To estimate the fatigue life of long-span steel bridge more accurately, this paper proposes a method for estimating the fatigue life of long-span bridges by considering vehicle-bridge coupled vibration. Firstly, the universal equation of vehicle-bridge vibration is derived based on triaxial standard multi-scale model of fatigue vehicle and bridge, and relevant program for vehicle-bridge coupled...

Long-span cable-stayed bridges often have a design service life of more than hundred years, during which they may experience multiple earthquake events and accumulate seismic damage if are located in seismic-prone regions. Earthquake occurrence is discretely randomly distributed over the cycle long-span bridge causes sudden drops structural performance instead yearly fixed degradation. This stu...

In recent years, efforts have been devoted to utilizing terrestrial laser scanning for bridge spatial performance inspection, but they are still restricted small or medium-span bridges, like some historical heritages. Due the large-scale dimensional features of long-span applications 3D point cloud techniques remain challenging, such as extra-long scan range and extreme-small incidence angle wh...

As one of the main characteristics of seismic waves, apparent wave velocity has great influence on seismic responses of long-span suspension bridges. Understanding these influences is important for seismic design. In this article, the critical issues concerning the traveling wave effect analysis are first reviewed. Taizhou Bridge, the longest triple-tower suspension bridge in the world, is then...

The research program consists of a series of investigations in the field and in the laboratory. First, four short-span bridges are installed so as to outline the construction-related issues associated with the use of these materials. The bridges are located in a residential area of St. James, Missouri and each bridge utilizes FRP materials in a slightly different way, demonstrating the versatil...