High-lift tooth climbs formula ship lift Nut column system construction method and installation accuracy control
Method
Technical field
The invention belongs to ship lift equipment installation Technology field, and in particular to a kind of high-lift tooth climbs formula ship lift spiral shell
It is whole after female column system construction method and installation accuracy control method, many Nut column formation nut column systems that are particularly suitable for use in
Installation accuracy control method in body installation method and installation process.
Background technology
Nut column climbs the crucial drive disk assembly of formula ship lift as tooth, and totally four sets of Nut column is arranged in four king-posts
In vertical walls in elevator well section groove, often cover Nut column and be made up of two separate cylinders, two symmetrical cloth of cylinder
Put, mounted in pairs.Often set Nut column group is by 1 group of nut column assembly(One), 6 groups of nut column assemblies(Two), 18 groups of nut column assemblies
(Three), 1 group of nut column assembly(Four), guide rail splice, Nut column dividing plate, the composition such as screw.
In above-mentioned Nut column system installation process is carried out, it should ensure that the installation accuracy between single set Nut column group refers to
Mark, ensures the installation accuracy index after many set Nut column group composition systems, and single-piece Nut column chi in Practical Project again
The prominent construction Difficulties such as very little big, weight is big, complex structure and setting height(from bottom) height, above-mentioned essence can not be met using conventional mounting arrangements
Degree is required, it is therefore desirable to propose new installation method and accuracy control method to overcome various difficult points, realizes smoothly opening for engineering
Exhibition.
To have opened a kind of gear nut post climbing type vertical ship lift Nut column efficient for work in publication number CN103696410A
Installation method, the method mainly describes the installation process and installation method of single Nut column, meets the peace of single Nut column
Fill precision, but using the above method can not meet and control well after many set Nut columns composition nut column systems system it
Between required precision, and above-mentioned specific accuracy control method is not disclosed yet;In application publication number:It is public in CN103669314A
A kind of rack-and-pinion climbing type vertical ship lift tooth bar Efficient installation method is opened, the method mainly describes the installation side of tooth bar
Method, although Nut column and tooth bar contribute to the primary drive support member of ship lift, but its mounting process parameter is different, because
This is also not suitable for the installation of tooth bar;A kind of ship lift Nut column is disclosed in CNIO3643667A auxiliary adjustment side is installed
Method, but the method is only applicable to the adjustment of Nut column.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of high-lift tooth and climb formula ship lift Nut column system construction side
Method and installation accuracy control method, realize the efficient accurate installation that high-lift tooth climbs formula ship lift Nut column, effective to solve
Every construction Difficulties, while ensure that the installation accuracy between nut column system, improve installation quality, it is met engineering real
Border is needed, it is ensured that whole high-lift ship lift project is smoothed out, while ensure that construction safety.
In order to realize above-mentioned technical characteristic, the object of the present invention is achieved like this:High-lift tooth climbs formula ship lift spiral shell
Female column system construction method, comprises the following steps:
1)Fist stage concrete and phase embedded part construction:One phase of Nut column embedded part includes mounting bracket and deformed bar collar
Pipe, completes designing and producing for mounting bracket by concreting unit in factory, deformed bar harness sleeve is welded using spot welding
It is connected in mounting bracket;Lifted using wall-attachment tower crane, during in-site installation, in construction part relevant position measuring elevational point and spiral shell
Female one phase of post embedded part installation center line, installation center, elevation and the seamless steel pipe horizontal level of one phase of adjusting nut post embedded part;One
Phase embedded part is installed after the completion of positioning, then carries out reinforcing bar colligation;It is last to add according to phase embedded part design cell merogenesis installation, adjustment
Gu, and poured, wherein angle steel is buried in relevant position in storehouse, and the relevant position installed in Nut column sets dowel, most
Pouring for whole fist stage concrete king-post is completed eventually;
2)Second stage concrete and the second stage of embedded part construction:Nut column second phase embedded part construction, Nut column second phase embedded part is mixed in a phase
Solidifying soil, which is poured to 196m, starts construction, treats that king-post pours completion, while carrying out Second Construction after completing own vol deformation, first
The surveying setting-out on king-post, then erection construction framed bent;The second stage of embedded part is to connect I steel composite by many root beads to form, first segment nut
Before post second phase embedded part is installed, steel construction is installed in the second stage of embedded part bottom, measured after top of steel elevation, and is put down on steel construction
Face adds adjustment cushion block, its cope level is slightly below the Bottom Altitude of Nut column embedded part, after the embedded part lifting in place of Nut column second phase,
The dowel that one phase was buried and the second stage of embedded part spot welding, tentatively fix, and are finally completed the installation of whole the second stage of embedded part;Second phase buries
After part installation, a connecting tube and steel pipe are penetrated in the deformed bar harness sleeve of a phase embedded part, steel pipe is adjusted
To installation center elevation location, and make to fix after its holding level, then by the firm reinforcing of the second stage of embedded part and pre-buried iron plate, finally
Complete the pouring construction of second stage concrete;
3)Nut column installs preparation:Before Nut column lifting, the construction platform at erection construction position and top peace
Full protection platform, arrangement measurement net, it is ensured that various putting up platform meet construction needs;The corresponding the second stage of embedded part of Nut column will often be saved
Terraced flank of tooth surface mortar and other debris are cleaned out, and back is corresponded at the floor layer, groove inner concrete, reinforcing bar of PVC sleeve pipes
Cleared up;The quality testing of Nut column is carried out according to design and code requirement, one tower body position of Nut column correspondence is often covered and enters
Row is installed;The face that contacted with each other between having installed section, section two to be installed successively is cleared up before Nut column lifting;Section top has been installed
Elevation, steel diaphragm elevation and levelness are detected and recorded, analyzed, it is ensured that cope level can meet section Nut column to be installed
Elevation installation specification;First section Nut column bracket is finally carried out to install;
4)Nut column is installed:
4.1)Nut column is transported and lifted, and Nut column is lifted on flat car using truck crane and transports ship railway carriage or compartment room base plate
Correspondence installation site is put.
