中心支撑钢框架结构基于性能的塑性抗震设计

熊二刚;张倩

振动与冲击 ›› 2013, Vol. 32 ›› Issue (19) : 32-38.

PDF(2128 KB)
PDF(2128 KB)
振动与冲击 ›› 2013, Vol. 32 ›› Issue (19) : 32-38.
论文

中心支撑钢框架结构基于性能的塑性抗震设计

  • 熊二刚1,张倩2
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Performance-based plastic design method for steel concentrically braced frames

  • XIONG Er-gang1 ZHANG Qian2
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摘要

根据功能平衡原理,本文提出了一种中心支撑钢框架结构基于性能的塑性设计方法。预先选定目标侧移和屈服机制,根据功能平衡方程即可得到结构的设计基底剪力。采用塑性设计法设计支撑构件和节点以便达到预期的屈服机制和性能。采用此方法对一幢6层中心支撑钢框架结构进行了设计,然后采用动力时程分析法验证了该方法的可行性,为中心支撑钢框架结构基于性能的塑性抗震设计法提供了一定的依据。

Abstract

This paper presents a performance-based plastic design (PBPD) methodology for the design of steel concentrically braced frames (CBFs). The design base shear is obtained based on energy-work balance using pre-selected target drift and yield mechanism. Plastic design is performed to detail the bracing members connections in order to achieve the targeted yield mechanism and behavior. The method has been successfully applied to a six-storey steel concentrically braced frame, and validated by inelastic dynamic analyses. In the cases, the story drifts are well within the target values, thus meeting the desired performance objectives. The addressed method herein can form a basis for the performance-based plastic design of steel concentrically braced frames.


关键词

基于性能的塑性设计 / 中心支撑钢框架 / 目标侧移 / 屈服机制 / 功能方程

Key words

PBPD / steel concentrically braced frames / target drift / yielding mechanism / work-energy equation

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导出引用
熊二刚;张倩. 中心支撑钢框架结构基于性能的塑性抗震设计[J]. 振动与冲击, 2013, 32(19): 32-38
XIONG Er-gang ZHANG Qian. Performance-based plastic design method for steel concentrically braced frames[J]. Journal of Vibration and Shock, 2013, 32(19): 32-38

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