摘要
改进型后张法大管桩是将目前已有的预应力混凝土大直径管桩和PHC管桩的各自优点结合起来开发的新型管桩。为研究其抗弯性能,通过对6根桩进行现场抗弯试验,得出其抗裂弯矩和极限弯矩。结果表明,改进型后张法大管桩的抗裂性能有很大提高;还对大管桩桩结构抗弯试验方法提出了改进建议。
The modified large diameter post tensioned prestressed concrete piles are a type of new tubular piles developed from the merits of PHC cylinder piles and large diameter prestressed concrete cylinder piles. In order to study flexural perfor- mance of the large diameter post tensioned prestressed concrete cylinder pile, bending tests of six large diameter post ten- sioned prestressed concrete piles are shown in this paper, and the cracking capacity and ultimate bearing capacity are at- tained. The results show that the flexural performance of large diameter post tensioned prestressed concrete pile is excellent and some suggestions are given about the bending test method.
出处
《中国港湾建设》
2013年第1期45-49,共5页
China Harbour Engineering
关键词
预应力混凝土管桩
抗弯承载力
后张法
悬臂端
prestressed concrete pipe pile
flexural performance
post tensioned
cantilever
