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Showing results for tags 'Soil Pressure'.
Found 4 results
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Dear All, I am modeling the raft of 11 storey Commercial + Residential building. The Plan of raft is attached in Jpeg format. Problem is that in periphery where basement wall is located and in the locations where shear Walls are modeled soil pressure is exceeding 3 times the allowable soil bearing pressure. The exceeding pressure area is hardly 10 percent of the total raft area. The reactions are even more in center of the raft but pressure is more in periphery. I am unable to understand this behavior. Kindly advise. Pressure Diagram is also attached in jpeg, yellow and red areas are the one where pressure is exceeding. Regards, Ahsan Ali
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How to check the soil pressures in SAFE? What is difference between min and max pressures? and what is allowable limit?
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I have modeled B+G+6 story in etabs and exported its base with 9" thick and 12 feet high RCC wall with option (export floor loads plus column and wall distortion). In Safe initially i defined raft and soil support properties. after analysis the minimum soil pressure was out range (7 ksf) while my allowable limit was 2.25ksf. Then i selected all the joint points of wall and assigned them fix supports the soil pressure suddenly reduced to almost zero value. Question is that which strategy of modeling is correct? Secondly when we export wall from etabs to safe its property changes to beam why this happens? Model is attached below. Raft 12.FDB
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Respected Engineers! what is the procedure to check soil pressure on safe and by using which combination. what is the procedure to pass soil pressure?
