CN103486344A - Concrete pipe with round inner part, oval outer part and base - Google Patents
Concrete pipe with round inner part, oval outer part and base Download PDFInfo
- Publication number
- CN103486344A CN103486344A CN201310375446.8A CN201310375446A CN103486344A CN 103486344 A CN103486344 A CN 103486344A CN 201310375446 A CN201310375446 A CN 201310375446A CN 103486344 A CN103486344 A CN 103486344A
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- Prior art keywords
- concrete pipe
- base
- pipe
- circular
- framework
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/153—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and concrete with or without reinforcement
Abstract
A concrete pipe with a round inner part, an oval outer part and a base comprises a pipe body and a steel bar skeleton, wherein the profile of the pipe body is oval; an inner hole and the steel bar skeleton are regularly round; the base is arranged at the bottom of the pipe body. By changing the pipe mode of the concrete pipe, the reasonability of the structure stress of the concrete pipe is improved, so the carrying capacity of the concrete pipe is improved, and the use amount of material is reduced.
Description
Technical field:
The invention belongs to the concrete duct class, be specifically related to the outer ellipse concrete pipe with base of a kind of inner circle, this concrete pipe is suitable as the tubing of underground with no pressure delivering rainwater, sewage.
Background technique:
Concrete pipe has good anti-cracking function and bearing capacity, can be used for high overburden layer pipeline and simple and easy basis.Circular concrete pipe manufacturing process is ripe, convenient for production, structure stress is favourable, the materials'use amount is less, and cost is comparatively cheap, thereby circular concrete pipe is widely used in water supply and sewerage pipeline.
Circular concrete pipe, in conduit running, relies on the reinforcing bar be configured in tube wall to bear external load, and its bearing capacity, except outside the Pass the phase of the consumption with reinforcing bar, also is subject to the position influence of reinforcing bar in concrete pipe.Known from reinforced concrete construction is learned, reinforcing bar position in the tube wall section is very large on the impact of the effective height of reinforcing steel bar bear.Same amount of reinforcement, can have larger bearing capacity.
The position of circular concrete pipe reinforcing bar in the tube wall section as shown in Figure 1, D in figure
0for circular concrete pipe diameter of bore footpath, D
1for circular concrete pipe external diameter, d
1for internal layer reinforcing steel bar center diameter, d
2for outer reinforcement central diameter, h
01for internal layer reinforcing bar bending resistance effective height, h
02for outer reinforcement bending resistance effective height.Inside and outside profile line and the Framework Of Steel Reinforcement of this concrete pipe are circle.The inside and outside two-layer reinforcing bar of Framework Of Steel Reinforcement in the tube wall section along the bending resistance effective height h of circumference each point
01, h
02impartial.
Because circular concrete pipe is embedded in soil layer usually, primary load is the moment of flexure that vertical earth pressure causes.According to the earth pressure principle, the moment of flexure produced at Guan Ding, the pipe end makes tube wall internal layer tension, numerical value maximum.The moment of flexure produced in the pipe both sides makes the outer tension of tube wall.
Thereby in circular concrete pipe, amount of reinforcement depends mainly on the internal layer amount of reinforcement, the internal layer reinforcing bar reduces, and is the principal element that reduces concrete pipe material consumption and cost.
Summary of the invention:
Purpose of the present invention just is to provide the ellipse concrete pipe with base outside a kind of inner circle, and this concrete pipe, by changing the concrete pipe cast, improves the rationality of concrete pipe structure stress, thereby reaches bearing capacity, the reduction material consumption that improves concrete pipe.
As above design, technological scheme of the present invention is: the outer ellipse concrete pipe with base of a kind of inner circle, comprise body and Framework Of Steel Reinforcement, it is characterized in that: the outer contour of body is for oval, and endoporus and Framework Of Steel Reinforcement are positive circular, and the body bottom is shaped with base.
Above-mentioned Framework Of Steel Reinforcement is positive circular individual layer Framework Of Steel Reinforcement or positive Double Layer Circular skeleton.
The Interface Shape of above-mentioned body is identical with former circular concrete pipe with size.
Above-mentioned base is flat shape.
The present invention has following advantage and good effect:
1, be circle because the present invention keeps the endoporus of former concrete pipe, therefore can keep the hydraulic characteristic of concrete pipe and original circular concrete pipe constant.
2, because the present invention keeps former concrete pipe Framework Of Steel Reinforcement used still for circular, make original Making of reinforcement cage technique constant, thereby simplified production technology and operational sequence.
3, be oval outer contour because the present invention changes the circular outer contour of former concrete pipe, increase the bending resistance effective height of maximum weighted point, can reach and improve the concrete pipe bearing capacity or reduce material consumption.
4, because the present invention has increased concrete cradle, increased the bearing capacity of concrete pipe, simplified construction process, reduced operating expenses.
5, because the present invention makes the Interface Shape of concrete pipe identical with former circular concrete pipe with size, thereby, the general interchangeability with original circular concrete pipe there is.
The accompanying drawing explanation:
Fig. 1 is circular concrete pipe internal and external contour line and internal and external layer reinforcement location schematic diagram;
Fig. 2 is section configuration schematic diagram of the present invention.
Embodiment:
As shown in Figure 2: D in figure
0for the ellipse shape concrete pipe diameter of bore of circle; H
1for oval concrete pipe vertical height (major diameter); B
1for oval concrete pipe horizontal width (oval minor axis); B
dfor the ellipse shape concrete pipe base width of circle; d
1for oval concrete pipe top, lower tube wall thickness; d
2for oval concrete pipe side direction belly pipe thickness; h
01for internal layer reinforcing bar bending resistance effective height; h
02for outer reinforcement bending resistance effective height.
