【摘要】 波纹型钢是一种新型的型材,由其作为腹板形成的波纹腹板型钢结构,相较于普通型钢有更好的力学性能和更少的用钢量,而其组成结构的动力学特性是结构抗震分析的关键问题。本文采用有限元方法分别对波纹腹板H型钢构件与普通工字钢构件组成结构进行模态分析,比较两种结构前四阶的振型变形图和自振频率。同时采用弹塑性时程分析方法对两种结构在地震波作用下的最大层间位移和最大应力值进行比较分析。通过对比波纹腹板钢结构和普通钢结构的动力特性,以及分析地震波作用下两种结构的反应特点,为波纹腹板钢结构动力特性的研究提供理论支持。更多还原

【Abstract】 The corrugated steel is a new type of profile, which is used as a corrugated web-type steel structure. Compared with ordinary steel structure, it has better mechanical properties and less steel consumption.The dynamics characteristic of this kind of structure is the key issue of structural anti-seismic analysis. In this paper, the modal analysis of the structures of the H-beam with corrugated webs and the ordinary I-beam were calculated by the finite element method, and the first four orders of the two structures and the natural vibration frequencies were compared. At the same time, the elasto-plastic time-history analysis method was used to analyze the maximum inter-layer displacements and maximum stress values. The comparison of the dynamic characteristics between corrugated web steel structure and ordinary steel structure provides theoretical support for the study of dynamic characteristics of the corrugated web steel structure.更多还原