EXPERIMENTAL STUDIES ON NON-LINEAR RESPONSE OF SOIL-PILE-STRUCTURE SYSTEMS SUBJECTED TO STRONG GROUND MOTION

摘要

Dynamic experimental studies of response curves of laterally loaded model soil-pile-structure systems subjected to strong ground motion possesses great importance in understanding the response of actual pile supported structures subjected to the earthquake loadings. Model tests on instrumented pile groups for the non-embedded footing case have been conducted for different configuration of the pile groups to study the response behavior accompanied by the bending and vertical strains subjected to strong ground motions. Two different cases with and without the embedment of piles in the bedrock have been studied. And a third category that comprised without any piles has also been taken in account. Test results reveal that the end-bearing pile system shows the least damping while the system without piles shows the highest damping accompanied by the highest rocking of all the systems studied. The bending and vertical strain profiles are also presented for the pile groups.