A connecting component for connecting a steel structure main body and a floor support plate and a construction method

Abstract

The application discloses a connecting component for connecting a steel structure main body and a floor support plate and a construction method, and belongs to the floor support plate structure construction field. The connecting component for connecting the steel structure main body and the floor support plate comprises a square column and an I-beam, the I-beam is fixed on one side of the square column, and further comprises a connecting component arranged on one side of the I-beam, the top end of the first end of the connecting component is flush with the top end of the I-beam, the connecting component is used for connecting and fixing the floor support plate, the second end of the connecting component is inserted into the to-be-connected end of the square column and extends to the outside of the square column, and the end of the second end of the connecting component is connected and fixed through bolts. The floor support plate and the square column are connected through corbels, the structure characteristics of the corbels are utilized, seamless connecting nodes are formed between the floor support plate and the square column, the technical problem that the floor support plate is cut on site, the intersecting edges of the floor support plate and the square column do not match, and slurry leakage is caused is solved.

Description

Technical Field

[0001] This invention belongs to the field of floor decking structure construction technology, specifically relating to a component for connecting the main steel structure and the floor decking and its construction method. Background Technology

[0002] Floor decking is a type of building product in which the reinforcing steel bars in a floor slab are welded into a steel truss in a factory, and the steel truss is fixedly connected to the bottom formwork to form an integrated bottom formwork and reinforcing steel bars. During construction, the floor decking is fixed between two load-bearing beams and concrete is poured directly. The bottom formwork bears the weight of the concrete, and the steel truss provides unsupported rigidity for the bottom formwork.

[0003] When ordinary beam-column components are cut on-site at the intersection of the floor deck and the steel column, it is easy to cause excessive gaps that lead to grout leakage. Therefore, there is an urgent need for a component for connecting the steel structure and the floor deck. Summary of the Invention

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A component for connecting a steel structure main body and a floor slab includes a square column and an I-beam, wherein the I-beam is fixed to one side of the square column, and further includes:

[0006] A connecting member is provided on one side of the I-beam. The top end of the first end of the connecting member is flush with the top end of the I-beam for connecting and fixing the floor deck. The second end of the connecting member is inserted into the end to be connected of the square column and extends to the outside of the square column. The end of the second end of the connecting member is connected and fixed by bolts.

[0007] Furthermore, the connecting member is a bracket, and the bracket includes:

[0008] End plate;

[0009] Three vertical ribs are spaced apart on one side of the end plate. The first end of each of the three vertical ribs is connected to the end plate, and the second end of each of the three vertical ribs at least partially penetrates the square column. The ends of the second ends of the three vertical ribs are fixed by bolts.

[0010] A corbel flange is provided on the side of the end plate away from the vertical rib, and the corbel flange is used to connect and fix the floor deck slab;

[0011] A triangular rib is provided at the middle position of the upper end of the cowl flange, and is used to connect the cowl flange and the end plate.

[0012] Furthermore, the upper side of the corbel flange is provided with at least a first concave-convex structure, and the lower side of the floor deck is provided with a second concave-convex structure that cooperates with the first concave-convex structure.

[0013] Furthermore, a fixing plate is provided on the side of the corbel flange near the end plate. The fixing plate is L-shaped, and its first end is fixed to the end plate by bolts. A gap is provided between the second end and the corbel flange, and the gap is greater than the thickness of the floor deck. The second end of the fixing plate, the floor deck, and the corbel flange are fixed by bolts.

[0014] Furthermore, the floor deck includes a base plate and a steel truss disposed on the base plate. The steel truss is provided with a plurality of fasteners, which are evenly spaced along the extension direction of the steel truss to fix the steel truss to the base plate.

[0015] Furthermore, the fastener includes a first fastening component and a second fastening component. The first fastening component is used to clamp one of the lower chord reinforcing bars in the steel truss, and the second fastening component is used to clamp the other lower chord reinforcing bar in the steel truss. The first fastening component and the second fastening component are interlocked and matched. The distance between the two lower chord reinforcing bars is matched by the proximity and distance between the first fastening component and the second fastening component.

[0016] Furthermore, the first fixing component includes:

[0017] The L-shaped horizontal plate has an arc-shaped groove on one side of its horizontal section that matches the diameter of the lower chord rib, and a groove on the side of its vertical section near the second fixing component; a toothed rack is provided in the groove.

