CN203452439U - Prestressed reinforcing steel bar and concrete combined steel tube tower column - Google Patents
Prestressed reinforcing steel bar and concrete combined steel tube tower column Download PDFInfo
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- CN203452439U CN203452439U CN201320505791.4U CN201320505791U CN203452439U CN 203452439 U CN203452439 U CN 203452439U CN 201320505791 U CN201320505791 U CN 201320505791U CN 203452439 U CN203452439 U CN 203452439U
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Abstract
The utility model discloses a prestressed reinforcing steel bar and concrete combined steel tube tower column. Seamless steel tubes and steel plates are connected alternately to form an annular structure; reinforcing steel bars are arranged in the seamless steel tubes and concrete is filled into the seamless steel tubes; meanwhile, adjacent sections of tower columns are connected with each other through a flange. Because of combining the prestressed steel concrete steel tubes and the steel plates, the prestressed reinforcing steel bar and concrete combined steel tube tower column has the advantages that the construction is convenient and simple, the construction period is short, the using amount of tower column steel is reduced, the stability of the tower column is enhanced, and the cost is greatly saved.
Description
Technical field
The utility model relates to a kind of tower column structure, relates in particular to a kind of prestressing force steel reinforced concrete combined steel pipe king-post, belongs to wind-power electricity generation and building field.
Background technology
At present, the large-scale king-post of field of wind power generation, major part is to adopt roll of steel plate to make cylindrical shape king-post, in order to resist the top-down moment of tall and slender structure, often needs the steel plate that thickness is very large, causes that rolled steel dosage is large, cost investment is high; Secondly, the cylinder of making king-post is all-in-one-piece, and diameter is larger, is generally 3 meters to 5 meters, and now transportation difficulty and cost of transportation are very high; In addition, king-post does not pass through autofrettage, and when running into high wind, king-post top easily produces larger deflection and rocks under the effect of wind-force; Moreover the king-post of large molded dimension also has the structure that adopts steel concrete formula, this structure is quite heavy, and not only construction cast difficulty is large, and long construction period, and can not realize suitability for industrialized production, therefore invests to build cost and management cost is all quite high.
Utility model content
Utility model object: the purpose of this utility model is to provide a kind of prestressing force steel reinforced concrete combined steel pipe king-post that can reduce rolled steel dosage, minimizing cost, improve king-post stability, assembling convenient transportation, shortening construction period.
Technical scheme: prestressing force steel reinforced concrete combined steel pipe king-post described in the utility model, by seamless steel pipe and steel plate, be alternately connected to form circulus, reinforcing bar fill concrete are set in seamless steel pipe, meanwhile, adjacent towers joint connects by flange.
Wherein, adjacent towers joint is connected with the reinforcing bar in seamless steel pipe by flange.Described steel plate is single or multiple lift steel plate.It between described seamless steel pipe and steel plate, is welding.Described reinforcing bar is finish rolling deformed bar, can be more than two or two and with sheath.The cross section of described seamless steel pipe is oval, guarantees the stability of king-post.Described flange is same footpath flange or Different Diameter flange.The cross section of described king-post is cylindrical or polygon cylinder.Described concrete label is greater than or equal to C40, and for preventing concrete and steel pipe walls unsticking, concrete can adopt slightly expanded concrete.
Due to the constraint of steel pipe and the prestressing force of finish rolling deformed bar, make concrete after the filling high strength stable state in X, Y, Z three dimension stress, and steel pipe plays longitudinal reinforcement, laterally cuff and three effects of construction formwork; Meanwhile, the concrete of filling has limited the unstability of cylinder; Like this, the combining structure that steel pipe forms after fill concrete, has just had very strong anti-column unstability ability.
For guaranteeing the Strength and stability of structure, structure also must meet following requirement:
1, seamless steel pipe is to concrete effect of restraint COEFFICIENT K
ycan not be less than 0.6:
2, cross section steel ratio ρ
cshould be between 0.03～0.08:
ρ
c=A
s/A
c
3, concrete thick wide ratio should be between 0.8～1.6.
In above formula: A
sthe section area of-steel plate, A
c-concrete section area, f
s-steel plate yield strength value, f
cd-concrete crushing strength value.
Beneficial effect: the utility model compared with prior art, its advantage combines for this tower column structure adopts prestressed concrete steel pipe and steel plate, or steel pipe and steel plate are transported to behind scene to concreting again, easy construction is simple, short construction period, reduce king-post rolled steel dosage, greatly saved cost.In steel pipe concreting, finish rolling deformed bar be set apply prestressing force, improved the anti-column unstability ability of cylinder, simultaneously, the steel member using in combining structure can standardized production, be beneficial to the production and processing of production line formula and the preservative treatment of production line formula, greatly reduce manufacturing cost, and seamless steel pipe and steel plate weight are relatively light, transportation more for convenience, lowered cost of transportation, and solved long-distance transport or remote districts or had the road conditions that the transfinite transport restrictions to super large part goods and materials.Fill concrete in steel pipe cavity, has reduced concrete amount, has saved cost, and does not need numerous and diverse assembling reinforcement operation, reduction of erection time.Make full use of finish rolling prestressed reinforcement, steel pipe and concrete advantage, and three is interacted dexterously, than concrete type structural section at the same level, reduce, save material, linear attractive in appearance, reduced or major part has been eliminated the elastic deflection of king-post and rocked, strengthened pylon resistance to capsizing.Can change the diameter of steel pipe according to different king-post requirement for height, thereby change the section area of the mixed earth of king-post, can manufacture ultra-large type king-post like this, but steel increase seldom.Experiment showed, that king-post is higher, economy is better.
