Laminated steel mesh strip-shaped foundation structure
By using a composite steel mesh strip foundation structure, the problems of cumbersome construction and high thermal bridging effect in existing technologies are solved, achieving rapid construction and high-strength thermal insulation performance, thus enhancing the safety and durability of buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGJUN NEW MATERIAL TECH CO LTD
- Filing Date
- 2026-01-16
- Publication Date
- 2026-04-14
AI Technical Summary
Existing composite steel mesh insulation wall foundations suffer from problems such as cumbersome construction, long construction period, high thermal bridging effect, poor structural integrity, and insufficient durability, which affect building safety and insulation performance.
The composite steel mesh strip foundation structure is adopted, including a concrete foundation, foundation walls, first and second steel wire mesh frames, insulation boards and connecting components. The foundation beams and connecting steel bars form an integrated load-bearing system, which enhances the structural strength and thermal insulation performance.
It enables rapid construction, improves structural strength and thermal insulation performance, reduces thermal bridging effect, enhances resistance to horizontal forces and uneven settlement, and ensures building safety and durability.
Smart Images
Figure CN224119584U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building foundation structure technology, specifically relating to a composite steel mesh strip foundation structure suitable for strip foundations of prefabricated farmhouses. Background Technology
[0002] Building foundations are critical components that transfer the loads of the superstructure to the ground, and their performance directly affects the safety, usability, and durability of a building. Currently, the prevailing standard for reinforced concrete foundation structures is the "Code for Design of Building Foundations" (GB50007-2011). Foundation construction is carried out in stages, resulting in cumbersome and time-consuming construction procedures and a high thermal bridging effect in the foundation walls. This high thermal bridging effect leads to increased contact between the foundation walls and outdoor soil / cold air, reducing their thermal performance and further exacerbating heat loss from the interior, thus affecting insulation effectiveness.
[0003] Because composite steel mesh insulation walls possess unique structural strength, integrity, and durability, to ensure the safety, applicability, durability, and economy of the design while meeting national technical regulations, current construction methods differ from existing national standards in structural design parameters such as reinforcement ratio. The foundation fabrication of composite steel mesh insulation walls generally references the fabrication process and structural design of reinforced concrete foundations. The existing structure and forming process have the following problems: First, the interface bond strength between the foundation and the wall is significantly reduced, affecting the structural force transmission efficiency; second, the overall structural integrity is weakened, resulting in insufficient resistance to horizontal forces and uneven settlement; third, the risk of concrete shrinkage cracks increases significantly, reducing structural stability; fourth, durability and waterproofing performance are compromised, making leakage and corrosion more likely; and fifth, construction quality control is difficult, heavily reliant on the technical skills of construction personnel, leading to inconsistent quality. Utility Model Content
[0004] The purpose of this utility model is to address the problems of cumbersome construction, long construction period, high thermal bridging effect, and poor structural integrity of existing composite steel mesh insulated wall foundations, and to provide a composite steel mesh strip foundation structure that is structurally reasonable, easy to construct, has excellent thermal insulation performance, and high structural strength.
[0005] The overall technical concept of this utility model is:
[0006] A composite steel mesh strip foundation structure includes a concrete foundation cap and foundation walls. The foundation cap includes a first wire mesh frame located within a foundation trench and / or sump, and mesh panels and / or membrane panels assembled on the outside of the first wire mesh frame. The foundation wall includes a second wire mesh frame extending longitudinally along the length of the foundation cap and an insulation board embedded within it. The second wire mesh frame includes longitudinally distributed and transversely spaced main reinforcing mesh and non-removable mesh membranes spaced on its outer side. The main reinforcing mesh and non-removable mesh membranes are connected by second insert wires. The foundation cap is connected to the foundation wall or to the foundation wall via a concrete foundation beam, wherein:
[0007] When the foundation cap is connected to the foundation wall, the lower part of the main reinforcement mesh is anchored to the concrete inside the foundation cap through connecting steel bars;
[0008] When the foundation cap is connected to the foundation wall through the foundation beam, the main reinforcement mesh extends downward to the upper surface of the foundation beam grid, and the non-removable mesh extends to the upper surface of the first wire mesh and connects with it.
