CN209144662U - A kind of front fulcrum hangs the tensioning equipment of blue construction - Google Patents
A kind of front fulcrum hangs the tensioning equipment of blue construction Download PDFInfo
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- CN209144662U CN209144662U CN201821693394.3U CN201821693394U CN209144662U CN 209144662 U CN209144662 U CN 209144662U CN 201821693394 U CN201821693394 U CN 201821693394U CN 209144662 U CN209144662 U CN 209144662U
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- short rod
- tensioning mechanism
- connect
- attachment device
- tensioning
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- 238000010276 construction Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000005491 wire drawing Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 17
- 241000020091 Dicranocarpus parviflorus Species 0.000 claims 1
- 101001093690 Homo sapiens Protein pitchfork Proteins 0.000 claims 1
- 102100036065 Protein pitchfork Human genes 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A kind of front fulcrum hangs the tensioning equipment of blue construction, including conversion head, pull rod and is located at tensioning mechanism I and tensioning mechanism II, and the pull rod includes the flexible connecting device of short rod, long draw and the long and short pull rod of connection；Tensioning mechanism I includes big stretch-draw jack and support foot I, and tensioning mechanism II includes small stretch-draw jack and support foot II；Under tensile state, the upper end of short rod is connect by conversion head upper end with the steel for wire drawing on bridge floor, it is supported on beam-ends anchor plate by support foot, the big stretch-draw jack of tensioning mechanism I is mounted on short rod middle and lower part, it is locked by nut I, short rod lower end is connect with flexible connecting device upper end, and the upper end of long draw and the lower end of flexible connecting device connect, the lower end of long draw is connect by nut III with tensioning mechanism II, so that short rod and long draw are flexibly connected by flexible connecting device.The tensioning equipment is easy for construction, high-efficient, reduces construction cost, while improving the safety coefficient of pull rod.
Description
Technical field
The utility model relates to the tensioning dresses that a kind of tensioning rotary device of drag-line more particularly to a kind of front fulcrum hang blue construction
It sets.
Background technique
Currently there are the tensioning of tower end, beam-ends tensioning using the method that front fulcrum hangs integral tension in blue construction technology to cable-stayed bridge
And tower end and beam-ends cooperate three kinds of methods of tensioning.With the method for similar in this technology being beam-ends tensioning.Beam-ends tensioning is usually adopted
It is attached with the different pull rod of two segment length, mainly solves and difficult ask is removed from steel for wire drawing using single pull rod
Topic；Its shortcoming has: 1, the weight under removing when pull rod due to pull rod itself, needs to borrow when screwing the connecting cylinder between two pull rods
Help lifting equipment；2, first pull rod and steel for wire drawing must be connected on bridge floor when pull rod connects, are then then passed through Hanging Basket
Slot is anchored.A piece drag-line of every installation is caused in this way long draw need to be carried to bridge floor from bridge bottom surface install, due to
After steel for wire drawing connects upper connecting rod, length is longer and heavier-weight, relatively difficult and long draw the external screw thread of installation are easy to touch
Wound, causes construction efficiency low, at high cost；3, it is installed in advance due to pull rod and steel for wire drawing in bridge floor, then can only be in Hanging Basket
One jack is installed, which also needs to meet the requirement of system transform, therefore for the rigid of Hanging Basket and arm-rest frame after cambered surface
Degree and intensity requirement are higher, cause construction cost height；4, due between pull rod using rigid connection and pull rod it is longer, when pull rod with
The axial direction of drag-line can generate additional bending stress there are when drift angle, reduce the overall coefficient of pull rod.
Summary of the invention
The purpose of this utility model is that: the tensioning equipment and its method of a kind of blue construction of front fulcrum extension are provided, two drawings are made
Connection between bar, which only passes through, manually to be screwed or bolt pin joint can be realized and be removed and installed, while avoiding long draw repeatedly
Carrying make construction it is more convenient；This method is by being arranged a big stretch-draw jack in guy anchor solid point and setting after Hanging Basket cambered surface
Set a small stretch-draw jack, in this way can the structure to Hanging Basket and arm-rest frame further optimized, reduce construction cost, together
The safety coefficient of Shi Tigao pull rod.
