SEISMIC RESPONSE OF REINFORCED-CONCRETE BUILDINGS CLOSE TO DEEP EXCAVATION

Ground settlements induced by deep excavation are predicted by the ana lysis of soil-structure interaction, and the seismic response analyses of reinforced concrete buildings with settlements are performed based on the proposed analytical model. Also, the seismic response, the eff ect of variations in the material strengths of steel and concrete and settlement type are studied. II is found that the proposed analytical model can well be employed for such evaluation; normal variation in st eel yield stress can significantly affect the roof displacements and m odified flexural damage ratios of the example frame; the roof displace ments with the settlement type of smooth asymptote are greater than th ose with concave downward asymptote.