一端固定另一端简支钢梁在均布荷载作用下整体稳定计算的研究  

The Research on the Whole Stable Computation of an-End-Fixed Another-End-Simple-Support Steel Beam Under Even Load

作　　者：周广师[1] 史文学[2] 张曰果[1] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]营口职业技术学院,辽宁营口115000

出　　处：《沈阳建筑大学学报（自然科学版）》2006年第4期561-566,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：辽宁省自然科学基金项目(2002-12-36)

摘　　要：目的编制工程设计应用的一端固定另一端简支热轧普通工字钢梁在均布荷载作用下的稳定系数φb表.方法进一步验证文献[1]提出的一端固定另一端简支钢梁在均布荷载作用下临界荷载计算式的适用范围,采用此计算式计算φb的数值并进行归并.结果验证表明,上述临界荷载计算式适合于用来计算均布荷载作用下一端固定另一端简支的各种跨度的双轴对称工字形等截面钢梁的临界荷载,取qk4作为这种梁整体稳定承载力的依据满足工程设计的精度要求.编制了热轧普通工字钢梁的整体稳定系数φb表,阐述了表中φb的应用方法.结论编制的热轧普通工字钢梁的整体稳定系数φb表具有足够的精度,可供工程设计参考.On the basis of the literature, this article confirms the critical load mathematical formula which literature proposes is suitable for calculating the critical load of any two axle symmetrical I-shaped constant section steel beam of an-end-fixed-another-end-simple-support steel beam under the even load function. Taking qk4as the basis of this kind of beam whole stable supporting capacity, which satisfies the engineering design that the precision requests to establish ψb a table. Thus, the established hot rolling ordinary I-beam overall stability coefficient ψb table has enough precision, which may provide reference for engineering design.

关 键 词：钢梁 屈曲 承载力 稳定系数 

分 类 号：TU391[建筑科学—结构工程]