Parametric Analysis of Seismic Performance of Concrete-filled Steel Tubular Frame with Buckling-restrained Brace

任凤鸣; 张杰标

doi:10.13409/j.cnki.jdpme.2014.04.024

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Parametric Analysis of Seismic Performance of Concrete-filled Steel Tubular Frame with Buckling-restrained Brace

更新时间：2025-12-11

- Parametric Analysis of Seismic Performance of Concrete-filled Steel Tubular Frame with Buckling-restrained Brace
- Vol. 34, Issue 4, Pages: 422-428(2014)
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- DOI：10.13409/j.cnki.jdpme.2014.04.024
  CLC： U398.9
- Published：2014
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[1]任凤鸣,张杰标.带防屈曲支撑的钢管混凝土框架抗震性能参数分析[J].防灾减灾工程学报,2014,34(04):422-428.

任凤鸣, 张杰标. Parametric Analysis of Seismic Performance of Concrete-filled Steel Tubular Frame with Buckling-restrained Brace[J]. 2014, 34(4): 422-428.
[1]任凤鸣,张杰标.带防屈曲支撑的钢管混凝土框架抗震性能参数分析[J].防灾减灾工程学报,2014,34(04):422-428. DOI： 10.13409/j.cnki.jdpme.2014.04.024.

任凤鸣, 张杰标. Parametric Analysis of Seismic Performance of Concrete-filled Steel Tubular Frame with Buckling-restrained Brace[J]. 2014, 34(4): 422-428. DOI： 10.13409/j.cnki.jdpme.2014.04.024.

摘要

设置防屈曲支撑的钢管混凝土框架是一种新型钢管混凝土减震结构。采用有限元软件Opensees对设置防屈曲支撑的单层单跨钢管混凝土减震框架进行数值模拟

研究了框架梁柱线刚度比、防屈曲支撑初始刚度以及钢管混凝土柱轴压比等设计参数对该减震结构抗震性能的影响。研究结果表明:1数值模拟和试验结果吻合较好

验证了有限元模型的正确性;2梁柱线刚度比在0.10.3之间变化时

钢管混凝土减震框架的抗震性能较好;3BRB耗能支撑的初始刚度K1在4080kN/mm变化时

减震框架的耗能减震效应较明显;4在合理的钢管混凝土柱轴压比范围内

当轴压比较大时

在钢管混凝土框架中设置防屈曲支撑能明显地提高结构的耗能能力和改善结构的强度退化现象。

Abstract

Concrete filled steel tubular（CFST）frame with buckling-restrained brace（BRB）is a new type of CFST energy dissipation structure.The effects of linear stiffness ratio of beam to column

initial stiffness of BRB and axial compression ratio of CFST columns on the seismic performance of structure were studied by using the finite element software Opensees.The study results show that:（1）the results of numerical simulation agree well with experimental analysis results and the correctness of the numerical model is tested and verified;（2）the CFST frame with BRB has better seismic behaviors

while linear stiffness ratio of beam to column is about 0.1-0.3;（3）the energy dissipation effectiveness of the structure is superior when K1 is between 40kN/mm and 80kN/mm;（4）the seismic performance of CFST frame and the strength degradation can be significantly improved by adding BRB in the structure when the axial compression ratio of the CFST columns that is in the reasonable value range is relatively large.

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references

钢管混凝土减震框架与钢管混凝土框架-剪力墙结构的对比试验研究 [J]. 任凤鸣,周云,林绍明,张杰标. 土木工程学报 . 2012(04)

外包U形钢与混凝土组合梁柱节点在低周往复荷载作用下的抗震性能分析 [J]. 周学军,王晓晔,张元植. 土木工程学报 . 2010(S1)

钢管混凝土框架—核心筒减震结构的抗震性能研究 [D]. 任凤鸣. 广州大学 2012

钢管混凝土柱—钢梁平面框架的力学性能研究 [D]. 王文达. 福州大学 2006

钢管混凝土统一理论[M]. 清华大学出版社 , 钟善桐著, 2006

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