CN210002436U - Pre-buried horn mouth bearing pressure reinforcing structure in fan basis - Google Patents
Pre-buried horn mouth bearing pressure reinforcing structure in fan basis Download PDFInfo
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- CN210002436U CN210002436U CN201822170507.8U CN201822170507U CN210002436U CN 210002436 U CN210002436 U CN 210002436U CN 201822170507 U CN201822170507 U CN 201822170507U CN 210002436 U CN210002436 U CN 210002436U
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Abstract
The utility model provides a pre-buried horn mouth bearing force reinforcement structure in fan foundation, including the steel backing plate, the steel backing plate upper surface leans on fan basis center side to use steel construction and steel backing plate welding as the support, makes the steel backing plate decide the angle inwards that inclines, is used for guaranteeing to reserve prestressing force pore canal and pre-buried horn mouth pore concentric with the fan basis, and the steel backing plate upper surface is reserved prestressing force pore canal bottom with the fan basis and is filled the bonding through epoxy mortar in the space that concrete from this formed all around in the pre-buried horn mouth bottom, and prestressing anchor cable freely passes from the reservation prestressing force pore canal and the pre-buried horn mouth pore of concrete tower section of thick bamboo and fan basis the trompil of steel backing plate to it is fixed with the steel backing plate through the ground tackle that prestressing anchor cable used, the utility model discloses can reliably reinforce effectively to the bearing force of pre-buried horn mouth in prestressing anchor cable tensioning process in the fan basis, improved mixed anchor cable prestressing anchor and anchor sealing quality, have broad push and application prospect.
Description
Technical Field
The utility model relates to a pre-buried horn mouth bearing pressure reinforcing structure in hollow extension formula of prestressing force round platform mixes pylon fan foundation mainly is applied to in the construction of wind power generation engineering prestressed anchorage cable stretch-draw, especially raises the application scenario on fan foundation.
Background
Compared with a base ring which is well applied and a solid fan foundation of an anchor bolt cage type, the fan foundation of the type is different in that a foundation middle pier is of a hollow expansion type structure, a horn mouth and a spiral rib are embedded in each reserved prestressed pore channel along circles of the foundation middle pier in the binding process of a foundation reinforcing steel bar, an upper concrete tower barrel is connected with the foundation middle pier through a tensioned prestressed anchor cable after the foundation concrete is poured and formed, in actual construction, because reinforcing steel bars around the reserved prestressed pore channels of the middle pier are densely distributed during pouring of the foundation concrete, gaps are small, the concrete vibration difficulty is increased, and the quality problem of honeycomb pitted surfaces of concrete around the horn mouth is easily caused by the fact that the concrete around the horn mouth is not compacted due to vibration is easily caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide pre-buried horn mouth bearing stress reinforcement structure in kind of fan basis, can be used for the mixed pylon of hollow extension formula of prestressing force round platform to raise the pre-buried horn mouth bearing stress reinforcement of fan basis, moreover, the steam generator is simple in structure, method easy operation is convenient, concrete all around the pre-buried horn mouth of prestressing force hole way lower extreme can reliably effectually reinforce the bearing stress to the horn mouth under the condition that the honeycomb pitted surface phenomenon appears because of vibrating the uncompacted surface when the fan basis, thereby guarantee the stretch-draw quality of prestressed anchorage cable, for this reason, the utility model discloses a following technical scheme:
the pressure-bearing and stress-bearing reinforcing structure of the pre-buried bell mouth in the fan foundation is characterized by comprising a steel base plate, wherein the steel base plate is provided with a hole for a pre-stressed anchor cable to pass through, the side, close to the center of the fan foundation, of the upper surface of the steel base plate is supported by welding a steel structure and the steel base plate, the steel base plate is inclined inwards by fixed angles to be concentric with a pre-stressed hole channel and a pre-buried bell mouth hole channel of the fan foundation, the upper surface of the steel base plate and the concrete at the periphery of the bottom of the pre-buried bell mouth at the bottom of the pre-stressed hole channel of the fan foundation are bonded through mortar filling, the pre-stressed anchor cable freely passes through the holes of the steel base plate from a concrete tower barrel and the pre-stressed hole channel and the pre-buried bell mouth.
, the steel backing plate is closely connected with the concrete surface around the bottom of the pre-buried bell mouth at the bottom of the pre-stressed duct reserved for the fan foundation.
