Assembling process of light segment prefabricated assembling bent cap

Abstract

The invention discloses an assembling process of a light segment prefabricated assembly bent cap, which belongs to the technical field of bent cap construction, and comprises the following steps of: mounting a prefabricated pier top segment on a pier column on a construction site by using a hoisting machine, respectively smearing sealant on the connecting end surfaces of a prefabricated standard segment, an end segment and the pier top segment, and sealing the prefabricated standard segment, the end segment and the pier top segment; in the transverse extending direction of the bent cap, at least one standard section is sequentially spliced and connected to the side end face of the pier top section in a cantilever mode through a hoisting machine, and the transverse channel communicates with a hollow cavity channel of the standard section; splicing and connecting an end section on a standard section which is connected with the side end of the pier top section along a transverse cantilever of the bent cap by utilizing a hoisting mechanical cantilever; and after the bent cap is assembled into a whole, arranging a plurality of prestressed tendons in the bent cap in a penetrating mode in the transverse stretching direction for fastening and tensioning. According to the assembling process, the light prefabricated sections are adopted, a large number of supporting frames and formworks do not need to be adopted, and the weight of each section and dependence on heavy machinery are reduced.

Description

technical field [0001] The invention belongs to the technical field of cover beam construction, and in particular relates to an assembly process of a light-duty segmental prefabricated assembled cover beam. Background technique [0002] Prefabricated assembly technology can speed up on-site construction, greatly reduce the impact on the bridge environment and traffic interference, it is easy to ensure the quality of the project, and can reduce the life cycle cost of the bridge. Its technical and economic advantages are increasingly recognized by the bridge industry in various countries. [0003] With the improvement of my country's industrialization level and the rise of labor costs, prefabrication and assembly technology is an inevitable trend in the future development of the construction industry. The prefabrication and assembly technology of concrete bridges is being popularized and applied in a large area in my country because of its advantages such as easy quality assur...

AI Technical Summary

Problems solved by technology

At present, the cover beam generally adopts the overall prefabrication or two-segment prefabrication process. This process is mainly due to the large prefabricated segments and heavy weight, which leads to relatively high road transportation and hoisting costs. The long construction period and the extensive use of formwork, support frames, and various large-scale machinery have hindered its rapid development

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