【摘要】 针对开洞约束砌体结构的抗震分析,目前国内外尚未提出简单有效的宏观单元模型。文中将等效框架模型引入约束砌体的建模中,详细介绍该模型在有限元软件OpenSEES中的实现方法,并结合一组实验原型验证其有效性。结果表明,模型pushover曲线与实验结果相符,该宏观单元模型可有效模拟约束砌体结构的整体地震响应。更多还原

【Abstract】 When researchers study the seismic performance of masonry structures, a common method is to build a macro-element model and perform pushover analysis. No effective macro-element model has been proposed at home and abroad for seismic analysis of confined masonry structures with openings. As a relatively mature macro-element model, the equivalent frame model has been widely used in the modeling of unreinforced masonry structures. In this paper, the equivalent frame model is introduced into the modeling of constrained masonry. The implementation of the model in OpenSEES is demonstrated in detail, and its validity is verified with an experimental prototype. The result shows that the pushover curve is in good agreement with the experimental data, and the macro-element model can effectively simulate the overallseismicresponseof confined masonry structure.更多还原