CN201265195Y - Polypropylene fiber reinforced polymer concrete rainwater grid - Google Patents
Polypropylene fiber reinforced polymer concrete rainwater grid Download PDFInfo
- Publication number
- CN201265195Y CN201265195Y CNU2008201384085U CN200820138408U CN201265195Y CN 201265195 Y CN201265195 Y CN 201265195Y CN U2008201384085 U CNU2008201384085 U CN U2008201384085U CN 200820138408 U CN200820138408 U CN 200820138408U CN 201265195 Y CN201265195 Y CN 201265195Y
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- China
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- polymer concrete
- polypropylene fibre
- strengthens
- steel framework
- fiber reinforced
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Abstract
The utility model relates to a polypropylene fiber reinforced polymer concrete rainwater grate which comprises a rectangular steel frame and polypropylene fiber reinforced polymer concrete cast in the rectangular steel frame; the rectangular steel frame consists of welded flat steel; steel bar sets which are arranged with equal spacing between are vertically welded between two long sides of the rectangular steel frame; and a single row of holes are arranged on the polypropylene fiber reinforced polymer concrete between every two adjacent steel bar sets. The utility model provides a polypropylene fiber reinforced polymer concrete rainwater grate which has higher anti-cracking and anti-fatigue intensity, good anti-impact performance, reduced plate brittleness and longer service life, is safe to be used and not easy to be stolen.
Description
Technical field
The utility model relates to the municipal drainage ancillary service, specifically is a kind of rain grid made.
Background technology
At present the rain grid made that generally uses in municipal engineering mainly contains two kinds of cast iron grate and ordinary concrete grates, and the major defect of cast iron grate is that cost is higher, and easily stolen, safety in utilization is relatively poor; The major defect of ordinary concrete grate is that breaking resistance is low, and shock resistance is poor, and fatigue strength is low, and material fragility is big, and cracky is changed frequent.
Summary of the invention
In order to solve the above-mentioned deficiency of existing rain grid made, the utility model proposes that a kind of breaking resistance and fatigue strength improve, shock resistance is good, plate body fragility reduces, the life-span improves, safe in utilization, be difficult for stolen polypropylene fibre and strengthen the polymer concrete rain grid made.
The technical scheme that its technical problem that solves the utility model adopts is:
Polypropylene fibre strengthens the polymer concrete rain grid made, the polypropylene fibre that comprises rectangular bar of steel framework and cast in the rectangular bar of steel framework strengthens polymer concrete, described rectangular bar of steel framework is welded by band steel, vertical welding is connected to spaced apart reinforcing bar group between the two long limits of described rectangular bar of steel framework, and the polypropylene fibre between the two adjacent reinforcing bar groups strengthens on the polymer concrete perforate.
Further, described reinforcing bar group vertically uniformly-spaced arranging along rectangular bar of steel framework.
Further, described each perforate vertically evenly distributing along rectangular bar of steel framework.
Preferably, described reinforcing bar group comprises two reinforcing bars.
Preferably, the polypropylene fibre between the two adjacent reinforcing bar groups strengthens on the polymer concrete single perforate, and described single perforate is extended along the width of rectangular bar of steel framework.
Technical conceive of the present utility model is: be welded into rectangular bar of steel framework with the big band steel of rigidity, and steel bar stress and steel frame are welded together, form bigger integral rigidity.Polypropylene fibre strengthens shock resistance, raising breaking resistance and the fatigue strength that polymer concrete can improve plate body greatly, reduces the fragility of plate body, improves the application life of grate, and does not have recovery value, is difficult for stolen.
The beneficial effects of the utility model are: breaking resistance and fatigue strength improve, shock resistance is improved; Plate body fragility reduces, the raising in application life; Safe in utilization, be difficult for stolen.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is a plate body arrangement of reinforcement schematic diagram of the present utility model.
Fig. 3 is the schematic diagram of rectangular bar of steel framework described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1-3: polypropylene fibre strengthens the polymer concrete rain grid made, the polypropylene fibre that comprises rectangular bar of steel framework 1 and cast in the rectangular bar of steel framework 1 strengthens polymer concrete 2, the reinforcing bar group that vertical welding is uniformly-spaced arranged between the two long limits of described rectangular bar of steel framework 1, described reinforcing bar group comprises two reinforcing bars 4; Polypropylene fibre between the two adjacent reinforcing bar groups strengthens on the polymer concrete single perforate 3, and described single perforate 3 is extended along the width of rectangular bar of steel framework, and described each perforate vertically evenly distributes along rectangular bar of steel framework.
