A Study on the Formulation of the Interaction Problem between Upper Structure and the Ground under Consolidation

J. Ocean Eng. Technol. 1999;13(1):51-61.

Lee, Oe-Duck;

上部構造와 下部壓密地盤間 상호작용 문제의 정식화에 대한 연구

이외득;

동의대학교 공과대학 토목공학과;

Keywords: Non-Linear Interation Problem, Boussinesq's Elastic Half-Space, Flexural Rigidity of the Upper Structure, Distributing Contact Pressure, Self-Equilibrating forces

핵심용어: 비선형 상호작용 문제, 보시네 반무한 탄성지반, 상부구조의 휨강성, 분포 접지압, 자기 평형력계

Abstract

When a structure is built on the ground under consolidation, the instant corresponding contact pressure which the upper structure exerts on the ground is established. But, as the consolidation of the ground proceeds, the contact pressure is changed because of the flexural rigidity of the upper structure. This varied contact pressure exerts influence on the consolidation behavior of the ground. And, this varied consolidation behavior exerts on the contact pressure in retum. This kind of interaction between the upper struture and the olwer ground under consolidation contimues till all the consolidation process in finished. So this problem cannot be defined as a linear problem. In this paper an approximation method which can analyse this non-linear interaction problem is proposed by the FEM.