The main object was to perform simulations using a realistic model of a truck and trailer passing over a flexible bridge structure. The bridge structure was simplified to a flat surface modeled using shell finite elements. Tire normal, lateral and longitudinal forces were applied to the bridge. Three driving cases were considered: straight forward driving with and without braking and a lane cha...

An improved spatial vehicle–track–bridge interaction system considering the unsupported track is proposed using virtual work principle. When fails to be supported due defects under track, corresponding bridge–rail connection coupled matrix should removed. Using dynamic model, a novel numerical analysis of unilateral and bilateral sleepers in bridge subgrade carried out. The results indicate tha...

A suspended monorail transit system is a category of urban rail transit, which is effective in alleviating traffic pressure and injury prevention. Meanwhile, with the advantages of low cost and short construction time, suspended monorail transit systems show vast potential for future development. However, the suspended monorail has not been systematically studied in China, and there is a lack o...

The dynamic effect of moving vehicles on bridges is generally treated as a dynamic load allowance (or dynamic impact factor) in many design codes. Due to the road surface deterioration of existing bridges, studies have shown that the calculated impact factors from field measurements could be higher than the values specified in design codes that mainly target at new bridge designs. This paper de...

Abstract In bridge structural health monitoring, typically the dynamic response of system is used to assess condition bridge. However, interaction between a and passing vehicle imposes non-stationarity on response, whereby modal parameters become time-dependent detecting damage, for example, based parameters, becomes challenging. Dynamic vehicle-bridge (VBI) responses have mainly been investiga...

The influence of traffic loads on the dynamic features a bridge is an external factor that can hinder true condition structure. This paper aims to effectuate shift in way this viewed. If interaction between vehicle and modeled using finite element method, response based mass, stiffness, damping matrices coupled vehicle-bridge system vary with location load at each point time. time-varying force...

The performance of bridges under strong wind and traffic is of great importance to set the traveling speed limit or to make operational decisions for severe weather, such as controlling traffic or even closing the bridge. Meanwhile, the vehicle‟s safety is highly concerned when it is running on bridges or highways under strong wind. During the past two decades, researchers have made significant...