5、的截面延性进行了研究,编制了梁截面曲率延性计算程序,探讨了该叠合梁的截面延性的主要影响因素及其规律;运用Matlab软件绘制出钢骨混凝土叠合梁和普通钢骨混凝土梁的M-θ曲线,得到了不同条件下钢骨混凝土叠合梁截面曲率延性系数。研究结果表明,纵筋的配筋率及配置方式、钢骨的配钢率及配置方式、翼缘的宽度等因素对钢骨混凝土叠合梁截面延性有较大的影响。关键词:钢骨混凝土叠合梁平面有限元法正截面受弯承载力M-θ相关曲线延性I华中科技大学硕士学位论文AbstractSteel reinforced concrete structureshave large
6、 stiffness, high loading capacityand superior seismic performance. These advantages make steel reinforced concrete structures become the preferred form of constructionin high-rise buildings,overload structures, large span and high-rise structuresin high intensity seismic a
7、rea.Over the years, with the rapid development of prefabricated buildings, the use of reinforced concrete components in construction is increasing. While theresearcheson composite componentsarelimited at presentand there are no uniformed design theories of composite compon
8、ents, in this paper westudy the normal section flexural bearing capacity and ductilityof