, the hole is arranged in the middle of the steel pad plate, and the diameter of the hole is the same as that of the inner ring at the bottom of the embedded horn mouth hole.
, welding reinforcing bars and the steel backing plate on the upper surface of the steel backing plate close to the center of the fan foundation as the support.
, filling and bonding the upper surface of the steel backing plate and the gap of concrete around the bottom of the pre-buried bell mouth at the bottom of the pre-stressed duct reserved on the fan foundation by epoxy mortar.
, when the anchor cable of the prestressed duct which is provided with the steel pad plate for bearing stress reinforcement is sealed, the anchor sealing barrel is bonded with the bonding surface of the steel pad plate by sealant, externally-leaked prestressed anchor cables and screw rods are selected, the anchor cables and the screw rods are connected together at , and meanwhile, a hole is formed in the bottom of the anchor sealing barrel, so that the screw rods can freely penetrate through the bottom of the anchor sealing barrel and then are screwed by screw caps.
The beneficial effects of the utility model are that when the pre-buried horn mouth of pre-stressed duct lower extreme concrete appears the honeycomb pitted surface phenomenon all around in the concrete pouring process because of the concrete vibration, the utility model discloses a structure can reliably effectually reinforce the bearing force of pre-buried horn mouth in the prestressed anchor cable stretch-draw process in the fan basis to guarantee the smooth stretch-draw of prestressed anchor cable, along with the application of fan basis in the wind-powered electricity generation trade is raised to mixed pylon, this structure has improved mixed pylon prestressed anchor cable stretch-draw and has sealed anchor quality, has wide and the application prospect of pushing away.
Drawings
FIG. 1 is a cross-sectional view of an pre-stressed circular truncated cone hollow expansion type hybrid tower elevating fan foundation structure.
Fig. 2 is a schematic view of an embodiment of the present invention, which is an enlarged view of a portion a of fig. 1.
Fig. 3a and 3b are a top view and a cross-sectional view of a steel shim plate used in an embodiment of the present invention, respectively.
Detailed Description
The present invention is further described in with reference to examples to enable those skilled in the art to practice the invention with reference to the following descriptions.
Referring to the attached drawings, in the embodiment, the utility model discloses an thickness are 50 mm's steel backing plate 1, steel backing plate 1 and fan basis reserve pre-stressed duct 12 bottom pre-buried horn mouth 2 bottom concrete surface all around and hug closely continuously as shown in the figure, need trompil 14 in the middle of this steel backing plate 1, open pore size in 3a, 3b only is used for the example, steel backing plate 1 length of side is confirmed according to on-the-spot actual conditions, the actual trompil diameter is the same with 2 end opening internal diameter sizes of pre-buried horn mouth in the basis or be close can this steel backing plate material is Q235 and above intensity grade's structural steel.
When concrete around the pre-buried bell mouth 2 at the lower end of the pre-stressed duct reserved for the fan foundation is not compacted due to vibration of the concrete in the concrete pouring process, a honeycomb pitted surface phenomenon occurs, besides the conventional repair of the honeycomb pitted surface, the bearing stress of the related bell mouth 2 is reinforced, and as can be seen in the combined drawing of the drawing 1 and the drawing 2, supporting steel bars 3 are pre-buried at the bottom of every pre-buried bell mouths 2 close to the edge of the fan foundation when the fan foundation 200 is constructed, so as to ensure the inclination of the pre-stressed duct 12, therefore, when the fan foundation 200 is installed and used, steel bars 4 with the same diameter and size are also used as supports by spot welding with the steel pad 1 at the side close to the center of the fan foundation, the length of the steel bars 4 is not more than the side length of the steel pad 1, the positions of the two steel bars 3 and 4 are just symmetrically opposite, so as to ensure that the steel pad 1 is inwardly inclined at a certain angle, the opening 14 of the steel pad 1 is adhered with the pre-buried bell mouth 2 on the pre-buried pipe reserved for the pre-stressed duct 2, and the surface of the pre-buried bell mouth 2, so as to form a good tensile mortar, the gap of the fan foundation, and the gap of the fan foundation 2, and the gap of the fan foundation can be adhered with the epoxy mortar, and the epoxy mortar, so as to form a good intensity, and the gap of.
