Silicate cover strip across-deformation joint system

Abstract

This utility model relates to a system for crossing expansion joints, belonging to the field of building engineering technology. Specifically, it is a silicate cover plate system for crossing expansion joints, including a concrete floor slab and a wall. A side joist is fixedly installed on one side of the wall, and a hoisting assembly is also included. A leveling layer is fixedly installed at the bottom of the concrete floor slab. The hoisting assembly includes angle steel fixedly installed at the bottom of the leveling layer, with lifting rods welded to the angle steel. This utility model achieves cost savings while meeting the aesthetic requirements of crossing expansion joints. It solves the problems of existing horizontal joints using flat supports and sealant filling, where the sealant is prone to aging, has poor airtightness, and is unsightly. Furthermore, the composite board has high production costs, and if the ventilation grooves become blocked or the seal fails, the external decorative surface layer must be removed and the composite board re-laid, which is highly destructive and costly.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a silicate cover plate system for expansion joints. Background Technology

[0002] Calcium silicate board (silicic acid cover board), as a lightweight, high-strength, and durable building material, has an important application background in construction that spans expansion joints.

[0003] A search revealed Chinese patent CN101148913B, which discloses an exterior wall structure for reinforced concrete externally insulated buildings. This invention utilizes lightweight, wide-width, breathable, and heat-insulating composite panels, allowing for easy assembly of the formwork and jointing of the composite panels vertically and horizontally. This ensures ventilation at the joints of the composite panels and on the upper and lower parts of the window frames. Breathable grooves and thick-walled sections are alternately and parallelly arranged on the interlayer surfaces of the foamed plastic insulation layer. The formwork for the concrete exterior wall uses breathable, heat-insulating composite panels with thin, rigid sheets laminated to the interlayer surfaces. The insulation layers abut against each other at the horizontal joints of the composite panels, ensuring the abutment of the breathable groove groups. By applying conventional supports and seals to the horizontal joints, upward airflow can be achieved throughout the exterior wall, from the wall drainage system to the crossbeams.

[0004] Based on the above retrieval methods combined with existing technologies;

[0005] The aforementioned patent uses flat supports and sealant to fill the horizontal joints. However, the sealant is prone to aging, resulting in poor airtightness and an unattractive appearance. Furthermore, the composite board has a high production cost. If the ventilation grooves become blocked or the seal fails, the outer decorative layer must be removed and the composite board re-laid, which is highly destructive and costly. Therefore, it has certain limitations. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes a silicate cover plate system for crossing expansion joints, which satisfies the aesthetic requirements of silicate cover plates crossing expansion joints.

[0007] The technical solution to achieve the purpose of this utility model is: a silicate cover plate system across expansion joints, including a concrete floor slab and a wall, wherein a side keel is fixedly installed on one side of the wall, and a hoisting assembly is also included;

[0008] A leveling layer, which is fixedly installed at the bottom of a concrete floor slab;

[0009] The hoisting assembly includes an angle steel fixedly installed at the bottom of the leveling layer, and lifting rods are welded onto the angle steel.

[0010] Preferably, an expansion bolt is threaded between the angle steel and the concrete floor slab, a hanger is threaded at the bottom of the suspension rod, and a fastening bolt is threaded inside the hanger.

[0011] Preferably, the inner bottom of the first hanging piece is provided with a main keel, the second hanging piece is sleeved on the main keel, and secondary keels are provided on both sides of the main keel through the second hanging piece, with one end of the secondary keel being snapped onto the side keel.

[0012] Preferably, multiple T-shaped keels and cross bracing keels are fixedly installed on the secondary keel, with the cross bracing keels located on one side of the T-shaped keels.

[0013] Compared with existing technologies, the significant advantages of this invention are:

[0014] Firstly, the silicate cover plate used in this utility model has high density, strong impact resistance, is not easy to crack, and has a long service life. It adopts dual-line control and precise line laying and positioning, and forms a three-dimensional spatial benchmark by setting the line to effectively control the elevation error and ensure the flatness of the ceiling. The modular assembly process realizes dry construction and reduces pollution from wet operation. In addition, the process requirement that the screw cap exceeds the threaded rod by 10mm allows for thermal expansion and contraction deformation, preventing the connector from loosening.

[0015] Secondly, this utility model adopts a three-level force transmission system consisting of φ8 suspension rods, UC38 main keel, and I-shaped secondary keel to form a spatial truss structure, thereby improving the overall rigidity. The cross bracing keel is densely arranged to enhance in-plane stability. The edge keel is made of 25*25 painted keel with rust prevention treatment and cement nail anchoring to avoid the defects of wooden keel being prone to moisture deformation. Rubber shock-absorbing pads are set at the intersection of the main and secondary keels to reduce the transmission of structural noise.

