钢框架梁柱端板连接节点受力及设计方法-结构工程专业论文.docxVIP

Subject Subject ：Research Oll Behavior and Design Method of Beam—Column End-plate in Steel Frame Speciali锣：Structural Engineering Name ：SuWeiwei (signature)5选边盛逊 lnstructor：Yhn Yhemei (Signatu嘞Z垫．丝鱼盥墅 Abstract The revelation was gained after the t994 Northrige earthquake and the 1995 Kobe earthquake earthquake，which bolt conection have good behavioL These earthquake alse arouse engineers to resurvey the behavior of end-plate connections．it is well known that end—plate connection have art excellent energy dissipating mechanism，which can provide more capacity for yielding and ductility,belong to semi-rigid connections，become the hotspot of research and application at present．Because of the geometry complexity of bolted beam—column end·plate connections，the strength models presented in the past few de：cades carl not predict the ultimate strength of end-plate connection in satisfactory precision，and bolt is impotant problem．so research on behavior of beam-column end-plate connection is not only significant for theoretical aspect，but also important in practice． Usingthe generalfinite elementprogrammingpackageofANSYS8，0，The study ofSteel beam—column end-plate connections is made，considering synthetically nonlinear(material， geometry and contact)．Elastic—plastic finite element analyses are carried out among 15 species of 6 series under monotonic 10ads．in order to discuss the influence of parameters including thickness and width of end-plate，stiffening rib，friction coefficients，bolt diameter and bolt pretension forces．The main scopes ofthis paper include Elastic-plastic finite element analyses are carried out between monotonic loads in order to study the behavior of end-plate． The main result of this paper indicate：(1)Carrying capacity of joints mostly lies on the thickness of end-plate and the rib stiffeners，changing bolt pretension forces and friction coefficients and so on have little effect on it．Carrying capacity of connections and initial