[0009] The applicant should clarify that foundation beams are not essential for composite steel mesh strip foundation structures. Their inclusion depends on foundation conditions, structural stress requirements, and pile cap arrangement. They are only necessary as supporting components in specific scenarios. The core functions of foundation beams are: 1. To transfer loads between shear walls: transferring shear wall loads that adjacent pile caps cannot directly bear to the pile caps, preventing localized foundation overloading. 2. To enhance structural integrity: connecting independent pile caps to form a unified load-bearing system, improving the foundation's resistance to horizontal forces (such as earthquakes and wind loads) and uneven settlement. 3. To control settlement deformation: constraining pile cap displacement through beam stiffness, reducing the impact of uneven settlement on the superstructure. The impact of uneven settlement on the superstructure includes, but is not limited to, cracks, deformation, or collapse of the superstructure, deformation and cracking of floors (roofs), damage to beams and columns in the superstructure, and overall structural instability.
[0010] The specific technical concept of this utility model also includes:
[0011] To ensure the structural strength of the first wire mesh frame and to prevent leakage during concrete pouring, the preferred technical means is that the first wire mesh frame includes first wire meshes distributed laterally and spaced longitudinally, first insert wires connecting adjacent first wire meshes, first edge sealing film covering the inner and outer sides of the first wire mesh frame, first reinforcing ribs fixed to the bottom and / or sides of the first wire mesh frame, and side meshes tied around the first wire mesh.
[0012] To facilitate better assembly of the components, the preferred technical means is that the first edge sealing mesh is tightly fitted and fixedly connected to the first wire mesh and the side mesh.
[0013] The first reinforcing rib is mainly used for resisting bending and / or shear and / or bearing load. The preferred technical means is that the first reinforcing rib is evenly distributed along the bottom and / or side of the first wire mesh frame and fixed to the first wire mesh.
[0014] To prevent concrete from easily flowing away during pouring and to ensure the integrity of the foundation wall shape, the preferred technical means is that the non-removable mesh includes a secondary reinforcing mesh and a mesh sheet attached to the surface of the secondary reinforcing mesh; the second insert wire crosses through the insulation board and is fixed to the main reinforcing mesh and the secondary reinforcing mesh respectively, and a positioning clip for limiting the position of the insulation board is provided between the main reinforcing mesh and the insulation board.
[0015] To facilitate better positioning of the insulation board within the second wire mesh frame, the positioning clips utilize clips and / or profiles and / or steel mesh. These positioning clips are attached to the surface of the insulation board and fixed to the second wire mesh frame. The positioning clips provide point, line, or surface support and positioning for the insulation board.
[0016] To prevent the second insert wire from detaching after being welded to the secondary reinforcing mesh, thus failing to provide fixation and positioning, the preferred technical solution is to provide hooks at both ends of the second insert wire for positioning the secondary reinforcing mesh.
[0017] To ensure the structural strength of the foundation beam, the foundation beam includes a foundation beam space frame and concrete poured into the cavity of the foundation beam space frame; the foundation beam space frame includes U-shaped stirrups arranged at intervals along the length of the foundation beam and distributed longitudinally, main reinforcing bars extending along the length of the foundation beam, and a second sealing mesh covering the exposed surface of the foundation beam space frame; the lower part of the U-shaped stirrups is anchored to the foundation concrete, and the main reinforcing bars are arranged at the bends of the U-shaped stirrups and the adjacent parts of the U-shaped stirrups and the foundation.
[0018] To facilitate connection with the superstructure, a preferred technical means is to include embedded reinforcing bars for connection with the superstructure; the embedded reinforcing bars are longitudinally located within the foundation wall concrete with their top ends exposed.
