| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a bridge falling preventive apparatus using PC steel rod and PC steel stranded wire, wherein it is necessary to drill insertion holes for passing these in a PC pretension girder, the work is difficult, and an abutment parapet, the PC pretension girder, and the PC steel rod and PC steel stranded wire used in the PC pretension girder are limited in movement, so that there is the possibility of their bending to break for complicated movement. SOLUTION: In this bridge falling preventive apparatus, a cylindrical flexible body is provided on the outer periphery of a rope-like buffer body, which is long to stride over a play between the abutment parapet and the PC pretension girder on the abutment, a fixing body, one end of which is provided with a bearing body, is connected to both ends of the rope-like buffer body made of aramid fiber or the like, one fixing body is buried and fixed in the rear face of the abutment parapet, the other fixing body is buried and fixed between the juxtaposed PC pretension girders, and the abutment and the PC pretension girders are connected to each other. COPYRIGHT: (C)2008,JPO&INPIT
|
