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Seismic behaviour and design procedures for steel V-braced frames

机译:钢制V型支撑框架的抗震性能和设计程序

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摘要

This paper presents an approach for designing low-rise steel framed buildings with V-bracing for severe earthquakes. A deterministic design philosophy is used with respect to earthquake-resisting ductile steel braced frames. Seismic inelastic behaviour of steel frames with V-bracing is discussed. A series of dynamic analyses was performed on a two-story V-braced frame, subjected to near-field ground motions. Post-elastic behaviour of braces and beams is discussed. From the results of dynamic analyses, the interrelations between the seismic forces in frame members are identified. The expressions for the maximum expected seismic design actions in those elements are derived, following the capacity design method. It is believed that this approach will result in stronger and more ductile frames that are capable of resisting the near-field ground motions.
机译:本文提出了一种用于设计V形支撑的低层钢框架建筑物的方法,以应对强烈地震。确定性设计理念用于抗震韧性球钢支撑框架。讨论了带V型支撑的钢框架的抗震非弹性行为。在两层V型支撑框架上进行了一系列动力分析,并进行了近场地面运动。讨论了支撑和梁的后弹性行为。根据动态分析的结果,可以确定框架构件中地震力之间的相互关系。遵循能力设计方法,推导了这些元素中最大预期地震设计作用的表达式。可以相信,这种方法将产生更坚固,更具延展性的框架,能够抵抗近场地面运动。

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