Rubber-tyred beam lifter small-curve-radius unbalanced cantilever and assembly construction system

Abstract

The invention belongs to the technical field of bridge construction, and discloses a rubber-tyred beam lifter small-curve-radius unbalanced cantilever and assembly construction system. The rubber-tyred beam lifter small-curve-radius unbalanced cantilever and assembly construction system comprise an image acquisition module, an information acquisition module, a central control module, a three-dimensional model construction module, a sequence determination module, a positioning module, a calculation module, a loading data determination module, a grabbing module, a movement control module, an adjustment module and a construction result visualization module. According to the system, the limitation of symmetrical hoisting can be avoided, the huge economic cost for meeting the transportation condition on the premise of symmetrical hoisting is avoided, and the application range of the bridge cantilever assembly technology is greatly widened; and the steps are simple, the design is reasonable, construction is easy and convenient to construct, the using effect is good, the construction process is safe, the construction period is short, and the input construction cost is low.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a small-curve-radius unbalanced cantilever of a tire-type beam lifting machine and an assembled construction system. Background technique [0002] At present: the cantilever assembly method is to use a mobile suspension crane to lift the beam section to the bridge position, and then use epoxy resin glue and steel wire bundles to prestress and connect them into a whole. Assembled segment by segment, after one segment is tensioned and anchored, the next segment is assembled. The segment of the cantilever assembly is mainly determined by the lifting capacity of the cantilever crane, and the general segment length is 2-5 meters. If the segment is too long, it will be self-heavy, which requires a large lifting capacity of the hanging crane; if the segment is too short, there will be many assembly seams and the construction period will be extended. [0003] Th...

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Problems solved by technology

[0003] The existing cantilever assembly is mainly aimed at the balanced type, but in actual construction, since bridges using cantilever assembly technology usually need to span existing rivers, railways, expressways and other structures, if mobile bridge deck cranes are used for installation, often The transportation conditions in the above premise cannot be met, resulting in "symmetric lifting and installation cannot be realized on both sides of the pier"; or the transportation conditions can be met, but the cost is too high, which is not economically cost-effective

[0004] Through the above analysis, the problems and defects of the existing technology are: the existing cantilever assembly construction method cannot meet the unbalanced construction scene, and the construction cost is too high

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