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6/19/13 1 Seismic Design of Reinforced Concrete Mat Foundations: NEHRP Seismic Design Technical Brief No. 7 An Overview Ron Klemencic, P.E., S.E. FACI
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Seismic Design of Reinforced Concrete Mat Foundations: NEHRP Seismic Design Technical Brief No. 7 An Overview
Ron Klemencic, P.E., S.E. FACI
6/19/13
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Soil pressure under centrally loaded foundation
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Bearing pressure distribution example (peak value shown in grey color)
USD v. ASD
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Seismic Demand Levels n Direct Assessment using NLRHA n Over-strength Factors n Reduced, R
Ф = 0.6
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Examples of critical punching perimeter at shear walls
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Backstay effect on moment diagram
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WIDTH?
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Example of edge reinforcement at mat foundation edge
Example of placement diagram to clarify layering
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