COMPOUND CONCRETE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a compound concrete structure capable of facilitating the construction work of a thin concrete layer and, at the same time, having stabilized durability for a long period of time. SOLUTION: A compound pre-cast structure 1 as the compound concrete structure is equipped with a shear key 6 buried between both jointly incorporated layers (a cement layer 2 and a concrete layer 4). The shear key 6 is equipped with a bolt 61 as a male screw member buried between both layers (the cement layer 2 and the concrete layer 4) and a female screw buried member 62 screwing to the bolt 61 and, at the same time, as a female screw member consisting of a non-organic material buried in at least the concrete layer (the cement layer 2) to be placed thicker than the thickness of cover concrete. COPYRIGHT: (C)2007,JPO&INPIT