XXXXXXXX 大学本科生课程论文题 目：H 型钢残余应力的讨论现状学生姓名：学 号：专 业：班 级：指导老师：H 型钢残余应力的讨论现状摘 要H 型钢是一种截面面积分配更加优化、强重比更加合理的经济断面高效型材，因其断面与英文字母“H”相同而得名。由于 H 型钢的各个部位均以直角排布，因此 H 型钢在各个方向上都具有抗弯能力强、施工简单、节约成本和结构重量轻等优点，已被广泛应用。 H 型钢分为热轧 H 型钢 和焊接 H 型钢（H）两种，热轧 H 型钢又分为宽翼缘 H 型钢（HW）中翼缘 H型钢(HM)和窄翼缘 H 型钢（HN）三种。众所周知，钢材中残余应力的存在对钢材的使用性能尤其是疲劳性能有很大影响。钢材中残余应力的形成主要有三个途径：钢材在热轧或焊接后其断面的不均匀冷却、钢材组织发生相变、钢材受到矫直等冷加工。本课题以 H 型钢为讨论对象，分别从热轧后冷却残余应力、矫直后残余应力、焊接后残余应力三个方面讨论 H 型钢残余应力的讨论现状。关键词：H 型钢；残余应力；热轧；矫直；焊接The current research status of h-beam residual stressAbstractH section steel is a kind of cross section area allocation optimization and weight more reasonable than economic section effective profiles, because of its cross section the same as the English letter "H" the name. Since the different parts of h-beam with orthogonal configuration, so h-beam in all directions has bending capacity, simple construction, cost saving and structure light weight etc, and has been widely used. H-beam is divided into hot rolled H section steel and welding h-beam (H), hot-rolled h-beam is divided into wide flange h-beam (HW) of the h-beam flange (HM) and narrow the h-beam flange (HN) three. It is well known that the presence of residual stress in steel on the use of steel performance especially has a great impact on the fatigue performance. , the formation of the residual stress in steel there are three main ways: in the cross section of the steel after hot rolling or weldi...
