CN202719075U - Device used for anchoring prestressing strand and wind driven generator tower using the same - Google Patents

Device used for anchoring prestressing strand and wind driven generator tower using the same Download PDF

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Publication number
CN202719075U
CN202719075U CN2012203772664U CN201220377266U CN202719075U CN 202719075 U CN202719075 U CN 202719075U CN 2012203772664 U CN2012203772664 U CN 2012203772664U CN 201220377266 U CN201220377266 U CN 201220377266U CN 202719075 U CN202719075 U CN 202719075U
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CN
China
Prior art keywords
flange
prestressed cable
tower
hole
cable hole
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CN2012203772664U
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Chinese (zh)
Inventor
张紫平
郝华庚
丛欧
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Priority to CN2012203772664U priority Critical patent/CN202719075U/en
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    • Y02E10/722

Abstract

The utility model discloses a device used for anchoring a prestressing strand and a wind driven generator tower using the same and relates to the technical field of wind power generation. The device used for anchoring the prestressing strand is invented to reduce flange weight and meanwhile improve bearing capacity of a flange. The device used for anchoring the prestressing strand comprises the flange and a wedge-shaped ground tackle, the flange is provided with a prestressing strand hole which is a taper hole, the prestressing strand penetrates through the prestressing strand hole, and the wedge-shaped ground tackle is arranged between the prestressing strand hole and the prestressing strand. The utility model further discloses the wind driven generator tower using the device used for anchoring the prestressing strand. The wind driven generator tower is used to support a wind driven generator.

