CN109610344A - Bridge rotation body support construction method of installation - Google Patents
Bridge rotation body support construction method of installation Download PDFInfo
- Publication number
- CN109610344A CN109610344A CN201811651236.6A CN201811651236A CN109610344A CN 109610344 A CN109610344 A CN 109610344A CN 201811651236 A CN201811651236 A CN 201811651236A CN 109610344 A CN109610344 A CN 109610344A
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- China
- Prior art keywords
- support
- rotation body
- body support
- pinner
- installation
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/08—Methods or apparatus specially adapted for erecting or assembling bridges by rotational movement of the bridge or bridge sections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to the installations of bridge rotation body support, specially bridge rotation body support construction method of installation.This method orients eight points of support profile " eight equal parts " using with total station, support position is controlled roughly by eight points, the center of support is found out again and is marked, total station complete monitoring, then finely tune to support center and center of rotation in error range.Then it is fixed temporarily support with angle steel, epoxy resin mortar anchors lower bolt, guarantees support located completion before being in the milk.After lower bolt solidification, then support filling epoxy resin mortar is sling, after guaranteeing that support is installed, bottom epoxy resin mortar is closely knit.
Description
Technical field
The present invention relates to the installations of bridge rotation body support, specially bridge rotation body support construction method of installation.
Background technique
Swivel applying method refers to bridge structure after design axis is pre-formed with external position progress, by power device
It is turned to design position, then carries out a kind of method for bridge construction of two sides closure segment construction, there is safe and reliable, expense
The advantages that low, short time limit, is suitable for the biggish single hole of across footpath or porous bridge construction, is particularly suitable for across existing railway, public affairs
The constructions such as iron grade separation, river, mountain valley and famous scenic spot, nature reserve area are restricted the bridge construction in location.
Rotation body support is the swing system core of rotator construction, is the key structure of rotator construction, production and installation accuracy
It is required that very high, it is necessary to elaborate, install meticulously.Bridge rotation body support be placed in swivel lower wall pinner on, mainly by upper bolt,
Upper spherical pendulum, upper bolt, pin shaft, pin hole, lower bolt, lower spherical pendulum, lower bolt are constituted, and main performance index is that can be realized stabilization
Horizontally rotate and propose bridge rotation body support peace for bridge rotation body support installation with controllable vertical rotating limit, the present invention
Fill construction method.
Summary of the invention
The present invention provides bridge rotation body support construction methods of installation, to the critical process and essence of bridge rotation body support installation
Accuracy control is expounded.
The present invention adopts the following technical scheme that realization: bridge rotation body support construction method of installation, including following step
It is rapid:
The processing of pinner top surface dabbing: by the processing of pinner top surface dabbing, clearing up support lower bolt anchor hole, and cleaned out with water,
Guarantee working face cleaning；
Surveying and locating: (1) solution formulation: rotation body support installation is positioned using fixed control point, and control point is set to anti-
In the crown beam on fender pile top, it is ensured that mark stability, securely, installation overall process is controlled using the same control point, and when construction makes
Plane and high process control are carried out with total station and precision level；(2) support marks: being carried out using steel ruler and engineering line to support
Mark divides, and perimeter eight equal parts is carried out using rotation body support known radius, then cross hairs is drawn to determine seat structure center, with label
Pen clearly marks eight equal parts point and support central point；(3) coarse localization: using total station using " coordinate method " to rotation body support into
Row positioning, and using eight points of known coordinate setting-out " eight equal parts " on pinner, support outer profile is oriented after carrying out mark
Edge controls rotation body support position by eight points, will be in rotation body support integral hoisting to pinner with crane；(4) precise positioning:
Using total station setting-out center position, measurement and the support centre distance identified before, and carry out support plan-position
Accurate adjustment is secured in position after recycling precision level to carry out absolute altitude fine tuning until the center of rotation of setting-out is overlapped with support center,
Guarantee misalignment of axe and height variation within allowed band.
Leveling: any point height in rotation body support top surface is measured using precision level, and carries out flatness of support fine tuning, directly
Be not more than 1mm to any two points relative relief, then substitute and carry out elevation repetition measurement, until reach design requirement, then with angle steel or
Sheet metal is fixed temporarily rotation body support；
Fixed lower anchor bolt: lower bolt is anchored with grouting material, after lower bolt sufficiently anchors, angle steel is removed, unscrews bolt, again will
Rotation body support is sling, rotation body support and lower bolt separation；
Rotation body support installation: (1) calculating epoxy resin mortar dosage, guarantees that epoxy resin mortar is sufficient, can fill up swivel branch
Space is clogged in seat bottom in advance, to avoid secondary feed supplement；(2) epoxy resin mortar is smeared into ellipsoid in pinner end face center position
Shape, in pinner top surface along rotation body support outer profile surrounding formwork erection, template surrounds cylindrical shape, and diameter is 150- bigger than rotation body support outer diameter
250mm can directly observe rotation body support bottom pulp situation；Each template bottom sets one layer of rubber Leakproof strip, passes through expansion
Bolt is fixed on pinner top surface, spillage when preventing from being in the milk；(3) rotation body support is hung on pinner with crane, is self-possessed using support
It is compacted ellipsoid epoxy resin mortar, it is ensured that rest base installation is closely knit；(4) bolt, anchorage bearing are tightened；(5) repetition measurement turns
Support center and elevation, meet design requirement.
