SEISMIC STRENGTHENING STRUCTURE AND SEISMIC STRENGTHENING METHOD FOR EXISTING STRUCTURE, AND INTERVAL MAINTAINING MEMBER OF THE SEISMIC STRENGTHENING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To surely infill a consolidation material by preventing the generation of an air lock; and to surely prevent leakage of the consolidation material by increasing the strength of an interval maintaining member.;SOLUTION: This seismic strengthening structure includes: an anchor bolt 2 which is provided on an edge surface of an opening 1a of an existing structure; an approximately frame-like seismic strengthening frame 4 which is installed in the opening 1a; a stud bolt 3 which is provided on its outer peripheral surface; forms 5a and 5b which are arranged on both side outer surfaces of its peripheral edge so as to close a gap between the seismic strengthening frame 4 and an edge surface of the opening 1a; the interval maintaining member 6 which holds the opening 1a edge surface side of the forms 5a and 5b at a predetermined interval; and the consolidation material (g) which is solidified after being infilled into a consolidation material filling area S, surrounded by the seismic strengthening frame 4, the edge surface of the opening 1a and the forms 5a and 5b, in such a manner as to embed the anchor bolt 2 and the stud bolt 3 therein. In the interval maintaining member 6, both ends are provided with engaging portions 61 which have approximately U-shaped recessed grooves 61a undergoing the insertion and engagement of the forms 5a and 5b, respectively; and the engaging portions 61 and 61 at both the ends are connected together by means of a rod body 62.;COPYRIGHT: (C)2011,JPO&INPIT