Main girder end reinforcement for use in the reinforcement method and the method of the main girder ends

摘要

PROBLEM TO BE SOLVED: To provide a main girder end part reinforcing member having a cut-out section without reducing strength of a main girder end part.;SOLUTION: This main girder end part reinforcing member is formed by an outer main girder outer side reinforcing member 18 provided with the cut-out section 23 and a flange part 24 in a web member 22, an outer main girder inner side reinforcing member 19 provided with the cut-out section 28 and a flange part 29 in a web member 27, and an outer main girder inner side girder end reinforcing member 20 provided with a flange part 34 at a lower end of a web member 33. The outer main girder outer side reinforcing member 18 is fixed on an outer side face of a web 17 in a girder end part of an outer main girder 4 by using a bolt. The outer main girder inner side reinforcing member 19 is fixed on an anti-girder end side more than an end horizontal girder installation position (a) on an inner side face of the web 17 in the girder end part of the outer main girder 4 by using a bolt. Next, the web 17 of the outer main girder 4 is cut at positions along the cut-out sections 23, 28 of the reinforcing members 18, 19, 20 to form the cut-out section 21. After that, the end horizontal girder is removed, and then the outer main girder inner side girder end reinforcing member 20 is attached to the inner side face of the web 17 in a girder end edge part of the outer main girder 4 for reinforcement.;COPYRIGHT: (C)2010,JPO&INPIT