Standard splicing method of two-way concrete prefabricated bottom plate

Abstract

The invention relates to a standard splicing method of a two-way concrete prefabricated bottom plate. The prefabricated bottom plate comprises three types of a side plate, a middle plate and a whole plate. The side plate is a prefabricated bottom plate with one side edge in the width direction close to a floor slab support. The width specifications of the side plate are 1,200, 1,500, 1,700, 1,800,2,000, 2,400, 2,600 and 2,700. The middle plate is a prefabricated bottom plate with the two side edges connected with the side plate. The width specifications of the middle plate are 1,500, 1,800 and 2,000. The whole plate is a prefabricated bottom plate with the maximum size of the floor slab width smaller than or equal to 3,000. The splicing method includes the following steps that side platesof different specifications are spliced or multiple side plates and the middle plate are spliced as for floor slabs with the widths larger than 3,000 mm, and post-cast strip connection is adopted during bottom plate splicing; and the whole plate is directly used as for floor slabs with the widths smaller than or equal to 3,000 mm. The problem about standard splicing of the composite floor slab prefabricated bottom plate can be effectively solved.

Description

【Technical field】 [0001] The invention relates to a splicing method for building components, in particular to a standardized splicing method for two-way concrete prefabricated bottom plates, and belongs to the technical field of building structures. 【Background technique】 [0002] Prefabricated buildings have become the main way of building construction. For this reason, the Ministry of Housing and Urban-Rural Development and some provinces and cities have carried out standardization work on prefabricated buildings, and many standardization results have also been produced. Taking the prefabricated building floor as an example, the Ministry of Housing and Urban-Rural Development issued the Atlas of "Trussed Reinforced Concrete Laminated Slab (60mm Thick Bottom Plate)" (15G366-1). The existing standard atlases of prefabricated prefabricated slabs in various places are based on modular design, that is, 300mm is used as the design module of the building axis, so that the axis di...

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Problems solved by technology

[0003] However, in actual design, due to various practical reasons, there will be multiple modules or even no modules in the design of the plane axis dimensions of many buildings, making the existing atlas unable to be effectively applied

In addition, in order to meet the development needs of variable living rooms in existing residential buildings, the floor slabs have begun to develop towards large bays and large depths. The width of the existing atlas panels is too small, which will also lead to more seams and more types of panels in the prefabricated floor The disadvantages also make the existing atlas basically not used

Therefore, in the design of prefabricated buildings, designers not only need to disassemble the design, but also need to draw the reinforcement and size of each prefabricated slab bottom. The design workload is huge and the design efficiency is very low.

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