Inverted triangular steel bar truss type laminated slab

Abstract

The utility model provides an inverted triangular steel bar truss type laminated slab, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The inverted triangular steel bar truss type laminated slab comprises a bottom plate, a face plate and a truss assembly, the bottom plate and the face plate are both made of concrete materials, the truss assembly is wrapped between the bottom plate and the face plate, the truss assembly comprises a first steel bar, a second steel bar, a third steel bar, reinforcing ribs and supporting ribs, and the first steel bar and the second steel bar are arranged in a left-right parallel and adjacent mode. The third reinforcing steel bar is located on the lower portion between the first reinforcing steel bar and the second reinforcing steel bar and is parallel to the first reinforcing steel bar, and reinforcing ribs are arranged between the first reinforcing steel bar and the second reinforcing steel bar in the length direction, between the first reinforcing steel bar and the third reinforcing steel bar in the length direction and between the second reinforcing steel bar and the third reinforcing steel bar in the length direction. The inverted triangular steel bar truss type laminated slab is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to an inverted triangular steel bar truss type composite plate. Background Art

[0002] Composite floor is a widely used structural form. At present, the most commonly used ones are triangular steel bar truss composite slab (truss upright), ribbed triangular steel bar truss composite slab, prefabricated ribbed composite slab, triangular steel tube truss composite slab (truss upright), etc.

[0003] The support spacing of triangular steel bar truss composite slab (truss upright) is small during on-site construction, and full support is basically required. Considering the support cost and the convenience of on-site construction, reducing the number of supports of the composite slab and facilitating on-site construction has great practical significance. Ribbed triangular steel bar truss composite slab, prefabricated ribbed composite slab, triangular steel tube truss composite slab (truss upright) are all composite slabs with few supports based on the above considerations.

[0004] According to Shanghai Construction Materials

[2019] No. 765 and Shanghai Construction Materials

[2021] No. 584, when the support spacing of the composite slab is greater than 3 meters, it can be defined as a "bracing-free composite slab". When calculating the prefabrication rate, the correction factor for non-bracing-free slabs is 0.45, and the correction factor for bracing-free slabs that meet the requirements of the document can be 0.55. Ribbed triangular steel bar truss composite slabs, prefabricated ribbed composite slabs, and triangular steel tube truss composite slabs (trusses are upright) all meet the requirements for bracing-free slabs specified in the document.

[0005] Through more engineering practices, it is found that the factory production of ribbed triangular reinforced steel truss composite plates, prefabricated ribbed composite plates, and triangular steel tube truss composite plates (truss upright) is relatively cumbersome and has high production costs. Small space is reserved for the installation of on-site equipment and pipelines, making construction difficult. Concrete ribs will affect the installation of the upper steel bars of the floor slab. The cost of these three types of plates is relatively high. Summary of the invention

[0006] The utility model aims to provide an inverted triangular steel bar truss type composite plate with high stability and relatively low cost in view of the above problems existing in the prior art.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] An inverted triangular reinforced steel truss composite plate, comprising a base plate, a panel and a truss assembly, wherein the base plate and the panel are both made of concrete, and the truss assembly is wrapped between the base plate and the panel, and is characterized in that the truss assembly comprises steel bar one, steel bar two, steel bar three, reinforcing ribs and support ribs, wherein the steel bar one and steel bar two are arranged adjacent to each other in parallel, the steel bar three is located at the lower part between the steel bar one and the steel bar two and the steel bar three is parallel to the steel bar one, reinforcing ribs are provided between the steel bar one and the steel bar two along their length direction, between the steel bar one and the steel bar three along their length direction, and between the steel bar two and the steel bar three along their length direction, the middle part of the support rib is supported and connected to the lower part of the steel bar one and the steel bar two, and the two ends of the support rib are respectively against the upper part of the base plate.

[0009] The inverted triangular reinforced steel truss composite plate creatively arranges the truss assembly between the bottom plate and the top plate. The truss assembly not only stably connects the bottom plate and the top plate, but also effectively increases the strength of the entire composite plate.

