Composite carbon fiber reinforced thin concrete steel bar and steel pipe combined plane steel bar truss laminated slab
By using composite carbon fiber reinforced thin concrete steel bars and steel pipe combined planar steel truss composite slabs, the problems of difficult demolding, uneven bottom and high construction difficulty of existing truss floor decks have been solved, realizing a high-strength and flat floor deck structure suitable for residential buildings.
Patent Information
- Application Number
- CN202520114278.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing truss floor decking has problems such as difficulty in demolding, uneven bottom, reduced strength, easy damage, high construction difficulty, high cost, and inapplicability to residential buildings during production and use.
The composite carbon fiber reinforced thin concrete steel bar and steel pipe combined planar steel truss composite plate are adopted, including bottom formwork, threaded high-strength composite fiber reinforced ribs, bottom chord steel bars, composite carbon fiber mesh, steel wire mesh, steel pipe truss and steel truss. High-performance self-compacting concrete is poured by welding the steel wire mesh and the flared foot, realizing the elimination of formwork and support.
It improves the strength and flatness of truss floor decking, reduces construction difficulty and cost, and enables large-span, support-free construction, making it suitable for residential buildings.
Smart Images
Figure CN223805750U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to steel bar truss floor panel technical field, concretely relates to composite carbon fiber reinforced thin concrete steel bar, steel pipe combination plane steel bar truss laminated board. BACKGROUND
[0002] At present, the existing truss floor panel is mostly galvanized iron sheet and laminated board, in actual production and use, the truss floor panel has the problem of difficult demolding, and the truss floor panel has the condition of uneven bottom in the use process, causes the convex and concave uneven, causes the strength of truss floor panel to reduce, is easy to appear the damage, the truss of galvanized iron sheet truss floor panel is easy to weld, the laminated board needs to weave large area plate band in the four around floor panel in the process of cast-in-situ, the construction difficulty is big, the cost is high, and the steel bar ram frame has the foot, if is placed on the ground, is and the ground contact, and, at present, the existing steel bar truss floor panel is mostly galvanized iron sheet truss floor panel and steel bar truss laminated board, the thickness of galvanized iron sheet is 0.5 millimeter, and the steel bar truss laminated board is the welding product of steel bar truss, that is, the steel bar truss is formed by 60 millimeter thickness concrete cast-in-situ, in actual production and application, the defect of galvanized iron sheet truss floor panel is that the iron sheet is too thin, only 0.5 millimeter, and it is not easy to weld firmly with steel bar truss, in use, the phenomenon of welding occurs occasionally, cannot bear the downward pressure in the process of concrete construction, causes the iron sheet to fall, the ground is uneven after construction, is inconvenient for construction in later period, and is only applicable to factory building, cannot be applicable to residential building, and the defect of steel bar truss laminated board is that the four sides of the board have convex ribs, which are called mustache ribs in the industry, there is 30 centimeter thick adhesive tape between the boards, and the bottom needs to be supported by full-frame support, the labor and material cost is high, and the construction period is long. CONTENT OF UTILITY MODEL
[0003] The utility model discloses a composite carbon fiber reinforced thin concrete steel bar, steel pipe combination plane steel bar truss laminated board, to solve the problem that the existing truss floor panel has the problem of difficult demolding in actual production and use, and the truss floor panel has the condition of uneven bottom in the use process, causes the convex and concave uneven, causes the strength of truss floor panel to reduce, is easy to appear the damage, the truss of galvanized iron sheet truss floor panel is easy to weld, the laminated board needs to weave large area plate band in the four around floor panel in the process of cast-in-situ, the construction difficulty is big, the cost is high, and the steel bar ram frame has the foot, if is placed on the ground, is and the ground contact, and, at present, the existing steel bar truss floor panel is mostly galvanized iron sheet truss floor panel and steel bar truss laminated board, the thickness of galvanized iron sheet is 0.5 millimeter, and the steel bar truss laminated board is the welding product of steel bar truss, that is, the steel bar truss is formed by 60 millimeter thickness concrete cast-in-situ, in actual production and application, the defect of galvanized iron sheet truss floor panel is that the iron sheet is too thin, only 0.5 millimeter, and it is not easy to weld firmly with steel bar truss, in use, the phenomenon of welding occurs occasionally, cannot bear the downward pressure in the process of concrete construction, causes the iron sheet to fall, the ground is uneven after construction, is inconvenient for construction in later period, and is only applicable to factory building, cannot be applicable to residential building, and the defect of steel bar truss laminated board is that the four sides of the board have convex ribs, which are called mustache ribs in the industry, there is 30 centimeter thick adhesive tape between the boards, and the bottom needs to be supported by full-frame support, the labor and material cost is high, and the construction period is long.
[0004] To achieve the above object, the utility model provides the following technical scheme: composite carbon fiber reinforced thin concrete steel bar, steel pipe combination plane steel bar truss superimposed board, including bottom die, screw thread high strength composite fiber reinforced bar, lower chord steel bar, composite carbon fiber net, steel mesh, steel pipe truss and steel bar truss, the bottom die is located at the bottom of the composite carbon fiber net, the top of the composite carbon fiber net is provided with steel mesh, the steel pipe truss includes lower chord steel bar, leg, steel pipe, high mark number concrete and composite carbon fiber net cylinder, the lower chord steel bar is located below the steel pipe, the inside of the steel pipe is provided with high mark number concrete, the inside of the high mark number concrete is wrapped with composite carbon fiber net cylinder, the leg connects the steel pipe and lower chord steel bar, the steel bar truss includes steel bar, lower chord steel bar and leg, and the leg connects the lower chord steel bar and the steel bar.
[0005] Preferably, the diameter of the screw thread high strength composite fiber reinforced bar is 10-15cm, and the tensile strength is 100-800MPa.
[0006] Preferably, the lower chord steel bar is fixedly connected with the steel mesh.
[0007] Preferably, the steel pipe truss and the steel bar truss are both located above the steel mesh, and the steel pipe truss and the steel bar truss are staggered with each other.
[0008] Compared with the prior art, the utility model has the advantages that:
[0009] 1. The steel mesh and the leg are welded, a layer of steel mesh is welded under the steel bar truss with the leg, and high-performance self-compacting concrete is poured, so that the strength is improved, and the steel bar truss floor slab can be realized without weaving and supporting, and the existing steel bar truss floor slab construction needs to be supported every 1.5m, and the above structure is used, and the steel mesh is further added, so that the steel bar truss floor slab can be realized without supporting for 6-15m.
[0010] 2. The screw thread high strength composite fiber reinforced bar with a diameter of 10-15cm is used, and a screw thread structure is arranged outside the screw thread high strength composite fiber reinforced bar, so that the gripping force with the high-performance self-compacting concrete is strengthened, the truss floor slab body bottom surface is not adhered to the mold after curing and solidification, the truss floor slab body bottom surface is flat and defect-free, the strength is high, and the truss floor slab body bottom surface is not easy to break.
[0011] 3. The existing steel bar truss is welded with iron sheet, the strength is not high and the welding is easy to be removed, and during pouring of the floor slab, a support column needs to be erected every 1.5m due to the low strength, and the construction is complex and difficult, the existing steel bar truss floor slab construction needs to be supported every 1.5m, and the above structure is used, and the cold-drawn steel wire mesh is further added, so that the steel bar truss floor slab can be realized without supporting for 6-15m.
[0012] 4. The upper chord of the steel bar truss is a steel pipe, and a composite carbon fiber mesh tube is attached in the steel pipe, the compressive strength of the upper chord is 10-40 times of the compressive strength of the steel bar upper chord of the ordinary steel bar truss, and the span of 6-15 meters can be realized without removing the bottom mold and without supporting.
[0013] 5. The previously used steel mesh sheet has the same fixed aperture, but the size of the steel bar truss is different, so that the top end of the two side corners of the steel bar truss cannot be aligned and welded with the vertical steel of the steel mesh sheet. The patent prepares a special steel mesh sheet according to the interval distance of the two side corners of the steel bar truss, and the top of the two side corners of the steel bar truss is aligned and combined and welded with the vertical steel of the steel mesh sheet, and the compressive and tensile strength is higher. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a whole structure schematic view of the utility model;
[0015] Fig. 2 It is a whole structure schematic view of the utility model A part;
[0016] Fig. 3 It is a whole structure schematic view of the utility model B part.
