are used as the middle pillar of a building in which the ends of the beam member 36 are connected to the four sides of the cross section, As in the other conventional column joint structure 80 shown in FIGS. 17 and 18, the upper column member 32 and the lower column member 34 are connected to the adjacent two sides of the cross section so that the beam member 36 is connected to the corner of the building. When used as a pillar, there are the following problems.

  That is, in order to enlarge the room inside the building as much as possible, the column joint plate member 90 and the column joint annular member 92 shown in FIG. 18 corresponding to the column joint plate member 40 and the column joint annular member 42 are The two sides 90c and 90c that face the outside cannot be extended to the outside as the other two sides to which the ends of the beam member 36 are connected.

  For this reason, the column joint plate member 90 and the column joint annular member 92 are each fastened by bolts 44 and nuts 46 with the left and upper sides in FIG. The member 34 is connected in the length direction.

  In this case, the column joint plate member 90 and the column joint annular member 92 are not fastened by the bolts 44 and the nuts 46 on their right and lower sides in FIG. 18 (the column joint plate member of FIG. 17). 90 and the right side of the column joint annular member 92).

  For this reason, when an external force having a horizontal component that tilts the upper column member 32 is applied, the right and lower sides of the column joint plate member 90 and the column joint annular member 92 in FIG. It is said that the strength of connecting the upper column member 32 and the lower column member 34 becomes uneven depending on the positions of the connection contact surfaces of the column joint plate member 90 and the column joint annular member 92. There was a problem.

  Therefore, in view of the above problems, the present invention prevents the peripheral portion of the column joint structure from protruding greatly toward the outside of the room of the building or the outside of the building, and connects the upper and lower column members in their length direction. It is an object of the present invention to provide a column joint structure capable of preventing the strength to be generated from being non-uniform depending on each position of the connecting contact surfaces.

In order to solve the above problems, the present invention provides:
A first joint member integrally joined to the lower end surface of the upper column member;
A second joint member integrally joined to the upper end surface of the lower column member,
A column joint structure for coupling the upper column member and the lower column member in the length direction by coupling the first joint member and the second joint member in the vertical direction,
A screw fastening member for fastening the first joint member and the second joint member is provided in a recess formed in at least one of the first joint member and the second joint member. is there.

  According to such a column joint structure of the present invention, it is possible to prevent the peripheral portion of the column joint structure from projecting greatly toward the outside of the building room or the outside of the building, and the upper and lower column members in the length direction thereof. It can prevent that the intensity | strength linked to becomes uneven by each position of a mutual connection contact surface.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
FIGS. 1 to 4 are views referred to for describing a first embodiment of a column joint structure according to the present invention.

  In the column joint structure 100 according to the present embodiment shown in FIG. 1, first, the first joint member 101 is integrally joined by welding with the uppermost surface in contact with the lower end surface of the upper column member 32 having a rectangular tube shape. Is provided. Also, the second joint member 102 is provided in which the lowermost surface is brought into contact with the upper end surface of the lower column member 34 having a rectangular tube shape and integrally joined by welding.

  The first joint member 101 has an upper plate portion 104 and a lower plate portion 106 whose horizontal dimension is the same as the horizontal sectional dimension of the upper pillar member 32, and between these, As shown in FIG. 2, there are provided a rectangular column 108 at the center of the horizontal section and four reinforcing plates 110 extending from the center of each surface of the prism 108 to the center of each side of the upper and lower plate portions 104 and 106. ing.

  Further, the first joint member 101 is formed with a square hole 112 that penetrates from the central portion of the upper plate portion 104 to the central portion of the lower plate portion 106 and passes through the axial portion of the prismatic portion 108. The lower plate portion 106 is formed with twelve bolt holes 114, three at each corner.

  Therefore, the first joint member 101 is formed with a recess 115 surrounded by the lower surface of the upper plate portion 104, the upper surface of the lower plate portion 106, the peripheral surface of the prism portion 108, and the front and back surfaces of the reinforcing plate 110. Thus, the bolt hole 114 is formed in the recess 115.

