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您的检索式：作者名="Wanshui Han"
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| 1 | Wind-vehicle-bridge coupled vibration analysis based on random traffic flow simulation显示文摘A wind-vehicle-bridge system can be regarded as an interaction result of wind-bridge interaction,wind-vehicle interaction and vehicle-bridge interaction,which is determined by nature wind,dynamic characteristics of vehicle and bridge structures,interrelationship between bridge and vehicle dynamic properties and so on.Firstly,based on the traffic loading investigation on the expressway bridge within 24 hours a day,all the critical parameters of traffic flow,such as the vehicle type,weight,separation space and speed are all recorded and analyzed to extract its statistical characteristics,which are used to work out random traffic flow simulation program RTF.This RTF program can be embedded with the other general FEM software.Secondly,a dynamic analysis module RTFWVB of the wind-vehicle-bridge coupling vibration under random traffic flow is presented,which can consider arbitrary number of vehicles,multi-lanes and traffic flow direction.Finally,Hangzhou Bay Bridge in China is selected as a numerical example to demonstrate dynamic interaction of the RTFWVB system.The results indicate that the traffic flow direction has just a little influence on bridge dynamic response,that the mean responses are mainly determined by the moving vehicle loads,and that the fluctuating components will increase with the increase of wind speed. | Tao Wang Wanshui Han Fei Yang Wen Kong | 2014 | Journal of Traffic and Transportation Engineering(English Edition)2014，1，4： | 9 |
| 2 | Research status and prospect of wind-vehicle-bridge coupling vibration system显示文摘To promote and develop the theoretical basis and application of the wind-vehicle-bridge coupling vibration system,the corresponding research status and prospects are reviewed and discussed from five aspects,i.e.,the analytical framework,the aerodynamic interference,the evaluation criteria,the design loads of long-span bridge and the double-deck railcum-road bridge.The refining process of analysis system is reviewed from the aspects of simulation wind load,vehicle load and bridge structure,and the corresponding coupling relationship.For aerodynamic interference,the development process is summarized from the simulative precision of the elements(wind,vehicle and bridge),the load cases and the object of interference.For evaluation criteria,the corresponding development course is summarized from the certain evaluation method to uncertain one.For long-span bridge design load,the wind and vehicle loads are reviewed and summarized from current multinational codes and theoretical research.For double-deck rail-cum-road bridge,the mechanism of multi-element coupling relationship and corresponding aerodynamic interference are both reviewed.By comprehensive review and summary,the analytical framework is in the process from simplification to refinement.The simulation and consideration of the objects of structural interference gradually become complex.The corresponding simulation theory,wind tunnel scale,test equipment and technology are the key factors to limit its development.For systematic evaluation of vehicle and bridge,the structural and systemic security are the basis of the evaluation,and the auxiliary components and functional evaluation need to be paid more attention.The evaluation criterion will be developed from certain method to reliability assessment.For design load of long-span bridge,the vehicle load is gradually transferred from the simple application of the design load of small-medium span bridge into a complex model considering the load characteristics.For double-deck rail-cum-road bridge,the basic theory and experimental study on coupling mechanism and aerodynamic interference need to be developed. | Wanshui Han Xiaodong Liu Xuelian Guo Shizhi Chen Gan Yang Huanju Liu | 2022 | Journal of Traffic and Transportation Engineering(English Edition)2022，9，3： | 1 |
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