JOINT STRUCTURE OF SEGMENT

PROBLEM TO BE SOLVED: To propose a joint structure of a segment capable of reducing cost, and capable of realizing high rigidity of a joint part.SOLUTION: In a joint structure 4 for locking an insertion member 5 projected on an end surface of one segment 1 on a receiving member 6 formed on an end surface of the other segment 1, the insertion member 5 comprises an insertion plate part 51 fixed to a main girder 21 of the one segment 1 and an insertion locking part 52 projected in a tip part of the insertion plate part 51, and the receiving member 6 comprises a box-shaped receiving body part 61 for opening in a corner part between the main girder 21 of the other segment 1 and an end plate 22, and fixed to the corner part and a receiving locking part 62 formed on an inner surface of the receiving body part 61 and lockable on the insertion locking part 52.SELECTED DRAWING: Figure 2 【課題】コストの低減化および継手部の高剛性化を図ることを可能としたセグメントの継手構造を提案する。【解決手段】一方のセグメント１の端面に突設された挿入部材５を、他方のセグメント１の端面に形成された受け部材６に係止させる継手構造４であって、挿入部材５は、一方のセグメント１の主桁２１に固定された挿入板部５１と、挿入板部５１の先端部に突設された挿入係止部５２とを備えており、受け部材６は、他方のセグメント１の主桁２１と端板２２との角部において開口しているとともに、当該角部に固定された箱型の受け本体部６１と、受け本体部６１の内面に形成されて、挿入係止部５２と係止可能な受け係止部６２とを備えている。【選択図】図２