气承式膜结构煤棚调整内压下的实测位移响应分析  

Measured displacement response analysis of air⁃supported membrane structure coal shed under adjustment of internal pressure

作　　者：冯成凯 倪仲俊 杨凯 李雄彦[2] 王玉鑫 王永刚[2] FENG Chengkai;NI Zhongjun;YANG Kai;LI Xiongyan;WANG Yuxin;WANG Yonggang(Zhejiang Energy Group Yueqing Power Generation Co.,Ltd,Wenzhou 325609,China;Department of Urban Construction,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]浙江浙能乐清发电有限责任公司,温州325609 [2]北京工业大学城市建设学部,北京100124

出　　处：《建筑结构》2024年第5期98-103,共6页Building Structure

摘　　要：随着气承式膜结构煤棚跨度和单体面积的增加,内压分布特征的变化复杂。目前缺乏针对大型项目的内压升降与位移响应变化关系的实测验证,以确定结构位移响应理论计算值与实测数据是否吻合。基于布设在浙江乐清电厂115m×317m的气承式膜结构煤棚的健康监测系统,在台风来临前对结构进行了升降压-保压测试。实测了结构7个不同测点的位移响应,分析了调整内压时结构的位移响应特征。同时,将实测结果与数值模拟结果进行对比分析,验证了对于大跨度气承式膜结构基于压力等效分析方法的可靠性。With the increase of the span and unit area of air-supported membrane structure coal shed,the changes in the internal pressure distribution characteristics become complex.Currently,there is a lack of field verification on the relationship between the internal pressure fluctuations and displacement response changes in large-scale projects,in order to determine whether the theoretical calculation values of structural displacement response are consistent with the measured data.Based on the health monitoring system of the air-supported membrane structure coal shed with the size of 115m×317m located at Yueqing Power Plant,Zhejiang Province,the lifting-pressure maintaining test on the structure before the typhoon was carried out.The displacement responses of seven different measuring points of the structure were measured,and the displacement response characteristics of the structure under the adjustment of internal pressure were analyzed.At the same time,the measured results were compared with the numerical simulation results to verify the reliability of the pressure equivalent analysis method for large-span air-supported membrane structure.

关 键 词：气承式膜结构 调整内压 位移响应 健康监测 

分 类 号：TU383[建筑科学—结构工程]