防屈曲蝴蝶形钢板墙抗震性能有限元分析

卜阳; 张萍

doi:10.13204/j.gyjzG20041801

防屈曲蝴蝶形钢板墙抗震性能有限元分析

doi: 10.13204/j.gyjzG20041801

卜阳¹,
张萍²

1. 上海中森建筑与工程设计顾问有限公司, 上海 200062;
2. 香港理工大学建筑与房地产系, 香港 999077

详细信息

作者简介:
卜阳,男,1991年出生,硕士研究生。电子信箱:buyangry@163.com

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出版历程
- 收稿日期: 2020-04-18
- 网络出版日期: 2022-07-25

Finite Element Analysis on Seismic Performance of Buckling-Restrained Butterfly-Shaped Steel Plate Wall

BU Yang¹,
ZHANG Ping²

1. Shanghai Johnson Architectural & Engineering Designing Consultants Ltd., Shanghai 200062, China;
2. Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong 999077, China

摘要

摘要: 提出了一种利用槽钢整体屈曲约束的两边连接防屈曲蝴蝶形钢板墙,该墙体为主体结构提供一定抗侧刚度的同时也优化了结构的耗能性能。介绍了该新型防屈曲蝴蝶形钢板墙的构造和工作原理。采用有限元软件ABAQUS对该结构进行低周往复加载,对比理论分析验证了模拟的可靠性,进而系统地分析了屈曲约束蝴蝶形钢板墙滞回曲线、骨架曲线、刚度退化曲线、延性和耗能性能,并且对比了施加不同屈曲约束方式的钢板墙的滞回性能。结果表明:防屈曲蝴蝶形钢板墙能够有效提高蝴蝶板的整体稳定性、延性和耗能性能;当蝴蝶带参数宽厚比(b/t)、蝴蝶带高度与钢板墙高度比(L/h)减小时,初始弹性刚度和承载力不断增加,滞回曲线趋于饱满,耗能能力逐渐增强。
- 防屈曲 /
- 钢板墙 /
- 蝴蝶带 /
- 有限元 /
- 耗能
Abstract: A novel buckling-restrained butterfly-shaped steel plate wall that restrict the overall buckling by channel steel was proposed, which can provide certain lateral stiffness together with improving the energy dissipation capacity for the structure. The configuration and principle of buckling-restrained butterfly-shaped steel plate wall were presented. The finite element software ABAQUS performed a numerical simulation analysis on the butterfly-shaped steel plate wall under quasi-static loading and calibrated by theoretical lateral stiffness. Then, the parametric studies were carried out to inspect the hysteretic curves, load-displacement curves, stiffness degradation curves, ductility and energy dissipation of the structure and the effects of the buckling-restrained methods were also compared. The results showed that overall stability, ductility and energy dissipation of the buckling-restrained butterfly-shaped steel plate wall could be enhanced; when the ratio of width to thickness of butterfly link (b/t) and ratio of butterfly link height to steel plate wall thickness (L/h) declined, the bearing capacity and stiffness both increased, accompanied with a fuller hysteretic curves and enhanced energy dissipation capacity.
- buckling-restrained /
- steel plate wall /
- butterfly link /
- finite element /
- energy dissipation

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