CN102535352A - Hinge for installing bridge cable tower and method for installing hinge - Google Patents
Hinge for installing bridge cable tower and method for installing hinge Download PDFInfo
- Publication number
- CN102535352A CN102535352A CN2012100067290A CN201210006729A CN102535352A CN 102535352 A CN102535352 A CN 102535352A CN 2012100067290 A CN2012100067290 A CN 2012100067290A CN 201210006729 A CN201210006729 A CN 201210006729A CN 102535352 A CN102535352 A CN 102535352A
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- free bearing
- hinge
- sarasota
- hinge seat
- dummy shaft
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Abstract
The invention discloses a hinge for installing a bridge cable tower and a method for installing the hinge. The hinge comprises a lower hinge seat, a hinge shaft and an upper hinge seat, wherein the upper hinge seat is connected with the lower hinge seat through the hinge shaft and can freely rotate relative to the lower hinge seat. The method comprises the following steps of: fixing the lower hinge seat; connecting the upper hinge seat and the lower hinge seat through a dummy shaft, and welding a cable tower ground first-section box body; and replacing the dummy shaft with the hinge shaft. The cable tower hinge is used for the whole vertical rotation of the cable tower, the lower hinge seat of the hinge is fixed on a lower hinge seat anchor plate, and the lower hinge seat anchor plate is welded and fixed with a steel tower basic section embedded into a concrete tower foundation; and the hinge shaft is manufactured by processing 40Cr steel and hardening and tempering, and lug plates of the upper hinge seat and the lower hinge seat are made of Q345B steel plates and are subjected to non-destructive flaw detection after being manufactured, so that the hinge shaft is safely stressed and reliably used in the whole vertical rotation process of the cable tower, guarantee is provided for the whole vertical rotation of the cable tower, the cable tower is installed in a time-saving and labor-saving mode, and installation accuracy is high.
Description
Technical field
The present invention relates to equipment and the mounting method thereof of a kind of bridge with the whole vertical transfer of Sarasota, especially a kind of bridge Sarasota is installed with heavy hinge and mounting method thereof.
Background technology
Now, in the bridge engineering, Longspan Bridge adopts drag-line bridge or suspension bridge more, and for attractive in appearance; Causing with setting angle of Sarasota is also of all kinds, and this has proposed requirement with regard to setting up for the installation of Sarasota, adopts mostly and sets up full framing or add dorsal funciculus hanging method piecemeal; Doing promptly like this wastes time and energy, and needs the ultra-large type lifting appliance, simultaneously; The work high above the ground that has increased the workman is dangerous, and, the control of integral solder difficult quality; Assembly precision is difficult for controlling, and especially when Sarasota had certain mounted angle, difficulty of construction was bigger.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of Sarasota ground assembling of being used for, hinge supporting capacity >=3000 ton, and the heavy hinge and the mounting method thereof of whole vertical transfer, it is time saving and energy saving that Sarasota is installed, and installation accuracy is high.
For addressing the above problem, the technical scheme that the present invention taked is: a kind of bridge Sarasota is installed and is used hinge, comprises free bearing, hinge and last free bearing down, and last free bearing is connected through hinge with following free bearing, and last free bearing descends free bearing freely to rotate relatively.
Said free bearing down is fixed on down on the free bearing anchor slab, and the bearing pin material adopts 40Cr steel processing back modifier treatment, and last free bearing connects Sarasota first section box body.
The said otic placode material of going up free bearing and following free bearing adopts the steel plate of Q345B material to process.
The said material of free bearing, hinge and last free bearing down all carries out ultrasonic testing/ ultrasonic examination and detects, and after completing, the processing that eliminates stress, the fineness of rotary part all reaches more than the Ra3.2 level.
A kind of bridge Sarasota is installed and is used the hinge mounting method, may further comprise the steps:
1. descend the installation of free bearing
The following free bearing of Sarasota hinge connects following following free bearing anchor slab, and connected mode adopts the welding of groove penetration weld, and following free bearing anchor slab welds together with the head tower section of foundation that is embedded in the concrete towers pier; The concentricity deviation of the following free bearing hinge axis hole that following free bearing installing and locating precision is two hinges satisfies the hinge installation requirement less than 2mm, guarantees carrying out smoothly of later stage Sarasota assembly unit and vertical transfer;
2. go up free bearing, the connection of free bearing down
Upper and lower free bearing is connected with dummy shaft; Dummy shaft external diameter and free bearing aperture minus tolerance are 0.5mm; Dummy shaft processes with thick-wall seamless, after dummy shaft penetrates upper and lower free bearing, must guarantee that free bearing can freely rotate; To go up free bearing then and go to itself and the Sarasota installation site of first section box body on the ground, it is fixing to go up the free bearing welding with support;
3. the installation of the first joint of Sarasota
Adjust Sarasota ground first section box body and be embedded in pre-buried section box side axis of concrete head tower and the dead in line of Sarasota installation in position, upper hinge and the welding of first section box body is fixing, then the epimere tower is saved the assembly unit state that goes to the center line level;
4. the replacing of dummy shaft
The Sarasota assembly unit ejects dummy shaft with hinge after accomplishing, and installs the stopping pin, and axial restraint.
The contact surface coating butter and the polytetrafluoroethylene powder of the 2. middle dummy shaft of above-mentioned steps or 4. middle hinge and upper and lower free bearing.
Above-mentioned steps goes up in 3. in the welding process of free bearing and first section box body and changes the timely welding sequence of adjusting when finding inhomogeneous deformation through the gap of clearance gauge inspection dummy shaft commonly used with axis hole.
The weld seam of all welding all is a first-order weld, and welding is accomplished after 48 hours and carried out weld seam 100% ultrasonic testing/ ultrasonic examination and 10% radiographic inspection.
Adopt the beneficial effect that technique scheme produced to be: heavy hinge of the present invention is used for the whole vertical transfer of Sarasota, and the following free bearing of hinge is fixed on down on the free bearing anchor slab, and following free bearing anchor slab is fixing with the head tower section of foundation welding that is embedded in the concrete column foot; Hinge adopts 40Cr steel processing back modifier treatment, and the otic placode material of last free bearing and following free bearing adopts the steel plate of Q345B material to process, and after completing; Detect a flaw; Guaranteed that the stressed safety of hinge is reliable with use in the whole vertical transfer process of Sarasota, for the whole vertical transfer of Sarasota provides guarantee; It is time saving and energy saving that Sarasota is installed, and installation accuracy is high.
Description of drawings
Fig. 1 is a Sarasota hinge master TV structure sketch map of the present invention;
Fig. 2 is that the A of Fig. 1 of the present invention is to structural representation;
Fig. 3 is that free bearing is connected the back structural representation under the present invention with following free bearing anchor slab;
Fig. 4 is that the B of Fig. 3 of the present invention is to structural representation;
Fig. 5 is a free bearing structural representation in the present invention;
Fig. 6 is that the C of Fig. 5 of the present invention is to structural representation;
Wherein: 1, following free bearing anchor slab, 2, free bearing down, 3, hinge, 4, go up free bearing, 5, otic placode, 6, otic placode.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail: be as illustrated in fig. 1 and 2; Bridge Sarasota of the present invention is installed and is used heavy hinge; Comprise following free bearing 2, hinge 3, go up free bearing 4 and following free bearing anchor slab 1, following free bearing is fixed on down on the free bearing anchor slab, and last free bearing is connected through hinge with following free bearing; Last free bearing descends free bearing freely to rotate relatively, and last free bearing connects Sarasota first section box body.Wherein pin diameter is Φ 400mm, adopts 40Cr steel processing back modifier treatment, and otic placode 5,6 materials adopt the steel plate of Q345B material to process, and thickness is 90mm.Wherein go up the free bearing structure with reference to figure 5 and Fig. 6, following free bearing and structure after following free bearing anchor slab is connected are with reference to figure 3 and Fig. 4
Following free bearing, hinge and the last free bearing material of forming hinge all carry out ultrasonic testing/ ultrasonic examination before use and detect, and after completing, processing eliminates stress.The fineness of the rotary part that hinge is connected with upper and lower free bearing all reaches more than the Ra3.2 level.And in order to reduce rotary resistance, during assembling, contact surface coating butter and polytetrafluoroethylene powder.
When using, hinge is the commentaries on classics hinge of Sarasota vertical transfer process, and after the Sarasota vertical transfer puts in place, hinge will bear and transmit whole load of Sarasota, and hinge uses in pairs, and the load during the Sarasota vertical transfer is shared by two hinges jointly.
The installation of hinge, carry out according to the following steps:
1. descend the installation of free bearing
The following free bearing of hinge is connected on the free bearing anchor slab, and connected mode adopts the welding of groove penetration weld, and following free bearing anchor slab is weldingly fixed on together with the head tower section of foundation that is embedded in the concrete towers pier; Following free bearing installing and locating precision is (concentricity deviation of the following free bearing hinge axis hole of two hinges is less than 2mm), satisfies the hinge installation requirement, guarantees carrying out smoothly of later stage Sarasota assembly unit and vertical transfer;
2. go up free bearing, the connection of free bearing down
Upper and lower free bearing is connected with dummy shaft, and dummy shaft external diameter and free bearing aperture minus tolerance are 0.5mm, the contact surface coating butter and the polytetrafluoroethylene powder of dummy shaft and upper and lower free bearing; Dummy shaft processes with thick-wall seamless, after dummy shaft penetrates upper and lower free bearing, must guarantee that free bearing can freely rotate, will go up the installation site that free bearing goes to itself and Sarasota first section box body then, will go up free bearing with support and weld and fix;
3. the installation of the first joint of Sarasota
After adjustment first section box body and pre-buried section box side axis in bottom and the dead in line of Sarasota installation site, upper hinge and upper box welding is fixing, then the epimere tower is saved the assembly unit state that goes to the center line level; Change through the gap of using clearance gauge inspection dummy shaft and axis hole always in the welding process of last free bearing and first section box body, when finding inhomogeneous deformation, in time adjust welding sequence;
4. the replacing of dummy shaft
After assembly unit Sarasota, Sarasota assembly unit are accomplished, dummy shaft is ejected with hinge, install and lock fixing, the contact surface coating butter and the polytetrafluoroethylene powder of hinge and upper and lower free bearing.。
The weld seam of all welding all is a first-order weld, and welding is accomplished after 48 hours and carried out weld seam 100% ultrasonic testing/ ultrasonic examination and 10% radiographic inspection.
Claims (8)
1. a bridge Sarasota is installed and used hinge, it is characterized in that: comprise free bearing, hinge and last free bearing down, last free bearing is connected through hinge with following free bearing, and last free bearing descends free bearing freely to rotate relatively.
2. bridge Sarasota according to claim 1 is installed and is used hinge, it is characterized in that said free bearing down is fixed on down on the free bearing anchor slab, and the bearing pin material adopts 40Cr steel processing back modifier treatment, and last free bearing connects Sarasota first section box body.
3. bridge Sarasota according to claim 1 is installed and is used hinge, it is characterized in that the said otic placode of going up free bearing and following free bearing adopts the steel plate of Q345B material to process.
4. bridge Sarasota according to claim 1 is installed and is used hinge; It is characterized in that the said material of free bearing, hinge and last free bearing down all carries out ultrasonic testing/ ultrasonic examination and detects; And after completing, the processing that eliminates stress, the fineness of rotary part all reaches more than the Ra3.2 level.
5. a bridge Sarasota is installed and is used the hinge mounting method, may further comprise the steps:
1. descend the installation of free bearing
The following free bearing of Sarasota hinge connects following following free bearing anchor slab, and connected mode adopts the welding of groove penetration weld, and following free bearing anchor slab welds together with the head tower section of foundation that is embedded in the concrete towers pier; The concentricity deviation of the following free bearing hinge axis hole that following free bearing installing and locating precision is two hinges satisfies the hinge installation requirement less than 2mm, guarantees carrying out smoothly of later stage Sarasota assembly unit and vertical transfer;
2. go up free bearing, the connection of free bearing down
Upper and lower free bearing is connected with dummy shaft; Dummy shaft external diameter and free bearing aperture minus tolerance are 0.5mm; Dummy shaft processes with thick-wall seamless, after dummy shaft penetrates upper and lower free bearing, must guarantee that free bearing can freely rotate; To go up free bearing then and go to itself and the Sarasota installation site of first section box body on the ground, it is fixing to go up the free bearing welding with support;
3. the installation of the first joint of Sarasota
Adjust Sarasota ground first section box body and be embedded in pre-buried section box side axis of concrete head tower and the dead in line of Sarasota installation in position, upper hinge and the welding of first section box body is fixing, then the epimere tower is saved the assembly unit state that goes to the center line level;
4. the replacing of dummy shaft
The Sarasota assembly unit ejects dummy shaft with hinge after accomplishing, and installs the stopping pin, and is axially also fixing.