[0019] There are various technical solutions for setting up pre-embedded bars. The preferred technical solution is as follows: the pre-embedded bars are positioned with the foundation wall concrete by post-installation and / or pre-embedding.
[0020] The stress and heat preservation principle of this utility model is as follows:
[0021] Force transfer: The load of the superstructure is transferred to the foundation wall through the pre-embedded reinforcement, and then from the foundation wall to the pile cap. The first reinforcing bar, the main reinforcement mesh, etc. work together to resist bending moment and shear force. When the foundation beam is set, it will transfer the load of the shear wall to the pile cap, enhance the overall force system, and resist horizontal force and uneven settlement.
[0022] Thermal insulation: The insulation boards inside the foundation wall reduce heat exchange between the foundation and the outdoor soil and cold air, reduce the thermal bridging effect, reduce indoor heat loss, and improve the building's thermal insulation performance.
[0023] Technical effect
[0024] The technological advancements achieved by this utility model are as follows:
[0025] 1. When there is no foundation beam in the structural design, the main reinforcement mesh of the foundation wall in this utility model is anchored to the concrete in the cavity of the first wire mesh frame by connecting the reinforcing bars. First, it effectively meets the connection strength between the foundation wall and the foundation. Second, it can achieve rapid construction by pouring the foundation wall after the foundation concrete has initially set. Third, it can be easily positioned by support during construction to ensure the flatness and verticality requirements of the foundation wall.
[0026] 2. When there is a foundation beam in the structural design, the main reinforcement mesh of the foundation wall in this utility model extends downward and connects with the first wire mesh frame. Firstly, the U-shaped stirrups and main reinforcement bars of the foundation beam can not only serve as load-bearing elements, but also serve as a structural medium connecting the foundation wall and the foundation cap. Secondly, during the connection construction, it can be conveniently positioned through support to ensure the flatness and verticality requirements of the foundation wall.
[0027] 3. The first stiffener in the foundation can play a role in resisting bending, shear and bearing, and improve the structural strength of the foundation and its ability to resist uneven settlement.
[0028] 4. The main functions of the first insert wire are to ensure the thickness of the first wire mesh frame and to work with the first wire mesh to form a stable first wire mesh frame structure with good structural strength.
[0029] 5. The main functions of the second insert wire structure design are: firstly, the cross-shaped oblique insert structure is mainly used to position the insulation board, and the positioning component further improves the positioning effect of the insulation board; secondly, the hooks at both ends of the second insert wire are used to prevent detachment from the secondary reinforcing mesh and improve the tensile strength, which is conducive to structural stability.
[0030] 6. According to the applicant's test, although the cost of the composite steel mesh strip foundation structure made using this utility model is slightly higher than that of the existing foundation structure (not exceeding 10%), the construction period is increased by at least twice, and the structural strength is not lower than that of the foundation structure prepared by the existing construction method. Attached Figure Description
[0031] Figure 1 This is a diagram showing the usage state of this utility model, which includes a foundation beam.
[0032] Figure 2 This is a diagram showing the usage state of this utility model without a foundation beam.
[0033] Figure 3 yes Figure 1 , 2 A magnified view of part F in the middle.
[0034] Figure 4 yes Figure 1 A magnified view of a section of the G-shaped area.
[0035] Figure 5 yes Figure 1 , 2 A magnified view of part H in the middle.
[0036] The reference numerals in the attached figures are as follows:
[0037] 1. Foundation cap; 11. First wire mesh; 12. First insert wire; 13. First edge sealing mesh; 14. First reinforcing bar; 15. Side mesh; 2. Foundation beam; 21. U-shaped stirrup; 22. Main reinforcing bar; 23. Second edge sealing mesh; 3. Foundation wall; 31. Insulation board; 32. Main reinforcing mesh; 33. Removable mesh; 331. Secondary reinforcing mesh; 332. Mesh; 34. Second insert wire; 35. Positioning clips; 4. Embedded reinforcing bar; 5. Corner mesh. Detailed Implementation
[0038] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, but this is not intended to limit the utility model. The scope of protection of this utility model is determined by the content of the claims. Any equivalent technical means substitutions made based on the description do not depart from the essence of this utility model.
