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工程科学与技术:2023,55(1):209-221
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盒式连接全装配式复合墙体抗震性能试验研究
(西安建筑科技大学 土木工程学院,陕西 西安 710055)
Experimental Study on Seismic Behavior of Total Precast Composite Walls Using Box Connection
(School of Civil Eng., Xi’an Univ. of Architecture and Technol., Xi’an 710055, China)
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投稿时间:2022-06-11    修订日期:2022-08-29
中文摘要: 为加大装配式复合结构在低多层建筑的适用性,本文在装配整体式复合结构的基础上进一步优化墙板边界连接构造,提出一种新型的全装配式复合墙结构。对结构中采用盒式连接水平缝的全装配式复合墙体进行拟静力试验,深入研究了该类墙体的破坏模式、滞回特性、承载能力、延性性能、刚度退化规律和耗能能力等抗震性能指标,并对比分析了不同盒式连接件构造Wall shoes(WPC)、集成钢筋式(IPC)、分布钢筋式(DPC)对墙体基本力学性能的影响。研究结果表明:全装配式复合墙体是一种轻质、高强、节能、抗震性能良好的结构受力构件,试件中的填充体、中部肋格、边肋柱依次发挥作用,并得到墙体3个阶段的受力特点。相比DPC试件,IPC的屈服荷载和峰值荷载分别提升6%和10%,WPC分别提升2%和5%;试件的位移延性系数均大于3.3,符合钢筋混凝土结构抗震设计要求;各试件的刚度退化规律基本相同,其中,DPC试件的刚度退化速率最快;各试件的累积耗能均呈累积增长趋势,IPC累积耗能是WPC累积耗能的1.08倍,是DPC累计耗能的1.13倍。3种不同形式盒式连接构造均具有可靠的连接性能,集成钢筋式盒式连接综合抗震性能表现最优,其生产及安装方式也更为简单高效,适合运用于实际工程。
Abstract:To increase the applicability of the precast composite structure in low multiple-story buildings, the boundary connection of wall-slab based on monolithic precast composite structure was optimized, and a new total precast composite structure was proposed. Through the quasi-static tests of the total precast composite walls with horizontal joints using box connection, the seismic performance such as the failure mode, bearing capacity, behavior degradation law, and energy dissipation capacity of this kind of wall was studied, and the effects of different box connection details (wall shoes, integrated reinforcement, and distributed reinforcement) on the basic mechanical properties of the wall were compared and analyzed. The results showed that the total precast composite wall was a kind of structural member with lightweight, high strength, energy saving, and good seismic performance. All the specimens followed the failure path of three anti-seismic lines of “infills, middle rib-frame, and side rib column”, which highlighted the three-stage stress characteristics of the wall; Compared with the yield load and peak load of the DPC specimen (distributed reinforcement type), IPC (integrated reinforcement type) increased by 6% and 10% respectively, and WPC (wall shoes) increased by 2% and 5% respectively; The displacement ductility coefficient of all specimens was greater than 3.3, which met the seismic design requirements of reinforced concrete structures; The stiffness degradation law of all specimens was basically the same, and the stiffness degradation rate of DPC was the fastest; The cumulative energy consumption of all specimens showed a cumulative growth trend, and the cumulative energy consumption of IPC was 1.08 times that of WPC and 1.13 times that of DPC. The three different types of box connections had reliable connection performance, and the integrated reinforcement box connection had the best seismic performance. Its production and installation mode was also simpler and more efficient, which was more suitable for practical projects.
文章编号:202200598     中图分类号:TU375    文献标志码:
基金项目:国家自然科学基金面上项目(51978566);陕西省重点研发计划重点产业创新链项目(2020ZDLNY06-04);西安市碑林区科技计划项目(GX2131)
作者简介:第一作者:黄炜(1975-),男,教授,博士.研究方向:新型材料与新型结构体系.E-mail:qqhuangwei2005@126.com;通信作者:张家瑞,E-mail:xagd18@163.com
引用文本:
黄炜,张家瑞,苗欣蔚,黄惠.盒式连接全装配式复合墙体抗震性能试验研究[J].工程科学与技术,2023,55(1):209-221.
HUANG Wei,ZHANG Jiarui,MIAO Xinwei,HUANG Hui.Experimental Study on Seismic Behavior of Total Precast Composite Walls Using Box Connection[J].Advanced Engineering Sciences,2023,55(1):209-221.