Integrative bridge erection machine of shift type transporting and erecting girder and bridge erecting method

Abstract

The invention provides an integrative bridge erection machine of a shift type transporting and erecting girder, which relates to a bridge erecting device. The invention aims at providing an integrative bridge erection machine of a shift type transporting and erecting girder and a bridge erecting method, which effectively solves of erecting a bridge in a tunnel and a first hole out of a tunnel opening and erecting a bridge with a smaller curve radius. The integrative bridge girder erection machine of the shift type transporting and erecting girder comprises a girder transporting and erecting machine and a lower girder guiding machine, wherein the girder transporting and erecting machine comprises a girder, a front running wheel group and a rear running wheel group; the lower girder guidingmachine comprises a guiding girder, front, middle and rear roller wheel legs and a girder erecting dolly; the movable girder erecting dolly is arranged on the guiding girder, the front part of a maingirder is provided with a main girder shifting and stretching section which extends forwards, the connection of the main girder shifting and stretching section and the main girder is provided with a downward shift supporting seat, and a shift supporting and moving mechanism is arranged on the girder erecting dolly and can slide along the bottom of the main girder shifting and stretching section under the shift supporting seat. When the erection moves ahead, the shift supporting and moving mechanism is raised step by step by the running wheel groups to convert the load to the girder erecting dolly step by step, thereby completing the conversion of carrying and supporting points.

Description

technical field [0001] The invention relates to bridge erecting equipment, in particular to an integrated bridge erecting machine for transporting and erecting girders. Background technique [0002] At present, the existing integrated bridge erecting machine for transporting and erecting girders, such as the bridge erecting machine disclosed in Chinese utility model patent ZL200420115944. , it is necessary to return the guide beam several times so that the front wheel set of the girder erecting machine can fall on the bridge surface, and the guide beam is longer and located at a certain distance from the bridge surface, which leads to a large limit on the curve radius when erecting a curved bridge. There are many procedures in the erection process, which is time-consuming and laborious, and the efficiency is low. In addition, when the first hole concrete beam is erected at the exit of the tunnel, because the lifting height of the concrete beam in the tunnel is limited by th...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a bridge that effectively solves the problem of bridging in the tunnel and the first hole at the exit of the tunnel and erects a bridge with a smaller curve radius, so that it can be transferred in the case of poor construction conditions in mountainous areas. It is more convenient, flexible, time-saving, labor-saving and efficient when turning around, erecting isolated bridges, wild bridges, etc.

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