Seismic Load on Underground Structures?
Seismic Load on Underground Structures?
(OP)
For an underground multi-story basement structure, will the seismic load be citical to the design of the structure? If so, how the lateral quake loads be modelled?





RE: Seismic Load on Underground Structures?
It is also possible that the soil mass will not move and therefore develop a certain amount of passive pressure on the side opposite inertia force.
You'll need to investigate some similar applications in soil-structure interaction.
RE: Seismic Load on Underground Structures?
Can you point me to some of the reference materials. Thanks.
RE: Seismic Load on Underground Structures?
however for analysis u can assume some racking for example around 5-7mm for the structure about all the axis and check the forces.
irrespective of the analysis resulta the detailing must be done following the ductility provisions which is very important.
ARIF ALI SIDDIQUI
STRUCTURAL DESIGN ENGINEER
IMCC 8 JANTAR MANTAR MARG
NEW DELHI INDIA
RE: Seismic Load on Underground Structures?
We generally use Mononobe Okabe method, which is basically a modification of the simple coulomb method for active and passive pressures. You can find the proceedure in any geotechnical reference. My personal favorite is Foundation Analysis and Design by Bowles.