CN108221716A - A kind of tensioning equipment and its method for stretching of accurate control prestress value - Google Patents
A kind of tensioning equipment and its method for stretching of accurate control prestress value Download PDFInfo
- Publication number
- CN108221716A CN108221716A CN201810138046.8A CN201810138046A CN108221716A CN 108221716 A CN108221716 A CN 108221716A CN 201810138046 A CN201810138046 A CN 201810138046A CN 108221716 A CN108221716 A CN 108221716A
- Authority
- CN
- China
- Prior art keywords
- section
- diameter
- interior storehouse
- strand wires
- steel strand
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000005728 strengthening Methods 0.000 claims abstract description 35
- 238000004873 anchoring Methods 0.000 claims abstract description 25
- 230000002787 reinforcement Effects 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a kind of tensioning equipments and its method for stretching of accurate control prestress value, it includes steel strand wires connections storehouse, tension rod and anchoring base, steel strand wires connections storehouse includes the interior storehouse being connected and strengthens sleeve, interior storehouse includes the closing in section and the open section that are connected with sleeve is strengthened, one end of tension rod is located in the open section in interior storehouse, the other end of tension rod passes through the closing in section for strengthening sleeve, and pass through tightening nut and be connected with anchoring base, there are radial clearances between the other end of tension rod and the closing in section for strengthening sleeve, steel strand wires are provided in the open section in interior storehouse, there are radial clearances between steel strand wires and the closing in section in interior storehouse.There are gap and tension rod in the present invention between steel strand wires and the closing in section and open section in interior storehouse and strengthen having gap between the closing in section of sleeve and open section, realize the technical purpose that torque is fully converted into axle power, be not in the loss of torque and axle power, so as to fulfill accurate control prestressed stretch-draw.
Description
Technical field
The present invention relates to technical field of civil engineering, a kind of tensioning equipment more particularly to accurate control prestress value and
Its method for stretching.
Background technology
To meet requirement for bearing capacity or improving structure military service performance, large-span steel-reinforced concrete structure construction generally can all be adopted
With prestressing force scheme.And the structure for being on active service, when needing reinforcement there are Lack of support, external prestressing strengthening skill
Art is also one of most effective means of structural strengthening, is widely used in old bridge reinforcement.To sum up, prestressing force is in modern project knot
It has been widely used or even can not avoid in structure.
But due to tensioning equipment and anchorage etc., steel strand wires are when less than normal or super there is prestress value always in tensioning
The situation of tensioning, after tensioning as various losss of prestress and cause prestress value gradually less than normal, cause design value with
There are relatively large deviations for actual conditions, and particularly during engineering structure normal use, conference is crossed in loss of prestress leads to pre- answer
Power effect has not just existed.Therefore, it is possible to accurately control prestressing force pull-up values, and tension operation is convenient to prestress engineering
Using important in inhibiting.
Invention content
The technical problems to be solved by the invention are for the above-mentioned state of the art, provide a kind of accurate control prestress value
Tensioning equipment and its method for stretching so that building structure can compensate prestress loss value in time during service.
To achieve the above object, the present invention provides following schemes：The present invention provides a kind of accurate control prestress value
Tensioning equipment, including steel strand wires connections storehouse, tension rod and anchoring base, the steel strand wires connections storehouse include the interior storehouse that is connected and
Strengthen sleeve, the interior storehouse and the reinforcement sleeve are hollow structure, the interior storehouse and the hollow structure for strengthening sleeve
Include the closing in section and the open section that are connected, the internal diameter of the closing in section is less than the internal diameter of the open section, the reinforcing sleeve
The open section and the open section in the interior storehouse of cylinder are positioned opposite, and one end of the tension rod is enlarged-diameter end, and the diameter expands
Big end is located in the open section for strengthening sleeve, and the diameter at the enlarged-diameter end is more than in the closing in section for strengthening sleeve
Diameter, the diameter at the enlarged-diameter end are less than the open section internal diameter for strengthening sleeve, and the other end of the tension rod passes through institute
The closing in section for strengthening sleeve is stated, and passes through tightening nut and is connected with the anchoring base, the other end of the tension rod and institute
It states between the closing in section for strengthening sleeve there are radial clearance, the upset end of steel strand wires, institute is provided in the open section in the interior storehouse
The diameter for stating the upset end of steel strand wires is more than the closing in section diameter in the interior storehouse, and the diameter of the upset end of the steel strand wires is less than institute
The open section diameter in interior storehouse is stated, the non-upset end of the steel strand wires passes through the closing in section in the interior storehouse, the non-upsetting of the steel strand wires
There are radial clearances between the closing in section in butt end and the interior storehouse.
