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(1 中國建筑科學研究院有限公司, 北京 100013; 2 北京住宅產業化集團有限公司, 北京 100161;3 承德綠建建筑節能科技股份有限公司, 承德 067000)
[摘要]提出了一種新型的裝配整體式剪力墻結構形式,其預制構件為帶混凝土貫通肋的空心墻構件,現場在空腔內搭接豎向鋼筋、澆筑混凝土形成疊合剪力墻構件。為研究新型預制剪力墻的抗震性能,以某實際工程為背景,完成6個足尺剪力墻試件的擬靜力試驗,主要模擬不同剪跨比及不同形式的墻體。試驗結果表明,提出的新型預制剪力墻試件的承載力、剛度、破壞模式、耗能能力等性能與現澆試件一致,可按與現澆結構相同的方法進行此類裝配整體式剪力墻構件的設計。
[關鍵詞]裝配整體式剪力墻;縱肋疊合剪力墻;鋼筋搭接連接;擬靜力試驗;抗震性能
中圖分類號:TU375-2文獻標識碼:A文章編號:1002-848X(2021)05-0001-07
Experimental study on seismic behavior of monolithic pre-cast shear walls superposed with longitudinal ribs
WANG Jun1, TIAN Chunyu1, YANG Sizhong2, ZHU Fengqi3, ZHANG Zhonglin2, LI Yang3, SHI Haiqing3, ZHOU Yihang1
(1 China Academy of Building Research, Beijing 100013, China; 2 Beijing Building Industrialization Group Co., Ltd., Beijing 100161, China; 3 Chengde Green Building Energy Saving Technology Co., Ltd., Chengde 067000, China)
Abstract:A new type of pre-cast monolithic shear wall structural system was proposed, the pre-cast component is hollow wall component with concrete longitudinal ribs,and vertical steel bars are overlapped in the cavity and concrete is poured on site to form a composite shear wall component. In order to study the seismic performance of the new pre-cast shear wall, based on an actual project, a pseudo-static test of 6 full-scale shear wall specimens was completed, mainly to simulate different shear span ratios and different forms of walls. The test results show that the bearing capacity, stiffness, failure mode, energy dissipation capacity of the new type of pre-cast shear wall specimens are in accord with the cast-in-place specimens. The new type of pre-cast shear wall can be designed in the same way as the cast-in-place structure.
Keywords:pre-cast monolithic shear wall;shear wall superposed with longitudinal rib;reinforcement lapping;pseudo-static test;seismic performance
*國家重點研發計劃項目資助(2016YFC0701900)。
作者簡介:王俊,碩士,工程師,Email:wangjun@cabrtech.com。