CN102900022B - Cable stayed bridge leaning tower hydraulic climbing mould construction method - Google Patents
Cable stayed bridge leaning tower hydraulic climbing mould construction method Download PDFInfo
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Abstract
The invention discloses a kind of cable stayed bridge leaning tower hydraulic climbing mould construction method, comprising: leaning tower measurement and positioning, bury built-in fitting underground; Formwork erection builds first joint concrete, installs anchor system, load-bearing bolt (1) and climbing frame (3); Bearing frame and bearing platform are installed on anchor system; Installation form movable stand and upper mounting plate system, use upper mounting plate system formwork erection, bury built-in fitting underground, build king-post Section of three concrete; Lower platform is installed, by the demoulding of mobile upper mounting plate system; Phase III anchor system is installed, lifting rail (5), guide rail support leg (6) are installed; Support body entirety is risen to the king-post phase III by operation hydraulic system, installs lower floor's platform; By mobile upper mounting plate system matched moulds, bury built-in fitting underground, build king-post the 4th sections concrete; Support body is risen to king-post fourth stage by operation hydraulic system, enters the circulation construction stage.The present invention fast and effeciently completes the installation of template and saves the engineering quantity of template and support when king-post tilts.
Description
Technical field
The present invention relates generally to a kind of construction method being applied to cable stayed bridge leaning tower, is especially applied to cable stayed bridge leaning tower hydraulic climbing mould construction method.
Background technology
The king-post of the steel concrete leaning tower of cable stayed bridge generally adopts rectangular hollow section, and king-post profile adopts uniform section to arrange, due to gradient, highly high, reinforcing bar, template construction difficulty are large, and therefore common templates Scheme of Strengthening is difficult to reach construction object in this situation.
Summary of the invention
Technical problem to be solved by this invention be how to complete fast and effectively when king-post tilts template installation and save the engineering quantity of template and support.
For achieving the above object, the invention provides a kind of cable stayed bridge leaning tower hydraulic climbing mould construction method, the method comprises the steps: measurement and positioning determination leaning tower position, first and second joint template construct is installed, before second section template is in place, with erection bolt through the hole on form surfacing, built-in fitting is fixed in template; After concreting, unload erection bolt, move after template; Then being screwed into by load-bearing bolt 1 climbs in cone 2; Formwork hoisting is in place, and climbing frame 3 is stuck on load-bearing bolt 1, plugs safety pin 4; Assembled good bearing frame and bearing platform are mounted on mounted anchor system; Installation form movable stand and upper mounting plate system, use upper mounting plate system shuttering, bury climbing form system built-in fitting underground, build king-post Section of three concrete by design attitude; Install lower platform, colligation king-post Section four reinforcing bar, Section three concrete reaches by the demoulding of mobile upper mounting plate system after demoulding strength, clears up the surperficial and template surface of king-post; Phase III anchor system is installed, from top to bottom lifting rail 5 is installed, mounting guide rail support leg 6; Support body entirety is risen to the king-post phase III by operation hydraulic system, installs lower floor's platform; By mobile upper mounting plate system matched moulds, bury climbing form system built-in fitting underground by design attitude, build king-post the 4th sections concrete; Support body is risen to king-post fourth stage by operation hydraulic system, enters the circulation construction stage.
Described template is stupefied 7 by panel, wooden frame, horizontal steel backing, connect pawl, hanging component 9, flooring nail, fiber board bolt are formed by connecting; Panel adopts Visa plate 12, and ribs adopts wooden H-beam 13, horizontal steel backing stupefied employing Two bors d's oeuveres channel-section steel.
Described built-in fitting comprises: embedded part plate 15, high-strength bolt 16, climb cone 2, load-bearing bolt 1; Length and the diameter of embedded part plate 15 and high-strength bolt 16 must be determined by shearing resistance and tension designing and calculating; Climb cone 2 and erection bolt is located for embedded part plate 15 and high-strength bolt 16, before concrete placings, climb cone 2 and be fixed on panel by erection bolt; Load-bearing bolt 1 is the main stressed member in anchor parts, requires, through modifier treatment, to reach Rc25-30, and through flaw detection, determines just to allow to march into the arena without after heat treatment crack and other original cracks.
