CN203741831U - Steel structure of prestress high-strength concrete pipe pile body - Google Patents
Steel structure of prestress high-strength concrete pipe pile body Download PDFInfo
- Publication number
- CN203741831U CN203741831U CN201420118608.XU CN201420118608U CN203741831U CN 203741831 U CN203741831 U CN 203741831U CN 201420118608 U CN201420118608 U CN 201420118608U CN 203741831 U CN203741831 U CN 203741831U
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- China
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- net cylinder
- spiral net
- prestress
- pile body
- pipe pile
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Abstract
The utility model relates to steel structures of piles for construction, in particular to a steel structure of a prestress high-strength concrete pipe pile body. The steel structure of the prestress high-strength concrete pipe pile body comprises multiple prestress longitudinal bars, a spiral net cylinder and multiple annular hoop bars. The spiral net cylinder is formed by binding multiple steel wires together in a crossed mode according to a certain screw pitch, wherein the turning directions of spiral angles of the steel wires are opposite. The prestress longitudinal bars are evenly distributed in the circumferential direction in a circle formed by the spiral net cylinder. A circle formed by the prestress longitudinal bars and the circle formed by the spiral net cylinder are concentric. The annular hoop bars are evenly bound to the outer side of the spiral net cylinder from top to bottom. Compared with the prior art, the steel structure of the prestress high-strength concrete pipe pile body has the advantages that shear capacity of a prestress pipe pile can be greatly increased through the spiral net cylinder, the flexural behavior is enhanced through the prestress longitudinal bars, the spiral net cylinder is matched with the annular hoop bars so that integrity between the prestress longitudinal bars in the pipe pile body can be improved, and the anti-seismic dissipation capacity can be enhanced.
Description
Technical field
The utility model relates to the steel work of stake for building, specifically a kind of steel work of prestressed high-strength concrete pile pile body.
Background technology
Prestressed high-strength concrete pile (PHC stake) is as the one of prefabricated pile basis, high with its pile strength, vertical bearing capacity of single pile is large, pile quality is reliable, short construction period, unit bearing capacity cost than the advantage such as cheap, design Application Range is wide by extensive use both at home and abroad.At present, the design of China to pile tube, production, construction etc. have some regulations, as GB13476-2009 " Pretensioned spun concrete piles " standard, 03SG409 " prestressed concrete pipe pile " atlas etc., in addition, the ground such as Guangdong, Shanghai, Zhejiang, Jiangsu, Tianjin, Henan is also according to the specific provincial standard of having formulated of self.In these specifications and standard, the scope of application of regulation pile tube is that non-Anti-Seismic Region and seismic fortification intensity are the area of 6 degree, 7 degree mostly, and spend and above area at seismic fortification intensity 8, should not adopt or need to check separately, for how to carry out " seismic design is calculated separately ", do not have clear and definite technical stipulation.
China approximately has 79% area to be in Anti-Seismic Regions more than 6 degree, has 8% area in compared with high-intensity earthquake fortification zone (earthquake intensity >=8 degree), and it is not rarely seen that the earthquake of higher earthquake intensity occurs in lower seismic fortification intensity region.Particularly in recent years, violent earthquake both at home and abroad, special violent earthquake take place frequently, therefore cause numerous scholars to pipe pile foundation in the discussion of highly seismic region application and the concern of the performance in violent earthquake to prestressed pipe pile foundation.The force analysis of pile foundation while generation from earthquake, maximum shear, axle power and moment of flexure all occur in pile tube and cushion cap junction, and connected node distortion occurs under three's acting in conjunction, and in the time that distortion is excessive, pile foundation is destroyed because losing supporting capacity.Therefore in the time of earthquake zone application pipe pile foundation, should attach great importance to the anti-horizontal loading on pipe pile basis and the ability of horizontal movement.Some pile tube entity shear tests and beam test show that pile tube has certain anti-sloping section damage capability and anti-bending strength, but also will be appreciated that simultaneously, when earthquake, act on the impact that external force on pipe pile basis is subject to many uncertain factors, the internal force of pile tube distributes and distortion is quite complicated, and further research needs.
Be mainly reflected in shear-carrying capacity and energy consumption ability two aspects of tubular pile body for the anti-horizontal loading of above-mentioned PHC stake and the ability of horizontal movement.The PHC stake product relating in the countries concerned's specification and atlas at present is more paid close attention to the vertical compression bearing of pile tube, and all not can solve the problem of this two aspect, thereby has limited PHC stake applying in high earthquake intensity area.So need to improve about the research level of this respect.
Summary of the invention
The utility model, in order to improve shear-carrying capacity and the antivibration energy-dissipating property of tubular pile body, provides a kind of steel work of prestressed high-strength concrete pile pile body.
The utility model is achieved through the following technical solutions: the steel work of prestressed high-strength concrete pile pile body, comprise some pre-stressed longitudinal reinforced, spiral net cylinder and some ring-shaped stirrups, described spiral net cylinder is to revolve in the opposite direction racking seizing by certain pitch with helical angle by many steel wires to form together, in described some pre-stressed longitudinal reinforced circles that is along the circumferential direction arranged in uniformly the formation of spiral net cylinder, the circle of some pre-stressed longitudinal reinforced formation is concentric with the circle that spiral net cylinder forms, the from top to bottom uniform colligation of described some ring-shaped stirrups is in spiral net cylinder outside.
