腹板开洞钢梁新型洞口加强方法研究  

STUDY ON NEW REINFORCEMENT METHOD OF STEEL BEAMS WITH WEB OPENING

作　　者：廖文远[1] 周东华[1] 李龙起[1] 姚凯程[1] 

机构地区：[1]昆明理工大学建筑工程学院,昆明650500

出　　处：《低温建筑技术》2013年第9期69-71,共3页Low Temperature Architecture Technology

摘　　要：钢梁腹板开洞后,刚度和强度显著降低,在洞口周围设置加劲肋是常用的加强方法,现提出两种新型加强方式:人字形加劲肋和圆弧形加劲肋,通过有限元软件ANSYS对其力学性能进行非线性分析,并和几种常用的补强方式进行对比,得出结论:这两种新型加强方式都有明显的补强作用,为实际工程运用提供了合理建议。Due to web opening, stiffness and strength of steel beam decreased significantly. The common reinforcement method is setting stiffeners around the opening section. This paper present two kings of new method： herringbone stiffener shape and circular-arc stiffener shape, the nonlinear analysis is made and the FEA results of the two method and other common method is compared. Draws the con- clusion： the two new method is effective, and some reasonable suggestions are proposed for engineering application.

关 键 词：腹板开洞 新型加强方法 加劲肋 有限元 非线性 

分 类 号：TU375.1[建筑科学—结构工程]