[0016] This solution addresses the problems of existing horizontal joints being filled with flat supports and sealant, which are prone to aging, have poor airtightness, are unsightly, and have high production costs for composite panels. Furthermore, if the ventilation grooves become clogged or the seal fails, the outer finishing layer must be removed and the composite panels re-laid, which is highly destructive and costly. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a three-dimensional structural schematic diagram provided by this utility model;

[0019] Figure 2 This is a front structural diagram provided by this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure after installation provided by this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Concrete floor slab; 2. Leveling layer; 3. Wall; 4. Hanging rod; 5. T-shaped keel; 6. Main keel; 7. Secondary keel; 8. Horizontal bracing keel; 9. Hanger 1; 10. Hanger 2; 11. Fastening bolt; 12. Edge keel; 13. Angle steel; 14. Expansion bolt. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved silicate cover plate system for expansion joints. The technical solution of this utility model is as follows:

[0025] like Figures 1-3 As shown, a silicate cover plate cross-expansion joint system includes a concrete floor slab 1 and a wall 3. A side keel 12 is fixedly installed on one side of the wall 3. The side keel 12, together with the main and secondary keels 7, constitutes the skeleton structure of the ceiling. One end of the secondary keel 7 overlaps the side keel 12, thereby dispersing the stress on the ceiling and enhancing the overall stability. The system also includes a hoisting component.

[0026] Leveling layer 2 is fixedly installed at the bottom of concrete floor slab 1. Through fine leveling treatment, leveling layer 2 ensures that the joints of the surface material are flat and free of hollows, avoiding decorative defects caused by uneven base layer.

[0027] The hoisting assembly includes an angle steel 13 fixedly installed at the bottom of the leveling layer 2. The angle steel 13 is welded with a hoisting rod 4. The angle steel 13 improves the stability of the connection between the hoisting rod 4 and the floor slab, thus extending the overall service life of the structure.

[0028] Furthermore, expansion bolts 14 are threaded between the angle steel 13 and the concrete floor slab 1, and a hanger 9 is threaded at the bottom of the suspension rod 4. Fastening bolts 11 are installed inside the hanger 9 to ensure the firmness and stability of the connection between the suspension rod 4 and each component, and to improve the overall durability of the device.

[0029] Furthermore, a main keel 6 is provided at the bottom of the first hanging piece 9, and a second hanging piece 10 is fitted on the main keel 6. Secondary keels 7 are provided on both sides of the main keel 6 through the second hanging piece 10. One end of the secondary keel 7 is snapped onto the side keel 12. The first hanging piece 9 and the second hanging piece 10 are made of galvanized steel, which is moisture-resistant, rust-resistant, and can be repeatedly disassembled and repaired, reducing long-term maintenance costs.

[0030] Furthermore, multiple T-shaped keels 5 and cross bracing keels 8 are fixedly installed on the secondary keel 7. The cross bracing keels 8 are set on one side of the T-shaped keels 5. The cross bracing keels 8 form a stable grid-like frame by connecting the T-shaped keels 5 laterally, which distributes the load and enhances the overall structure's resistance to deformation.

[0031] The specific working method is as follows: First, mark the horizontal lines. Based on the floor level and the ceiling height designed for the room, mark the ceiling bottom level line around the perimeter of the wall, and mark the keel spacing lines on the wall. Next, install the suspension rods 4, using φ8 suspension rods 4, with one end welded to L30×340 angle steel 13, spaced 1200mm~1500mm apart. When encountering large ventilation ducts, angle steel 13 should be used as the main keel 6. Then install the main keel 6, using UC38 light steel keel, spaced 1200mm~1500mm apart, and connect it to the suspension rods 4 using the matching brackets 9. The screw cap should extend 10mm beyond the threaded rod and be pulled... After aligning the lines and ensuring consistent elevation, install the edge keel 12. Fix the painted keel with cement nails according to the elevation line on the wall, with a fixing interval of no more than 300mm. Before installation, the wall surface must be leveled with putty. Based on the specifications of the calcium silicate board, determine the spacing of the secondary keel 7 to be 600mm. The secondary keel 7 is attached to the main keel 6 via the hanger 2 10, and a 600mm horizontal bracing keel 8 is installed parallel to the main keel 6. Finally, install the calcium silicate board, using 600×600×15mm semi-embedded panels or other methods, and install them in sequence. Rough handling is strictly prohibited. Prevent contamination of the cover panel during installation. The calcium silicate board is installed on the secondary keel 7.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A silicate slab expansion joint system, comprising a concrete floor slab (1) and a wall (3), characterized in that: The wall (3) is fixedly installed with a side keel (12) on one side, and also includes; Leveling layer (2), which is fixedly installed at the bottom of concrete floor slab (1); The hoisting assembly includes an angle steel (13) fixedly installed at the bottom of the leveling layer (2), and a hoisting rod (4) is welded onto the angle steel (13).

2. The silicate cover plate system across expansion joints according to claim 1, characterized in that: A nut (14) is threaded between the angle steel (13) and the concrete floor slab (1), and a hanger (9) is provided at the bottom of the suspension rod (4), with a fastening bolt (11) installed on the internal thread of the hanger (9).

3. The silicate cover plate system across expansion joints according to claim 2, characterized in that: The inner bottom of the first hanging piece (9) is provided with a main keel (6), and the second hanging piece (10) is sleeved on the main keel (6). The two sides of the main keel (6) are provided with secondary keels (7) through the second hanging piece (10), and one end of the secondary keel (7) is snapped onto the side keel (12).

4. A silicate cover plate system across expansion joints according to claim 3, characterized in that: Multiple T-shaped keels (5) and cross bracing keels (8) are fixedly installed on the secondary keel (7), and the cross bracing keels (8) are located on one side of the T-shaped keels (5).

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