文章摘要
尹新生,刘晓巍.预应力约束下装配式剪力墙结构减震性能研究[J].地震工程学报,2020,42(1):1-6. YIN Xinsheng,LIU Xiaowei.Seismic Absorption Performance of Fabricated ShearWall Structures under Prestressed Constraint[J].China Earthquake Engineering Journal,2020,42(1):1-6.
预应力约束下装配式剪力墙结构减震性能研究
Seismic Absorption Performance of Fabricated ShearWall Structures under Prestressed Constraint
投稿时间:2019-04-29  
DOI:10.3969/j.issn.1000-0844.2020.01.001
中文关键词: 预应力;装配式;变刚度减震;时程分析
英文关键词: prestressed;fabricated;variable stiffness damping;time history analysis
基金项目:国家自然科学基金(51178205)
作者单位E-mail
尹新生 吉林建筑大学 土木工程学院, 吉林 长春 130000  
刘晓巍 吉林建筑大学 土木工程学院, 吉林 长春 130000 1019064700@qq.com 
摘要点击次数: 59
全文下载次数: 24
中文摘要:
      为了应对中国在新时期提出的"经济,适用,绿色,美观"的建筑政策,装配式结构逐渐成为近年来关注的焦点。对比传统现浇结构,装配式结构更符合节能、节材、环保等要求。因此,进一步研究装配式结构的抗震性能是非常重要的。考虑现有装配式剪力墙结构节点连接部位存在湿作业、施工难度大,常常出现强构件弱节点,抗震性能有待进一步深入研究等情况。为此我们提出一种新的结构形式——预应力约束下装配式剪力墙结构,该结构通过预应力筋连接结构的墙、板,使结构形成一个整体,减少施工现场湿作业,施工质量得以提高。当地震发生时结构通过改变自身的刚度,使其自震周期增大,达到减小地震应力的目的,同时很多提高延性因素的条件也无需考虑,避免钢材的浪费。通过对现浇剪力墙结构模型和预应力约束下装配式剪力墙结构模型进行时程分析,计算结果表明:与现浇剪力墙结构相比,预应力约束下装配式剪力墙结构可减小90%的地震作用,减震效果显著。
英文摘要:
      To contend with the construction policy of "economy, application, green, and beauty" introduced by contemporary China, the fabricated structure has gradually become the focus of attention in recent years. Compared with the traditional cast-in-place structure, the assembled structure is more in line with the requirements of energy-saving, material-saving, environmental protection, etc. Therefore, it is extremely important to further study the seismic performance of fabricated structures. Owing to the existence of wet operation in the joints of existing fabricated shear wall structures, construction is very difficult as strong members and weak joints often appear. Hence, we propose a new type of fabricated shear wall structure under prestressed constraint. The shear wall of the proposed structure was constructed by prestressed reinforcement. Due to no wet work at the construction site, the construction quality was improved. When an earthquake occurs, the natural period of the structure was increased by changing its stiffness, so as to reduce earthquake stress. At the same time, steel waste was avoided. Based on the time history analysis of the cast-in-place shear wall structure model and the prestressed shear wall structure model, the findings revealed that compared with the cast-in-place shear wall structure, the prestressed shear wall structure can reduce seismic response by approximately 90% and effectively reduce the earthquake effect.
查看全文   查看/发表评论  下载PDF阅读器
关闭

您是第3003856位访问者
版权所有欢迎《地震工程学报》编辑部
主管单位:中国地震局 主办单位:中国地震局兰州地震研究所
清华大学
中国地震学会
中国土木工程学会
地  址: 甘肃省兰州市东岗西路450号 邮编:730000 电话:0931-8275892 E-mail: dzgcxb@gsdzj.gov.cn
本系统由北京勤云科技发展有限公司设计