Ribbed C-shaped steel prestress composite floor slab

By designing the lifting device and reinforcement device of ribbed C-shaped steel prestressed overlapping floor slabs on traditional prestressed overlapping floor slabs, the problem of unstable hook position during the lifting process is solved, and the stiffness and safety of the floor slabs are improved.

CN222614651UActive Publication Date: 2025-03-14WUHAN HUAJIANG XINGFU PREFABRICATED CONSTR CO LTD
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Patent Information

Application Number
CN202420490403.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-14
Publication Date
2025-03-14
Estimated Expiration
2034-03-14

AI Technical Summary

Technical Problem

During the lifting process, traditional prestressed overlapping floor slabs are large in weight and unstable in the hook position, which easily leads to position deviation, which increases safety hazards for workers.

Method used

A prestressed overlapping floor slab of ribbed C-shaped steel is designed, adopting a lifting device and reinforcement device. The lifting device includes C-shaped plates, distributed steel bars, supporting steel bars and lifting reinforced steel bars. These steel bars are fixedly connected through welding to form a stable lifting structure. The reinforcement device improves the stiffness of the floor slab through additional stiffness parts and L-shaped plates, through threaded connections and chute design.

Benefits of technology

Through stable lifting devices and reinforcement devices, the lifting hook position is ensured to be fixed, avoid position deviation, reduce safety hazards for workers, and improve the stiffness of the floor slabs to ensure that there is no cracking during transportation and lifting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ribbed C-shaped steel prestress composite floor slab which comprises a concrete bottom plate. The outer walls of the prestressed bars are fixedly connected with the inner wall of the concrete bottom plate; the hoisting device is used for hoisting a floor slab, and the reinforcing device is used for improving the rigidity of the floor slab. According to the device, a hoisting device is arranged, supporting steel bars are fixedly connected with prestressed stress bars through welding, C-shaped plates are fixedly connected with distribution steel bars through welding, hoisting reinforcing steel bars, fixing steel bars and the distribution steel bars are fixedly connected through welding, finally prepared concrete grout is poured into the device, and after concrete is coagulated, the concrete grout is poured into the device; the lifting hook is clamped into the clamping groove in the arc-shaped plate, so that the lifting hook hooks the lifting reinforcing steel bar to complete lifting operation, the position of the lifting hook is clamped and fixed, the position of the lifting hook is prevented from deviating, and potential safety hazards of operators are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of building materials, in particular to a ribbed C-shaped steel prestressed composite floor slab. Background Art

[0002] Among prefabricated building components, composite floor slabs are widely used. Traditional prestressed composite floor slabs mostly use cement rectangular ribs. Under the background of the rapid development of my country's construction industry, the issue of ecological environmental protection has gradually attracted people's attention, and prefabricated buildings have come into being. The so-called prefabricated building refers to a building assembled on site from prefabricated parts and components. It includes several types such as block buildings and plate buildings. It has the characteristics of energy saving, environmental protection, and short construction period, which is more in line with the requirements of ecological environmental protection in the development of contemporary society.

[0003] However, in the prior art, during the use of traditional prestressed composite slabs, due to the heavy weight of the slabs themselves, the ribs are directly lifted during lifting. If the impact of external force pushes the lifted slab to turn, the position of the lifting hook will be unstable, causing the lifting hook to shift on the steel bar, increasing the safety hazard to the operators. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a ribbed C-shaped steel prestressed composite floor slab, comprising: a concrete bottom plate; prestressed force bars, the outer wall of the prestressed force bars is fixedly connected to the inner wall of the concrete bottom plate; the composite floor slab also includes: a lifting device, the lifting device is used to lift the floor slab, the outer side of the lifting device is fixedly connected to the inner cavity of the concrete bottom plate; a reinforcement device, the reinforcement device is used to increase the rigidity of the floor slab, the bottom of the reinforcement device is fixedly connected to the top of the concrete bottom plate; the lifting device comprises a C-shaped plate, the inner wall of the C-shaped plate is fixedly connected with distributed steel bars, and the outer side of the distributed steel bars is fixedly connected with Support steel bars, the outer side of the support steel bars are in contact with the inner side of the C-shaped plate, the outside of the C-shaped plate is provided with lifting reinforcement steel bars, the outer wall of the lifting reinforcement steel bars is fixedly connected with fixed steel bars, the inner wall of the lifting reinforcement steel bars is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with an arc plate, a slot is opened in the wall of the arc plate, the C-shaped plate is passed through the distribution steel bars, the top of the C-shaped plate is buckled onto the support steel bars, the support steel bars are fixedly connected to the prestressed force bars by welding, the C-shaped plate is fixedly connected to the distribution steel bars by welding, after the concrete is solidified, the lifting hook is inserted into the slot on the arc plate, so that the lifting hook hooks the lifting reinforcement steel bars on the connecting plate to complete the lifting operation.