[0018] A vertical plate is disposed at the lower end of the horizontal plate and is integrally formed with the horizontal plate. A spiral hole is provided at the lower end of the vertical plate.

[0019] A fastener having an external thread that mates with the helical hole;

[0020] The second fixing component has the same structure as the first fixing component and is configured for plug-in connection.

[0021] Furthermore, the fastener is a self-tapping screw.

[0022] Furthermore, the fastener also includes:

[0023] A gear is disposed within the groove, and the racks of the first fixing component and the second fixing component mesh with the gear.

[0024] A fixed shaft, the first end of which is located in the groove and fixedly connected to the gear, and the second end of which passes through the first fixed component and extends to the outside of the first fixed component;

[0025] A knob, which is fixedly connected to the second end of the fixed shaft.

[0026] A construction method for a connection component between a steel structure main body and a floor deck, employing any of the aforementioned connection components for the steel structure main body and the floor deck, the method comprising the following steps:

[0027] S10. Weld and fix the I-beam to the square column;

[0028] S20. Arrange the steel trusses of the floor deck evenly on the bottom slab;

[0029] S30. Place the arc-shaped slot of the first fixing component on one of the lower chord steel bars, and place the arc-shaped slot of the second fixing component on the other lower chord steel bar. Insert the slider into the corresponding slide rail. By rotating the knob, the gear is driven to rotate. The racks of the first fixing component and the racks of the second fixing component mesh with the gear, thereby driving the gear and realizing the opposite movement of the two racks. This drives the first fixing component and the second fastening component to move closer and further apart. Adjust according to the actual distance between the two lower chord steel bars. Finally, lock the base plate and the fixing component with self-tapping screws.

[0030] S40. Install the corbel on one side of the I-beam, insert the three vertical ribs into the connecting end of the square column, the corbel flange is used to connect and fix the floor deck, and fix the fixing plate, floor deck and corbel flange with bolts.

[0031] S50, The area of ​​the floor deck above the I-beam is fixed by connecting bolts;

[0032] S60. Concrete is poured on top of the floor deck to form a cast-in-place floor slab layer.

[0033] Beneficial effects:

[0034] The present invention connects the floor decking and the square column through corbels. By utilizing the structural characteristics of the corbels, a seamless connection node is formed between the floor decking and the square column. This solves the technical problem of grout leakage caused by the mismatch between the edges of the floor decking and the intersection of the square column when the floor decking is cut on site.

[0035] This invention uses a concave-convex structure to make the floor decking and the bracket flange interlock, ensuring a tight seal between the floor decking and the bracket.

[0036] This invention connects the bottom formwork of the floor slab to the steel truss using fasteners, and the two lower chord steel bars are secured in the two arc-shaped slots of the fasteners, fixing the distance between the two lower chord steel bars. This solves the technical problem of subsequent disassembly difficulties caused by the opposite movement tendency of the two lower chord steel bars under the gravity of concrete. Through the relative movement between the second and first fixing components, the distance between the two lower chord steel bars can be adjusted according to actual use, making it highly practical. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 This is a top view of the floor decking in this invention;

[0039] Figure 3 This is a schematic diagram of the cross-section of the floor decking in this invention;

[0040] Figure 4 This is a schematic diagram of the connecting components in this invention;

[0041] Figure 5 This is a schematic diagram of the fastener structure in this invention;

[0042] Figure 6 This is a top view of the fastener in this invention;

[0043] Among them, 1. Square column; 2. I-beam; 3. Floor deck; 4. Fixing plate; 5. First concave-convex structure; 6. Corbel flange; 7. Vertical rib; 8. Top chord; 9. Bottom chord; 10. Fastener; 101. First fixing component; 102. Second fixing component; 103. Fastener; 104. Groove; 105. Gear; 106. Rack; 107. Arc-shaped slot; 108. Knob; 11. Connecting bolt. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0045] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," "outer," and "one side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Example 1

[0047] refer to Figures 1-6 A component for connecting a steel structure main body and a floor deck includes a square column 1 and an I-beam 2, the I-beam 2 being fixed to one side of the square column 1, and further includes:

[0048] The connecting component is located on one side of the I-beam 2. The top end of the first end of the connecting component is flush with the top end of the I-beam 2 and is used to connect and fix the floor deck 3. The second end of the connecting component is inserted into the end to be connected of the square column 1 and extends to the outside of the square column 1. The end of the second end of the connecting component is connected and fixed by bolts.

[0049] In this invention, the floor deck 3 and the square column 1 are connected by a corbel. By utilizing the structural characteristics of the corbel, a seamless connection node is formed between the floor deck 3 and the square column 1. This solves the technical problem of grout leakage caused by the mismatch between the edges of the floor deck 3 and the intersection edges of the square column 1 when the floor deck 3 is cut on site.

[0050] Example 2

[0051] This embodiment makes further modifications based on embodiment 1.

[0052] In this embodiment, the connecting member is a bracket, which includes:

[0053] End plate;

[0054] Three vertical ribs 7 are spaced apart on one side of the end plate. The first end of each of the three vertical ribs 7 is connected to the end plate. The second end of each of the three vertical ribs 7 at least partially penetrates the square column 1, and the ends of the second ends of the three vertical ribs 7 are fixed by bolts.

[0055] Bracket flange 6 is located on the side of the end plate away from the vertical rib 7. Bracket flange 6 is used to connect and fix the floor deck 3.

[0056] The triangular rib is located at the middle of the upper end of the corbel flange 6 and is used to connect the corbel flange 6 and the end plate.

[0057] In practice, the vertical ribs 7 are inserted into the three corresponding through slots of the square column 1 and extended to the outside of the square column 1. The ends of the vertical ribs 7 are connected and fixed by bolts, so that the bracket is fixed together with the square column 1.

[0058] In this embodiment, the upper side of the corbel flange 6 is provided with at least a first concave-convex structure 5, and the lower side of the floor deck 3 is provided with a second concave-convex structure that cooperates with the first concave-convex structure 5.

[0059] In practice, the first and second concave-convex structures 5 and 6 cooperate with each other to make the floor deck 3 and the corbel flange 6 tightly interlock, ensuring a tight seal between the floor deck 3 and the corbel.

[0060] In this embodiment, a fixing plate 4 is provided on the side of the corbel flange 6 near the end plate. The fixing plate 4 is L-shaped, and the first end is fixed to the end plate by bolts. A gap is provided between the second end and the corbel flange 6. The gap is greater than the thickness of the floor deck 3. The second end of the fixing plate 4, the floor deck 3 and the corbel flange 6 are fixed by bolts.

[0061] In practice, the floor deck 3 is inserted into the gap between the second end of the fixing plate 4 and the corbel flange 6, and fixed with bolts to connect the floor deck 3 and the corbel flange 6 into an integral structure.

[0062] In this embodiment, the floor deck 3 includes a base plate and a steel truss provided on the base plate. Multiple fasteners 10 are provided on the steel truss. The multiple fasteners 10 are evenly spaced along the extension direction of the steel truss and are used to fix the steel truss and the base plate.

[0063] In practice, multiple connecting bolts 11 are installed on the top of the I-beam 2, and the floor deck is erected on the upper part of the I-beam and fixed by the connecting bolts 11.

[0064] In practice, the steel truss includes an upper chord steel bar 8, a lower chord steel bar 9, and web steel bars. One upper chord steel bar 8 and two lower chord steel bars 9 are fixed together by several web steel bars. The upper chord steel bar 8 and the two lower chord steel bars 9 are arranged in parallel and form a triangular structure.

[0065] In this embodiment, the fastener 10 includes a first fastening component 101 and a second fastening component 102. The first fastening component 101 is used to clamp one of the lower chord reinforcing bars in the steel truss, and the second fastening component 102 is used to clamp the other lower chord reinforcing bar in the steel truss. The first fastening component 101 and the second fastening component 102 are connected by plugging and fitting together. The distance between the two lower chord reinforcing bars is matched by the proximity and distance between the first fastening component 101 and the second fastening component 102.

[0066] In this embodiment, the first fixing component 101 includes:

[0067] The L-shaped horizontal plate has an arc-shaped groove 107 on one side of the horizontal section that matches the diameter of the lower chord 9, and a groove 104 on the side of the vertical section of the L-shaped horizontal plate near the second fixing component 102; a toothed rack is provided in the groove 104.

[0068] A vertical plate is set at the lower end of the horizontal plate and is integrally formed with the horizontal plate. The lower end of the vertical plate is provided with a spiral hole.

