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(1 中國建筑科學研究院有限公司, 北京 100013; 2 國家建筑工程技術(shù)研究中心, 北京 100013)
[摘要]大力發(fā)展和推廣應(yīng)用高強混凝土材料滿足我國可持續(xù)發(fā)展戰(zhàn)略需求,促進建筑領(lǐng)域“雙碳目標”的實現(xiàn),已成為我國高層建筑領(lǐng)域的主要發(fā)展方向之一?;趹?yīng)用高強材料的過程中經(jīng)常面臨的材料強度與延性難以統(tǒng)一協(xié)調(diào)的問題,闡述了高強混凝土在裝配式高層建筑中的應(yīng)用思路,結(jié)合裝配式建筑的特點,提出了一種新型的高強混凝土裝配式高層框架結(jié)構(gòu)體系,該結(jié)構(gòu)體系采用具有大變形能力的裝配式節(jié)點和消能減震技術(shù),并對該結(jié)構(gòu)體系進行了抗震性能試驗。結(jié)果表明:該結(jié)構(gòu)體系具有良好的抗震性能,耗能系統(tǒng)工作良好,實現(xiàn)了整體結(jié)構(gòu)預(yù)設(shè)的破壞模式,且能充分利用高強混凝土材料、消能減震技術(shù)的優(yōu)勢,形成具有高抗震安全性、高耐久性、施工便利的裝配式高層建筑結(jié)構(gòu)。
[關(guān)鍵詞]高強混凝土;裝配式;高層建筑;框架結(jié)構(gòu);耗能
中圖分類號:TU973-3 文獻標識碼:A文章編號:1002-848X(2021)17-0054-05
Research on assembled high-rise frame structural system with high-strength concrete
XIAO Congzhen1,2, LI Jianhui1,2, CHENG Weihong1,2, TIAN Chunyu1,2, WEI Yue1,2,LI Yinbin1,2, SUN Chao1,2
(1 China Academy of Building Research, Beijing 100013, China;2 National Engineering Research Center of Building Technology, Beijing 100013, China)
Abstract: Vigorously developing and popularizing high strength concrete materials meet the needs of China sustainable development strategy and also contribute to the realization of the "dual carbon goals", which has become one of the main development directions in the field of high-rise buildings in China. Based on the problem that the strength and ductility of high strength materials are difficult to be harmonized in the process of applying high strength materials, the application ideas of high strength concrete in assembled high-rise building structures were expounded. According to the characteristics of assembled buildings, a new type of assembled high-rise frame structure system with high strength concrete adopting assembly joints with large deformation capacity and energy dissipation technologies was proposed, and the seismic performance test of the structural system was carried out. The results show that the structural system has good seismic performance, the energy dissipation system works well, and the predetermined failure mode of the whole structure is implemented. The structural system can also make full use of the advantages of high-strength concrete materials and energy dissipation technology to form a assembled high-rise building structure with high seismic safety, high durability and convenient construction.
Keywords:high strength concrete; assembled; high-rise building; frame structure; energy dissipation
*北京市自然科學基金項目(8212019),住建部科技計劃項目(2018-K9-080),中國建筑科學研究院有限公司自籌基金科研項目(20170122330730022)。
作者簡介:肖從真,全國工程勘察設(shè)計大師,博士,研究員,Email:xiaocongzhen@cabrtech.com; 通信作者:李建輝,博士,研究員,Email:lijianhui@cabrtech.com。