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    曾  榮
    （中國(guó)華電工程（集團(tuán)）有限公司，北京100048）

[摘要] 僅從管樁和管柱這兩種應(yīng)用來論述混凝土圓管截面的優(yōu)缺點(diǎn)。論證了管樁適合用在以承受豎向壓力為主，承受彎矩和剪力較小的建構(gòu)筑物工程上。論證了管柱截面在節(jié)約材料方面的優(yōu)勢(shì)，在使用相同材料的情況下可以獲得更大的抗彎承載力。
[關(guān)鍵詞] 混凝土；圓形；圓管；管樁；管柱；承載力
中圖分類號(hào)：TU318 +.1    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：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