Cold connection shearing force system and application method thereof

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a cold connection shearing force system and an application method thereof. The shearing force system comprises an L-shaped shearing force piece, shooting nails and a nail shooting device; compared with a welding method adopted in the prior art, cold connection is adopted in the shearing force piece of the shearing force system, the shearing force piece can be fixed to the profiled steel sheet through cooperation of the nail shooting device and the shooting nails, the shearing force piece is convenient and easy to install, people do not need to work with certificates, and any constructor is trained for a short time; the construction operation of the shearing force piece fixing system can be mastered; the shearing force system is simple in structure and capable of being rapidly installed, a power source is not needed, and the machining cost is greatly saved.

Description

Technical Field

[0001] The present invention relates to the field of construction engineering, and more particularly to a cold connection shear system and an application method thereof. Background Art

[0002] The traditional shear system is a connection system widely used in steel-concrete composite structures. It makes the composite structure have better component stiffness, increases torsional and overturning resistance (compared with steel structures). It uses corrugated thin steel plates with alternating concave and convex shapes as lining plates and cast-in-place concrete to support them on steel beams to form an integral floor slab, which is mainly composed of three parts: floor layer, composite slab and steel beam.

[0003] During the construction of the traditional shear system, welding technicians need to use welding equipment to weld the studs to the corrugated steel plate (such as Figure 1 It has the following disadvantages: 1. Extremely high professional requirements: Only professional construction personnel can operate the stud welding machine and welding gun; 2. Strict weather requirements: The requirements for climatic conditions are very stringent - the bolts need to be pre-insulated, the steel beams need to be pre-rusted and painted, and even the corrugated steel plates need to be pre-punched, and impurities such as dust on site need to be cleaned; 3. Unable to visually inspect: The coating or impurities on the surface of the corrugated steel plate or steel beam will affect the quality of welding, and the installation quality cannot be visually inspected; 4. Strict current requirements: The site requires high and stable current - construction personnel must have rich experience in adjusting the current; it is common for excessive current to cause paint on steel beams to burn, which in turn causes corrugated steel plates to burn and bolts to have gaps, leading to leakage. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a cold connection shear system and an application method thereof that solve the above technical problems.

[0005] To achieve the above object, the present invention provides the following technical solutions: A cold connection shear system, comprising: The shear member includes a bearing part and a supporting part. The bearing part can be matched with the corrugated steel plate, and the supporting part can be used for steel bar support. Nails are used to fix the bearing part to the corrugated steel plate. A nail gun is used to drive nails into corrugated steel sheets.

[0006] Furthermore, the shear member is L-shaped and integrally formed, the bearing portion is provided with fixing holes corresponding to the nails, and the top of the supporting portion is provided with a mounting groove that can cooperate with the steel bar.

[0007] Furthermore, the nail includes a nail rod, a limiting ring and a positioning ring. The nail rod consists of a nail head and a rod body. The limiting ring and the positioning ring are placed in sequence in the length direction of the rod body, and the rod body, the limiting ring and the positioning ring are coaxial. The limiting ring is close to the nail head, and the positioning ring is far away from the nail head and the positioning ring can be moved under force.

[0008] Furthermore, the cross-sections of the bearing part and the supporting part are both U-shaped, the bearing part has an upwardly raised protrusion, the fixing hole is opened on the protrusion, the limiting ring and the positioning ring are both open and cooperate with each other, and the positioning ring cooperates with the protrusion.

[0009] Furthermore, the cross-sections of the rod body and the nail head are both circular, the diameter of the nail head is larger than the diameter of the rod body, and the diameter of the rod body gradually decreases in the direction from the limiting ring to the positioning ring.

[0010] Furthermore, the side wall of the rod body is provided with anti-skid patterns, and the anti-skid patterns cooperate with the positioning ring.

[0011] A method for applying a cold connection shear system comprises the following steps: (1) Prepare shear members, nails and nail guns; (2) Place the shear member at the predetermined position on the corrugated steel plate; (3) Install the nails into the nail gun, and then adjust the position of the nail gun so that the nails correspond to the fixing holes; (4) Use a nail gun to drive nails into the corrugated steel sheet.

