对冲切与剪切问题的思考  

Research on Punching Failure and Shearing Failure

作　　者：杨雪强[1] 刘勇健[1] 张建龙[1] 

机构地区：[1]广东工业大学建设学院,广东广州510006

出　　处：《广东工业大学学报（社会科学版）》2009年第B06期170-172,175,共4页Journal of Guangdong University of Technology(Social Sciences Edition)

基　　金：广东工业大学建设学院立项的广东省土木工程名牌专业建设专项基金"土力学核心教学内容研究及其在多媒体教学中的体现"资助

摘　　要：在基础工程课程设计中,冲切破坏和受剪破坏在概念上容易引起混乱,从而带来设计计算上的混乱。文章详细论述了两者破裂面的形成与滑移均是由剪切受力机制引起的,通过对比计算,指出了冲切破坏与剪切破坏的统一与差异之处。Concrete punching failure and shearing failure, which are usually difficult to be understood from principals and concepts by civil engineering students during their foundation engineering course studying, and will be caused some calculating confusions in sequence of the course design concerning with punching and shear issues about reinforced concrete spread foundation and pile foundation. Firstly, it is demonstrated that forming and slippage of the punching and shearing failure surfaces, which have same shear failure mechanism, are both induced by the shear stress in detail; and secondly, corresponding differences between punching and shearing failures, through the punching and shearing calculating result＂ comparisons, are further＂ pointed out in this paper in the end.

关 键 词：荷载设计值 冲切破坏 剪切破坏 基础工程课程 教学改革 

分 类 号：G642[文化科学—高等教育学]