Mountainous area multifunctional bridge conveying-erecting machine and bridge-erecting method

Abstract

The invention provides a mountainous are a multifunctional bridge conveying-erecting machine, which relates to bridge-erecting equipment. The invention aims to provide a mountainous area multifunctional bridge conveying-erecting machine which can effectively solve the problem of erecting bridges in tunnels and first holes outside tunnel portals and can erect the bridges with small curve radius, as well as a bridge-erecting method. The multifunctional bridge conveying-erecting machine comprises a bridge conveying-erecting machine and a lower beam-guiding machine, wherein the bridge conveying-erecting machine comprises a girder, a front moving wheel set and a back moving wheel set; the front and back moving wheel sets comprise a plurality of wheel pairs, a front longitudinal frame and a back longitudinal frame; the beam-guiding machine comprises a guide beam, a front roller support leg, a middle roller support leg and a back roller support leg; the top of the guide beam is provided witha movable bridge-erecting trolley; a lead beam horizontally extending forwards is arranged on a front support frame on the front longitudinal frame; at least one fulcrum and a brake mechanism are arranged on the bridge-erecting trolley; the fulcrum can slide backwards along the bottom of the lead beam; and the wheel pairs of the front moving wheel set are controlled by an electro-hydraulic systemto be gradually lifted in the moving process so as to change the front support force of the girder from the front moving wheel set to the bridge-erecting trolley.

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...

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