Rear supporting point triangular bracket hanging basket and bridge construction method using same

Abstract

The invention discloses a rear supporting point triangular bracket hanging basket, which comprises (1) a bearing platform, (2) a suspension fixing system used for supporting and fixing the bearing platform on poured concrete; (3) a template system, and (4) a walking system. The rear supporting point triangular bracket hanging basket provide by the invention is supported and fixed on a poured edge main girder through hanging arms arranged at the middle part and the rear part of the hanging basket; the front part extending forwards is a suspension arm which can be used for bearing the pouring construction of the edge main girder, thus, a bridge guy cable does not need to bear forces, in such a way, the overall hanging basket system is stressed uniformly, the appearance of the hanging basket is more light, and the mobile construction operation can be carried out more conveniently; on the other hand, by adopting the triangular bracket hanging basket, a construction way of pouring the edge main girder firstly and then pouring a rear bridge top plate and a transverse partition plate can be adopted; the edge main girder, the top plate and the transverse plate are constructed separately in order, thus, the adverse influence of the edge main girder pretensioned force to the top plate is solved, the edge main girder pretensioned force can be ensured not being shared and weakened by the top plate, and moreover, the pretensioned force can be applied to the edge main girder more correctly.

Description

technical field [0001] The invention mainly relates to the technical field of bridge cast-in-place concrete box girder construction, in particular to a hanging basket used for the suspension pouring construction of cable-stayed bridges. Background technique [0002] In recent years, with the continuous development of my country's economic construction, there are more and more bridges spanning rivers, rivers and canyons. Cable-stayed bridges play an important role in the construction of long-span bridges because of their good mechanical properties, relatively economical construction and beautiful landscapes. [0003] For the construction of the main beam of the cable-stayed bridge with a width of 30-40m, how to ensure the construction quality and structural durability of the main beam, the design of the construction hanging basket is very important. Due to the standard section width of the cast-in-situ section of the main girder, the high height of the main girder and the th...

AI Technical Summary

Problems solved by technology

[0004] (1) There are many embedded parts during the construction process, and the embedded parts cannot be recycled, resulting in a serious waste of materials

[0005] (2) The position of the stay cable is relatively restricted

[0009] The above-mentioned hanging baskets are not suitable for the cantilevered construction of the main girder first and then the deck and beam concrete of the cable-stayed bridge.

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