4.2)Nut column is lifted using special hanger, suspender tightens high-strength company between suspender and component lifting hole(eyelet) when installing
Connecting bolt, Nut column is lifted near installation site, and Nut column is furthered to installation position with guide chain, then connection adjustment spiral shell
Tooth bar and the second stage of embedded part, are tentatively connected, 16T press branch are used on bottom bracket by bar using internode adjusting bolt
Support, after the completion of carry out tear hook open.
4.3)In every Nut column left and right banks both sides welding adjustment frock, Nut column is subjected to Primary Location and adjustment;
4.4)After Nut column lifting is in place, at top, welding coil holder measures cultellation, utilizes angle square, Steel Ruler, piano
Line hangs again vertical method, on the basis of the corresponding coordinate value of every vertical line, and adjusting nut post is controlled according to every technical requirements
Mileage, center, elevation, perpendicularity, depth of parallelism etc. control size, carry out just successive step simultaneously to upstream and downstream two panels Nut column;
4.5)After the completion of first successive step, Nut column accurate adjustment is carried out according to the every installation specification of Nut column with total powerstation,
Nut column installation site and the adjacent tooth bar installation site installed are positioning datum during adjustment.
4.6)Installation personnel carries out upstream and downstream Nut column range difference and upstream and downstream depth displacement using in-process measurement utensil, interior
The 90 ° of control adjustment of circular diameter and double guide pass angles are checked and accepted.
4.6)After Nut column is accurately adjusted in place, jack is adjusted on locking fixture, regulating bolt is tightened and completes reinforcing,
Nut column installation site deviation is monitored using vertical line in reinforcing process, such as varies widely, stops in reinforcing process
Only reinforce and readjusted.
4.7)Accurate adjustment in place, reinforce complete and measure after acceptance(check), by deformed bar installation site two ends hole profit
Carry out sealing blocking with cotton, be then transferred to gap formwork erection process, formwork erection complete and by filling water test after, by deformed bar
Installation site two ends hole sealer is taken out, after moisture in pipe is drained, and prestressing force is carried out from Nut column back by workmen
Reinforcement installation.
4.8)Carry out needing that Nut column installation site is carried out to check examination before cementing operations, grouting after the completion of formwork erection, it is qualified
After can carry out carrying out deformation monitoring with dial gauge in gap grouting, filling process.
4.9)After gap grouting is completed 14 days, deformed bar is installed from Nut column back, deformed bar
Pretightning force apply overleaf carry out, the installation of high-strength bolt is then installed before each bolt tensioning, according to tension sequence
The adjusting screw rod of corresponding position is removed and installed after high-strength bolt, stretching construction is carried out.
4.10)It is positioning datum with the final check and acceptance result of Nut column for completing to install first, carries out remaining 3 tower body nuts
The installation of post, according to positioning datum during installation, carries out every physical dimension such as four sets of nut intercolumniation relative positions and is adjusted, make
All sizes meet design requirement.
4.11)It is positioning datum with the final check and acceptance result of Nut column for completing to install first, carries out remaining 3 tower body nuts
The installation of post, according to positioning datum during installation, carries out every physical dimension such as four sets of nut intercolumniation relative positions and is adjusted, make
All sizes meet design requirement;
5)Check and accept, examination of being tested after all Nut column installations of four king-posts, check and accept after completing and carry out
Ship lift operation experiments.
Described 1)Transverse pitch uses the ceiling hammer on Nut column central axis between middle deformed bar harness sleeve
Method is adjusted longitudinal pitch between control, sleeve pipe and carries out elevation adjustment control using the method for spirit level;With king-post
The rise of height is poured, after the completion of each storehouse concreting, measuring goes out center line and elevational point on wall, in order under
The installation of one storehouse embedded part and the installation site inspection of upper storehouse embedded part.
Described 2)Middle construction framed bent is set up using steel pipe and fastener, and landing framed bent, elevation 84m are set up in below elevation 84m
Suspention framed bent is set up above, often section suspention framed bent is set up elevation and determined according to each embedded part setting height(from bottom), on often section suspention framed bent
If windrow platform, suspention framed bent overhauls the lifting of bridge machine using 63t in main equipment room and mounted;Described 2)The second stage of embedded part of middle Nut column is paired
Install, after tentatively fixing, steelframe is installed in certain height and hangs piano wire progress installation accuracy control, a phase is utilized during adjustment
Dowel welds adjusting bolt or strainer, adjusts its center line and perpendicularity, and the control that elevation is identified according to manufacturing firm is marked
Control is adjusted with level meter, after adjustment is checked out, is welded the second stage of embedded part of Nut column and a phase dowel with lapping plate or angle bar
Connect reinforcing.
