JOINT STRUCTURE OF BOTTOM SLAB AND SIDE WALL OF CONCRETE TANK

摘要

PROBLEM TO BE SOLVED: To introduce prestress to the part between a lowermost side wall block and a bottom slab without introducing the prestress to a part other than the part between the lowermost side wall block and the bottom slab. SOLUTION: An intermediate nut 40 is arranged on an outer face of a hollow steel rod 10 between a supporting holder 30 and an end holder 20 of a prestress introducing device 1, and an unbonded layer 41 is provided to cover an outer face of the hollow steel rod 10 between the intermediate nut 40 and the supporting holder 30. The hollow steel rod 10 between the intermediate nut 40 and the end holder 20 is arranged in a manner of extending through the part between the lowermost side wall block 54 constituting the side wall 52 and the bottom slab 51. A tensioning force introduced to the hollow steel rod 10 by releasing anchoring obtained by the supporting holder 30 is introduced as the prestress only to concrete bonded to the hollow steel rod 10 between the end holder 20 and the intermediate nut 40, whereby the bottom slab 51 and the side wall 52 are joined to each other. COPYRIGHT: (C)2009,JPO&INPIT