Description

Be used for the device of anchoring prestress rope and use the wind-driven generator tower frame of this device
Technical field
The utility model relates to technical field of wind power generation, relates in particular to a kind of device for the anchoring prestress rope and uses the wind-driven generator tower frame of this device.
Background technique
Along with the continuous lifting of Large-scale Wind Turbines power, pre-stress type concrete-steel mixing pylon begins to be used widely.At present, prestressed concrete-steel mixing pylon mainly is that the steel tower section by the prestressed-concrete tower segment of bottom and top combines, and its bearing capacity is high, anti-fatigue ability is strong, and application prospect is very wide.In existing pre-stress type concrete-steel mixing pylon, concrete tower segment mainly utilizes flange to be connected with steel tower section, employing is offered the mode of macropore and aperture at flange, is respectively applied to the fixing of prestressed cable and bolt, and prestressed cable and nut all are fixed on the flange upper-end surface.By this device, the end of prestressed cable can be fixed at the bottom of the steel tower section on the flange, so that concrete tower segment and steel tower section are connected to become an integral body effectively.
As shown in Figure 1, in the prior art, prestressed cable 14 ends fixedly be by on the flange 11 that connects steel tower section, anchor slab 12 being set, wherein on flange 11 and the anchor slab 12 all correspondence be provided with cylindrical prestressed rope hole 13, the end of prestressed cable 14 pass prestressed cable hole 13 on the flange 11 and the prestressed cable hole 13 on the anchor slab 12 ' after, anchor slab 12 is fixed with the end of prestressed cable 14, so that the end of prestressed cable 14 stably is fixed on the flange 11.
Because in said structure, anchor slab 12 itself has one fixed width and thickness, and 13 centers, prestressed cable hole on the flange 11 need to be corresponding with the 13 ' center, prestressed cable hole (being called the prestress anchoraging point) on the anchor slab 12, so 13 centers, prestressed cable hole on the flange 11 will at least greater than the radius R of anchor slab, must guarantee that like this flange 11 has larger width with the horizontal equivalent H of corresponding steel tower section tower cylinder 15.But in order to guarantee the rigidity of flange 11, when flange 11 width strengthened, its thickness also needed corresponding increase, thereby causes flange 11 weight larger, and manufacture cost is higher.Simultaneously, this also will be so that stressed the horizontal equivalent that the stressed and prestressed cable 14 that the tower cylinder 15 of steel tower section is gone up is in the x-direction gone up in the y-direction be larger, and namely the arm of force is larger, so that the bearing capacity of flange 11 is limited.
Summary of the invention
Embodiment of the present utility model provides a kind of device for the anchoring prestress rope and uses the wind-driven generator tower frame of this device, has solved that existing flange weight is large, the limited problem of bearing capacity.
For achieving the above object, embodiment of the present utility model adopts following technological scheme:
A kind of device for the anchoring prestress rope, comprise flange and wedge shape ground tackle, described flange is provided with the prestressed cable hole, and described prestressed cable hole is cone shape hole, prestressed cable passes described prestressed cable hole, and described wedge shape ground tackle is between described prestressed cable hole and described prestressed cable.
Further, described prestressed cable hole is along the many rows of being arranged circumferentially of described flange.
Particularly, described prestressed cable hole is double along being arranged circumferentially of described flange.
Further, described flange is L-type or T-shaped.
Wherein, described flange is connected with the tower cylinder of steel tower section, and described prestressed cable hole is positioned at inboard and/or the outside of described tower cylinder.
Preferably, described prestressed cable hole evenly distributes along the hoop of described flange.
A kind of wind-driven generator tower frame comprises concrete tower segment and steel tower section, and described concrete tower segment is connected by above-described device for the anchoring prestress rope with described steel tower section.
The device that is used for the anchoring prestress rope that the utility model embodiment provides and the wind-driven generator tower frame that uses this device, because the prestressed cable hole of flange is cone shape hole, and between this prestressed cable hole and prestressed cable, the wedge shape ground tackle is set, therefore realized that clamping to prestressed cable is with fixing.Simultaneously owing to more roomy anchor slab need to be set on flange, the prestressed cable hole can be arranged on the position of close steel tower section tower cylinder, thereby so that the width of flange reduce, and then so that flange weight reduce; Because stressed horizontal equivalent of the stressed and prestressed cable of tower cylinder reduces, namely the arm of force reduces, thereby has promoted the load carrying power of flange in addition.
Description of drawings
Fig. 1 is the schematic representation of the device for the anchoring prestress rope of the prior art;
The schematic representation of a kind of device for the anchoring prestress rope that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the floor map of device shown in Figure 2;
The another kind that Fig. 4 provides for the utility model embodiment is used for the schematic representation of the device of anchoring prestress rope;
Fig. 5 is the floor map of device shown in Figure 4;
Fig. 6 is the sectional perspective schematic representation of device shown in Figure 4.
Embodiment
The wind-driven generator tower frame that the utility model embodiment is used for the device of anchoring prestress rope and contains this device below in conjunction with accompanying drawing is described in detail.
As shown in Figure 2, a specific embodiment that is used for the device of anchoring prestress rope for the utility model, in the present embodiment, comprise flange 21 and wedge shape ground tackle 22, described flange 21 is provided with prestressed cable hole 23, described prestressed cable hole 23 is cone shape hole, and prestressed cable 24 passes described prestressed cable hole 23, and described wedge shape ground tackle 22 is between described prestressed cable hole 23 and described prestressed cable 24.
As shown in Figure 2, the device that is used for the anchoring prestress rope in the present embodiment, 23 centers, prestressed cable hole are the prestress anchoraging point, because the prestressed cable hole 23 of flange 21 is cone shape hole, and between this prestressed cable hole 23 and prestressed cable 24, be provided with wedge shape ground tackle 22, when prestressed cable 24 is subject to pulling force on the y direction, wedge shape ground tackle 22 moves to direction of pull in the lump with prestressed cable 24, so that wedge shape ground tackle 22 progressively steps up prestressed cable 24 when moving along cone shape hole aperture direction, therefore the cooperation by the wedge shape ground tackle 22 that arranges in prestressed cable hole 23 and this hole realize to the clamping of prestressed cable 24 with fix.And the perforation that prestressed cable hole 23 itself is arranged on the flange 21, the shape that changes this hole is to belong to directly to utilize the structural improvement of flange itself, this improvement is not increase the flange width and highly on the basis, be in the less situation of flange 21 weight, realization is to the locking of prestressed cable 24, simultaneously, since the position (being central position, prestressed cable hole) of prestress anchoraging point can be arranged on the wind-driven generator tower frame (not shown) on the nearer position of the horizontal equivalent H of tower cylinder 25 of steel tower section, therefore so that the tower cylinder 25 of steel tower section go up stressed in the x-direction and prestressed cable to go up in the y-direction stressed horizontal equivalent also less, be that the arm of force reduces, thereby promoted the load carrying power of flange.
Prestressed cable hole 23 on the flange 21 shown in Figure 3 is single setting.Certainly, described prestressed cable hole 23 also can be provided with many rows along the hoop of described flange 21.
Because the anchor of prestressed cable is to utilize the prestressed cable hole 23 of cone shape hole and wedge shape ground tackle 22 to cooperate, utilize compared to existing technology the anchorage style of anchor slab 12, realized in the distance between each prestress anchoraging point on the flange 21, therefore can on the basis that does not increase flange 21 width and height, more prestressed cable 24 can be set.Such as Fig. 4, Fig. 5 and shown in Figure 6, described prestressed cable hole 23 hoops along described flange 21 are preferably double setting.Because a plurality of prestressed cables hole 23 is set namely can arrange a plurality of prestressed cables 24, and prestressed cable more than 24, so that the bearing capacity of wind-driven generator tower frame is higher, also so that wind-driven generator tower frame is more stable firmly.
Flange in the described device of present embodiment can be L-type or T-shaped.Described flange is connected with the tower cylinder of steel tower section, and described prestressed cable hole is positioned at inboard and/or the outside of described tower cylinder.
Particularly, when the edge section of flange is connected with the tower cylinder of steel tower section, axial slices that the tower cylinder links to each other with flange forms L-type, and when the projection of L-type flange is when being formed centrally in the tower cylinder of steel tower section, the prestressed cable hole is positioned at the inboard of described tower cylinder; When being formed centrally in the projection of L-type flange is the tower cylinder of dorsad steel tower section, the prestressed cable hole is positioned at the outside of described tower cylinder.For example, such as Fig. 2 and shown in Figure 4, the edge section of flange 21 is integrated with the tower cylinder 25 of steel tower section and is connected, tower cylinder 25 forms L-type with the axial slices of flange 21, the projection of flange 21 is to be formed centrally in the tower cylinder 25 of steel tower section simultaneously, and prestressed cable hole 23 is positioned at the inboard of described tower cylinder 25.
When the intermediate portion of flange is connected with the tower cylinder of steel tower section, the axial slices of tower cylinder and flange attachment portion forms T-shaped, be the inboard that the part of flange is positioned at the tower cylinder, another part is positioned at the outside of tower cylinder, so the prestressed cable hole can be positioned at the inboard of described tower cylinder; Also can be positioned at the outside of described tower cylinder, certainly, the prestressed cable hole can also be separately positioned on the inside and outside both sides that are positioned at the tower cylinder.According to concrete needs, position and the row in prestressed cable hole on the flange can be set flexibly.
What further specify is that described prestressed cable hole 23 can be arranged along unequal-interval on the hoop of described flange 21.Also can be preferably, prestressed cable hole 23 evenly distributes along the hoop of described flange 21, and the even distribution of prestressed cable 23 is so that flange is stressed more even, more firm like this.
The utility model embodiment also provides a kind of wind-driven generator tower frame that uses the device that is used for the anchoring prestress rope of above-described embodiment description, comprise concrete tower segment and steel tower section, described concrete tower segment is connected by the device that is used for the anchoring prestress rope described in the previous embodiment with described steel tower section.
In the wind-driven generator tower frame that the utility model embodiment provides, because the device that is used for the anchoring prestress rope that has adopted above-described embodiment to describe, the weight of flange is reduced, can also promote the load carrying power of flange, thereby also make wind-driven generator tower frame have higher bearing capacity.
Need to prove, on the flange 21 bolt hole can be set, be used for by bolt flange further being fixed on the tower cylinder of concrete tower segment, described wedge shape ground tackle 22 can be steel, and the wedge shape ground tackle can be provided with worm tooth on the surface, so that prestressed cable can be securely fixed in the prestressed cable hole 23 more.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by described protection domain with claim.

