Supporting system for construction of super-long water pier prestressed cap beam

Abstract

The invention discloses a supporting system for construction of a super-long water pier prestressed cap beam. The supporting system comprises a support. The support comprises steel braces and steel tube stand columns, wherein every two steel braces are arranged between the two corresponding adjacent water piers and are arranged in a splayed shape, and every four steel tube stand columns are arranged on the periphery of the corresponding water pier. The bottom end of each brace rod is connected with a pin hinge and a support of the pin hinge. The support of the pin hinge at the bottom end of each steel brace is connected with a bearing platform of the corresponding water pier through an embedded steel plate II. The top end of each brace rod and the top end of each steel tube stand column are each provided with a horizontal supporting cover plate. The horizontal supporting cover plates are fixedly provided with longitudinal supporting beams. The two ends of each longitudinal beam are each provided with a stand box. The stand boxes support transverse bearing beams. Multiple longitudinal distributive beams are fixed to the transverse bearing beams. The longitudinal distributive beams form a systematic horizontal supporting face. The supporting system for construction of the super-long water pier prestressed cap beam is high in bearing capacity, high in stability and suitable for construction of the super-long water pier prestressed cap beam with the length being over 40 m, the installation height being over 8 m and the clear intervals between pier bodies being larger than 18 m.

Description

technical field [0001] The invention relates to a construction support system of a cover beam, in particular to a construction support system of an ultra-long prestressed cover beam for an underwater pier. Background technique [0002] At present, domestic large-scale municipal and highway bridges are mostly designed with six or eight lanes in two directions, and three or four lanes in one direction. and the non-stent method. The support method has high requirements on the bearing capacity of the foundation, the cost of foundation treatment is high, and the construction period is limited. A little carelessness in construction can cause the overall support of the support to sink, seriously affecting the construction quality of the cap beam, and it is not suitable for piers in water; no support The common methods of construction are: pre-embedded method, crossing method and hoop method. Although they are suitable for high pier cap beams and underwater cap beams, the three met...

AI Technical Summary

Problems solved by technology

Moreover, in the construction of the above-mentioned cover beams, in order to avoid cracking of local node concrete caused by concrete shrinkage deformation and creep stress on the pier body, it is necessary to adopt a pre-topping process. Usually, it is necessary to erect temporary supports and carry out foundation treatment and The construction of the support frame is difficult, the construction period is long, and the cost is high

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