Guide rail 5 is the tracks that climb of whole climbing form system, and it is formed by steel plate and terraced shelves assembly welding, and terraced gear number amount is determined according to building height, and the ratchet for upper and lower yoke transfers loads to guide rail, and then is delivered in embedded part system.
Hydraulic system comprises: hydraulic pump, oil cylinder, upper and lower Commutating box, hydraulic pump and oil cylinder provide lifting drive to whole climbing form system, upper and lower Commutating box is the parts carrying out power transmission between climbing frame 3 and guide rail 5, change the ratchet direction of upper and lower Commutating box, realize the power and energy promoting climbing frame 3 and guide rail 5.
Construction method strong adaptability of the present invention, applied range, according to the dimensional requirement of architectural appearance, can configure corresponding template system, can form the climbing apparatus being suitable for differing tilt angles type tower column structure.Not by height restriction, the impact of construction by wind is little, and segment template can be recycled, and the most applicable highly high, that angle of inclination is large leaning tower is constructed.Substantially increase production efficiency, shorten the construction period, have very strong applicability and superiority for the cable stayed bridge inclination king-posts such as China railways, highway, municipal administration and the construction of similar Structural Engineering.
Accompanying drawing explanation
Fig. 1 is the top view of leaning tower hydraulic climbing formwork;
Fig. 2 is the generalized section of the hydraulic climbing formwork of leaning tower shown in Fig. 1;
Fig. 3 is leaning tower hydraulic climbing formwork template facade generalized section
Fig. 4 is the top view of leaning tower hydraulic climbing formwork template;
Fig. 5 is the hydraulic climbing formwork of leaning tower shown in Fig. 4 formwork sides generalized section;
Fig. 6 is suspension hook schematic diagram;
Fig. 7 is leaning tower hydraulic climbing formwork embedded anchor detailing schematic diagram;
Fig. 8 is leaning tower hydraulic climbing formwork climbing frame organigram;
Fig. 9 is leaning tower hydraulic climbing formwork job step schematic diagram one;
Figure 10 is leaning tower hydraulic climbing formwork job step schematic diagram two;
Figure 11 is leaning tower hydraulic climbing formwork job step schematic diagram three;
Figure 12 is leaning tower hydraulic climbing formwork job step schematic diagram four;
Figure 13 is leaning tower hydraulic climbing formwork job step schematic diagram five;
Figure 14 is leaning tower hydraulic climbing formwork job step schematic diagram six;
Figure 15 is leaning tower hydraulic climbing formwork job step schematic diagram seven;
Figure 16 is leaning tower hydraulic climbing formwork job step schematic diagram eight;
Figure 17 is leaning tower hydraulic climbing formwork job step schematic diagram nine;
Figure 18 is leaning tower hydraulic climbing formwork climbing frame general assembly schematic diagram;
Figure 19 is leaning tower hydraulic climbing formwork workflow diagram;
In figure: 1, load-bearing bolt, 2, climb cone, 3, climbing frame, 4, safety pin, 5, guide rail, 6, guide rail support leg, 7, horizontal steel backing is stupefied, 9, hanging component, 12, Visa plate, 13, wooden H-beam, 15, embedded part plate, 16, high-strength bolt.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, 2, be 30 degree or other number of degrees according to construction king-tower tower body inclining degree, this engineering design hydraulic climbing formwork system mainly comprises: template part, load bearing system, upper and lower climbing frame part, built-in fitting part, guide rail part, hydraulic system etc.
As illustrated in figures 3-6, template part stupefied 7 by panel, horizontal steel backing, connect the parts such as pawl, hanging component 9, flooring nail, fiber board bolt and be formed by connecting.Panel adopts 21mm Visa plate 12, and ribs adopts H200 wooden H-beam 13, horizontal steel backing stupefied employing Two bors d's oeuveres 14a channel-section steel.
Wooden form handling, assembled convenience, certain scope and degree can be assembled into the template of all size.Template is lighter, and rigidity is large, and intensity is good, meets the demands.
As shown in Figure 7,8, built-in fitting part: embedded part plate 15, high-strength bolt 16, climb the composition such as cone 2, load-bearing bolt 1.Built-in fitting system is the final load-bearing part of whole climbing form system.
