A slab-column structure assembly system and its floor prefabricated components

Abstract

The invention discloses a plate-column structure fabricated system, comprising columns, floor prefabricated members, prefabricated column caps or carrier plates, and joints. Each floor prefabricated member is of integrated structure composed of a portion with a column cap connection plate strip and a portion without a column cap connection plate strip, the portion with a column cap connection plate strip and the portion without a column cap connection plate strip are different in at least one of form and thickness, the prefabricated column caps or carrier plates sleeve the top ends of the columns, the ends of the portions with a column cap connection plate strip in the floor prefabricated members in the length direction are lapped on the prefabricated column caps or carrier plates or abutted to the edges of the prefabricated column caps or carrier plates, and the edges of the floor prefabricated members are abutted or lapped to one another. The invention also discloses a floor prefabricated member. The plate-column structure fabricated system and the floor prefabricated member thereof may require fewer supports and forms to be mounted.

Description

technical field [0001] The invention relates to the field of concrete structures and prefabricated building structures, in particular to a slab-column structure assembly system and its floor prefabricated components and nodes. Background technique [0002] Since prefabricated buildings conform to the production method of environmental protection and energy saving, the country has proposed a development goal of making prefabricated buildings account for 30% of new buildings in about 10 years; The floor height is very economical in underground buildings and as multi-storey parking. The slab-column structure can be cast on site or prefabricated and will have a large market space. [0003] Dismantling the building structure into components that can be produced in factories, transported, and installed easily, and that are safe, reliable, and economically reasonable is the key first step in the industrialization of construction—the prefabricated building. [0004] At present, the...

AI Technical Summary

Problems solved by technology

In this form, the compressive stress of the friction force comes from the post-tensioned prestressed steel strands on site. Because of the special requirements of the connection, the construction process of the prestressed steel strands is cumbersome and difficult. The technical requirements are very high; in addition, the prestressing purpose of the joint tension is for the connection, and additional stress is generated on the original assembled components, which not only increases the design difficulty but also affects the project cost; and when using the "IMS" system , prestressed friction joints not only need to meet the relevant regulations of reinforced concrete structures, but also meet the requirements of "Technical Regulations for Integral Prestressed Prefabricated Slab-Column Structures CECS52: 2110", which is only an association standard regulation, not a national standard. From On the other hand, it indirectly shows that there are some problems in the connection method of the "IMS" system, or at least it shows that it is not a perfect structural form, and it is an implementation technology that has not passed national approval; in application, it is difficult to construct on site—that is, it is not suitable for industrial construction and the cost is high. The production and implementation of standards that are not suitable for the market economy have been hindered, resulting in not many applications in the past 20 or 30 years.

[0006] (2) At present, the division and connection nodes of the prefabricated floor slabs have the methods in the published patents ZL201621391998.3 and ZL2016111750922. Although it solves the principle of dividing and designing the large assembly slab-column structure, it is difficult for prefabricated components and connection nodes and the assembly site In terms of construction, it is a conventional practice, with shortcomings, requiring a lot of support and installing formwork

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