Construction Method of Bracket Type Internal Formwork Support System

Abstract

The invention provides a bracket type inner die supporting system construction method. Construction procedures of the construction method sequentially include concrete cup support chiseling and installing, n-shaped steel bracket installing, box beam inner die integral hoisting, template supporting system checking, beam body concrete pouring, box beam inner die drawing out, n-shaped steel bracket dismounting, concrete cup support groove blocking and next-cycle usage after inner die splicing treatment. The construction method can be used for box beam inner dies different in bottom width and beam length at the same time, universality and adaptability are achieved, the inner die mounting and dismounting effect is improved, and the number of arranged inner templates is reduced; and influences of temporary land use on land and early-stage investment are reduced, the usage number of beam pedestal manufacturing steel bars and the usage amount of concrete are reduced to the maximum degree, the later second ploughing difficulty is lowered, the overall energy saving requirement is met, and the guidance significance is achieved for construction of all box beam type prestress concrete structure inner dies.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method of a bracket-type internal mold support system. Background technique [0002] With the development of cities, municipal bridges play an irreplaceable role in urban traffic. Nowadays, the construction of municipal bridges is not only large in scale and diversified, but also requires beautiful appearance. Considering the investment cost, construction units often use concrete structural beams instead [0003] The costly steel structure, the design unit designs the large-volume prestressed concrete box girder structure into various [0004] to meet the needs of the appearance of the bridge. [0005] At present, the inner mold of the prefabricated box girder usually adopts the overall hoisting type and the climbing type. Both installation methods are completed by completing the overall installation of the inner mold on the renovation table, and then ...

AI Technical Summary

Problems solved by technology

This construction method has good integrity, small error, and good stability, but the required project occupies a large area, the reuse rate of the bottom plate and top plate of the inner formwork is small, and it is time-consuming and laborious to disassemble the inner formwork.

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