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陳俊瑋，劉漢賦，袁煥鑫，胡曉斌
（ 武漢大學(xué) 土木建筑工程學(xué)院 ，湖北 武漢 430072 )

摘   要 ：針對用于地鐵車輛段檢修庫的新型裝配式混凝土空心檢修柱，分別制作預(yù)制混凝土空心柱 、預(yù)制混凝土實(shí)心柱及現(xiàn)澆混凝土空心柱試件，采用擬靜力試驗(yàn)及有限元數(shù)值模擬，對其抗震性能進(jìn)行對比研究。結(jié)果表明：試件破壞形態(tài)均為剪彎破壞，承載能力及退化性能較為接近，變形能力好，但裝配式空心試件耗能能力及延性略差；對于裝配式混凝土空心檢修柱，可以將其截面簡化成工字形，采用規(guī)范中的公式來計(jì)算承載力；與裝配式混凝土實(shí)心柱相比，裝配式混凝土空心柱可以大幅度節(jié)約材料，且基本上實(shí)現(xiàn)了“等同現(xiàn)澆 ”；當(dāng)軸壓比變大時，裝配式混凝土空心柱水平承載力先變大后變小，耗能能力變差。

關(guān)鍵詞：裝配式混凝土空心柱 ；擬靜力試驗(yàn) ；抗震性能 ；數(shù)值模擬

中圖分類號：TU375 . 3   

文獻(xiàn)標(biāo)志碼：A    

文章編號：1005- 8249  (2024)  03- 0113- 07 
DOI：10. 19860/j.cnki.issn1005 - 8249.2024.03 .022

 

CHEN Junwei , LIU Hanfu , YUAN Huanxin , HU Xiaobin

(School of Civil Engineering , Wuhan University , Wuhan 430072 , China)

Abstract : To study seismic performance of the hollow precast concrete column used in the metro overhauling depot , three specimens including a hollow precast concrete column , a solid precast concrete column and a hollow cast - in - situ concrete column were constructed and investigated through pseudo - static test and finite element simulation. The results show that the failure modes of the specimens are all flexure - shear type. In addition , the bearing capacity and degradation performance are similar , and the deformation ability is good. However , the energy dissipation capacity and ductility of the hollow precast specimen is relatively poorer. For the hollow precast concrete column , the section can be simplified into an I - shaped one to compute the bearing capacity using the formulas in the code. Compared with the solid precast concrete column , the hollow one has a great advantage of saving materials while emulating the cast - in - situ one. As the axial compressive ratio increases , the bearing capacity of the hollow precast concrete column rises first and then drops while the energy dissipation capacity decreases. 

Keywords : hollow precast concrete column; pseudo - static test; seismic performance; numerical simulation

作者簡介： 陳俊瑋  (1998—) ,  男 ，碩士研究生 ，研究方向： 結(jié)構(gòu)抗震。

通信作者： 胡曉斌  (1979—) ,   男 ，博士 ，教授 ，研究方向： 結(jié)構(gòu)抗震。

收稿日期：2022- 12- 31