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The Study of Pedestrian Suspension Bridge’s Comfort Evaluation and Control Method

Author: XuXin
Tutor: YeGuiRu；ZhangZhiCheng
School: Zhejiang University
Course: Bridge and Tunnel Engineering
Keywords: Pedestrian suspension bridge Vibration Control Pedestrian load patterns Comfort Evaluation TMD
CLC: U448.25
Type: Master's thesis
Year: 2010
Downloads: 156
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Abstract


Pedestrian suspension bridge vibration due to pedestrian incentive and will not lead to overall destruction of the bridge , however , if not properly controlled , there will be vibration response so pedestrians to produce physiological as well as psychological feeling uncomfortable . In view of this, we carried out the following work : 1 . Inspection of the literature as well as national Comfort specification , simulation of pedestrian excitation loads comfort evaluation methods , the comfort indicators as well as the national Comfort evaluation norms have a a more detailed understanding of and preliminary comparison , as the basis of the follow-up comfort evaluation study . 2 using ANSYS finite element analysis software to call the Japanese line suspension bridge finite element model , and select the appropriate method of natural vibration characteristics of the structure , in order to grasp the dynamic performance of the structure and extract the corresponding data for later evaluation Comfort research to do to prepare . 3 . Accordance with the the load patterns provisions in the countries Comfort specification the call date rope bridge ANSYS finite element model to load and extract the dynamic response of pedestrian loads after in accordance with the evaluation criteria of the countries specification Comfort obtained Dynamic Response comfort evaluation in order to analyze the call date rope bridge 's pedestrian comfort , and through the analysis process to do a more in - depth comparison of countries Comfort specification . ANSYS finite element model analysis TMD vibration control principle and parameter optimization method , choose a better structure parameters to establish the TMD tuned mass damper , arranged in the finite element model of the original call date rope bridge above and the layout of the TMD pedestrian suspension bridge finite element model for the evaluation of Comfort . A comparative analysis of the results of the the comfort evaluation results with calculated before , in order to determine the applicability of the TMD system for reducing line suspension bridge induced vibration . The purpose of this article is a pedestrian suspension bridge Comfort Control specification developed for our above provide some help , and verify the effect of TMD comfort for improving pedestrian suspension bridge pedestrian use .

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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Suspension Bridge
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