CN102155068B - Anchorage device and method for reinforcing silo by using prestressed steel strand - Google Patents
Anchorage device and method for reinforcing silo by using prestressed steel strand Download PDFInfo
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- CN102155068B CN102155068B CN 201110049689 CN201110049689A CN102155068B CN 102155068 B CN102155068 B CN 102155068B CN 201110049689 CN201110049689 CN 201110049689 CN 201110049689 A CN201110049689 A CN 201110049689A CN 102155068 B CN102155068 B CN 102155068B
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Abstract
The embodiment of the invention discloses an anchorage device for reinforcing a silo by using a prestressed steel strand. The anchorage device comprises a bottom plate, two end plates and two base plates, wherein the end plates are arranged at the two ends of the bottom plate respectively, and form set angles with the plate surface of the bottom plate; each end plate is provided with a first punch hole and a second punch hole; the first punch hole and the second punch hole are respectively positioned on the top and the bottom of each end plate, and are positioned on the same vertical straight line; the two base plates cling to the outer side face of each end plate respectively; each base plate is provided with a third punch hole; the third punch hole is communicated with the first punch hole; and each second punch hole is partially exposed out of each base plate. After the steel strand is wound on the silo by two circles, the two ends of the steel strand are respectively penetrated in from the second punch holes of the end plates on both sides and penetrated out of the first punch hole on the other end plate, the first punch holes and the second punch holes are not positioned at the same elevation, and the anchorage device is suspended on the outer wall of the silo when the end part of the steel strand is in a stretched state, so the local cracking of the silo under the action of the pressure of the anchorage device is avoided. The invention also discloses a method for reinforcing the silo by using the prestressed steel strand.
Description
Technical field
The present invention relates to the building reinforce technical field, more particularly, relate to a kind of method of prestress steel strand reinforced silo.
Background technology
Now, the reinforced concrete structure (silo, tubular pond etc.) for some tubulars needs it is reinforced after building up, and prevents the stress damage that occurs after it uses for a long time.In numerous reinforcement measures, adopting the steel strand reinforced method of external prestressing is present commonplace method, and the steel strand reinforced advantage of external prestressing is: but balance is laid down the part dead load; Reinforcement material can be given full play to, supporting capacity and the rigidity of structure of structure can be improved greatly; External prestressing steel strand amplitude of variation is little, without fatigue problem, is convenient to change; Can effectively control crack and the amount of deflection of original structure, make the crack partly or entirely closed, amount of deflection is significantly reduced, can obviously improve the cracking resistance of original structure, improve the durability of structure; Can control the stress with the external steel strand of adjustment; Reinforcing is little on the use impact of existing structure; Needed equipment is simple, and the construction period is short, remarkable in economical benefits.
But, the ground tackle volume ratio that adopts in the steel strand reinforced process of external prestressing that adopts now is larger, ground tackle is fixed on the outer wall of silo in the process of using, then prestress wire is fixed on the ground tackle, the ground tackle of above-mentioned fixedly steel strand is fixed on the outer wall of reinforced concrete structure of tubular, and need to concentrate anchoring, front anchoring position is set carries out local resistance to compression, crack resisting calculation also will be stopped the intersection space of presstressed reinforcing steel, on the outer wall of above-mentioned ground tackle owing to the reinforced concrete structure that is fixed on tubular, on the structure outer wall fixedly the position of ground tackle be subject to for a long time the pressure of ground tackle, easily cause Local Cracking, the silo that fracture is had relatively high expectations exerts an adverse impact.
Summary of the invention
In view of this, the invention provides a kind of prestress steel strand reinforced silo ground tackle, pass this ground tackle by steel strand, under the effect of the tensile force of steel strand, realization is in the process of anchoring, ground tackle does not contact with the outer wall of silo, so that ground tackle is suspended on the silo outer wall, has avoided the impact of ground tackle on the silo outer wall.
