CN2412052Y - Prestressed concrete rafter - Google Patents
Prestressed concrete rafter Download PDFInfo
- Publication number
- CN2412052Y CN2412052Y CN 99254985 CN99254985U CN2412052Y CN 2412052 Y CN2412052 Y CN 2412052Y CN 99254985 CN99254985 CN 99254985 CN 99254985 U CN99254985 U CN 99254985U CN 2412052 Y CN2412052 Y CN 2412052Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- prestressed concrete
- rafter
- concrete
- 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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- Rod-Shaped Construction Members (AREA)
Abstract
The utility model relates to a prestressed concrete rafter, which belongs to a concrete component used for construction. The prestressed concrete rafter is composed of a hollow cylinder and a reinforced bar arranged on the wall of the cylinder in the axial direction. As the utility model adopts a prestress and cylinder structure, the strength of the stretching resistance, the bending resistance and the compression resistance of the utility model are raised large. The prestressed concrete rafter which has the advantages of no limit by building structures in use, convenient transportation and less break can replace wooden rafters to be widely used in the construction of farm houses.
Description
The utility model relates to a kind of build concrete member, particularly a kind of prestress concrete wattle.
At present the agricultural room in China rural area has 90% all to be post and panel structure, promptly uses the room rafter material of timber as agricultural room, and therefore for a long time to being in great demand of timber, this demand and present ecological, environmental protective problem have formed a kind of opposition.In order to save timber, existing also have some substitute for wood to occur, and a kind ofly makees raw-material room rafter with concrete as commercially available.This room its sectional area of rubber is a square, is provided with four reinforcing bars respectively at its place, tetragonal four angles.This coagulation abode house rubber, though can be as the substitute of wooden rafter, its tension and compressive strength are owing to be subjected to the restriction of its structure all lower.
The purpose of this utility model is to provide a kind of prestressed concrete wattle with good tension, bending resistance and compressive strength.
A kind of prestress concrete wattle is characterized in that it forms by a hollow cylinder 1 with along the reinforcing bar 3 that axis direction is located on the cylindrical wall 2.The reinforcing bar of being located on the cylindrical wall 2 along axis direction 3 is evenly distributed.Have preformed hole 4 in described hollow cylinder 1 upper edge cross-sectional direction.
The utility model makes it that stronger resistance to compression, bending resistance and tensile strength be arranged owing to adopted prestressing force and cylindrical structure, also is not subjected to the restriction of structure when placing, and certain randomness is arranged.And the utility model makes its brashness that has overcome simple concrete product owing to have certain elasticity, transports also very convenient.The utility model can be widely used in the building in various agricultural rooms.
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is a cross sectional representation of the present utility model
Accompanying drawing 3 is the utility model state diagram in use
Be embodiment of the present utility model with accompanying drawing 1,2,3 below, the utility model further specified:
Reinforcing bar 3 in the utility model can adopt cold-drawn low-carbon wire, and the wall thickness of hollow cylinder 1 is 20～25mm.When making the utility model, at first cold-drawn low-carbon wire should be carried out stretch-draw, the stretch-draw of steel wire should once be finished, and the reinforcing bar after the stretch-draw should water concrete on the same day.Produce concrete of the present utility model and adopt the c30 concrete.For easy for installation, preformed hole 4 should be set on the utility model.Preformed hole 4 can be finished connecting of the utility model and building.As shown in Figure 3, can when producing the utility model, open preformed hole according to the designing requirement in house at its two ends and middle part.Be provided with chock 5 at the fixing position of needs during installation, with wire nail 7 the utility model connected with the roof beam structure 6 in house by preformed hole.
Claims (3)
1, a kind of prestress concrete wattle is characterized in that it forms by a hollow cylinder (1) with along the reinforcing bar (3) that axis direction is located on the cylindrical wall (2).
2, the prestress concrete wattle described in claim 1 is characterized in that the described reinforcing bar of being located on the cylindrical wall (2) (3) is evenly distributed.
3, the prestress concrete wattle described in claim 1 or 2 is characterized in that having preformed hole (4) in described hollow cylinder (1) upper edge cross-sectional direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254985 CN2412052Y (en) | 1999-12-17 | 1999-12-17 | Prestressed concrete rafter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254985 CN2412052Y (en) | 1999-12-17 | 1999-12-17 | Prestressed concrete rafter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412052Y true CN2412052Y (en) | 2000-12-27 |
Family
ID=34038438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99254985 Expired - Fee Related CN2412052Y (en) | 1999-12-17 | 1999-12-17 | Prestressed concrete rafter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412052Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025914A (en) * | 2016-06-16 | 2016-10-12 | 中国电力科学研究院 | Truss and spanning frame |
| CN110387999A (en) * | 2019-08-06 | 2019-10-29 | 胡钰雯 | Purlin and roof structure |
-
1999
- 1999-12-17 CN CN 99254985 patent/CN2412052Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025914A (en) * | 2016-06-16 | 2016-10-12 | 中国电力科学研究院 | Truss and spanning frame |
| CN110387999A (en) * | 2019-08-06 | 2019-10-29 | 胡钰雯 | Purlin and roof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |