STUDY OF SOIL-STRUCTURE INTERACTION DYNAMIC ANALYSIS ON PILED-RAFT FOUNDATION SYSTEM ON SAND WITH FINITE ELEMENT METHOD

• Main Author: MEIWA - NIM : 25015023, SHERLY
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30927
• Institution: Institut Teknologi Bandung

<p align="justify">Static and dynamic analysis due to seismic load need to be considered in piled-raft foundation system because of frequent earthquake in Indonesia. In piled group, overload of structural load only taken by the piled. While the piled raft foundation system load was distributed to the piled, raft and interaction between soil and structures must be considered in this analysis. Lateral load due to seismic load transferred to the raft and distributed to the pile head and the piles. A lateral deflection occurs, pile and soil around the piles response this load. Soil surrounding interaction caused of deflection of pile, this reciprocal effect is called soil-structure interaction. <br /> <br /> <br /> In this study, Piled raft on seismic analysis was modelled using ABAQUS 2017 software with centrifuge test data from Horikoshi (2003). Parametric study was conducted to review piled-raft Response due to soil-structure interaction effect. This study use Toyoura sand parameter with relative density (Dr) of 60-63%. The study results review the piled-raft response cause by effect sinusoidal dynamic load. Using 3D analysis model in ABAQUS 2017 and Mohr Coulomb as soil model. <br /> <br /> The results review the pile response due to dynamic load on the various pile length and pile combination. Analysis result show soil consistency, piled raft system stiffness, pile length and individual inertial forces of pile affecting bending moment and lateral displacement of the pile. The rigidity of piled raft system has a large effect on its ability to withstand the effects of lateral loads due to static and dynamic load. But in other condition, the length of the pile have more responsible for resisting lateral load deflection.<p align="justify"> <br />