CN106592432B - A kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled - Google Patents
A kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled Download PDFInfo
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- CN106592432B CN106592432B CN201611067126.6A CN201611067126A CN106592432B CN 106592432 B CN106592432 B CN 106592432B CN 201611067126 A CN201611067126 A CN 201611067126A CN 106592432 B CN106592432 B CN 106592432B
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- bent cap
- prefabricated bent
- prefabricated
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- side housing
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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
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
Abstract
A kind of entitled huge prefabricated bent cap shell segmentation construction method of installation of thin-walled of the present invention.Belong to Coping Construction technical field.It mainly solves the problems, such as easily to damage thin-wall construction when existing huge thin-walled Coping Construction has lifting.It is mainly characterized by：(1) prefabricated bent cap middle casing Hoisting Position is determined when prefabricated, and twice is set to strengthen partition wall；(2) prefabricated bent cap side housing special hanger is installed in advance；(3) transported from precasting yard to lifting scene；(4) base-supporting stent is mounted on pier stud；(5) using central block thin-walled as permanent template, assembling reinforcement and casting concrete, the bent cap interlude being integrally formed with pier shaft；(6) cantilever support is symmetrically installed on bent cap interlude；(7) left and right prefabricated bent cap side housing is lifted into respectively on corresponding cantilever support；(8) prefabricated bent cap side housing is adjusted using hydraulic pressure adjustment system.The installation connected present invention is mainly used for side housing with the wet seam of middle casing or shear connector match the installation of prefabricated connection.
Description
Technical field
The invention belongs to Coping Construction technical field, specifically a kind of huge prefabricated bent cap shell segmentation installation side of thin-walled
Method.
Background technology
Usual Coping Construction is generally real using poured in place concrete or integral prefabricated rear lifting construction method in place
It is existing.With constantly advancing for construction activity technology, a kind of novel utilization armored concrete thin-walled makees permanent mould
The huge construction method of bent cap of plate（Patent of invention CN102767141B）It is applied in city.The construction method is by prefabricated dress
With being combined with cast-in-place, permanent formwork is used as by prefabricated reinforced concrete thin-wall construction, is poured in it after lifting is in place
Concrete can ensure to meet elevating capacity, site environment and structure beauty simultaneously.
Since the bent cap scale of construction is huge, municipal construction site condition limits in order to balance, considers the elevating capacity of lifting equipment,
The weight of bent cap shell must not be overweight, the very thin thickness of bent cap shell in the case where shape determines.The huge prefabricated bent cap shell of thin-walled point
For three sections of constructions, the appearance and size of middle casing reaches 17.3M（It is long）*3.5M（It is wide）*4.5M（It is high）, the wall thickness of housing is only
0.25M, weight reach 136t, and side housing is laid out in flying wing type, and appearance and size reaches 13.9M（It is long）*3.5M（It is wide）*4.5M
（It is high）, weight reaches 92t, the wall thickness only 0.25M of housing.The heavy difficult point of huge thin-walled Coping Construction is：（1）During lifting easily
Thin-wall construction is damaged；（2）It needs to be adjusted its position after the lifting of bent cap shell is in place, reaches design position, adjust
Required precision is higher
Invention content
The present invention for above-mentioned construction problem propose it is a kind of to bent cap shell carry out local strengthening ensure lift intensity and
Middle casing is installed using base-supporting stent, the prefabricated bent cap shell segmentation installation of huge thin-walled of cantilever support installation side housing is applied
Work method.