Described 2)Middle Concrete Construction of Powerhouse comprises the following steps, the face processing of fist stage concrete seam:In fist stage concrete table
Face artificial chiseling, then use high pressure water washing;Reinforcement installation:Reinforcing bar peace is carried out after the second stage of embedded part installation site is adjusted in place
Dress, reinforcement installation is mainly aided with after manual electric arc welding, reinforcement installation using mechanical connection, then the second stage of embedded part of repetition measurement and adjust plus
Gu;Model sheetinstallat:Template is reinforced using the pull head or embedded part on fist stage concrete, sets mixed in every 2m-3m of vertical film
Solidifying soil vibrates hole;Second stage concrete is poured:Solidifying soil is poured using a grading concrete, slump 16cm~18cm, using stirring
Car horizontal transport concrete, flexible pipe vibrator is vibrated, and concrete is poured using concrete pump and put in storage.
Described 3)Middle first section Nut column originates elevation in the good bracket of bottom welding, pallet top elevation when installing than Nut column
Low 10 ~ 20mm, is easy to carry out elevation adjustment using jack;When Nut column bracket is installed, it is thick that carriage width is not more than Nut column
Degree, the specific installation site of bracket is determined according to the embedded datum mark position in scene.
Described 4.6)Middle upstream and downstream Nut column depth displacement is 225mm, advanced using total powerstation when carrying out Nut column installation
Side Nut column elevation adjustment positioning of the row with 3150mm mark lines, on the basis of its elevation, carries out corresponding opposite side spiral shell
Female pillar height journey adjustment, using two pieces of finishing standard cushion blocks during adjustment, coordinates frame level and clearance gauge to carry out elevation tune
Whole control;The cushion block includes cushion block one and cushion block two, the length and width and height respectively 300 of the cushion block one, 50,225mm;Pad
The length and width and height respectively 1500 of block two, 50,50mm, two cushion block surface roughnesses are Ra1.6, depth of parallelism 0.02mm;
Described 4.6)Middle upstream and downstream Nut column range difference is 1142mm, when carrying out Nut column installation, utilizes inside micrometer
Slide measure is coordinated to carry out two panels Nut column respective distances difference 1142mm measurement adjustment controls;
Described 4.6)The middle a diameter of 1365mm of inner circle, double 90 ° of guide pass angles measure adjustment when measuring adjustment
Upstream and downstream two panels Nut column X, Y-axis line axiality, the depth of parallelism, perpendicularity and four angular separation 1142mm, make upstream and downstream two panels spiral shell
The corresponding every deviation of female post ensures trend in the same direction and controlled in design requirement, it is ensured that interior circular diameter 1365mm and double guide pass
90 ° of deviations of angle meet design requirement.
Described 4)It is middle needed in the Nut column installation process of first section each of the above section in internode mounting and adjusting dividing plate, use
Dividing plate just precise control, is portrayed line and measured Nut column internode is reserved, will measured with slide measure during installation to producer
As a result fabrication data is contrasted in the factory provided with producer, and spacing is consistent with the fabrication data in factory between envoy, so as to meet
Adjacent nut post internode pitch limit deviation reaches 450 ± 0.5mm requirement;Two save Nut column after Nut column gaps are adjusted
Positioning, the dividing plate between saving up and down should be with Nut column end face tightening, and the filler for then carrying out internode gap according to design requirement is filled out
Fill.
Monitoring is changed to guide-rail plate using dial gauge in the filling process, when monitoring data is varied widely,
More than 0.2mm, filling process is temporarily interrupted, site inspection, processing is carried out, grouting is proceeded after completion processing;Filling speed
Can not be too fast, and want uniform and stable.
The deformed bar tensioning is carried out by the order of design drawing requirement, each deformed bar and high-strength bolt
Prestressing force applies in two times:Defined order applying portion pretightning force and in order pretension are pressed for the first time, treat same section nut
The whole deformed bars and high-strength bolt of post are completed after first time pretension, are carried out second of pretension again by design requirement, are made
Whole deformed bars of installed Nut column and the pretightning force of high-strength bolt reach respective setting value;After the completion of tensioning, press
Seal treatment is carried out using steel bowl and anti-corrosive mixture at the two ends of deformed bar according to installation requirement, deformed bar is exposed
Part carries out sealing protection using glass fiber aluminium sheet.
