Partially-overlapped laminated plate with holes

Abstract

The invention discloses a partially-overlapped laminated plate with holes. The partially-overlapped laminated plate comprises a prefabricated plate, negative ribs and cast-in-place concrete. A middle completely prefabricated part is arranged at the middle portion of the prefabricated plate. A plurality of hollow holes vertically penetrating the middle completely prefabricated part are formed in the middle completely prefabricated part. The hollow holes are cylindrical, and parts needing to be overlapped are arranged on the periphery of the prefabricated plate and located on the outer side of the middle completely prefabricated part, and the overlapped parts are subjected to face roughening treatment. The left side and the right side or one side of a reinforced concrete overlapped beam is provided with the prefabricated plate. The prefabricated plate, the negative ribs and the reinforced concrete overlapped beam are fixedly connected through the cast-in-place concrete. The middle part of the prefabricated plate is completely prefabricated, the hollow holes are arranged, the structure stress is good, and the weight is small. The reserved hollow holes can conveniently serve as channels for a cable, a wire and a water pipe; the workload of the prefabricated part is increased, the construction work of the field casting-in-place part is reduced, and industrialization and construction quality control are facilitated.

Description

technical field [0001] The invention relates to the application field of construction engineering, in particular to a partially laminated laminated plate with holes. Background technique [0002] In the field of construction engineering, the slab is the most basic structural form and structural unit. The commonly used structural forms include reinforced concrete cast-in-place and prefabricated slabs. The reinforced concrete cast-in-place slab is currently the most used of these floor slab structures. It has the advantages of flexible design and good structural integrity. The disadvantage is that it needs on-site formwork and support, high construction cost, long construction period, and difficult control of construction quality. The prefabricated slab structure has been widely used in my country. It has the outstanding advantages of building the floor in the factory, fast construction speed, no need for formwork and support on site, and low construction cost. However, due to...

AI Technical Summary

Problems solved by technology

However, these structural forms also have some shortcomings. Because the prefabricated floor slabs of a certain thickness need to support the construction load and the weight of the cast-in-place concrete, the prefabricated part should not be too thin, and the design specification stipulates that the minimum is 60mm. The prefabricated part is well combined, and the thickness design specification of the cast-in-place part is not less than 60mm

Some cast-in-place slab bottom reinforcements still have insufficient reinforcement stress advance

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