基于GSA指南的RC框架抗连续倒塌的线性静力分析

结构连续倒塌分析是结构抗连续倒塌能力评定和抗连续倒塌设计的基础,已成为当前土木工程界国内外的热点研究领域.结构连续倒塌的分析方法有线性静力分析、非线性静力分析、线性动力分析和非线性动力分析4种.基于设计效率和实用性,本文采用GSA指南的静力线性分析方法,对按我国规范设计的5层钢筋混凝土结构进行连续倒塌分析,选取不同位置拆除承重构件并计算剩余结构破坏情况的性能指标DCR值,最后,根据DCR值考察其抗连续倒塌能力.

Progressive collapse linear static analysis of RC frame structures based on GSA

Capacity assessment of the structural progressive collapse and progressive collapse design are based on structural progressive collapse analysis, which has became a hot research field in civil engineering sector. Progressive collapse analysis methods include linear static, nonlinear static, linear dynamic and nonlinear dynamic. On the basis of the design efficiency and practicality, in this paper, alternate path method static linear analysis in GSA guide was decided to use to analyze the five-story reinforced concrete structures which was designed by our country＇s existing norms, then, we select different load-beating elements to dismantle for calculating progressive collapse-resistant behavior indicators DCR values to investigate its ability in progressive collapse resistance.