This method orients eight points of support profile " eight equal parts " using with total station, is controlled roughly by eight points
Support position, then find out the center of support and mark, total station complete monitoring, then finely tune to support center and rotation
Center is in error range.Then it is fixed temporarily support with angle steel, epoxy resin mortar anchors lower bolt, guarantees support before being in the milk
Located completion.After lower bolt solidification, then sling support filling epoxy resin mortar, after guaranteeing that support is installed, bottom
Portion's epoxy resin mortar is closely knit.
Construction method of the present invention has the advantage that
It installs easy to operate: for the bridge pad, support lifting being carried out using 100t truck crane, by consolidating to lower bolt
It is fixed, the disposable fixation completed to support.Special installation is not necessarily in construction, investment is small, and construction technology difficulty is low, operability
By force, it easily promotes.
Work efficiency is high: in rotation body support installation process, being carried out using 8 points of support circumferential outer edge and support center
Dual control positioning, substantially reduces the time of support positioning.
Installation accuracy requires high: rotation body support installation uses the same control using fixed control point, installation overall process
Point is controlled.Service performance and the excellent measuring instrument of precision carry out plane and high process control when construction.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Bridge rotation body support construction method of installation, comprising the following steps:
The processing of pinner top surface dabbing: by the processing of pinner top surface dabbing, clearing up support lower bolt anchor hole, and cleaned out with water,
Guarantee working face cleaning.
Surveying and locating: (1) solution formulation: rotation body support installation uses same using fixed control point, installation overall process
A control point is controlled.Service performance and the excellent measuring instrument of precision carry out plane and high process control when construction.Plane control is adopted
With 1 Lycra T09Plus total station, 1 Suo Jia SET230PK total station, the positioning accuracy of two total station central points reaches ±
Within 0.3mm；High process control uses DSZ2 precision automatic compensated level, precision 0.01mm.(2) support marks: using steel
Ruler and engineering line are identified division to support, carry out perimeter eight equal parts using rotation body support known radius, then draw cross hairs true
Determine seat structure center, understands label eight equal parts point and support central point with marker pen；(3) it coarse localization: is adopted using total station
Rotation body support is positioned with " coordinate method ", and using eight points of known coordinate setting-out " eight equal parts " on pinner, is carried out
Support outer profile edge is oriented after mark, controls rotation body support position by eight points, it is with 100t crane that rotation body support is whole
Body is lifted to pinner；(4) total station setting-out center position, measurement and the support identified before precise positioning: are utilized
Centre distance, and the accurate adjustment of support plan-position is carried out, until the center of rotation of setting-out is overlapped with support center, recycle accurate water
Quasi- instrument is secured in position after carrying out absolute altitude fine tuning, guarantees misalignment of axe and height variation within allowed band.
Leveling: make rotation body support top surface any two points relative relief no more than 1mm, then repetition measurement elevation using level, such as
This until reaching design requirement, is then fixed temporarily rotation body support with angle steel repeatedly.
Fixed lower anchor bolt: rotation body support has been completed in place at this time, in order to be permanently fixed rotation body support, is needed with grouting
Expect that (epoxy resin mortar) anchors lower bolt, after lower bolt sufficiently anchors, remove angle steel, unscrew bolt, again by swivel branch
Seat is sling.
Rotation body support installation: (1) calculating epoxy resin mortar dosage, guarantees that epoxy resin mortar is sufficient；(2) on pinner top
Epoxy resin mortar is smeared into ellipsoid by face center, and in pinner top surface along rotation body support outer profile surrounding formwork erection, template is enclosed
200mm bigger than rotation body support outer diameter at cylinder diameter, each template bottom sets one layer of 4mm thickness rubber Leakproof strip, passes through expansion bolt
It is fixed on pinner top surface, spillage when preventing from being in the milk；(3) rotation body support is hung on pinner with crane, it is ellipse with support self weight compacting
Spherical epoxy resin mortar, it is ensured that rest base installation is closely knit.Inspection method is to tap support top surface with iron hammer, is stung as issued
Sound then shows to be in the milk closely knit；(4) bolt, anchorage bearing are tightened rapidly；(5) repetition measurement rotation body support center and elevation meet design
It is required that.