As shown in figure 18, embedded part plate 15 is connected with high-strength bolt 16, and embedded part can be made to have good tension effect, also plays material-saving and the effect of joint space-efficient simultaneously, because its volume is little, eliminates the embedded part when formwork and touch the problem of reinforcing bar.Embedded part plate 15 size, pull bar length and diameter must be determined by shearing resistance and tension designing and calculating.
Climb cone 2 and the erection bolt location for embedded part plate 15 and high-strength bolt 16, before concrete placings, climb cone 2 and be fixed on panel by erection bolt.
Load-bearing bolt 1 is the main stressed member in anchor parts, requires to reach Rc25-30 through modifier treatment, and through flaw detection, determines just to allow to march into the arena without after heat treatment crack and other original cracks.
As shown in figure 19, this project hydraulic climbing mould construction flow process:
1. carry out first and second joint measurement and positioning of leaning tower according to construction drawing, make first and second joint template of leaning tower, second section template is carried out location and the installation of climbing form system built-in fitting.
Built-in fitting construction sequence:
The first step, built-in fitting is fixed on template.Before template is in place, with erection bolt through the hole on form surfacing, built-in fitting is fixed in template.To special location dimension, built-in fitting is fixed together by positioning bolt and panel, lifts with template.
Second step, the installation of load-bearing bolt 1.After concreting, unload erection bolt, move after template.Then load-bearing bolt 1 is screwed into and climbs in cone 2.
3rd step, template climbing frame 3 is in place.Formwork hoisting is in place, and climbing frame 3 is stuck on load-bearing bolt 1, plugs safety pin 4.
4th step, the taking-up of built-in fitting.Operating personnel, to hang on platform with box spanner and climb cone and unload tool by load-bearing bolt 1 with climb cone 2 and take out, use in order to turnover, then with mortar floating shed climb cone 2 after the hole that stays.
2. hydraulic climbing mould construction flow process:
The first step, formwork erection builds first and second sections concrete as shown in Figure 9, buries climbing form system built-in fitting during second section underground.
Second step, as shown in Figure 10 form removal, install anchoring piece, assembled good bearing frame and bearing platform mounted on mounted anchor system.
3rd step: installation form movable stand and upper mounting plate system as shown in figure 11, uses upper mounting plate system shuttering, buries climbing form system built-in fitting underground, build king-post Section of three concrete by design attitude.
4th step, installs lower platform as shown in figure 12, colligation king-post Section of four reinforcing bar, and Section of three concrete reaches by the demoulding of mobile upper mounting plate system after demoulding strength, cleaning king-post surface and template surface.
5th step, installs phase III anchor system as shown in figure 13, installs lifting rail 5 from top to bottom, mounting guide rail support leg 6.
6th step, operates hydraulic system as shown in figure 14 and support body entirety is risen to the king-post phase III, install lower floor's platform.
7th step, as shown in figure 15 by mobile upper mounting plate system matched moulds, buries climbing form system built-in fitting underground by design attitude, builds king-post the 4th sections concrete.
8th step, moves back mould as shown in figure 16, installs the 4th sections anchor system, colligation king-post five-stage reinforcing bar.
9th step, operate hydraulic system as shown in figure 17, guide rail is risen to king-post the 4th sections, utilize lower platform to remove king-post second stage load-bearing bolt 1, climb the turnover built-in fittings such as cone 2, support body is risen to king-post fourth stage by operation hydraulic system, enters the circulation construction stage.
Therefore be applicable to the climbing formwork for construction method of leaning tower, comprise: measurement and positioning determination leaning tower position, first and second joint template construct and installation, before second section template is in place, with erection bolt through the hole on form surfacing, built-in fitting is fixed in template.After concreting, unload erection bolt, move after template.Then load-bearing bolt 1 is screwed into and climbs in cone 2.Formwork hoisting is in place, and climbing frame 3 is stuck on load-bearing bolt 1, plugs safety pin 4.Assembled good bearing frame and bearing platform are mounted on mounted anchor system.Installation form movable stand and upper mounting plate system, use upper mounting plate system shuttering, bury climbing form system built-in fitting underground, build king-post Section of three concrete by design attitude.Install lower platform, colligation king-post Section four reinforcing bar, Section three concrete reaches by the demoulding of mobile upper mounting plate system after demoulding strength, clears up the surperficial and template surface of king-post.Phase III anchor system is installed, from top to bottom lifting rail 5 is installed, mounting guide rail support leg 6.Support body entirety is risen to the king-post phase III by operation hydraulic system, installs lower floor's platform.By mobile upper mounting plate system matched moulds, bury climbing form system built-in fitting underground by design attitude, build king-post the 4th sections concrete.Support body is risen to king-post fourth stage by operation hydraulic system, enters the circulation construction stage.
