CN217670093U - Steel pipe concrete prefabricated part pressure forming device - Google Patents
Steel pipe concrete prefabricated part pressure forming device Download PDFInfo
- Publication number
- CN217670093U CN217670093U CN202221422147.6U CN202221422147U CN217670093U CN 217670093 U CN217670093 U CN 217670093U CN 202221422147 U CN202221422147 U CN 202221422147U CN 217670093 U CN217670093 U CN 217670093U
- Authority
- CN
- China
- Prior art keywords
- concrete
- steel tube
- steel pipe
- section steel
- stroke section
- 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.)
- Active
Links
Images
Landscapes
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The utility model relates to a steel pipe concrete prefabricated part pressure forming device, which comprises a counterforce device, a pressure system, a pushing piston and a steel pipe concrete member; the pressurizing system, the pushing piston and the concrete filled steel tube member are coaxially and sequentially arranged and are arranged in the counterforce device, the pressurizing system is contacted with one end of the counterforce device, and the concrete filled steel tube member is contacted with the other end of the counterforce device; the steel pipe concrete member comprises a stroke section steel pipe, a forming section steel pipe and internal concrete, and the stroke section steel pipe and the forming section steel pipe are fixedly connected in a detachable mode; one end of the pushing piston is connected with the pressurizing system, and the other end of the pushing piston can extend into the stroke section steel pipe; the pressurizing system applies pressure to the jacking piston to extrude the jacking piston into the concrete filled steel tube member which is not solidified and hardened, so that the aim of pressurizing and forming the concrete filled steel tube is fulfilled. The utility model discloses it is convenient to use, and the steel pipe concrete prefabricated component length of making is stable controllable, and the shaping is of high quality.
Description
Technical Field
The utility model belongs to the technical field of the steel pipe concrete shaping, concretely relates to steel pipe concrete prefabricated component pressure forming device.
Background
The steel tube concrete fully utilizes the advantages of steel and concrete materials, has the characteristics of high bearing capacity, good plasticity and toughness and the like, and is widely applied to industrial plants, high-rise and large-span buildings, bridges and underground structures.
Most of the existing concrete-filled steel tube members are manufactured on site, and due to the shrinkage of concrete in the curing process, the steel tube-concrete interface is often hollow, so that the stress performance of the concrete-filled steel tube member is influenced.
Chinese patent CN207988359U discloses a steel pipe concrete high-pressure forming device, which comprises a steel pipe, a stress plate slidably disposed in one end of the steel pipe, a stress bracket disposed outside one end of the steel pipe, a first pressurizing mechanism mounted on the stress bracket and connected with the stress plate, and a bearing plate mounted at the other end of the steel pipe, wherein the first pressurizing mechanism is used for applying a certain pressure to concrete poured into the steel pipe, maintaining the pressure to maintain the concrete to be finally set, and releasing the pressure after reaching a certain strength. The device can be used for manufacturing the steel pipe concrete prefabricated part, and the compactness and the strength of concrete in the steel pipe are improved; and simultaneously, the debonding phenomenon of the steel pipe and the concrete is improved, so that the bearing capacity and the durability of the steel pipe concrete are improved. However, the device has the following disadvantages: 1) The pressure applied by the device is finally transmitted to the stressed brackets at the two ends, and larger thrust is generated on the wall body with the two sides contacting the brackets, so that the requirement on the manufacturing environment is higher, and the adjustment is difficult; 2) Because the extrusion effect of piston, the inside concrete shaping length of component is less than steel pipe length, and the later stage need carry out the steel pipe cutting to the component just can accomplish prefabricated component's preparation. The cutting operation is easy to reduce the mechanical property of the steel pipe, and the length of the prefabricated part is influenced by the manufacturing process and is difficult to control.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a concrete filled steel tube prefabricated component pressure forming device to the not enough of above-mentioned prior art existence, and the device uses conveniently, and the concrete filled steel tube prefabricated component length stability of making is controllable, and the shaping is of high quality.
The utility model discloses a solve the technical scheme that technical problem that the aforesaid provided adopted and be:
a pressure forming device for a concrete filled steel tube prefabricated part comprises a counterforce device, a pressure system, a pushing piston and a concrete filled steel tube part; the pressurizing system, the pushing piston and the concrete filled steel tube member are coaxially and sequentially arranged and are arranged in the counterforce device, the pressurizing system is in contact with one end of the counterforce device, and the concrete filled steel tube member is in contact with the other end of the counterforce device; the steel pipe concrete member comprises a stroke section steel pipe, a forming section steel pipe and internal concrete, and the stroke section steel pipe and the forming section steel pipe are fixedly connected in a detachable mode; one end of the pushing piston is connected with the pressurizing system, and the other end of the pushing piston can extend into the stroke section steel pipe; the pressurizing system applies pressure to the jacking piston to extrude the jacking piston into the concrete filled steel tube member which is not solidified and hardened, so that the purpose of pressurizing and forming the concrete filled steel tube is achieved.
In the above scheme, the reaction device comprises a first end plate, a second end plate and a plurality of opposite-pulling screws, wherein the first end plate and the second end plate are arranged in parallel; and two ends of the opposite-pulling screw rod are fixedly connected with the first end plate and the second end plate through nuts.
In the above scheme, the counter-pulling screws are symmetrically arranged at the upper part and the lower part of the first end plate and the second end plate.
In the scheme, two ends of the stroke section steel pipe are open, one end of the forming section steel pipe, which is connected with the stroke section steel pipe, is open, and the other end of the forming section steel pipe is closed; the inner diameter of the steel pipe in the stroke section is smaller than or equal to that of the steel pipe in the forming section.
In the scheme, the pushing piston is a steel cylinder with two closed ends, the outer diameter is smaller than or equal to the inner diameter of the stroke section steel pipe, and the length is smaller than or equal to the length of the stroke section steel pipe.
In the scheme, the forming section steel pipe and the stroke section steel pipe are coaxially connected through the flange, and the sealing ring is arranged at the connecting position.
In the above scheme, the pressurizing system comprises an oil cylinder and a pump station for controlling the oil cylinder, and an oil cylinder rod of the oil cylinder is coaxially and fixedly connected with the pushing piston.
In the scheme, a first bottom bracket is arranged below the pressurizing system; and a second bottom bracket is arranged below the concrete-filled steel tube member.
In the above scheme, the pressure forming device further comprises a first reaction frame support and a second reaction frame support; one end of the counterforce device and the first bottom bracket are arranged on the first counterforce frame support; the other end of the reaction device and the second bottom bracket are mounted on the second reaction frame support.
In the scheme, the stroke section steel pipe and the forming section steel pipe are made of Q235, Q355 or Q460 steel; the concrete is made of concrete with the grade C60 and above.
The beneficial effects of the utility model reside in that:
1. the utility model discloses an among the precast concrete filled steel tube component pressure forming device, pressurization system 20, top push piston 30 and concrete filled steel tube component 40 install in counterforce device, and the pressure of applyingly is offset by self-balancing counterforce device, does not need extra reaction wall to provide thrust, and consequently whole device requires lowly to the preparation environment. And the length of the prefabricated part is not limited by the manufacturing environment. Therefore, the utility model discloses it is more convenient to use.
2. The utility model discloses an among the precast concrete filled steel tube component pressure forming device, the precast concrete filled steel tube component includes stroke section steel pipe and shaping section steel pipe, and the length of precast concrete filled steel tube component is controlled by the precast concrete filled steel tube shaping section that predetermines, and pressurization technology only influences the concrete volume of stroke section, cuts the separation after the maintenance is accomplished, has only cut the concrete part of component hookup location, does not produce the influence to the concrete filled steel tube mechanical properties of shaping section. Therefore, the utility model discloses the prefabricated component length of production is stable controllable.
3. The utility model discloses an among the precast concrete filled steel tube component pressure forming device, the concrete filled steel tube stem pressurizes in forming process, makes the steel pipe inflation warp, and the steel pipe still keeps closely laminating state with the concrete when later stage concrete shrink. The pressure level is reasonably controlled, so that the concrete can still be in a multidirectional compression state after being formed, and the synergistic effect of the steel pipe and the concrete is enhanced. Therefore, the utility model discloses the prefabricated component shaping of production is of high quality.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural view of a press forming device for a concrete filled steel tube prefabricated part according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a press molding apparatus for a concrete filled steel tube prefabricated part according to a second embodiment of the present invention.
In the figure: 10. a counterforce device; 11. a first end plate; 12. oppositely pulling the screw rod; 13. a nut; 14. a second end plate; 20. a pressurized system; 21. a cylinder rod; 30. pushing the piston; 40. a concrete filled steel tubular member; 41. a stroke section steel pipe; 42. forming a section steel pipe; 43. concrete; 51. a first bottom bracket; 52. a second bottom bracket; 61. a first reaction frame support; 62. a second reaction frame support.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The first embodiment:
as shown in fig. 1, a pressure forming apparatus for a concrete filled steel tube prefabricated component according to a first embodiment of the present invention includes a counterforce device 10, a pressure system 20, a pushing piston 30 and a concrete filled steel tube component 40; the pressurizing system 20, the pushing piston 30 and the concrete filled steel tube member 40 are coaxially and sequentially arranged and are arranged in the reaction device 10, the pressurizing system 20 is in contact with one end of the reaction device 10, and the concrete filled steel tube member 40 is in contact with the other end of the reaction device 10; the steel pipe concrete member 40 comprises a stroke section steel pipe 41, a forming section steel pipe 42 and internal concrete 43, wherein the stroke section steel pipe 41 is fixedly connected with the forming section steel pipe 42 in a detachable mode; one end of the pushing piston 30 is connected with the pressurizing system 20, and the other end can extend into the stroke section steel pipe 41; the pressurizing system 20 applies pressure to the pushing piston 30 to extrude the pushing piston into the concrete filled steel tube member 40 which is not solidified and hardened, so as to realize the purpose of pressurizing and forming the concrete filled steel tube 43.
Further optimizing, the reaction device 10 is a self-balancing device, and specifically comprises a first end plate 11, a second end plate 14 and a plurality of split screws 12 arranged between the first end plate 11 and the second end plate 14, wherein the first end plate and the second end plate are arranged in parallel; two ends of the opposite-pulling screw 12 are fixedly connected with the first end plate 11 and the second end plate 14 through nuts 13. The pressures of the pressurization system 20 and the concrete filled steel tube member 40 are balanced by the counter screw 12 of the reaction force device 10, and external force is not transmitted to the outside of the pressure molding device. The length of the reaction device 10 can be flexibly adjusted according to the requirement.
Preferably, the opposite-pulling screws 12 are symmetrically arranged at the upper and lower parts of the first and second end plates 11 and 14. The counter-pulling screw 12 is made of high-strength finish-rolled deformed steel bars, the number of the deformed steel bars is not less than 4, and the length of the deformed steel bars participating in work can be freely adjusted by nuts 13 at two ends. The pulling force of the reaction device 10 can be counteracted by symmetrically arranged thread steel.
Further optimization, two ends of the stroke section steel pipe 41 are open, one end of the forming section steel pipe 42 connected with the stroke section steel pipe 41 is open, and the other end is closed; the inner diameter of the stroke section steel pipe 41 is smaller than or equal to the inner diameter of the forming section steel pipe 42.
Further preferably, the pushing piston 30 is a steel cylinder with two closed ends, the outer diameter is smaller than or equal to the inner diameter of the stroke section steel pipe 41, and the length is smaller than or equal to the length of the stroke section steel pipe 41.
Further optimizing, the forming section steel pipe 42 and the stroke section steel pipe 41 are coaxially connected through flanges, and a sealing ring is arranged at the connecting position.
In the above scheme, the pressurizing system comprises an oil cylinder and a pump station for controlling the oil cylinder, and an oil cylinder rod of the oil cylinder is coaxially and fixedly connected with the pushing piston.
Preferably, the pressurizing system 20 comprises an oil cylinder and a pump station for controlling the oil cylinder, and an oil cylinder rod 21 of the oil cylinder is coaxially and fixedly connected with the pushing piston 30. The pressurization system 20 may provide and maintain a certain pressure.
Further, the material of the stroke section steel pipe 41 and the forming section steel pipe 42 is preferably Q235, Q355 or Q460 steel.
The material of the pressure-formed concrete 43 inside the steel pipe concrete member 40, preferably the concrete of the reference C60 or above, is further optimized to improve the bearing capacity.
The application method of the steel tube concrete prefabricated part pressure forming device comprises the following steps:
s1, connecting a stroke section steel pipe 41 and a forming section steel pipe 42 of a concrete-filled steel tube component 40 through flanges, arranging a sealing ring at the connecting position, and screwing a connecting bolt;
s2, pouring concrete 43 in the steel pipe concrete member 40, wherein the pouring amount is not less than the sum of the volumes of the stroke section and the forming section, and vibrating to discharge air bubbles in the concrete 43;
s3, coaxially and sequentially arranging the pressurization system 20, the pushing piston 30 and the concrete filled steel tube member 40 at the center of the reaction device 10;
and S4, starting the pressurization system 20 to extend the cylinder rod 21, pushing the pushing piston 30 to enter the stroke section of the concrete-filled steel tube member 40, continuously applying pressure to the concrete 43 which is not solidified and hardened in the concrete-filled steel tube member 40, and simultaneously expanding the steel tube wall of the concrete-filled steel tube member 40 under the internal pressure. Stopping pressurizing and maintaining the pressure when the specified curing pressure is reached, wherein the curing pressure is selected according to the following formula:
wherein P is maintenance pressure, D is the outer diameter of the steel pipe, t is the wall thickness of the steel pipe, and fy is the yield strength of the steel.
S5, releasing pressure after keeping the pressure for 1-7 days, independently taking out the concrete-filled steel tube member 40, and naturally curing to 28-day age;
s6, removing the connecting bolts of the stroke section and the forming section of the concrete-filled steel tube member 40, and cutting the concrete 43 at the connecting position of the stroke section and the forming section of the concrete-filled steel tube member 40 by using a disc saw or a wire saw to separate the stroke section and the forming section. The forming section of the concrete-filled steel tube component 40 is the manufactured pressurizing forming concrete-filled steel tube prefabricated component.
Second embodiment:
as shown in fig. 2, a concrete filled steel tube prefabricated component press forming device provided by a second embodiment of the present invention has a structure substantially the same as that of the first embodiment, except that: (1) A first bottom bracket 51 is provided below the pressurization system 20; a second bottom bracket 52 is provided below the steel pipe concrete member 40. The reaction device 10 is provided with a bottom bracket, so that the axes of the pressurization system 20, the pushing piston 30 and the concrete filled steel tube member 40 are centered conveniently. (2) The press-molding apparatus further includes a first reaction frame support 61 and a second reaction frame support 62; the first end plate 11 and the first bottom bracket 51 of the reaction force device 10 are attached to the first reaction frame support 61; the second end plate 14 and the second bottom bracket 52 of the reaction force device 10 are mounted to the second reaction frame support 62.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the scope of the present invention, and these forms are all within the protection scope of the present invention.
Claims (10)
1. A steel pipe concrete prefabricated part pressure forming device is characterized by comprising a counterforce device, a pressure system, a pushing piston and a steel pipe concrete member; the pressurizing system, the pushing piston and the concrete-filled steel tube member are coaxially and sequentially arranged and are arranged in the counterforce device, the pressurizing system is in contact with one end of the counterforce device, and the concrete-filled steel tube member is in contact with the other end of the counterforce device; the steel pipe concrete member comprises a stroke section steel pipe, a forming section steel pipe and internal concrete, and the stroke section steel pipe and the forming section steel pipe are fixedly connected in a detachable mode; one end of the pushing piston is connected with the pressurizing system, and the other end of the pushing piston can extend into the stroke section steel pipe; the pressurizing system applies pressure to the jacking piston to extrude the jacking piston into the concrete filled steel tube member which is not solidified and hardened, so that the aim of pressurizing and forming the concrete filled steel tube is fulfilled.
2. The precast concrete filled steel tube pressure forming device according to claim 1, wherein the counterforce device comprises a first end plate, a second end plate and a plurality of tension screws arranged between the first end plate and the second end plate which are arranged in parallel; and two ends of the opposite-pulling screw rod are fixedly connected with the first end plate and the second end plate through nuts.
3. The apparatus of claim 2, wherein the tie bolts are symmetrically disposed at upper and lower portions of the first and second end plates.
4. The pressure forming device for the steel tube concrete prefabricated part according to claim 1, wherein two ends of the stroke section steel tube are open, one end of the forming section steel tube connected with the stroke section steel tube is open, and the other end of the forming section steel tube connected with the stroke section steel tube is closed; the inner diameter of the steel pipe in the stroke section is smaller than or equal to that of the steel pipe in the forming section.
5. The pressure forming device for the steel tube concrete prefabricated part according to claim 1 or 4, wherein the pushing piston is a steel cylinder with two closed ends, the outer diameter of the steel cylinder is smaller than or equal to the inner diameter of the steel tube in the stroke section, and the length of the steel cylinder is smaller than or equal to the length of the steel tube in the stroke section.
6. The pressure forming device for the concrete-filled steel tube prefabricated part according to claim 1 or 4, wherein the forming section steel tube and the stroke section steel tube are coaxially connected through a flange, and a sealing ring is arranged at the connecting position.
7. The steel tube concrete prefabricated part pressure forming device according to claim 1, wherein the pressure system comprises an oil cylinder and a pump station for controlling the oil cylinder, and an oil cylinder rod of the oil cylinder is coaxially and fixedly connected with the pushing piston.
8. The apparatus according to claim 1, wherein a first bottom bracket is provided below the pressurizing system; and a second bottom bracket is arranged below the concrete-filled steel tube member.
9. The precast concrete filled steel tube member press-forming apparatus according to claim 8, further comprising a first reaction frame support and a second reaction frame support; one end of the counterforce device and the first bottom bracket are arranged on the first counterforce frame support; the other end of the reaction device and the second bottom bracket are mounted on the second reaction frame support.
10. The pressure forming device for the steel tube concrete prefabricated part according to the claim 1, wherein the material of the stroke section steel tube and the forming section steel tube is Q235, Q355 or Q460 steel; the concrete is made of concrete with the mark C60 and above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221422147.6U CN217670093U (en) | 2022-06-08 | 2022-06-08 | Steel pipe concrete prefabricated part pressure forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221422147.6U CN217670093U (en) | 2022-06-08 | 2022-06-08 | Steel pipe concrete prefabricated part pressure forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217670093U true CN217670093U (en) | 2022-10-28 |
Family
ID=83708044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221422147.6U Active CN217670093U (en) | 2022-06-08 | 2022-06-08 | Steel pipe concrete prefabricated part pressure forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217670093U (en) |
-
2022
- 2022-06-08 CN CN202221422147.6U patent/CN217670093U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104416675A (en) | Manufacturing process of pre-tensioned prestressed centrifugal concrete square pile | |
| CN110306726B (en) | Composite structure and manufacturing method thereof | |
| CN217670093U (en) | Steel pipe concrete prefabricated part pressure forming device | |
| CN217106193U (en) | Construction device for compressing and pouring reinforced concrete beam and column | |
| CN207988359U (en) | Concrete filled steel tube high pressure forming device and concrete filled steel tube | |
| CN2788999Y (en) | Centrifugal concret square pile mould | |
| CN108527640B (en) | Method for preparing pre-stress prefabricated member | |
| CN105729621A (en) | Concrete member prefabrication component | |
| CN101210414B (en) | Fastening positioning device for suspension bridge main cable construction | |
| CN112895113B (en) | Multifunctional prestressed concrete pipe and manufacturing method thereof | |
| CN107143124B (en) | Superpressure scaffold steel pipe | |
| CN202607795U (en) | Novel machine frame structure for plate frame type brick molding machine | |
| CN115263018A (en) | Multistage-reset multistage-energy-consumption buckling-restrained brace | |
| CN114396192A (en) | Plug-in type concrete-filled steel tube column base for large power transmission tower and construction method thereof | |
| CN209453784U (en) | Brick pressing device is used in a kind of production of autoclave aerated concrete building block | |
| CN208179878U (en) | Precast concrete pre-stress die | |
| CN1736625A (en) | Closed type three poles framework for support | |
| CN206521731U (en) | A kind of eco-concrete hinge revetment block | |
| CN105690542B (en) | Building block processing unit (plant) is used in one kind experiment | |
| CN2172193Y (en) | Hydraulic-controlled metal inner mould | |
| CN210127411U (en) | Steel pipe concrete jacking check valve | |
| CN217915862U (en) | Cement-based material compaction forming filter pressing device | |
| CN209760794U (en) | Double-channel steel reinforced formwork for high-rise large-section column construction | |
| CN220284598U (en) | Grouting die carrier for large bridge support | |
| CN213732486U (en) | Cross baffle for PC pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |