大直径预应力桩弯剪性能试验研究  

Experimental study on bending shear behavior of large diameter prestressed pile

作　　者：忻俊杰 Xin Junjie(College of Civil Engineering and Architecture,Zhejiang University of Technology,Hangzhou 310000,China)

机构地区：[1]浙江工业大学土木工程学院,浙江杭州310000

出　　处：《山西建筑》2021年第20期87-89,92,共4页Shanxi Architecture

摘　　要：预应力混凝土桩由于具有桩身质量易于保证、造价低、施工速度快、单桩承载力高等优点,在基础工程中有着广泛的应用。为了定量研究施加预应力后,桩体承载力的提升效果,通过对预应力桩的抗弯抗剪性能进行试验研究,并与普通混凝土桩数据进行对比,结果表明施加预应力使桩的抗弯及抗剪性能均获得了较大提升。Prestressed concrete pile is widely used in foundation engineering due to its advantages of easy quality assurance,low cost,fast construction speed and high bearing capacity of single pile.In order to quantitatively study the improvement effect of pile bearing capacity after prestressing,through the experimental study on the bending and shear performance of prestressed pile,and compared with the data of ordinary concrete pile,the results show that the bending and shear performance of prestressed pile are greatly improved by prestressing.

关 键 词：预应力桩 应变变化 裂缝发展 抗弯性能 抗剪性能 

分 类 号：TU473.11[建筑科学—结构工程]