CN201883370U - Steel cable-stayed bridge demonstration device - Google Patents
Steel cable-stayed bridge demonstration device Download PDFInfo
- Publication number
- CN201883370U CN201883370U CN201020501848XU CN201020501848U CN201883370U CN 201883370 U CN201883370 U CN 201883370U CN 201020501848X U CN201020501848X U CN 201020501848XU CN 201020501848 U CN201020501848 U CN 201020501848U CN 201883370 U CN201883370 U CN 201883370U
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- Prior art keywords
- cable
- spare
- drag
- stayed bridge
- stayed
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Abstract
The utility model aims at disclosing a steel cable-stayed bridge demonstration device which comprises a supporting base and a main beam member, wherein the supporting base is provided with a supporting arm, one end of the supporting arm is fixedly connected on the supporting base, the other end of the supporting arm is connected with a cable-stayed member, a plurality of cable holes are arranged in the edge of the bottom part of the cable-stayed member at equal intervals, a plurality of connecting holes are arranged on the main beam member at equal intervals, the cable holes and the connecting holes are in one-to-one-correspondence in the horizontal direction, the cable hole in the middle position of the cable-stayed member is connected with the connecting hole in the middle position of the main beam member through a main stay cable, the cable holes in the other positions of the cable-stayed member are mutually connected with the connecting holes in the other positions of the main beam member through stay cables with different lengths, and the main stay cable used as a cable tower, the main beam member used as a main beam and the stay cables form a structural system of a stayed-cable bridge. The steel cable-stayed bridge demonstration device is used for demonstrating the principle of the steel cable-stayed bridge, has simple structure, is quite practical, and realizes the purpose of the utility model.
Description
Technical field
The utility model relates to a kind of demonstration device, particularly a kind of cable wire cable stayed bridge apparatus for demonstrating that is used to demonstrate the principle of cable wire cable stayed bridge.
Background technology
Cable stayed bridge claims Cable stayed bridge again, and cable stayed bridge is made up of Sarasota, girder, suspension cable; Cable stayed bridge is that girder directly is pulled in a kind of bridge on the bridge tower with many drag-lines, is the Sarasota by pressure-bearing, the suspension cable of tension and hold a kind of structural system that curved girder combines.Cable stayed bridge can regard that suspension cable replaces the multispan elastomeric bearing continuous beam of buttress as, and it can make, and moment of flexure reduces in the beam body, reduces building height, has alleviated construction weight, has saved material.
The principle of cable stayed bridge is that primary load that bridge bears is not automobile or the train above it, but its deadweight, i.e. weight of girder.
The Sarasota both sides are suspension cables of symmetry, by suspension cable Sarasota, girder are linked together, have only two skew cables if suppose the Sarasota both sides, each one of bilateral symmetry, this two skew cables is subjected to the action of gravity of girder, Sarasota is produced the pulling force along the suspension cable direction of two symmetries, and according to force analysis, the power on the left side can be decomposed into level to left power and a power straight down; The power on same the right can be decomposed into level power and a power straight down to the right; Because these two power are symmetrical, so level has been cancelled each other with level two power to the right left, the gravity of final girder becomes two power straight down to Sarasota, and like this, power has been passed to the bridge pier below the Sarasota again.
Suspension cable quantity is many again, and reason also is the same, why wants a lot of bars, and that is in order to disperse girder to give the power of suspension cable.
But, the existing model that is not used in demonstration cable wire cable stayed bridge principle.
In sum, at the defective of above-mentioned existing existence, need a kind of cable wire cable stayed bridge apparatus for demonstrating especially, to solve above-mentioned problem.
The utility model content
The purpose of this utility model is to provide a kind of cable wire cable stayed bridge apparatus for demonstrating, at the deficiencies in the prior art, is used to demonstrate the principle of cable wire cable stayed bridge, and is simple in structure, very practical.
The technical problem that the utility model solved can realize by the following technical solutions:
A kind of cable wire cable stayed bridge apparatus for demonstrating, it is characterized in that, comprise a bearing and a girder spare, described bearing is provided with support arm, one end of described support arm is fixedly connected on the described bearing, the other end of described support arm is connected with a drag-line spare, equally spaced be provided with some ropes hole on the bottom margin of described drag-line spare, equally spaced be provided with some connecting holes on the described girder spare, described rope hole is corresponding one by one mutually in the horizontal direction with described connecting hole, be connected to each other by main drag-line between the connecting hole in the rope hole in the centre position of described drag-line spare and the centre position of described girder spare, be connected to each other by suspension cable different in size between the connecting hole of the rope hole of other positions of described drag-line spare and other positions of described girder spare.
In an embodiment of the present utility model, the bottom margin of described drag-line spare is provided with a circular arc limit, equally spaced is provided with some ropes hole on described circular arc limit.
Further, the junction of described support arm and described drag-line spare is positioned at the circle centre position on described circular arc limit.