6. bridge Sarasota according to claim 5 is installed and is used the hinge mounting method, it is characterized in that: the contact surface coating butter and the polytetrafluoroethylene powder of the 2. middle dummy shaft of step or 4. middle hinge and upper and lower free bearing.
7. bridge Sarasota according to claim 5 is installed and is used the hinge mounting method; It is characterized in that: step goes up in 3. in the welding process of free bearing and first section box body and changes the timely welding sequence of adjusting when finding inhomogeneous deformation through the gap of clearance gauge inspection dummy shaft commonly used with axis hole.
8. bridge Sarasota according to claim 5 is installed and is used the hinge mounting method, and it is characterized in that: the weld seam of all welding all is a first-order weld, and welding is accomplished after 48 hours and carried out weld seam 100% ultrasonic testing/ ultrasonic examination and 10% radiographic inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100067290A CN102535352A (en) | 2012-01-11 | 2012-01-11 | Hinge for installing bridge cable tower and method for installing hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100067290A CN102535352A (en) | 2012-01-11 | 2012-01-11 | Hinge for installing bridge cable tower and method for installing hinge |
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| CN102535352A true CN102535352A (en) | 2012-07-04 |
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| CN2012100067290A Pending CN102535352A (en) | 2012-01-11 | 2012-01-11 | Hinge for installing bridge cable tower and method for installing hinge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746433A (en) * | 2015-01-26 | 2015-07-01 | 中交第二航务工程局有限公司 | Rotating hinge positioning method |
| CN104963296A (en) * | 2015-06-26 | 2015-10-07 | 武船重型工程股份有限公司 | Overturning method of bridge segment |
| CN105464001A (en) * | 2015-11-05 | 2016-04-06 | 中铁十八局集团有限公司 | Construction method of backward vertical rotation of steel tower |
| CN106089093A (en) * | 2016-06-15 | 2016-11-09 | 中煤第三建设集团机电安装工程有限责任公司 | The installation method of steel structure derrick component |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9301102A (en) * | 1993-06-24 | 1995-01-16 | Seaway Heavy Lifting Engineeri | Method for installing a supporting mast on a platform |
| CN101122114A (en) * | 2007-09-14 | 2008-02-13 | 中铁大桥局集团第五工程有限公司 | Back-cable-free cable-stayed bridge steel tower vertical turn construction method |
| CN202401403U (en) * | 2012-01-11 | 2012-08-29 | 河北金环钢结构工程有限公司 | Heavy-type hinge for installing cable tower of cable bridge |
-
2012
- 2012-01-11 CN CN2012100067290A patent/CN102535352A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9301102A (en) * | 1993-06-24 | 1995-01-16 | Seaway Heavy Lifting Engineeri | Method for installing a supporting mast on a platform |
| CN101122114A (en) * | 2007-09-14 | 2008-02-13 | 中铁大桥局集团第五工程有限公司 | Back-cable-free cable-stayed bridge steel tower vertical turn construction method |
| CN202401403U (en) * | 2012-01-11 | 2012-08-29 | 河北金环钢结构工程有限公司 | Heavy-type hinge for installing cable tower of cable bridge |
Non-Patent Citations (1)
| Title |
|---|
| 张强: "整体竖转技术在斜拉索桥倾斜索塔施工中的应用", 《建筑技术》, vol. 39, no. 10, 8 December 2008 (2008-12-08), pages 795 - 802 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746433A (en) * | 2015-01-26 | 2015-07-01 | 中交第二航务工程局有限公司 | Rotating hinge positioning method |
| CN104963296A (en) * | 2015-06-26 | 2015-10-07 | 武船重型工程股份有限公司 | Overturning method of bridge segment |
| CN105464001A (en) * | 2015-11-05 | 2016-04-06 | 中铁十八局集团有限公司 | Construction method of backward vertical rotation of steel tower |
| CN106089093A (en) * | 2016-06-15 | 2016-11-09 | 中煤第三建设集团机电安装工程有限责任公司 | The installation method of steel structure derrick component |
| CN106089093B (en) * | 2016-06-15 | 2018-10-19 | 中煤第三建设集团机电安装工程有限责任公司 | The installation method of steel structure derrick component |
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Application publication date: 20120704 |