Anti-seismic floor connecting assembly for modular building

Abstract

The utility model discloses an anti-seismic floor connecting assembly for a modular building. The anti-seismic floor connecting assembly comprises a rigid framework formed by splicing cross-shaped hollow steel pipes and laid prefabricated parts. The upper-layer prefabricated part is horizontally placed above the framework, the lower-layer prefabricated part is hung below the framework through fixing nails, and a hollow cavity filled with foaming materials is formed between the upper-layer prefabricated part and the lower-layer prefabricated part. The prefabricated parts are connected in a combined mode through cooperation of the buckles and the clamping grooves and combination of the steel connecting pieces and the buckling pieces. The cross-shaped hollow steel pipe can be connected in a welding mode, a riveting mode and the like, and the foaming material can be polyurethane or rock wool or the like. According to the assembly, the structural stability is improved in a multi-connection mode, the hollow cavities are combined with foaming materials to enhance the sound insulation, heat insulation and anti-seismic performance, the gravity center is reduced through the weight distribution design, the anti-overturning capacity is improved, the assembly is suitable for various building scenes, and the requirements for rapid installation and environment protection of prefabricated assembly type buildings are met.

Description

Technical Field

[0001] This article relates to seismic-resistant floor connection components for modular buildings. Background Technology

[0002] In the development of the construction industry, traditional cast-in-place buildings have significant drawbacks. Their construction process relies heavily on on-site work, resulting in a lengthy construction cycle. From foundation construction to the completion of the main structure, it often takes several months or even longer. This not only increases time costs but also makes the construction process highly susceptible to natural factors such as weather, easily leading to delays. Furthermore, the structural strength of traditional cast-in-place buildings largely depends on the quality control of on-site construction, such as concrete mix design, pouring techniques, and curing conditions. Problems in any of these areas can result in substandard structural strength, posing safety hazards.

[0003] With the continuous advancement of industrialized construction and green environmental protection concepts, prefabricated modular buildings are gradually becoming a development trend in the construction industry. Prefabricated modular buildings significantly shorten on-site construction time and improve construction efficiency by prefabricating building components in a factory and then transporting them to the site for installation, while also allowing for better control of component quality.

[0004] However, the connection design between prefabricated components has become one of the key issues facing prefabricated assembled buildings. In engineering applications, for prefabricated slabs, especially lightweight panels such as aerated concrete panels, the connection between them and other prefabricated slabs or with the main structure and surrounding components often faces significant challenges when using traditional pre-embedded methods. Traditional pre-embedded methods require precise placement of embedded parts during component prefabrication, which places extremely high demands on the prefabrication process. Once a deviation occurs, it is difficult to adjust during on-site installation, easily leading to weak connections and affecting the structural stability and safety of the entire building. Therefore, there is an urgent need for a simple, flexible, safe, and reliable connection method to solve this problem. Utility Model Content

[0005] This utility model provides a seismic-resistant floor connection component for modular buildings, addressing the problems of difficult connection of prefabricated components, insufficient structural stability, and inadequate seismic performance in prefabricated assembled buildings. It provides a floor connection component that is simple and flexible to connect, has high structural strength, and good seismic performance. The specific technical solution is as follows:

[0006] An earthquake-resistant floor connection component for modular buildings includes a rigid frame made up of several cross-shaped hollow steel pipes, on which several prefabricated components are laid.

[0007] The cross-shaped hollow steel pipe has a cross-shaped cross-section. The upper prefabricated components are placed flat on top of the rigid frame, while the lower prefabricated components are suspended below the rigid frame by fixing nails, which can be made of stainless steel or aluminum alloy. Stainless steel fixing nails have excellent corrosion resistance and can be used for a long time in harsh environments such as humidity and acid / alkali. Aluminum alloy fixing nails are lightweight and high-strength, making them easy to install, while also meeting certain corrosion resistance requirements.

[0008] A hollow cavity is formed between the two layers of prefabricated components, and the cavity is filled with foam material. The foam material can be polyurethane foam or rock wool foam. Polyurethane foam has excellent sound insulation, heat insulation, and seismic resistance, while also possessing good flexibility and durability; rock wool foam, on the other hand, has fireproofing, heat insulation, and sound absorption properties. Appropriate foam materials can be selected according to different building requirements to improve the overall performance of the components.

[0009] To further save installation time and achieve better installation strength, one end of the prefabricated component is provided with a buckle, and the other end is provided with a slot that matches the buckle. Two directly adjacent prefabricated components are connected by the cooperation between the buckle and the slot.

[0010] To enhance the connection strength between the upper and lower precast components, the surface of the precast component is provided with several through grooves. The upper and lower precast components are connected by steel connectors that run through the through grooves. Adjacent steel connectors are connected by fasteners. That is, after adjacent precast components are positioned by cross-shaped hollow steel pipes, they are connected by steel connectors and fasteners.

[0011] The buckle includes a buckle body, with limiting grooves at both ends that match the steel connectors, and positioning grooves on the sides of the limiting grooves that match the connecting posts. When the buckle body is snapped into two adjacent steel connectors, the connecting posts pass through the buckle body and the steel connectors in sequence, with the exposed portion of the length outside the buckle body.

[0012] The weight of the upper prefabricated components is greater than that of the lower prefabricated components. This weight distribution design, with the upper prefabricated components weighing more than the lower ones, lowers the center of gravity of the entire assembly, enhancing its overturning resistance and further improving structural stability. In practical applications, this design effectively copes with horizontal loads such as wind and seismic loads, reducing the possibility of tilting or overturning and ensuring the safety of the building.

[0013] The hollow steel tubes in the cross shape are connected by welding, riveting, bolting, or fixing brackets. This variety of connection methods allows for flexible application based on different construction conditions and design requirements, ensuring a strong and reliable splicing of the rigid frame. Furthermore, the steel connectors are square steel rods with a non-circular design, effectively preventing swaying. Beneficial effects

[0014] In terms of connection methods, this device adopts multiple connection methods combining snap-fit ​​and slot, steel connectors and snap-fit ​​components, which makes the connection between prefabricated components simpler and more flexible. Moreover, during the installation process, no complicated tools are required to quickly complete the initial positioning and connection of adjacent prefabricated components, which greatly improves construction efficiency and shortens on-site construction time.

[0015] The combination of steel connectors and clips further strengthens the connection between upper and lower prefabricated components and between adjacent prefabricated components, forming a robust three-dimensional connection structure. This ensures the structural stability of the entire floor's connection components and meets the needs of rapid installation in prefabricated modular buildings.

[0016] Filling the hollow cavity between two layers of prefabricated components with foam material not only reduces the overall weight of the component but also significantly improves its sound insulation and heat insulation performance by utilizing the properties of the foam material. During natural disasters such as earthquakes, the elasticity and cushioning effect of the foam material effectively absorbs and dissipates seismic energy, reducing the impact of earthquakes on the building structure, thereby improving the component's seismic resistance and lowering the risk of building damage during earthquakes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembled earthquake-resistant floor connection components for a modular building.

[0018] Figure 2 This is a schematic diagram of the rigid frame after assembly;

[0019] Figure 3 This is a structural schematic diagram of a single prefabricated component;

[0020] Figure 4 This is a schematic diagram showing the connection between two adjacent prefabricated components;

[0021] Figure 5 This is a schematic diagram showing the connection between two adjacent precast components and the cross-shaped hollow steel pipe;

[0022] Figure 6 This is a schematic diagram showing the installation between the cross-shaped hollow component and the prefabricated component at the bottom;

[0023] Figure 7 This is a partial exploded view of the fastener;

[0024] Figure 8 This is a schematic diagram showing the installation of a single clip.