[0012] By adopting the above technical solution, compared with welding in the prior art, the beneficial effects of the present invention are: 1. The present invention adopts cold connection, and the shear member can be fixed on the corrugated steel plate by a nail shooter and a gun, so there is no need to fix the bolts on the corrugated steel plate by welding; 2. The installation of the shear member is convenient and simple. No personnel need to be certified to work. Any construction worker can master the construction operation of the shear member fixing system after a short period of training; 3. The present invention has a simple structure, can be quickly installed, does not require a power source, and greatly saves processing costs; 4. The invention is relatively small, easy to carry and transport, and is also simple and convenient to construct and install, and is not easily affected by outdoor construction conditions; 5. The present invention does not require wire arrangement, and the weather influence factor can be ignored. The shear member can be fixed in various climatic conditions, with the ambient temperature as low as -20°C, rainy days, foggy days, damp days, dust, frost, and condensation environments, without causing potential safety hazards; 6. The present invention fixes the shear members by shear nails, has anti-seismic and anti-fatigue properties, and the construction results are more intuitive and easier to conduct quality inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the application of the traditional shear system.

[0014] Figure 2 It is a structural schematic diagram of the shear system application of the present invention.

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the shear member.

[0016] Figure 4 It is the structural diagram of the shear member.

[0017] Figure 5 Schematic diagram of the cross-sectional structure of the shear stud.

[0018] Figure 6 This is a schematic diagram of the shear system structure. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] The cold connection shear system comprises a shear member 1, a nail 2 and a nail driver 3; The bolt connection method currently available in the market is welding connection, while the shear member 1 of the shear system of the present invention adopts cold connection, which can be fixed on the corrugated steel plate by the cooperation of the nail gun 3 and the nail 2.

[0022] like Figure 3 As shown, the shear member 1 is L-shaped and integrally formed, and the shear member 1 includes a bearing portion 11 and a supporting portion 12. The bearing portion 11 can be matched with the corrugated steel plate, and the bearing portion 11 has a fixing hole 101 corresponding to the nail 2, and the top of the supporting portion 12 has a mounting groove 102 that can be matched with the steel bar; like Figure 4As shown, the cross-sections of the bearing portion 11 and the supporting portion 12 are both U-shaped, so that the shear member 1 can withstand greater stress; the bearing portion 11 has an upwardly protruding protrusion 11a, the fixing hole 101 is opened on the protrusion 11a, and the positioning ring 23 corresponds to the protrusion 11a. When the shear nail is nailed into the corrugated steel plate, the shear nail is impacted by the nail shooter 3, and the open positioning ring 23 can fit with the protrusion 11a, so that the shear nail is nailed into the corrugated steel plate more firmly.

[0023] like Figure 5 As shown, the nail 2 includes a nail rod 21, a limiting ring 22, and a positioning ring 23. The nail rod 21 is composed of a nail head 21a and a rod body 21b. The limiting ring 22 and the positioning ring 23 are sequentially arranged in the length direction of the rod body 21b. The limiting ring 22 and the positioning ring 23 are both open and cooperate with each other, and the rod body 21b, the limiting ring 22 and the positioning ring 23 are coaxial. The limiting ring 22 is close to the nail head 21a and is fixed on the rod body 21b, and the positioning ring 23 is far away from the nail head 21a. The positioning ring 23 and the rod body 21b are interference fit or the positioning ring 23 and the rod body 21b are point connected. The positioning ring 23 can move on the rod body 21b when subjected to force; the setting of the limiting ring 22 and the positioning ring 23 can achieve the positioning function, so that the nail 2 is stably fixed in the nail shooting device 3; after the positioning ring 23 is subjected to force, it fits with the raised portion 11a on the shear member 1, which can prevent the limiting ring 22 from being hit and damaged by the raised portion 11a; The cross-sections of the rod body 21b and the nail head 21a are both circular, the diameter of the nail head 21a is larger than the diameter of the rod body 21b, and the diameter of the rod body 21b gradually decreases in the direction from the limiting ring 22 to the positioning ring 23; when the positioning ring 23 is subjected to the force on the rod body 21b to move toward the limiting ring 22, the closer it is to the limiting ring 22, the greater the external force required, so that when the nail 2 is nailed into the corrugated steel plate by the nail driver 3, the positioning ring 23 can greatly reduce the impact force received, ensuring that the limiting ring 22 is not easily damaged by impact; Moreover, the diameter of the nail head 21a is much larger than the diameter of the limiting ring 22, so that even if the limiting ring 22 is disengaged by impact and moves on the rod body 21b, the nail head 21a can stably limit the limiting ring 22 on the rod body 21b, thereby ensuring that the nail 2 can stably fix the shear member 1 on the corrugated steel plate; the side wall of the rod body 21b is provided with anti-slip grooves, and the anti-slip grooves cooperate with the positioning ring 23 to increase the friction between the rod body 21b and the positioning ring 23, and further enhance the effect of the positioning ring 23 on reducing the impact force.