The technical solution to solve the above problems is: a kind of front fulcrum hangs the tensioning equipment of blue construction, including tensioning mechanism, turns
Change head and pull rod, it is characterised in that: the tensioning mechanism includes superposed tensioning mechanism I and the tensioning mechanism positioned at lower part
II Liang Ge tensioning mechanism, the pull rod include short rod, long draw and the flexible connecting device for connecting short rod and long draw；
The tensioning mechanism I includes big stretch-draw jack and support foot I, and tensioning mechanism II includes small stretch-draw jack and support foot II；
When installation, the upper end of short rod is connect by conversion head upper end with the steel for wire drawing 1 on bridge floor, is supported by support foot
On beam-ends anchor plate, the big stretch-draw jack of tensioning mechanism I is mounted on short rod middle and lower part, is locked by nut I, short drawing
Bar lower end is connect with flexible connecting device upper end, and the upper end of long draw and the lower end of flexible connecting device connect, under long draw
End is connect by nut III with tensioning mechanism II, so that the short rod of tensioning equipment is soft by flexible connecting device with long draw
Property connection.
Its further technical solution is: the flexible connecting device is flexural pivot attachment device, the flexural pivot attachment device packet
Include sequentially connected attaching nut, spherical nut and connector sleeve；
When installation, short rod lower end is connect with the attaching nut of flexural pivot attachment device, and nut I is by steel for wire drawing and short rod
It is fixed on design position；
The connector sleeve and spherical nut of flexural pivot attachment device are connect with long draw upper end, and the lower end of long draw passes through nut III
It is connect with the tensioning mechanism II for being located at Hanging Basket lower part；
The attaching nut of flexural pivot attachment device connect with connector sleeve, so that the short rod of tensioning equipment be passed through with long draw
The flexible connection of flexural pivot attachment device.
Its further technical solution or: the flexible connecting device be fork ear pin joint attachment device, the fork ear pin joint
Attachment device includes otic placode, pin shaft and fork ear, when installation, otic placode/fork ear of short rod lower end and fork ear pin joint attachment device
Steel for wire drawing and short rod are fixed on design position by upper end connection, nut I；
Fork ear/otic placode lower end of fork ear pin joint attachment device is connect with long draw upper end, and the lower end of long draw passes through spiral shell
Mother III connect with the tensioning mechanism II for being located at Hanging Basket lower part；
Fork ear/otic placode upper end of fork ear pin joint attachment device is connect by pin shaft with otic placode/fork ear lower end, thus will
The short rod and long draw of tensioning equipment pass through fork ear pin joint attachment device flexible connection.
Due to taking above structure, the utility model its " tensioning equipment that a kind of front fulcrum hangs blue construction " has with following
Beneficial effect:
1, easy for construction, quick, construction efficiency is high, not high to equipment requirement, reduces construction cost:
1., the utility model its " tensioning equipment that a kind of front fulcrum hangs blue construction " pull rod is divided into long draw and short rod
Two parts, connection short rod 5 and long draw 7 are flexible connecting devices 6, pass through the connection between two pull rods only and manually screw
Connector sleeve or bolt between two pull rods insert, takes and can realize and remove and install, and short rod is shorter, and tensioning equipment top integrally weighs
Amount is lighter, reduces the demand to personnel and lifting equipment.
2. steel for wire drawing connects, length after connector and short rod is shorter and lighter in weight, installs relatively convenient, is not easy to touch
Hurt screw thread, construction efficiency is high.
3., system transform completed by the jack for being installed on anchor-hold, therefore rigidity to Hanging Basket and arm-rest frame and
Intensity requirement reduces, and reduces construction cost.
2, it is flexibly connected between pull rod by flexible connecting device 6, additional bending stress is not present, improves the peace of pull rod
Overall coefficient.
In conclusion utility model device and method are to from personnel demand, construction efficiency, construction cost, safety coefficient
Four aspects optimize, and reduce bridge construction cost greatly, good with prospect.
With reference to the accompanying drawings and examples to the skill of the utility model its " tensioning equipment that a kind of front fulcrum hangs blue construction "
Art feature is described further.
Detailed description of the invention
Fig. 1 is that a kind of front fulcrum of the utility model hangs the tensioning equipment structure of blue construction and installs and uses status diagram；
Fig. 2 is that a kind of front fulcrum that flexible connecting device described in embodiment one is flexural pivot attachment device hangs the tensioning of blue construction
Apparatus structure and install and use status diagram；
Fig. 3 is that flexible connecting device described in embodiment two is the blue construction of a kind of front fulcrum extension for pitching ear pin joint attachment device
Tensioning equipment structure and install and use status diagram；
Fig. 4 is the structural schematic diagram of one flexural pivot attachment device of embodiment；
Fig. 5 is another mounting means structural schematic diagram of the fork ear pin joint attachment device of embodiment two.
