Method for bridge-spanning construction by using tyre carrier

Abstract

The invention discloses a method for bridge-spanning construction by using a tyre carrier. The method comprises the following steps of: designing and manufacturing a high-altitude tyre carrier, erecting 3 box girders serving as an initial platform of a bridge girder erection machine by using the carrier, and hoisting the bridge girder erection machine and a girder transport vehicle on a bridge; loading girders on the girder transport vehicle by using the carrier in a mode of spanning the bridge; ensuring that the bridge girder erection machine and the girder transport vehicle return after lateral girder erection, hoisting the bridge girder erection machine and the girder transport vehicle down from the bridge, and making the bridge girder erection machine and the girder transport vehicle turn around; erecting 3 girders serving as an initial platform in an initial direction on the other side, and hoisting the bridge girder erection machine and the girder transport vehicle on the bridge; reserving 2 girders which are not erected between the initial platforms in the two girder erection directions, and using the 2 girders as a channel for the carrier to transversely enter the axis of the bridge; after the bridge girder erection machine and a girder transport vehicle finish erecting the girders, hoisting down from the bridge, and detaching; and erecting the last 2 box girders by using the carrier. The method has the advantages that: one high-altitude carrier is used to realize functions of two pieces of equipment, namely a carrier and a girder gantry crane in the conventional construction, and the cost is reduced; the tyre carrier directly loads the vehicle by spanning the bridge, and construction links are reduced; and the tyre carrier is used for directly loading the vehicle, so that the construction efficiency is improved.

Description

technical field [0001] The invention relates to a method for the construction of high-speed railways, when the box girder field is set on the bridge section, the box girder is reversed in the field by using a tire type transfer machine, the upper and lower bridges are hoisted by the bridge erecting machine and the beam transporter, and the box girder is installed across the bridge. The method of car construction. Background technique [0002] In the construction of high-speed railway box girder erection, when the girder field is located in the bridge section, two 450T gantry cranes are usually used to erect 3-5 pieces of box girders, which are used as the starting platform of the bridge erecting machine, and the hoisting of the bridge erecting machine and beam transport vehicles The loading of upper and lower bridges and box girders are all done by 450T gantry cranes. The beam yard needs to be additionally equipped with a tire-type handling machine to transport the box gird...

AI Technical Summary

Problems solved by technology

The investment in 450T gantry crane equipment is large, and the foundation treatment is complicated. After the box girder needs to be switched to the temporary pedestal by the transfer machine, it is then lifted by the beam lifting machine to the bridge and loaded on the truck, which increases the construction process and increases the construction cost.

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