[0017] In the drawing: A, steel pipe truss; B, steel bar truss; 1, bottom mold; 4, threaded high-strength composite fiber reinforced bar; 5, lower chord steel bar; 7, composite carbon fiber mesh; 8, steel mesh sheet; 9, corner leg; 10, steel pipe; 11, high-grade concrete; 12, composite carbon fiber mesh tube; 13, steel bar. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0019] Please refer to Figs. 1-3The utility model provides a composite carbon fiber reinforced thin type concrete steel bar, steel pipe combination plane steel bar truss superimposed board, including bottom die 1, screw thread high strength composite fiber reinforced bar 4, lower chord steel bar 5, composite carbon fiber net 7, steel wire mesh 8, steel pipe truss A and steel bar truss B, bottom die 1 is located at the bottom of composite carbon fiber net 7, the top of composite carbon fiber net 7 is provided with steel wire mesh 8, steel pipe truss A includes lower chord steel bar 5, the foot 9 of scooping, steel pipe 10, high grade concrete 11 and composite carbon fiber net cylinder 12, and lower chord steel bar 5 is located below steel pipe 10, and the inside of steel pipe 10 is provided with high grade concrete 11, and high grade concrete 11 is wrapped with composite carbon fiber net cylinder 12, and the foot 9 of scooping connects steel pipe 10 with lower chord steel bar 5, and steel bar truss B includes steel bar 13, lower chord steel bar 5 and the foot 9 of scooping, and the foot 9 of scooping connects lower chord steel bar 5 with steel bar 13.
[0020] Specifically, the diameter of the screw thread high strength composite fiber reinforced bar 4 is 10-15 cm, and the tensile strength is 100-800 MPa.
[0021] Specifically, the lower chord steel bar 5 is fixedly connected with the steel wire mesh 8.
[0022] Specifically, the steel pipe truss A and the steel bar truss B are both located above the steel wire mesh 8, and the steel pipe truss A and the steel bar truss B are interlaced with each other.
[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A composite carbon fiber reinforced thin concrete steel bar and steel pipe combined planar steel truss composite slab, comprising a bottom formwork (1), threaded high-strength composite fiber reinforcing bars (4), lower chord steel bars (5), composite carbon fiber mesh (7), wire mesh (8), steel pipe truss (A) and steel truss (B), characterized in that: The bottom die (1) is located at the bottom of the composite carbon fiber net (7), the top of the composite carbon fiber net (7) is provided with a steel wire mesh (8), the steel pipe truss (A) comprises a lower chord steel bar (5), a toe (9), a steel pipe (10), high-grade concrete (11) and a composite carbon fiber net cylinder (12), the lower chord steel bar (5) is located below the steel pipe (10), the inside of the steel pipe (10) is provided with the high-grade concrete (11), the inside of the high-grade concrete (11) is wrapped with the composite carbon fiber net cylinder (12), the toe (9) connects the steel pipe (10) and the lower chord steel bar (5), the steel bar truss (B) comprises a steel bar (13), the lower chord steel bar (5) and the toe (9), and the toe (9) connects the lower chord steel bar (5) and the steel bar (13).
2. The composite carbon fiber reinforced thin concrete steel bar, steel pipe combined plane steel bar truss superimposed slab according to claim 1, characterized in that: The diameter of the screw thread-shaped high-strength composite fiber reinforced bar (4) is 10-15 cm, and the tensile strength is 100-800 MPa.
3. The composite carbon fiber reinforced thin concrete steel bar, steel pipe combined plane steel bar truss superimposed slab according to claim 1, characterized in that: The lower chord steel bar (5) is fixedly connected with the steel wire mesh (8).
4. The composite carbon fiber reinforced thin concrete steel bar, steel pipe combined plane steel truss sandwich slab according to claim 1, characterized in that: The steel pipe truss (A) and the steel bar truss (B) are both located above the steel wire mesh (8), and the steel pipe truss (A) and the steel bar truss (B) are staggered with each other.