大跨度门式起重机刚性支腿对结构刚度的影响分析  

Analysis of the Influence of Long-span Gantry Cranes' Rigid Legs on Structure Stiffness

作　　者：官保华[1] 甄圣威[1] 曾庆敦[1] 

机构地区：[1]华南理工大学土木与交通学院,广东广州510640

出　　处：《广东工业大学学报》2011年第4期83-86,共4页Journal of Guangdong University of Technology

摘　　要：利用有限元软件对某公司设计的83 m跨度A5型门式起重机的刚度进行分析,求得的主梁挠度超出《通用门式起重机》(GB/T14406-93)的规定,且结构产生较大的侧向位移.通过对刚性支腿结构设计进行修改,使得主梁最大挠度下降69.2%,侧向位移下降62.6%.Finite software was used to research the A5 Gantry Cranes designed by a company, whose span was 83 m. The research results indicate that the deflection of girder oversteps the formulations of General purpose gantry cranes （ GB/T14406-93 ）, coupled with a big lateral displacement. After a simple modification of the structure design for the rigid legs, the deflection of girder and the lateral displacement have reduced by 69.2% and 62.6%,respectively.

关 键 词：门式起重机 刚性支腿 吊车梁 侧偏 

分 类 号：TU32[建筑科学—结构工程]