  The second joint member 102 has an upper plate portion 124 and a lower plate portion 126 whose horizontal dimension is the same as the horizontal sectional dimension of the lower pillar member 34, and between these, As shown in FIG. 3, there are provided a rectangular column 128 at the center of the horizontal section, and four reinforcing plates 130 extending from the center of each surface of the prism 128 to the center of each side of the upper and lower plate parts 124, 126. ing.

  Further, the second joint member 102 is formed with a square hole 132 that penetrates from the central part of the upper plate part 124 to the central part of the lower plate part 126 and passes through the axial part of the prismatic part 128. A total of twelve bolt holes 134, three at each corner, are formed in the upper plate portion 124 at positions corresponding to the positions of the bolt holes 114 of the first joint member 101.

  Accordingly, the second joint member 102 is formed with a recess 135 surrounded by the lower surface of the upper plate portion 124, the upper surface of the lower plate portion 126, the peripheral surface of the prismatic portion 128, and the front and back surfaces of the reinforcing plate 130. Thus, a bolt hole 134 is formed in the recess 135.

As shown in FIG. 1, bolts 136 are inserted through the bolt holes 114 of the first joint member 101 and the bolt holes 134 of the second joint member 102 as shown in FIG. When the nut 138 is fastened to the tip of the upper pillar member 32, the upper pillar member 32 and the lower pillar member 34 are connected in the length direction thereof.
FIG. 4 is a cross-sectional view of the column joint structure 100 in FIG.

  According to such a column joint structure 100, the peripheral portions of the first joint member 101 and the second joint member 102 are prevented from greatly projecting toward the inside of the room of the building or the outside of the building, and the upper and lower column members 32. , 34 in the longitudinal direction can be prevented from becoming uneven depending on the positions of the connecting contact surfaces of the first joint member 101 and the second joint member 102.

  And since each bolt hole 114,134 is arrange | positioned substantially equally as a whole in the shaft periphery direction of the 1st joint member 101 and the 2nd joint member 102, the upper and lower column members 32,34 are made long. It is possible to prevent the strength of coupling in the direction from becoming uneven due to the respective positions around the axis.

  In the column joint structure 100 according to the above embodiment, the square holes 112 and 132 are formed in the first joint member 101 and the second joint member 102. However, these square holes 112 and 132 are not necessarily provided. Also good. When the square holes 112 and 132 are not provided as described above, the strength of the first joint member 101 and the second joint member 102 against an external force having a horizontal component that causes the upper column member 32 to be tilted can be improved. .

  5 and 6 are diagrams referred to for describing the second embodiment of the present invention. In the second embodiment, instead of the first joint member 101 and the second joint member 102 in the first embodiment, the first joint member 141 shown in FIG. 5 and the second joint shown in FIG. 6 are used. The member 142 is used.

  The first joint member 101 and the second joint member 102 are desirably manufactured by casting or forging using a die from the top, but the first joint member 141 and the second joint member in the second embodiment are used. The two joint members 142 can be easily manufactured from the shape by mechanical cutting.

  That is, in the first joint member 141, the four reinforcing plates 110 are formed so as to be continuous with the central rhombus column 148 via the arc surface, and also in the second joint member 142, the four reinforcing plates 130 are formed. Is formed so as to be continuous with the rhomboid column 158 at the center via an arc surface.

  By forming the back shape of the concave portion 145 by the reinforcing plate 110 and the rhomboid column portion 148, it is possible to cut a rectangular parallelepiped steel material with a rotary blade of a machining machine such as a milling machine. . In addition, since the reinforcing plate 130 and the rhombus column 158 form a shape behind the concave portion 165, the steel material can be cut by a rotary blade of a machining machine.

  7 to 9 are diagrams which are referred to for explaining the third embodiment of the present invention. The column joint structure 200 according to the present embodiment shown in FIG. 7 is provided with a joint member 201 that is integrally joined by welding by bringing the uppermost surface into contact with the lower end surface of the upper column member 32 having a rectangular tube shape. It has been. Also, a joint plate member 202 is provided in which the lower surface is brought into contact with the upper end surface of the lower column member 34 having a rectangular tube shape and integrally joined by welding.

  The joint member 201 has the same configuration as that of the first joint member 101 in the first embodiment as shown in FIG. 2, and therefore redundant description of the configuration is omitted.

  As shown in FIG. 8, the joint plate member 202 is formed of a quadrangular plate member, and the joint plate member 202 has three screw holes 204 in each corner, a total of twelve screw holes 204. The bolt hole 114 (see FIG. 2) is formed at a position corresponding to each position.

For this reason, as shown in FIG. 7, by inserting a bolt 236 into the bolt hole 114 of the joint member 201 from above and screwing the screw thread portion 204 to the screw hole 204 of the joint plate member 202, the upper column member 32 and the lower column member 34 are connected in the length direction.
FIG. 9 is a cross-sectional view of the column joint structure 200 in FIG.

  10 and 11 are diagrams which are referred to in order to explain the fourth embodiment of the present invention. The column joint structure according to the present embodiment shown in FIG. 10 has the same configuration as that of the column joint structure 100 according to the first embodiment, and therefore redundant description of the configuration is omitted. And

  However, in the fourth embodiment, as shown in FIG. 10, the upper surface of the intermediate plate member 212 is brought into contact with the lower surface of the lower plate portion 126 of the second joint member 102 and integrally joined by welding, Further, the upper surface of the lower column member 234 whose outer cross-sectional dimension is larger than that of the upper column member 32 is brought into contact with the lower surface of the intermediate plate member 212 and integrally joined by welding.

According to such a 4th embodiment, it can connect also between the upper and lower pillar members from which the size of the outside dimension of a horizontal section differs.
FIG. 11 is a cross-sectional view of the column joint structure in FIG.

  12-14 is a figure referred in order to demonstrate the 5th Embodiment of this invention. The first joint member 301 of the column joint structure 300 according to the present embodiment shown in FIG. 12 has the same configuration as the first joint member 101 in the first embodiment. The redundant description of will be omitted.

  As shown in FIGS. 12 and 13, the second joint member 302 of the column joint structure 300 includes an upper plate portion 324 having the same size as the lower plate portion 106 of the first joint member 301 and a horizontal section larger than that of the upper column member 32. The lower plate member 234 having the same outer size as the lower column member 234 has the same outer size as the lower column member 234, and the prismatic portion 328 and the four reinforcing plates 330 are provided therebetween.

  Further, the upper plate portion 324 of the second joint member 302 is formed with a square hole 332 that penetrates from the central portion thereof to the central portion of the lower plate portion 326 and passes through the axial portion of the prismatic portion 328, and each corner portion. In total, twelve bolt holes 334 are formed at positions corresponding to the respective positions of the bolt holes 114 (see FIG. 2) of the first joint member 301.

  Therefore, the second joint member 302 is formed with a recess 335 surrounded by the lower surface of the upper plate portion 324, the upper surface of the lower plate portion 326, the peripheral surface of the prismatic portion 328, and the front and back surfaces of the reinforcing plate 330. Thus, the bolt hole 334 is formed in the recess 335.

As shown in FIG. 12, bolts 136 are inserted through the respective bolt holes 114 of the first joint member 301 and the bolt holes 334 of the second joint member 302 from the bottom to the top. When the nut 138 is fastened to the tip screw portion, the upper column member 32 and the lower column member 234 are connected in the length direction thereof.
FIG. 14 is a cross-sectional view of the column joint structure 300 in FIG.

  In the above-described embodiment, the case where a prismatic member is used as the column member has been described. However, the present invention is also applied to a case where a column member having a different cross-section such as H-shaped steel is used. can do.

  In the above embodiment, the case has been described where the horizontal dimension of the joint member is set to be the same as the horizontal dimension of the horizontal cross-section of the column member on which the joint member is provided. However, it is preferable that the horizontal dimension of the joint member is substantially the same as or smaller than the dimension of the horizontal cross section of the column member.

  In the above embodiment, the case where the end of the beam member is not integrally connected to the column joint structure has been described. However, when the column joint structure is arranged under the floor of the room, the beam member is not attached to the column joint structure. You may make it connect an edge part integrally.

1 is a side view showing a column joint structure 100 according to a first embodiment of the present invention. It is a figure which shows the 1st coupling member 101 in FIG. 1, Fig.2 (a) is the top view, FIG.2 (b) is the side view. FIG. 3A is a plan view of the first joint member 102 in FIG. 1, and FIG. 3B is a side view thereof. FIG. 2 is a cross-sectional view of the column joint structure 100 in FIG. It is a figure which shows the 1st coupling member 141 of the column coupling structure which concerns on the 2nd Embodiment of this invention, Fig.5 (a) is the top view, FIG.5 (b) is the side view. It is a figure which shows the 2nd coupling member 142 of the column coupling structure which concerns on the 2nd Embodiment of this invention, Fig.6 (a) is the top view, FIG.6 (b) is the side view. It is a side view which shows the column joint structure 200 which concerns on the 3rd Embodiment of this invention. It is a figure which shows the coupling board member 202 in FIG. 7, FIG. 8 (a) is the top view, FIG.8 (b) is the side view. FIG. 8 is a cross-sectional view of the column joint structure 200 in FIG. It is a side view which shows the column joint structure which concerns on the 4th Embodiment of this invention. It is an AA sectional view taken on the line of the column joint structure in FIG. It is a side view which shows the column joint structure 300 which concerns on the 5th Embodiment of this invention. It is a figure which shows the 2nd coupling member 302 in FIG. 12, (a) is the top view, FIG.13 (b) is the side view. FIG. 13 is a cross-sectional view of the column joint structure 300 in FIG. It is side surface sectional drawing which shows the conventional column joint structure 30. FIG. It is the AA sectional view taken on the line of the pillar joint structure 30 in FIG. It is side surface sectional drawing which shows the other conventional column joint structure 80. FIG. 18 is a cross-sectional view taken along line AA of the column joint structure 80 in FIG. 17.

Explanation of symbols

30 Column Joint Structure 32 Upper Column Member 34 Lower Column Member 36 Beam Member 40 Column Joint Plate Member 42 Column Joint Ring Member 42b Inner Perimeter 44 Bolt 46 Nut 80 Column Joint Structure 90 Column Joint Plate Member 92 Column Joint Ring Member 100 Column Joint Structure 101 First joint member 102 Second joint member 104 Upper plate portion 106 Lower plate portion 108 Square column portion 110 Reinforcing plate 114 Bolt hole 115 Recessed portion 124 Upper plate portion 126 Lower plate portion 128 Square column portion 130 Reinforcing plate 134 Bolt hole 135 Recessed portion 141 First joint member 142 Second joint member 145 Concave portion 148 Diamond column portion 158 Diamond column portion 165 Concavity portion 200 Column joint structure 201 Joint member 202 Joint plate member 204 Screw hole 212 Intermediate plate member 234 Lower column member 236 Bolt 300 Column joint structure 301 First joint member 302 Second joint member 324 Upper plate 3 26 Lower plate portion 328 Square column portion 330 Reinforcement plate 332 Square hole 334 Bolt hole 335 Recessed portion

Claims (3)

A first joint member integrally joined to the lower end surface of the upper column member;
A second joint member integrally joined to the upper end surface of the lower column member,
A column joint structure for coupling the upper column member and the lower column member in the length direction by coupling the first joint member and the second joint member in the vertical direction,
A column joint characterized in that a screw fastening member for fastening the first joint member and the second joint member is provided in a recess formed in at least one of the first joint member and the second joint member. Construction. 2. The column joint structure according to claim 1, wherein the screw fastening members are arranged at substantially equal positions as a whole in a direction around an axis of the upper column member and the lower column member. The column joint structure according to claim 1, wherein an end portion of a beam member is integrally connected to at least one of the first joint member and the second joint member.

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