Using nut column system installation accuracy control method is carried out during above-mentioned construction method, it comprises the following steps:
1)After Nut column is installed in place, steelframe is installed in Nut column certain altitude and hangs piano wire, it is accurate to survey four steel of inspection
The position of qin line, the straight line and Nut column cross central line for making at wherein 3 points is precisely coincident, and piano wire position deviation should be controlled
In the range of ± 0.5mm, after piano wire has been checked, piano wire should be checked simultaneously and relative between mounted rack central line
Site error;
2)When Nut column is adjusted, upstream and downstream direction center is adjusted with M30 screw rods, and left and right side direction is buried in Nut column
Weldering adjustment support is adjusted with jack on part;
3)After the completion of Nut column adjustment, deformed bar and high-strength bolt are penetrated, and carries out just twisting in order, after just twisting
Inspection adjustment is carried out again, and after four groups of Nut column first segment installations, the relative position of four groups of Nut columns is checked through accurate measurement
Deviation and its relative position deviation with tooth bar, and be adjusted until meeting installation accuracy requirement, after acceptance(check), Fang Kejin
Row PAGEL V1/50 mortar is irrigated, and after the perfusion of PAGEL V1/50 mortar is finished, then carries out repetition measurement, after repetition measurement is complete, carries out diameter
Repetition measurement is carried out again after 32mm deformed bar tensioning, checks whether it is subjected to displacement;
4)Adjusting nut on the basis of the control mark identified when first segment Nut column is adjusted by first segment tooth bar manufacturing firm
The control of Zhu Shang manufacturing firms mark marks contour, its error≤1mm, and respectively an adjacent pitch controls 450mm dimensional discrepancys successively
≤ 0.5mm, bridging head arbitrarily 7 pitch 3150mm dimensional discrepancys≤0.5mm of measurement, when hereafter often section is installed, with first segment
On the basis of be adjusted, often save the joint adjustment internode of Nut column away from when should strictly control its pitch, often save elevation direction and exist
Internode is adjusted using taper liner, after adjustment examination is finished, on request welding point cushion block, four groups of Nut column group installations
Afterwards, its perpendicularity, Nut column cope level are checked, the mutual parallelism tolerance of four groups of Nut columns answers≤5mm;
5)Often section Nut column mounting and adjusting finish after, it is qualified by inspection after start PAGEL V1/50 mortar perfusion, Nut column
It is 14cm with embedded part space, Nut column two ends are using sizing punching block sealing, and template is solid to drawing using a diameter of 16mm tie rods in both sides
It is fixed;According to the characteristic of PAGEL V1/50 plaster materials, each influx height is that a Nut column installs section, i.e. 4.95m, grouting
Pressure is 0.3MPa, and the water and air in slurry discharge pipe line is used before grouting, it is ensured that whole pipeline does not mix air, pours into
Cheng Zhong, injection rate is 15L/min, and pressure limit is 0.3MPa, and filling process tries one's best holding continuously, occurs without improper interruption,
After grout outlet emerges slurries, 5~10min of slurry is closed using 0.3MPa grouting pressure, makes slurries more closely knit, uniform.
The method have the advantages that:
1st, by the way that deformed bar harness sleeve is used into spot-welded in mounting bracket, integral installation and adjustment, effectively
Ensure that sleeve pipe occurs without deformation or damaged in installation and process of vibrating, so as to ensure energy during Nut column subsequent installation
It is enough smoothly to pass through deformed bar, while ensure that the concentricity of sleeve pipe and Nut column both sides deformed bar hole, improve
The precision that follow-up Nut column is installed.
2nd, the second stage of embedded part of Nut column is constructed again after the completion of the fist stage concrete of king-post civil engineering, treats that the second stage of embedded part is whole
After the completion of construction, from bottom to top, merogenesis carries out the installation of Nut column, grouting again, finally carries out Nut column prestressed stretch-draw, can
It is effective to reduce the influence that the king-post deformation of creep is installed to Nut column, it is ensured that Nut column installation quality and installation accuracy.
3rd, by the embedded angle steel in relevant position and dowel in the storehouse of fist stage concrete, a phase in next storehouse can be easy to bury
The fixation of part, by the installation, adjustment, reinforcing that also allow for the second stage of embedded part of Nut column.
4th, by being installed a phase embedded part according to design cell merogenesis, adjusting and reinforce, while as king-post pours height
Rise, to Nut column center line and the school survey again of each vertical control point, is easy to the installation and inspection of embedded part, effectively prevents embedded part
With the rise at position, cumulative errors are excessive for installation.
5th, after phase embedded part adjustment is completed, reinforced by using angle steel, it is ensured that in casting concrete,
Embedded part, cannula center is not subjected to displacement.
6th, during Nut column adjustment is carried out, while controlling adjustment upstream and downstream Nut column depth displacement, upstream and downstream nut
Post range difference, interior circular diameter and double guide pass angles are 90 ° of installation accuracies for improving Nut column and mounted in pairing mode quality.
7th, Nut column second phase adjustment complete and it is qualified by inspection after, penetrate diameter 63.5mm connecting tubes and diameter 52mm steel
Pipe, diameter 52mm steel pipes are adjusted to installation center elevation location and make to fix after its holding level, then by the Nut column second phase
Embedded part and the firm reinforcing of pre-buried iron plate, are subjected to displacement when effectively can prevent from pouring second stage concrete.
9th, first tentatively tightened, made every with 8 groups of M30 high intensity connecting bolts in deformed bar stretching process is carried out
The stress of group bolt reaches 150kN, then penetrates 12 φ 32mm deformed bars, and deformed bar is opened in order
Draw, its stress is reached 200kN, and carry out tensioning or pretension simultaneously, unload simultaneously, make Nut column uniform stressed, can be effective
Improve Nut column installation accuracy and installation quality.When preventing deformed bar tensioning simultaneously, Nut column, which produces to turn over, to be stuck up.
10th, by nut column system installation accuracy control method, the installation quality and peace of Nut column can effectively be improved
Precision is filled, so that the smooth development of whole ship lift project is ensure that, while improving the quality of ship elevator engineering, it is ensured that rise
Ship machine service life and the security using process.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is four sets of Nut column integral installation arrangement top views of ship lift of the present invention.
In figure:Fist stage concrete 1, deformed bar harness sleeve 2, second stage concrete 3, the second stage of embedded part 4, deformed bar 5,
Number left Nut column 6, right Nut column 7, PAGEL V1/50 mortar 8, No. two left Nut columns 9, a No. two right Nut columns 10, three
Number left Nut column 11, No. three right Nut columns 12, No. four left Nut columns 13, No. four right Nut columns 14, tooth bar 15, No. two tooth bars
16th, No. three tooth bars 17, No. four tooth bars 18.
Fig. 2 is the single set Nut column arrangement top view of the present invention and installation site datum mark.
In figure:A、B、C、D、E、F:Respectively Nut column base point of installation.
Fig. 3 is hanger front view in Nut column installation process of the present invention.
Fig. 4 is the section B-B figure of hanger in Fig. 3 in Nut column installation process of the present invention.
In figure:Connecting plate 19, reinforcing plate 20, shackle plate 21.
Fig. 5 is the left and right installation site adjustment structural representation of Nut column of the present invention.
In figure:Jack up hanging basket 22, adjustment support 23, left jack 24, right jack 25.
Fig. 6 is that a pair of Nut columns elevation installation site of the invention adjusts structural representation.
In figure:Lower height adjustment frock 26, adjusting screw rod 27, upper height adjustment frock 28, standard cushion block 29.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Referring to Fig. 1, it is four sets of Nut column integral installation arrangement top views of ship lift of the present invention, first carries out fist stage concrete
1 construction casting, then pouring for second stage concrete 3 and the second stage of embedded part 4 is carried out, finally carry out left Nut column 6, a right spiral shell
The installation of female post 7, and Nut column progress tensioning is fixed using deformed bar 5, in a left Nut column 6, a right nut
Gap between post 7 and second stage concrete 3 is filled connection using PAGEL V1/50 mortar 8, and ship lift includes four sets of nuts
Column system, often covers nut column system and is required, it is necessary to meet corresponding positional precision control, so as to ensure the normal reliable of ship lift
Operation, is a tooth bar 15, No. two tooth bars 16, No. three tooth bars 17 and No. four tooth bars 18 also including four sets of rack systems, is installing
During need to ensure often to cover installation site between nut column system and four sets of rack systems and installation accuracy control requirement, enter
And meet and being smoothed out for whole ship lift project is installed.
Referring to Fig. 2, after Nut column is installed in place, steelframe is installed in Nut column certain altitude and hangs piano wire, Nut column steel
Qin line hangs A, B, C, D, E, F that position is seen in Fig. 2, the accurate position for surveying inspection piano wire, makes 3 points of B, C, D straight line and nut
Post cross central line is precisely coincident, and piano wire position deviation should be controlled in the range of ± 0.5mm., should after piano wire has been checked
Piano wire and the relative position error between mounted rack central line, and in this, as the control that Nut column is adjusted are checked simultaneously
Standard processed.
Referring to Fig. 3-4, it is necessary to use Nut column hanger in Nut column installation process is carried out, hanger includes connecting plate 19,
Two shackle plates 21 are installed, the side of shackle plate 21 is welded with reinforcing plate 20, by the way that this hanger is installed on connecting plate 19
Nut top end, so that convenient lifted by the way of lifting to it.
Referring to Fig. 5, when carrying out the left and right directions installation site adjustment of Nut column, it is necessary in the both sides point of adjustment support 23
Left jack 24, right jack 25 are not installed, and then its installation site is adjusted.
It is a pair of Nut columns elevation installation site adjustment of the invention, due to there is height between opposing nut post referring to Fig. 6
Difference, be respectively mounted in the both sides up and down of a left Nut column 6 lower height adjustment frock 26, adjusting screw rod 27, on highly adjust work
28, standard cushion block 29 is filled, the height for adjusting a left Nut column 6 by height adjustment frock makes the height that it meets standard cushion block
Difference, and then realize a pair of Nut column elevation installation site adjustment.
