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（1 河北工業(yè)大學(xué)土木與交通學(xué)院， 天津 300401；  2 河北省建筑科學(xué)研究院， 石家莊 050021）

［摘要］為研究裝配整體式異形柱框架節(jié)點(diǎn)抗震性能，對(duì)5個(gè)足尺梁柱節(jié)點(diǎn)試件進(jìn)行低周反復(fù)荷載試驗(yàn)。試件分別為1個(gè)“一”形柱傳統(tǒng)現(xiàn)澆節(jié)點(diǎn)試件； 3個(gè)規(guī)范要求的裝配整體式框架節(jié)點(diǎn)試件，其柱形狀分別為“一”形、L形和T形； 1個(gè)為一種新型節(jié)點(diǎn)預(yù)制的T形柱節(jié)點(diǎn)試件。試驗(yàn)得到試件的荷載-位移曲線和骨架曲線，并分析其承載力和延性等抗震性能指標(biāo)。研究結(jié)果表明：裝配整體式“一”形柱框架節(jié)點(diǎn)試件與傳統(tǒng)現(xiàn)澆的“一”形柱節(jié)點(diǎn)試件相比，承載力、剛度無(wú)明顯提高，延性、耗能能力更優(yōu)； 裝配整體式L形柱和T形柱框架節(jié)點(diǎn)試件與同類“一”形柱框架節(jié)點(diǎn)試件相比，延性較差，剛度、承載力、耗能能力更優(yōu)； 裝配整體式T形柱與L形柱框架的同類節(jié)點(diǎn)試件相比，剛度、承載力、延性都要更優(yōu)，耗能能力略差； 節(jié)點(diǎn)預(yù)制的T形柱節(jié)點(diǎn)試件與裝配整體式T形柱框架節(jié)點(diǎn)試件相比，剛度、承載力、延性接近，耗能能力略差； 兩個(gè)“一”形柱節(jié)點(diǎn)試件均發(fā)生節(jié)點(diǎn)剪切破壞，其余試件發(fā)生梁端彎曲破壞。

［關(guān)鍵詞］裝配式框架結(jié)構(gòu)； 抗震性能； 剛度退化； 耗能能力； 低周反復(fù)荷載試驗(yàn)

中圖分類號(hào)：TU398-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)22-0021-06

Experimental study on seismic behavior of precast integral special-shaped column frame joints

WANG Ling1, YANG Peijian1, FU Sujuan2

(1 College of Civil and Transportation, Hebei University of Technology, Tianjin 300401， China; 2 Heibei Academy of Building Research, Shijiazhuang 050021， China)

Abstract:In order to study the seismic performance of precast integral special-shaped column frame joints, low cyclic loading tests on five full-scale beam column joint specimens were subjected. One  specimen is the “一” shaped column cast-in-situ joint specimen; three precast integral frame joint specimens required by the specification, their column shapes are "一" shaped，L-shaped and T-shaped respectively; one specimen is a new type of prefabricated T-shaped column joint specimen. Load-displacement curves and skeleton curves of specimens were obtained by test. The seismic performance indicators such as bearing capacity and ductility were also analyzed. The research results show that compared with the traditional "一" shaped column cast-in-situ joint specimens, the precast integral "一" shaped column frame joint specimens have better ductility and energy consumption capacity，but the bearing capacity and rigidity have no significant increase; compared with similar "一" shaped column frame joint specimens, precast integral L-shaped and T-shaped column frame joint specimens have higher bearing capacity, rigidity and energy consumption capacity, but the ductility is lower； compared with  the similar L-shaped column joint specimens, the precast integral T-shaped column frame joint specimens have better rigidity, bearing capacity and ductility and the energy consumption capacity are slightly worse; compared with  the precast integral T-shaped column frame joint specimens, the rigidity, bearing capacity and ductility of the joint prefabricated T-shaped column joint specimens are close, and the energy consumption capacity is slightly worse; two "一" shaped column joint specimens occurred shear failure of joint, the rest of the specimens occurred bending failure at beam end.

Keywords:precast frame structure; seismic performance; rigidity degradation; energy consumption capacity； low cyclic loading test

*河北省建設(shè)科技研究計(jì)劃項(xiàng)目（2015-7），河北省高等學(xué)?？茖W(xué)技術(shù)研究項(xiàng)目（QN2015143）。

作者簡(jiǎn)介：王玲，博士，副教授，碩士生導(dǎo)師，Email: wlark@sina.com； 通信作者：楊佩劍，博士研究生，Email：13132276339@163.com。