[0025] In the diagram: 1. Precast component 11. Through groove 12. Slot 13. Buckle 2. Cross-shaped hollow steel pipe 3. Buckle 31. Buckle body 32. Positioning groove 33. Limiting groove 34. Connecting column 341. Connecting column striking point 4. Steel connector 5. Hollow cavity 6. Fixing nail. Detailed Implementation

[0026] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model. Example

[0027] This embodiment provides a seismic-resistant floor connection component for modular buildings, the specific structure of which is as follows:

[0028] The rigid frame is composed of several cross-shaped hollow steel tubes 2 spliced ​​together. The cross-shaped hollow steel tubes 2 have a cross-shaped cross-section. Adjacent cross-shaped hollow steel tubes 2 are connected together by welding to form a stable frame structure. Precast components 1 are laid on the rigid frame. The upper layer of precast components 1 is placed flat on top of the rigid frame, and the lower layer of precast components 1 is suspended below the rigid frame by stainless steel fixing nails 6. A hollow cavity 5 is formed between the two layers of precast components 1, and the hollow cavity 5 is filled with polyurethane foam material.

[0029] One end of the precast component 1 is provided with a buckle 13, and the other end is provided with a slot 12 that matches the buckle 13. Two directly adjacent precast components 1 are connected by the engagement of the buckle 13 and the slot 12. The surface of the precast component 1 is provided with several through slots 11, and two upper and lower precast components 1 are connected by steel connectors 4 that pass through the through slots 11.

[0030] Two adjacent steel connectors 4 are connected by a snap fastener 3. The snap fastener 3 includes a snap fastener body 31. The two ends of the snap fastener body 31 are provided with limiting grooves 33 that match the steel connectors 4. The side of the limiting grooves 33 is provided with positioning grooves 32 that match the connecting post 34. When the snap fastener body 31 is snapped into two adjacent steel connectors 4, the connecting post 34 passes through the snap fastener body 31 and the steel connectors 4 in sequence, and 15mm of its length is exposed outside the snap fastener body 31. The connecting post striking point 341 of the connecting post 34 facilitates the construction personnel to fix the connecting post 34 in place.

[0031] The weight of the upper precast component 1 is greater than that of the lower precast component 1. This reasonable weight distribution improves the stability of the components. In actual construction, the cross-shaped hollow steel pipe 2 and the precast component 1 are first precast in the factory. Then, the cross-shaped hollow steel pipe 2 is transported to the site for welding and splicing to form a rigid frame. Next, the lower precast component 1 is suspended and installed under the rigid frame using fixing nails 6. Then, the upper precast component 1 is laid, and adjacent precast components 1 are connected by clips 13 and slots 12. Finally, polyurethane foam material is filled into the hollow cavity 5 to complete the installation of the entire floor connection components.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A seismic-resistant floor connection component for modular buildings, characterized in that, It includes a rigid frame made up of several cross-shaped hollow steel pipes, on which several prefabricated components are laid. The cross-shaped hollow steel pipes have a cross-shaped ...

2. The seismic-resistant floor connection component for modular buildings according to claim 1, characterized in that... One end of the prefabricated component is provided with a buckle, and the other end is provided with a slot that matches the buckle. Two directly adjacent prefabricated components are connected by the cooperation between the buckle and the slot.

3. The seismic-resistant floor connection component for modular buildings according to claim 2, characterized in that... The surface of the precast component is provided with several through grooves. Two precast components are connected by steel connectors that run through the through grooves. Two adjacent steel connectors are connected by fasteners. That is, after adjacent precast components are positioned by cross-shaped hollow steel pipes, they are connected by steel connectors and fasteners.

4. The seismic-resistant floor connection component for modular buildings according to claim 3, characterized in that... The buckle includes a buckle body, with limiting grooves at both ends that match the steel connectors, and positioning grooves on the sides of the limiting grooves that match the connecting posts. When the buckle body is snapped into two adjacent steel connectors, the connecting posts pass through the buckle body and the steel connectors in sequence, with the exposed portion extending outside the buckle body.

5. The seismic-resistant floor connection assembly for modular buildings according to any one of claims 1-4, characterized in that... The weight of the precast components on the upper layer is greater than the weight of the precast components on the lower layer.

6. The seismic-resistant floor connection component for modular buildings according to claim 1, characterized in that... The hollow steel pipes in the cross shape are connected by welding, riveting, bolting, or fixing brackets.

7. The seismic-resistant floor connection component for modular buildings according to claim 1, characterized in that... The foaming material is polyurethane foam or rock wool foam.

8. The seismic-resistant floor connection component for modular buildings according to claim 4, characterized in that... The steel connector is a square steel rod.

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