The jacking of the automatic creeping formwork of hydraulic pressure moves through hydraulic jack and replaces jacking to realize to guide rail 5 and climbing frame 3.Guide rail 5 and climbing frame 3 unrelated, can relative motion be carried out therebetween.When climbing frame 3 works, guide rail 5 and climbing frame 3 are all supported on embedded part bearing, between the two without relative motion.Load-bearing bolt 1, hanging seat body and embedded part bearing are installed moving back climbing on cone 2 that mould stays immediately after moving back mould, jacking guide rail 5 is carried out in the ratchet direction adjusting upper and lower Commutating box, treat that guide rail 5 jacking puts in place, be located in after on this embedded part bearing, operating personnel forward to immediately lower platform remove guide rail 5 promote after expose the embedded part bearing being positioned at lower platform place, climb cone 2 etc.Releasing climbing form frame just can start jacking climbing frame 3 after all drawknots, at this time guide rail 5 keeps motionless, oil cylinder is started after adjusting upper and lower ratchet direction, climbing frame 3 just moves relative to guide rail 5, by guide rail and this alternately attached wall of climbing frame 3, promote the other side each other, climbing frame 3 can be reserved and climb cone 2 and successively promote on body of wall.
The climbing system of hydraulic climbing formwork plate body system mainly comprises: built-in fitting part, guide rail part, hydraulic system composition.
The embedded part assembly of hydraulic climbing formwork system comprises: embedded part plate 15, high-strength bolt 16, climb cone 2, load-bearing bolt 1 etc.Built-in fitting system is the final load parts of whole climbing form system, all loads that climbing form system bears finally all are delivered to built-in fitting system, built-in fitting system whether firm, the reliability of the whole climbing form system of direct impact, thus, built-in fitting system is of paramount importance part in whole climbing form system.
Embedded part plate 15 is connected with high-strength bolt 16, and embedded part can be made to have good tension effect, also plays material-saving and the effect of joint space-efficient simultaneously, because its volume is little, eliminates the embedded part when formwork and touch the problem of reinforcing bar.Embedded part plate 15 size, high-strength bolt 16 length and diameter must be determined by shearing resistance and tension designing and calculating.
Template is stupefied 7 by panel, wooden frame, horizontal steel backing, connect the parts such as pawl, hanging component 9, flooring nail, fiber board bolt is formed by connecting.Panel adopts 21mm Visa plate 12, and ribs adopts H200 wooden H-beam 13, and horizontal steel backing stupefied 7 adopts Two bors d's oeuveres 14a channel-section steel.Wooden form handling, assembled convenience, certain scope and degree can be assembled into the template of all size.Template is lighter, and rigidity is large, and intensity is good, meets the demands.
Climb cone 2 and the erection bolt location for embedded part plate 15 and high-strength bolt 16, before concrete placings, climb cone 2 and be fixed on panel by erection bolt.
Load-bearing bolt 1 is the main stressed member in anchor parts, requires to reach Rc25-30 through modifier treatment, and through flaw detection, determines just to allow delivery without after heat treatment crack and other original cracks.
Guide rail 5 is the tracks that climb of whole climbing form system, and it is formed by steel plate and terraced shelves (terraced gear number amount is determined according to building height) assembly welding, and terraced shelves spacing 170mm, the ratchet for upper and lower yoke transfers loads to guide rail 5, and then is delivered in embedded part system.
Hydraulic climbing system comprises: hydraulic pump, oil cylinder, upper and lower Commutating box four part.
Hydraulic pump and oil cylinder provide lifting drive to whole climbing form system.
Upper and lower Commutating box is the vitals carrying out power transmission between climbing frame 3 and guide rail 5, changes the ratchet direction of upper and lower Commutating box, realizes the power and energy promoting climbing frame 3 or guide rail 5.
