可恢复功能的预应力装配式钢框架动力弹塑性分析

发布时间：2018-06-25 17:22

本文选题：可恢复功能结构 + 预应力装配式钢框架　；参考：《振动与冲击》2016年18期

【摘要】：针对提出的可恢复功能的预应力装配式钢框架结构体系,采用ABAQUS软件对其整体结构进行了模态分析和动力弹塑性分析,并与刚接框架及可恢复功能的预应力钢框架在不同水准地震动下的楼层基底剪力、层间位移角、残余位移角、等效塑性应变以及结构耗能等性能进行对比分析。研究表明:可恢复功能的预应力装配式钢框架在8度多遇、设防地震作用下基本保持弹性,在8度罕遇地震时结构主要依靠阻尼耗能和摩擦阻尼器耗能,非弹性耗能相对较少,减少了主体结构的塑性发展和损伤程度,具有良好的抗震性能和恢复结构功能的能力。可恢复功能的预应力装配式钢框架在层间位移角控制和减少主体结构塑性性能方面优于可恢复功能的预应力钢框架。
[Abstract]:The modal analysis and dynamic elastic-plastic analysis of the whole structure are carried out by Abaqus software in view of the pre-stressed prefabricated steel frame structure system with recoverable function. The results are compared with those of rigid frame and prestressed steel frame with recoverable function under different horizontal ground motion, such as floor shear force, interstory displacement angle, residual displacement angle, equivalent plastic strain and energy dissipation of the structure. The results show that the prestressing prefabricated steel frame with recoverable function is usually used in 8 degrees and remains elastic under earthquake protection. When the earthquake is rare at 8 degrees, the structure mainly depends on damping energy dissipation and friction damper energy dissipation, and the inelastic energy dissipation is relatively small. It reduces the plastic development and damage degree of the main structure, and has good seismic performance and the ability of restoring the structure function. The prestressing prefabricated steel frame with recoverable function is superior to the prestressed steel frame with recoverable function in controlling the displacement angle between floors and reducing the plastic properties of the main structure.
【作者单位】：北京建筑大学土木与交通工程学院;北京建筑大学工程结构与新材料北京市高校工程研究中心;
【基金】：国家自然科学基金面上项目(51278027) 北京市自然科学基金资助项目(8131002) 北京节能减排关键技术协同创新中心
【分类号】：TU391

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