A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Analysis for Design of Retrofit of Gravity Bridge Abutments
A revised analytic method is described for determining the most critical threshold acceleration. The method considers the possibility of sliding, bearing capacity, or mixed modes of failure. Details of the load transfer between the bridge abutment and the bridge deck are also incorporated. To verify the accuracy of the newly developed analytic method, a series of shaking table tests was conducted on model bridge abutements. Models could fail by sliding, excessive tilting or a mixed mode depending on the geometry of the wall, connection details between the bridge abutment and the bridge deck, and properties of the backfill and foundation soils. The results from these tests verify the analytic procedure for predicting critical threshold acceleration based on simple theory. It is now possible, with this analytic tool, to evaluate the seismic vulnerability of existing abutments. The theory also relates directly to design recommendations to increase the seismic capacity of both existing bridge abutments and new designs.
Seismic Analysis for Design of Retrofit of Gravity Bridge Abutments
A revised analytic method is described for determining the most critical threshold acceleration. The method considers the possibility of sliding, bearing capacity, or mixed modes of failure. Details of the load transfer between the bridge abutment and the bridge deck are also incorporated. To verify the accuracy of the newly developed analytic method, a series of shaking table tests was conducted on model bridge abutements. Models could fail by sliding, excessive tilting or a mixed mode depending on the geometry of the wall, connection details between the bridge abutment and the bridge deck, and properties of the backfill and foundation soils. The results from these tests verify the analytic procedure for predicting critical threshold acceleration based on simple theory. It is now possible, with this analytic tool, to evaluate the seismic vulnerability of existing abutments. The theory also relates directly to design recommendations to increase the seismic capacity of both existing bridge abutments and new designs.
Seismic Analysis for Design of Retrofit of Gravity Bridge Abutments
K. L. Fishman (author) / R. Richards (author) / R. C. Divito (author)
1997
126 pages
Report
No indication
English
Highway Engineering , Highway bridges , Seismic design , Earthquake engineering , Retrofitting , Bridge abutments , Bridge foundations , Retaining walls , Sliding , Displacement , Acceleration , Ground motion , Seismic effects , Earthquake resistant structures , Soil-structure interactions , Load bearing capacity , Failure mode analysis , Soil mechanics
Seismic Design of Monolithic Bridge Abutments
| NTIS | 1986
Seismic Movement at Bridge Abutments
| British Library Conference Proceedings | 1996
Semi-Integral Abutments in Bridge Seismic Design
| British Library Conference Proceedings | 1997
Nonlinear Stiffnesses of Abutments on Spread Footings for Seismic Design and Retrofit
| British Library Conference Proceedings | 1998
Seismic Analysis and Model Studies of Bridge Abutments
| British Library Conference Proceedings | 1996