Referring to Fig. 1-6, high-lift tooth climbs formula ship lift Nut column system construction method, comprises the following steps:
High-lift tooth climbs formula ship lift Nut column system construction method, comprises the following steps:
1)Fist stage concrete and phase embedded part construction:One phase of Nut column embedded part includes mounting bracket and deformed bar collar
Pipe, completes designing and producing for mounting bracket by concreting unit in factory, deformed bar harness sleeve is welded using spot welding
It is connected in mounting bracket;Lifted using wall-attachment tower crane, during in-site installation, in construction part relevant position measuring elevational point and spiral shell
Female one phase of post embedded part installation center line, installation center, elevation and the seamless steel pipe horizontal level of one phase of adjusting nut post embedded part;One
Phase embedded part is installed after the completion of positioning, then carries out reinforcing bar colligation;It is last to add according to phase embedded part design cell merogenesis installation, adjustment
Gu, and poured, wherein angle steel is buried in relevant position in storehouse, and the relevant position installed in Nut column sets dowel, most
Pouring for whole fist stage concrete king-post is completed eventually;
2)Second stage concrete and the second stage of embedded part construction:Nut column second phase embedded part construction, Nut column second phase embedded part is mixed in a phase
Solidifying soil, which is poured to 196m, starts construction, treats that king-post pours completion, while carrying out Second Construction after completing own vol deformation, first
The surveying setting-out on king-post, then erection construction framed bent;The second stage of embedded part is to connect I steel composite by many root beads to form, first segment nut
Before post second phase embedded part is installed, steel construction is installed in the second stage of embedded part bottom, measured after top of steel elevation, and is put down on steel construction
Face adds adjustment cushion block, its cope level is slightly below the Bottom Altitude of Nut column embedded part, after the embedded part lifting in place of Nut column second phase,
The dowel that one phase was buried and the second stage of embedded part spot welding, tentatively fix, and are finally completed the installation of whole the second stage of embedded part;Second phase buries
After part installation, a connecting tube and steel pipe are penetrated in the deformed bar harness sleeve of a phase embedded part, steel pipe is adjusted
To installation center elevation location, and make to fix after its holding level, then by the firm reinforcing of the second stage of embedded part and pre-buried iron plate, finally
Complete the pouring construction of second stage concrete;
3)Nut column installs preparation:Before Nut column lifting, the construction platform at erection construction position and top peace
Full protection platform, arrangement measurement net, it is ensured that various putting up platform meet construction needs;The corresponding the second stage of embedded part of Nut column will often be saved
Terraced flank of tooth surface mortar and other debris are cleaned out, and back is corresponded at the floor layer, groove inner concrete, reinforcing bar of PVC sleeve pipes
Cleared up;The quality testing of Nut column is carried out according to design and code requirement, one tower body position of Nut column correspondence is often covered and enters
Row is installed;The face that contacted with each other between having installed section, section two to be installed successively is cleared up before Nut column lifting;Section top has been installed
Elevation, steel diaphragm elevation and levelness are detected and recorded, analyzed, it is ensured that cope level can meet section Nut column to be installed
Elevation installation specification;First section Nut column bracket is finally carried out to install;
4)Nut column is installed:
4.1)Nut column is transported and lifted, and Nut column is lifted on flat car using truck crane and transports ship railway carriage or compartment room base plate
Correspondence installation site is put.
4.2)Nut column is lifted using special hanger, suspender tightens high-strength company between suspender and component lifting hole(eyelet) when installing
Connecting bolt, Nut column is lifted near installation site, and Nut column is furthered to installation position with guide chain, then connection adjustment spiral shell
Tooth bar and the second stage of embedded part, are tentatively connected, 16T press branch are used on bottom bracket by bar using internode adjusting bolt
Support, after the completion of carry out tear hook open.
4.3)In every Nut column left and right banks both sides welding adjustment frock, Nut column is subjected to Primary Location and adjustment;
4.4)After Nut column lifting is in place, at top, welding coil holder measures cultellation, utilizes angle square, Steel Ruler, piano
Line hangs again vertical method, on the basis of the corresponding coordinate value of every vertical line, and adjusting nut post is controlled according to every technical requirements
Mileage, center, elevation, perpendicularity, depth of parallelism etc. control size, carry out just successive step simultaneously to upstream and downstream two panels Nut column;
4.5)After the completion of first successive step, Nut column accurate adjustment is carried out according to the every installation specification of Nut column with total powerstation,
Nut column installation site and the adjacent tooth bar installation site installed are positioning datum during adjustment.
4.6)Installation personnel carries out upstream and downstream Nut column range difference and upstream and downstream depth displacement using in-process measurement utensil, interior
The 90 ° of control adjustment of circular diameter and double guide pass angles are checked and accepted.
4.6)After Nut column is accurately adjusted in place, jack is adjusted on locking fixture, regulating bolt is tightened and completes reinforcing,
Nut column installation site deviation is monitored using vertical line in reinforcing process, such as varies widely, stops in reinforcing process
Only reinforce and readjusted.
4.7)Accurate adjustment in place, reinforce complete and measure after acceptance(check), by deformed bar installation site two ends hole profit
Carry out sealing blocking with cotton, be then transferred to gap formwork erection process, formwork erection complete and by filling water test after, by deformed bar
Installation site two ends hole sealer is taken out, after moisture in pipe is drained, and prestressing force is carried out from Nut column back by workmen
Reinforcement installation.
4.8)Carry out needing that Nut column installation site is carried out to check examination before cementing operations, grouting after the completion of formwork erection, it is qualified
After can carry out carrying out deformation monitoring with dial gauge in gap grouting, filling process.
4.9)After gap grouting is completed 14 days, deformed bar is installed from Nut column back, deformed bar
Pretightning force apply overleaf carry out, the installation of high-strength bolt is then installed before each bolt tensioning, according to tension sequence
The adjusting screw rod of corresponding position is removed and installed after high-strength bolt, stretching construction is carried out.
4.10)It is positioning datum with the final check and acceptance result of Nut column for completing to install first, carries out remaining 3 tower body nuts
The installation of post, according to positioning datum during installation, carries out every physical dimension such as four sets of nut intercolumniation relative positions and is adjusted, make
All sizes meet design requirement.
4.11)It is positioning datum with the final check and acceptance result of Nut column for completing to install first, carries out remaining 3 tower body nuts
The installation of post, according to positioning datum during installation, carries out every physical dimension such as four sets of nut intercolumniation relative positions and is adjusted, make
All sizes meet design requirement;
5)Check and accept, examination of being tested after all Nut column installations of four king-posts, check and accept after completing and carry out
Ship lift operation experiments.
