End part local elongation type anti-buckling support-beam-column connecting node

A technology of anti-buckling support and connecting nodes, which is applied in the direction of architecture and building structure, can solve the problems of adverse effects on the seismic performance of building structures, easy cracking of beam ends and column end flanges, and difficulties in repairing structures after earthquakes, and achieves easy Post-earthquake repair, detachable post-earthquake repair, and good stability of nodes out of plane

Inactive Publication Date: 2013-03-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Construction and installation problems caused by the bolt connection method of support-gusset plate
[0007] (3) The problem of local cracking caused by the welding connection of gusset plate-beam column
[0008] Studies have shown that if fillet welds are used to connect the gusset plate and the beam-column, local stress concentration will occur at the corner of the gusset plate edge, and under the action of seismic reciprocating loads, alternating local tensile and compressive stresses will be generated, making this position easy to crack Or it is easy to cause local fracture of the beam end and column end flange connected to this position, which is more likely to cause out-of-plane buckling of the gusset plate, which will have an adverse effect on the seismic performance of the building structure, and will also affect the post-earthquake repair zone of the structure. come difficult

Method used

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  • End part local elongation type anti-buckling support-beam-column connecting node
  • End part local elongation type anti-buckling support-beam-column connecting node
  • End part local elongation type anti-buckling support-beam-column connecting node

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine Figure 4 ~ Figure 14 Illustrate, the local elongation type buckling-resistant brace-beam-column connecting node of the present embodiment, described connecting node comprises I-shaped steel beam 4 and H-shaped steel column 5, and one end of I-shaped steel beam 4 and H-shaped steel column 5 The outer surface of one side of the flange 5-1 is attached to each other; the connection node also includes a frame gusset plate 6, a local elongated node 7 at the end (buckling-resistant support), a plurality of first high-strength bolts 10 and a plurality of second High strength bolt 11;

[0018] The middle gusset plate 6-1 of the frame gusset plate 6 is inserted into the open slot 7-5 on the end part elongated node 7, and the two local elongated stiffening parts of the end part elongated node 7 Ribs or partially elongated core plates 7-2 are symmetrically arranged on both sides of the intermediate gusset plate 6-1, and the inclined plane...

specific Embodiment approach 2

[0019] Specific implementation mode two: combination Figure 4 ~ Figure 10 and Figure 14 Note that the frame gusset 6 in this embodiment includes an intermediate gusset 6-1, a vertical end plate 6-2, a horizontal end plate 6-3, a horizontal stiffening rib 6-4 and a vertical stiffening rib 6-5 ;

[0020]The middle gusset plate 6-1 is arranged vertically, the upper end face and the lower end face of the middle gusset plate 6-1 are both horizontal planes, the length of the upper end face of the middle gusset plate 6-1 is less than the length of the lower end face, and the middle gusset plate 6-1 One end of the upper end face of the middle gusset plate is flush with one end of the lower end face, the other end of the upper end face of the middle gusset plate 6-1 is connected with the other end of the lower end face through the inclined plane 6-6 and the vertical plane 6-7 in turn, and the middle gusset plate 6 -1 has a first positioning bolt hole 6-8, the lower end surface of t...

specific Embodiment approach 3

[0021] Specific implementation mode three: combination Figure 11 to Figure 14 Note that the locally elongated end node 7 (buckling-resistant support) in this embodiment includes an intermediate core plate 7-1 and two locally elongated stiffeners or locally elongated core plates 7-2 (used to support the end part); two partially elongated stiffeners or partially elongated core plates 7-2 are symmetrically arranged on both sides of the middle core plate 7-1 in the thickness direction and are perpendicular to the middle core plate 7-1, and the local elongated stiffeners Or the length of the partially elongated core board 7-2 is longer than the board length of the middle core board 7-1, and one side of the middle core board 7-1 in the length direction is connected with two partially elongated stiffeners or the partially elongated core board 7 One side of the length direction of -2 is arranged flush, the middle core plate 7-1 is welded with two partially elongated stiffeners or par...

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Abstract

The invention discloses an end part local elongation type anti-buckling support-beam-column connecting node and relates to an anti-buckling support-beam-column connecting node which is used for solving the problems in the aspects of anti-seismic performance of support and building structures, stability outside the plane of the node, seismic rehabilitation, construction, installation and the like caused by support-node plate bolted connection and node plate-beam column welded connection. An intermediate node plate of a framework node plate is plugged in an open slot on the end part local elongation type node, an intermediate core plate and a local elongation stiffening rib or a local elongation core plate are welded together with the intermediate node plate, the framework node plate is placed on the upper surface of the top flange of an I-shaped steel beam, vertical end plates of the framework node plate lean against each other and prop against the side flange of an H-shaped steel column, and the framework node plate is fixedly connected with the H-shaped steel column and the I-shaped steel beam respectively through a plurality of first and second high-strength bolts. The end part local elongation type anti-buckling support-beam-column connecting node is used for civil construction structures, especially in multi-storey and high-rise anti-seismic, energy-consuming and shock-absorption building structures.

Description

technical field [0001] The invention relates to an anti-buckling support-beam-column connection node, which belongs to the field of building structures. Background technique [0002] Buckling-resistant braces are currently being used as a new energy-dissipating and shock-absorbing component in civil and architectural structures, especially in multi-story buildings. In general (see Figure 1 ~ Figure 3 ), the core material of the anti-buckling brace can adopt straight and cross-shaped cross-sections, but the end nodes of the braces generally adopt welded cross-shaped cross-sections to increase their bending stiffness. Therefore, in order to connect with the frame gusset plate, the frame gusset plate also needs to be made into a corresponding welded cross section, and eight splicing plates are clamped to each other by high-strength bolts to connect each other, while the gusset plate and the beam column are connected by fillet welds Connection, such traditional connection meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/58
Inventor 赵俊贤吴斌欧进萍
Owner HARBIN INST OF TECH
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