Above method construction point:
1. reserving support lower bolt anchor hole on pinner.
2. " ten " wordline is portrayed in heart top surface in the holder, according to support radius on pinner, 8 " ten " wordline are portrayed
(i.e. 8 points) orient support outer profile edge.
3. anchoring lower bolt with grouting material.Support is fixed mainly by lower bolt, it is necessary to ensure that lower bolt anchoring is stablized, wait fill
After slurry reaches intensity requirement, angle steel can be removed, bolt is unscrewed, again slings support.
4. being filled between support and pinner with epoxy resin mortar, it is self-possessed using support and is compacted, it is ensured that rest base asphalt mixtures modified by epoxy resin
Rouge mortar is closely knit.
Claims (1)
1. bridge rotation body support construction method of installation, it is characterised in that the following steps are included:
The processing of pinner top surface dabbing: by the processing of pinner top surface dabbing, clearing up support lower bolt anchor hole, and cleaned out with water,
Guarantee working face cleaning；
Surveying and locating: (1) solution formulation: rotation body support installation uses the same control using fixed control point, installation overall process
System point is controlled, and carries out plane and high process control using total station and precision level when construction；(2) support marks: using
Steel ruler and engineering line are identified division to support, carry out perimeter eight equal parts using rotation body support known radius, then draw cross hairs
It determines seat structure center, understands label eight equal parts point and support central point with marker pen；(3) coarse localization: total station is utilized
Rotation body support is positioned using " coordinate method ", and using eight points of known coordinate setting-out " eight equal parts " on pinner, is done
Support outer profile edge is oriented after good mark, controls rotation body support position by eight points, it is with crane that rotation body support is whole
On lifting to pinner；(4) precise positioning: utilizing total station setting-out center position, measurement in the support that is identified before
Heart distance, and the accurate adjustment of support plan-position is carried out, until the center of rotation of setting-out is overlapped with support center, recycle Levelling
Instrument is secured in position after carrying out absolute altitude fine tuning, guarantees misalignment of axe and height variation within allowed band;
Leveling: make rotation body support top surface any two points relative relief no more than 1mm, then repetition measurement elevation using precision level, directly
To design requirement is reached, rotation body support then is fixed temporarily with angle steel；
Fixed lower anchor bolt: lower bolt is anchored with grouting material, after lower bolt sufficiently anchors, angle steel is removed, unscrews bolt, again will
Rotation body support is sling, rotation body support and lower bolt separation；
Rotation body support installation: (1) calculating epoxy resin mortar dosage, guarantees that epoxy resin mortar is sufficient；(2) in pinner top surface
Epoxy resin mortar is smeared into ellipsoid by heart position, and in pinner top surface along rotation body support outer profile surrounding formwork erection, template surrounds cylinder
Diameter is 150-250mm bigger than rotation body support outer diameter, and each template bottom sets one layer of rubber Leakproof strip, is fixed on by expansion bolt
Pinner top surface, spillage when preventing from being in the milk；(3) rotation body support is hung on pinner with crane, is self-possessed with support and is compacted ellipsoid ring
Oxygen resin mortar, it is ensured that rest base installation is closely knit；(4) bolt, anchorage bearing are tightened；(5) repetition measurement rotation body support center and height
Journey meets design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651236.6A CN109610344A (en) | 2018-12-31 | 2018-12-31 | Bridge rotation body support construction method of installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651236.6A CN109610344A (en) | 2018-12-31 | 2018-12-31 | Bridge rotation body support construction method of installation |
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| CN109610344A true CN109610344A (en) | 2019-04-12 |
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| CN201811651236.6A Pending CN109610344A (en) | 2018-12-31 | 2018-12-31 | Bridge rotation body support construction method of installation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211106A (en) * | 2020-10-29 | 2021-01-12 | 中铁四局集团第一工程有限公司 | Method for installing prefabricated bent cap of viaduct |
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2018
- 2018-12-31 CN CN201811651236.6A patent/CN109610344A/en active Pending
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| CN102286926A (en) * | 2011-08-25 | 2011-12-21 | 重庆新科建设工程有限公司 | Mounting process of cast-in-place bridge pot rubber bearing |
| CN103205936A (en) * | 2013-04-12 | 2013-07-17 | 中铁三局集团有限公司 | Device and method for accurately positioning spherical hinge |
| KR200473622Y1 (en) * | 2013-08-28 | 2014-07-21 | 삼영엠텍(주) | Friction pendulum bearing with pressure plates |
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| CN112211106A (en) * | 2020-10-29 | 2021-01-12 | 中铁四局集团第一工程有限公司 | Method for installing prefabricated bent cap of viaduct |
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Application publication date: 20190412 |