Method and equipment for mounting precast beam

Abstract

The invention relates to a prefabricated beam mounting method used for mounting prefabricated beam on the coping of bridge spanning old bridge or other barrier, which comprises the following steps: a, manufacturing a beam moving dolly according to the weight, structure and shape of the prefabricated beam; b, mounting the bailey launching nose between the copings and mounting the beam moving dolly on the bailey launching nose; c, hanging the prefabricated beam to the beam moving dolly by a crane and conveying the beam moving dolly along the bailey launching nose to the target position between the copings; d, mounting the prefabricated beam to the designed position by the crane. The prefabricated beam mounting method achieves the advantages of low cost, high construction efficiency and simple operation. The invention further discloses an equipment for mounting prefabricated beam.

Description

Technical field [0001] The present invention relates to a method and equipment for installing prefabricated beams, and in particular to a method and equipment for installing prefabricated beams on bridges with a small amount of engineering across old bridges or other obstacles. Background technique [0002] At present, when large-scale prefabricated beams of bridges are used to hang beams across bridges, large-scale bridge erecting machines are generally used for beam construction. The conventional construction method of bridge erecting machines is: first use bridge erecting machines to hoist the precast beams to adjacent spans, and then use bridge erecting machines Perform via construction. Due to the large amount of engineering and time-consuming installation and assembly of the bridge erecting machine, the construction method using the bridge erecting machine operation is mainly used for the large amount of beam erection and the construction period is not affected by the arriv...

AI Technical Summary

Problems solved by technology

However, when the bridge needs to cross the old bridge or other obstacles or the bridge needs to be normally open to traffic, due to the obstruction of the old bridge or obstacles or traffic flow, it is impossible to use the crane to move the prefabricated girders to the desired installation position after the girder truck transports the prefabricated beams to the desired installation position. The beam is hoisted from under the cover beam to the cover beam, that is, the installation of prefabricated beams cannot be completed

Therefore, the above method cannot be used to install prefabricated beams on the cover beams of bridges spanning old bridges or obstacles under the condition of small amount of work, short construction period and low construction cost, that is, it cannot meet the requirements of existing bridge construction

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