[0005] Preferably, the outer side of the C-shaped plate is fixedly connected to the inner wall of the concrete base plate, a pipeline hole is opened in the wall of the C-shaped plate, the outer wall of the supporting steel bar is fixedly connected to the inner wall of the concrete base plate, and the outer wall of the distribution steel bar is fixedly connected to the inner wall of the concrete base plate. Secondly, the lifting reinforcement steel bars, fixed steel bars and distribution steel bars on the lifting device are fixedly connected by welding, and finally the prepared concrete slurry is poured in.

[0006] Preferably, the inner wall of the concrete base plate is fixedly connected to the outer wall of the hoisting reinforcement steel bars, the outer wall of the fixed steel bars is fixedly connected to the inner wall of the concrete base plate, and the outer wall of the fixed steel bars is fixedly connected to the outer wall of the distribution steel bars. The prestressed force bars and the distribution steel bars are cross-arranged in the concrete base plate. Since the concrete base plate is long from top to bottom and wide from left to right, the prestressed force bars are arranged at intervals along the width direction of the concrete base plate, and the distribution steel bars are arranged at intervals along the length direction of the concrete base plate.

[0007] Preferably, the reinforcement device includes an additional stiffener, both sides of which are fixedly connected with L-shaped plates, and the L-shaped plates are linearly arranged along the outer wall of the additional stiffener, the inner wall of the additional stiffener is threadedly connected with fastening bolts through threaded holes, and the threaded holes are opened in the wall of the additional stiffener, the stiffness of the floor slab is improved by the reinforcement device, so that the additional stiffener fits tightly against the concrete base slab, thereby improving the stiffness of the composite floor slab, the fastening bolts are tightened and passed through the slide groove on the L-shaped plate, and then inserted into the threaded holes, and the fastening bolts pass through the L-shaped plate and are fixed to the concrete base slab.

[0008] Preferably, the outer wall of the fastening bolt is threadedly connected to the inner wall of the concrete base plate, the bottom of the additional rigidifier is fixedly connected to the top of the concrete base plate, a through hole is provided in the wall of the additional rigidifier, the outer wall of the L-shaped plate is fixedly connected to the outer wall of the fastening bolt through a slide groove, and the slide groove is provided on the L-shaped plate, the bottom of the L-shaped plate is fixedly connected to the top of the concrete base plate, the additional rigidifier is fitted to the surface of the concrete base plate through the L-shaped plate, so that the additional rigidifier and the concrete base plate are integrated, the slide groove on the L-shaped plate is set as a strip hole, the position of the bolt is convenient to adjust through the strip hole, and the additional rigidifier is convenient to install and remove, the rigidity of the floor slab is improved by means of the additional rigidifier, and it is ensured that there is no cracking during the manufacturing demoulding, transportation and hoisting processes, and the pipeline can be passed through the pipeline hole and the through hole for pipe threading.

[0009] The beneficial effects of the utility model are as follows:

[0010] 1. The utility model sets a lifting device, fixes the support steel bars and the prestressed force bars by welding, fixes the C-shaped plate and the distribution steel bars by welding, then fixes the lifting reinforcement steel bars, the fixed steel bars and the distribution steel bars by welding, and finally pours the prepared concrete slurry. After the concrete solidifies, the lifting hook is inserted into the groove on the arc plate so that the lifting hook hooks the lifting reinforcement steel bars to complete the lifting operation, and the position of the lifting hook is fixed by clamping to avoid the position of the hook from being offset, thereby reducing the safety hazards of the operators.

[0011] 2. The utility model sets a reinforcement device, tightens the fastening bolts through the slide groove on the L-shaped plate, and then inserts them into the threaded holes. The fastening bolts pass through the L-shaped plate and are fixed to the concrete base plate. The additional rigidity member is fitted with the surface of the concrete base plate through the L-shaped plate, so that the additional rigidity member and the concrete base plate are integrated. The slide groove on the L-shaped plate is set as a strip hole, and the position of the bolt is easily adjusted through the strip hole, which facilitates the installation and removal of the additional rigidity member. The rigidity of the floor slab is improved by means of the additional rigidity member, ensuring that it will not crack during the manufacturing demoulding, transportation, and hoisting processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the lifting device of the utility model and its exterior;

[0015] Figure 4 It is a schematic diagram of the structure of the utility model at A;

[0016] Figure 5 It is a structural schematic diagram of the reinforcement device of the utility model;

[0017] Figure 6 It is a top view of the reinforcement device of the utility model;

[0018] Figure 7 It is a structural schematic diagram of the L-shaped plate of the utility model and its exterior.

