论文部分内容阅读
结合国内外已完成的冷弯薄壁型钢龙骨式复合墙体静力和动力试验研究成果,提出了冷弯薄壁型钢复合墙体的骨架曲线和恢复力模型。基于已经完成的屈服强度550 MPa高强超薄壁冷弯型钢足尺结构模型振动台试验,对结构在多遇和罕遇地震作用下的抗震分析方法进行了对比。结果表明:多遇地震作用下结构的弹性分析可采用底部剪力法、反应谱法和弹性时程分析法;罕遇地震作用下结构分析可采用静力非线性(推覆)分析和非线性时程分析法。依据GB 50011—2010《建筑抗震设计规范》的基本规定,提出了低层冷弯薄壁型钢龙骨体系结构的抗震设计实用方法建议。
Combined with the research results of static and dynamic tests of cold-formed thin-wall steel keel composite wall at home and abroad, the framework curve and the restoring force model of cold-formed thin-wall steel composite wall are proposed. Based on the completed shaking table test of 550 MPa high-strength ultra-thin cold-formed steel with yield strength of 500 MPa, the seismic analysis method under the action of frequent and rare earthquakes was compared. The results show that under the earthquake, the elastic analysis of the structure can adopt the method of bottom shear force, response spectrum and elastic time-history analysis. The structural analysis can be done by static nonlinear (nappe) analysis and nonlinear Time-history analysis. According to GB 50011-2010 Code for Design of Seismic Design of Buildings, a practical method of seismic design of low-rise cold-formed thin-walled steel keel system is put forward.