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Firstly, this book discussed the structural performance of the approach slab under given embankment settlement. Based on a parametric study, a correlation among the slab parameters, deflections, internal moments, and the differential settlements has been established. Based on finite element analysis, internal forces and deformations of ribbed slabs have been predicted and their designs are conducted. Secondly, a fully computerized vehicle-bridge coupled model has been developed to analyze the effect of approach slab deformation on bridges' dynamic response induced by moving vehicles. With this model, a parametric study reveals that the deformation at the approach span causes significant dynamic responses in short span bridges. Finally, this study investigated the possibility of using tuned mass damper (TMD) to suppress the vehicle-induced bridge vibration under the condition of uneven bridge expansion joints.
This book investigates the structural performance of approach slabs and their impact on bridge vibrations induced by vehicle traffic. The research details the structural performance of approach slabs under embankment settlement, establishing correlations between slab parameters, deflections, internal moments, and differential settlements. It further presents a computerized vehicle-bridge coupled model to analyze how approach slab deformation affects bridges' dynamic response to moving vehicles, revealing significant impacts on short-span bridges. The study also explores the use of tuned mass dampers to mitigate vibrations caused by uneven bridge expansion joints.
The research presented in this book offers a detailed technical analysis of approach slab performance and its influence on bridge dynamics. The methodology combines parametric studies with finite element analysis and a coupled vehicle-bridge model to provide quantitative insights. The findings are particularly relevant for engineers involved in the design and analysis of bridges, especially concerning the dynamic effects of traffic and structural deformations.
Page Count:
172
Publication Date:
2010-06-01
Publisher:
Lap Lambert Academic Publishing GmbH KG
ISBN-10:
3838319346
ISBN-13:
9783838319346
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