朱维平，  徐志山
    （大连先锋建筑设计咨询有限公司，大连 116021）

[摘要] 在抗震设防烈度为8度及以上的地区，当建筑物的基础采用预应力高强混凝土管桩时，应验算桩的抗剪承载力能否满足较大底部剪力的要求。通过某小区预应力高强混凝土管桩的结构设计，结合桩的水平承载力试验，探讨8度区预应力高强混凝土管桩的适用性，并指出了布桩设计时应注意的关键问题。
[关键词] 预应力高强混凝土管桩；水平承载力；水平位移
中图分类号：TU318    文献标识码：A  文章编号：1002-848X(2012) Sl-0847-03

Experimental study on horizontal bearing capacity of prestressed high-intensity concrete pipe pile
    Zhu Weiping, Xu Zhishan
    ( Dalian Pioneer Architectural Design&Consulting Co., Ltd., Dalian 116021, China)

Abstract: In areas of the eight degree seisnuc fortification intensity and above, when the prestressed high-intensity concrete pipe pile is used in building foundation, it should be checked that a pile of shear bearing capacity can meet the requirements of the larger bottom shear. The applicability of prestressed high-intensity concrete pipe pile at the eight degree seismic fortification intensity was discussed, through structure design of prestressed high-intensity concrete pipe pile and horizontal bearing capacity test, and the key problems of the pile arrangement design were pointed out.
Keywords: prestressed lugh-intensity concrete pipe pile; horizontal bearing capacity; horizontal displacement