In Fig. 1-Fig. 5:
1- steel for wire drawing, 2- conversion head, 3- tensioning mechanism I, 31- support foot I, the big stretch-draw jack of 32-；
41- nut I, 42- nut II, 43- nut III；5- short rod；6- flexible connecting device,
61- flexural pivot attachment device, 611- attaching nut, 612- spherical nut, 613- connector sleeve；
62- pitches ear pin joint attachment device, 621- otic placode, 622- pin shaft, 623- fork ear；
7- long draw, 8- tensioning mechanism II, 81- support foot II, the small stretch-draw jack of 82-, 9- suspension cable, 10- Hanging Basket；
A- beam section to be poured, B- have poured beam section.
Specific embodiment
A kind of front fulcrum hangs the tensioning equipment of blue construction:
As shown in Figure 1, the tensioning equipment that the front fulcrum hangs blue construction includes tensioning mechanism, conversion head and pull rod, described
Drawing mechanism includes superposed tensioning mechanism I 3 and the II 8 Liang Ge tensioning mechanism, tensioning mechanism positioned at lower part, the pull rod packet
Include the flexible connecting device 6 of short rod 5, long draw 7 and connection short rod 5, long draw 7；
When installation, the upper end of short rod 5 is connect by 2 upper end of conversion head with the steel for wire drawing 1 on bridge floor, passes through support foot branch
On beam-ends anchor plate, the big stretch-draw jack 32 of tensioning mechanism I 3 is mounted on 5 middle and lower part of short rod for support, is locked by nut I 41
Tightly, 5 lower end of short rod is connect with 6 upper end of flexible connecting device, and the upper end of long draw 7 is connect with the lower end of flexible connecting device 6,
The lower end of long draw 7 is connect by nut III 43 with tensioning mechanism II 8, so that the short rod 5 of tensioning equipment be led to long draw 7
Cross the flexible connection of flexible connecting device 6.
It is different according to the structure of flexible connecting device 6, there are following two different embodiments；
Embodiment one
Flexible connecting device is the tensioning equipment that a kind of front fulcrum of flexural pivot attachment device hangs blue construction:
As shown in Figure 2, Figure 4 shows, the attachment device which hangs the tensioning equipment of blue construction is flexural pivot attachment device 61, should
Flexural pivot attachment device includes sequentially connected attaching nut 611, spherical nut 612 and connector sleeve 613；
When installation, the upper end of short rod 5 is connect by 2 upper end of conversion head with the steel for wire drawing 1 on bridge floor, passes through support foot branch
On beam-ends anchor plate, the big stretch-draw jack 32 of tensioning mechanism I 3 is mounted on 5 middle and lower part of short rod for support, is locked by nut I 41
Tightly, 5 lower end of short rod is connect with the attaching nut 611 of flexural pivot attachment device 61, and nut I 41 fixes steel for wire drawing and short rod
In design position；Steel for wire drawing 1 and short rod 5 are fixed on design position；
The connector sleeve 613 and spherical nut 612 of flexural pivot attachment device 61 are connect with 7 upper end of long draw, the lower end of long draw 7
It is connect by nut III 43 with the tensioning mechanism II 8 for being located at 10 lower part of Hanging Basket；
The attaching nut 611 of flexural pivot attachment device 61 connect with connector sleeve 613, thus by the short rod 5 of tensioning equipment with
Long draw 7 is flexibly connected by flexural pivot attachment device 61.
The method that the tensioning equipment that a kind of front fulcrum that the flexural pivot connects hangs blue construction is used for stretching construction includes following
Step:
A1, installation tensioning equipment top:
Conversion head, short rod and steel for wire drawing are connected on bridge floor, tensioning mechanism I 3 is installed after reeving, will be opened
The big stretch-draw jack 32 of drawing mechanism I 3 is mounted on 5 middle and lower part of short rod, and nut I 41 is screwed in short rod until locking stretching machine
Steel for wire drawing, short rod are fixed on design position by structure I 3, and the attaching nut 611 of flexural pivot attachment device 61 and short rod connect
It connects；
B1, installation tensioning equipment lower part:
Nut 42 is screwed in into the long draw threaded upper end end and by the spherical nut of flexural pivot attachment device 61 612 and connector sleeve
613 is good with long draw pre-connection, then penetrates long draw in the slot of Hanging Basket 10, in the lower end of Hanging Basket by the lower end of long draw 7
It is connect by nut 43 with tensioning mechanism II 8；
C1, partly linking into an integrated entity above and below by flexible connecting device 6:
The attaching nut 611 of flexural pivot attachment device 61 is screwed with connector sleeve 613, by the upper and lower of flexural pivot attachment device 61
Part links into an integrated entity, so that the short rod 5 of tensioning equipment is flexibly connected with long draw 7 by flexural pivot attachment device 61；
D1, first time tensioning:
Tensioning is carried out using the small stretch-draw jack 82 for the tensioning mechanism II 8 installed after Hanging Basket cambered surface；
E1, second of tensioning:
When carrying out system transform after the completion of to be cast, the big stretch-draw jack 32 of the tensioning mechanism I 3 at anchor-hold is utilized
Tensioning is carried out, screws the nut on steel for wire drawing finally to complete system transform；
When F1, construction disassembly,
F11: by partly dismantling above and below for flexural pivot attachment device 61；
Long draw is lifted in advance, unscrewed using the clearance space of attaching nut and spherical nut connector sleeve with connect spiral shell
Female connection:
F12: being screwed down the nut 42 of 7 threaded upper end of long draw until tensioning mechanism II 8 is locked, under tensioning equipment
Portion --- spherical nut 612 and connector sleeve 613, long draw 7, nut 42, nut 43, stretching machine including flexural pivot attachment device 61
Structure II 8 is not dismantled, and is stayed in Hanging Basket, and the casting for carrying out next beam sections is moved together with Hanging Basket；
F13: by the upper part of tensioning equipment --- it include: tensioning mechanism I 3, short rod, nut I 41, conversion head, flexural pivot
The attaching nut of attachment device 61 removes, for the connection of next drag-line.