Particularly, with thickness is 2mm, width is that to be welded into length be 350mm～750mm to the band steel of 50mm～70mm, width is the rectangular bar of steel framework 1 (Fig. 3) of 250mm～450mm, reinforcement placement is at the steel frame width, between Kong Yukong, the I grade reinforcing steel 4 (Fig. 2) that between hole and the steel frame minor face two diameters to be set respectively be 6mm, and reinforcing bar and steel frame are welded into integral body at 20mm place, distance steel frame bottom surface, it is that to mix earlier volume fraction in ordinary concrete be 0.1%～0.15% the polypropylene fibre and the polymer of cement consumption 10%～20% that polypropylene fibre strengthens polymer concrete, it is poured into the polypropylene fibre that is formed in the thickness direction perforate in the steel frame again and strengthens the polymer concrete rain grid made.
In ordinary concrete, add a certain amount of polypropylene fibre and polymer, improve shock resistance, raising breaking resistance and the fatigue strength of plate body greatly, reduce the fragility of plate body, improve the application life of grate, and do not have recovery value, be difficult for stolen.
Claims (5)
1, polypropylene fibre strengthens the polymer concrete rain grid made, it is characterized in that: comprise rectangular bar of steel framework and cast in the interior polypropylene fibre of rectangular bar of steel framework strengthening polymer concrete, described rectangular bar of steel framework is welded by band steel, vertical welding is connected to spaced apart reinforcing bar group between the two long limits of described rectangular bar of steel framework, and the polypropylene fibre between the two adjacent reinforcing bar groups strengthens on the polymer concrete perforate.
2, polypropylene fibre as claimed in claim 1 strengthens the polymer concrete rain grid made, it is characterized in that: described reinforcing bar group is vertically uniformly-spaced arranged along rectangular bar of steel framework.
3, polypropylene fibre as claimed in claim 1 or 2 strengthens the polymer concrete rain grid made, it is characterized in that: described each perforate vertically evenly distributes along rectangular bar of steel framework.
4, polypropylene fibre as claimed in claim 3 strengthens the polymer concrete rain grid made, and it is characterized in that: described reinforcing bar group comprises two reinforcing bars.
5, polypropylene fibre as claimed in claim 4 strengthens the polymer concrete rain grid made, it is characterized in that: the polypropylene fibre between the two adjacent reinforcing bar groups strengthens on the polymer concrete single perforate, and described single perforate is extended along the width of rectangular bar of steel framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201384085U CN201265195Y (en) | 2008-09-18 | 2008-09-18 | Polypropylene fiber reinforced polymer concrete rainwater grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201384085U CN201265195Y (en) | 2008-09-18 | 2008-09-18 | Polypropylene fiber reinforced polymer concrete rainwater grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265195Y true CN201265195Y (en) | 2009-07-01 |
Family
ID=40831560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201384085U Expired - Fee Related CN201265195Y (en) | 2008-09-18 | 2008-09-18 | Polypropylene fiber reinforced polymer concrete rainwater grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265195Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956702A (en) * | 2014-04-30 | 2014-07-30 | 国家电网公司 | Manufacturing method for composite type annular power cable pipeline |
| GB2541694A (en) * | 2015-08-26 | 2017-03-01 | A2B Plastics Ltd | Access cover or grate for use in paved surface |
-
2008
- 2008-09-18 CN CNU2008201384085U patent/CN201265195Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956702A (en) * | 2014-04-30 | 2014-07-30 | 国家电网公司 | Manufacturing method for composite type annular power cable pipeline |
| CN103956702B (en) * | 2014-04-30 | 2016-08-24 | 国家电网公司 | A kind of preparation method of compound annular power cable pipeline |
| GB2541694A (en) * | 2015-08-26 | 2017-03-01 | A2B Plastics Ltd | Access cover or grate for use in paved surface |
| GB2541694B (en) * | 2015-08-26 | 2019-08-14 | A2B Plastics Ltd | Access cover or grate for use in paved surface |
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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 |
Granted publication date: 20090701 Termination date: 20160918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |