CN204004850U - A kind of heavy caliber is given, waste pipe - Google Patents
A kind of heavy caliber is given, waste pipe Download PDFInfo
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- CN204004850U CN204004850U CN201420316765.1U CN201420316765U CN204004850U CN 204004850 U CN204004850 U CN 204004850U CN 201420316765 U CN201420316765 U CN 201420316765U CN 204004850 U CN204004850 U CN 204004850U
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- waste pipe
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- 239000002699 waste material Substances 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 107
- 239000010959 steel Substances 0.000 claims abstract description 107
- 239000004567 concrete Substances 0.000 claims abstract description 87
- 230000002708 enhancing effect Effects 0.000 claims abstract description 32
- 238000005260 corrosion Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 13
- 238000005336 cracking Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 239000004574 high-performance concrete Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Described heavy caliber is given, waste pipe is constructed as follows: steel cylinder (1), concrete layer (2), enhancing structure (3) and Concrete Filled structure (5); Described enhancing structure (3) is wound around and is weldingly fixed on steel cylinder (1) outside; The outside of the inner side of steel cylinder (1) and enhancing structure (3) is provided with concrete layer (2), and described Concrete Filled structure (5) is located at steel cylinder (1), strengthens in the space between structure (3) and concrete layer (2).Heavy caliber described in the utility model is given, waste pipe, and integrated structure design reduces production costs when meeting Rigidity and strength, and anti-corrosion effects is good, durable in use, makes process simple, has larger society and economic value.
Description
Technical field
The utility model relates to structural design and the applied technical field of waste pipe, provides especially a kind of heavy caliber to, waste pipe.
Background technique
Along with the sustained and rapid development of China's economy, urban size expands rapidly, and supplying water appears in increasing city, draining difficulty.Build extensive water delivery engineering very urgent, adopting pipe laying waterline is necessary selection scheme.At present, alternative pipeline has steel cylinder, concrete pipe, concrete reinforced pipe, prestressed concrete pipe.Wherein, the maximum nominal bore diameter that does not configure the concrete pipe of steel structure in tube wall only has 600mm, is only suitable for the little discharge capacity applications that supplies, and extensive water delivery engineering must be selected other several pipelines.The principal element of considering while selecting pipeline has: reliable degree, construction and two aspects of maintenance cost.
Steel cylinder is large from heavy and light, rigidity, but cost high, be subject to environmental corrosion, later maintenance expense is high.For reducing engineering cost, builder is current is more to select steel and the compound pipeline of concrete.Except cost is low, bi-material has made up weakness each other mutually, performance strong point separately, thus make steel/concrete composite pipe there is very high bearing capacity, general all higher than the steel and the independent bearing capacity sum of concrete that form pipeline.In addition, the alkalescence due to concrete self can, so that passivation occurs on steel surface, improve the corrosion resistance of steel in concrete greatly.
But the steel structure concrete pipe of existing Production and application standard exists again deficiency at present, is restricting and is applying.Steel in steel structure concrete pipe mostly adopt high tensile steel at present, and object is to improve bearing capacity and reduce deadweight.As < < push pipe should meet < < JC/T540 > > with the Twisted Steel of stipulating in reinforced concrete pipe standards > >, stipulate that the minimum yield strength of Deformed Steel Bars used is 550MPa.And the yield strength of cold drawn wire in prestressed concrete pipe (PCCP) is generally more than 1550MPa, according to IISI's mechanical properties of materials---intensity is classified, this class steel structure belong to high-strength steel (270---700MPa) and super-high strength steel (>700MPa).Practice shows, this class steel counter stress corrosion cracking sensitivity.Stress corrosion cracking is the cracking that material causes under stress and corrosive environment acting in conjunction, and this is stress and the symphyogenetic result of corrosion.If only have an aspect, stress or medium effect, cracking destruction can not occur, but when the two synergy, but can ftracture very soon.Therefore, while there is stress corrosion cracking, stress may be very low, and the corrosivity of medium may be also very weak, and also, just due to so, stress corrosion cracking is often ignored, and causes contingency constantly to occur.Conventionally in specific industrial environment, there is stress corrosion cracking in Ordinary Steel, high-strength steel in physical environment, as there is stress corrosion cracking in rainwater, seawater.In addition, due to the development of the modern industry, material working environment is more and more harsher, and stress corrosion problem also becomes increasingly conspicuous.
The concrete pipe made from current standard, adopt high-strength steel structure is the in the situation that of its concrete degradation failure, and risk can constantly increase.And present stage to transporting on a large scale engineering, as the life requirement of waterline also improved a lot more in the past, from 20-30, be increased to 50-100, therefore, need the better tubing of development durability badly to meet the demands.
People urgently wish to obtain that the good heavy caliber of a kind of technique effect is given, waste pipe.
Summary of the invention
The purpose of this utility model is to provide that the good heavy caliber of a kind of technique effect is given, waste pipe.
Heavy caliber described in the utility model is given, waste pipe is constructed as follows: steel cylinder 1, concrete layer 2, enhancing structure 3 and Concrete Filled structure 5; Described enhancing structure 3 is wound around and is weldingly fixed on steel cylinder 1 outside; The outside of the inner side of steel cylinder 1 and enhancing structure 3 is provided with concrete layer 2, and described Concrete Filled structure 5 is located at steel cylinder 1, strengthens in the space between structure 3 and concrete layer 2.
The arranged outside of described concrete layer 2 has anticorrosive coat.
Described enhancing structure 3 is specially waveform, U-shaped, V-arrangement steel band.
Described enhancing structure 3 thickness are 1～5mm, are highly 20mm～150mm.When meeting rigidity and hardness, save raw material, reduce weight simultaneously.
Described enhancing structure 3 and steel cylinder 1 be 5 °～90 ° of angles radially; Described angle is: strengthen welding line and this angle at steel cylinder 1 radial plane internal tangent of structure on steel cylinder 1; As steel cylinder 1 is launched, for welding line and angle theta radially, at 90 o'clock, strengthen structure 3 and be wound around along steel cylinder 1 axial direction.
Strengthen structure 3 and depend on design strength, fabricating cost.Minimum is 1, now strengthens structure 3 and at least completes 1 circumference.The height that strengthens structure 3, depends on design strength, fabricating cost.Increasing enhancing structure 3 highly can effectively increase and be subject to force intensity, need to increase cost.
The outer surface of described steel cylinder 1 is made rough surface by modes such as sandblast hackings, and the object of doing is like this effectively to increase concrete combination force.
On described steel cylinder 1, also offer hole structure 4, concrete layer 2 is connected with Concrete Filled structure 5, tie point plays anchorage effect to outer concrete.Increase the adhesive strength of concrete layer 2, Concrete Filled structure 5 and steel cylinder 1.
Described steel cylinder 1 can be cylinder, can be also square tube, and square tube is applicable to the environment that pipeline stability is had relatively high expectations, as cross-over pipe etc.
Described steel cylinder 1 and enhancing structure 3 all adopt Ordinary Steel.Ordinary Steel good corrosion resistance, and cost is low.The price of having avoided employing high tensile steel to bring is high, counter stress corrosion cracking sensitive issue.
Described concrete layer 2 and Concrete Filled structure 5 are self-compact concrete, are a kind of of high performance concrete, and its topmost character is under deadweight, need not vibrate, and the space in filling template, forms closely knit concrete structure voluntarily.In addition it also has good mechanical property and endurance quality, this is a kind ofly from concrete mix, to start until the high performance concrete all considered of the spreadable life hardening comprehensively, its superiority is mainly manifested in: improve concrete density and durability, avoid Lou shaking, cross the personal factor in the construction such as shake and arrangement of reinforcement is intensive, structure forms the impacts of adverse condition on construction quality such as complexity; Reduce operation intensity, save labour, facility and power consumption vibrate; Can eliminate the noise that vibrates, improve environment, alleviate the contradiction that construction disturbs residents; Simplify working process, the reduction of erection time, raise the efficiency.
Self-compact concrete, according to the code requirement of relevant self-compact concrete preparation and construction, adopt slump 250mm, divergence 600mm, the poor 25mm in middle limit, flows down time 6-16S, and four indices is feasible, there are good cohesive quality, mobility and water retention, make concrete self-compacting.
Described heavy caliber is given, the weight of waste pipe is approaching with the PCCP of double-layer wire pipe, and higher than individual layer steel wire, PCCP manages approximately 2%.The concrete reinforced pipe of using far below jacking, weight declines approximately 30%, and this can reduce transportation and construction cost for jacking construction.Certainly, the weight of all kinds of steel structure concrete pipe is far above steel pipe.
From Economy comparison, the market price according to the fourth quater in 2013, comprises processing cost, and contrast comprises all kinds of tubing of steel pipe.Therefrom find out, the price of steel pipe, far above steel and concrete structure pipe, doubles above.And in steel and concrete structure pipe, the reinforced concrete cost of pipe jacking method is the highest, as adopted, heavy caliber described in the utility model is given, waste pipe, and cost 30% left and right that will decline, manages low 12% left and right compared with double-layer wire PCCP, than individual layer steel wire PCCP, manages high 3% left and right.
Heavy caliber described in the utility model is given, waste pipe, and integrated structure design reduces production costs when meeting Rigidity and strength, and anti-corrosion effects is good, durable in use, makes process simple, has larger society and economic value.
Accompanying drawing explanation
Fig. 1 is that heavy caliber is given, waste pipe overall structure schematic diagram;
Fig. 2 is for strengthening structure and steel tube structure schematic diagram
Fig. 3 is for strengthening radially angle schematic diagram of structure and steel cylinder;
Fig. 4 is the rough schematic surface of steel cylinder;
Fig. 5 is the hole structure schematic diagram on steel cylinder.
Embodiment
Embodiment 1
Described in the present embodiment, heavy caliber is given, waste pipe is constructed as follows: steel cylinder 1, concrete layer 2, strengthen structure 3 and Concrete Filled structure 5; Described enhancing structure 3 is wound around and is weldingly fixed on steel cylinder 1 outside; The outside of the inner side of steel cylinder 1 and enhancing structure 3 is provided with concrete layer 2, and described Concrete Filled structure 5 is located at steel cylinder 1, strengthens in the space between structure 3 and concrete layer 2.
The arranged outside of described concrete layer 2 has anticorrosive coat.
Described enhancing structure 3 is specially waveform, U-shaped, V-arrangement steel band.
Described enhancing structure 3 thickness are 1～5mm, are highly 20mm～150mm.When meeting rigidity and hardness, save raw material, reduce weight simultaneously.
Described enhancing structure 3 and steel cylinder 1 be 5 °～90 ° of angles radially; Described angle is: strengthen welding line and this angle at steel cylinder 1 radial plane internal tangent of structure on steel cylinder 1; As steel cylinder 1 is launched, for welding line and angle theta radially, at 90 o'clock, strengthen structure 3 along steel cylinder 1 axial direction.
Strengthen structure 3 and depend on design strength, fabricating cost.Minimum is 1, now strengthens structure 3 and at least completes 1 circumference.The height that strengthens structure 3, depends on design strength, fabricating cost.Increasing enhancing structure 3 highly can effectively increase and be subject to force intensity, need to increase cost.
The outer surface of described steel cylinder 1 is made rough surface by modes such as sandblast hackings, and the object of doing is like this effectively to increase concrete combination force.
On described steel cylinder 1, also offer hole structure 4, concrete layer 2 is connected with Concrete Filled structure 5, tie point plays anchorage effect to outer concrete.Increase the adhesive strength of concrete layer 2, Concrete Filled structure 5 and steel cylinder 1.
Described steel cylinder 1 can be cylinder, can be also square tube, and square tube is applicable to the environment that pipeline stability is had relatively high expectations, as cross-over pipe etc.
Described steel cylinder 1 and enhancing structure 3 all adopt Ordinary Steel.Ordinary Steel good corrosion resistance, and cost is low.The price of having avoided employing high tensile steel to bring is high, counter stress corrosion cracking sensitive issue.
Described concrete layer 2 and Concrete Filled structure 5 are self-compact concrete, are a kind of of high performance concrete, and its topmost character is under deadweight, need not vibrate, and the space in filling template, forms closely knit concrete structure voluntarily.In addition it also has good mechanical property and endurance quality, this is a kind ofly from concrete mix, to start until the high performance concrete all considered of the spreadable life hardening comprehensively, its superiority is mainly manifested in: improve concrete density and durability, avoid Lou shaking, cross the personal factor in the construction such as shake and arrangement of reinforcement is intensive, structure forms the impacts of adverse condition on construction quality such as complexity; Reduce operation intensity, save labour, facility and power consumption vibrate; Can eliminate the noise that vibrates, improve environment, alleviate the contradiction that construction disturbs residents; Simplify working process, the reduction of erection time, raise the efficiency.
Self-compact concrete, according to the code requirement of relevant self-compact concrete preparation and construction, adopt slump 250mm, divergence 600mm, the poor 25mm in middle limit, flows down time 6-16S, and four indices is feasible, there are good cohesive quality, mobility and water retention, make concrete self-compacting.
Described heavy caliber is given, the weight of waste pipe is approaching with the PCCP of double-layer wire pipe, and higher than individual layer steel wire, PCCP manages approximately 2%.The concrete reinforced pipe of using far below jacking, weight declines approximately 30%, and this can reduce transportation and construction cost for jacking construction.Certainly, the weight of all kinds of steel structure concrete pipe is far above steel pipe.
From Economy comparison, the market price according to the fourth quater in 2013, comprises processing cost, and contrast comprises all kinds of tubing of steel pipe.Therefrom find out, the price of steel pipe, far above steel and concrete structure pipe, doubles above.And in steel and concrete structure pipe, the reinforced concrete cost of pipe jacking method is the highest, as adopted, heavy caliber described in the utility model is given, waste pipe, and cost 30% left and right that will decline, manages low 12% left and right compared with double-layer wire PCCP, than individual layer steel wire PCCP, manages high 3% left and right.
Heavy caliber described in the present embodiment is given, waste pipe, and integrated structure design reduces production costs when meeting Rigidity and strength, and anti-corrosion effects is good, durable in use, makes process simple, has larger society and economic value.