The present invention technical solution be：A kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled, feature
It is to include following construction and installation step：
(1) when precasting yard makes prefabricated bent cap middle casing, prefabricated bent cap middle casing Hoisting Position is determined, and at this
Hoisting Position setting twice strengthen partition wall, strengthen the corresponding hoisting point position embedded steel tube of partition wall, explosion-proof muscle and reserving hole for pre-
Bent cap middle casing lifting processed is passed through and is fixed with fining twisted steel；
(2) in the prefabricated bent cap side housing dress beam of precasting yard, prefabricated bent cap side housing special hanger is installed in advance；It is prefabricated
Bent cap side housing special hanger uses base-supporting, and Hoisting Position is located on the gravity structure supporting point of prefabricated bent cap side housing；
(3) prefabricated bent cap middle casing and prefabricated bent cap side housing are transported from precasting yard respectively using hydraulic pan conveyer
It is defeated live to lifting；
(4) first base-supporting stent is mounted on pier stud, then pass through prefabricated bent cap middle casing special hanger using truck crane
Prefabricated bent cap middle casing is mounted on base-supporting stent, and it is prefabricated to pass through the adjustment system call interception of the hydraulic pressure on base-supporting stent
The absolute altitude of bent cap middle casing and position；
(5), using central block thin-walled as permanent template, the assembling reinforcement in central block thin-walled reserves permanent prestressed pore passage, so
After-pouring concrete, the bent cap interlude that it is made to be integrally formed with pier shaft；
(6) cantilever support is symmetrically installed on bent cap interlude, and cantilever support is lifted by prefabricated bent cap middle casing
It is anchored at fining twisted steel on the bent cap interlude of construction completion；
(7) using truck crane, by prefabricated bent cap, the housing when housing special hanger is by left and right prefabricated bent cap is lifted into respectively
On corresponding cantilever support；
(8) after left and right two sections prefabricated bent cap side housing whole rigging outs, system is adjusted using the hydraulic pressure on pole bracket
Prefabricated bent cap side housing is adjusted.
The (2), (7) the prefabricated bent cap side housing special hanger described in step is by lower frame in the technical solution of the present invention
Frame, level-one lifting fining twisted steel, distributed equalizer, heavy shackle, lifting iron chains, screw-thread steel connector, two level lifting essence
Roll screw-thread steel, upper frame, lifting steel wire rope composition.Flexural pivot is set in this special hanger on lower frame for eliminating side housing bottom
The horizontal component on inclined-plane.As described in (2) step, level-one hoisting thread steel, lower frame, distribution are installed in advance in precasting yard
Balance beam, and 1.2 times that pre- tensioning conducts oneself with dignity to bent cap side housing are carried out to level-one hoisting thread steel to check the strong of concrete structure
Degree, avoids going wrong in hoisting process.Setting flexibility is hung between distributed equalizer and two level lifting fining twisted steel
Iron chains is filled, can effectively eliminate the horizontal force in hoisting process prevents the thin-wall construction of side housing from damaging.It is set on upper frame horizontal
To hydraulic adjustment device and longitudinal hydraulic adjustment device accurately to adjust the position of side housing.Upper framework upper setting lifting lifting lug
For connecting the hoisting rig of crane to realize the lifting of side housing.
In the technical solution of the present invention the (4) the middle casing special hanger described in step by fining twisted steel group
Part, level-one distribution spandrel girder, heavy shackle, level-one lifting steel wire rope, two level distribution spandrel girder, two level lifting steel wire rope group
Into.In this special hanger fining twisted steel component by the weight of middle casing from strengthen partition wall it is vertical be transmitted to level-one distribution
On spandrel girder, structural failure of the horizontal component to middle casing is avoided, while when installing this fining twisted steel component, to essence
Roll that screw-thread steel carries out that pre- tensioning is conducted oneself with dignity to bent cap housing 1.2 times are avoided with checking the intensity of concrete structure in hoisting process
In go wrong.It is designed by two-stage distributed girder structures, middle casing dead weight is transmitted on crane hook, so as to
Realize the lifting of middle casing.
In the technical solution of the present invention the (4) the base-supporting stent described in step by clamping stent, adjustment frame and
Hydraulic pressure adjustment system composition, clamps stent and adjustment frame into up-down structure.Its principle is：It is recessed that four rectangles are reserved on pier stud
Slot is used to clamp the positioning of stent, while ensures the installed height mark of middle casing.Adjustment frame, which is placed on, to be clamped on stent, adjusts frame
Setting is used to adjust the absolute altitude of middle casing there are four vertical jack on frame；Carriage is designed between upper and lower frames and is set
Hydraulic cylinder drives to adjust middle casing plan-position as power.Four vertical jack for adjusting stent use three liquid
Press pump stand control, using the principles of 4 stress, 3 points of balances, it is ensured that middle casing be not in during installing and adjusting by
The indefinite situation of power is so as to ensure structure safety.Stent surrounding is clamped to be provided with for operation hydraulic cylinder progress middle case
The workbench of mould adjustment.
