Construction method and special component for increasing partial strength of precast concrete wall panel

A technology of prefabricated concrete and construction method, which is applied in the direction of building structure, building maintenance, construction, etc. It can solve the problems that are difficult to improve the mechanical characteristics of the wall, and achieve the effect of stable fixing, not easy to break, and enhanced stability

Active Publication Date: 2014-07-02
DONGGUAN CAILI BUILDING MAINTAIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practical experience shows that this method is difficult to improve the mechanical characteristics of the wall

Method used

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  • Construction method and special component for increasing partial strength of precast concrete wall panel
  • Construction method and special component for increasing partial strength of precast concrete wall panel
  • Construction method and special component for increasing partial strength of precast concrete wall panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, see Figure 1 ~ Figure 4 The construction method for improving the local strength of the precast concrete slab wall provided by the present embodiment comprises the following steps:

[0024] (1) prepare special-purpose mesh member 1, the thickness of this special-purpose mesh member 1 is h; Described special-purpose mesh member 1 is to be provided with the three-dimensional mesh structure of a plurality of three-dimensional meshes, comprises a plurality of intersecting each other to form the The side strips 11 of the mesh structure, and each side strip 11 is in a wave-like three-dimensional kink shape; the middle or side is provided with a rib 12 for the nail to pass through and nailed to the groove 2; the side is provided with an upper Folded or downturned hems 13.

[0025] (2) Grinding a groove 2 on the surface of the precast concrete slab wall or the surrounding wallboard, and the groove 2 is recessed into the surface of the concrete wallboard for 1.2 to ...

Embodiment 2

[0032] Example 2, see figure 1 , 2 The construction method for improving the local strength of the precast concrete slab wall provided by the present embodiment comprises the following steps:

[0033] (1) prepare special-purpose mesh member 1, the thickness of this special-purpose mesh member 1 is 1mm; Described special-purpose mesh member 1 is to be provided with the three-dimensional mesh structure of a plurality of three-dimensional meshes, comprises a plurality of intersecting each other to form the Side strips 11 of mesh structure, and each side strip 11 is in a wavy three-dimensional kink shape; the middle or side is provided with a rib 12 for the nail to pass through and nailed to the groove 2; the side is provided with an upper Folded or downturned hems 13.

[0034](2) Grind a groove 2 on the surface of the prefabricated concrete slab wall or the surrounding wallboard, and the groove 2 is recessed into the surface of the concrete wallboard by 5mm. The groove 2 is lo...

Embodiment 3

[0039] Example 3, see figure 1 , 3 , the construction method and special components for improving the local strength of precast concrete slab walls provided by this embodiment are basically the same as those of Embodiments 1 and 2, except that they include the following steps:

[0040] (1) prepare special-purpose net-like member 1, the thickness of this special-purpose net-like member 1 is 10mm; Described special-purpose net-like member 1 is the three-dimensional net-like structure that is provided with a plurality of three-dimensional meshes, comprises a plurality of intersecting each other to form this The side strips 11 of the mesh structure, and each side strip 11 is in a wave-like three-dimensional kink shape; the middle or side is provided with a rib 12 for the nail to pass through and nailed to the groove 2; the side is provided with an upper Folded or downturned hems 13.

[0041] (2) Grinding a groove 2 on the surface of the precast concrete slab wall or the surround...

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Abstract

The invention discloses a construction method for increasing partial strength of a precast concrete wall panel. The construction method is characterized by including: (1) preparing a special meshed component which is provided with a plurality of stereoscopic meshes and with the thickness being h; (2) arranging a groove in a wall panel surface of a part of the precast concrete wall panel or around the precast concrete wall panel by grinding, wherein the recessing depth of the groove is 1.2 to 5 times of h; (3) fixedly nailing the special meshed component on the bottom of the groove via fasteners, and fixedly inlaying by a binding agent so as to form an integrated structure of the fasteners, the binding agent and the special meshed component; (4) leveling the groove by mortar, enabling the meshes of the special meshed component to be fully filled with the mortar, and forming a structure strengthened layer with the fasteners, the binding agent, the mortar and the special meshed component mixed and inlaid after solidification, and thereby the partial strength of the wall panel is increased. The invention further discloses the special meshed component for implementing the construction method.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for improving the local strength of a prefabricated concrete slab wall, a structure formed by the method and a special component for implementing the method. Background technique [0002] At present, cracks generally exist in the grooved parts of the pipe network installed in the prefabricated concrete wall panels, as well as in the embedded boxes and doors. This is mainly because the stress of the wallboard is mainly distributed on the surrounding surface of the wallboard. Once the wallboard is drilled with holes or grooves are dug out, the stress of the wallboard will be redistributed and mainly concentrated in the set holes. Or around the grooving part, forming a weak part of the board wall, which is very prone to cracks. Our research found that the current technology is mainly to paste ordinary glass fiber tape on the surface of the wall c...

Claims

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Application Information

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IPC IPC(8): E04G23/02
Inventor 何玉成
Owner DONGGUAN CAILI BUILDING MAINTAIN TECH
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