Described 1)Transverse pitch uses the ceiling hammer on Nut column central axis between middle deformed bar harness sleeve
Method is adjusted longitudinal pitch between control, sleeve pipe and carries out elevation adjustment control using the method for spirit level;With king-post
The rise of height is poured, after the completion of each storehouse concreting, measuring goes out center line and elevational point on wall, in order under
The installation of one storehouse embedded part and the installation site inspection of upper storehouse embedded part.
Described 2)Middle construction framed bent is set up using steel pipe and fastener, and landing framed bent, elevation 84m are set up in below elevation 84m
Suspention framed bent is set up above, often section suspention framed bent is set up elevation and determined according to each embedded part setting height(from bottom), on often section suspention framed bent
If windrow platform, suspention framed bent overhauls the lifting of bridge machine using 63t in main equipment room and mounted;Described 2)The second stage of embedded part of middle Nut column is paired
Install, after tentatively fixing, steelframe is installed in certain height and hangs piano wire progress installation accuracy control, a phase is utilized during adjustment
Dowel welds adjusting bolt or strainer, adjusts its center line and perpendicularity, and the control that elevation is identified according to manufacturing firm is marked
Control is adjusted with level meter, after adjustment is checked out, is welded the second stage of embedded part of Nut column and a phase dowel with lapping plate or angle bar
Connect reinforcing.
Described 2)Middle Concrete Construction of Powerhouse comprises the following steps, the face processing of fist stage concrete seam:In fist stage concrete table
Face artificial chiseling, then use high pressure water washing;Reinforcement installation:Reinforcing bar peace is carried out after the second stage of embedded part installation site is adjusted in place
Dress, reinforcement installation is mainly aided with after manual electric arc welding, reinforcement installation using mechanical connection, then the second stage of embedded part of repetition measurement and adjust plus
Gu;Model sheetinstallat:Template is reinforced using the pull head or embedded part on fist stage concrete, sets mixed in every 2m-3m of vertical film
Solidifying soil vibrates hole;Second stage concrete is poured:Solidifying soil is poured using a grading concrete, slump 16cm~18cm, using stirring
Car horizontal transport concrete, flexible pipe vibrator is vibrated, and concrete is poured using concrete pump and put in storage.
Described 3)Middle first section Nut column originates elevation in the good bracket of bottom welding, pallet top elevation when installing than Nut column
Low 10 ~ 20mm, is easy to carry out elevation adjustment using jack;When Nut column bracket is installed, it is thick that carriage width is not more than Nut column
Degree, the specific installation site of bracket is determined according to the embedded datum mark position in scene.
Described 4.6)Middle upstream and downstream Nut column depth displacement is 225mm, advanced using total powerstation when carrying out Nut column installation
Side Nut column elevation adjustment positioning of the row with 3150mm mark lines, on the basis of its elevation, carries out corresponding opposite side spiral shell
Female pillar height journey adjustment, using two pieces of finishing standard cushion blocks during adjustment, coordinates frame level and clearance gauge to carry out elevation tune
Whole control;The cushion block includes cushion block one and cushion block two, the length and width and height respectively 300 of the cushion block one, 50,225mm;Pad
The length and width and height respectively 1500 of block two, 50,50mm, two cushion block surface roughnesses are Ra1.6, depth of parallelism 0.02mm;
Described 4.6)Middle upstream and downstream Nut column range difference is 1142mm, when carrying out Nut column installation, utilizes inside micrometer
Slide measure is coordinated to carry out two panels Nut column respective distances difference 1142mm measurement adjustment controls;
Described 4.6)The middle a diameter of 1365mm of inner circle, double 90 ° of guide pass angles measure adjustment when measuring adjustment
Upstream and downstream two panels Nut column X, Y-axis line axiality, the depth of parallelism, perpendicularity and four angular separation 1142mm, make upstream and downstream two panels spiral shell
The corresponding every deviation of female post ensures trend in the same direction and controlled in design requirement, it is ensured that interior circular diameter 1365mm and double guide pass
90 ° of deviations of angle meet design requirement.
Described 4)It is middle needed in the Nut column installation process of first section each of the above section in internode mounting and adjusting dividing plate, use
Dividing plate just precise control, is portrayed line and measured Nut column internode is reserved, will measured with slide measure during installation to producer
As a result fabrication data is contrasted in the factory provided with producer, and spacing is consistent with the fabrication data in factory between envoy, so as to meet
Adjacent nut post internode pitch limit deviation reaches 450 ± 0.5mm requirement;Two save Nut column after Nut column gaps are adjusted
Positioning, the dividing plate between saving up and down should be with Nut column end face tightening, and the filler for then carrying out internode gap according to design requirement is filled out
Fill.
Monitoring is changed to guide-rail plate using dial gauge in the filling process, when monitoring data is varied widely,
More than 0.2mm, filling process is temporarily interrupted, site inspection, processing is carried out, grouting is proceeded after completion processing;Filling speed
Can not be too fast, and want uniform and stable.
The deformed bar tensioning is carried out by the order of design drawing requirement, each deformed bar and high-strength bolt
Prestressing force applies in two times:Defined order applying portion pretightning force and in order pretension are pressed for the first time, treat same section nut
The whole deformed bars and high-strength bolt of post are completed after first time pretension, are carried out second of pretension again by design requirement, are made
Whole deformed bars of installed Nut column and the pretightning force of high-strength bolt reach respective setting value;After the completion of tensioning, press
Seal treatment is carried out using steel bowl and anti-corrosive mixture at the two ends of deformed bar according to installation requirement, deformed bar is exposed
Part carries out sealing protection using glass fiber aluminium sheet.
