Abstract
Mat foundations, composed with foundation slabs and footing beams, are usually cast-in-place concrete constructions and monolithic structures. This paper proposes the mat foundation system, composed with post-cast (cast-in-place) foundations slabs and pre-cast footing beams, that is the new system of mat foundation. Then we have made a series of experiments, to investigate the slip strength of connections between slabs and beams, according 3 types of connection forms. And also we have investigated the strength of beam to beam connection. The results of those experiments are as follows. The connection with beam side cotter between slabs and beams are satisfied with those slip strength and stiffness. And the strength of beam to beam connections are also enough for practical use.