Accompanying drawing explanation
Fig. 1 is the assembling sectional top view of the utility model seamless steel pipe and steel plate;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the sectional view that the seamless steel pipe of reinforcing bar and fill concrete is set;
Fig. 4 is package assembly schematic diagram of the present utility model;
Fig. 5 is the C point enlarged drawing of Fig. 4;
The E-E sectional view of Fig. 6 Fig. 4;
Fig. 7 is the G-G sectional view of Fig. 6.
The specific embodiment
As depicted in figs. 1 and 2, will be processed in advance standard compliant seamless steel pipe 1 is welded to connect with individual layer steel plate 2.Steel plate materials is Q345 or higher level hot rolled steel plate, carries out the preservative treatment of galvanizing by dipping on its surface.Seamless steel pipe 1 can customize as requested with the length of individual layer steel plate 2, if traffic condition allows, is generally greater than 20 meters.As shown in Figure 3, in the cavity cylinder of seamless steel pipe 1, put into the reinforcing bar 3 with sheath 5 that can run through whole cylinder, it is finish rolling deformed bar, indented bars for prestressed concrete specifically, that a kind of special shape is with discontinuous externally threaded vertical bar reinforcing bar, this reinforcing bar is at any section, all can be with being with female connector or ground tackle to connect or anchoring, this reinforcing bar 3 also can adopt the just screwed high-strength steel pole at two ends that can reach technical requirements, its diameter is generally greater than 40mm, its tensile strength should be greater than 830Mpa, yield strength should be greater than 730Mpa, sheath 5 is the helical ripple pipe of PVC material or metal material.Concreting 4 in cavity cylinder simultaneously, it is the plain concrete with individual features, has the slump and intensity that applicable the present invention realizes, label should be C40 or more than C40.As Figure 4-Figure 7, when concrete has respective strengths, lifting seamless steel pipe 1 also welds adjacent monolayer steel plate 2, one side of specifically welding respectively the individual layer steel plate 2 of vertical setting seamless steel pipe 1 both sides, then the opposite side at each individual layer steel plate 2 welds another seamless steel pipe 1, alternate combinations is installed first segment polygon tower body successively, tower body bottom is connected with ground by basic flange 9, then the finish rolling deformed bar 3 in stretch-draw first segment tower body Different Diameter adpting flange 7 is installed at first segment tower body top, this Different Diameter flange 7 passes through finish rolling deformed bar nut 8 at bolt hole place anchoring finish rolling deformed bar.When second section or other towers joint are installed, by bolt hole, the finish rolling deformed bar in second section tower body is fixed on Different Diameter flange 7, and the fixedly seamless steel pipe 1 of second layer tower body and individual layer steel plate 2 according to this, determine second section tower body position accurate after in its seamless steel pipe 1 concreting 4, treat that concrete 4 has respective strengths post tensioning finish rolling deformed bar.Residue tower body is installed successively.The material of described same footpath flange 6 or Different Diameter flange 7 is Q345 or higher level material, solid forging machine-shaping.After so tower column structure completes, the wall portion tensile strength of tower body, mainly by finish rolling deformed bar, born, and the compressive strength of tower body and the load on top, mainly by concrete 4, born, secondly the stressed seamless steel pipe 1 that is only, prestressed applying greatly reduced steel plate consumption, saved steel, and, due to the shroud ring effect of steel pipe, limited the unstability of concrete 4 vertical cylinders, greatly reduced concrete consumption, simultaneously owing to having adopted autofrettage, the deflection major part of rocking of tower top disappears.
Claims (10)
1. a prestressing force steel reinforced concrete combined steel pipe king-post, it is characterized in that: by seamless steel pipe (1) and steel plate (2), be alternately connected to form circulus, reinforcing bar (3) fill concrete (4) are set in seamless steel pipe (1), and meanwhile, adjacent towers joint connects by flange.
2. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1, is characterized in that: described steel plate (2) is single or multiple lift steel plate.
3. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1 and 2, is characterized in that: between described seamless steel pipe (1) and steel plate (2), be welding.
4. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1, is characterized in that: described reinforcing bar (3) is finish rolling deformed bar.
5. according to the prestressing force steel reinforced concrete combined steel pipe king-post described in claim 1 or 4, it is characterized in that: the quantity of described reinforcing bar (3) is more than two or two, and with sheath (5).
6. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1, is characterized in that: adjacent towers joint is connected with the reinforcing bar (3) in seamless steel pipe (1) by flange.
7. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1, is characterized in that: described flange is with footpath flange (6) or Different Diameter flange (7).
8. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1, is characterized in that: the cross section of described king-post is cylindrical or polygon cylinder.
9. prestressing force steel reinforced concrete combined steel pipe king-post according to claim 1, is characterized in that: the cross section of described seamless steel pipe (1) is for oval.
10. according to the prestressing force steel reinforced concrete combined steel pipe king-post described in claim 1 or 9, it is characterized in that: described concrete (4) is slightly expanded concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505791.4U CN203452439U (en) | 2013-08-19 | 2013-08-19 | Prestressed reinforcing steel bar and concrete combined steel tube tower column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505791.4U CN203452439U (en) | 2013-08-19 | 2013-08-19 | Prestressed reinforcing steel bar and concrete combined steel tube tower column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452439U true CN203452439U (en) | 2014-02-26 |
Family
ID=50132326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320505791.4U Expired - Fee Related CN203452439U (en) | 2013-08-19 | 2013-08-19 | Prestressed reinforcing steel bar and concrete combined steel tube tower column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452439U (en) |
-
2013
- 2013-08-19 CN CN201320505791.4U patent/CN203452439U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140226 Termination date: 20170819 |