Piling, pier mounting and beam erecting integrated bridge girder erection machine and bridge building method

Abstract

The invention discloses a piling, pier mounting and beam erecting integrated bridge erecting machine and a bridge building method, and relates to the technical field of bridge erecting. The method comprises the following steps that a bridge erecting machine is installed on a constructed pile foundation or a bridge abutment, the total length of the bridge erecting machine covers the length of a three-span and half-bridge, and prefabricated parts are transported to the tail of the bridge erecting machine from a rear erected bridge deck; a crown block lifts the precast pile foundation to be fixed to a pile driver, the posture and position of the pile driver are adjusted, and pile driving operation is performed at the forefront pile foundation position; and meanwhile, the crown block is used for hoisting prefabricated bridge piers or bent caps from the tail bridge deck to be installed on the middle pier pile foundations, a prefabricated bridge is hoisted to be installed between two bridge piers of a rear span, after work of the three working surfaces is completely completed, the integrated bridge girder erection machine longitudinally moves by one span towards the front of construction, and the steps are repeated till erection of the whole bridge is completed. According to the invention, the requirement of bridge building construction on the construction environment is low, the influence is small, and meanwhile the bridge building construction cost and construction difficulty in some special areas are reduced.

Description

technical field [0001] The invention relates to the technical field of bridge erection, in particular to a bridge erecting machine integrated with piling, pier installation and beam erection and a bridge construction method. Background technique [0002] At present, during bridge construction, holes are usually drilled first, then the pile foundation is poured, and then the formwork is used to construct the pier, and then the prefabricated sections of the bridge are assembled or cast-in-place. It is necessary to set up construction access roads or trestle bridges in advance to transport equipment and materials required for construction, and dismantle them after bridge construction is completed. However, when the bridge is located in some special areas, such as forest reserves, animal protection areas, wetland protection areas with high environmental protection requirements, or bridge construction sites where construction is difficult, such as shallow water areas, narrow brid...

AI Technical Summary

Problems solved by technology

However, when the bridge is located in some special areas, such as forest reserves, animal protection areas, wetland protection areas with high environmental protection requirements, or bridge construction sites where construction is difficult, such as shallow water areas, narrow bridge construction sites and slopes, etc. , the traditional construction method not only has a certain damage to the environment, but also has high construction difficulty and cost

Images