[0019] In the figure: 1. Concrete base plate; 2. Prestressed reinforcement bars; 3. Hoisting device; 31. C-shaped plate; 311. Pipeline hole; 32. Supporting steel bars; 33. Distribution steel bars; 34. Hoisting reinforcement steel bars; 35. Connecting plate; 36. Arc plate; 361. Slot; 37. Fixed steel bars; 4. Reinforcement device; 41. Additional stiffener; 411. Through hole; 412. Threaded hole; 42. L-shaped plate; 421. Slide groove; 43. Fastening bolts. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0021] Example:

[0022] See also Figure 1 - Figure 7 The utility model provides a technical solution: a ribbed C-shaped steel prestressed composite floor, comprising: a concrete bottom plate 1; prestressed force bars 2, the outer wall of the prestressed force bars 2 is fixedly connected to the inner wall of the concrete bottom plate 1; the composite floor also includes: a lifting device 3, the lifting device 3 is used to lift the floor, the outer side of the lifting device 3 is fixedly connected to the inner cavity of the concrete bottom plate 1; a reinforcement device 4, the reinforcement device 4 is used to increase the rigidity of the floor, the bottom of the reinforcement device 4 is fixedly connected to the top of the concrete bottom plate 1; the lifting device 3 includes a C-shaped plate 31, the inner wall of the C-shaped plate 31 is fixedly connected with a distribution steel bar 33, the outer side of the distribution steel bar 33 is fixedly connected with a support steel bar 32, the outer side of the support steel bar 32 is in contact with the inner side of the C-shaped plate 31, and the outer side of the C-shaped plate 31 A hoisting reinforcement steel bar 34 is provided, and a fixing steel bar 37 is fixedly connected to the outer wall of the hoisting reinforcement steel bar 34, a connecting plate 35 is fixedly connected to the inner wall of the hoisting reinforcement steel bar 34, and an arc plate 36 is fixedly connected to the bottom of the connecting plate 35, and a slot 361 is opened in the wall of the arc plate 36, the outer side of the C-shaped plate 31 is fixedly connected to the inner wall of the concrete bottom plate 1, and a pipeline hole 311 is opened in the wall of the C-shaped plate 31, the outer wall of the supporting steel bar 32 is fixedly connected to the inner wall of the concrete bottom plate 1, the outer wall of the distribution steel bar 33 is fixedly connected to the inner wall of the concrete bottom plate 1, the inner wall of the concrete bottom plate 1 is fixedly connected to the outer wall of the hoisting reinforcement steel bar 34, the outer wall of the fixing steel bar 37 is fixedly connected to the inner wall of the concrete bottom plate 1, and the outer wall of the fixing steel bar 37 is fixedly connected to the outer wall of the distribution steel bar 33.

[0023] The reinforcement device 4 includes an additional stiffener 41, and L-shaped plates 42 are fixedly connected to both sides of the additional stiffener 41, and the L-shaped plates 42 are linearly arranged along the outer wall of the additional stiffener 41, and the inner wall of the additional stiffener 41 is threadedly connected with a fastening bolt 43 through a threaded hole 412, and the threaded hole 412 is opened in the wall of the additional stiffener 41, the outer wall of the fastening bolt 43 is threadedly connected to the inner wall of the concrete base plate 1, and the bottom of the additional stiffener 41 is fixedly connected to the top of the concrete base plate 1, and a through hole 411 is opened in the wall of the additional stiffener 41, and the outer wall of the L-shaped plate 42 is fixedly connected to the outer wall of the fastening bolt 43 through a slide groove 421, and the slide groove 421 is opened on the L-shaped plate 42, and the bottom of the L-shaped plate 42 is fixedly connected to the top of the concrete base plate 1.

[0024] Working principle:

[0025] When in use, firstly, the prestressed force reinforcement 2 and the distribution reinforcement 33 are cross-arranged in the concrete bottom plate 1. Since the concrete bottom plate 1 is long from top to bottom and wide from left to right, the prestressed force reinforcement 2 is arranged at intervals along the width direction of the concrete bottom plate 1, and the distribution reinforcement 33 is arranged at intervals along the length direction of the concrete bottom plate 1. The distribution reinforcement 33 is arranged above the prestressed force reinforcement 2. Then, the C-shaped plate 31 passes through the distribution reinforcement 33, and the top of the C-shaped plate 31 is buckled onto the supporting reinforcement 32. The supporting reinforcement 32 is fixedly connected to the prestressed force reinforcement 2 by welding, and the C-shaped plate 31 is fixedly connected to the distribution reinforcement 33 by welding. Secondly, the lifting reinforcement reinforcement 34 and the fixing reinforcement 37 on the lifting device 3 are fixedly connected to the distribution reinforcement 33 by welding. Finally, the prepared concrete slurry is poured in. After the concrete solidifies, the lifting hook is inserted into the slot 361 on the arc plate 36, so that the lifting hook hooks the lifting reinforcement reinforcement 34 on the connecting plate 35 to complete the lifting operation.