Embodiment two
Flexible connecting device is the tensioning equipment for pitching a kind of blue construction of front fulcrum extension of ear pin joint attachment device:
As shown in Figure 1, Figure 3, it is fork ear pin joint attachment device which, which hangs the attachment device of the tensioning equipment of blue construction,
The fork ear pin joint attachment device 62 includes otic placode 621, pin shaft 622 and fork ear 623；
When installation, the upper end of short rod 5 is connect by 2 upper end of conversion head with the steel for wire drawing 1 on bridge floor, passes through support foot branch
On beam-ends anchor plate, the big stretch-draw jack 32 of tensioning mechanism I 3 is mounted on 5 middle and lower part of short rod for support, is locked by nut I 41
Tightly；5 lower end of short rod is connect with the upper end of the otic placode 621 of fork ear pin joint attachment device 62, and steel for wire drawing and short rod are fixed
In design position；
The lower end for pitching the fork ear 623 of ear pin joint attachment device 62 is connect with 7 upper end of long draw, and the lower end of long draw 7 passes through
Nut III 43 is connect with the tensioning mechanism II 8 for being located at Hanging Basket lower part；
The upper end for pitching the fork ear 623 of ear pin joint attachment device 62 is connect by pin shaft 622 with the lower end of otic placode 621, thus
The long draw 7 of tensioning equipment is flexibly connected with short rod 5 by pitching ear pin joint attachment device 62.
Flexible connecting device by the present embodiment two is for pitching a kind of blue construction of front fulcrum extension of ear pin joint attachment device
Method of the drawing device for stretching construction is identical with one step of embodiment, and the flexible connecting device structure only connected is different, also
The following steps are included:
A2a, installation tensioning equipment top:
B2a, installation tensioning equipment lower part:
C2a, partly linking into an integrated entity above and below for ear pin joint attachment device 62 will be pitched:
D2a, first time tensioning:
E2a, second of tensioning:
F2a, construction disassembly.
Since stretch-draw construction method is not belonging to utility model protection range, no longer elaborate herein.
As a kind of transformation of the utility model embodiment two, the connection of ear pin joint attachment device 62 and long and short pull rod is pitched
Mode can also exchange, i.e., as shown in figure 5, when installing, by the fork ear 623 of 5 lower end of short rod and fork ear pin joint attachment device 62
Upper end connection, steel for wire drawing and short rod are fixed on design position；
The lower end for pitching the otic placode 621 of ear pin joint attachment device 62 is connect with 7 upper end of long draw, and the lower end of long draw 7 passes through
Nut III 43 is connect with the tensioning mechanism II 8 for being located at Hanging Basket lower part；
The upper end for pitching the otic placode 621 of ear pin joint attachment device 62 is connect by pin shaft 622 with the lower end for pitching ear 623, thus
The long draw 7 of tensioning equipment is flexibly connected with short rod 5 by pitching ear pin joint attachment device 62.
It is essentially identical also as described above that it is used for construction method, and flexible connecting device is only pitched ear pin joint attachment device 62
Exchanged with the connection type of long and short pull rod, i.e., " A2a, installation tensioning equipment top, B2a, installation tensioning equipment lower part,
C2a, partly linking into an integrated entity above and below for ear pin joint attachment device 62 being pitched " 3 steps and F2a, construction demounting procedure make one
It is a little to change.
