吊车荷载对检修库上盖振动影响的仿真分析*
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（1 北京城市快轨建设管理有限公司， 北京 100027； 2 北京市劳动保护科学研究所， 北京 100054)
［摘要］对北京某车辆段检修库上盖振动进行测试，测试结果表明吊车荷载作用下检修库上盖振动较大。采用数值仿真方法，从上盖建筑物振动控制的角度出发，对吊车荷载作用下车辆段检修库立柱截面、立柱间距、有无转换层及有无上盖建筑物对上盖振动的影响进行分析。分析结果表明，立柱截面变化对上盖振动影响较小，可忽略不计，而立柱间距对上盖振动影响较为明显；增加转换层可降低上盖的振动，最大Z振级平均降低3.1dB，增加上盖建筑物后上盖振动有所减小，最大Z振级平均降低1.95dB。［关键词］吊车荷载; 检修库; 上盖建筑; 振动中图分类号：X593 文献标识码：A 文章编号：1002-848X(2015)19-0092-04Simulation analysis on influence of crane loads on over-track building vibrations of a repair shedOuyang Kangmiao1, Zeng Qin′e2, He Lei2
(1 Beijing Urban Rapid Transit Construction Management Co., Ltd., Beijing 100027, China; 2 Beijing Municipal Institute of Labour Protection, Beijing 100054, China)
Abstract: Over-track building vibration of a car depot repair shed in Beijing was tested. Results show that over-track building vibration of the repair shed is large under the crane loads. From the perspective of controlling the over-track building vibration, analyses were carried out on the influential factors on the over-track building vibration under the crane loads, including column section size, space between columns, existence of transfer story and existence of over-track buildings. Results show that the influence of column section size can be neglected and space between columns has significant influence on the over-track building slab vibration. Adding either transfer story or over-track buildings can reduce the over-track building slab vibrations, by averagely 3.1dB and 1.95dB respectively.
Keywords: crane load; repair shed; over-track building; vibration
*高振动环境区域建筑振动和噪声测试能力建设（PXM2014_178304_000005_00132840）。作者简介：欧阳康淼，学士，工程师，Email:ouyang6114@163.com。
