Fabricated composite wallboard T-shaped constructional column and ecological inner wall self-tapping screw block connecting structure and construction method of fabricated composite wallboard T-shaped constructional column and ecological inner wall self-tapping screw block connecting structure

Abstract

The invention discloses an assembly type composite wallboard T-shaped constructional column and ecological inner wall self-tapping screw block connecting structure and a construction method. The structure and the construction method are used for assembling same-layer composite wallboards and ecological wallboards, bearing a large earthquake effect, of a multi-layer building. The self-tapping screw block is formed by groove-shaped force transmission steel plates welded to composite wallboard T-shaped constructional columns and ecological inner wall frame column steel bars, self-tapping screws freely penetrate through self-tapping screw holes of connecting steel plates to be connected with the force transmission steel plates in a self-tapping mode, and the connecting steel plates and the force transmission steel plates have extrusion force to generate friction force between the steel plates. Meanwhile, the occlusal force of the steel plate and the self-tapping screws can be strengthened; the construction joints of the wallboards and the constructional columns are filled with cement-based grouting materials to form tongue-and-groove engagement, and the shear resistance is achieved; the self-tapping screw block structure solves the connection problem of the frame column and the T-shaped constructional column, and the pouring seam has the advantages of being good in waterproof and sound insulation performance. The method has the technical advantages that continuous force transmission of the pouring seams and concentrated force transmission of the self-tapping screw blocks work cooperatively to achieve efficient stress, and the wall separation performance is good.

Description

technical field [0001] The invention relates to a connection structure and method of a T-shaped structural column of an assembled composite wall panel and an ecological inner wall self-tapping nail cluster, and belongs to the technical field of assembled concrete building structure engineering. Background technique [0002] At present, the construction technology of low-storey ultra-low energy consumption houses in villages and towns, especially the construction technology of prefabricated ultra-low energy consumption low-storey houses is very lacking. [0003] The technical bottlenecks of the existing technology are: [0004] (1) In the traditional prefabricated shear wall structure, integral joints are generally used between adjacent shear walls in the floor, and the constrained edge members and structural edge members at the junction of longitudinal and horizontal walls are all cast-in-place construction. The method has a large amount of wet work, low assembly rate, slow...

AI Technical Summary

Problems solved by technology

[0004] (1) In the traditional prefabricated shear wall structure, integral joints are generally used between adjacent shear walls in the floor, and the constrained edge members and structural edge members at the junction of longitudinal and horizontal walls are all cast-in-place construction. The method has a large amount of wet work, low assembly rate, slow construction speed, inflexible building wall layout, and environmental pollution problems such as large construction waste discharge and loud noise during the construction process

(2) The traditional shear wall steel plate bolt connection technology is not suitable for the assembly of single-row reinforced mesh concrete thin-slab sandwich polystyrene board composite wall panels on the inner and outer leaves and the ecological inner wall with reinforced concrete sash, because the middle of the inner and outer leaf wall panels The polystyrene board is sandwiched and the thermal bridge problem is considered. The polystyrene board does not allow holes to be drilled through bolts

At the same time, if the composite exterior wall panels and ecological interior wall panels are assembled and connected by bolts connecting steel plates or angle steels, the sound insulation and waterproof capabilities of the walls will be reduced, and the construction is difficult and requires high precision.

In this way, it is difficult to assemble and connect adjacent composite exterior wall panels and ecological interior walls on the same layer by using traditional steel plate bolt connection technology; The connection between the keels is connected by self-tapping nails. The self-tapping nails penetrate the two connected light steel keels one after another. The assembly of composite exterior wall panels and ecological interior wall panels belongs to the assembly of structural columns of composite wall panels and frame columns of ecological interior walls. The technology of directly connecting light steel keels with nails is significantly different from the assembly and force transmission requirements of composite wall panel structural columns and ecological inner wall frame columns; The expansion force of concrete is relatively large, and it is necessary to add temporary construction supports to position the formwork, which is expensive and less flexible, and is not suitable for the construction of ecological interior walls

(5) 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 performance and waterproof performance at the assembly joints

Images