附加阻尼器的預(yù)應(yīng)力裝配框架節(jié)點試驗研究*
韓建強1,2,裴亞暉1,楊娜1,徐國強1,2
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(1 華北理工大學建筑工程學院,唐山 063009; 2 河北省地震工程研究中心,唐山 063009)
[摘要]通過對附加阻尼器的預(yù)應(yīng)力裝配式框架節(jié)點和現(xiàn)澆鋼筋混凝土框架節(jié)點進行低周往復(fù)荷載試驗,研究了現(xiàn)澆鋼筋混凝土框架節(jié)點和附加阻尼器的預(yù)應(yīng)力裝配式框架節(jié)點的裂縫發(fā)展、破壞形態(tài)、滯回曲線及位移延性等抗震性能。試驗表明:附加阻尼器的預(yù)應(yīng)力裝配式框架節(jié)點具有可觀的耗能能力、較強的變形恢復(fù)能力和較好的位移延性,整體抗震性能良好,在抗震設(shè)防地區(qū)具有良好的應(yīng)用前景。[關(guān)鍵詞]預(yù)應(yīng)力裝配框架; 現(xiàn)澆鋼筋混凝土框架; 阻尼器; 節(jié)點; 抗震性能中圖分類號:TU352.11 文獻標識碼:A 文章編號:1002-848X(2015)12-0061-04Experimental study on the node of prestressed assembly frame with additional dampersHan Jianqiang1,2, Pei Yahui1, Yang Na1, Xu Guoqiang1,2(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:Based on low cyclic loading tests on the node of the prestressed assembly frame with additional dampers and the cast-in-situ reinforced concrete frame, seismic performances of two frames were studied including crack distribution, failure pattern, hysteresis curve and displacement ductility. The results show that the node of the prestressed assembly frame, which has good seismic dissipation ability, deformation recovery ability and good displacement ductility. The integrated structure has good seismic performance and can be popularized and applied in seismic precautionary zones.Keywords: prestressed assembly frame; cast-in-situ reinforced concrete frame; damper; node; seismic performance
*國家自然科學基金項目(51208171),河北省科技支撐計劃項目(13273809),河北省高等學校科學技術(shù)研究項目(ZD2014021)。作者簡介:韓建強,博士,副教授,碩士生導師,Email: tshjq@139.com。