INPUT LOSS EFFECT AND SIMPLE EVALUATION METHOD OF TOTAL STRUCTURE IN THE RIGID-FRAME VIADUCTS WITH PILE FOUNDATIONS

Abstract

 The present study focuses on input loss of rigid-frame viaduct with pile foundations. It is well known that existence of pile foundation causes the input loss due to the effect of the kinematic interaction between soil and pile. Higher effect of input loss is expected for such a rigid-frame viaduct, because the rigidity for out-of-plane direction of the girder and beams would restrain the behavior of free field along the longitudinal direction. Though the input loss effect caused by the entire viaduct system has not been well known yet. Therefore, the characteristics and evaluation method of input loss of the rigid-frame viaduct with pile foundation are investigated in detail.