A light steel keel beam structure integrating shock insulation, moisture prevention and heat preservation

By adopting a modularly designed light steel keel ground beam structure for the ground of the light steel structure house, the problems of complex construction and poor vibration isolation are solved, enabling rapid assembly and efficient construction, and meeting the thermal insulation and energy-saving requirements of ultra-low energy consumption houses.

CN224413038UActive Publication Date: 2026-06-26CHANGZHOU VOCATIONAL INST OF ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU VOCATIONAL INST OF ENG
Filing Date
2025-07-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing light steel structure houses have complicated ground construction procedures and poor vibration isolation and heat insulation, which limits their application and the promotion of green building materials.

Method used

The structure adopts a light steel keel ground beam structure that integrates vibration isolation, moisture protection, and heat insulation. The ground beam frame is assembled by combining short ground beams and long ground beams, and is covered with rubber pads, cement-based moisture-proof boards, and polyurethane insulation boards. It is fixed with rivets to form a modular load-bearing beam.

Benefits of technology

It simplifies the construction process, improves construction efficiency, meets the thermal insulation and energy-saving requirements of ultra-low energy consumption houses, and promotes the application of green building materials and the development of ultra-low energy consumption houses.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224413038U_ABST
    Figure CN224413038U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of light steel keel floor beam structure integrating shock insulation, moisture-proof and heat preservation, including the floor beam framework as load-bearing component, the floor beam framework is combined and assembled by short floor beam and long floor beam, rubber pad is fully paved on floor beam framework, cement-based moisture-proof board is paved on rubber pad, polyurethane insulation board is fully paved on the cement-based moisture-proof board.The utility model is made into floor beam framework by thin-walled light steel keel, and rubber pad, cement-based moisture-proof board and polyurethane insulation board are laid on it, form the floor beam structure integrating shock insulation, moisture-proof and heat preservation, modular design, factoryization blanking, light steel module load-bearing beam is assembled on site, greatly simplify construction technology, improve construction efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and in particular to a light steel keel ground beam structure that integrates earthquake isolation, moisture protection and heat insulation. Background Technology

[0002] Cold-formed thin-walled light steel keel structures, formed from hot-dip galvanized aluminum steel strips using cold rolling technology, are a type of building structure that allows for rapid assembly and is energy-efficient. Thin-walled light steel structure houses offer advantages such as small structural component cross-sectional dimensions, light weight, high load-bearing capacity, and good overall integrity. They represent a key development direction for prefabricated buildings and are currently the preferred structural type for ultra-low energy consumption housing.

[0003] Currently, the ground of light steel structure houses still basically continues the traditional reinforced concrete cast-in-place construction method, which involves many construction procedures and a long construction period. At the same time, due to a series of reasons such as poor vibration isolation and poor thermal insulation, the application of light steel structure is limited to a certain extent, which indirectly hinders the widespread application of new green building materials.

[0004] Therefore, the structural type, construction method, and functional indicators of the floors (ground) of light steel structure houses need to be reconstructed. While ensuring the load-bearing capacity of the floors (ground), how to achieve the insulation, energy saving, and vibration reduction indicators of the floors (ground) of light steel structure houses, and how to orderly integrate each functional layer according to the performance requirements of ultra-low energy consumption houses, adopt rapid assembly methods, and simplify construction processes are key directions for promoting the upgrading of light steel structures and the application of green building materials. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the existing technology, this utility model provides a thin-walled light steel keel structure that integrates shock isolation, moisture protection and heat preservation, which can simplify the construction process.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a light steel keel ground beam structure integrating shock isolation, moisture prevention and heat preservation, including a ground beam skeleton as a load-bearing component, the ground beam skeleton is assembled by combining short ground beams and long ground beams, the ground beam skeleton is fully covered with rubber pads, the rubber pads are covered with cement-based moisture-proof boards, and the cement-based moisture-proof boards are fully covered with polyurethane insulation boards.

[0007] Specifically, the ground beam frame includes several parallel long ground beams, and the short ground beams are fixed between adjacent long ground beams. Both the long and short ground beams are assembled from thin-walled light steel keels.

[0008] Preferably, the thickness of the rubber pad is 10mm, the thickness of the cement-based moisture-proof board is 10-15mm, and the thickness of the polyurethane insulation board is 100mm.

[0009] To meet the normal functional requirements of the ground or floor, solid wood flooring is laid on the polyurethane insulation board.

[0010] To meet the requirements for ground installation, it also has a square steel frame, which is fixed to the ground by fasteners. The ground beam skeleton is fixed to the square steel frame by rivets, and an elastic pad is provided between the ground beam skeleton and the square steel frame.

[0011] The beneficial effects of this utility model are as follows: This utility model uses thin-walled light steel keel to make a ground beam skeleton, and lays rubber pads, cement-based moisture-proof boards and polyurethane insulation boards on it to form a ground beam structure that integrates shock isolation, moisture protection and heat preservation. The modular design and factory cutting of materials, and the assembly on site into light steel modular load-bearing beams, greatly simplify the construction process and improve construction efficiency. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0015] Figure 3 This is a schematic diagram of the structure of the ground beam frame described in this utility model.

[0016] Figure 4 This is a structural schematic diagram of the square steel frame described in this utility model.

[0017] In the diagram: 1. Ground beam frame, 1-1. Short ground beam, 1-2. Long ground beam, 2. Rubber pad, 3. Cement-based moisture-proof board, 4. Polyurethane insulation board, 5. Solid wood flooring, 6. Square steel frame, 7. Fasteners, 8. Elastic pad. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] like Figures 1-4The diagram illustrates a lightweight steel keel ground beam structure integrating vibration isolation, moisture protection, and thermal insulation. It includes a ground beam frame 1 as a load-bearing component. The ground beam frame 1 is assembled from short ground beams 1-1 and long ground beams 1-2. The ground beam frame 1 comprises several parallel long ground beams 1-2. Short ground beams 1-1 are fixed between adjacent long ground beams 1-2. Both the long ground beams 1-2 and short ground beams 1-1 are made of 1mm thick thin-walled lightweight steel keel, manufactured through modular design, factory cutting, and rolling, and assembled on-site using riveting. Each long ground beam 1-2 and short ground beam 1-1 consists of two upper and lower supporting keels, left and right end capping keels, and diagonal stiffening keels spaced no more than 300mm apart in the middle. Generally, the long ground beams 1-2 serve as longitudinal load-bearing beams, and the short ground beams 1-1 serve as transverse load-bearing beams.

[0020] The ground beam frame 1 is fully covered with 10mm thick rubber pads 2, which serve to isolate vibration, reduce noise and prevent moisture. When laying the rubber pads 2, the splicing seam between two adjacent rubber pads 2 must be ensured to fall on the long ground beam 1-2 or short ground beam 1-1 below, so as to fix the rubber pads 2 to the ground beam frame 1.

[0021] A 12mm thick cement-based moisture-proof board 3 is laid on the rubber pad 2 to facilitate bearing the weight of the upper functional layer and the floor (ground) load. During installation, while ensuring that the splicing joint of two adjacent cement-based moisture-proof boards 3 falls on the long ground beam 1-2 or the short ground beam 1-1, they also need to be spliced ​​with staggered joints in the horizontal or vertical direction to reduce the slippage and deformation of the cement-based moisture-proof board 3 under load.

[0022] The cement-based moisture-proof board 3 is fully covered with a 100mm thick polyurethane insulation board 4. To improve the thermal insulation effect of the floor, the polyurethane insulation board 4 must be laid with staggered joints in both the horizontal and vertical directions. The rivets used for fixing must penetrate the entire polyurethane insulation board 4 and be connected to the cement-based moisture-proof board 3 below. After the polyurethane insulation board 4 is assembled and fixed, solid wood flooring 5 can be laid on top of the polyurethane insulation board 4 to meet the normal use function of the floor.

[0023] If applied to the installation of ground light steel keel ground beams, it also has a square steel frame 6, which is fixed to the ground by fasteners 7, and the ground beam skeleton 1 is fixed to the square steel frame 6 by rivets. An elastic pad 8 is provided between the ground beam skeleton 1 and the square steel frame 6.

[0024] The installation method is briefly described below:

[0025] 1. Installation of Light Steel Ground Beams: First, install the square steel frame 6 on the hardened ground. This square steel frame 6 is made of galvanized square steel with a wall thickness of 5mm and a cross-sectional size of 150×150mm. The longitudinal and transverse galvanized square steel are joined at 45mm angles.0 The oblique cross-section is connected by arc welding to form a square steel frame 6 of integral structure. After the square steel frame 6 is leveled, the square steel frame 6 is fixed to the ground with fasteners 7 at intervals not exceeding 1000mm on the inner side of the square steel frame 6.

[0026] If the light steel ground beams are being installed on the floor, this step can be skipped.

[0027] 2. Before installing the ground beam frame 1, first lay a 5mm thick elastic pad 8 on top of the square steel frame 6, and then install and fix the ground beam frame 1. During installation, the long ground beams 1-2 and the short ground beams 1-1 are arranged at intervals in the longitudinal direction to ensure that the outer side of the ground beam frame 1 is flush with the outer side of the square steel frame 6. The ground beam frame 1 is fixedly connected to the square steel frame 6 below with rivets. At the same time, the upper surface of the ground beam frame 1 can be leveled by adding shims between the square steel frame 6 and the ground beam frame 1.

[0028] 3. After the ground beam frame 1 is leveled and fixed, lay a 10mm thick rubber pad 2 on top of it. The joint of the adjacent rubber pad 2 should fall directly above the long ground beam 1-2 or the short ground beam 1-1. Fix the rubber pad 2 to the long ground beam 1-2 and the short ground beam 1-1 with rivets. Then, lay the cement-based moisture-proof board 3 on top of the rubber pad 2 in a staggered manner. The joint of the two adjacent cement-based moisture-proof boards 3 should fall directly above the long ground beam 1-2 or the short ground beam 1-1 below as much as possible. Fix the cement-based moisture-proof board 3 to the ground beam frame 1 below with rivets. At the same time, the rivet spacing between the outer perimeter of the cement-based moisture-proof board 3 and the ground beam frame 1 below should not exceed 300mm.

[0029] 4. After the cement-based moisture-proof board 3 is fixed, lay the 100mm thick polyurethane insulation board 4 on top of it in a staggered splicing manner using rivets, and ensure that the rivets are at least fixed to the cement-based moisture-proof board 3 below before laying the solid wood flooring 5.

[0030] This utility model integrates seismic isolation, moisture-proofing, and thermal insulation. In accordance with the energy-saving requirements for floor (ground) insulation in ultra-low energy consumption housing, it combines the load-bearing layer, seismic isolation (soundproofing) layer, moisture-proof layer, and thermal insulation layer through a rapid assembly method using riveting. The load-bearing layer utilizes cold-formed thin-walled galvanized steel, modularly designed and factory-cut into C-shaped steel, which is then assembled on-site into lightweight steel modular load-bearing beams. Compared to traditional load-bearing beams, this method offers advantages such as smaller cross-sectional dimensions and lighter weight. Each floor (ground) functional layer employs a fully dry assembly construction method. This approach improves construction efficiency, simplifies construction processes, and ensures construction quality while fully utilizing new green and energy-saving building materials to meet the green environmental protection and energy-saving requirements of ultra-low energy consumption housing. It aligns with the development direction of green and low-carbon buildings, promoting the application of green building materials and driving the development of ultra-low energy consumption housing.

Claims

1. A lightweight steel keel ground beam structure integrating seismic isolation, moisture protection, and thermal insulation, comprising a ground beam frame (1) as a load-bearing component, characterized in that: The ground beam frame (1) is assembled from short ground beams (1-1) and long ground beams (1-2). The ground beam frame (1) is fully covered with rubber pads (2), and cement-based moisture-proof boards (3) are laid on the rubber pads (2). The cement-based moisture-proof boards (3) are fully covered with polyurethane insulation boards (4).

2. The light steel keel ground beam structure integrating seismic isolation, moisture protection, and heat insulation as described in claim 1, characterized in that: The ground beam frame (1) includes several parallel long ground beams (1-2), and the short ground beams (1-1) are fixed between adjacent long ground beams (1-2). The long ground beams (1-2) and the short ground beams (1-1) are all assembled from thin-walled light steel keels.

3. The light steel keel ground beam structure integrating seismic isolation, moisture protection, and heat insulation as described in claim 2, is characterized in that: The thickness of the rubber pad (2) is 10mm, the thickness of the cement-based moisture-proof board (3) is 10-15mm, and the thickness of the polyurethane insulation board (4) is 100mm.

4. The light steel keel ground beam structure integrating seismic isolation, moisture protection, and heat insulation as described in claim 3, characterized in that: Solid wood flooring (5) is laid on the polyurethane insulation board (4).

5. The light steel keel ground beam structure integrating seismic isolation, moisture protection, and heat insulation as described in claim 1, characterized in that: It has a square steel frame (6), which is fixed to the ground by fasteners (7), and the ground beam skeleton (1) is fixed to the square steel frame (6) by rivets. An elastic pad (8) is provided between the ground beam skeleton (1) and the square steel frame (6).