Numerical model updating using the data measured from actual structure is required in order to minimize error between initial numerical and structure. Field load tests, which are conducted assess condition safety of high-speed railway bridges, generally expensive restricted by control weather conditions. Therefore, a method for evaluating performance bridges updated models without conducting fi...

ABSTRCT: Elastic bearings have been used on simply supported bridges on high-speed railway in Taiwan to isolate train-induced vibration. However, their influence on dynamic behavior of the vehicle and bridge has not been fully investigated, and their vibration attenuation has not been quantificationally discussed. In this study, spring-damper elements with 12 degrees of freedom are established ...

high speed trains are an indispensable part of rapid transportation systems in many countries. as the fastest means of transport on the ground, these trains are extremely sensitive to the terrain and track conditions. geometrical irregularities and mechanical characteristics of the track, together with inconsistencies in the lane (including bridges that support the track) are considered importa...

Abstract Ambient vibration tests and operational modal analysis are commonly adopted worldwide to identify the dynamic behaviour of structures because they offer several advantages such as use portable light equipment, possibility be performed without interruptions structure serviceability, ambient noise globally excite construction. also usually in structural health monitoring systems control ...

Abstract Bridge construction is one of the cores traffic infrastructure construction. To better develop relevant bridge science, this paper introduces main research progress in China and abroad 2021 from 12 aspects. The content consists four parts first part about structure analysis theories, including concrete high-performance materials, steel bridges, composite girders cable-supported theorie...

The present aim of this study is to investigate the effect of different parameters influencing pounding in highway bridges. Pounding is the result of a collision between two parts of the deck and/or the deck and abutments at the separation distance during the earthquake.  In the present study, the period ratio of the adjacent frames, ground motion spatial variation, and soil-structure interacti...