[0010] The preparation process of the laminated board is as follows:

[0011] The bottom plate adopts a flat prefabricated plate, and the lower part of the truss assembly is embedded in the bottom plate. Under the action of the supporting ribs, the cross-section of the truss assembly can be located on the upper part of the bottom plate in an inverted triangle.

[0012] After the above preparation work is completed, the liquid concrete raw material is poured on the upper part of the bottom plate by pouring, and the above truss assembly is covered by the liquid concrete raw material, and the poured concrete raw material is solidified to form a panel. It can be seen that the panel covers the upper part of the truss assembly, and the connection stability and overall strength between the panel and the bottom plate can be effectively improved under the action of the truss assembly.

[0013] In the above-mentioned inverted triangular steel bar truss composite slab, the number of the supporting bars is a plurality, and the plurality of supporting bars are evenly distributed along the length direction of the steel bar.

[0014] The provision of a plurality of supporting ribs enables the truss assembly to be stably placed on the upper portion of the base plate when the composite plate is prepared.

[0015] At the same time, the truss components can be easily lifted through the supporting ribs.

[0016] In the above-mentioned inverted triangular steel bar truss composite plate, the number of the truss components is several, the truss components are in the shape of long strips, and the several truss components are arranged in parallel and adjacently between the bottom plate and the top plate.

[0017] The provision of multiple truss assemblies can effectively improve the connection stability between the panel and the base plate and ensure that the entire composite plate has relatively high strength.

[0018] In the above-mentioned inverted triangular reinforced steel truss composite plate, the reinforcing ribs include rib segment 1 and rib segment 2, the rib segment 1 is arranged obliquely with the steel bar 1, the rib segment 2 is arranged perpendicular to the steel bar 1, and the rib segment 1 and the rib segment 2 are arranged adjacent to each other front and back to form a wavy reinforcement part.

[0019] The wavy reinforcement part is filled between two adjacent steel bars, which effectively improves the connection stability of the two adjacent steel bars.

[0020] In the above-mentioned inverted triangular steel bar truss composite plate, the reinforcing ribs include rib segment 2 vertically fixed between steel bar 1 and steel bar 2, the number of rib segment 2 is several and the several rib segments 2 are evenly distributed along the length direction of steel bar 1.

[0021] The reinforcing bars between steel bars one and three, and between steel bars two and three are wound around the second rib section between steel bars one and two. Such a structure can also stably fix steel bars one, two, and three together.

[0022] In the above-mentioned inverted triangular steel bar truss composite plate, there are reinforcement parts between the above-mentioned steel bars 1 and 2 along their length direction, between the above-mentioned steel bars 1 and 3 along their length direction, and between the above-mentioned steel bars 2 and 3 along their length direction.

[0023] Such a structure can stably connect steel bar 1, steel bar 2 and steel bar 3 together.

[0024] In the above-mentioned inverted triangular steel bar truss composite plate, the support bar is in the shape of a long strip, the middle part of the support bar is a support part one protruding upward, and the two ends of the support bar are support parts two protruding downward. The above-mentioned support part one rests on the lower part of steel bars one and two, and the above-mentioned support part two rests on the upper part of the bottom plate.

[0025] The support part one is used for supporting the steel bar one and the steel bar two, and the two support parts two are used for stable contact with the bottom plate.

[0026] In the above-mentioned inverted triangular steel bar truss composite plate, one of the support parts 2 has a contact section 1 protruding toward the side of the support bar, and the support part 2 and the corresponding contact section 1 are in contact with the bottom plate surface, and the other support part 2 has a contact section 2 protruding toward the side of the support bar, and the support part 2 and the corresponding contact section 2 are in contact with the bottom plate surface.

[0027] The arrangement of the contact segment 1 and the contact segment 2 enables the support portion 1 and the support portion 2 to be placed on the bottom plate more stably.

[0028] In the above-mentioned inverted triangular steel bar truss composite plate, the support portion 1, the support portion 2, the contact section 1 and the contact section 2 are an integrated structure.

[0029] This can appropriately improve the compactness of the structure.

[0030] Compared with the existing technology, the support spacing of the inverted triangular reinforced steel truss composite slab can be greater than 3 meters, which can meet the requirements of "support-free composite slab" stipulated in Shanghai Construction Materials

[2019] No. 765 and Shanghai Construction Materials

[2021] No. 584. It avoids the problem of numerous production processes for large-spacing support slabs such as ribbed triangular reinforced steel truss composite slabs, prefabricated ribbed composite slabs, and triangular steel tube truss composite slabs (trusses are upright), which affects production efficiency and has high production costs, and solves the problem of difficulty in threading equipment pipelines.

[0031] Compared with the three existing composite panels, the production and construction of this composite panel are more convenient and economical, and it has high promotion significance and practical value.

[0032] Since the truss components are respectively embedded in the bottom plate and the face plate, the connection stability of the entire composite plate can be improved eventually. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the cross-sectional structure of the inverted triangular reinforced steel truss composite slab.

[0034] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the inverted triangular reinforced steel truss composite slab.

[0035] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the inverted triangular reinforced steel truss composite plate in another direction.

[0036] In the figure, 1, bottom plate; 2, panel; 3, steel bar 1; 4, steel bar 2; 5, steel bar 3; 6, reinforcing bar; 6a, rib segment 1; 6b, rib segment 2; 7, supporting rib; 7a, supporting part 1; 7b, supporting part 2; 7b1, contact segment 1; 7b2, contact segment 2. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0040] like Figure 1 and Figure 2 and Figure 3 As shown, the inverted triangular reinforced steel truss composite plate includes a base plate 1, a panel 2 and a truss assembly, the base plate 1 and the panel 2 are both made of concrete materials, the truss assembly is wrapped between the base plate 1 and the panel 2, the truss assembly includes steel bar 1 3, steel bar 2 4, steel bar 3 5, reinforcing ribs 6 and support ribs 7, the steel bar 1 3 and steel bar 2 4 are arranged parallel and adjacent to each other, the steel bar 3 5 is located at the lower part between the steel bar 1 3 and the steel bar 2 4 and the steel bar 3 5 is parallel to the steel bar 1 3, there are reinforcing ribs 6 between the steel bar 1 3 and the steel bar 2 4 along their length direction, between the steel bar 1 3 and the steel bar 3 5 along their length direction, and between the steel bar 2 4 and the steel bar 3 5 along their length direction, the middle part of the support rib 7 is supported and connected to the lower part of the steel bar 1 3 and the steel bar 2 4, and the two ends of the support rib 7 are respectively against the upper part of the base plate 1.

[0041] The number of the supporting ribs 7 is several, and the supporting ribs 7 are evenly distributed along the length direction of the steel bar 3.

[0042] There are several truss assemblies, each of which is in the shape of a long strip. Several truss assemblies are arranged in parallel and adjacent to each other between the bottom plate 1 and the panel 2 .

[0043] The reinforcing rib 6 includes a rib segment 1 6a and a rib segment 2 6b. The rib segment 1 6a is arranged obliquely with the steel bar 1 3, and the rib segment 2 6b is arranged perpendicular to the steel bar 1 3. The rib segment 1 6a and the rib segment 2 6b are arranged adjacent to each other front and back to form a wavy reinforcement part.

[0044] There are reinforcement parts between the above-mentioned steel bars 1 3 and 2 4 along their length directions, between the steel bars 1 3 and 3 5 along their length directions, and between the steel bars 2 4 and 3 5 along their length directions.

[0045] The support rib 7 is in the shape of an elongated strip, with an upwardly protruding support portion 1 7a in the middle and downwardly protruding support portions 2 7b at both ends of the support rib 7. The support portion 1 7a abuts against the lower portions of the steel bars 1 3 and 2 4, and the support portion 2 7b abuts against the upper portion of the base plate 1.

[0046] One of the supporting parts 7b has a contact section 7b1 protruding toward the side of the supporting rib 7, and the supporting part 7b and the corresponding contact section 7b1 are in surface contact with the bottom plate 1, and the other supporting part 7b has a contact section 7b2 protruding toward the side of the supporting rib 7, and the supporting part 7b and the corresponding contact section 2 are in surface contact with the bottom plate 1.

[0047] The support portion 1 7a, the support portion 2 7b, the contact segment 1 and the contact segment 2 are an integrated structure.