Embodiment 2
Described in the present embodiment, heavy caliber is given, waste pipe is constructed as follows: steel cylinder 1, concrete layer 2, strengthen structure 3 and Concrete Filled structure 5; Described enhancing structure 3 is wound around and is weldingly fixed on steel cylinder 1 outside; The outside of the inner side of steel cylinder 1 and enhancing structure 3 is provided with concrete layer 2, and described Concrete Filled structure 5 is located at steel cylinder 1, strengthens in the space between structure 3 and concrete layer 2.
Described steel cylinder 1 and enhancing structure 3 adopt and should be by the GB requirement of U.S.'s ANSI/AWWA C301 standard and promulgation: Cold Rolled Sheet Steel or surrender that surrender is greater than 195Mpa are greater than 205Mpa hot rolled steel sheet.
The self-compact concrete that described concrete layer 2 and Concrete Filled structure 5 adopt more than C40.
The diameter of described steel cylinder 1 is 3000mm, and steel cylinder 1 thickness is 2mm, and concrete layer 2 thickness outside steel cylinder 1 are 50mm, concrete layer 2 thickness in steel cylinder 1 are 50mm, the height of described enhancing structure 3 is 120mm, and the thickness that strengthens structure 3 is 2mm, strengthens radially 30～45 ° of angles of structure 3 and steel cylinder 1.
Embodiment 3
Described in the present embodiment, heavy caliber is given, waste pipe is constructed as follows: steel cylinder 1, concrete layer 2, strengthen structure 3 and Concrete Filled structure 5; Described enhancing structure 3 is wound around and is weldingly fixed on steel cylinder 1 outside; The outside of the inner side of steel cylinder 1 and enhancing structure 3 is provided with concrete layer 2, and described Concrete Filled structure 5 is located at steel cylinder 1, strengthens in the space between structure 3 and concrete layer 2.
Described enhancing structure 3 and steel cylinder 1 be 50～90 ° of angles radially.
Claims (9)
- Heavy caliber give, a waste pipe, it is characterized in that: described heavy caliber is constructed as follows to, waste pipe: steel cylinder (1), concrete layer (2), strengthen structure (3) and Concrete Filled structure (5); Described enhancing structure (3) is wound around and is weldingly fixed on steel cylinder (1) outside; The outside of the inner side of steel cylinder (1) and enhancing structure (3) is provided with concrete layer (2), and described Concrete Filled structure (5) is located at steel cylinder (1), strengthens in the space between structure (3) and concrete layer (2).
- According to heavy caliber described in claim 1 give, waste pipe, it is characterized in that: described enhancing structure (3) is specially waveform, U-shaped, V-arrangement steel band.
- According to heavy caliber described in claim 1 give, waste pipe, it is characterized in that: described enhancing structure (3) and steel cylinder (1) be 5 °～90 ° of angles radially.
- According to heavy caliber described in claim 2 give, waste pipe, it is characterized in that: described enhancing structure (3) and steel cylinder (1) be 5 °～90 ° of angles radially.
- According to the described heavy caliber of one of claim 1～4 give, waste pipe, it is characterized in that: the outer surface of described steel cylinder (1) is rough surface.
- According to the described heavy caliber of one of claim 1～4 give, waste pipe, it is characterized in that: on described steel cylinder (1), be provided with through-hole structure (4).
- According to heavy caliber described in claim 5 give, waste pipe, it is characterized in that: on described steel cylinder (1), be provided with through-hole structure (4).
- According to heavy caliber described in claim 6 give, waste pipe, it is characterized in that: described enhancing structure (3) thickness is 1～5mm, is highly 20mm～150mm.
- According to heavy caliber described in claim 7 give, waste pipe, it is characterized in that: described enhancing structure (3) thickness is 1～5mm, is highly 20mm～150mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316765.1U CN204004850U (en) | 2014-06-13 | 2014-06-13 | A kind of heavy caliber is given, waste pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420316765.1U CN204004850U (en) | 2014-06-13 | 2014-06-13 | A kind of heavy caliber is given, waste pipe |
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| CN204004850U true CN204004850U (en) | 2014-12-10 |
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| CN201420316765.1U Active CN204004850U (en) | 2014-06-13 | 2014-06-13 | A kind of heavy caliber is given, waste pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313304A (en) * | 2016-08-28 | 2017-01-11 | 葫芦岛市北方金属制品有限公司 | Method for producing jacking concrete drainage pipe from prestress steel bar framework |
-
2014
- 2014-06-13 CN CN201420316765.1U patent/CN204004850U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106313304A (en) * | 2016-08-28 | 2017-01-11 | 葫芦岛市北方金属制品有限公司 | Method for producing jacking concrete drainage pipe from prestress steel bar framework |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |