Integrated design and construction method of post-cast ring beam formwork and slab support for prefabricated shear walls

Abstract

The invention belongs to the field of prefabricated building construction, and in particular relates to an integrated design and construction method of prefabricated shear wall post-cast ring beam formwork and slab support. The steps are: 1. Determine the formwork system calculation model; 2. Formwork system bearing Force checking; 3. Determine the calculation model of the prefabricated slab support system; 4. Check the bearing capacity of the precast slab support system; 5. Determine the material of the formwork system components; 6. Make the back corrugated; 7. Make the formwork; 9. Making the inner support of the formwork; 10. Installing the formwork; 11. Hoisting the prefabricated panels; 12. Pouring concrete. The invention solves the key technical problems such as difficulty in fixing the post-cast ring beam formwork, grout leakage and displacement at the bottom of the slab, realizes the integration of the formwork and the prefabricated slab support, saves the support of the prefabricated slab, and makes the post-cast ring beam meet the requirements of fair-faced concrete. High degree of standardization, factory production, prefabricated installation, repeated recycling, in line with national environmental protection and energy saving requirements.

Description

technical field [0001] The invention provides an integrated design and construction method of a prefabricated shear wall post-cast ring beam formwork and a plate support, which belongs to the technical field of concrete prefabricated buildings, and is suitable for post-cast ring beams of interior and exterior walls of prefabricated shear wall structures. Integrated design and construction of formwork and prefabricated slab support. Background technique [0002] In recent years, with the continuous increase in the promotion of prefabricated buildings in my country, prefabricated buildings have developed rapidly. In order to make the joint connection of horizontal members meet the seismic requirements, it is necessary to design post-cast ring beams on the top of the prefabricated shear walls. However, there is still a lack of scientific design and construction methods for the post-cast ring beam formwork. Usually, the formwork is fixed with tension bolts in the vertical middl...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide an integrated design and construction method of post-cast ring beam formwork and slab support for prefabricated shear walls. Save the temporary support of the prefabricated slab; after calculating the bearing capacity of the formwork under the horizontal and vertical construction loads, the stress members of the formwork system are determined, which not only solves the problem that the post-cast ring beam formwork cannot bear the floor construction load and formwork slippage and expansion Key technical problems such as exposed ribs, etc., and make the post-cast ring beam achieve the effect of fair-faced concrete, which greatly saves the comprehensive cost of grinding and leveling the post-cast ring beam in traditional technology; through fine-tuning screw adjustment, the formwork and precast slabs can be tightly fitted without leakage of grout. The accuracy of the bottom level of the prefabricated slab is controlled in the range of ±0.5mm~±1.0mm, which meets the flatness requirements of fair-faced concrete and saves a lot of leveling putty on the bottom of the slab. , stable and reliable quality, in line with energy saving and green construction requirements, has broad application prospects and significant social and economic benefits

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