In order to achieve the above object, the embodiment of the invention provides following technical scheme:
The invention provides a kind of method of prestress steel strand reinforced silo, the prestress steel strand reinforced silo ground tackle of employing comprises base plate;
Two end plates, be separately positioned on the two ends of described base plate, and the plate face of each end plate becomes set angle with the plate face of described base plate, be provided with the first perforation on described each end plate, the second perforation and groove, described the first perforation and the second perforation lay respectively at top and the bottom of described end plate, and are located on the same line;
Two backing plates are close to respectively on the lateral surface of each described end plate, are provided with the 3rd perforation on each described backing plate, described the 3rd perforation communicates with described the first perforation, described groove exposes to backing plate, and described the second perforated portion exposes to described backing plate, and the method may further comprise the steps:
101) to processing ground tackle standing groove on the outer wall of described silo;
102) with behind the some circles of the described silo of prestress steel twist wire-wound, the two ends of described prestress wire are pierced into from the second perforation of two end plates of described ground tackle respectively, and from the first perforation of another end plate, passed;
103) the steel fabric sheet topping is set outside prestress wire.
Preferably, in the method for above-mentioned prestress steel strand reinforced silo, in step 101) and step 102) between also be included in described silo outer wall gauze wire cloth basic unit is set.
Preferably, in the method for above-mentioned prestress steel strand reinforced silo, in step 103) also comprise afterwards hook is set, described steel fabric sheet topping is connected with gauze wire cloth basic unit.
As shown from the above technical solution, the prestress steel strand reinforced silo that the embodiment of the invention provides is with in the ground tackle, be provided with end plate by the two ends at base plate, be provided with the first perforation on two end plates, the second perforation and groove, the first perforation and the second perforation lay respectively at top and the bottom of end plate, and be located along the same line, in the reinforcing process of prestress wire, steel strand are behind several circles of silo, two ends penetrate from second of the end plate of both sides respectively, first passing from another relative end plate, because the first perforation and the second perforation be not on same absolute altitude, the end of the steel strand of this moment is in an outwards state of stretching so, under the effect of Zhang Shenli, ground tackle is propped up, realized self-balancing, and the ground tackle of this moment is suspended on the outer wall of silo, avoid the outer wall of silo in the prior art to be subject to for a long time the pressure of ground tackle and the situation of Local Cracking easily occurred, the application life of having improved silo.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The prestress steel strand reinforced silo that Fig. 1 provides for the embodiment of the invention is fixed on structural representation on the silo with ground tackle;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the side-looking structural representation of Fig. 1;
The prestress steel strand reinforced silo that Fig. 4 provides for the embodiment of the invention structural representation of the end plate in the ground tackle;
The prestress steel strand reinforced silo that Fig. 5 provides for the embodiment of the invention structural representation of the backing plate in the ground tackle;
The method flow diagram of the prestress steel strand reinforced silo that Fig. 6 provides for the embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention discloses a kind of prestress steel strand reinforced silo ground tackle, pass this ground tackle by steel strand, under the effect of steel strand Zhang Shenli, realize the process of anchoring, this ground tackle does not contact with the outer wall of silo under the Zhang Shenli of steel strand, has avoided the silo outer wall to be subject to for a long time the pressure of ground tackle and situation about ftractureing.
Please refer to accompanying drawing 1-5, the prestress steel strand reinforced silo that Fig. 1 provides for the embodiment of the invention is fixed on structural representation on the silo with ground tackle; Fig. 2 is the top view of Fig. 1; Fig. 3 is the side-looking structural representation of Fig. 1; The prestress steel strand reinforced silo that Fig. 4 provides for the embodiment of the invention structural representation of the end plate in the ground tackle; Fig. 5 provides the structural representation of prestress steel strand reinforced silo with the backing plate in the ground tackle for the embodiment of the invention.
In the prestress wire that provides in the embodiment of the invention, comprising:
Two end plates, be respectively end plate 4 and end plate 5, wherein: end plate 4 and end plate 5 are separately positioned on the two ends of base plate 8, and are the angle of setting between two end plates and the base plate 8, and end plate 4 is identical with the structure of end plate 5, take end plate 5 as example, be provided with the first perforation the 51, second perforation 52 and groove 53 on it, wherein, the first perforation the 51 and second perforation 52 lays respectively at top and the bottom of end plate, and the first perforation the 51 and second perforation 52 is slotted eye, and is located on the same line;
Two backing plates are respectively backing plate 7 and backing plate 6, wherein, backing plate 7 is close on the end plate 4, backing plate 6 is close on the end plate 5, and the structure of two backing plates is identical, take backing plate 6 as example, be provided with the 3rd perforation 61 on the backing plate 6, two backing plates are close on the end plate, are provided with the 3rd perforation on the backing plate, and the 3rd perforation communicates with the first perforation, groove exposes to backing plate, and described the second perforated portion exposes to backing plate.
The prestress steel strand reinforced silo that the embodiment of the invention provides is with in the ground tackle, be provided with end plate by the two ends at base plate, be provided with the first perforation on two end plates, the second perforation and groove, the first perforation and the second perforation lay respectively at top and the bottom of end plate, and be located along the same line, in the reinforcing process of prestress wire, steel strand are behind several circles of silo, two ends penetrate from second of the end plate of a side respectively, first passing from another relative separately end plate, because the first perforation and the second perforation be not on same absolute altitude, the end of the steel strand of this moment is in an outwards state of stretching so, under the effect of Zhang Shenli, ground tackle is propped up, realize self-balancing, and the ground tackle of this moment is suspended on the outer wall of silo 1, has avoided the outer wall of silo in the prior art to be subject to for a long time the pressure of ground tackle and the situation of Local Cracking, the application life of having improved silo easily occur.
The prestress steel strand reinforced silo ground tackle that provides in above-described embodiment, the angle between end plate and the base plate are 75 °～85 °, and the angle between preferred end plate and the base plate is 80 °.
The prestress steel strand reinforced silo that provides in above-described embodiment also arranges energetically plate 9 with in the ground tackle in the both sides of base plate, and the two ends of strength plate 9 contact with end plate, play good supporting role.
Please refer to accompanying drawing 6 and accompanying drawing 1, based on the prestress steel strand reinforced silo ground tackle that provides in above-described embodiment, the embodiment of the invention provides a kind of method of prestress steel strand reinforced silo, adopts foregoing ground tackle, may further comprise the steps:
101, to processing ground tackle standing groove on the outer wall of described silo 1, and ground tackle is placed in the ground tackle standing groove in advance;
Outer wall at silo in this step is provided with the ground tackle standing groove, just plays the effect of interim placement ground tackle, in the reinforcing process of silo, first ground tackle is placed in the ground tackle standing groove;
102, with behind the some circles of the described silo of prestress steel twist wire-wound, two ends with described prestress wire, as shown in Figure 1, one end 2 of prestress wire and the other end 3 are pierced into from the second perforation of two end plates of described ground tackle respectively, and pass from the first perforation of another relative separately end plate;
103, the steel fabric sheet topping is set outside prestress wire.
In the method for the prestress steel strand reinforced silo that the embodiment of the invention provides, outer wall at silo arranges the ground tackle standing groove, before reinforcing, ground tackle is placed in the ground tackle standing groove, behind several circles of prestress steel twist wire-wound silo, the two ends of prestress wire are pierced into the second perforation from two relative end plates respectively, and from the first perforation of another relative separately end plate, pass, on the first perforation on two end plates and the no longer same absolute altitude of the second perforation, so the prestress wire that passes from the first perforation of two end plates is in a state of stretching, open under the effect of stretching at prestress wire ground tackle is propped up, ground tackle converges the two ends of steel strand fixing, this moment, ground tackle was suspended on the outer wall of silo, had avoided the damage of ground tackle to the silo outer wall.
In the method for the prestress steel strand reinforced silo that provides in the embodiment of the invention, the outer wall that also is included in described silo between step 101 and step 102 arranges gauze wire cloth basic unit, has improved the fastening strength to silo.
