CN209799163U - Novel light sandwich concrete steel bar truss girder structure - Google Patents
Novel light sandwich concrete steel bar truss girder structure Download PDFInfo
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- CN209799163U CN209799163U CN201920201384.1U CN201920201384U CN209799163U CN 209799163 U CN209799163 U CN 209799163U CN 201920201384 U CN201920201384 U CN 201920201384U CN 209799163 U CN209799163 U CN 209799163U
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Abstract
The utility model relates to a building beam structure technical field specifically discloses a novel light sandwich concrete steel bar truss beam structure, including light concrete and atress member, the atress member is tetrahedron steel bar truss, tetrahedron steel bar truss's bight connected node adopts the angle steel to connect, the outside of atress member is equipped with the fire protection layer, the outside of fire protection layer is equipped with roof beam face parcel layer. The utility model discloses an adopt light sandwich concrete reinforcing bar truss girder construction to solve the concrete beam structure that uses at present stage thick, heavy and steel construction roof beam expose, cold bridge scheduling problem, through adopting the angle steel as connected node, improved beam structure's atress performance greatly, through adopting fire prevention protective layer and roof beam face parcel layer, play fire prevention, anticorrosive, heat preservation and thermal-insulated effect, prolonged the life of building when guaranteeing the safety of structure and building.
Description
Technical Field
The utility model relates to a building beam structure technical field specifically is a novel light sandwich concrete reinforcing bar truss girder construction.
Background
The reinforced concrete beam is made of reinforced concrete materials, has various forms, is the most basic bearing member in engineering structures such as house buildings, bridge buildings and the like, and has extremely wide application range.
The traditional reinforced concrete beam adopts horizontal reinforcement, the stress performance of the beam is poor, and the volume weight of the adopted common concrete is about 1500-plus 2000kg/m3The pressure to the beam structure is increased, the reinforced concrete beam structure used at the present stage has the problems of coarseness, heaviness, exposed structure, cold bridge and the like, and meanwhile, the performance is not good in the aspects of heat preservation, corrosion resistance, fire resistance and the like, so that the reinforced concrete beam structure is not well suitable for the fabricated building.
Aiming at the problems and defects of the existing reinforced concrete beam structure, the structure is urgently needed to be improved so as to improve the performances in the aspects of stress, heat preservation, fire prevention and the like, thereby meeting the performance requirements of modern buildings.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel light sandwich concrete reinforcing bar truss girder construction to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
The utility model provides a novel light sandwich concrete reinforcing bar truss girder construction, includes light concrete and atress member, the atress member is tetrahedral steel bar truss, tetrahedral steel bar truss's bight connected node adopts the angle steel as the connecting piece, the outside of atress member is equipped with the fire protection layer, the outside of fire protection layer is equipped with roof beam face parcel layer.
As a further aspect of the present invention: the tetrahedral steel bar truss comprises an upper chord steel bar and a lower chord steel bar which are arranged up and down, wherein an inclined web member steel bar which is obliquely arranged and a straight web member steel bar which is vertically arranged are arranged between the upper chord steel bar and the lower chord steel bar.
As a further aspect of the present invention: and both ends of the upper chord steel bar and the lower chord steel bar are provided with pre-processed straight threads, and straight thread sleeves are arranged on the straight threads.
as a further aspect of the present invention: the upper chord steel bar and the lower chord steel bar are both single.
As a further aspect of the present invention: the upper chord steel bars and the lower chord steel bars are at least two and are uniformly arranged.
As a further aspect of the present invention: the thickness of the fireproof protective layer is 50 mm.
As a further aspect of the present invention: the thickness of the beam surface wrapping layer is 10 mm.
As a further aspect of the present invention: the structure is one of square, rectangle, L-shaped, T-shaped or diamond-shaped.
As a further aspect of the present invention: the angle steel is a finished product.
As a further aspect of the present invention: the angle steel is manufactured and molded by welding steel plates.