[0069] Fastener 103, fastener 103 is provided with external thread that mates with the spiral hole;

[0070] The second fixing component 102 has the same structure as the first fixing component 101 and is configured to be inserted into each other.

[0071] In this embodiment, fastener 103 is a self-tapping screw.

[0072] In this embodiment, the fastener 10 further includes:

[0073] Gear 105, the gear 105 is disposed in the groove 104, and the rack of the first fixing component and the rack of the second fixing component both mesh with the gear;

[0074] A fixed shaft is provided, with its first end located in the groove 104 and fixedly connected to the gear 105. The second end of the fixed shaft passes through the first fixed component 101 and extends to the outside of the first fixed component 101.

[0075] Knob 108 is fixedly connected to the second end of the fixed shaft.

[0076] In specific implementation, a slider is provided on the L-shaped horizontal plate of the first fixing component 101, the slider is located at the end of the horizontal section, and a slide is provided on the vertical section of the L-shaped horizontal plate of the first fixing component 101. The slider provided on the L-shaped horizontal plate of the first fixing component 101 and the slide provided on the L-shaped horizontal plate of the second fixing component 102 are interlocked and cooperated with each other.

[0077] Preferably, the slide is a dovetail groove to increase the stability of the structure.

[0078] In practice, the arc-shaped slot 107 of the first fixing component 101 is placed on one of the lower chord steel bars, and the arc-shaped slot 107 of the second fixing component 102 is placed on the other lower chord steel bar. The slider is inserted into the corresponding slide rail. By rotating the knob 108, the gear 105 is driven to rotate. The racks of the first fixing component 101 and the second fixing component 102 mesh with the gear 105, thereby driving the gear 105 to move in opposite directions. This causes the first fixing component 101 and the second fastening component 102 to move closer and further apart. The distance between the two lower chord steel bars 9 is adjusted according to the actual distance between them to increase practicality. Finally, the base plate and the fixing component are locked together with self-tapping screws.

[0079] This invention connects the bottom formwork of the floor deck 3 to the steel truss using a fastener 10, and the two lower chord steel bars 9 are secured in the two arc-shaped slots of the fastener, fixing the distance between the two lower chord steel bars 9. This solves the technical problem that the two lower chord steel bars 9 tend to move in opposite directions under the gravity of the concrete, making subsequent disassembly difficult. Through the relative movement between the second fixing component 102 and the first fixing component 101, the distance between the two lower chord steel bars 9 can be adjusted in actual use, making it highly practical.

[0080] Example 3

[0081] This embodiment discloses a construction method for a connection component between a steel structure main body and a floor deck slab. Using the connection component provided in Embodiment 2, the construction method includes the following steps:

[0082] S10. Weld and fix the I-beam 2 to the square column 1;

[0083] S20. Arrange the steel trusses of the floor deck evenly on the bottom slab;

[0084] S30. Place the arc-shaped slot 107 of the first fixing component 101 on one of the lower chord steel bars, and place the arc-shaped slot 107 of the second fixing component 102 on the other lower chord steel bar. Insert the slider into the corresponding slide rail. By rotating the knob 108, drive the gear 105 to rotate. The racks of the first fixing component 101 and the second fixing component 102 mesh with the gear 105, thereby driving the gear 105 to achieve the opposite movement of the two racks, driving the first fixing component 101 and the second fastening component 102 to move closer and further apart. Adjust according to the actual distance between the two lower chord steel bars 9. Finally, lock the base plate and the fixing component with self-tapping screws.

[0085] S40. Install the corbel on one side of the I-beam 2, insert the three vertical ribs 7 into the end to be connected of the square column 1, the corbel flange is used to connect and fix the floor deck 3, and fix the fixing plate 4, the floor deck 3 and the corbel flange 6 with bolts.

[0086] S50, located in the area above the I-beam of the floor deck 3, is fixed by connecting bolts 11.

[0087] S60. Concrete is poured on top of the floor deck to form a cast-in-place floor slab layer.

