CN215053202U - Support unit for turbine foundation raft and combined support system - Google Patents
Support unit for turbine foundation raft and combined support system Download PDFInfo
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- CN215053202U CN215053202U CN202120729863.8U CN202120729863U CN215053202U CN 215053202 U CN215053202 U CN 215053202U CN 202120729863 U CN202120729863 U CN 202120729863U CN 215053202 U CN215053202 U CN 215053202U
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Abstract
The utility model relates to a support unit and modular support system for steam turbine foundation raft, wherein, the welding has a plurality of layers of rectangle crossbeam between four L shape stands, multilayer rectangle crossbeam and raft foundation intermediate level reinforcing bar and top layer reinforcing bar looks adaptation, and the short section of each L shape stand is fixed with raft foundation reinforcing bar owner muscle ligature. In the combined support system, a plurality of support units are arranged in an array form, and adjacent support units are connected with each other through transverse steel bars and X-shaped inclined struts in a welding mode. The utility model discloses simple structure, the preparation is convenient, can support, highly higher raft foundation reinforcing bar construction provides stable support for bulky, heavy, multilayer, has the characteristics of safety, stability, high load. In addition, the support can be made of construction excess materials and waste materials, so that the material utilization rate is improved, the waste is reduced, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power civil engineering construction, concretely relates to a support unit and modular bracket system for steam turbine foundation raft.
Background
The turbine foundation raft foundation is bulky, the thickness is 4.5 meters, and the reinforcing steel bar configuration divides bottom, middle, top three-layer reinforcing bar net. The steel bar nets on each layer are stacked layer by layer according to the elevation, so that the accurate elevation is guaranteed, a stable supporting system is provided for steel bar construction, and the key of the binding of the steel bars of the raft foundation of the steam turbine foundation is formed. Conventional rebar supports use either a bent stirrup shape or a welded stirrup shape. The excessive high unstability that easily takes place of the reinforcing bar support height of stirrup shape, bearing capacity is little, and the stack ligature of the reinforcing bar net of the different elevation of inconvenient multilayer. In order to provide a safe, stable and high-load steel bar support system suitable for binding a plurality of layers of steel bar nets for the construction of the turbine foundation raft foundation steel bars, the steel bar support meeting the actual requirements on site needs to be designed according to the special requirement.
Disclosure of Invention
The utility model provides a can effectively improve reinforcing bar construction quality and satisfy the support unit and the modular braced system that are used for steam turbine foundation raft foundation of safety requirement, it is big with the reinforcement degree of difficulty to aim at solving the position of thick base top layer reinforcing bar and middle multilayer reinforcing bar, and the unsatisfied design requirement scheduling problem of steel bar protective layer.
The utility model discloses the technical scheme who adopts does:
a support unit for a turbine foundation raft comprises four L-shaped upright columns which are arranged in a rectangular shape, wherein the short section of each L-shaped upright column is positioned at the bottom and is transversely folded outwards; a plurality of layers of rectangular cross beams are welded among the four L-shaped stand columns, the plurality of layers of rectangular cross beams are matched with the raft foundation middle-layer reinforcing steel bars and the raft foundation top-layer reinforcing steel bars, and the short sections of the L-shaped stand columns are bound and fixed with the raft foundation bottom-layer reinforcing steel bar main bars.
Furthermore, the rectangular cross beam is formed by welding four steel bars on the four L-shaped stand columns.
Furthermore, the L-shaped upright posts adopt phi 40 steel bars; the rectangular beam on the uppermost layer is a top beam and adopts phi 40 steel bars; the rest rectangular cross beams are middle layer cross beams and adopt phi 20 steel bars.
Furthermore, V-shaped inclined struts for reinforcement are welded between every two adjacent L-shaped upright columns.
Furthermore, the V-shaped inclined strut adopts a steel bar with the specification of phi 25 and above.
Further, the length of the short section of the L-shaped upright post is 500 mm.
Furthermore, the short sections of the L-shaped upright columns are bound with the main reinforcement of the bottom layer of the raft foundation by adopting 14# iron wires.
A combined support system for a turbine foundation raft comprises a plurality of support units, wherein the support units are arranged in an array form, and adjacent support units are connected with each other through transverse steel bars and X-shaped inclined struts in a welding mode.
Further, the transverse spacing between the adjacent bracket units is not more than 1.2m, and the longitudinal spacing is not more than 1.5 m.
Furthermore, the transverse steel bars and the X-shaped inclined struts adopt steel bars with the specification of phi 25 and above.
The beneficial effects of the utility model reside in that:
the utility model discloses a support unit and combination formula support system simple structure, the preparation is convenient, can support, highly higher raft foundation reinforcing bar construction provides stable support for bulky, heavy, multilayer, has the characteristics of safety, stability, high load. In addition, the support can be made of construction excess materials and waste materials, so that the material utilization rate is improved, the waste is reduced, and the cost is saved.
Drawings
FIG. 1 is a schematic structural view of a stent unit;
FIG. 2 is a schematic structural view of a modular rack system;
reference numerals: 1-L-shaped upright posts, 2-rectangular cross beams and 3-V-shaped inclined struts.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples.
As shown in figure 1, a support unit for a turbine foundation raft comprises four L-shaped upright posts 1 which are arranged in a rectangular shape, wherein the short section of each L-shaped upright post 1 is positioned at the bottom and is transversely folded outwards. Four welding between L shape stand 1 have a plurality of layers of rectangle crossbeam 2, multilayer rectangle crossbeam 2 and raft foundation intermediate level reinforcing bar and top layer reinforcing bar looks adaptation, and the short section of each L shape stand 1 is fixed with the ligature of raft foundation bottom layer reinforcing bar owner muscle (every layer of rectangle crossbeam 2 the welding height by the elevation of raft foundation intermediate level reinforcing bar and top layer reinforcing bar and decide, carries out the layer number design of intermediate level crossbeam according to the layer number of intermediate level reinforcing bar).
In this embodiment, the rectangular cross beam 2 is formed by welding four reinforcing steel bars to four L-shaped columns 1.
The L-shaped upright posts 1 are made of phi 40 steel bars. The rectangular beam 2 at the uppermost layer is a top surface beam and adopts phi 40 steel bars. The rest rectangular cross beams 2 are middle layer cross beams and adopt phi 20 steel bars.
V-shaped inclined struts 3 for reinforcement are welded between every two adjacent L-shaped upright posts 1.
The V-shaped inclined strut 3 adopts reinforcing steel bars with the specification of phi 25 and above so as to ensure the integral rigidity, stability and anti-overturning performance of the reinforcing steel bar support supporting system.
The length of the short section of the L-shaped upright post 1 is 500 mm.
The short section of L shape stand 1 adopts 14# iron wire ligatures with raft foundation bottom layer reinforcing bar owner muscle, avoids the bottom of support and the bed course concrete direct contact of raft foundation, destroys the bottom waterproof layer.
The mounting method of the bracket unit comprises the following steps: after raft foundation bottom reinforcing bar construction is accomplished, put the support unit hoist and mount in place, place on the bottom reinforcing bar that has binded according to required interval, L shape stand 1 short section is firmly bound with bottom reinforcing bar owner muscle with 14# iron wire.
As shown in fig. 2, a combined support system for a turbine foundation raft comprises a plurality of support units, wherein the support units are arranged in an array form, and adjacent support units are connected with each other through transverse steel bars and X-shaped inclined struts in a welding mode.
The transverse spacing between adjacent bracket units is not more than 1.2m, and the longitudinal spacing is not more than 1.5 m.
The transverse reinforcing steel bars and the X-shaped inclined struts adopt reinforcing steel bars with the specification of phi 25 and above.
The installation method of the combined bracket system comprises the following steps: after the support units are installed and fixed, the middle layer steel bar net piece is placed on the middle layer cross beam, the top layer steel bar net piece is placed on the top surface cross beam, meanwhile, the transverse steel bars with the diameter of more than phi 25 are used for connection, and the adjacent support units are connected through the X-shaped steel bars, so that the integrally stable combined support system is formed.