In the method for the prestress steel strand reinforced silo that provides in the embodiment of the invention, after step 103, also comprise hook is set, the steel fabric sheet topping is connected with gauze wire cloth basic unit.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. the method for a prestress steel strand reinforced silo, the prestress steel strand reinforced silo of employing comprises base plate with ground tackle;
Two end plates, be separately positioned on the two ends of described base plate, and the plate face of each end plate becomes set angle with the plate face of described base plate, be provided with the first perforation on described each end plate, the second perforation and groove, described the first perforation and the second perforation lay respectively at top and the bottom of described end plate, and are located on the same line;
Two backing plates, be close to respectively on the lateral surface of each described end plate, be provided with the 3rd perforation on each described backing plate, described the 3rd perforation communicates with described the first perforation, described groove exposes to backing plate, described the second perforated portion exposes to described backing plate, it is characterized in that, the method may further comprise the steps:
101) process the ground tackle standing groove at the outer wall of described silo;
102) with behind the some circles of the described silo of prestress steel twist wire-wound, the two ends of described prestress wire are pierced into from the second perforation of two end plates of described ground tackle respectively, and from the first perforation of another end plate, passed;
103) the steel fabric sheet topping is set outside prestress wire.
2. the method for prestress steel strand reinforced silo according to claim 1 is characterized in that, in step 101) and step 102) between also be included in described silo outer wall gauze wire cloth basic unit is set.
3. in the method for prestress steel strand reinforced silo according to claim 2, it is characterized in that, in step 103) also comprise afterwards hook is set, described steel fabric sheet topping is connected with gauze wire cloth basic unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110049689 CN102155068B (en) | 2011-03-01 | 2011-03-01 | Anchorage device and method for reinforcing silo by using prestressed steel strand |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110049689 CN102155068B (en) | 2011-03-01 | 2011-03-01 | Anchorage device and method for reinforcing silo by using prestressed steel strand |
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| CN102155068A CN102155068A (en) | 2011-08-17 |
| CN102155068B true CN102155068B (en) | 2013-01-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835520A (en) * | 2012-11-20 | 2014-06-04 | 王哲 | Strengthening method for exerting hooping force on columnar structure through multi-layer wound tension belt |
| CN103147589B (en) * | 2013-02-26 | 2015-05-27 | 北京交通大学 | Construction method for reinforcing circular structure with large diameter by symmetric double-anchor-head pretension steel stranded wires |
| CN105804326A (en) * | 2016-04-07 | 2016-07-27 | 柳州欧维姆结构检测技术有限公司 | Back-and-forth winding type prestressed steel wire rope anchoring system and construction method thereof |
| CN106930587B (en) * | 2017-03-03 | 2018-10-23 | 苏州中材建设有限公司 | Novel pre-stressed cement produced with the dry method silo and reinforcement means |
| CN107905453A (en) * | 2017-12-19 | 2018-04-13 | 中冶焦耐(大连)工程技术有限公司 | Using floating anchoring body to the steel strand reinforced structure of the external prestressing of round silo |
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|---|---|---|---|---|
| US6247279B1 (en) * | 1998-03-24 | 2001-06-19 | University Of Ottawa | Retrofitting existing concrete columns by external prestressing |
| CN1546823A (en) * | 2003-11-28 | 2004-11-17 | 广东省建筑科学研究院 | Prestressed steeling reinforcement method for concrete column |
| CN101397854A (en) * | 2008-01-23 | 2009-04-01 | 贵州大学 | Enveloping prestressing force fastening type steel tube concrete column and reinforcement method |
| CN101748900A (en) * | 2009-12-10 | 2010-06-23 | 华侨大学 | Reinforcement method of reinforced concrete beam column node |
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2011
- 2011-03-01 CN CN 201110049689 patent/CN102155068B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6247279B1 (en) * | 1998-03-24 | 2001-06-19 | University Of Ottawa | Retrofitting existing concrete columns by external prestressing |
| CN1546823A (en) * | 2003-11-28 | 2004-11-17 | 广东省建筑科学研究院 | Prestressed steeling reinforcement method for concrete column |
| CN101397854A (en) * | 2008-01-23 | 2009-04-01 | 贵州大学 | Enveloping prestressing force fastening type steel tube concrete column and reinforcement method |
| CN101748900A (en) * | 2009-12-10 | 2010-06-23 | 华侨大学 | Reinforcement method of reinforced concrete beam column node |
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