Analysis of a topdown bottomup data analysis framework. Dynamic analysis of wind vehicle bridge coupling system during the meeting of two trains yongle li, huoyue xiang, bin wang, youlin xu, and shizhong qiang advances in structural engineering 20 16. The mechanism for coupling vibration of windvehiclebridge systems is explored to demonstrate the effects of fundamental factors, such as mean wind, fluctuating wind, buffeting, rail irregularities, light rail vehicle vibration and bridge stiffness. Evaluation of ride comfort and driving safety for moving. For regular aerodynamic study of longspan bridges, no traffic load is typically considered, assuming that bridges will be closed to traffic at high wind speeds. This paper presents a framework for dynamic stress analysis of long suspension bridges under wind, railway and highway loadings. Framework of windvehiclebridge interaction analysis and. His work at lsu mainly focused on developing a vehicle bridge wind interaction framework for assessing fatigue damage of bridges in traffic wind combined environments including extreme hurricane wind events. Coupled vibration analysis of vehiclebridge for longspan.
Data processing system dps software with experimental design, statistical analysis and data mining developed for use in entomological research. A framework for vehiclebridgewind aerodynamic analysis is developed to consider different types and arbitrary number of vehicles on the bridge. Therefore, a general dynamic simulation platform, which can predict the. During the past two decades, researchers have made significant contributions to the simulation of the wind vehicle bridge system and their interactive effects. Development of dynamic impact factor expressions for skewed. Based on the data generated by this analysis, appropriate expressions for dynamic impact factors for the longitudinal moment and deflection are proposed. A practical cablestayed bridge dynamic analysis is completed successfully by programming with fore. To investigate the influence of crosswind and moving vehicle loads on bridge dynamic response, a timedomain buffeting analysis, a vehiclebridge coupled vibration analysis and windvehiclebridge coupled vibration analysis at the wind speed of 5,10,15 and 20 ms separately under heavy traffic are carried out separately fig. Dynamic analysis of coupled road vehicle and cablestayed bridge systems under turbulent wind j. Such an approach can be used as a general platform to predict the dynamic responses of vehicles and bridges under various situations through adopting both commercial and inhouse software. There are a large amount of vehicles passing through inservice longspan. In order to verify the reliability of the combination of the software, a typical example. The vehiclebridge interaction can induce bridge vibration and consequently fatigue, durability deterioration, local damage, and even collapse of bridge structure. Dynamic analysis of windvehiclebridge coupling system during the meeting of two trains yongle li, huoyue xiang, bin wang, youlin xu, and shizhong qiang advances in structural engineering 20 16.
Dynamic response of longspan suspension bridge to high wind and running train j. To study the effect of various dampers on vibration, acceleration, natural frequency and other dynamic properties. The analysis of the measurement results combined with further parametric studies performed on calibrated models will allow for the elaboration of design procedures that consider dynamic soil. Recent research and applications of numerical simulation for. In addition, he also got involved in the progressive failure analysis of low rise buildings under hurricane wind loads. This paper presents a framework of dynamic analysis of coupled three dimensional vehicle bridge system under strong winds. Effects of fundamental factors on coupled vibration of. Effects of fundamental factors on coupled vibration of wind. Windvehiclebridge coupled vibration analysis based on random. Coupled solution for dynamic response of vehicle bridge system based on couple transformation between wheel and bridge deck. Request pdf dynamic analysis of windvehiclebridge systems using mutually affected aerodynamic parameters several frameworks for the dynamic analysis. Chapter 21 finite element analysis of deformation and fracture of cylindrical tubes under internal moving pressures 479 majid mirzaei chapter 22 fe analysis of evolution of defects during rolling 501 dr. Request pdf dynamic analysis of windvehiclebridge systems using mutuallyaffected aerodynamic parameters several frameworks for the dynamic analysis.
State key laboratory for disaster reduction in civil engineering, tongji university, shanghai 200092, china. Dynamic analysis of trainbridge system subjected to crosswinds. In this paper, a solid vehiclebridge interaction vbi analysis method is developed. Framework of vehiclebridgewind dynamic analysis request pdf. In this paper, a solid vehiclebridge interaction vbi analysis method is developed to provide refined analysis on the bridge responses including displacement and local stress under vehicle loads. Dynamic analysis is a simple extension of static analysis. The factors affecting the dynamic increment with respect to the static component have been recently investigated by several researchers 2, 3, and the surface roughness, vehicle characteristics, and the geometry and type of bridge were found to significantly affect the dynamic bridge vehicle interactions. The framework will operate as an automated system, conduct simulations, and produce a timeseries output at a predetermined time interval. Chens research interests include theory and applications of dynamic systems and controls to advance the technology development in advanced manufacturing, mechatronics, robotics, precision. Dynamic analysis of windvehiclebridge system based on rigidflexible coupling method. Vehicle model and fluctuating wind load model are established, corresponding vehicle stiffness and damping matrix is educed in the method. In a windvehiclebridge wvb system, there are various interactions among wind, vehicle and bridge. Since heavy traffic and strong winds are common on longspan bridges, the interactions between bridge, vehicles, and winds should be carefully. Excel spreadsheets fastrak building designer floorvibe risa floor.
Oct 29, 2017 cai cs, chen sr 2004 framework of vehiclebridgewind dynamic analysis. Coupled dynamic analysis of the vehiclebridgewindwave. The mechanism for coupling vibration of wind vehicle bridge systems is explored to demonstrate the effects of fundamental factors, such as mean wind, fluctuating wind, buffeting, rail irregularities, light rail vehicle vibration and bridge stiffness. Dynamic analysis of windvehiclebridge systems using mutually. Under strong winds, bridges may exhibit large dynamic and static responses.
Each vehicle is modeled with several rigid bodies, mass blocks, and springdamping systems. As discussed in section 1, typical vbi systems were mainly focused on the dynamic performance in the vertical direction. Cai cs and chen sr 2004 framework of vehiclebridge wind. Fatigue analysis of stay cables on the longspan bridges. Introduction the inservice bridges are subjected to moving vehicles every day and the dynamic interactions between vehicles and bridges can, on one hand, induce the bridge vibration and consequently the fatigue, durability deterioration, local damage, and even collapse of the bridge structure and on the other hand, lead to the influence on the vehicle safety as well as passengers comfort. In order to investigate the characteristics of the vibration of the windvehiclebridge wvb coupling system during two trains meeting each other, the dynamic response of the wvb system has been analyzed when the two trains meeting on a large span suspension bridge using the selfdeveloped software bansys. Understanding the dynamics of the complex vehiclebridgewindwave vbww system is critical to the safety of both vehicles and bridges. Request pdf framework of vehiclebridgewind dynamic analysis this paper presents a framework of dynamic analysis of coupled threedimensional vehicle bridge system under strong winds.
Dynamic analysis of windvehiclebridge system based on. This paper presents a framework of dynamic analysis of coupled threedimensional vehicle bridge system under strong winds. Road vehiclebridge interaction considering varied vehicle. The present study provides a critical overview of the state of theart existing condition assessment techniques for reinforced concrete bridges, with an emphasis on current practice in north america.
Vehicle bridge interaction considering varied vehicle speed. Journal of wind engineering and industrial aerodynamics, 2004,9278. A single software is not adequate for the coupling analysis. In this section, a vbi system for highway considering both the vertical and the longitudinal interaction forces will be presented, after introducing the detailed. Framework of vehicle bridge wind dynamic analysis j. A practical cablestayed bridge dynamic analysis is completed successfully by programming with fore mentioned method. Wvb system analysis is a complicated interaction process for determining the critical wind speed, based on the dynamic responses of vehicle and bridge and corresponding limited values cai and chen 2004. Understanding the dynamics of the complex vehicle bridge wind wave vbww system is critical to the safety of both vehicles and bridges. Secondly, a dynamic analysis module rtfwvb of the windvehiclebridge coupling. The bridge, trains and road vehicles are respectively modeled using. May 25, 2016 in a wind vehicle bridge wvb system, there are various interactions among wind, vehicle and bridge. Dynamic simulation of a longspan bridgetraffic system. Department of bridge engineering, southwest jiaotong university, chengdu 610031, sichuan, china. For the present study, an analytical model was developed to evaluate the dynamic performance of the coupled vbww system.
