Method for constructing bridges

Abstract

The invention discloses a method for constructing bridges. The method comprises the following steps of 1) selecting a prefabricated bridge field under the bridge; 2) flattening and planning the prefabricated bridge field; 3) setting prefabricated abutment bases and bridge storage abutment bases in the bridge field, and setting and mounting a bridge field crane, wherein the bridge field crane is arranged on two rails parallel with the bridge, a bridge fabricating area, a bridge storing area and a bridge carrying passage are arranged between the two rails, and the bridge carrying passage is positioned on the side of the bridge fabricating area, near the bridge position; 4) mounting a lifting crane of the prefabricated bridge of the bridge, wherein the lifting crane comprises two fixed gantry cranes, the gap between the two fixed gantry cranes is matched with the length of the prefabricated bridge of the bridge, the gantry cranes are transversely straddled on the bridge surface, and the bridge carrying passage is positioned in gantries of the gantry cranes; 5) constructing the prefabricated bridge of the bridge; 6) carrying the prefabricated bridge of the bridge to the area below the lifting crane; 7) lifting the fabricated bridge to the bridge to form a first section of the bridge surface; and 8) using a bridging machine to complete the bridge erection operation. The method has the advantage that a safe and effective method is provided for the construction and erection of the prefabricated bridge of the bridge in mountain areas, so the high quality and stable quality are ensured during construction, the construction cost is reduced, and the construction period is shortened.

Description

technical field

[0001] The invention relates to a construction method of a bridge. Background technique

[0002] At present, in China's Yunnan, Sichuan, Guizhou, Guangxi and other regions, because they are located in mountainous areas, the natural terrain is high mountains and ravines, and the selection of highways is generally connected by bridges, bridges, short foundations, and bridges and tunnels. It causes great difficulties, especially when there is no long section of formed subgrade in a short period of time, the construction of bridge prefabricated beams has just encountered a "bottleneck". How to ensure that there is no long section of formed roadbed in the mountainous area and it is impossible to set up a prefabricated beam yard on the roadbed, and that the project can be delivered on time according to the contract is a problem that needs to be solved in bridge construction for a long time. Contents of the invention

[0003] The present invention provides a brid...

Images