Claims (3)
1. a kind of front fulcrum hangs the tensioning equipment of blue construction, including tensioning mechanism, conversion head and pull rod, it is characterised in that: described
Tensioning mechanism includes superposed tensioning mechanism I (3) and tensioning mechanism II (8) Liang Ge tensioning mechanism positioned at lower part, described
Pull rod includes the flexible connecting device (6) of short rod (5), long draw (7) and connection short rod (5) and long draw (7), described
Tensioning mechanism I (3) includes big stretch-draw jack (32) and support foot I (31), and tensioning mechanism II (8) includes small stretch-draw jack (82)
With support foot II (81)；
When installation, the upper end of short rod (5) is connect by conversion head (2) upper end with the steel for wire drawing (1) on bridge floor, passes through support foot
It is supported on beam-ends anchor plate, the big stretch-draw jack (32) of tensioning mechanism I (3) is mounted on short rod (5) middle and lower part, passes through
Nut I (41) locking, short rod (5) lower end are connect with flexible connecting device (6) upper end, and the upper end of long draw (7) and flexibility are even
The lower end of connection device (6) connects, and the lower end of long draw (7) is connect by nut III (43) with tensioning mechanism II (8), to will open
The short rod (5) of drawing device and long draw (7) are flexibly connected by flexible connecting device (6).
2. the tensioning equipment that a kind of front fulcrum according to claim 1 hangs blue construction, it is characterised in that: the flexibility is even
Connection device (6) is flexural pivot attachment device (61), which includes sequentially connected attaching nut (611), spherical spiral shell
Female (612) and connector sleeve (613)；
When installation, short rod (5) lower end is connect with the attaching nut (611) of flexural pivot attachment device (61), and nut I (41) is by drag-line
Anchor head and short rod are fixed on design position；
The connector sleeve (613) and spherical nut (612) of flexural pivot attachment device (61) are connect with long draw (7) upper end, long draw (7)
Lower end connect by nut III (43) with positioned at the tensioning mechanism II (8) of Hanging Basket lower part；
The attaching nut (611) of flexural pivot attachment device (61) connect with connector sleeve (613), thus by the short rod of tensioning equipment
(5) it is flexibly connected with long draw (7) by flexural pivot attachment device (61).
3. the tensioning equipment that a kind of front fulcrum according to claim 1 hangs blue construction, it is characterised in that: the flexibility is even
Connection device (6) is fork ear pin joint attachment device (62), which includes otic placode (621), pin shaft (622)
With fork ear (623), when installation, otic placode (621)/fork ear (623) of short rod (5) lower end and fork ear pin joint attachment device (62)
Steel for wire drawing and short rod are fixed on design position by upper end connection, nut I (41)；
Fork ear (623)/otic placode (621) lower end of fork ear pin joint attachment device (62) is connect with long draw (7) upper end, long draw
(7) lower end is connect by nut III (43) with the tensioning mechanism II (8) for being located at Hanging Basket lower part；
Pitch fork ear (623)/otic placode (621) upper end of ear pin joint attachment device (62) by pin shaft (622) and otic placode (621)/
The lower end connection of ear (623) is pitched, so that the short rod (5) of tensioning equipment and long draw (7) are passed through fork ear pin joint attachment device
(62) it is flexibly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693394.3U CN209144662U (en) | 2018-10-18 | 2018-10-18 | A kind of front fulcrum hangs the tensioning equipment of blue construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693394.3U CN209144662U (en) | 2018-10-18 | 2018-10-18 | A kind of front fulcrum hangs the tensioning equipment of blue construction |
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| Publication Number | Publication Date |
|---|---|
| CN209144662U true CN209144662U (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821693394.3U Withdrawn - After Issue CN209144662U (en) | 2018-10-18 | 2018-10-18 | A kind of front fulcrum hangs the tensioning equipment of blue construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN209144662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295859A (en) * | 2018-10-18 | 2019-02-01 | 柳州欧维姆机械股份有限公司 | A kind of front fulcrum hangs the tensioning equipment and its stretch-draw construction method of blue construction |
-
2018
- 2018-10-18 CN CN201821693394.3U patent/CN209144662U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295859A (en) * | 2018-10-18 | 2019-02-01 | 柳州欧维姆机械股份有限公司 | A kind of front fulcrum hangs the tensioning equipment and its stretch-draw construction method of blue construction |
| CN109295859B (en) * | 2018-10-18 | 2023-12-19 | 柳州欧维姆机械股份有限公司 | Tensioning device for front supporting point hanging construction and tensioning construction method thereof |
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Granted publication date: 20190723 Effective date of abandoning: 20231219 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190723 Effective date of abandoning: 20231219 |