As shown in Figure 2: the outer contour of body 1 of the present invention is oval, and endoporus and Framework Of Steel Reinforcement (comprising internal layer reinforcing bar 3 and outer reinforcement 4) are for positive circular, and the body bottom is shaped with flat shape base 2.The Interface Shape of above-mentioned body is identical with former circular concrete pipe with size, can be two socket interfaces of steel bellmouth interface, the glass reinforced plastic socket interface of flexible interface, the two socket interfaces of glass fibre reinforced plastics and flexible interface of tongue and groove, the flexible interface of bell socket, the flexible interface of straight cut, rigidity tongue and groove, flexible interface.
As shown in Figure 2: the horizontal width B of oval concrete pipe of the present invention
1identical with the width of circular concrete pipe.Oval concrete pipe both sides ventrad pipe thickness d
2identical with the pipe thickness of circular concrete pipe.Oval concrete pipe top, lower tube wall thickness d
1be according to the structural requirement thickening, make pipe thickness from concrete pipe both sides ventrad pipe thickness d
2to top gradually from d
2thicken to d
1.
As shown in Figure 2: the Framework Of Steel Reinforcement of the present invention's configuration, if double-deck skeleton, the internal layer reinforcing bar is consistent along even circumferential with the distance (internal layer thickness of protection tier) of inner circle profile line.The distance of outer reinforcement and outer elliptic wheel profile (outer reinforcement protective layer thickness), by the h of both sides belly
02progressive additive is to the pipe top and the h of pipe bottom
01.
The present invention changes the outer contour of circular concrete pipe, by circle, changes ellipse into, and endoporus and Framework Of Steel Reinforcement (individual layer reinforcing bar or double steel bar) are still circular.Like this, the wall thickness of concrete pipe (oval concrete pipe top, lower tube wall thickness d
1with oval concrete pipe side direction belly pipe thickness d
2), the distance of outer contour and outer reinforcement, by equalization, become unequal, top and bottom maximum, both sides belly minimum, make the bending resistance effective height h of top and bottom internal layer reinforcing bar
01strengthen, can under the condition that does not increase amount of reinforcement, increase the bearing capacity of concrete pipe, or constant and change few amount of reinforcement in the bearing capacity that keeps original grade concrete pipe, reach the effect of saving material.
The present invention is shaped with flat shape base 2 by the concrete pipe bottom, is equivalent to be prefabricated with concrete foundation on pipe, with circular concrete pipe, compares, and can reduce requirement and raising concrete pipe bearing capacity to foundation bearing capacity.Simultaneously, pipeline backfill soil layer compacting is easy to operate, accelerate speed of application, guarantee closely knit effect, simplifies construction, cost reduction.Apply more aobvious its superiority in the unfavorable foundation soft layer.
Claims (4)
1. the outer ellipse concrete pipe with base of inner circle, comprise body and Framework Of Steel Reinforcement, it is characterized in that: the outer contour of body is for oval, and endoporus and Framework Of Steel Reinforcement are positive circular, and the body bottom is shaped with base.
2. the outer ellipse concrete pipe with base of inner circle according to claim 1, it is characterized in that: above-mentioned Framework Of Steel Reinforcement is positive circular individual layer Framework Of Steel Reinforcement or positive Double Layer Circular skeleton.
3. the outer ellipse concrete pipe with base of inner circle according to claim 1, it is characterized in that: the Interface Shape of above-mentioned body is identical with former circular concrete pipe with size.
4. the outer ellipse concrete pipe with base of inner circle according to claim 1, it is characterized in that: above-mentioned base is flat shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310375446.8A CN103486344A (en) | 2013-08-26 | 2013-08-26 | Concrete pipe with round inner part, oval outer part and base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310375446.8A CN103486344A (en) | 2013-08-26 | 2013-08-26 | Concrete pipe with round inner part, oval outer part and base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103486344A true CN103486344A (en) | 2014-01-01 |
Family
ID=49826814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310375446.8A Pending CN103486344A (en) | 2013-08-26 | 2013-08-26 | Concrete pipe with round inner part, oval outer part and base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486344A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013393A (en) * | 2016-06-20 | 2016-10-12 | 北京市市政工程研究院 | Spigot and socket type RPC thin-wall oval-cross-section pipe and construction method thereof |
| CN110578837A (en) * | 2018-06-11 | 2019-12-17 | 四川龙申建设有限公司 | Novel high-bearing special-shaped PCCP (prestressed concrete cylinder pipe) and manufacturing method thereof |
| CN112145814A (en) * | 2020-09-24 | 2020-12-29 | 武汉大学 | Slurry shield wear-resistant slurry pipe for sandy gravel-cobble stratum |
-
2013
- 2013-08-26 CN CN201310375446.8A patent/CN103486344A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013393A (en) * | 2016-06-20 | 2016-10-12 | 北京市市政工程研究院 | Spigot and socket type RPC thin-wall oval-cross-section pipe and construction method thereof |
| CN110578837A (en) * | 2018-06-11 | 2019-12-17 | 四川龙申建设有限公司 | Novel high-bearing special-shaped PCCP (prestressed concrete cylinder pipe) and manufacturing method thereof |
| CN112145814A (en) * | 2020-09-24 | 2020-12-29 | 武汉大学 | Slurry shield wear-resistant slurry pipe for sandy gravel-cobble stratum |
| CN112145814B (en) * | 2020-09-24 | 2022-04-15 | 武汉大学 | Slurry shield wear-resistant slurry pipe for sandy gravel-cobble stratum |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |