CN218668108U - Hogging moment prestressing force steel pipe truss superimposed sheet - Google Patents
Hogging moment prestressing force steel pipe truss superimposed sheet Download PDFInfo
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- CN218668108U CN218668108U CN202223144034.7U CN202223144034U CN218668108U CN 218668108 U CN218668108 U CN 218668108U CN 202223144034 U CN202223144034 U CN 202223144034U CN 218668108 U CN218668108 U CN 218668108U
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Abstract
The utility model relates to a superimposed sheet field especially relates to a hogging moment prestressing force steel pipe truss superimposed sheet, include prefabricated bottom plate and install a plurality of groups parallel arrangement's on prefabricated bottom plate steel link up the frame, the steel link up the frame including two lower chord steel bars of encapsulation in prefabricated bottom plate and expose at the outside last chord steel pipe of prefabricated bottom plate, and buckle reinforcing bar welded fastening through the web member between last chord steel pipe and the last chord steel pipe and be connected, a serial communication port, wear steel strand wires in the last chord steel pipe, grout is packaged with the concrete layer that is used for connecting steel strand wires and last chord steel pipe inner wall in the last chord steel pipe, steel strand wires's both ends all are fixed with the pull ring, and install screw rod tractive device on one of them pull ring, and this hogging moment prestressing force steel pipe truss superimposed sheet can pass through screw rod tractive device two threaded rod superimposed sheets in the same direction of last chord steel pipe, and rotatory threaded sleeve can adjust the stretching out and drawing back, and stretch into a whole, improves the bearing capacity of superimposed sheet.
Description
Technical Field
The utility model relates to a superimposed sheet field especially relates to a hogging moment prestressing force steel pipe truss superimposed sheet.
Background
The laminated slab is a building template combining prefabricated concrete and cast-in-place concrete. Superimposed sheet adapting unit is formed by fossil fragments steel bar truss welding, and when concrete placement, superimposed sheet's adapting unit combines together with reinforcing bar and concrete, plays more firm effect of bonding.
According to the existing laminated slab, the two adjacent laminated slabs are only lapped through the longitudinal prestressed steel bars or the transverse prestressed steel bars inside the prefabricated bottom plate, and the bearing capacity of the laminated slab is relatively low.
Therefore, there is a need to provide a new hogging moment prestressed steel pipe truss composite slab to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a hogging moment prestressing force steel pipe truss superimposed sheet.
The utility model provides a pair of hogging moment prestressing force steel pipe truss superimposed sheet, include prefabricated bottom plate and install a plurality of groups parallel arrangement's on prefabricated bottom plate steel link up the frame, the steel link up the frame including two lower chord reinforcing bars of encapsulation in prefabricated bottom plate and expose at the outside last chord steel pipe of prefabricated bottom plate, and buckle reinforcing bar welded fixed connection through the web member between last chord steel pipe and the last chord steel pipe, its characterized in that, the steel strand wires have been worn in the last chord steel pipe, the grout is packaged with the concrete layer that is used for connecting steel strand wires and last chord steel pipe inner wall in the last chord steel pipe, the both ends of steel strand wires all are fixed with the pull ring, and install screw rod tractive device on one of them pull ring.
Preferably, the screw rod pulling device comprises a threaded sleeve and a threaded rod connected to two ends of the threaded sleeve through threads, the thread turning directions of the two ends of the threaded sleeve are opposite, a connecting ring is fixed to one end, far away from the threaded sleeve, of the threaded rod, and the connecting ring is in ring connection with the pull ring.
Preferably, a plurality of transverse prestressed steel bars and longitudinal prestressed steel bars are arranged in the prefabricated bottom plate in an array mode, and the prestressed steel bars and the transverse prestressed steel bars are connected in a binding mode through steel wires.
Preferably, the lower chord steel bars are connected with the prestressed steel bars and the transverse prestressed steel bars in a binding mode through steel wires.
Preferably, the web member bending reinforcing steel bar is V-shaped.
Preferably, the threaded sleeve is externally hexagonal prism-shaped
Preferably, the end part of the upper chord steel pipe is conical.
