CN202247655U - Hollow box-shaped frame bridge for mining subsidence area - Google Patents
Hollow box-shaped frame bridge for mining subsidence area Download PDFInfo
- Publication number
- CN202247655U CN202247655U CN2011203149715U CN201120314971U CN202247655U CN 202247655 U CN202247655 U CN 202247655U CN 2011203149715 U CN2011203149715 U CN 2011203149715U CN 201120314971 U CN201120314971 U CN 201120314971U CN 202247655 U CN202247655 U CN 202247655U
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- China
- Prior art keywords
- frame bridge
- shaped frame
- hollow
- bridge
- box
- 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 discloses a hollow box-shaped frame bridge for a mining subsidence area, which is composed of a hollow square frame, wherein the hollow square frame is encircled by connecting a base plate, a top plate and two side panels through chamfering; the purpose of reducing material consumption is achieved by making the top plate and lateral plates of a box body into hollow large plates and making the base plate into a solid large plate; under the condition that a bridge body structure meets the requirement of force bearing, the sectional area of the solid box-shaped frame bridge body can be effectively reduced, the ratio of section modulus in bending to the cross-sectional area of the solid box-shaped frame bridge body is improved, and the structure is more reasonable and economic; moreover, due to the reduction of material consumption, the dead weight of the bridge body is reduced, the additional stress of a base can be effectively reduced under the condition of no change of a contact base face, and the requirement on the bearing capacity of a foundation can be more satisfied.
Description
Technical field
The utility model relates to a kind of boxed frame bridge, especially a kind of hollow box frame bridge that is applicable to minery.
Background technology
Along with China's rapid development of economy, nowadays China's road, railway spread all over national every nook and cranny, and China is a coal big country, and more and more important as the underground mining activities of main energy sources supply, this just inevitably will construct a bridge on the goaf.The exploitation of subterranean resource possibly cause moving and distortion of the face of land, thus the safety that jeopardizes the ground structure.Along with the development of mining industry, the harm that the above goaf building are brought also is on the rise.The land subsidence that exploitation causes directly jeopardizes the safety of earth construction thing and communications and transportation, and its quality of administering achievement will directly have influence on the development of the regional people's livelihood and mining industry economics.In road or railway engineering; Structure Safety for Bridge property is the most important thing of an engineering; At present, build the bridge of subsidence area both at home and abroad in because the sinking that mining or goaf " activation " cause causes the broken of bridge to change; In order to guarantee the safe operation of bridge, just must carry out resistance to deformation and handle bridge.Wherein the boxed frame bridge is exactly an a kind of good resistance to deformation structure wherein, and the agent structure of boxed frame bridge is a boxed frame, and the major advantage of this structure is that structural integrity is good; Rigidity is big, and non-deformability is strong, and base stress is little; It is low to be suitable for bearing capacity of foundation soil, the condition that differential settlement is big, but existing boxed frame bridge is in order to improve non-deformability; There is the problem that sectional dimension is excessive, material usage is many, cost is too high, thereby influences using and promoting of boxed frame bridge.How under the situation that guarantees box frame bridge safety, improve stock utilization, the waste that reduces resource is a urgent problem.
Summary of the invention
The purpose of the utility model overcomes the weak point in the prior art, and a kind of simple in structure, low strong hollow box frame bridge that is used for minery of bearing capacity of cost is provided.
Technical scheme: the utility model is used for the hollow box frame bridge of minery, is connected the hollow square frame that surrounds with two side panels through chamfering and is constituted by a base plate, a top board.
The a plurality of roof holes of interval shape on the described top board; The a plurality of side plates of interval shape hole on the described side panel.
Beneficial effect:, exist material usage too much to box frame bridge at present commonly used, the problem that cost is too high owing to adopted technique scheme.Through making hollow big plate to roof box and side plate, base plate is made solid big plate, reaches the purpose that reduces material usage.Crossstructure is satisfying under the situation of force request, can effectively reduce solid boxed frame pontic section area on the one hand, improves the ratio of its bending resistant section coefficient and cross-sectional area, makes structure have more reasonability, economy; Because material usage reduces, the pontic weight reduction contacting under the constant situation in bottom surface, can effectively reduce net foundation pressure, more can satisfy the requirement of bearing capacity of foundation soil on the other hand.When keeping boxed frame bridge advantage, make consumption of materials reduce, save resource and reduce unnecessary waste.
Description of drawings
Fig. 1 is the main TV structure figure of the utility model.
Fig. 2 is the side-looking structure chart of the utility model.
Among the figure: 1-roof hole, 2-side plate hole, 3-base plate, 4-top board, 5-side panel.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further description:
The hollow box frame bridge that is used for minery of the utility model mainly is connected the hollow square frame that surrounds with two side panels 5 through chamfering and is constituted by a base plate 3, a top board 4.Wherein, base plate 3 is solid base plate, a plurality of roof holes 1 of interval shape on the top board 4, a plurality of side plates of interval shape hole 2 on the side panel 5.
Claims (3)
1. hollow box frame bridge that is used for minery is characterized in that: frame bridge is connected the hollow square frame that surrounds by a base plate (3), a top board (4) and two side panels (5) through chamfering and constitutes.
2. the hollow box frame bridge that is used for minery according to claim 1 is characterized in that: described top board (4) is gone up a plurality of roof holes of shape (1) at interval.
3. the hollow box frame bridge that is used for minery according to claim 1 is characterized in that: described side panel (5) is gone up shape a plurality of side plates holes (2) at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203149715U CN202247655U (en) | 2011-08-26 | 2011-08-26 | Hollow box-shaped frame bridge for mining subsidence area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203149715U CN202247655U (en) | 2011-08-26 | 2011-08-26 | Hollow box-shaped frame bridge for mining subsidence area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247655U true CN202247655U (en) | 2012-05-30 |
Family
ID=46108917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203149715U Expired - Fee Related CN202247655U (en) | 2011-08-26 | 2011-08-26 | Hollow box-shaped frame bridge for mining subsidence area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297612A (en) * | 2015-09-16 | 2016-02-03 | 浙江大学 | Method for improving integrality and durability of hollow slab frame bridge by adopting prestressing force |
-
2011
- 2011-08-26 CN CN2011203149715U patent/CN202247655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297612A (en) * | 2015-09-16 | 2016-02-03 | 浙江大学 | Method for improving integrality and durability of hollow slab frame bridge by adopting prestressing force |
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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: 20120530 Termination date: 20130826 |