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首页> 外文期刊>International journal of steel structures >Design of Special Truss Moment Frames Considering Progressive Collapse
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Design of Special Truss Moment Frames Considering Progressive Collapse

机译：考虑渐进塌陷的特殊桁架弯矩框架设计

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In this study the progressive collapse resisting capacity of the Special Truss Moment Frames (STMF) was investigated. To this end STMF with various span lengths, numbers of story, and lengths of special segment were designed. Their performances against progressive collapse were evaluated based on arbitrary column removal scenario. It was observed that all the model structures designed per the AISC Seismic Provision collapsed as a result of plastic hinge formation at special segment when a column was suddenly removed. A design procedure was developed based on the energy balance concept to prevent progressive collapse. The model structures redesigned using the developed design procedure turned out to remain stable after a column was suddenly removed and satisfy the acceptance criteria of the GSA guidelines.
机译：在这项研究中，研究了特殊桁架矩框架（STMF）的渐进抗倒塌能力。为此，设计了具有不同跨距长度，层数和特殊段长度的STMF。基于任意色谱柱去除方案评估了它们针对渐进塌陷的性能。观察到，当突然拆除圆柱时，根据AISC地震规定设计的所有模型结构均由于特殊段上的塑料铰链形成而坍塌。基于能量平衡概念开发了一种设计程序，以防止逐渐崩溃。使用开发的设计程序重新设计的模型结构竟然在突然移开色谱柱后仍能保持稳定，并且符合GSA准则的接受标准。

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