Preferably, the interior storehouse is external screw thread steel pipe, and the sleeve of strengthening is inner thread steel pipe, the open section in the interior storehouse
Connection mode between the open section for strengthening sleeve is is threadedly coupled.
Preferably, the closing in section for strengthening sleeve is stepped hole, is connected between the stepped hole for rounding off, described
The closing in section in interior storehouse is connected with the junction of open section for rounding off.
Preferably, it is provided with a longitudinal opening on the side wall of the open section in the interior storehouse.
Preferably, the anchoring base is equipped with the through hole to match with the other end diameter of the tension rod, described
The other end of tension rod passes through the through hole, and passes through tightening nut and be connected with the anchoring base.
The present invention also provides a kind of method for stretching of accurate control prestress value, include the following steps：
By the tensioning end jumping-up of steel strand wires, the spherical upset end that diameter is more than steel strand wires diameter is formed；
The upset end of steel strand wires is placed in the inside in interior storehouse by the longitudinal opening of interior storehouse side wall；
The non-diameter bellend of tension rod is entered, and worn from the closing in section for strengthening sleeve from the open section for strengthening sleeve
Go out, the enlarged-diameter end of the tension rod is placed in the inside for strengthening sleeve, and the reinforcement sleeve is tightened company with the interior storehouse
It connects；
After the non-diameter bellend of the tension rod to be passed through to the through hole on anchoring base, it is fixed on by tightening nut
On the anchoring base, and the anchoring base is fixed with main structure body；The tension rod is tightened by torque wrench, so as to
Tensioning is carried out to steel strand wires.
The present invention achieves following advantageous effect relative to the prior art：
1st, steel strand wires and the closing in section and opening in interior storehouse in the tensioning equipment of accurate control prestress value provided by the invention
There is gap between section so that steel strand wires can be freely rotated during tension, avoided steel strand wires and born larger torsion
The problem of power, meanwhile, there is gap between the closing in section and open section of tension rod and reinforcement sleeve so that steel strand wires are being pulled through
When torsion is generated in journey, interior storehouse can rotate with respect to tension rod with strengthening sleeve, further avoid steel strand wires bear it is larger
The problem of torsion, it is achieved thereby that torque is fully converted into the technical purpose of axle power, be not in the loss of torque and axle power；Together
When, by the correspondence between torque and pretightning force, carry out accurate tension steel strand.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the overall structure diagram of the tensioning equipment of the accurate control prestress value of the present invention；
Fig. 2 is the structure diagram of steel strand wires connections storehouse；
Fig. 3 is the structure diagram of tension rod；
Fig. 4 is the structure diagram of anchoring base；
Wherein, 1 strengthens sleeve, storehouse, 3 tension rods, 4 anchoring bases, 5 closing in sections, 6 open sections, 7 enlarged-diameter ends, 8 in 2
Upset end, 9 through holes, 10 tightening nuts, 11 steel strand wires, 12 longitudinal openings.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
The technical problems to be solved by the invention are for the above-mentioned state of the art, provide a kind of accurate control prestress value
Tensioning equipment and its method for stretching so that building structure can compensate prestress loss value in time during service.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figs 1-4, the present invention provides a kind of tensioning equipment of accurate control prestress value, is connected including steel strand wires
Storehouse, tension rod 3 and anchoring base 4, steel strand wires connections storehouse include the interior storehouse 2 being connected and strengthen sleeve 1, interior storehouse 2 and reinforcing sleeve
Cylinder 1 is hollow structure, and interior storehouse 2 includes the closing in section 5 and the open section 6 that are connected with the hollow structure for strengthening sleeve 1, closes up
The internal diameter of section 5 is less than the internal diameter of open section 6, and open section 6 and the open section 6 in interior storehouse 2 for strengthening sleeve 1 are positioned opposite, tension rod 3
One end for enlarged-diameter end 7, enlarged-diameter end 7 is located in the open section 6 for strengthening sleeve 1, and the diameter at enlarged-diameter end 7 is more than
Strengthen 5 internal diameter of closing in section of sleeve 1, the diameter at enlarged-diameter end 7 is less than 6 internal diameter of open section for strengthening sleeve 1, tension rod 3
The other end passes through the closing in section 5 for strengthening sleeve 1, and passes through tightening nut 10 and is connected with anchoring base 4, tension rod 3 it is another
Hold strengthen sleeve 1 closing in section 5 between there are radial clearance, the upset end of steel strand wires 11 is provided in the open section 6 in interior storehouse 2
8, the diameter of the upset end 8 of steel strand wires 11 is more than 5 diameter of closing in section in interior storehouse 2, and the diameter of the upset end 8 of steel strand wires 11 is less than interior
6 diameter of open section in storehouse 2, the non-upset ends 8 of steel strand wires 11 pass through the closing in section 5 in interior storehouse 2, the non-upset end 8 of steel strand wires 11 with
There are radial clearances between the closing in section 5 in interior storehouse 2.
Wherein, at work, the upset end 8 of steel strand wires 11 is placed on the open section 6 in interior storehouse 2 to tensioning equipment by operating personnel
It is interior, the open section 6 in interior storehouse 2 with strengthening the open section 6 of sleeve 1 is connected, degree is screwed by adjust tightening nut 10, makes
Obtaining tension rod 3 is supplied to 11 stretching force of steel strand wires accurately to be controlled, due to steel strand wires 11 and the closing in section 5 and opening in interior storehouse 2
Section 6 between have gap so that steel strand wires 11 can be freely rotated during tension, avoid steel strand wires 11 bear compared with
The problem of big torsion, meanwhile, there is gap between tension rod 3 and the reinforcement closing in section 5 of sleeve 1 and open section 6 so that steel strand wires
11 when generating torsion during tension, strengthen sleeve 1 and can rotate with interior storehouse 2 with respect to tension rod 3, further avoid steel
The problem of twisted wire 11 bears larger torsion, it is achieved thereby that torque is fully converted into the technical purpose of axle power, be not in torque
With the loss of axle power；Wherein, be precisely controlled is that steel is twisted by torque value in Digital Electronic Torque Wrench and the correspondence of pretightning force
Line 11 is precisely loaded.It should be noted that：It is in the prior art to pull adjustment torque value with pretightning force by Digital-display torque
The codes and standards of acquiescence.
In the present invention strengthen sleeve 1 be external screw thread steel pipe, interior storehouse 2 be inner thread steel pipe, strengthen sleeve 1 open section 6 with
Connection mode between the open section 6 in interior storehouse 2 is is threadedly coupled.
The enlarged-diameter end 7 of tension rod 3 and the upset end 8 of steel strand wires 11 are spherical in the present invention；I.e. tension rod 3 is straight
The upset end 8 of diameter bellend 7 and steel strand wires 11 forms flexural pivot form component with strengthening sleeve 1 and interior storehouse 2 respectively, avoids stress collection
In, convenient for 3 adjustment direction of steel strand wires 11 and tension rod, further realize and be precisely controlled.
The closing in section 5 for strengthening sleeve 1 in the present invention is stepped hole, is connected between stepped hole for rounding off, the receipts in interior storehouse 2
Mouth section 5 is connected with the junction of open section 6 for rounding off.
It is put into inside interior storehouse 2 for the ease of steel strand wires 11, one is provided on the side wall of the open section 6 in interior storehouse 2 in the present invention
Longitudinal opening 12.
Anchoring base 4 is equipped with the through hole 9 to match with the other end diameter of tension rod 3 in the present invention, tension rod 3
The other end passes through through hole 9, and passes through tightening nut 10 and be connected with anchoring base 4.
A kind of method for stretching of accurate control prestress value in the present invention is also provided, is included the following steps：
By the tensioning end jumping-up of steel strand wires 11, the spherical upset end 8 that diameter is more than 11 diameter of steel strand wires is formed；
The upset end 8 of steel strand wires 11 is placed in the inside in interior storehouse 2 by the longitudinal opening 12 of interior 2 side wall of storehouse；
By the non-diameter bellend 7 of tension rod 3 from strengthen sleeve 1 open section 6 enter, and from strengthen sleeve 1 closing in
Section 5 is pierced by, and the enlarged-diameter end 7 of tension rod 3 is placed in the inside for strengthening sleeve 1, and reinforcement sleeve 1 with interior storehouse 2 is tightened and is connect；
After the non-diameter bellend 7 of tension rod 3 to be passed through to the through hole 9 on anchoring base 4, fixed by tightening nut 10
It is fixed on anchoring base 4, and by anchoring base 4 with main structure body；Tension rod 3 is tightened by torque wrench, so as to be twisted to steel
Line 11 carries out tensioning.
Specific case is applied in the present invention to be expounded the principle of the present invention and embodiment, above example
Illustrate to be merely used to help understand method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, in specific embodiments and applications there will be changes.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (7)
1. a kind of tensioning equipment of accurate control prestress value, which is characterized in that including steel strand wires connections storehouse, tension rod and anchoring
Pedestal, the steel strand wires connections storehouse includes the interior storehouse being connected and reinforcement sleeve, during the interior storehouse and the reinforcement sleeve are
Hollow structure, the interior storehouse include the closing in section and the open section that are connected, the closing in the hollow structure for strengthening sleeve
The internal diameter of section is less than the internal diameter of the open section, and the open section for strengthening sleeve and the open section in the interior storehouse are positioned opposite,
One end of the tension rod is enlarged-diameter end, and the enlarged-diameter end is located in the open section for strengthening sleeve, described straight
The diameter of diameter bellend is more than the closing in section internal diameter for strengthening sleeve, and the diameter at the enlarged-diameter end is less than the reinforcing sleeve
The open section internal diameter of cylinder, the other end of the tension rod passes through the closing in section of the reinforcement sleeve, and passes through tightening nut and institute
It states anchoring base to be connected, there are radial clearance, institutes between the other end of the tension rod and the closing in section for strengthening sleeve
The upset end that steel strand wires are provided in the open section in interior storehouse is stated, the diameter of the upset end of the steel strand wires is more than the receipts in the interior storehouse
Mouth section diameter, the diameter of the upset end of the steel strand wires are less than the open section diameter in the interior storehouse, the non-jumping-up of the steel strand wires
The closing in section across the interior storehouse is held, there are between radial direction between the non-upset end of the steel strand wires and the closing in section in the interior storehouse
Gap.
2. the tensioning equipment of accurate control prestress value according to claim 1, which is characterized in that the interior storehouse is outer spiral shell
Line steel pipe, the reinforcement sleeve is inner thread steel pipe, between the open section in the interior storehouse and the open section for strengthening sleeve
Connection mode is is threadedly coupled.
3. it is according to claim 1 it is accurate control prestress value tensioning equipment, which is characterized in that the tension rod it is straight
The upset end of diameter bellend and the steel strand wires is spherical.
4. the tensioning equipment of accurate control prestress value according to claim 1, which is characterized in that the reinforcement sleeve
Closing in section is stepped hole, is connected between the stepped hole for rounding off, the closing in section in the interior storehouse and the junction of open section
It is connected for rounding off.
5. the tensioning equipment of accurate control prestress value according to claim 1, which is characterized in that the opening in the interior storehouse
A longitudinal opening is provided on the side wall of section.
6. the tensioning equipment of accurate control prestress value according to claim 1, which is characterized in that on the anchoring base
Equipped with the through hole that the other end diameter with the tension rod matches, the other end of the tension rod passes through the through hole,
And pass through tightening nut and be connected with the anchoring base.
7. a kind of method for stretching of accurate control prestress value, which is characterized in that include the following steps：
By the tensioning end jumping-up of steel strand wires, the spherical upset end that diameter is more than steel strand wires diameter is formed；
The upset end of steel strand wires is placed in the inside in interior storehouse by the longitudinal opening of interior storehouse side wall；
The non-diameter bellend of tension rod is entered, and be pierced by from the closing in section for strengthening sleeve, institute from the open section for strengthening sleeve
The enlarged-diameter end for stating tension rod is placed in the inside for strengthening sleeve, and the reinforcement sleeve with the interior storehouse is tightened and is connect；
After the non-diameter bellend of the tension rod to be passed through to the through hole on anchoring base, it is fixed on by tightening nut described
On anchoring base, and the anchoring base is fixed with main structure body；The tension rod is tightened by torque wrench, so as to steel
Twisted wire carries out tensioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810138046.8A CN108221716A (en) | 2018-02-10 | 2018-02-10 | A kind of tensioning equipment and its method for stretching of accurate control prestress value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810138046.8A CN108221716A (en) | 2018-02-10 | 2018-02-10 | A kind of tensioning equipment and its method for stretching of accurate control prestress value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108221716A true CN108221716A (en) | 2018-06-29 |
Family
ID=62661511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810138046.8A Pending CN108221716A (en) | 2018-02-10 | 2018-02-10 | A kind of tensioning equipment and its method for stretching of accurate control prestress value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108221716A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417027A (en) * | 1972-01-04 | 1975-12-10 | Soum R | Assemblies of prefabricated prestressed reinforced concrete elements |
| FR2668558A1 (en) * | 1990-10-29 | 1992-04-30 | Arteon Marcel | Connection device for joining two bars end to end |
| JPH06123334A (en) * | 1992-10-08 | 1994-05-06 | Nippon Steel Corp | Mechanism and method for fixing steel bar in tension structure |
| JPH06123336A (en) * | 1992-10-08 | 1994-05-06 | Nippon Steel Corp | Mechanism and method for fixing steel bar in tension structure |
| DE29721146U1 (en) * | 1997-11-28 | 1999-04-01 | Max Bögl Bauunternehmung GmbH & Co KG, 92318 Neumarkt | Connector |
| CN1378625A (en) * | 1999-10-05 | 2002-11-06 | Vsl国际股份公司 | Connecting device |
| CN201343867Y (en) * | 2008-09-22 | 2009-11-11 | 中铁十一局集团第二工程有限公司 | Sleeve-type wire connector |
| CN101696591A (en) * | 2009-10-27 | 2010-04-21 | 哈尔滨工业大学 | Steel strand connector |
| CN103321431A (en) * | 2013-06-24 | 2013-09-25 | 中交四航工程研究院有限公司 | Rebar tensioner |
| CN105986548A (en) * | 2015-02-10 | 2016-10-05 | 杭州富锚机械有限公司 | Tensioning device and method of low-retraction anchor |
| CN106401075A (en) * | 2016-11-30 | 2017-02-15 | 长沙理工大学 | Prestressed tendon connecting and tensioning device and method |
| KR20170103284A (en) * | 2016-03-03 | 2017-09-13 | 주식회사 신성이엔씨 | Reinforced coupler |
| CN107461003A (en) * | 2017-07-24 | 2017-12-12 | 长沙远大住宅工业集团股份有限公司 | Universal steel concrete supporting component |
| CN208023421U (en) * | 2018-02-10 | 2018-10-30 | 深圳市市政设计研究院有限公司 | A kind of tensioning equipment accurately controlling prestress value |
-
2018
- 2018-02-10 CN CN201810138046.8A patent/CN108221716A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1417027A (en) * | 1972-01-04 | 1975-12-10 | Soum R | Assemblies of prefabricated prestressed reinforced concrete elements |
| FR2668558A1 (en) * | 1990-10-29 | 1992-04-30 | Arteon Marcel | Connection device for joining two bars end to end |
| JPH06123334A (en) * | 1992-10-08 | 1994-05-06 | Nippon Steel Corp | Mechanism and method for fixing steel bar in tension structure |
| JPH06123336A (en) * | 1992-10-08 | 1994-05-06 | Nippon Steel Corp | Mechanism and method for fixing steel bar in tension structure |
| DE29721146U1 (en) * | 1997-11-28 | 1999-04-01 | Max Bögl Bauunternehmung GmbH & Co KG, 92318 Neumarkt | Connector |
| CN1378625A (en) * | 1999-10-05 | 2002-11-06 | Vsl国际股份公司 | Connecting device |
| CN201343867Y (en) * | 2008-09-22 | 2009-11-11 | 中铁十一局集团第二工程有限公司 | Sleeve-type wire connector |
| CN101696591A (en) * | 2009-10-27 | 2010-04-21 | 哈尔滨工业大学 | Steel strand connector |
| CN103321431A (en) * | 2013-06-24 | 2013-09-25 | 中交四航工程研究院有限公司 | Rebar tensioner |
| CN105986548A (en) * | 2015-02-10 | 2016-10-05 | 杭州富锚机械有限公司 | Tensioning device and method of low-retraction anchor |
| KR20170103284A (en) * | 2016-03-03 | 2017-09-13 | 주식회사 신성이엔씨 | Reinforced coupler |
| CN106401075A (en) * | 2016-11-30 | 2017-02-15 | 长沙理工大学 | Prestressed tendon connecting and tensioning device and method |
| CN107461003A (en) * | 2017-07-24 | 2017-12-12 | 长沙远大住宅工业集团股份有限公司 | Universal steel concrete supporting component |
| CN208023421U (en) * | 2018-02-10 | 2018-10-30 | 深圳市市政设计研究院有限公司 | A kind of tensioning equipment accurately controlling prestress value |
Non-Patent Citations (1)
| Title |
|---|
| 阎西康: "《建筑施工技术与组织》", vol. 2011, 武汉理工大学出版社, pages: 204 - 207 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Alias et al. | Structural performance of grouted sleeve connectors with and without transverse reinforcement for precast concrete structure | |
| CN106499125A (en) | A kind of mechanical connecting device and connecting method for reinforcing bars for the construction of reinforcing bar componentization | |
| CN104963461A (en) | Connection method of steel bars between prefabricated parts by adopting steel fiber mortar grouting sleeve | |
| CN107313557A (en) | Universal steel concrete supporting component | |
| CN105464290A (en) | Novel steel bar connection sleeve | |
| CN103469967B (en) | Steel bar connecting sleeve of fabricated constructional member of reinforced concrete member | |
| CN208023421U (en) | A kind of tensioning equipment accurately controlling prestress value | |
| CN206495423U (en) | Line bar connector | |
| CN105064615B (en) | A kind of steel bar anchoring device and installation method | |
| CN108221716A (en) | A kind of tensioning equipment and its method for stretching of accurate control prestress value | |
| CN206545328U (en) | It is a kind of to adjust the reinforced high-strength degree attachment means in end reinforced gap | |
| CN106639165A (en) | Butt muff | |
| CN207761302U (en) | One kind can be used in turn anchor pole tension tool | |
| CN108560834A (en) | Reinforcing steel bar connecting device | |
| CN106149575A (en) | Prestress rope tensioning system and method | |
| CN208329188U (en) | A kind of elimination construction error wall lacing wire component | |
| CN110616855A (en) | Steel bar mechanical connection structure and connection method for prefabricated concrete structure | |
| CN206052574U (en) | Prestress rope tensioning system | |
| CN108914781A (en) | A kind of connection construction technique for welding nail connector combination beam with assembled | |
| CN1198036C (en) | Method for mounting anchor tendon penetrated mechanically | |
| CN209653232U (en) | A kind of off-position of steel reinforcing bar connection structure | |
| CN110388003A (en) | A kind of new reinforcing steel bar connection component | |
| CN211172720U (en) | Mechanical connection structure of steel bars for prefabricated concrete structure | |
| CN204876349U (en) | Steel bar anchoring device | |
| CN205387787U (en) | Novel steel bar connection sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |