Effects of Pounding and Abutment Behavior on Seismic Response of Multi-Span Bridge Considering Abutment-Soil-Foundation-Structure Interactions
نویسندگان
چکیده
This study aims to analyze the longitudinal seismic performance of a typical multi-span continuous girder bridge with seat-type abutments under earthquake excitation, especially accounting for different abutment behaviors. Three-dimensional finite element models bridges are built considering nonlinearity columns, bearings, abutment-backfill interactions, pile-soil and pounding at expansion joints. One adopts simplified bilinear model express force-displacement relationship backwall. The other more practical multi-linear model, backwall is used as sacrificial component control damage abutment’s foundation by changing strength Comparisons results analysis two without indicate that it favorable protect foundation, but likely arouse larger displacement response main beam even cause unseating girders. recommendation in design right yield should be selected reach balance point force displacement, collapse-proof system could employed prevent from unseating.
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ژورنال
عنوان ژورنال: Buildings
سال: 2023
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings13010260