Compared with the prior art, the utility model provides a hogging moment prestressing force steel pipe truss superimposed sheet has following beneficial effect:
two superimposed sheets along the direction of the upper chord steel pipe can pass through the screw traction device, the threaded rod can be adjusted to stretch by rotating the threaded sleeve, and the two superimposed sheets are stretched into a whole, so that the bearing capacity of the superimposed sheets is improved.
Drawings
FIG. 1 is a schematic view of the actual assembly of the overall structure of the present invention;
fig. 2 is a schematic diagram of the relative positions of the transverse prestressed reinforcement and the longitudinal prestressed reinforcement of the present invention;
FIG. 3 is a schematic view of the steel armature frame of the present invention;
fig. 4 is an enlarged schematic view of the region a in fig. 1 according to the present invention.
Reference numbers in the figures: 1. prefabricating a bottom plate; 11. transverse prestressed reinforcement; 12. longitudinal prestressed reinforcement; 2. a steel armature rack; 21. a lower chord steel bar; 22. a steel pipe with a chord at the upper part; 23. the web member bends the reinforcing steel bar; 24. steel strand wires; 25. a concrete layer; 26. a pull ring; 27. a screw pulling device; 271. a threaded sleeve; 272. a connecting ring; 273. a threaded rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
Example (b):
referring to fig. 1-4, a hogging moment prestressed steel pipe truss composite slab provided by an embodiment of the present invention includes a prefabricated bottom plate 1 and a plurality of sets of parallel steel linking frames 2 installed on the prefabricated bottom plate 1;
a plurality of transverse prestressed reinforcements 11 and longitudinal prestressed reinforcements 12 are arranged in the prefabricated bottom plate 1 in an array manner, and the longitudinal prestressed reinforcements 12 and the transverse prestressed reinforcements 11 are connected in a binding manner through steel wires;
the steel armature frame 2 comprises two lower chord steel bars 21 packaged in the prefabricated bottom plate 1 and an upper chord steel tube 22 exposed outside the prefabricated bottom plate 1, the upper chord steel tube 22 and the upper chord steel tube 22 are fixedly connected through a web member bending steel bar 23 in a welding mode, the web member bending steel bar 23 is V-shaped, the V-shaped structure is formed, and the support is stable;
the inside array of prefabricated bottom plate 1 is provided with a plurality of horizontal prestressing steel 11 and vertical prestressing steel 12, and vertical prestressing steel 12 and horizontal prestressing steel 11 through the steel wire tieing, connects comparatively fast, and the stress is effectual, and vertical prestressing steel 12 is in with horizontal prestressing steel 11, does not necessarily have the prestressing force of two directions simultaneously.
The lower chord steel bars 21, the prestressed steel bars and the transverse prestressed steel bars 11 are connected in a binding mode through steel wires, connection is fast, and the stress effect is good.
The steel strand wires 24 penetrate through the upper chord steel tube 22, a concrete layer 25 used for connecting the steel strand wires 24 and the inner wall of the upper chord steel tube 22 is filled in the upper chord steel tube 22 in a grouting mode, pull rings 26 are fixed to two ends of each steel strand wire 24, and a screw rod pulling device 27 is installed on one pull ring 26.
The screw pulling device 27 comprises a threaded sleeve 271 and a threaded rod 273 connected to two ends of the threaded sleeve 271 through threads, and the exterior of the threaded sleeve 271 is hexagonal prism-shaped;
the thread turning directions of the two ends of the threaded sleeve 271 are opposite, a connecting ring 272 is fixed at one end of the threaded rod 273, which is far away from the threaded sleeve 271, the connecting ring 272 is in ring connection with the pull ring 26, and the threaded sleeve 271 can be rotated to adjust the telescopic movement of the threaded rod 273 so as to pull two adjacent laminated plates.
The end of the upper steel pipe 22 is tapered, so that the concrete layer 25 and the steel strand 24 are not pulled out of the upper steel pipe 22 as a whole.