Construction method strong adaptability of the present invention, applied range, according to the dimensional requirement of architectural appearance, can configure corresponding template system, can form the climbing apparatus being suitable for differing tilt angles type tower column structure.Not by height restriction, the impact of construction by wind is little, and segment template can be recycled, and the most applicable highly high, that angle of inclination is large leaning tower is constructed.Substantially increase production efficiency, shorten the construction period, have very strong applicability and superiority for the cable stayed bridge inclination king-posts such as China railways, highway, municipal administration and the construction of similar Structural Engineering.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (5)
1. a cable stayed bridge leaning tower hydraulic climbing mould construction method, it is characterized in that: the method comprises the steps: measurement and positioning determination leaning tower position, first and second joint template construct is installed, before second section template is in place, with erection bolt through the hole on form surfacing, built-in fitting is fixed in template; After concreting, unload erection bolt, move after template; Then being screwed into by load-bearing bolt (1) climbs in cone (2); Formwork hoisting is in place, and climbing frame (3) is stuck on load-bearing bolt (1), plugs safety pin (4); Assembled good bearing frame and bearing platform are mounted on mounted anchor system; Installation form movable stand and upper mounting plate system, use upper mounting plate system shuttering, bury climbing form system built-in fitting underground, build king-post Section of three concrete by design attitude; Install lower platform, colligation king-post Section four reinforcing bar, Section three concrete reaches by the demoulding of mobile upper mounting plate system after demoulding strength, clears up the surperficial and template surface of king-post; Phase III anchor system is installed, lifting rail (5) is installed from top to bottom, mounting guide rail support leg (6); Support body entirety is risen to the king-post phase III by operation hydraulic system, installs lower floor's platform; By mobile upper mounting plate system matched moulds, bury climbing form system built-in fitting underground by design attitude, build king-post the 4th sections concrete; Support body is risen to king-post fourth stage by operation hydraulic system, enters the circulation construction stage.
2. cable stayed bridge leaning tower hydraulic climbing mould construction method according to claim 1, is characterized in that: described template is formed by connecting by panel, wooden frame, horizontal steel backing stupefied (7), connection pawl, hanging component (9), flooring nail, fiber board bolt; Panel adopts Visa plate (12), and ribs adopts wooden H-beam (13), horizontal steel backing stupefied employing Two bors d's oeuveres channel-section steel.
3. cable stayed bridge leaning tower hydraulic climbing mould construction method according to claim 1, is characterized in that: described built-in fitting comprises: embedded part plate (15), high-strength bolt (16), climb cone (2), load-bearing bolt (1); Length and the diameter of embedded part plate (15) and high-strength bolt (16) must be determined by shearing resistance and tension designing and calculating; Climb cone (2) and erection bolt and be used for embedded part plate (15) and high-strength bolt (16) is located, before concrete placings, climb cone (2) and be fixed on panel by erection bolt; Load-bearing bolt (1) is the main stressed member in anchor parts, requires, through modifier treatment, to reach Rc25-30, and through flaw detection, determines just to allow to march into the arena without after heat treatment crack and other original cracks.
4. cable stayed bridge leaning tower hydraulic climbing mould construction method according to claim 1, it is characterized in that: guide rail (5) is the track that climbs of whole climbing form system, it is formed by steel plate and terraced shelves assembly welding, ladder gear number amount is determined according to building height, ratchet for upper and lower yoke transfers loads to guide rail, and then is delivered in embedded part system.
5. cable stayed bridge leaning tower hydraulic climbing mould construction method according to claim 1, it is characterized in that: hydraulic system comprises: hydraulic pump, oil cylinder, upper and lower Commutating box, hydraulic pump and oil cylinder provide lifting drive to whole climbing form system, upper and lower Commutating box is the parts carrying out power transmission between climbing frame (3) and guide rail (5), change the ratchet direction of upper and lower Commutating box, realize the power and energy promoting climbing frame (3) and guide rail (5).
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| CN201210402842.0A CN102900022B (en) | 2012-10-22 | 2012-10-22 | Cable stayed bridge leaning tower hydraulic climbing mould construction method |
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| CN201210402842.0A CN102900022B (en) | 2012-10-22 | 2012-10-22 | Cable stayed bridge leaning tower hydraulic climbing mould construction method |
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| CN102900022B true CN102900022B (en) | 2015-09-30 |
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