端弯矩作用下钢梁设计公式与评价  

EVALUATION OF FORMULA ON THE BUCKLING OF STEEL PLATE GIRDERS UNDER END MOMENTS

作　　者：张文福[1,2] 董清会[1,2] 计静[1,2] 刘迎春[1,2] 杜娟[1,2] 

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318 [2]黑龙江省防灾减灾工程及防护工程重点实验室,黑龙江大庆163318

出　　处：《低温建筑技术》2012年第9期39-41,共3页Low Temperature Architecture Technology

基　　金：黑龙江省教育厅重点项目(12511z004);国家自然科学基金资助项目(51178087);黑龙江省教育厅科学技术研究面上项目(12511022)

摘　　要：根据Salvadori公式,提出一种新的计算H型钢梁在不等端弯矩作用下的侧扭屈曲临界弯矩值的公式,通过有限元ABAQUS和ANSYS两种软件进行模拟并与提出的公式进行对比,对比结果良好,说明该公式建立的正确性。为了进一步验证公式的适用性,文中还将该公式与各国规范公式进行了对比分析,对比结果吻合良好,由此得出该公式对实际的工程有指导作用。According to the analysis about Salvadori formula,a new formula about the critical buckling bending moment was put forward when the H shape steel beam are under unequal end moments in this paper.Through the comparative analysis between finite element software ANSYS and ABAQUS and the formula,it shows that they are matching good,and for the further prove that the new formula is correct.In order to test the applicability of the formula,the formula was compared with the different countries such as Europe,the United States and national code,and so on.To our surprised,the contrast results was matching good.At last,it is proved that they have higher engineering application value.

关 键 词：H形钢梁 侧扭屈曲 ANSYS ABAQUS 壳单元 

分 类 号：TU391[建筑科学—结构工程]