[0024] The application method of the cold connection shear system comprises the following steps: (1) Prepare shear members, nails and nail guns; (2) Place the shear member at the predetermined position on the corrugated steel plate; (3) The nails are loaded into the nail gun, and the shear nails are placed flush. The nail gun is provided with a piston structure. Then the position of the nail gun is adjusted so that the nails correspond to the fixing holes. When the firing pin strikes the nail bullet, the gunpowder burns to generate high-pressure gas that acts on the piston. The piston then pushes the nail to move, and the fixed parts are nailed into the substrate to be fixed. Figure 6 As shown; (4) Use a nail gun to drive nails into the corrugated steel sheet.

[0025] Compared with traditional electric welding construction, the construction method of the present invention is simpler and easy for construction personnel to quickly master; and the construction method is not easily affected by the ambient weather. Under various climatic conditions, the ambient temperature is as low as -20°C, and the shear members can be fixed in rainy, foggy, humid, dusty, frosty, and condensation environments, without causing safety hazards.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A cold connection shear system, characterized in that: include The shear member includes a bearing part and a supporting part. The bearing part can be matched with the corrugated steel plate, and the supporting part can be used for steel bar support. Nails are used to fix the bearing part to the corrugated steel plate. A nail gun is used to drive nails into corrugated steel sheets.

2. A cold connection shear system according to claim 1, characterized in that: The shear member is L-shaped and integrally formed, the bearing portion is provided with fixing holes corresponding to the nails, and the top of the supporting portion is provided with a mounting groove that can cooperate with the steel bar.

3. A cold connection shear system according to claim 2, characterized in that: The nailing comprises a nail rod, a limiting ring and a positioning ring, wherein the nail rod comprises a nail head and a rod body. The limiting ring and the positioning ring are sequentially arranged in the length direction of the rod body, and the rod body, the limiting ring and the positioning ring are coaxial, the limiting ring is close to the nail head, the positioning ring is far away from the nail head and the positioning ring can move under force.

4. A cold connection shear system according to claim 3, characterized in that: The cross-sections of the bearing part and the supporting part are both U-shaped, the bearing part is provided with a protruding part that bulges upward, the fixing hole is provided on the protruding part, the limiting ring and the positioning ring are both open and cooperate with each other, and the positioning ring cooperates with the protruding part.

5. A cold connection shear system according to claim 4, characterized in that: The cross sections of the rod body and the nail head are both circular, the diameter of the nail head is larger than the diameter of the rod body, and the diameter of the rod body gradually decreases in the direction from the limiting ring to the positioning ring.

6. A cold connection shear system according to claim 5, characterized in that: The side wall of the rod body is provided with anti-skid patterns, which cooperate with the positioning ring.

7. The method for applying a cold connection shear system according to claim 1, 2, 3, 4, 5, or 6, characterized in that: The following steps are involved: (1) Prepare shear members, nails and nail guns; (2) Place the shear member at the predetermined position on the corrugated steel plate; (3) Install the nails into the nail gun, and then adjust the position of the nail gun so that the nails correspond to the fixing holes; (4) Use a nail gun to drive nails into the corrugated steel sheet.

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