地铁沿线砖混结构房屋喷射GFRP的减振研究

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英文篇名：Study on Reducing Vibration of Brick Masonry Structure Buildings Around Subway by Spraying GFRP 中文刊名：武汉理工大学学报 英文刊名：Journal of Wuhan University of Technology 作者：孙亮明 ; 赵娜 ; 谷倩 ; 谢伟平 英文作者：SUN Liang-ming ; ZHAO Na ; GU Qian ; XIE Wei-ping(School of Civil Engineering and Architecture ; Wuhan University of Technology ; Wuhan 430070 ; China) 中文关键词：地铁 ; 砖混结构房屋 ; 减振 ; 喷射GFRP ; 动力响应 英文关键词：subway ; brick masonry structure buildings ; reducing vibration ; spraying GFRP ; dynamic response 出版日期：2012-07-31 机构：武汉理工大学土木工程与建筑学院; 年：2012 期：07 出版单位：武汉理工大学学报

摘要

为改善地铁周边振动环境和提高人们的生活环境质量,对砌体墙喷射玻璃纤维聚合物(GFRP)进行了试验研究和数值模拟。结果表明,喷射GFRP可以提高开裂荷载、极限荷载、极限位移和延性等,其中砌体墙弹性阶段刚度有明显提高,同时建立了砖混结构房屋外墙喷射GFRP的有限元模型,并分析了在列车荷载作用下的动力响应。结果表明:最大Z振级减小量可达2.694dB,具有良好的减振效果,是一种合理有效的减振措施。
To improve the surrounding vibration environment and improve the people's living quality,the subject researches the masonry wall by spraying glass fiber reinforced polymer(GFRP) based on experiments and numerical simulations.It shows that this can enhance cracking load,ultimate load,ultimate displacement,tractility and so on.The stiffness of masonry wall can obviously enhance during the elastic stage.Then,the finite element model of brick masonry structure buildings which external wall is sprayed GFRP is established and the dynamic response under the train loads is analyzed.The result shows that the maximum Z vibration level can reduce 2.694 dB.This is a reasonable and effective reducing vibration measure.

引文

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