JOINT STRUCTURE, JOINT, AND EXECUTING METHOD FOR CONCRETE SECONDARY PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a coupling structure suitable for placing linear concrete secondary products on a curved part. SOLUTION: Many concrete secondary products 1 are arranged in a flow passage direction S and form a flow passage 21 with concrete walls 11. A flexible ring-like joint 3 is interposed in each connection part 2. The joint 3 comprises a band part 31 extending along the connection part 2 and ends 32 positioned at both ends of the band part 31. The band 31 has a width W variable in the circumferential direction D1 according to a crossing angleθ1 between center lines 22 of the flow passages of adjacent concrete secondary products 1, and the ends 32 have a mounting part 32a mounted to the concrete wall 11.