Condition assessment of reinforced concrete bridges. The effect analysis of wind load on vehiclebridge coupled. Chen, framework of vehiclebridgewind dynamic analysis, journal of wind. Dynamic analysis of trainbridge system subjected to. The vehicle model is suitable for modeling different types of cars and trucks up to five axles. Although mcs can be utilized for cases with implicit limit state. In addition, a framework for dynamic analysis of coupled road vehicle and long span bridge systems under cross winds has been presented by xu and guo and cai and chen 14. Refined vehiclebridge interaction analysis using incompatible.
Floor vibrations due to human activity fairly straight forward analysis which we can calculate manually, or with simple software in the presentation today, well use. Dynamic analysis of windvehiclebridge coupling system. Advances in structural engineering study of windvehicle. One quarter of bridges in canada and the united states need repair. Road vehiclebridge interaction considering varied vehicle speed.
Framework of windvehiclebridge interaction analysis and its. Yu hailiang chapter 23 finite element analysis of strip and rolling mills 561 jianguo cao, jie zhang, ning kong and kaifu mi chapter 24. The vehicle bridge interaction can induce bridge vibration and consequently fatigue, durability deterioration, local damage, and even collapse of bridge structure. The techniques were classified into five categories, including visual inspection, load testing, nondestructive evaluation. Equivalent wheel load approach for slender cablestayedbridge. It can be achieved by applying several available analytical technique. Dynamic interaction effects can be fully considered automatically for each situation. A computer simulation method of solving vehicle bridge system vibration response considering wind load is presented based on mode integration theory. A framework for vehicle bridge wind aerodynamic analysis is developed to consider different types and arbitrary number of vehicles on the bridge. Because the complicated dynamic coupling effects among the bridge, vehicles, wind, and wave cannot be modeled appropriately using the existing finite element fe software, an analytical framework of the coupled vbww dynamic system is established using the commercial fe software ansys and the computer programming language matlab. Wind may also endanger the safety of moving vehicles on the roadways as well as on bridges.
Wind load, dynamic response of a continuous bridge, theoretical meth. Figure 3 from dynamic analysis of windvehiclebridge system. Icwe14 programme complete 10jun2015 wind tunnel wound. In order to reduce the complexity of proposed expressions, the effects of road surface roughness on dynamic responses of bridge vehicle interaction are considered in bridge modeling. In this paper, a solid vehicle bridge interaction vbi analysis method is developed to provide refined analysis on the bridge responses including displacement and local stress under vehicle loads. With coupled dynamic interactions of vehicle bridge wind wave vbww system, fatigue damage accumulations at complicated weldments of the orthotropic steel deck osd for coastal slender bridges could be critical and might affect structural safety and reliability. Cai cs and chen sr 2004 framework of vehiclebridge wind dynamic analysis. Vehiclebridge coupling vibration is a complicated interaction process, which includes multibody. Coupled vibration analysis of vehicle bridge for longspan bridge under wind and wave. Dynamic analysis is performed to evaluate the response of a structure to earthquake motion and wind load. Unified approach to predict the dynamic performance of. In order to analyze the dynamic responses of the bridge and the vehicle with. Dynamic analysis of windvehiclebridge system based on rigid.
Traditional wvb system analyses were mostly conducted by deriving and programming the equations of motion of the system. To account for different types of longspan bridges with the span length ranging from a few hundred to thousands of meters, zhang et al. System reliability evaluation of inservice cablestayed. The combined framework and resulting software architecture will be the combination of the two. A coupled windvehiclebridge system and its applications. An interactive method for the analysis of the simulation of vehicle. Framework of fullycoupled nonlinear dynamic simulation of longspan cablestayed bridges subjected to cableloss incidents, journal of structural engineering, asce, 10. A computer simulation method of solving vehiclebridge system vibration response considering wind load is presented based on mode integration theory. Coupled solution for dynamic response of vehiclebridge. Steel construction 2017 01 free sample copy by ernst.