设加劲肋防止畸变屈曲卷边Z型钢梁的性能研究  

RESEARCH ON THE METHOD OF SETTING STIFFENERS TO PREVENT THE DISTORTION BUCKLING OF LIPPED Z-SHAPED BEAMS

作　　者：刘连杰 惠颖[1] LIU Lianjie;XI Ying(Department of Civil Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学土木工程系

出　　处：《钢结构（中英文）》2019年第12期26-30,共5页Steel Construction（Chinese & English）

摘　　要：采用设置加劲肋的方法控制冷弯薄壁卷边Z型钢梁在均布荷载作用下的畸变屈曲,应用有限元软件ABAQUS分别对4种带有加劲肋不同卷边角度的冷弯薄壁卷边Z型钢梁进行分析。综合考虑屈曲荷载的提升程度和用钢量,给出最佳加劲肋形式。研究结果表明卷边角度越小,加劲肋加固效果越好。The method of setting stiffeners to prevent the distortional buckling of cold-formed thin-walled lipped Z-shaped steel beams under uniform load was studied. The finite element software ABAQUS was used to analyze the defferent lipped angles Z-beams with four kinds of stiffeners. Considering the increment of buckling loads and the amount of steel used, the best stiffener layout was given. The results showed that the smaller the lipped angle, the better the reinforcement effect of the stiffener.

关 键 词：卷边Z型钢梁 均布荷载 畸变屈曲 加劲肋 

分 类 号：TU392.1[建筑科学—结构工程]