基于复杂人致激励作用下的楼盖振动响应分析

符胜男; 王斌

doi:10.13204/j.gyjzG20072410

基于复杂人致激励作用下的楼盖振动响应分析

doi: 10.13204/j.gyjzG20072410

符胜男,
王斌^,

天津城建大学土木工程学院, 天津 300384

基金项目:

天津市科技支撑计划(19YFZCSN01180)。

国家自然科学基金项目(51978186)

详细信息

作者简介:
符胜男,女,1996年出生,硕士研究生。

通讯作者:
王斌,wangbin1982@tju.edu.cn。

计量
- 文章访问数: 56
- HTML全文浏览量: 3
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2020-07-24

Analysis of Floor Vibration Responses Based on Complex Human-Induced Excitation

FU Shengnan,
WANG Bin^,

Tianjin Institute of Urban Construction, Tianjin 300384, China

摘要

摘要: 为探究体育馆楼盖结构在复杂激励下的振动力学性能,使用动态信号采集分析系统,以试验的方式测定体育馆的不同分布试点的速度响应及能量分布变化规律,全程研究分析楼盖在单人和双人激励下的振动特性,通过试验分析总结得出,各个试点的能量分布受到支撑的约束形式、不同种类的激励模式、加载激励的位置等因素影响,其中,加载在不同分布试点的激励位置是决定能量分布规律的主要因素。相对于行走、跳跃、奔跑、Bounce等不同激励类型而言,跳跃激励相对于Bounce激励具有更多的输入能量,使各试点的响应呈现出更规律的拍振形式,而Bounce荷载作用下的能量被楼盖吸收,使结构呈现出一种随机动力响应。
- 人致荷载 /
- 复杂激励 /
- 振动特性 /
- 速度响应谱
Abstract: In order to explore the vibration dynamic performance of the gymnasium floor structure under complex excitation, a dynamic signal acquisition and analysis was used system to experimentally determine the speed response and energy distribution change rules of different distribution pilots of the gymnasium. The vibration characteristics under the excitation of single people and two people were summarized through experimental analysis. The energy distribution of each pilot site was affected by factors such as the supported constraints, different types of excitation modes, and the location of the loaded excitation. Among them, the excitations loaded in different distribution pilotss locations was the main factor which determined the law of energy distribution. Compared with different excitation types such as walking, jumping, dancing, and bouncing, jumping excitation had more input energy than bouncing excitation, so that the response of each pilot exhibited a more regular form of beat vibration. The energy was absorbed by the floor, showing a random structural dynamic response.
- human-induced load /
- complex incentives /
- vibration characteristics /
- velocity response spectrum

HTML全文

参考文献(22)

[1]	COMER A,BLAKEBOROUGH A,WILLIAMS M S.Crowd coordination in jumping tests on a model grandstand[C]//Eurodyn 2009,7th European Conference on Structural Dynamics.2008.
[2]	AGU E,KASPERSKI M.A statistical approach to loads induced by bobbing[C]//Structural Dynamics Eurodyn.2008.
[3]	BROWNJOHN J M W,PAVIC A,OMENZETTER P.A spectral density approach for modelling continuous vertical forces on pedestrian structures due to walking[J].Canadian Journal of Civil Engineering,2004,31(1):65-77.
[4]	ROYVARAN M,AVCI O,DAVIS B.Analysis of floor vibration evaluation methods using a large database of floors framed with W-Shaped members subjected to walking excitation[J].Journal of Constructional Steel Research,2020,164.DOI: 10.1016/j.jcsr.2019.105764.
[5]	操礼林,曹栋,李爱群.人行天桥动力特性参数时变性分析及其TMD减振控制[J].建筑结构学报,2020,41(11):134-142. DOI: 10.14006/j.jzjgxb.2019.0293.
[6]	操礼林,钱程,张志强,等.人行荷载模型与人致结构振动试验研究[J].东南大学学报(自然科学版),2018,48(1):113-117.
[7]	朱前坤,蒲兴龙,惠晓丽,等.基于人群-结构耦合作用甘肃省体育馆悬挂结构振动舒适度评估及控制[J].工程力学,2018,35(增刊1):46-52.
[8]	黄音,龙帅,吴金保,等.不同设计参数下体育馆大跨度预应力次梁楼盖竖向振动分析[J].重庆大学学报,2019,42(1):16-24.
[9]	黄音,彭俊森,李哲刚,等.体育馆大跨度预应力次梁楼盖竖向振动模态分析[J].重庆大学学报,2017,40(5):43-48.
[10]	周晨,张志强,张晓峰,等.人群荷载下楼盖结构随机振动分析方法与试验研究[J].振动工程学报,2019,32(1):37-48.
[11]	孙建龙,蔡玉军,张海,等.西安站改站房配楼跨越地裂缝连廊结构设计[J].铁道工程学报,2020,37(2):80-85.
[12]	陈隽,王晋平,熊杰程.步行荷载的功率谱模型及其应用研究[J].建筑结构学报,2019,40(9):166-174.
[13]	王晋平,熊杰程,陈隽.人群步行荷载的互谱模型及应用[J].土木工程学报,2020,53(7):12-20.
[14]	赵丁苏,陈隽.单人三向连续步行荷载相关性及建模研究[J].振动与冲击,2019,38(11):166-172.
[15]	CHEN J,HAN Z P,XU R T.Effects of human-induced load models on tuned mass damper in reducing floor vibration[J].Advances in Structural Engineering,2019,22(11):2449-2463.
[16]	陈隽,任静雅,王磊.多人Bounce荷载下结构动力响应折减系数研究[J].振动与冲击,2019,38(11):48-53.
[17]	TAN H,CHEN J.Experimental investigation on synchronization of bouncing crowd[J].Procedia Engineering,2017,199.DOI: 10.1016/j.proeng.P2017.09.541.
[18]	CHEN J,WANG L,RACIC V,et al.Acceleration response spectrum for prediction of structural vibration due to individual bouncing[J].Mechanical Systems and Signal Processing,2016,76-77.DOI: 10.1016/j.ymssp.2016.02.032.
[19]	YAO S,WRIGHT J R,PAVIC A,et al.Experimental study of human-induced dynamic forces due to bouncing on a perceptibly moving structure[J].Canadian Journal of Civil Engineering,2004.DOI: 10.1139/104-081.31.6(2004).
[20]	王磊,陈隽,楼佳悦,等.单人Bounce荷载的实验建模研究[J].振动与冲击,2016,35(17):52-57.
[21]	ABEYSINGHE C M,THAMBIRATNAM D P,PERERA N J.Dynamic performance characteristics of an innovative hybrid composite floor plate system under human-induced loads[J].Composite Structures,2013,96:590-600.
[22]	WENDELL D V,RONALDO C B.Control of vibrations induced by people walking on large span composite floor decks[J].Engineering Structures,2011,33:2485-2494.