The steel backing plate 1 is additionally arranged and is used for reinforcing the bearing stress of the pre-buried bell mouth in the fan foundation in the tensioning process of the prestressed anchor cable, so that the tensioning quality of the prestressed anchor cable is improved. This steel backing plate is reserved prestressing force duct lower extreme pre-buried horn mouth concrete all around at fan basis and is pour the in-process and recommend the use under the condition of the honeycomb pitted surface phenomenon because of the concrete vibrates the uncompacted and causes, if fan basis reserves prestressing force duct lower extreme pre-buried horn mouth concrete vibrates all around and closely knit not appear honeycomb pitted surface phenomenon, can select this steel backing plate whether to reinforce the bearing force of pre-buried horn mouth according to actual conditions.
After the prestressed anchor cable 13 is tensioned, the anchor sealing barrel can be directly connected with the surface of the foundation concrete by using self-tapping screws when the anchor cable exposed out of the prestressed hole channel without the steel backing plate 1 is sealed, as shown in fig. 2, after the prestressed anchor cable 13 is tensioned, when the anchor cable 13 and the anchorage device 6 of the prestressed hole channel 12 with reinforced bearing force are sealed, the joint surface of the anchor sealing barrel 7 and the steel backing plate 1 is bonded by using sealant, leaked prestressed anchor cables 13 and screw rods 8 are selected, a clamp 9 is additionally arranged at the root part of the anchor cable to connect the anchor cable and the screw rods 8 to , meanwhile, a hole is formed in the bottom of the anchor sealing barrel 7, the screw rods 8 are enabled to freely penetrate through the bottom of the anchor sealing barrel 7 and then screwed by using screw caps 10, the vertical stress of the anchor sealing barrel 7 is effectively strengthened, meanwhile, the later inspection and secondary sealing of the prestressed anchor cable 13 are facilitated, and the quality and the secondary sealing efficiency of the anchor sealing are improved.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art can change, add or replace the above examples within the scope of the present invention.
Claims (5)
1. The pressure-bearing and stress-bearing reinforcing structure of the pre-buried bell mouth in the fan foundation is characterized by comprising a steel base plate, wherein the steel base plate is provided with a hole for a pre-stressed anchor cable to pass through, the side, close to the center of the fan foundation, of the upper surface of the steel base plate is supported by welding a steel structure and the steel base plate, the steel base plate is inclined inwards by fixed angles to be concentric with a pre-stressed hole channel and a pre-buried bell mouth hole channel of the fan foundation, the upper surface of the steel base plate and the concrete at the periphery of the bottom of the pre-buried bell mouth at the bottom of the pre-stressed hole channel of the fan foundation are bonded through mortar filling, the pre-stressed anchor cable freely passes through the holes of the steel base plate from a concrete tower barrel and the pre-stressed hole channel and the pre-buried bell mouth.
2. The wind turbine foundation internal embedded bell-mouth pressure-bearing stress-reinforcing structure as claimed in claim 1, wherein the steel backing plate is closely connected with the concrete surface around the bottom of the embedded bell-mouth at the bottom of the pre-stressed duct reserved for the wind turbine foundation.
3. The pre-buried bellmouth pressure-bearing stress-reinforcing structure in fan foundation of claim 1, characterized in that the hole is arranged in the middle of the steel backing plate, and the diameter of the opening is the same as the diameter of the inner ring at the bottom of the pre-buried bellmouth hole.
4. The pre-buried bellmouth pressure-bearing reinforcing structure in fan foundation of claim 1, characterized in that the steel shim plate upper surface side close to the fan foundation center is welded with steel shim plates by reinforcing bars as the support.
5. The pre-buried bell mouth bearing and pressure bearing reinforcement structure in the fan foundation as claimed in claim 1 or 2, wherein the gap between the upper surface of the steel backing plate and the concrete around the pre-buried bell mouth at the bottom of the pre-stressed duct reserved in the fan foundation is filled and bonded by epoxy mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170507.8U CN210002436U (en) | 2018-12-24 | 2018-12-24 | Pre-buried horn mouth bearing pressure reinforcing structure in fan basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170507.8U CN210002436U (en) | 2018-12-24 | 2018-12-24 | Pre-buried horn mouth bearing pressure reinforcing structure in fan basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210002436U true CN210002436U (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822170507.8U Active CN210002436U (en) | 2018-12-24 | 2018-12-24 | Pre-buried horn mouth bearing pressure reinforcing structure in fan basis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210002436U (en) |
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2018
- 2018-12-24 CN CN201822170507.8U patent/CN210002436U/en active Active
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