Precast modular buckling-restrained brace bolting and welding mixed connection joint

A technology of buckling constraint and mixed connection, which is applied in the directions of building components, earthquake resistance, building types, etc., can solve the problems of increasing the out-of-plane stiffness of nodes, achieve the effects of short connection length of nodes, reduced welding difficulty, and convenient construction

Active Publication Date: 2018-06-29
BEIJING UNIV OF TECH
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Problems solved by technology

[0007] This invention aims to solve the problem of traditional bolted connection and welded connection to the buckling-constrained support of the connection section length, node out-of-plane stability, energy dissipation performance, post-earthquake replacement, construction and installation In view of the problems cause

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  • Precast modular buckling-restrained brace bolting and welding mixed connection joint
  • Precast modular buckling-restrained brace bolting and welding mixed connection joint
  • Precast modular buckling-restrained brace bolting and welding mixed connection joint

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Embodiment Construction

[0039] combine figure 2 Note that the prefabricated modular buckling-constrained brace bolt-welded hybrid connection node in this embodiment includes prefabricated steel node modules, buckling-constrained braces 3 , connecting high-strength bolts 8 , fixed high-strength bolts 9 and connecting welds 10 .

[0040] combine Figure 3 ~ Figure 6 It shows that the cross-shaped plate of the connecting section of the buckling-constrained support 3 is welded by steel plates, and a bolt hole is symmetrically arranged on two of the steel plates.

[0041] combine figure 2 and Figure 7 ~ Figure 10 Explain that the first prefabricated steel node module 4, the second prefabricated steel node module 5, the third prefabricated steel node module 6 and the fourth prefabricated steel node module 7 all include connecting steel plates 11, clamping steel plates 12 and clamping and fixing steel plates 13; A number of bolt holes are longitudinally arranged on the connecting steel plate 11, and a...

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Abstract

The invention discloses a precast modular buckling-restrained brace bolting and welding mixed connection joint, and belongs to the field of energy dissipation and seismic reduction of a building structure. The precast modular buckling-restrained brace bolting and welding mixed connection joint comprises precast steel joint modules, buckling restrained braces, connecting high-strength bolts, fixedhigh-strength bolts and attachment welds. The buckling restrained braces are laid in the diagonal direction of frame structures formed by structural beams and structural columns. The precast steel joint modules comprise first precast steel joint modules, second precast steel joint modules, third precast steel joint modules, and fourth precast steel joint modules. The precast modular buckling-restrained brace bolting and welding mixed connection joint has the advantages that the length of the joint connection is short, the stiffness out of plane is high, the installation and construction are simple, and the post-earthquake replacement is convenient. The length of the traditional bolt connection is greatly reduced by adopting a method of assembling the four precast steel joint modules and supporting connecting sections, at the same time, the length of energy consumption sections can be increased according to the design proportion, and the energy consumption performance of the buckling restrained braces can be improved under the same engineering conditions.

Description

technical field [0001] The invention relates to a prefabricated modular buckling constrained support bolted and welded hybrid connection node, which belongs to the field of energy dissipation and shock absorption of building structures. Background technique [0002] Buckling-restrained bracing combines the functions of traditional bracing and metal energy-dissipating damper. It has the advantages of good tension-compression symmetry and stable hysteretic performance. It can increase the lateral stiffness of the structure in frequent earthquakes, and use the inner core in rare earthquakes Plastic deformation energy dissipation after yielding. The concept of buckling-constrained brace was first proposed by Japanese scholar Yoshino et al. in 1971, and has been widely used in Japan and the United States since then. In recent years, with the construction of high-rise and super high-rise buildings in China, more and more researches and applications of buckling-restrained braces h...

Claims

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Application Information

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IPC IPC(8): E04B1/58E04B1/98E04H9/02
CPCE04B1/58E04H9/021
Inventor 杨璐卫璇李永吉
Owner BEIJING UNIV OF TECH
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