Cable wire cable stayed bridge apparatus for demonstrating of the present utility model, with main drag-line as Sarasota, with girder spare as girder, constitute the structural system of cable stayed bridge with oblique zip, be used to demonstrate the principle of cable wire cable stayed bridge, simple in structure, very practical, realize the purpose of this utility model.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better embodiment of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is the structural representation of cable wire cable stayed bridge apparatus for demonstrating of the present utility model;
Fig. 2 is the stressed schematic diagram of the cable wire of cable wire cable stayed bridge apparatus for demonstrating of the present utility model;
Fig. 3 is the stressed schematic diagram of the rectangle plate of cable wire cable stayed bridge apparatus for demonstrating of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, cable wire cable stayed bridge apparatus for demonstrating of the present utility model, comprise a bearing 100 and a girder spare 200, bearing 100 is provided with support arm 110, one end of support arm 110 is fixedly connected on the bearing 100, and the other end of support arm 110 is connected with a drag-line spare 300, and the bottom margin of drag-line spare 300 is provided with a circular arc limit 310, the junction of support arm 110 and drag-line spare 300 is positioned at 320 places, the center of circle on circular arc limit 310, equally spaced is provided with some ropes hole 330 on circular arc limit 310.
Equally spaced be provided with some connecting holes 210 on the girder spare 200, the rope hole 330 of drag-line spare 300 is corresponding one by one mutually in the horizontal direction with the connecting hole 210 of girder spare 200, be connected to each other by main drag-line 400 between the connecting hole 210 in the rope hole 330 in drag-line spare 300 centre positions and girder spare 200 centre positions, be connected to each other by suspension cable different in size 500 between the connecting hole 210 of the rope hole 330 of drag-line spare 300 other positions and girder spare 200 other positions.
In the utility model, drag-line spare 300 equally spaced is provided with 9 rope holes 330 on circular arc limit 310, equally spaced be provided with 9 connecting holes 210 on the girder spare 200, the rope hole 330 of drag-line spare 300 is corresponding one by one mutually in the horizontal direction with the connecting hole 210 of girder spare 200, be connected to each other by main drag-line 400 between the connecting hole 210 in the rope hole 330 in drag-line spare 300 centre positions and girder spare 200 centre positions, drag-line spare 300 is provided with 4 rope holes 330 respectively with respect to the rope hole 330 in centre position in both sides, girder spare 200 is respectively arranged with 4 connecting holes 210 with respect to the connecting hole 210 in centre position in both sides, be connected to each other by suspension cable different in size 500 between the connecting hole 210 of the rope hole 330 of drag-line spare 300 both sides and girder spare 200 both sides.
Main drag-line as Sarasota, as girder, is constituted the structural system of cable stayed bridge with oblique zip with girder spare, be used to demonstrate the principle of cable wire cable stayed bridge.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. cable wire cable stayed bridge apparatus for demonstrating, it is characterized in that, comprise a bearing and a girder spare, described bearing is provided with support arm, one end of described support arm is fixedly connected on the described bearing, the other end of described support arm is connected with a drag-line spare, equally spaced be provided with some ropes hole on the bottom margin of described drag-line spare, equally spaced be provided with some connecting holes on the described girder spare, described rope hole is corresponding one by one mutually in the horizontal direction with described connecting hole, be connected to each other by main drag-line between the connecting hole in the rope hole in the centre position of described drag-line spare and the centre position of described girder spare, be connected to each other by suspension cable different in size between the connecting hole of the rope hole of other positions of described drag-line spare and other positions of described girder spare.
2. cable wire cable stayed bridge apparatus for demonstrating as claimed in claim 1 is characterized in that the bottom margin of described drag-line spare is provided with a circular arc limit, equally spaced is provided with some ropes hole on described circular arc limit.
3. cable wire cable stayed bridge apparatus for demonstrating as claimed in claim 2 is characterized in that the junction of described support arm and described drag-line spare is positioned at the circle centre position on described circular arc limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020501848XU CN201883370U (en) | 2010-08-23 | 2010-08-23 | Steel cable-stayed bridge demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020501848XU CN201883370U (en) | 2010-08-23 | 2010-08-23 | Steel cable-stayed bridge demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201883370U true CN201883370U (en) | 2011-06-29 |
Family
ID=44180908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020501848XU Expired - Fee Related CN201883370U (en) | 2010-08-23 | 2010-08-23 | Steel cable-stayed bridge demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201883370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295860A (en) * | 2018-10-26 | 2019-02-01 | 中国十七冶集团有限公司 | A kind of support device of cable-stayed bridge cable construction |
-
2010
- 2010-08-23 CN CN201020501848XU patent/CN201883370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295860A (en) * | 2018-10-26 | 2019-02-01 | 中国十七冶集团有限公司 | A kind of support device of cable-stayed bridge cable construction |
| CN109295860B (en) * | 2018-10-26 | 2020-06-05 | 中国十七冶集团有限公司 | Support arrangement for construction of cable-stay bridge cable |
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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: 20110629 Termination date: 20120823 |