[0039] The overall structure of this embodiment is shown in the figure, including a concrete foundation 1 and a foundation wall 3; the foundation 1 includes a first wire mesh frame disposed in the foundation trench and / or trough, the first wire mesh frame includes first wire mesh 11 distributed laterally and spaced longitudinally, first insert wires 12 are connected between adjacent first wire mesh 11, a first edge sealing mesh 13 is tightly attached to and fixedly connected to the first wire mesh 11 and the side mesh 15, a first reinforcing rib 14 is evenly distributed along the bottom and / or side of the first wire mesh frame and fixed to the first wire mesh 11, and the side mesh 15 is tied around the first wire mesh 11.
[0040] The foundation wall 3 includes a second wire mesh frame extending longitudinally along the length of the foundation 1 and an insulation board 31 embedded within it. The second wire mesh frame includes longitudinally distributed and laterally spaced main reinforcing mesh 32 and non-removable mesh film 33 spaced on its outer side. The main reinforcing mesh 32 and the non-removable mesh film 33 are connected by second insert wires. The non-removable mesh film 33 includes secondary reinforcing mesh 331 and mesh sheets 332 attached to the surface of the secondary reinforcing mesh 331. The second insert wires 34 cross through the insulation board 31 and are welded and fixed to the main reinforcing mesh 32 and the secondary reinforcing mesh 331 respectively. The two ends of the second insert wires 34 are provided with hooks for limiting the position of the secondary reinforcing mesh 331. A positioning clip 35 is provided between the main reinforcing mesh 32 and the insulation board 31 for point support positioning of the insulation board 31. The positioning clip 35 is a clip block. The positioning clip 35 is attached to the surface of the insulation board 31 and fixed to the second wire mesh frame. The specific structure is as follows. Figure 3 As shown.
[0041] The foundation cap 1 is connected to the foundation wall 3 or to the foundation wall 3 through the concrete foundation beam 2, wherein:
[0042] like Figure 1 , 3 As shown in Figures 4 and 5, when the foundation 1 is connected to the foundation wall 3 via the foundation beam 2, the main reinforcement mesh 32 extends downward to the upper surface of the foundation beam grid, the non-removable mesh 33 extends to the upper surface of the first wire mesh, and the secondary reinforcement mesh 331 is connected to the first wire mesh 11 via the corner mesh 5. The foundation beam 2 includes the foundation beam grid and the concrete poured into the cavity of the foundation beam grid; the foundation beam grid includes U-shaped stirrups 21 spaced apart and longitudinally distributed along the length of the foundation beam, main reinforcing bars 22 extending along the length of the foundation beam, and a second sealing mesh 23 covering the exposed surface of the foundation beam grid; the lower part of the U-shaped stirrups 21 is anchored to the concrete of the foundation 1, and the main reinforcing bars 22 are arranged at the bends of the U-shaped stirrups 21 and at the junctions between the U-shaped stirrups 21 and the foundation 1.
[0043] like Figure 2 , 3 As shown in Figure 5, when the foundation 1 is connected to the foundation wall 3, the lower part of the main reinforcement mesh 32 is anchored to the concrete inside the foundation 1 through the connecting steel bars tied to it.
[0044] It also includes embedded bars 4 for connection with the superstructure; the embedded bars 4 are longitudinally located in the concrete of the foundation wall 3 and their top ends are exposed.
[0045] The embedded reinforcement bars can be installed in the following ways: the embedded reinforcement bars 4 are installed post-installed, and holes are drilled and inserted after the concrete of the foundation wall 3 has initially set; the embedded reinforcement bars 4 can also be pre-embedded, and after the embedded reinforcement bars 4 are tied and fixed to the main reinforcement mesh 32, concrete is poured to anchor them and position them with the concrete of the foundation wall 3.