Claims (7)

1. device that is used for the anchoring prestress rope, it is characterized in that, comprise flange and wedge shape ground tackle, described flange is provided with the prestressed cable hole, described prestressed cable hole is cone shape hole, prestressed cable passes described prestressed cable hole, and described wedge shape ground tackle is between described prestressed cable hole and described prestressed cable.
2. device according to claim 1 is characterized in that, described prestressed cable hole is along the many rows of being arranged circumferentially of described flange.
3. device according to claim 2 is characterized in that, described prestressed cable hole is double along being arranged circumferentially of described flange.
4. device according to claim 1 is characterized in that, described flange is L-type or T-shaped.
5. device according to claim 1 is characterized in that, described flange is connected with the tower cylinder of steel tower section, and described prestressed cable hole is positioned at inboard and/or the outside of described tower cylinder.
6. device according to claim 1 is characterized in that, described prestressed cable hole evenly distributes along the hoop of described flange.
7. a wind-driven generator tower frame comprises concrete tower segment and steel tower section, it is characterized in that, described concrete tower segment is connected by each described device for the anchoring prestress rope of claim 1-6 with described steel tower section.
CN2012203772664U 2012-07-31 2012-07-31 Device used for anchoring prestressing strand and wind driven generator tower using the same Active CN202719075U (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012203772664U CN202719075U (en) 2012-07-31 2012-07-31 Device used for anchoring prestressing strand and wind driven generator tower using the same

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033340A (en) * 2014-04-17 2014-09-10 中国电建集团西北勘测设计研究院有限公司 Wind power generation precast concrete tower internal pre-stress tension method
CN105275753A (en) * 2015-11-13 2016-01-27 北京市建筑工程研究院有限责任公司 Anchor used for prestressed concrete tower
CN111517258A (en) * 2020-05-08 2020-08-11 芜湖市爱德运输机械有限公司 Steel wire fixing device and steel wire adhesive tape hoister

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033340A (en) * 2014-04-17 2014-09-10 中国电建集团西北勘测设计研究院有限公司 Wind power generation precast concrete tower internal pre-stress tension method
CN104033340B (en) * 2014-04-17 2016-07-27 中国电建集团西北勘测设计研究院有限公司 Pre-stress stretching method in a kind of wind power generation precast concrete tower body
CN105275753A (en) * 2015-11-13 2016-01-27 北京市建筑工程研究院有限责任公司 Anchor used for prestressed concrete tower
CN105275753B (en) * 2015-11-13 2017-09-29 北京市建筑工程研究院有限责任公司 A kind of prestressed concrete tower frame anchorage
CN111517258A (en) * 2020-05-08 2020-08-11 芜湖市爱德运输机械有限公司 Steel wire fixing device and steel wire adhesive tape hoister

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