Abutment inertia seismic force
Abutment inertia seismic force
(OP)
Have a single span bridge with a cantilever type abutment about 30' height.
I used the Mononobe Okobe method to get the Seismic active earth pressure coefficient on the cantilever type abutment. How do I incorporate the inertial force of the abutment concrete as an overturning moment in a seismic event? Is this necessary? Thanks.
I used the Mononobe Okobe method to get the Seismic active earth pressure coefficient on the cantilever type abutment. How do I incorporate the inertial force of the abutment concrete as an overturning moment in a seismic event? Is this necessary? Thanks.





RE: Abutment inertia seismic force
Beyond that you need to use F(lateral) = W(a) and so for every part of the abutment you need to calculate a lateral force and then determine the resultant of all parts along with the distance of the resultant force from the point of the stability check.
Regards,

Qshake
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RE: Abutment inertia seismic force
RE: Abutment inertia seismic force
As good as anything...