|Table of Contents|

Research on initial stiffness and seismic performance of all-bolted joints of concrete-filled multicellular steel tube shear wall-steel beam(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2025年01期
Page:
26-40
Research Field:
建筑结构
Publishing date:

Info

Title:
Research on initial stiffness and seismic performance of all-bolted joints of concrete-filled multicellular steel tube shear wall-steel beam
Author(s):
LIU Yifeng1;  CAI Honghao1;  LIU Xiaoguang2
(1. China Southwest Architecture Design and Research Institute Co., Ltd, Chengdu 610042, Sichuan, China; 2. Hangxiao Steel Structure Co., Ltd., Hangzhou 310003, Zhejiang, China)
Keywords:
fabricated steel structure;  rigidity;  seismic behavior;  finite element analysis;  parametric analysis;  end plate connection
PACS:
TU352
DOI:
10.19815/j.jace.2023.01032
Abstract:
Two kinds of all-bolted rigid connection joints were proposed for concrete-filled multicellular steel tube shear wall. A total of six concrete-filled multicellular steel tube shear wall-H-shaped steel beam all-bolted end plate connection joints based on high strength bolts and one concrete-filled multicellular steel tube shear wall-H-shaped steel beam all-bolted side plate connection joint were designed. The cyclic loading test of seven specimen joints was conducted. The finite element model was established by ABAQUS software. After comparing the finite element simulation results with the experimental results, the influence of different parameters on the seismic behavior of concrete-filled multicellular steel tube shear wall-H-shaped steel beam all-bolted connection joints was studied by parametric analysis system. The results show that the two all-bolted connection joints can achieve rigid connection. The stiffness of end plate joints depends mainly on steel beam end plate and wall end plate thicknesses. Side plate joints dissipate energy mainly through the slip of bolts, showing the characteristics of low yield-bearing capacity and high ductility. The bolt diameter and friction coefficient in the side plate joints have a great influence on the sliding load of the joints, and the influence on the bending ultimate bearing capacity is small. The proposed design suggestions for joints can provide reference for engineering design.

References:

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Last Update: 2025-01-20