Using nut column system installation accuracy control method is carried out during above-mentioned construction method, it comprises the following steps:
1)After Nut column is installed in place, steelframe is installed in Nut column certain altitude and hangs piano wire, it is accurate to survey four steel of inspection
The position of qin line, the straight line and Nut column cross central line for making at wherein 3 points is precisely coincident, and piano wire position deviation should be controlled
In the range of ± 0.5mm, after piano wire has been checked, piano wire should be checked simultaneously and relative between mounted rack central line
Site error;
2)When Nut column is adjusted, upstream and downstream direction center is adjusted with M30 screw rods, and left and right side direction is buried in Nut column
Weldering adjustment support is adjusted with jack on part;
3)After the completion of Nut column adjustment, deformed bar and high-strength bolt are penetrated, and carries out just twisting in order, after just twisting
Inspection adjustment is carried out again, and after four groups of Nut column first segment installations, the relative position of four groups of Nut columns is checked through accurate measurement
Deviation and its relative position deviation with tooth bar, and be adjusted until meeting installation accuracy requirement, after acceptance(check), Fang Kejin
Row PAGEL V1/50 mortar is irrigated, and after the perfusion of PAGEL V1/50 mortar is finished, then carries out repetition measurement, after repetition measurement is complete, carries out diameter
Repetition measurement is carried out again after 32mm deformed bar tensioning, checks whether it is subjected to displacement;
4)Adjusting nut on the basis of the control mark identified when first segment Nut column is adjusted by first segment tooth bar manufacturing firm
The control of Zhu Shang manufacturing firms mark marks contour, its error≤1mm, and respectively an adjacent pitch controls 450mm dimensional discrepancys successively
≤ 0.5mm, bridging head arbitrarily 7 pitch 3150mm dimensional discrepancys≤0.5mm of measurement, when hereafter often section is installed, with first segment
On the basis of be adjusted, often save the joint adjustment internode of Nut column away from when should strictly control its pitch, often save elevation direction and exist
Internode is adjusted using taper liner, after adjustment examination is finished, on request welding point cushion block, four groups of Nut column group installations
Afterwards, its perpendicularity, Nut column cope level are checked, the mutual parallelism tolerance of four groups of Nut columns answers≤5mm;
5)Often section Nut column mounting and adjusting finish after, it is qualified by inspection after start PAGEL V1/50 mortar perfusion, Nut column
It is 14cm with embedded part space, Nut column two ends are using sizing punching block sealing, and template is solid to drawing using a diameter of 16mm tie rods in both sides
It is fixed;According to the characteristic of PAGEL V1/50 plaster materials, each influx height is that a Nut column installs section, i.e. 4.95m, grouting
Pressure is 0.3MPa, and the water and air in slurry discharge pipe line is used before grouting, it is ensured that whole pipeline does not mix air, pours into
Cheng Zhong, injection rate is 15L/min, and pressure limit is 0.3MPa, and filling process tries one's best holding continuously, occurs without improper interruption,
After grout outlet emerges slurries, 5~10min of slurry is closed using 0.3MPa grouting pressure, makes slurries more closely knit, uniform;
High-lift tooth climbs formula ship lift nut column system installation accuracy control method, and installation accuracy control index mainly has:
A. nut mast axis to adjacent rack symmetrical center line fore-and-aft distance tolerance:±2mm;
B. nut mast axis to the axis of ship railway carriage or compartment room 7 apart from tolerance:±12mm;
C. nut mast axis to ship railway carriage or compartment room F axis apart from tolerance:±7mm;
D. squareness tolerance of the Nut column cross central line relative to ship railway carriage or compartment room longitudinal centre line:5mm;
E. Nut column axis verticality tolerance:5mm;
F. the squareness tolerance of the Nut column longitudinal center plane of symmetry:5mm;
G. parallelism tolerance of the Nut column longitudinal center symmetrical plane relative to the reverse guide pass of tooth bar:5mm;
H. Nut column transverse center plane of symmetry squareness tolerance:5mm;
I. Nut column guide pass linearity tolerance:2/3000(It is not more than 2mm in any 3m length ranges);
J. the altitude location mark on Nut column is relative to the discrepancy in elevation that the altitude location on same elevation tooth bar is marked:±
2mm;
K. it is same section Nut column two panels nut thread tip circle cylinder bus parallelism tolerance:0.5mm;
L. it is same section Nut column two panels nut guide pass parallelism tolerance:0.2mm;
M. it is same section Nut column two panels nut thread tip circle cylinder diameter tolerance:±0.5mm;
N. the distance between two panels Nut column top surface and bottom surface tolerance is 0.2mm;
O. two section Nut columns between thread pitch tolerance:0.5mm;
P. it is first to save Nut column bottom indicia height and position deviation:±2mm;
Q. it is first to save Nut column bottom indicia and adjacent most coxopodite tooth bar bottom indicia height variation:≤0.5mm;
R. the Nut column number of altitude is relative to same elevation tooth bar altitude location mark position deviation:±2mm;
S. 4 head save the relative deviation of Nut column bottom indicia elevation:2mm;
T. the terraced tooth in back and the terraced backlash in the second stage of embedded part back:≥20mm.