Practice proves that the thicker raft foundation welding steel bar support of the embodiment has the following advantages: in the reinforcing bar work progress, the elevation of intermediate level and top layer reinforcing bar net piece has been strictly controlled to the support unit, and not only safety and stability do not hinder the reinforcing bar again and shuttle in putting the in-process.
Benefit analysis
Material cost: the total number of the bases of the turbine foundation is 210, the total amount of the steel bars is about 70 tons, the utilization excess materials or waste materials of the cross beams and the inclined struts are 25 tons, a large amount of steel bars are saved, and if 1 ton of steel bars has 4000 yuan, the cost is saved by 25 x 4000 to 100000 (yuan).
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the embodiments and the description only to illustrate the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims, the description and the equivalents thereof.
Claims (10)
1. A support unit for a turbine foundation raft is characterized by comprising four L-shaped upright columns (1) which are arranged in a rectangular shape, wherein the short section of each L-shaped upright column (1) is positioned at the bottom and is transversely folded outwards; a plurality of layers of rectangular cross beams (2) are welded among the four L-shaped upright columns (1), the plurality of layers of rectangular cross beams (2) are matched with the middle-layer reinforcing steel bars and the top-layer reinforcing steel bars of the raft foundation, and the short sections of the L-shaped upright columns (1) are bound and fixed with the main reinforcing steel bars of the bottom layer of the raft foundation.
2. The support unit for a steam turbine foundation raft according to claim 1, characterised in that the rectangular cross-beam (2) is made up of four steel bars welded to said four L-shaped uprights (1).
3. The support unit for a steam turbine foundation raft according to claim 2, characterised in that the L-shaped uprights (1) are made of steel bars of phi 40; the rectangular beam (2) at the uppermost layer is a top beam and adopts phi 40 steel bars; the rest rectangular cross beams (2) are middle-layer cross beams and adopt phi 20 steel bars.
4. The support unit for a steam turbine foundation raft according to claim 1, wherein V-shaped bracing (3) for reinforcement is welded between every two adjacent L-shaped columns (1).
5. The support unit for a steam turbine foundation raft according to claim 4, characterised in that the V-shaped braces (3) employ steel bars of specification phi 25 and above.
6. The support unit for a steam turbine foundation raft according to claim 1, characterised in that the short section of the L-shaped upright (1) is 500mm in length.
7. The support unit for a turbine foundation raft according to claim 1, wherein the short sections of the L-shaped columns (1) are bound with the raft foundation reinforcement main bars by using 14# iron wires.
8. A combined support system for a turbine foundation raft, comprising a plurality of support units as claimed in any one of claims 1 to 7, the plurality of support units being arranged in an array, adjacent support units being connected by transverse reinforcement and X-bracing welds.
9. A combined support system for a turbine foundation raft according to claim 8, wherein adjacent support units are spaced apart by no more than 1.2m in the transverse direction and by no more than 1.5m in the longitudinal direction.
10. The modular scaffold system for a steam turbine foundation raft according to claim 8, wherein the transverse tendons and the X-bracing employ tendons of diameter 25 and above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120729863.8U CN215053202U (en) | 2021-04-12 | 2021-04-12 | Support unit for turbine foundation raft and combined support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120729863.8U CN215053202U (en) | 2021-04-12 | 2021-04-12 | Support unit for turbine foundation raft and combined support system |
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| Publication Number | Publication Date |
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| CN215053202U true CN215053202U (en) | 2021-12-07 |
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| CN202120729863.8U Active CN215053202U (en) | 2021-04-12 | 2021-04-12 | Support unit for turbine foundation raft and combined support system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575396A (en) * | 2022-03-14 | 2022-06-03 | 中冶城市投资控股有限公司 | Reinforcing method for construction elevator foundation |
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2021
- 2021-04-12 CN CN202120729863.8U patent/CN215053202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575396A (en) * | 2022-03-14 | 2022-06-03 | 中冶城市投资控股有限公司 | Reinforcing method for construction elevator foundation |
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