[0088] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A component for connecting a steel structure main body and a floor slab, comprising a square column and an I-beam, wherein the I-beam is fixed to one side of the square column, characterized in that, Also includes: A connecting member is provided on one side of the I-beam. The top end of the first end of the connecting member is flush with the top end of the I-beam for connecting and fixing the floor deck. The second end of the connecting member is inserted into the end to be connected of the square column and extends to the outside of the square column. The end of the second end of the connecting member is connected and fixed by bolts. The connecting member is a cow leg, and the cow leg includes: End plate; Three vertical ribs are spaced apart on one side of the end plate. The first end of each of the three vertical ribs is connected to the end plate, and the second end of each of the three vertical ribs at least partially penetrates the square column. The ends of the second ends of the three vertical ribs are fixed by bolts. A corbel flange is provided on the side of the end plate away from the vertical rib, and the corbel flange is used to connect and fix the floor deck slab; A triangular rib is provided at the middle position of the upper end of the cowl flange, and is used to connect the cowl flange and the end plate.

2. The component for connecting the main steel structure and the floor decking according to claim 1, characterized in that, The upper side of the corbel flange is provided with a first concave-convex structure, and the lower side of the floor deck is provided with a second concave-convex structure that cooperates with the first concave-convex structure.

3. The component for connecting the main steel structure and the floor decking according to claim 2, characterized in that, A fixing plate is provided on the side of the corbel flange near the end plate. The fixing plate is L-shaped, and its first end is fixed to the end plate by bolts. A gap is provided between the second end and the corbel flange. The gap is greater than the thickness of the floor deck. The second end of the fixing plate, the floor deck, and the corbel flange are fixed by bolts.

4. The component for connecting the main steel structure and the floor decking according to claim 1, characterized in that, The floor deck includes a base plate and a steel truss installed on the base plate. The steel truss is provided with a plurality of fasteners, which are evenly spaced along the extension direction of the steel truss to fix the steel truss to the base plate.

5. The component for connecting the main steel structure and the floor decking according to claim 4, characterized in that, The fastener includes a first fastening component and a second fastening component. The first fastening component is used to clamp one of the lower chord reinforcing bars in the steel truss, and the second fastening component is used to clamp the other lower chord reinforcing bar in the steel truss. The first fastening component and the second fastening component are interlocked and matched. The distance between the two lower chord reinforcing bars is matched by the proximity and distance between the first fastening component and the second fastening component.

6. The component for connecting the main steel structure and the floor slab according to claim 5, characterized in that, The first fixing component includes: The L-shaped horizontal plate has an arc-shaped groove on one side of its horizontal section that matches the diameter of the lower chord rib, and a groove on the side of its vertical section near the second fixing component; a toothed rack is provided in the groove. A vertical plate is disposed at the lower end of the horizontal plate and is integrally formed with the horizontal plate. A spiral hole is provided at the lower end of the vertical plate. A fastener having an external thread that mates with the helical hole; The second fixing component has the same structure as the first fixing component and is configured for plug-in connection.

7. The component for connecting the main steel structure and the floor decking according to claim 6, characterized in that, The fastener is a self-tapping screw.

8. The component for connecting the main steel structure and the floor slab according to claim 6, characterized in that, The fastener also includes: A gear is disposed within the groove, and the racks of the first fixing component and the second fixing component mesh with the gear. A fixed shaft, the first end of which is located in the groove and fixedly connected to the gear, and the second end of which passes through the first fixed component and extends to the outside of the first fixed component; A knob, which is fixedly connected to the second end of the fixed shaft.

9. A construction method for connecting steel structure main body and floor deck slab, characterized in that, The method using the connection component for connecting the steel structure main body and the floor deck as described in any one of claims 5 to 8 includes the following steps: S10. Weld and fix the I-beam to the square column; S20. Arrange the steel trusses of the floor deck evenly on the bottom slab; S30. Place the arc-shaped slot of the first fixing component on one of the lower chord steel bars, and place the arc-shaped slot of the second fixing component on the other lower chord steel bar. Insert the slider into the corresponding slide rail. By rotating the knob, the gear is driven to rotate. The racks of the first fixing component and the racks of the second fixing component mesh with the gear, thereby driving the gear and realizing the opposite movement of the two racks. This drives the first fixing component and the second fastening component to move closer and further apart. Adjust according to the actual distance between the two lower chord steel bars. Finally, lock the base plate and the fixing component with self-tapping screws. S40. Install the corbel on one side of the I-beam, insert the three vertical ribs into the connecting end of the square column, the corbel flange is used to connect and fix the floor deck, and fix the fixing plate, floor deck and corbel flange with bolts. S50, The area of ​​the floor deck above the I-beam is fixed by connecting bolts; S60, Concrete is poured on top of the floor deck to form a cast-in-place floor slab layer.

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