CONNECTION STRUCTURE OF BOARD MATERIAL TO CONCRETE STRUCTURE, AND EMBEDED STRUCTURE OF BOARD MATERIAL FOR FORMING DRAINAGE GROOVE INTO CONCRETE FLOOR

摘要

PROBLEM TO BE SOLVED: To enhance connection strength between concrete and board material so as to prevent separation of connection surface by forming a plurality of through holes for placed concrete at intervals at an extension flange of the board material in forming a concrete structure. ;SOLUTION: In connecting structure to connect a board P for forming a drainage groove to a concrete structure F, an extension flange 4 extending downward is bendwise integrated with an outer edge of a flange 3 of the board P, and a plurality of through holes (h) are formed at intervals in the flange 4. Accordingly, in a concrete placing step, the concrete can be flowed smoothly in an inner space of the flange 4 through the holes (h), thereby improving the connection strength between the concrete and the board, preventing separation of connection surfaces and prevent oxidization of concrete beforehand.;COPYRIGHT: (C)2000,JPO