[0046] The manufacturing and assembly process of this embodiment is as follows:
[0047] 1. Foundation treatment: The foundation is leveled and compacted. According to the geological survey report, the characteristic value of the foundation bearing capacity is determined to be 110 kN / m². Therefore, the width of the foundation cap 1 is designed to be 600 mm and the height is 300 mm. The foundation trench of the corresponding size is excavated. The width and height of the foundation cap are determined according to the characteristic value of the foundation bearing capacity.
[0048] 2. Foundation Construction: A5 threaded steel bars are welded to form a first wire mesh 11 with horizontal distribution and longitudinal spacing. First insert wires 12 made of A3 galvanized steel wire are welded together, with adjacent insert wires 12 spaced 100 mm apart, forming a first wire mesh frame. Side mesh panels 15 are tied around the first wire mesh 11, and the inner and outer sides are covered with a first edge-sealing mesh 13 made of a composite material of A2.2 galvanized steel wire mesh and galvanized lead mesh. First reinforcing ribs 14 made of HRB400 material with a diameter of C20 are fixed at the bottom of the first wire mesh frame. The straight section length meets the requirement of a 40 mm distance from the outer edge of the reinforcing bar to the structural edge, and the bent section length is 15 times the nominal diameter of the first reinforcing rib 14, evenly spaced at 250 mm intervals. The assembled first wire mesh frame is then placed into the foundation trench.
[0049] 3A. Foundation wall construction without foundation beam: Due to uniform foundation conditions and a pile cap spacing of 2.5 meters (≤3 meters), foundation beam 2 is not required; assemble the second wire mesh frame, with main reinforcing mesh 32 arranged longitudinally and intermittently, and non-removable mesh 33 installed at intervals on the outer side; place the insulation board 31 into the second wire mesh frame, and weld it to the main reinforcing mesh 32 and secondary reinforcing mesh 331 respectively after passing through the insulation board with cross-inserted second wires 34. The two ends of the second wires 34 form hooks that limit the secondary reinforcing mesh 331. Use positioning clips 35 to support and position the insulation board at multiple points; anchor the connecting steel bars tied to the main reinforcing mesh 32 to the pile cap concrete. Use a U-shaped pneumatic nail gun for tying, and use a post-installation method to set the pre-embedded steel bars 4. After the foundation wall concrete has initially set, drill holes and insert them to ensure that the upper end is exposed; add support to the surface of the non-removable mesh 33, pour concrete and cure for 7 days.
[0050] 3B. Construction of foundation walls containing foundation beams: When foundation beams are required, the main reinforcement mesh 32 extends downwards to the upper surface of the foundation beam space frame, and the non-removable mesh 33 extends to the upper surface of the first wire mesh frame. The secondary reinforcement mesh 331 is connected to the first wire mesh 11 via corner mesh 5. The foundation beam space frame includes U-shaped stirrups 21 spaced at intervals along the length of the foundation beam and longitudinally distributed, main reinforcing bars 22 extending along the length of the foundation beam, and a second sealing mesh 23 covering the exposed surface of the foundation beam space frame; the lower part of the U-shaped stirrups 21 is anchored to the concrete of the foundation 1, and the main reinforcing bars 22 are arranged at the bends of the U-shaped stirrups 21 and the adjacent parts of the U-shaped stirrups 21 and the foundation 1; there is no need to connect the reinforcing bars to the foundation concrete for anchoring, and the steps of pouring concrete and pre-embedding the reinforcing bars are the same as in 3A.
[0051] 4. After the foundation wall concrete has fully cured, it is connected to the upper composite steel mesh wall through the exposed embedded reinforcement bar 4 to complete the assembly of the overall foundation and the upper structure.
