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(北京市建筑工程研究院有限責任公司, 北京 100039)
[摘要]為研究裝配式混凝土框架結構的抗震性能,對4個采用大直徑灌漿套筒的足尺裝配式混凝土框架結構梁-板-柱節(jié)點試件進行低周反復加載試驗,對裝配式混凝土框架結構中節(jié)點、邊節(jié)點及其現(xiàn)澆對比節(jié)點的破壞形態(tài)、滯回曲線、位移延性、剛度退化、耗能能力等進行了研究。結果表明,此類裝配式混凝土框架結構中節(jié)點、邊節(jié)點與其現(xiàn)澆對比節(jié)點均為梁端塑性鉸破壞,抗震性能較好。
[關鍵詞]裝配式; 框架節(jié)點; 低周反復加載試驗; 抗震性能
中圖分類號:TU375-4文獻標識碼:A文章編號:1002-848X(2018)07-0023-04
Experimental study on seismic behavior of beam-slab-column joints of prefabricated concrete frame structure
Sun Yanbo, Li Chenguang, Yang Xu
(Beijing Building Construction Research Institute, Beijing 100039, China)
Abstract:In order to study the seismic behavior of prefabricated concrete frame structure, 4 full-scale prefabricated concrete beam-slab-column joints with grouting sleeves of large diameter were investigated under low-cycle reversed loading test. The failure modes, hysteresis curves, displacement ductility, stiffness degradation and energy dissipation capacity of the prefabricated concrete frame interior joints, exterior joints and the comparison cast-in-place joints were studied. The results show that all the joints achieve the failure mechanism of beam plastic hinge and have equivalent seismic behavior when comparing with cast-in-place joints.
Keywords:prefabricated; frame joint; low-cycle reversed loading test; seismic behavior
*北京市科學技術委員會科技計劃項目(Z121100007612010,Z121100007612008)。
作者簡介:孫巖波,碩士,工程師,Email: sunyanbo1111@163.com。