Compared with the prior art, the beneficial effects of the utility model are that:
1. According to the novel lightweight sandwich concrete reinforced bar truss girder structure, the weight of the truss girder is reduced by adopting lightweight concrete, the problems that the concrete girder structure used at the present stage is thick and heavy, a steel structure girder is exposed, a cold bridge is formed and the like are effectively solved, the building structure can be produced in a factory, and then transported to the site for assembly, so that the novel lightweight sandwich concrete reinforced bar truss girder structure is very suitable for an assembly type building;
2. The structural steel bars of the beam are made of angle steel as a connecting material of the connecting nodes, so that any position of each plane on a tetrahedron of the beam structure is of a triangular structure, and the stress stability of the beam structure is greatly improved;
3. Adopt fire protection layer and roof beam face parcel layer, play anticorrosive, heat preservation and thermal-insulated effect, simultaneously when the conflagration, can effectively protect the reinforcing bar in the truss roof beam, guarantee the safety of structure and building.
drawings
In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural view of a surface a of a novel lightweight sandwich concrete reinforced bar truss beam structure.
Fig. 2 is a schematic view of a directional structure of a novel lightweight sandwich concrete reinforced bar truss beam structure.
Fig. 3 is an AB view of a portion of the connection node Z1.
fig. 4 is an enlarged structural diagram of a connection node of a part Z1 in fig. 1.
Fig. 5 is an AB view of a portion of the connection node Z2.
Fig. 6 is an enlarged structural diagram of a connection node of a part Z2 in fig. 1.
Fig. 7 is an AB view of a portion of the connection node Z3.
Fig. 8 is an enlarged structural diagram of a connection node of a part Z3 in fig. 1.
In the figure: 1-lightweight concrete, 2-upper chord steel bars, 3-lower chord steel bars, 4-diagonal web member steel bars, 5-straight web member steel bars, 6-straight thread sleeves, 7-fireproof protective layers, 8-beam surface wrapping layers and 9-angle steel.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1-8, in an embodiment of the present invention, a novel light sandwich concrete steel bar truss beam structure includes a light concrete 1 and a stressed member, where the stressed member is a tetrahedral steel bar truss, corner connection nodes of the tetrahedral steel bar truss adopt angle steel 9 as a connection member, a fireproof protection layer 7 is disposed outside the stressed member, and a beam surface wrapping layer 8 is disposed outside the fireproof protection layer 7.
Furthermore, the tetrahedral steel bar truss comprises an upper chord steel bar 2 and a lower chord steel bar 3 which are arranged up and down, and an inclined web member steel bar 4 which is obliquely arranged and a straight web member steel bar 5 which is vertically arranged are arranged between the upper chord steel bar 2 and the lower chord steel bar 3.
Furthermore, both ends of the upper chord steel bar 2 and the lower chord steel bar 3 are provided with pre-processed straight threads, and straight thread sleeves 6 are arranged on the straight threads.
Furthermore, the upper chord steel bar 2 and the lower chord steel bar 3 are both single.
Furthermore, the upper chord steel bar 2 and the lower chord steel bar 3 are at least two and are uniformly arranged.
Further, the thickness of the fireproof protective layer 7 is 50 mm.
Further, the thickness of the beam surface wrapping layer 8 is 10 mm.
Further, the angle steel 9 is a finished product.
Further, the angle steel 9 is formed by welding steel plates.
the embodiment of the utility model provides a theory of operation is: the novel light sandwich concrete steel bar truss girder structure adopts the light concrete 1 which only plays the auxiliary roles of filling, heat preservation and insulation, corrosion prevention, fire prevention and the like, so that the truss girder is more reasonable in structure, and meanwhile, the light concrete 1 can achieve the volume weight of 150 plus materials of 200kg/m3The weight of the truss girder is only 1/10 of the volume weight of the currently used common concrete, and the weight of the truss girder is greatly reduced on the basis of ensuring the quality; meanwhile, the lightweight concrete 1 and the stressed rod piece are completely separated, so that the problems of thick and heavy concrete beam structures, exposed steel structure beams, cold bridges and the like in the prior art are effectively solved, the performances of heat preservation, corrosion resistance, fire resistance and the like are improved, and the prefabricated concrete beam is completely suitable for prefabricated buildings.
