건물 지하공사를 위한 EG-Fram공법에서 CIP 흙막이 지지보의 응력전달해석

In EG-Frame system, workability for construction is able to be improved and it is possible to make it ease the casting of concrete of retaining wall because of not using reverse casting of concrete. The soil pressure is transmitted to architectural retaining wall through a small composite concrete beam which is composed with steel plate in the system. Therefore, it is necessary to verify stress flow in the beam in order to evaluate the structural safety. This paper presents a finite element analysis result of the composite concrete beam by using MIDAS-FEA program to find stress flow. Especially, effective width is dealt with based on the analysis result. As a result, the stress tends to be concentrated due to the round shape of CIP.