Prefabricated concrete shear wall fabricated connecting node manufacturing and installing method

Abstract

The invention belongs to the field of fabricated concrete structures, and relates to a prefabricated concrete shear wall fabricated connecting node manufacturing and installing method. The prefabricated concrete shear wall fabricated connecting node manufacturing and installing method comprises the following steps that a connecting steel plate is manufactured in a factory; a shear key is welded tothe pre-embedded section of the connecting steel plate; a prefabricated concrete shear wall bottom formwork is laid; prefabricated concrete shear wall reinforcing ribs are bound, and a side face formwork is installed; the two splicing ends of the prefabricated concrete shear wall are fixedly provided with an external extending connecting steel plate; concrete is poured; concrete curing is performed, and the formwork is removed; after acceptance inspection is completed, the steel plate is conveyed to a construction site; on the construction site, the prefabricated concrete shear wall is suspended to the preset position and aligned to an external extending connecting steel plate bolt hole; the connecting steel plate is fixed through a high-strength bolt; concrete is poured to the outer sideof the connecting steel plate. The concrete shear wall is prefabricated in the factory, and the component quality is controllable; upper and lower prefabricated concrete shear wall pieces are connected through the high-strength bolt, the structure is simple, and force transmission is reliable; connecting quality is convenient to inspect, and the finished product quality is controllable; construction and installation are rapid, the efficiency is high, and the requirement for prefabricated buildings is met.

Description

technical field [0001] The invention belongs to the technical field of prefabricated concrete structures, and relates to methods for making and installing prefabricated concrete shear wall prefabricated connection nodes. Background technique [0002] Prefabricated building is a construction method in which prefabricated beams, slabs, columns, walls and other building components are produced in the factory, and after maintenance and acceptance, they are transported to the site for installation and construction. The prefabricated building has the characteristics of standardized design of building components, factory processing, and prefabricated construction, which is conducive to reducing environmental pollution caused by construction, shortening the construction period, and saving manpower and material resources. [0003] In building structures, shear walls mainly bear horizontal and vertical loads caused by wind loads or earthquakes. In the prefabricated concrete structure...

AI Technical Summary

Problems solved by technology

However, in practical application, there are many shortcomings in the grouting sleeve connection technology. First, the precast concrete shear wall has a large amount of reinforcement, and it is difficult to connect the sleeve and the steel bar during construction; It is difficult to guarantee the construction quality due to slurry and void phenomenon; the third is that the sleeve process is complicated and the cost is high, which increases the overall cost of prefabricated concrete buildings

Patent CN107460969A discloses a new type of assembly method for prefabricated concrete shear walls. This connection method eliminates the grouting sleeve, and the construction quality can be guaranteed. However, it is still necessary to bind steel bars and pour concrete on site during construction, and the site workload is large; patent CN207079756U discloses A dry-type connection method for concrete shear walls and walls. This method adopts the dry operation method without grouting on site, but there are still a lot of docking problems between the steel bars and sleeves during the construction process, and the construction is difficult.

Images