The height of the steel armature is increased to 2/3 of the height of the floor slab, steel strands 24 are penetrated in the upper chord steel pipe 22, after prestress tensioning, concrete is grouted to form a laminated slab with negative bending moment, after the negative bending moment is achieved, two laminated slabs along the direction of the upper chord steel pipe 22 can be tensioned into a whole through the screw traction device 27, and the bearing capacity of the laminated slab is improved.
The above is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent processes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides a hogging moment prestressing force steel pipe truss superimposed sheet, includes prefabricated bottom plate (1) and installs a plurality of groups parallel arrangement's on prefabricated bottom plate (1) steel link up frame (2), steel link up frame (2) including encapsulating two lower chord reinforcing bars (21) in prefabricated bottom plate (1) and expose at prefabricated bottom plate (1) outside last chord steel pipe (22), and go up chord steel pipe (22) between buckle reinforcing bar (23) welded fastening connection through the web member, a serial communication port, steel strand wires (24) have been worn in last chord steel pipe (22), last chord steel pipe (22) internal grouting is packaged with concrete layer (25) that are used for connecting steel strand wires (24) and last chord steel pipe (22) inner wall, the both ends of steel strand wires (24) all are fixed with pull ring (26), and install screw rod tractive device (27) on one of them pull ring (26).
2. The hogging moment prestressing steel pipe truss composite slab according to claim 1, wherein the screw pulling device (27) comprises a threaded sleeve (271) and a threaded rod (273) connected to two ends of the threaded sleeve (271) through threads, the thread directions of the two ends of the threaded sleeve (271) are opposite, one end of the threaded rod (273) far away from the threaded sleeve (271) is fixed with a connecting ring (272), and the connecting ring (272) is connected with the pull ring (26) in an annular manner.
3. The hogging moment prestressed steel pipe truss composite slab as claimed in claim 2, wherein a plurality of transverse prestressed steel bars (11) and longitudinal prestressed steel bars (12) are arranged in an array manner inside the prefabricated bottom plate (1), and the longitudinal prestressed steel bars (12) and the transverse prestressed steel bars (11) are connected in a binding manner through steel wires.
4. The hogging moment prestressed steel pipe truss composite slab of claim 3, wherein said lower chord steel bars (21) are tied with prestressed steel bars and transverse prestressed steel bars (11) by steel wires.
5. The hogging moment prestressed steel pipe truss composite slab of claim 1, wherein said web member bent reinforcing bars (23) are V-shaped.
6. The hogging moment prestressed steel pipe truss composite slab of claim 2, wherein said threaded sleeve (271) is externally hexagonal prism shaped.
7. The hogging moment prestressed steel pipe truss composite slab of claim 2, wherein said upper chord steel pipe (22) ends are tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223144034.7U CN218668108U (en) | 2022-11-25 | 2022-11-25 | Hogging moment prestressing force steel pipe truss superimposed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223144034.7U CN218668108U (en) | 2022-11-25 | 2022-11-25 | Hogging moment prestressing force steel pipe truss superimposed sheet |
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| Publication Number | Publication Date |
|---|---|
| CN218668108U true CN218668108U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223144034.7U Active CN218668108U (en) | 2022-11-25 | 2022-11-25 | Hogging moment prestressing force steel pipe truss superimposed sheet |
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| CN (1) | CN218668108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117984429A (en) * | 2024-04-03 | 2024-05-07 | 山西省建筑科学研究院集团有限公司 | Pre-buried installation device of foamed ceramic steel skeleton light-duty board skeleton |
-
2022
- 2022-11-25 CN CN202223144034.7U patent/CN218668108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117984429A (en) * | 2024-04-03 | 2024-05-07 | 山西省建筑科学研究院集团有限公司 | Pre-buried installation device of foamed ceramic steel skeleton light-duty board skeleton |
| CN117984429B (en) * | 2024-04-03 | 2024-06-11 | 山西省建筑科学研究院集团有限公司 | Pre-buried installation device of foamed ceramic steel skeleton light-duty board skeleton |
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