Cross-spectral recognition method of bridge deck aerodynamic admittance function

作     者：Zhao Lin Ge Yaojun 

作者机构：State Key Lab for Disaster Reduction in Civil EngineeringTongji University 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2015年第14卷第4期

页      面：595-609页

核心收录：

学科分类：08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：National Key Basic Research Program of China(973 Program)under Grant No.2013CB036300 Ministry of Transport Application Foundation Research Project under Grant No.2013319822070 the National Natural Science Foundation of China under Grant Nos.91215302,51222809 and 51178353 Program for New Century Excellent Talents in University 

主　　题：Algorithms Bridge decks Intelligent systems Monte Carlo methods Numerical methods Power spectral density Spectral density Wind stress Wind tunnels 

摘      要：This study proposes a new identification algorithm about the admittance function, which can estimate the full set of six aerodynamic admittance functions considering cross power spectral density functions about the forces and the turbulence components. The method was first numerically validated through Monte Carlo simulations, and then adopted to estimate the aerodynamic admittance of a streamlined bridge deck. The identification method was further validated through a comparison between the numerical calculation and wind tunnel tests on a moving bridge section. ? 2015, Institute of Engineering Mechanics, China Earthquake Administration and Springer-Verlag Berlin Heidelberg.