Assembly type Z-shaped column and ecological inner wall self-tapping screw block connecting structure and construction method

Abstract

The invention discloses a fabricated Z-shaped column and ecological inner wall self-tapping screw block connecting structure and a construction method, and relates to the technical field of fabricated buildings. The self-tapping screw block is formed in the mode that force transmission steel plates welded to Z-shaped constructional columns and ecological inner wall frame column steel bars are connected with the force transmission steel plates in a self-tapping mode by adopting self-tapping screws to freely penetrate through self-tapping screw holes in the vertical flanges of T-shaped connecting steel plates, and the connecting steel plates and the force transmission steel plates have friction force generated by extrusion force between the steel plates. Meanwhile, the occlusal force of the steel plate and the self-tapping screws can be strengthened; a horizontal web of the T-shaped connecting plate is embedded into the Z-shaped column filled with the structural adhesive and forms a shear key with a horizontal groove of the wallboard frame column; and the construction joints of the wallboards and the constructional columns are filled with cement-based grouting materials. The problem of connection of the inner wall frame column and the cross-shaped constructional column is solved through self-tapping screw block connection, the waterproof and sound insulation performance of a construction joint is good, and the self-tapping screw block combined connection structure has the technical advantages that the stress is efficient, and the wet operation in the construction process is little.

Description

technical field [0001] The invention relates to a connection structure and method of a prefabricated Z-shaped column and an ecological inner wall self-tapping nail aggregate block, belonging to the technical field of prefabricated buildings. Background technique [0002] At present, the construction technology of low-storey and ultra-low energy consumption houses in villages and towns, especially the construction technology of prefabricated ultra-low energy consumption and low-storey houses, is very lacking. The technical bottlenecks existing in the existing technology are: [0003] (1) In the traditional prefabricated shear wall structure, the adjacent prefabricated shear walls in the floor are generally connected by integral joints, and the constraining edge members and structural edge members at the connection of the transverse wall or longitudinal wall are all cast-in-place construction. , the wet work volume is large, the assembly rate is low, the construction speed is...

AI Technical Summary

Problems solved by technology

[0003] (1) In the traditional prefabricated shear wall structure, integral joints are generally used between adjacent prefabricated shear walls in the floor, and the constrained edge members and structural edge members at the junction of transverse walls or longitudinal walls are all cast-in-place construction , large amount of wet work, low assembly rate, slow construction speed, and environmental pollution problems such as large discharge of construction waste and high noise during the construction process

(2) The traditional prefabricated shear wall structure is limited by the shape and size of the wall panels produced in a standardized manner, and the flexibility of space layout is poor, and it is difficult to meet the requirements of residential and office buildings with complex functional divisions.

(3) The traditional shear wall steel plate bolt connection technology is not suitable for the assembly of ecological interior walls with reinforced concrete frames, because if the adjacent horizontal or vertical walls are assembled by connecting steel plates or angle steel with cross bolts, the wall will be reduced. The sound insulation and waterproof ability of the body; if the bolts are used to connect through the screw holes on the frame column of the inner wall, the construction is difficult, the precision is high, and holes need to be opened in the ecological board, which will affect the waterproof and sound insulation of the wall board, and increase the Decoration difficulty

In this way, it is difficult to connect the adjacent ecological inner walls of the same layer with traditional bolt connection technology; (4) The price of self-tapping screws is much lower than that of bolts, and the connection between thin-walled light steel keels of the thin-walled light steel keel structure adopts Self-tapping nail connection, the self-tapping nail penetrates the connected two light steel keels successively, and the force transmission between the light steel keel is realized through the bite with the self-tapping nail, without extrusion friction; however, the prefabricated ten-shaped column and the ecological The assembly of the interior wall belongs to the assembly of reinforced concrete wall panels and structural columns. The connection interface between the two mainly bears the shear force, and at the same time requires friction and occlusal force. It is obvious that the current technology of directly connecting light steel keels with self-tapping screws and composite wall panels The assembly and force transmission requirements of the inner and outer leaf concrete thin wall panels are significantly different; (5) For the traditional shear wall cast-in-place belt assembly, due to the large amount of concrete poured in place and the large expansion force of the concrete, it is necessary to add temporary construction supports to Formwork positioning, high cost and poor flexibility, not suitable for the construction of ecological interior walls

(6) Prefabricated internal infill wall panels of traditional prefabricated shear wall structures need to reserve assembly joints with adjacent wall panels or structural columns, and there are problems such as poor sound insulation and waterproof performance at the assembly joints

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