火灾后SRC异形柱框架的抗震性能及损伤指标的量化

The seismic performance of SRC special-shaped column frame after a fire and the quantization of damage indexes

以火灾后SRC异形柱框架的破坏形态作为出发点,重点研究了火灾后SRC异形柱框架的抗震性能及各性能水平损伤指标的量化,运用有限元分析软件SNAP对计算模型进行数值模拟,通过理论分析与数值模拟相结合的方法展开研究。研究表明,火灾降低了框架的整体抗震性能,受火构件的损伤深度影响了框架不同性能水平的损伤指标。

With the damage form of SRC special-shaped column frame which has experienced fire as a starting point, the seismic performance of SRC special-shaped column frame after a fire and quantization of the damage inde- xes of each performance level were studied emphatically. The finite element analysis software SNAP was used for the numerical simulation of calculation module, the study was carried out by combining theoretical analysis and numerical simulation method. The research shows that, the fire reduces the overall seismic performance of the frame, and the fire damage depth of the components affects the frame damage index of different performance level.