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Cavity wall

A cavity and cavity wall technology, which is applied to walls, building components, buildings, etc., can solve problems affecting structural safety, the self-heavyness of solid components, and large labor requirements, so as to improve structural stability, strengthen connection strength, and ensure safety. high performance effect

Inactive Publication Date: 2021-08-10
SANY CONSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the process of practice, it was found that there are many problems in the solid prefabricated components: for example, the production automation of the components is low due to the reinforcement on the side of the prefabricated components, and the quality control is difficult due to the connection of the on-site reinforcement; Difficult and inconvenient transportation; the formwork and steel bars caused by the connection of post-cast belts have a large amount of work, and the demand for labor is large, etc.
Therefore, if the connection strength between the two precast concrete leaves, the compactness of the cast-in-place concrete poured in the cavity, and the bonding strength between the poured concrete and the precast concrete leaves cannot be guaranteed, the scope of use of the structure will be limited, affect the safety of the structure

Method used

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Experimental program
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Effect test

Embodiment 1

[0059] like Figure 1 to Figure 3 As shown, the cavity wall in this embodiment includes a first prefabricated panel 10 , a second prefabricated panel 20 and a connecting structure 30 . Wherein, the first prefabricated panel 10 and the second prefabricated panel 20 are arranged opposite to each other. The connection structure 30 is connected between the first prefabricated panel 10 and the second prefabricated panel 20 , so that a cavity 40 is formed between the first prefabricated panel 10 and the second prefabricated panel 20 . Further, the inner surface of the first precast slab 10 and the inner surface of the second precast slab 20 have a rough structure, and the rough structure includes a plurality of parallel grooves 50 extending in the transverse direction.

[0060] Using the technical solution of this embodiment, a plurality of parallel grooves 50 extending in the transverse direction are provided on the inner surface of the first prefabricated slab 10 and / or the secon...

Embodiment 2

[0090] like Figure 7 As shown, the difference between the cavity wall of the second embodiment and the first embodiment is that the connecting steel bar 33 is a steel bar truss. The steel truss has a triangular structure, which makes the support strength higher. At the same time, for the steel truss, its structure is simple, it is convenient to process, and it also has the characteristics of easy forming cavity wall.

Embodiment 3

[0092] like Figure 8 As shown, the difference between the cavity wall of the third embodiment and the first and second embodiments above is that the connecting steel bar 33 is a stirrup. Specifically, the stirrups are connected to the first reinforcement mesh sheet 31 and the second reinforcement mesh sheet 32 ​​in a winding manner, and the connection strength thereof is higher than that of the solutions of the first and second embodiments.

[0093] Further, since the cavity wall in the third embodiment has higher structural strength, the cavity wall in the third embodiment can be used alone, or used in combination with the cavity walls in the first and second embodiments. When the cavity wall in embodiment three is used in combination with the cavity wall in embodiment one and embodiment two, the cavity wall in embodiment three can be used as the edge part of the building, such as the edge of beams and openings, and then Adds structural strength to the edges of buildings. ...

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Abstract

The invention provides a cavity wall, a functional wall structure, a wall structure with a window, a wall structure with a bay window and a connecting joint structure of a building. The cavity wall comprises a first prefabricated plate, a second prefabricated plate, and a connecting structure. The first prefabricated plate and the second prefabricated plate are oppositely arranged. The connecting structure is connected between the first prefabricated plate and the second prefabricated plate, so that a cavity is formed between the first prefabricated plate and the second prefabricated plate; the inner side face of the first prefabricated plate and / or the inner side face of the second prefabricated plate are / is provided with a rough structure, and the rough structure comprises a plurality of parallel grooves extending in the transverse direction. According to the cavity wall, the contact area between prefabricated concrete and cast-in-place concrete can be increased, so that the connecting strength of the prefabricated concrete and the cast-in-place concrete is enhanced, meanwhile, the transversely-formed grooves can play a proper role in limiting coarse aggregate in the cast-in-place concrete, the coarse aggregate is prevented from sinking and concentrating under the conditions of gravity and vibration, cast-in-place concrete is uniform in density, and structural stability is improved.

Description

technical field [0001] The invention relates to the technical field of concrete prefabricated components, in particular to a cavity wall, a functional wall structure, a wall structure with a window, a wall structure with a bay window and a connection node structure of a building. Background technique [0002] In recent years, my country's prefabricated buildings have developed rapidly, and prefabricated shear walls are a commonly used building structure. At present, most of the prefabricated shear walls are based on solid prefabricated structures. For example, in the technical solutions disclosed by the Chinese patents whose announcement numbers are CN104032856B, CN110029749A and CN203097017U, the prefabricated shear walls include two opposite solid prefabricated wall panels, two The solid prefabricated wall panels are connected by steel bars and cast-in-place concrete to form a shear wall structure. [0003] However, in the process of practice, it was found that there are ...

Claims

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Application Information

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IPC IPC(8): E04C2/34E04C2/30E04B2/86
CPCE04C2/34E04C2/30E04B2/8617
Inventor 张猛马钊
Owner SANY CONSTR TECH CO LTD