热轧H型钢梁在侧向冲击荷载作用下动力响应的参数分析  

PARAMETRIC ANALYSIS OF DYNAMIC RESPONSE OF HOT-ROLLED H-SHAPED STEEL BEAM UNDER LATERAL IMPACT LOAD

作　　者：王蕊[1] 裴畅[1] 

机构地区：[1]太原理工大学建筑与土木工程学院,山西太原030024

出　　处：《工程力学》2013年第B06期258-262,共5页Engineering Mechanics

基　　金：国家自然科学基金项目(51108296);高等学校博士学科点专项科研基金新教师类资助课题(20111402120005)

摘　　要：采用Abaqus有限元软件,对热轧H型钢梁在侧向冲击荷载作用下的基本力学性能进行了参数分析。首先,通过与已有热轧H型钢梁受侧向冲击的试验对比,验证了本分析模型的可靠性;进而,采用该模型模拟分析和讨论了冲击能、冲击物质量、冲击速度等参数对H型钢梁在侧向冲击下动力响应的影响。结果表明:采用该文建立的有限元分析模型,可较好地模拟热轧H型钢梁在侧向冲击作用下的动力响应过程,冲击能、冲击物质量和冲击速度对钢梁的动力响应有不同程度的影响。该文的结论为H型钢梁冲击后剩余承载能力的研究奠定了基础。The parametric analysis on the basic mechanical properties of a hot-rolled H-shaped steel beam under a lateral impact load was done by use of ABAQUS. The reliability of the finite element analysis model was verified through comparing with the existing experiment of an H-shaped steel beam subjected to a lateral impact. And then, this FEA model was used to research the dynamic response of the H-shaped steel beam subjected to a lateral impact. The main parameters include the impact energy, mass and impact velocity of an impact hammer. The results indicate that the FEA model built could accurately simulate the process of a hot-roUed H-shaped steel beam under a lateral impact load and the impact energy, the mass and impact velocity have different influences on the dynamic response of a H-shaped steel beam.

关 键 词：H钢梁 侧向冲击 动力响应 数值模拟 参数分析 

分 类 号：TU318[建筑科学—结构工程]