[0026] The stiffness of the floor slab is improved by the reinforcement device 4, so that the additional stiffness member 41 is closely fitted to the concrete base slab 1, and the stiffness of the composite floor slab is improved. The fastening bolts 43 are tightened and passed through the slide grooves 421 on the L-shaped plates 42, and then inserted into the threaded holes 412. The fastening bolts 43 pass through the L-shaped plates 42 and are fixed to the concrete base slab 1. The additional stiffness member 41 is fitted to the surface of the concrete base slab 1 through the L-shaped plates 42. The L-shaped plates 42 are distributed in an array on the additional stiffness member 41, and the L-shaped plates 42 are symmetrically arranged along the two sides of the additional stiffness member 41, so that the additional stiffness member 41 is integrated with the concrete base slab 1. The slide grooves 421 on the L-shaped plates 42 are arranged as strip holes, and the position of the bolts can be adjusted through the strip holes, and the additional stiffness member 41 can be installed and removed. The stiffness of the floor slab is improved by means of the additional stiffness member 41, ensuring that it will not crack during the manufacturing demoulding, transportation, and hoisting processes. The pipeline can be passed through the pipeline holes 311 and the through holes 411 for pipe penetration.

[0027] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A ribbed C-shaped steel prestressed composite floor slab, comprising: Concrete base plate (1); Prestressed reinforcement bars (2), the outer wall of the prestressed reinforcement bars (2) being fixedly connected to the inner wall of the concrete bottom plate (1); Characterized in that the composite floor slab also includes: A hoisting device (3), the hoisting device (3) being used for hoisting the floor slab, the outer side of the hoisting device (3) being fixedly connected to the inner cavity of the concrete bottom slab (1); A reinforcing device (4), the reinforcing device (4) being used to increase the rigidity of the floor slab, the bottom of the reinforcing device (4) being fixedly connected to the top of the concrete bottom slab (1); The hoisting device (3) comprises a C-shaped plate (31), the inner wall of the C-shaped plate (31) is fixedly connected with a distribution steel bar (33), the outer side of the distribution steel bar (33) is fixedly connected with a support steel bar (32), the outer side of the support steel bar (32) is in contact with the inner side of the C-shaped plate (31), the outside of the C-shaped plate (31) is provided with a hoisting reinforcement steel bar (34), the outer wall of the hoisting reinforcement steel bar (34) is fixedly connected with a fixing steel bar (37), the inner wall of the hoisting reinforcement steel bar (34) is fixedly connected with a connecting plate (35), the bottom of the connecting plate (35) is fixedly connected with an arc plate (36), and a slot (361) is provided in the wall of the arc plate (36).

2. The ribbed C-shaped steel prestressed composite floor slab according to claim 1, characterized in that: The outer side of the C-shaped plate (31) is fixedly connected to the inner wall of the concrete bottom plate (1), a pipeline hole (311) is opened in the wall of the C-shaped plate (31), the outer wall of the supporting steel bar (32) is fixedly connected to the inner wall of the concrete bottom plate (1), and the outer wall of the distribution steel bar (33) is fixedly connected to the inner wall of the concrete bottom plate (1).

3. The ribbed C-shaped steel prestressed composite floor slab according to claim 1, characterized in that: The inner wall of the concrete base plate (1) is fixedly connected to the outer wall of the hoisting reinforcement steel bar (34), the outer wall of the fixing steel bar (37) is fixedly connected to the inner wall of the concrete base plate (1), and the outer wall of the fixing steel bar (37) is fixedly connected to the outer wall of the distribution steel bar (33).

4. The ribbed C-shaped steel prestressed composite floor slab according to claim 1, characterized in that: The reinforcing device (4) comprises an additional rigid member (41), L-shaped plates (42) are fixedly connected to both sides of the additional rigid member (41), and the L-shaped plates (42) are linearly arranged along the outer wall of the additional rigid member (41), and the inner wall of the additional rigid member (41) is threadedly connected to a fastening bolt (43) through a threaded hole (412), and the threaded hole (412) is opened in the wall of the additional rigid member (41).

5. The ribbed C-shaped steel prestressed composite floor slab according to claim 4, characterized in that: The outer wall of the fastening bolt (43) is threadedly connected to the inner wall of the concrete base plate (1), the bottom of the additional rigidity member (41) is fixedly connected to the top of the concrete base plate (1), and a through hole (411) is provided in the wall of the additional rigidity member (41).

6. The ribbed C-shaped steel prestressed composite floor slab according to claim 5, characterized in that: The outer wall of the L-shaped plate (42) is fixedly connected to the outer wall of the fastening bolt (43) via a slide groove (421), and the slide groove (421) is provided on the L-shaped plate (42), and the bottom of the L-shaped plate (42) is fixedly connected to the top of the concrete base plate (1).