PHC管桩预应力传递性能试验研究  

Experimental Research on Prestressed Transfer Performances of PHC Piles

作　　者：吴锋[1,2] 邱松[1] 卓杨[1] 丁捍东[1] 

机构地区：[1]中交上海三航科学研究院有限公司,200032 [2]上海交通大学,200030

出　　处：《混凝土与水泥制品》2010年第3期35-37,共3页China Concrete and Cement Products

摘　　要：根据先张法预应力混凝土管桩(PHC)镦头释放、切割、大锤凿桩和风镐凿桩等不同截桩方式试验研究,分析了截桩方式对PHC管桩预应力传递长度的影响,并通过现场试验和理论分析,确定了PHC管桩截桩后的预应力传递长度,为设计提供了可靠的试验依据。To carry out a experimental research on pretensioned prestressed concrete pile by different pile cut-off ways such as end release,cutting,sledge hammer chisel and pneumatic pick etc.,the influence of different cut-off ways on its prestressed transfer length of PHC piles is studied.Meanwhile,the prestressed transfer length after cut-off has been determined through field tests and theoretical analysis,which provides a reliable basis for design.

关 键 词：预应力传递长度 PHC管桩 试验研究 

分 类 号：TU525[建筑科学—建筑技术科学]