Claims
1. A composite steel mesh strip foundation structure, characterized in that... The structure includes a concrete foundation (1) and a foundation wall (3); the foundation (1) includes a first wire mesh frame installed in the foundation trench and / or trough, and mesh and / or membranes assembled on the outside of the first wire mesh frame; the foundation wall (3) includes a second wire mesh frame extending longitudinally along the length of the foundation (1) and an insulation board (31) embedded therein, the second wire mesh frame including longitudinally distributed and transversely spaced main reinforcing mesh (32) and non-removable mesh membranes (33) spaced on its outside, the main reinforcing mesh (32) and non-removable mesh membranes (33) being connected by a second insert wire; the foundation (1) is connected to the foundation wall (3) or to the foundation wall (3) through a concrete foundation beam (2), wherein: When the foundation (1) is connected to the foundation wall (3), the lower part of the main reinforcement mesh (32) is anchored to the concrete inside the foundation (1) through the connecting steel bars; When the foundation (1) is connected to the foundation wall (3) through the foundation beam (2), the main reinforcement mesh (32) extends downward to the upper surface of the foundation beam mesh frame, and the non-removable mesh (33) extends to the upper surface of the first wire mesh frame and connects with it.
2. The composite steel mesh strip foundation structure according to claim 1, characterized in that... The first wire mesh frame includes first wire meshes (11) that are distributed laterally and spaced longitudinally, first insert wires (12) connecting adjacent first wire meshes (11), first edge sealing film (13) covering the inner and outer sides of the first wire mesh frame, first reinforcing ribs (14) fixed to the bottom and / or sides of the first wire mesh frame, and side meshes (15) tied around the first wire meshes (11).
3. The composite steel mesh strip foundation structure according to claim 2, characterized in that... The first edge sealing mesh (13) is tightly fitted and fixedly connected to the first wire mesh (11) and the side mesh (15).
4. The composite steel mesh strip foundation structure according to claim 2, characterized in that... The first reinforcing rib (14) is evenly distributed along the bottom and / or side of the first wire mesh frame and is fixed to the first wire mesh (11).
5. The composite steel mesh strip foundation structure according to claim 1, characterized in that... The non-removable mesh (33) includes a secondary reinforcing mesh (331) and a mesh attached to the surface of the secondary reinforcing mesh (331); the second insert wire (34) crosses through the insulation board (31) and is welded and fixed to the main reinforcing mesh (32) and the secondary reinforcing mesh (331) respectively. A positioning clip (35) for limiting the insulation board (31) is provided between the main reinforcing mesh (32) and the insulation board (31).
6. The composite steel mesh strip foundation structure according to claim 5, characterized in that... The positioning clip (35) is made of clip blocks and / or profiles and / or steel mesh. The positioning clip (35) is attached to the surface of the insulation board (31) and fixed to the second wire mesh frame.
7. The composite steel mesh strip foundation structure according to claim 1, 5, or 6, characterized in that... The second insert wire (34) has hooks at both ends for limiting the secondary reinforcing mesh (331).
8. The composite steel mesh strip foundation structure according to claim 1, characterized in that... The foundation beam (2) includes the foundation beam space frame and the concrete poured into the cavity of the foundation beam space frame; the foundation beam space frame includes U-shaped stirrups (21) arranged at intervals along the length of the foundation beam and distributed longitudinally, main reinforcing bars (22) extending along the length of the foundation beam, and a second sealing mesh (23) covering the exposed surface of the foundation beam space frame; the lower part of the U-shaped stirrups (21) is anchored to the concrete of the foundation (1), and the main reinforcing bars (22) are arranged at the bending part of the U-shaped stirrups (21) and the adjacent part of the U-shaped stirrups (21) and the foundation (1).
9. The composite steel mesh strip foundation structure according to claim 1, characterized in that... It also includes embedded bars (4) for connection with the superstructure; the embedded bars (4) are longitudinally located in the concrete of the foundation wall (3) and exposed at the top.
10. The composite steel mesh strip foundation structure according to claim 1, characterized in that... The embedded bars (4) are positioned with the foundation wall (3) concrete by post-installation and / or pre-embedding.