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（1華南理工大學(xué)土木與交通學(xué)院, 廣州 510641； 2 廣東省建筑科學(xué)研究院集團(tuán)股份有限公司, 廣州 510500； 3 廣東省建科建筑設(shè)計(jì)院有限公司, 廣州 510010；4 加拿大女王大學(xué)土木工程學(xué)院, 金斯頓 K7L3N6）
［摘要］基于后插縱筋連接和后插縱筋套橡膠管兩種連接方式，制作了由預(yù)制混凝土管樁作為預(yù)制管并在其核心澆筑混凝土的新型預(yù)制混凝土組合管柱，研究了不同連接方式的試件在低周往復(fù)荷載作用下的破壞現(xiàn)象、滯回曲線、骨架曲線、承載力、變形和延性。結(jié)果表明：兩種連接方式的管柱均先在梁端出現(xiàn)裂縫，然后在節(jié)點(diǎn)區(qū)出現(xiàn)裂縫，最終節(jié)點(diǎn)破壞造成承載力下降，而柱身并未出現(xiàn)裂縫；兩種連接方式的管柱滯回曲線呈現(xiàn)梭形，滯回環(huán)飽滿，耗能能力良好；兩種連接方式的管柱承載力接近，延性系數(shù)和彈塑性層間位移角滿足規(guī)范的要求，變形能力良好；新型預(yù)制混凝土組合管柱的抗震性能較好，但在設(shè)計(jì)時應(yīng)該對節(jié)點(diǎn)進(jìn)行加強(qiáng)。
［關(guān)鍵詞］新型預(yù)制混凝土組合管柱；抗震性能；滯回曲線；骨架曲線；耗能能力；延性
中圖分類號：TU317+.2文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)07-0046-06
Experimental study of seismic behavior of new precast concrete composite pipe column
FAN Zhibo1, XU Qigong2,3, GUO Minlong2, MAO Na3, XU Caiwei4
(1 College of Civil Engineering and Transportation， South China University of Technology， Guangzhou 510641， China; 2 Guangdong Provincial Academy of Building Research Group Co., Ltd., Guangzhou 510500, China; 3 Jianke Architecture Design Institute of Guangdong Province, Guangzhou 510010, China; 4 Department of Civil Engineering, Queen′s University， Kingston K7L3N6, Canada)
Abstract:Based on the two connection modes of post-insertion longitudinal reinforcement and post-insertion longitudinal reinforcement with rubber hose, a new type of precast concrete composite pipe column with precast concrete pipe piles as precast pipes and concrete pouring at the core was fabricated. And the damage phenomenon, hysteresis curve, skeleton curve, bearing capacity, deformation and ductility of test specimens with different connection methods under low-cycle reciprocating load were studied. The results show that: the pipe column of the two connection modes have cracks at the beam first, and then at the joint area. Finally, the failure of the joints results in the decrease of bearing capacity, but no cracks appear in the column body. The hysteretic curves of the pipe column of two connection modes are spindle-shaped, with full hysteretic loop and good energy dissipation capacity. The bearing capacity of pipe column of the two connection modes is close, the ductility coefficient and the elastic plastic displacement angle meet the requirements of the specification, and the deformation capacity behaved well. The new precast concrete composite pipe column has better seismic behavior, but the joints should be strengthened in design.
Keywords:new precast concrete composite pipe column;seismic behavior;hysteresis curve;skeleton curve;energy dissipation capacity;ductility
作者簡介：范枝波，碩士研究生，Email:1101063269@qq.com；通信作者：徐其功，博士，教授級高工，Email: xuqigong2005@sina.com。
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