[0048] The inverted triangular reinforced steel truss composite plate creatively arranges the truss assembly between the bottom plate and the top plate. The truss assembly not only stably connects the bottom plate and the top plate, but also effectively increases the strength of the entire composite plate.

[0049] The preparation process of the laminated board is as follows:

[0050] The bottom plate adopts a flat prefabricated plate, and the lower part of the truss assembly is embedded in the bottom plate. Under the action of the supporting ribs, the cross-section of the truss assembly can be located on the upper part of the bottom plate in an inverted triangle.

[0051] After the above preparation work is completed, the liquid concrete raw material is poured on the upper part of the bottom plate by pouring, and the above truss assembly is covered by the liquid concrete raw material, and the poured concrete raw material is solidified to form a panel. It can be seen that the panel covers the upper part of the truss assembly, and the connection stability and overall strength between the panel and the bottom plate can be effectively improved under the action of the truss assembly.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. An inverted triangular steel bar truss composite plate, comprising a base plate, a panel and a truss assembly, wherein the base plate and the panel are both made of concrete, and the truss assembly is wrapped between the base plate and the panel, characterized in that: The truss assembly includes steel bar 1, steel bar 2, steel bar 3, reinforcing ribs and support ribs. The steel bar 1 and steel bar 2 are arranged adjacent to each other in parallel on the left and right sides. The steel bar 3 is located at the lower part between the steel bar 1 and the steel bar 2 and is parallel to the steel bar 1. Reinforcing ribs are provided between the steel bar 1 and the steel bar 2, between the steel bar 1 and the steel bar 3, and between the steel bar 2 and the steel bar 3. The middle part of the support rib is supported and connected to the lower part of the steel bar 1 and the steel bar 2, and the two ends of the support rib are respectively against the upper part of the bottom plate.

2. The inverted triangular steel bar truss composite plate according to claim 1, characterized in that: The number of the supporting bars is several, and the supporting bars are evenly distributed along the length direction of the steel bar 1.

3. The inverted triangular steel bar truss composite plate according to claim 2, characterized in that: There are several truss assemblies, each of which is in the shape of a long strip, and several truss assemblies are arranged in parallel and adjacently between the bottom plate and the panel.

4. The inverted triangular steel bar truss composite plate according to claim 3, characterized in that: The reinforcing ribs include rib segment 1 and rib segment 2. The rib segment 1 is arranged obliquely with the steel bar 1, and the rib segment 2 is arranged perpendicular to the steel bar 1. The rib segment 1 and the rib segment 2 are arranged adjacent to each other front and back to form a wavy reinforcement part.

5. The inverted triangular steel bar truss composite plate according to claim 3, characterized in that: The reinforcing ribs include rib segments 2 vertically connected between steel bars 1 and 2, the number of rib segments 2 is a plurality and the plurality of rib segments 2 are evenly distributed along the length direction of steel bar 1.

6. The inverted triangular steel bar truss composite plate according to claim 4, characterized in that: There are reinforcement parts between the above-mentioned steel bars 1 and 2 along their length direction, between the steel bars 1 and 3 along their length direction, and between the steel bars 2 and 3 along their length direction.

7. The inverted triangular steel bar truss composite plate according to claim 6, characterized in that: The support rib is in the shape of an elongated strip, the middle of the support rib is a support portion 1 protruding upward, and the two ends of the support rib are support portions 2 protruding downward. The support portion 1 abuts against the lower portions of the first and second steel bars, and the support portion 2 abuts against the upper portion of the bottom plate.

8. The inverted triangular steel bar truss composite plate according to claim 7, characterized in that: One of the support parts 2 has a contact segment 1 protruding toward the side of the support rib, and the support part 2 and the corresponding contact segment 1 are in contact with the bottom plate surface. The other support part 2 has a contact segment 2 protruding toward the side of the support rib, and the support part 2 and the corresponding contact segment 2 are in contact with the bottom plate surface.

9. The inverted triangular steel bar truss composite plate according to claim 8, characterized in that: The support portion 1, the support portion 2, the contact segment 1 and the contact segment 2 are an integrated structure.

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