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Displacement Of Bridge Abutment Under Earthquake Loading, Yulman Munaf, Shamsher Prakash
Displacement Of Bridge Abutment Under Earthquake Loading, Yulman Munaf, Shamsher Prakash
International Conference on Case Histories in Geotechnical Engineering
Bridge abutments may experience significant displacements during earthquakes. A two-dimensional model has been developed considering sliding and overturning displacement and 1) strain dependent soil stiffness and soil damping and 2) horizontal and vertical time dependent seismic load. The displacements are computed from the static equilibrium position where the seismic backfill force increments are considered for determining the active earth force acting behind the abutment wall. This means that the permanent displacement increment occurred if the acceleration acts towards the backfill and the abutment wall moves away from the backfill. The total displacement at the top of bridge abutment is calculated …
Retaining Walls Under Seismic Loading, Vijay K. Puri, Shamsher Prakash, Retno Widanarti
Retaining Walls Under Seismic Loading, Vijay K. Puri, Shamsher Prakash, Retno Widanarti
International Conference on Case Histories in Geotechnical Engineering
The design of retaining walls in seismic areas poses a complex problem. The traditional design approach usually consists of calculation of a factor of safety against sliding, overturning and bearing capacity failure. This is generally enough for static loads. During seismic loading, the retaining walls tend to get displaced from their original position. The performance of quay walls during the past earthquakes emphasizes this fact. For safe design of retaining walls in seismic areas, the calculation of static and dynamic earth pressure behind the retaining walls is the first requirement. Realistic calculation of displacement of the retaining wall is an …