The steel work of prestressed high-strength concrete pile pile body described in the utility model is with respect to prior art, spiral net cylinder can increase the shear-carrying capacity of pile for prestressed pipe widely, the pre-stressed longitudinal reinforced anti-bending strength that strengthened, simultaneously matching of spiral net cylinder and ring-shaped stirrup can be improved the globality between pre-stressed longitudinal reinforced in tubular pile body, strengthen energy consumption ability, thus the larger horizontal loads of opposing.
Brief description of the drawings
Fig. 1 is the structural representation of the steel work of prestressed high-strength concrete pile pile body described in the utility model.
Fig. 2 is the sectional view that in Fig. 1, A-A cuts open.
In figure: 1-is pre-stressed longitudinal reinforced, 2-spiral net cylinder, 3-ring-shaped stirrup.
Detailed description of the invention
The steel work of prestressed high-strength concrete pile pile body, comprise some pre-stressed longitudinal reinforced 1, spiral net cylinders 2 and some ring-shaped stirrups 3, described spiral net cylinder 2 is to revolve in the opposite direction racking seizing by certain pitch with helical angle by many steel wires to form together, described some pre-stressed longitudinal reinforced 1 is along the circumferential direction arranged in the circle that spiral net cylinder 2 forms uniformly, some pre-stressed longitudinal reinforced 1 circles that form are concentric with the circle that spiral net cylinder 2 forms, and the from top to bottom uniform colligation of described some ring-shaped stirrups 3 is in spiral net cylinder 2 outsides.
Further, the steel wire quantity of described spiral net cylinder 2 equates with pre-stressed longitudinal reinforced 1 quantity.Can ensure that pile body obtains synchronous raising along hoop anti-bending bearing capacity and shear-carrying capacity, has ensured along the uniformity of hoop pile body anti-earthquake ductility.
Further, the tangent line of any point on the steel wire of described spiral net cylinder 2 and horizontal angle are 60 °.When the steel wire of spiral net cylinder 2 and ring section are cut, the principal tensile stress direction of inside concrete is orthogonal, can improve pile body shear Capacity in amplitude peak ground.
Claims (3)
1. the steel work of prestressed high-strength concrete pile pile body, it is characterized in that, comprise some pre-stressed longitudinal reinforced (1), spiral net cylinder (2) and some ring-shaped stirrups (3), described spiral net cylinder (2) is to revolve in the opposite direction racking seizing by certain pitch with helical angle by many steel wires to form together, described some pre-stressed longitudinal reinforced (1) is along the circumferential direction arranged in the circle of spiral net cylinder (2) formation uniformly, the circle that some pre-stressed longitudinal reinforced (1) forms is concentric with the circle that spiral net cylinder (2) forms, the from top to bottom uniform colligation of described some ring-shaped stirrups (3) is in spiral net cylinder (2) outside.
2. the steel work of prestressed high-strength concrete pile pile body according to claim 1, is characterized in that, the steel wire quantity of described spiral net cylinder (2) equates with the quantity of pre-stressed longitudinal reinforced (1).
3. the steel work of prestressed high-strength concrete pile pile body according to claim 1 and 2, is characterized in that, the tangent line of any point on the steel wire of described spiral net cylinder (2) and horizontal angle are 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118608.XU CN203741831U (en) | 2014-03-17 | 2014-03-17 | Steel structure of prestress high-strength concrete pipe pile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118608.XU CN203741831U (en) | 2014-03-17 | 2014-03-17 | Steel structure of prestress high-strength concrete pipe pile body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203741831U true CN203741831U (en) | 2014-07-30 |
Family
ID=51341652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118608.XU Withdrawn - After Issue CN203741831U (en) | 2014-03-17 | 2014-03-17 | Steel structure of prestress high-strength concrete pipe pile body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203741831U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821142A (en) * | 2014-03-17 | 2014-05-28 | 太原理工大学 | Steel structure of pre-stress high-strength concrete pipe pile body |
| CN106481514A (en) * | 2016-10-08 | 2017-03-08 | 霍尔果斯新国金新能源科技有限公司 | Tower and its steel reinforcement cage |
| CN106499591A (en) * | 2016-10-08 | 2017-03-15 | 霍尔果斯新国金新能源科技有限公司 | Tower and its steel reinforcement cage |
| CN117166516A (en) * | 2023-09-05 | 2023-12-05 | 南京工业大学 | Fixed light Fu Zhuangji provided with space-winding FRP spiral stirrups |
-
2014
- 2014-03-17 CN CN201420118608.XU patent/CN203741831U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821142A (en) * | 2014-03-17 | 2014-05-28 | 太原理工大学 | Steel structure of pre-stress high-strength concrete pipe pile body |
| CN103821142B (en) * | 2014-03-17 | 2015-08-12 | 太原理工大学 | The steel work of prestressed high-strength concrete pile pile body |
| CN106481514A (en) * | 2016-10-08 | 2017-03-08 | 霍尔果斯新国金新能源科技有限公司 | Tower and its steel reinforcement cage |
| CN106499591A (en) * | 2016-10-08 | 2017-03-15 | 霍尔果斯新国金新能源科技有限公司 | Tower and its steel reinforcement cage |
| CN117166516A (en) * | 2023-09-05 | 2023-12-05 | 南京工业大学 | Fixed light Fu Zhuangji provided with space-winding FRP spiral stirrups |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20150812 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |