Assembly type concrete module structure vertical seam connecting joint based on cover plate bolts

Abstract

The invention provides an assembly type concrete module structure vertical seam connecting joint based on cover plate bolts. Through holes are prefabricated in the tops of corners of a left module and a right module in a factory, a left pre-embedded sleeve and a right pre-embedded sleeve are arranged in the through holes, the left module and the right module are arranged side by side, and a steel cover plate with holes formed in advance stretches across the left module and the right module; a left embedded sleeve and a right embedded sleeve are arranged in the steel cover plate and cover vertical seams of the left module and the right module, a left high-strength bolt and a right high-strength bolt penetrate through holes of the steel cover plate and are perpendicularly screwed into the left embedded sleeve and the right embedded sleeve, and the left embedded sleeve and the right embedded sleeve are both threaded sleeves. The sleeve axes of the left pre-embedded sleeve and the right pre-embedded sleeve are perpendicular, and the exposed end faces of the left pre-embedded sleeve and the right pre-embedded sleeve are flush with the upper surfaces of the left module and the right module, so that the fabricated concrete module structure vertical seam connecting joint based on the cover plate bolts is a novel connecting technology which is high in reliability, rapid in installation and detachable; and a modular building is promoted to be upgraded to a green sustainable direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and in particular relates to a vertical seam connection node of a prefabricated concrete module structure based on cover plate bolts. Background Art

[0002] As a key development direction in building industrialization, prefabricated modular construction has garnered significant attention in recent years due to its advantages in efficient construction and industrialized production. Its core technology involves breaking down buildings into functionally independent modular units, enabling rapid construction through factory prefabrication and on-site mechanized assembly. Compared to traditional prefabricated buildings, modular systems significantly shorten construction timelines and reduce labor reliance by reducing the number of components and simplifying joint connections, making them particularly suitable for tight deadlines or labor shortages. Currently, mainstream modular construction can be categorized by material: steel and concrete. Steel modules, due to their high strength, lightweight, and easy connection, are widely used in temporary structures and low-rise offices. However, they suffer from limitations such as high steel consumption, high cost, and insufficient fire and corrosion resistance, making them difficult to meet the long-term needs of residential housing. Concrete modules, on the other hand, are a preferred option for high-quality residential construction due to their low material cost and excellent fire and sound insulation. However, their connection technology still relies on cast-in-place processes, which limits construction efficiency and makes module disassembly difficult, hindering the potential of circular construction. The current technical bottleneck is concentrated in the connection method between modules. Traditional concrete modules use a wet connection process, which requires on-site pouring of concrete to complete node fixation. This not only prolongs the construction period, but also makes it difficult to completely disassemble and reuse the modules, deviating from the core concept of "efficient and reversible" of prefabricated buildings. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a vertical joint connection for prefabricated concrete modular structures using cover bolts. Therefore, developing a new connection technology that combines high reliability, rapid installation, and removable features is crucial for promoting the green and sustainable development of modular buildings.

[0004] A prefabricated concrete module structure vertical seam connection node based on cover plate bolts, wherein through holes are prefabricated in the factory at the top of the corners of the left module and the right module, and a left embedded sleeve and a right embedded sleeve are arranged in the through holes. The left module and the right module are placed side by side, and a pre-opened steel cover plate is placed across the left module and the right module and covers the vertical seam of the left module and the right module, and the left high-strength bolts and the right high-strength bolts are passed through the holes of the steel cover plate and vertically screwed into the left embedded sleeve and the right embedded sleeve.

[0005] Furthermore, the left embedded sleeve and the right embedded sleeve are both threaded sleeves.

[0006] Furthermore, the sleeve axes of the left embedded sleeve and the right embedded sleeve are perpendicular, and the exposed end surfaces are flush with the upper surfaces of the left module and the right module.

[0007] Furthermore, the left module and the right module are assembled modules.

[0008] Furthermore, the thickness of the steel cover plate is 6 mm.

[0009] Furthermore, the left high-strength bolt and the right high-strength bolt are both bolts prefabricated in a factory.

[0010] Furthermore, the lengths of the left high-strength bolt and the right high-strength bolt are greater than the thickness of the steel cover plate.

[0011] Due to the adoption of the above solution, the beneficial effects of the present invention are: The invention develops a new connection technology for the vertical seam connection node of the assembled concrete module structure based on cover plate bolts, which has the characteristics of high reliability, rapid installation and detachability, and becomes a driving force for upgrading modular buildings towards green and sustainable directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of the vertical seam connection node of the prefabricated concrete module structure according to an embodiment of the present invention.

[0013] Figure 2 It is an enlarged view of the left embedded sleeve and the right embedded sleeve in an embodiment of the present invention.

[0014] Figure 3 Schematic diagram of the installation process of the vertical joint connection node of the prefabricated concrete module structure in an embodiment of the present invention.

[0015] Figure 4 1. This is a diagram of the various components of the vertical joint connection node of the prefabricated concrete module structure in an embodiment of the present invention.

[0016] Numbering description: 1-left module, 2-left embedded sleeve, 3-right module, 4-right embedded sleeve, 5-left high-strength bolt, 6-right high-strength bolt, 7-steel cover, 8-vertical seam. DETAILED DESCRIPTION

[0017] To further illustrate the technical means and effects of the present invention, the technical solutions of the present invention are further described below with reference to the accompanying drawings and specific implementation methods, but the present invention is not limited to the scope of the embodiments.

[0018] Example: Prefabricated buildings, due to their advantages such as easy quality assurance and rapid construction, are becoming a key area of ​​transformation for my country's construction industry. Among existing prefabricated buildings, modular prefabricated buildings (also known as "box buildings") are the most assembled and prefabricated type, representing a key form of building industrialization.

[0019] like Figures 1 to 4As shown, the corner tops of the left module 1 and the right module 3 of this embodiment are prefabricated with through holes in the factory, and embedded threaded sleeves are arranged in the through holes, namely the left embedded sleeve 2 and the right embedded sleeve 4, and the axis of the threaded sleeve is vertical and the exposed end face is flush with the floor surface (the floor surface is the upper surface of the left module 1 and the right module 3). Therefore, the left module 1 and the right module 3 are collectively referred to as assembled modules. After the left module 1 and the right module 3 are hoisted to the predetermined position, they are placed side by side, and the pre-opened steel cover plate 7 is placed across the left and right modules, and covers the vertical seams 8 of the adjacent left module 1 and right module 3 modules, and is screwed in with left high-strength bolts 5 and right high-strength bolts 6, passes through the holes of the steel cover plate 7, and is vertically screwed into the left embedded sleeve 2 and the right embedded sleeve 4.

[0020] And the thickness of the steel cover is 6mm.

[0021] The left high-strength bolts and the right high-strength bolts are both prefabricated in the factory.

[0022] The length of the left high-strength bolt and the right high-strength bolt is greater than the thickness of the steel cover plate.

[0023] The above description of the embodiments is intended to facilitate understanding and use of the present invention by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without resorting to creative effort. Therefore, the present invention is not limited to the above-described embodiments. Any improvements or modifications made by those skilled in the art based on the principles of the present invention that do not depart from the scope of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A vertical joint connection node of an assembled concrete module structure based on cover bolts, characterized in that: The corner tops of the left module (1) and the right module (3) are prefabricated with through holes in the factory, and a left embedded sleeve (2) and a right embedded sleeve (4) are set in the through holes. The left module (1) and the right module (3) are placed side by side, and a pre-opened steel cover plate (7) is placed across the left module (1) and the right module (3) and covers the vertical seam (9) of the left module (1) and the right module (3). The left high-strength bolt (5) and the right high-strength bolt (6) are passed through the holes of the steel cover plate (7) and vertically screwed into the left embedded sleeve (2) and the right embedded sleeve (4).

2. The vertical joint connection node of the assembled concrete module structure based on cover bolts according to claim 1 is characterized in that: The left embedded sleeve (2) and the right embedded sleeve (4) are both threaded sleeves.

3. The vertical joint connection node of the assembled concrete module structure based on cover plate bolts according to claim 1 is characterized in that: The sleeve axes of the left embedded sleeve (2) and the right embedded sleeve (4) are vertical, and the exposed end surfaces are flush with the upper surfaces of the left module (1) and the right module (3).

4. The vertical joint connection node of the assembled concrete module structure based on cover bolts according to claim 1 is characterized in that: The left module (1) and the right module (3) are assembled modules.

5. The vertical joint connection node of the assembled concrete module structure based on cover bolts according to claim 1 is characterized in that: The thickness of the steel cover plate (7) is 6 mm.

6. The vertical joint connection node of the assembled concrete module structure based on cover bolts according to claim 1 is characterized in that: The left high-strength bolt (5) and the right high-strength bolt (6) are both bolts prefabricated in a factory.

7. The vertical joint connection node of the assembled concrete module structure based on cover plate bolts according to claim 1 is characterized in that: The lengths of the left high-strength bolt (5) and the right high-strength bolt (6) are greater than the thickness of the steel cover plate (7).

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