中国港湾建设
中國港灣建設
중국항만건설
CHINA HARBOUR ENGINEERING
2013年
1期
45-49
,共5页
预应力混凝土管桩%抗弯承载力%后张法%悬臂端
預應力混凝土管樁%抗彎承載力%後張法%懸臂耑
예응력혼응토관장%항만승재력%후장법%현비단
prestressed concrete pipe pile%flexural performance%post tensioned%cantilever
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.
改進型後張法大管樁是將目前已有的預應力混凝土大直徑管樁和PHC管樁的各自優點結閤起來開髮的新型管樁.為研究其抗彎性能,通過對6根樁進行現場抗彎試驗,得齣其抗裂彎矩和極限彎矩.結果錶明,改進型後張法大管樁的抗裂性能有很大提高;還對大管樁樁結構抗彎試驗方法提齣瞭改進建議.
개진형후장법대관장시장목전이유적예응력혼응토대직경관장화PHC관장적각자우점결합기래개발적신형관장.위연구기항만성능,통과대6근장진행현장항만시험,득출기항렬만구화겁한만구.결과표명,개진형후장법대관장적항렬성능유흔대제고;환대대관장장결구항만시험방법제출료개진건의.
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 performance of the large diameter post tensioned prestressed concrete cylinder pile,bending tests of six large diameter post tensioned prestressed concrete piles are shown in this paper,and the cracking capacity and ultimate bearing capacity are attained. 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.