The structure of the tetrahedral steel bar truss ensures that each surface in the vertical direction, the horizontal direction and the inner vertical surface meets the stress requirement of the beam structure, wherein the number of the upper chord steel bars 2 and the lower chord steel bars 3 is selected according to the stress calculation requirement of the beam structure, and can be single or multiple, when multiple steel bars are adopted, the steel bars are uniformly arranged, the internal structure form of the traditional steel bars in the beam is completely changed by adopting the angle steel 9 as a connecting node, so that any position of each plane of the beam structure is a triangular structure, the stress performance of the beam structure is greatly improved, meanwhile, the angle steel 9 needs to meet the requirement of double-surface welding of the steel bars, the length is five times of the steel bars,
Adopt fire protection layer 7, fire protection layer 7 can be for thickening environment-friendly incombustible cement base fire retardant coating, it can play anticorrosive in the lump with 1 cooperation of lightweight concrete, heat preservation and thermal-insulated effect, adopt beam face parcel layer 8, beam face parcel layer 8 can be environment-friendly incombustible cement base concrete reinforcing agent, wrap up its skin at fire protection layer 7, can regard as first defence line, when the conflagration breaing out, beam face parcel layer 8 receives the impact at first, after beam face parcel layer 8 is burnt out, fire protection layer 7 can sharply expand and cover the surface at the truss girder, effectively protect the reinforcing bar in the truss girder, guarantee the safety of structure and building, ensure that the fire-resistant rating exceeds national standard 2.5 hours.
The diameter and the length of the straight thread bushing 6 are selected according to the specification and the model of the corner reinforcing steel bar of the beam structure, the specification requirement of the straight thread connection of the reinforcing steel bar is met, the straight thread bushing 6 can be used for being connected with straight threads between other truss beams or columns, and the convenience in construction is improved.
Example 2
Referring to fig. 1 to 8, in an embodiment of the present invention, a novel lightweight sandwich concrete reinforced bar truss beam structure is one of a square, a rectangle, an L-shape, a T-shape, and a diamond-shape, unlike embodiment 1.
The embodiment of the utility model provides a theory of operation is: the truss girder structure can be made into square, rectangular, L-shaped, T-shaped or rhombic shapes according to the structural requirements of different buildings.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
the above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a novel light sandwich concrete reinforcing bar truss girder construction, a serial communication port, including light concrete (1) and atress member, the atress member is tetrahedron steel bar truss, tetrahedron steel bar truss's bight connected node adopts angle steel (9) as the connecting piece, the outside of atress member is equipped with fire protection layer (7), the outside of fire protection layer (7) is equipped with roof beam face parcel layer (8).
2. A novel light weight sandwich concrete steel bar truss beam structure according to claim 1, wherein the tetrahedral steel bar truss comprises an upper chord steel bar (2) and a lower chord steel bar (3) which are arranged up and down, and an inclined web member steel bar (4) which is obliquely arranged and a straight web member steel bar (5) which is vertically arranged are arranged between the upper chord steel bar (2) and the lower chord steel bar (3).
3. A novel light weight sandwich concrete steel bar truss beam structure as claimed in claim 2, wherein both ends of the upper chord steel bar (2) and the lower chord steel bar (3) are provided with pre-processed straight threads on which the straight thread sleeves (6) are mounted.
4. A novel lightweight sandwich concrete reinforcing steel bar truss beam structure as defined in claim 3 wherein said upper chord reinforcing steel bar (2) and lower chord reinforcing steel bar (3) are each single.
5. A novel light weight sandwich concrete steel bar truss girder structure according to claim 3, wherein the upper chord steel bar (2) and the lower chord steel bar (3) are at least two and are uniformly arranged.
6. A novel lightweight sandwich concrete reinforced truss beam structure as claimed in claim 1 wherein the thickness of the fire protective layer (7) is 50 mm.
7. A novel lightweight sandwich concrete reinforced truss beam structure as claimed in claim 1 wherein the thickness of the beam face wrap (8) is 10 mm.
8. A novel light weight sandwich concrete reinforcing bar truss beam structure as claimed in any one of claims 1 to 7, wherein said structure is one of square, rectangular, L-shaped, T-shaped or diamond-shaped.
9. A novel lightweight sandwich concrete reinforced truss beam structure as claimed in any one of claims 1 to 7, wherein said angle steel (9) is a finished product.
10. The novel lightweight sandwich concrete reinforced truss girder structure of any one of claims 1 to 7, wherein the angle steel (9) is formed by welding steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201384.1U CN209799163U (en) | 2019-02-13 | 2019-02-13 | Novel light sandwich concrete steel bar truss girder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201384.1U CN209799163U (en) | 2019-02-13 | 2019-02-13 | Novel light sandwich concrete steel bar truss girder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209799163U true CN209799163U (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920201384.1U Expired - Fee Related CN209799163U (en) | 2019-02-13 | 2019-02-13 | Novel light sandwich concrete steel bar truss girder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209799163U (en) |
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2019
- 2019-02-13 CN CN201920201384.1U patent/CN209799163U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20220213 |