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(1 華北理工大學(xué)建筑工程學(xué)院, 唐山 063009; 2 河北省地震工程研究中心, 唐山 063009)
[摘要]通過對現(xiàn)澆鋼筋混凝土框架節(jié)點及不同預(yù)應(yīng)力下附加角鋼的預(yù)制裝配框架節(jié)點進(jìn)行低周反復(fù)荷載作用下的試驗,研究梁柱節(jié)點的破壞過程、滯回曲線、變形性能等抗震性能。試驗結(jié)果表明,相比現(xiàn)澆鋼筋混凝土框架節(jié)點,附加角鋼的預(yù)制裝配框架節(jié)點破壞程度輕,且有很好的變形恢復(fù)能力,殘余變形小,對抗震有利。
[關(guān)鍵詞]預(yù)制裝配框架結(jié)構(gòu); 節(jié)點; 角鋼; 抗震性能
中圖分類號:TV334, TU375文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2017)10-0071-04
Experimental study on effect of prestress on prefabricated frame joint with additional angle steel
Han Jianqiang1,2, Qi Feng1, Liu Yang1, Wang Yinhui1
(1 College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan 063009, China; 2 Earthquake Engineering Research Center of Hebei Province, Tangshan 063009, China)
Abstract:Through low cyclic loading tests of cast-in-place reinforced concrete frame joints and prefabricated frame joints with additional angle steel under different prestress, seismic performances of the beam-column joints were studied including failure process, hysteretic curve, and deformation properties and so on. Experimental results show that compared with cast-in-place reinforced concrete frame joints, prefabricated frame joints with additional angle steel has slighter damage, and there is a good energy dissipation capacity and small residual deformation, which is beneficial to seismic resistance.
Keywords:prefabricated frame structure; joint; angle steel; seismic performance
*國家自然科學(xué)基金項目資助(51208171),河北省科技支撐計劃項目(13273809),河北省高等學(xué)??茖W(xué)技術(shù)研究項目(ZD2014021)。
作者簡介:韓建強,博士,副教授,碩士生導(dǎo)師,Email: tshjq@139.com。