| 长沙南站大跨度候车厅楼盖竖向舒适度分析与检测 |
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| 引用本文： | 周德良,李爱群,周朝阳,王世明,郭向荣,张志强.长沙南站大跨度候车厅楼盖竖向舒适度分析与检测[J].建筑结构,2011(7). |
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| 作者姓名： | 周德良 李爱群 周朝阳 王世明 郭向荣 张志强 |
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| 作者单位： | 中南建筑设计院股份有限公司;东南大学;中南大学;中铁建工股份有限公司; |
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| 摘 要： | 长沙南站高架候车厅层跨度为49m的大跨度钢桁架高跨比为1/20,在站场范围内的高架候车厅层楼盖柱与站场铁路桥梁的桥墩相连,包括与铁路正线通过桥梁的桥墩相连。对站场正线通过列车车振和高架层人行荷载所致的高架层49m跨楼盖竖向舒适度进行分析与研究,提出了候车厅楼盖舒适度的评价标准和分析方法,采用多点TMD-粘滞流体阻尼器消能减振系统对高架层大跨度楼盖进行减振分析与设计。理论分析和大量的现场检测表明:通过采用适当的结构措施,正线通过车致振动下高架层49m跨楼盖舒适度在减振前就满足要求;TMD减振系统有效地改善了楼盖的竖向舒适度,减振前在某些人行荷载下楼盖不满足舒适度要求,采用TMD减振后楼盖舒适度均满足设计要求,具有良好的经济性。
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| 关 键 词： | 大跨度钢桁架 舒适度 人行荷载 TMD 减振 现场检测 经济性 |
Analysis and test on the comfort of the large-span waiting hall floor in South Changsha Railway Station |
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| Zhou Deliang,Li Aiqun,Zhou Chaoyang,Wang Shiming,Guo Xiangrong,Zhang Zhiqiang.Analysis and test on the comfort of the large-span waiting hall floor in South Changsha Railway Station[J].Building Structure,2011(7). |
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| Authors: | Zhou Deliang Li Aiqun Zhou Chaoyang Wang Shiming Guo Xiangrong Zhang Zhiqiang |
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| Affiliation: | Zhou Deliang1,Li Aiqun2,Zhou Chaoyang3,Wang Shiming4,Guo Xiangrong3,Zhang Zhiqiang2(1 Central-South Architectural Design Institute Co.,Ltd.,Wuhan 430071,China,2 Southeast University,Nanjing 210096,3 Central-South University,Changsha 410083,4 China Railway Construction Eng.Corp.Ltd.,Shenzhen 518052,China) |
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| Abstract: | The ratio of height to span for steel truss with span of 49m is 1/20 in South Changsha Railway Station,and the columns for the waiting hall floor,which is just above the bridge structure on the 1st floor(also called platform floor),are connected to the bridge piers,including the piers of the bridges for the high speed pass-by trains.The comfort of the large-span waiting hall floor induced by high speed pass-by trains on the platform floor and by human on the waiting hall was researched.The analysis method a... |
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| Keywords: | large-span steel truss comfort human-induced loads TMD(tuned mass dampers) vibration reduction test-in-situ economy |
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