CN2581517Y - Cross ribbed steel fibre concrete manhole cover - Google Patents
Cross ribbed steel fibre concrete manhole cover Download PDFInfo
- Publication number
- CN2581517Y CN2581517Y CN 02238890 CN02238890U CN2581517Y CN 2581517 Y CN2581517 Y CN 2581517Y CN 02238890 CN02238890 CN 02238890 CN 02238890 U CN02238890 U CN 02238890U CN 2581517 Y CN2581517 Y CN 2581517Y
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- CN
- China
- Prior art keywords
- manhole cover
- steel
- concrete
- rib
- inspection manhole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a cross ribbed steel fibre concrete inspection manhole cover. The bottom of the utility model is provided crossed ribs having a width about 200 mm, four phi 8 bent steel bars are arranged in the ribs, and the circumference of the utility model is provided with a steel plate hoop having the thickness of 4 mm. The steel plate hoop is connected with the bent steel bars and poured into a shape via C 50 concrete. The manhole cover has the advantages of convenient manufacture, material saving and high bearing capacity. The steel fibre concrete inspection manhole cover made in the method can increase strength by 80 % as compared with a single-rib type steel fibre concrete inspection manhole cover, save steel and concrete more than 30 % as compared with a flat plate type concrete inspection manhole cover and reduce cost by 15 % compared with a concrete inspection manhole cover having ribs in the shape like the Chinese character 'jing'.
Description
Affiliated technical field
A kind of cross rib steel fibrous concrete manhole cover belongs to precast concrete goods field.
Background technology
The steel fibrous concrete manhole cover has been widely used in motor vehicles such as urban road, highway, biotope and has travelled or park well lid on the manhole of place, also is used for the passage that greenbelt etc. forbids that machine state motor vehicle travels or park, the well lid on the manhole of place.Its profile is divided circular and square two classes.The bottom surface is the flat well lid of the title on plane, the title well lid with ribbing that the bottom surface is with ribbing.What well lid domestic production with ribbing was more is the well lid of band groined type rib, and promptly rib is a well word shape.Secondly be single rib steel fibrous concrete manhole cover, this type of well lid has patent, and the patent No. is 02206762.2.The reinforcement manner of single rib well lid is as follows: the indented bars of 10 Φ 10 of landscape configuration, and the screw-thread steel of a vertical Φ 10 is used for the location of horizontal bar, and the centre is a flank, and other establishes two Φ 16 screw-thread steels and bends up muscle, the wide 69mm of flank.Single rib well lid has characteristics such as easy to make, economical with materials, but its supporting capacity is relatively poor relatively.
Summary of the invention
A kind of easy to make in order to design, save material and the strong well lid of supporting capacity, the spy has conceived the utility model.
The utility model is a kind of concrete inspection well lid with the cross rib, and its profile is divided circular and square two kinds, and external diameter (length of side) is that thickness is smaller or equal to 100mm between 670～800mm.The cross ribs is established in the bottom, and the about 200mm of rib width respectively is furnished with 4 Φ 8 bent-up bars in the rib, and periphery is established 4mm steel plate hoop.As the length of side is the square manhole cover of B level of 670mm, promptly is used for the well lid of urban road, and the limit height is 45mm, the high 55mm of cross rib, and rib width is 210mm, establishes 4 Φ 8 bent-up bars in the rib, periphery is established 4mm steel plate hoop, uses C50 concrete casting injection forming.
Cross rib steel fibrous concrete manhole cover is under the same size condition, improve bearing capacity than single rib steel fibrous concrete manhole cover and reach 80%, compare with flat well lid, under same diameter (circle) or the length of side (square) condition, reach identical supporting capacity and can save steel and concrete more than 30%, it is simple that groined type well lid with ribbing commonly used is at present made moulding, can reduce cost 15%.
Description of drawings
Accompanying drawing is sectional drawing of the present utility model and ground plan, and Fig. 1 is the center line sectional drawing, and Fig. 2 is a ground plan.(1) is the cross rib among the figure, and (2) are steel plate hoop, and (3) are bent-up bar.
The specific embodiment
Most preferred embodiment of the present utility model is the square manhole cover of B level of length of side 670mm, and the limit height is 45mm, and periphery is established 4mm steel plate hoop, the high 55mm of cross rib, and wide 210mm respectively joins 4 Φ 8 bent-up bars in the rib, with C50 steel fibrous concrete moulding by casting.This well lid rupture load can reach 350KN.
Claims (1)
1. cross rib steel fibrous concrete manhole cover, steel plate hoop is established in the outside, and bent-up bar is established at rib shape position, with C50 concrete casting injection forming, establish the wide cross rib of 200mm that is bottom it is characterized in that, the bent-up bar of respectively joining 4 Φ 8 in the rib, bent-up bar links to each other with steel plate hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238890 CN2581517Y (en) | 2002-06-17 | 2002-06-17 | Cross ribbed steel fibre concrete manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238890 CN2581517Y (en) | 2002-06-17 | 2002-06-17 | Cross ribbed steel fibre concrete manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581517Y true CN2581517Y (en) | 2003-10-22 |
Family
ID=33712464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02238890 Expired - Fee Related CN2581517Y (en) | 2002-06-17 | 2002-06-17 | Cross ribbed steel fibre concrete manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581517Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276789A (en) * | 2013-06-18 | 2013-09-04 | 江汇 | Anti-washing-away, anti-rollover and anti-breakage manhole lid |
-
2002
- 2002-06-17 CN CN 02238890 patent/CN2581517Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276789A (en) * | 2013-06-18 | 2013-09-04 | 江汇 | Anti-washing-away, anti-rollover and anti-breakage manhole lid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031022 |