拉-压预应力混凝土梁的试验研究分析  

Test and analysis of tensile-compression prestressed concrete beam

作　　者：安静波[1] 

机构地区：[1]合肥学院建筑工程系,安徽合肥230022

出　　处：《黑龙江工程学院学报》2013年第4期35-38,共4页Journal of Heilongjiang Institute of Technology

基　　金：安徽高校省级自然科学研究重点项目(KJ2010A291)

摘　　要：研究拉—压预应力混凝土梁模型梁的试验结果,数值模拟对梁全过程的工作状态。研究结果表明:预压钢管能有效对混凝土施加预压应力;在一定范围内,高预应力度的拉-压预应力混凝土梁的弹性性能更优越,承载力发挥较好;预压钢管的作用可以代替部分预应力钢绞线的作用;钢管端部锚固区域的混凝土出现应力集中,设计、施工中加强此处的构造措施。A tensile-compression prestressed concrete model beam is presented with a numerical simulation of beam performance whole process analysis. Research results shows that the pre-compression steel pipe can offer concrete effective pre-tension stress; elastic properties and bearing capacity are more superior for high pre-stress degree this tensile-compression prestressed concrete beam within limits; the effect of pre- compression steel pipe can be used as partial prestressed steel strand; The end anchorage zone of this pipe meets the concrete stress concentration, which shall be strengthened in the Engineering design and construction.

关 键 词：拉-压预应力 弹性性能 全过程分析 

分 类 号：TU378[建筑科学—结构工程]