曾  荣
    （中国华电工程（集团）有限公司，北京100048）

[摘要] 仅从管桩和管柱这两种应用来论述混凝土圆管截面的优缺点。论证了管桩适合用在以承受竖向压力为主，承受弯矩和剪力较小的建构筑物工程上。论证了管柱截面在节约材料方面的优势，在使用相同材料的情况下可以获得更大的抗弯承载力。
[关键词] 混凝土；圆形；圆管；管桩；管柱；承载力
中图分类号：TU318 +.1    文献标识码：A    文章编号：1002-848X(2011) S2-0195-02

    Application of the tube cross-section in concrete structure
    Zeng Rong
    ( Huadian Heavy Equipment Co., Ltd., Beijing 100048, China)

Abstract: The application of the pile and the pipe string in concrete structure to discuss the advantages and disadvantages of the tube cross-section were compared. On the one hand, the pile is suitable for the building structure projects which mainly withstand the vertical pressure and bear smaller moment and shear force. On the other hand, the pipe string has the advantage of saving material, which can be greater flexural capacity in the case of the same material.
Keywords: concrete; round; tube; the pile; the pipe string; capacity