CN201028128Y - Large-span high-strength trapezoid bridge structure - Google Patents
Large-span high-strength trapezoid bridge structure Download PDFInfo
- Publication number
- CN201028128Y CN201028128Y CNU2007200374772U CN200720037477U CN201028128Y CN 201028128 Y CN201028128 Y CN 201028128Y CN U2007200374772 U CNU2007200374772 U CN U2007200374772U CN 200720037477 U CN200720037477 U CN 200720037477U CN 201028128 Y CN201028128 Y CN 201028128Y
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- China
- Prior art keywords
- ladder
- bridge frame
- utility
- model
- bridge
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- 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 - Lifetime
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Abstract
The utility model relates a large-span high-strength ladder type bridge frame for laying cables, comprising ladder strings and ladder ledges. The utility model is characterized in that: the bridge frame is provided with the ladder strings which have 3-shaped cross sections with hooks outward; ladder ledges, which have cross sections shaped like a Chinese character 'ao' and is provided with uniformly distributed holes lengthwise, are arranged vertically and uniformly on the bottom ends of the tow parallel ladder strings with the backs upward and hooks downward; The bridge frame of the utility model is enforced in terms of strength and rigidity, so the carrying capacity of the bridge is improved enormously and effectively by more than 30 percent compared with the common large-span bridge frame. The utility model is simple in structure, and overcomes the drawbacks of the prior making method bridge frame, such as increasing the thickness of the board materials of the bridge frame, the number of the ladder strings and consequently the weight of the bridge frames.
Description
Technical field
The utility model is a kind of facility of usefulness of cabling, especially a kind of high-strength ladder type crane span structure of big span that is applicable to big span place.
Background technique
Under factories and miness and relevant occasion, all use crane span structure and come cabling, the weight of cable is born by crane span structure, when more or cable size was big when the quantity of cable, the load that crane span structure bore was just very big, particularly in the place of big span, because the distance between the crane span structure strong point is longer, cable weight then adds the weight of crane span structure itself often to make crane span structure produce serious deformation.For solving above technical problem, traditional way is: the thickness that 1, increases crane span structure sheet material; 2, with the group of crane span structure rolling several roads stiffening rib; 3, increase the quantity of crane span structure group.These ways have all increased the deadweight of crane span structure itself greatly, so to as the trailing arm that supports and I-steel or channel-section steel higher requirement having been arranged again.
Summary of the invention
Technical problem to be solved in the utility model: be that a kind of deadweight that do not increase will be provided, and can strengthen the high-strength ladder type crane span structure of big span of bearing capacity effectively.
For solving the technological scheme that above technical problem adopts is such: the utility model comprises ladder side and terraced Guang, it is characterized in that: this crane span structure is provided with and is figure of three section and crotch ladder side outwardly, between the two parallel ladder side lower ends, be provided with vertically uniform, the back side up, crotch down, be " recessed " font section, and in the terraced Guang that vertically has uniform hole.
Owing to adopt above technological scheme, produced beyond thought effect:
1, simple in structure, in light weight.
2, not increasing sheet metal thickness or not increasing under the situation of ladder side quantity, strengthened the strength and stiffness of crane span structure, simultaneously, greatly improved the load-carrying ability of crane span structure, compared, can effectively increase bearing capacity more than 30% with the big span crane span structure of routine.
Description of drawings
Fig. 1 is the utility model structural drawing.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the A-A section amplification figure of Fig. 1.
Fig. 4 is the B enlarged view of Fig. 2.
Among the figure: 1, ladder side 2, terraced Guang
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model comprises ladder side (1) and terraced Guang (2), it is characterized in that this crane span structure be provided with in figure of three section and crotch ladder side (1) outwardly, between the two parallel ladder side lower ends, be provided with vertically uniform, the back side up, crotch down, be " recessed " font section and in the terraced Guang (2) that vertically has uniform hole.At first ladder side (1) bending is the figure of three, terraced Guang (2) bending is " recessed " font, and in the vertically evenly punching of terraced Guang, by design pitch terraced Guang vertical welding is connected between the two parallel ladder side lower ends then.During welding, note outwardly, and with the back side of terraced Guang up, crotch down the crotch of ladder side.
Claims (1)
1. high-strength ladder type crane span structure of big span, it comprises ladder side (1) and terraced Guang (2), it is characterized in that: this crane span structure is provided with and is figure of three section and crotch ladder side (1) outwardly, between the two parallel ladder side lower ends, be provided with vertically uniform, the back side up, crotch down, be " recessed " font section and in the terraced Guang (2) that vertically has uniform hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200374772U CN201028128Y (en) | 2007-05-17 | 2007-05-17 | Large-span high-strength trapezoid bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200374772U CN201028128Y (en) | 2007-05-17 | 2007-05-17 | Large-span high-strength trapezoid bridge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028128Y true CN201028128Y (en) | 2008-02-27 |
Family
ID=39132340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200374772U Expired - Lifetime CN201028128Y (en) | 2007-05-17 | 2007-05-17 | Large-span high-strength trapezoid bridge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028128Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398228A (en) * | 2013-07-10 | 2013-11-20 | 中国核电工程有限公司 | Nuclear power station nuclear island high anti-seismic ladder type cable bridge |
-
2007
- 2007-05-17 CN CNU2007200374772U patent/CN201028128Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398228A (en) * | 2013-07-10 | 2013-11-20 | 中国核电工程有限公司 | Nuclear power station nuclear island high anti-seismic ladder type cable bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080227 |