The (6), (8) the cantilevered described in step includes cantilever beam, supporting leg, anchoring spiral shell in the technical solution of the present invention
Line steel forms；The position of housing when the main function of cantilever support is subject to the dead weight in housing and adjusts.Its principle is：
When carrying out step (5) construction middle casing, bury by anchoring backing plate, the explosion-proof anchor formed.It by supporting leg and is hanged on ground
Arm beam is assemblied together, and is installing cantilever support using crane, finish rolling spiral shell is used after cantilever beam is lifted into design position
Line steel makes anchor force reach 1.2 times of construction load by together with the anchoring of cantilever beam and bent cap interlude, by pre- tensioning, so as to
Ensure construction safety.Since bent cap interlude has horizontal slope, pad pier is pre-set in supporting leg corresponding position to ensure the water of cantilever beam
It is flat.Housing lengthwise position adjustment track in side is provided on cantilever beam, by with longitudinal hydraulic pressure on aforementioned side housing special hanger
Adjustment oil cylinder cooperation can adjust the lengthwise position of side housing.
By the present invention in that with truck crane combination base-supporting stent and cantilever support, then coordinate special on middle casing set
The reinforcement partition wall of meter and prefabricated bent cap side housing special hanger solve the intensity of the prefabricated bent cap shell of huge thin-walled, adjustment essence
The construction problems such as degree, safety.
Construction method of the present invention can be used to the installation that side housing is connected with the wet seam of middle casing, it can also be used to side housing
The installation of prefabricated connection is matched with middle casing shear connector.
Description of the drawings
Fig. 1 is that the prefabricated bent cap shell of huge thin-walled installs total schematic diagram.
Fig. 2 is that prefabricated bent cap middle casing strengthens partition wall schematic diagram.
Fig. 3 is the A-A views of Fig. 2.
Fig. 4 is prefabricated bent cap middle casing scheme of installation one.
Fig. 5 is prefabricated bent cap middle casing scheme of installation two.
Fig. 6 is prefabricated bent cap side housing scheme of installation one.
Fig. 7 is prefabricated bent cap side housing scheme of installation two.
Fig. 8 is prefabricated bent cap side housing scheme of installation three.
Fig. 9 is prefabricated bent cap side housing scheme of installation four.
Figure 10 is the prefabricated bent cap side housing special hanger schematic diagram of the present invention.
Figure 11 is the prefabricated bent cap side housing special hanger partial side view of the present invention.
Figure 12 is the prefabricated bent cap middle casing special hanger schematic diagram of the present invention.
Figure 13 is base-supporting stent vertical view.
Figure 14 is the cross-section diagram of base-supporting stent.
Figure 15 is cantilever support schematic diagram.
In figure：1. pier stud；2. base-supporting stent；3. bent cap interlude；4. prefabricated bent cap side housing；5. cantilever support；
6. prefabricated bent cap side housing special hanger；7. the wet seam in bent cap side stage casing；8. prefabricated bent cap middle casing；9 strengthen partition wall；10.
Prefabricated bent cap middle casing lifting fining twisted steel；11. prefabricated bent cap middle casing special hanger；12. cantilever support anchor
It is fixedly mounted with and puts；21. clamp stent；22. the traversing adjustment mechanism of middle casing；23. middle casing elevation regulation mechanism；24. middle case
Body vertical shift adjustment mechanism；25. adjust frame；26 workbenches；51 cantilever beams；52. supporting leg；53. anchor screw-thread steel；54. work
Platform；61. lower frame；61a. flexural pivots；62. level-one lifts fining twisted steel；63. distributed equalizer；64. heavy shackle；65.
Lift iron chains；66. screw-thread steel connector；67. two level lifts fining twisted steel；Frame on 68.；68a. longitudinal directions hydraulic pressure adjustment dress
It puts；68b. transverse hydraulic adjusting apparatus；69 lifting steel wire ropes；111. fining twisted steel component；112. level-one distribution load-bearing
Beam；113. heavy shackle；114. level-one lifts steel wire rope；115. two level distribution spandrel girder；116. two level lifts steel wire rope.
Specific embodiment
The equipment for further illustrating the present invention the technological process of construction method with reference to the figures above and using.
Needed used in the prefabricated bent cap shell segmentation construction method of installation of the huge thin-walled of the present invention the main construction equipment used and
Construction process is as shown in Figure 1, including following construction and installation step.
(1) when precasting yard makes prefabricated bent cap middle casing 8, determined among prefabricated bent cap by scientific algorithm design
8 Hoisting Position of housing, and the reinforcement partition wall 9 of two 250mm is set in the Hoisting Position, the spacing of two reinforcement partition walls 9 is
3250mm strengthens 9 corresponding hoisting point position embedded steel tube of partition wall, explosion-proof muscle and reserving hole and is lifted for prefabricated bent cap middle casing
It is passed through and is fixed with fining twisted steel 10, as shown in Figure 2 and Figure 3, effect is that prefabricated bent cap middle casing is strengthened, really
There is not structural failure in the housing when protecting lifting, while provides the lower anchored position of lifting screw-thread steel for lifting.
(2) when the prefabricated bent cap side housing 4 of precasting yard fills beam, prefabricated bent cap side housing special hanger 6 is installed in advance.In advance
Bent cap side housing special hanger 6 processed uses base-supporting, and Hoisting Position is located at the gravity structure supporting point of prefabricated bent cap side housing 4
On, supporting point position passes through scientific algorithm, it is ensured that structure safety of the side housing in hoisting process.
The structure of prefabricated bent cap side housing special hanger 6, prefabricated bent cap side housing Special-purpose hanger are further illustrated with reference to Figure 10
Tool 6 includes lower frame 61, level-one lifting fining twisted steel 62, distributed equalizer 63, heavy shackle 64, lifting iron chains 65, spiral shell
Line steel connector 66, two level lifting fining twisted steel 67, upper frame 68, lifting steel wire rope 69.Wherein lower frame 61, level-one lifting
Fining twisted steel 62, distributed equalizer 63 are in the advance installing component of precasting yard, and installation is complete to be hung after upper-part to level-one
Dress fining twisted steel 62 carries out pre- tensioning to examine the stability of structure and reliability.Due to 4 bottom of prefabricated bent cap side housing into
Certain gradient, therefore lower frame accordingly sets the pad pier of different height to ensure that the spatial position of prefabricated bent cap side housing 4 is expired
Sufficient construction requirement sets flexural pivot 61a to ensure that housing 4 bottom stress in prefabricated bent cap side perpendicular to contact surface, avoids in pad pier
Concrete surface damages.It, can be with by one section of flexible lifting iron chains 65 being set to connect between lower frame 61 and upper frame 68
It effectively reduces prefabricated bent cap side housing 4 in hoisting process and generates larger shaking, ensure Hoisting Security.Upper frame 68 and lower frame
It is connected between 61 by screw-thread steel connector 66.There is longitudinal hydraulic adjustment device 68a to can be used for adjusting side shell on upper frame 68
The lengthwise position of body.Longitudinal hydraulic adjustment device 68a one end is connected on frame 68, and other end is connected to cantilever support
Above 5, upper movement of the frame 68 on cantilever support 5 is pushed by hydraulic cylinder to realize that vertical shift adjusts.
Further illustrate that housing 4 is lateral when housing special hanger 6 adjusts prefabricated bent cap by prefabricated bent cap with reference to Figure 11
The principle of position.Upper frame 68 is divide into upper part and lower part, can by transverse hydraulic adjusting apparatus 68b drivings between upper and lower two parts
With relatively transverse movement, so as to fulfill the adjustment of 4 lateral position of prefabricated bent cap side housing.
(3) using hydraulic pan conveyer respectively by prefabricated bent cap middle casing 8 and prefabricated bent cap side housing 4 from precasting yard
Transport lifting scene.
(4) first base-supporting stent 2 is lifted using truck crane and be fixed on above pier stud 1, as shown in Figure 4.As shown in figure 5,
Prefabricated bent cap middle casing special hanger 11 is installed in advance in precasting yard and lifts prefabricated bent cap middle casing lifting finish rolling
Screw-thread steel.Tensioning is carried out with fining twisted steel 10 to prefabricated bent cap middle casing lifting, pretensioned power reaches bent cap weight
More than twice.Load is applied in advance on prefabricated bent cap middle casing 8 by pre- tensioning, can in time be found in prefabricated bent cap
Between housing 8 it is prefabricated in every defect and solve, avoid lifting when go wrong, improve working security.Using big
Prefabricated bent cap middle casing 8 is lifted on base-supporting stent 2 by type truck crane.
Further the structure of base-supporting stent 2 is illustrated with reference to Figure 13 and Figure 14.As shown in figure 13, base-supporting stent
2 are adjusted by clamping stent 21, the traversing adjustment mechanism 22 of middle casing, middle casing elevation regulation mechanism 23, middle casing vertical shift
Mechanism 24, adjustment frame 25, workbench 26 form.The installation that groove is used to clamp stent 21 is reserved on pier stud 1, clamps branch
Frame 21 divides for two parts, is linked together by fining twisted steel.It clamps and adjustment frame 25, middle casing is provided on stent 21
Traversing adjustment mechanism 22, middle casing vertical shift adjustment mechanism 24, is installed in adjustment frame at middle casing elevation regulation mechanism 23
On, four vertical hydraulic jacks wherein in middle casing elevation regulation mechanism 23 are using " four-point supporting, 3 points of balances "
Principle ensures that prefabricated 8 stress of bent cap middle casing is clear and definite.It can make the sky of preform lid beam middle casing 8 using above-mentioned adjustment mechanism
Between position make its site error be no more than 5mm.
The structure of prefabricated bent cap middle casing special hanger 11, prefabricated bent cap middle casing are further illustrated with reference to Figure 12
Special hanger 11 lifts steel wire rope by fining twisted steel component 111, level-one distribution spandrel girder 112, heavy shackle 113, level-one
114th, two level distribution spandrel girder 115, two level lifting steel wire rope 116 form.Fining twisted steel component 111 is strengthened by being embedded in
The built-in fitting of 9 the inside of partition wall links together prefabricated bent cap middle casing 8 and level-one distribution spandrel girder 112, passes through finish rolling
The pre- tensioning of screw-thread steel component 111 can check intensity and the safety of prefabricated bent cap middle casing special hanger 11.By soft
Property level-one lifting steel wire rope 114 can effectively eliminate the swing of prefabricated bent cap middle casing 8 in hoisting process.It is two-stage distributed
The structure design of spandrel girder ensures prefabricated bent cap middle casing 8 each suspension centre uniform stressed in hoisting process, prevents certain point
Structural failure caused by overload.The angle of each steel wire rope is 60 °.Two level lifting steel wire rope 116 is directly connected to the suspension hook of crane.
(5), using prefabricated 8 central block thin-walled of bent cap middle casing as permanent template, the assembling reinforcement in central block thin-walled is reserved
Permanent prestressed pore passage, then casting concrete, the bent cap interlude 3 that it is made to be integrally formed with pier shaft, preform lid of constructing later
Beam side housing 4, the cantilever support anchor 12 of the first pre-buried cantilever support 5 before pouring of bent cap interlude 3 is for follow-up
Construction usage.
(6) cantilever support 5 is symmetrically installed on bent cap interlude 3, and cantilever support 5 passes through prefabricated bent cap middle casing
Lifting is anchored at fining twisted steel on bent cap interlude 3.
It elaborates with reference to Figure 15 to cantilever support 5, cantilever support 5 includes cantilever beam 51, supporting leg 52, anchoring spiral shell
Line steel 53 and workbench 54 form.Cantilever beam 51 is the main bearing member of cantilever support 5, bears prefabricated bent cap side shell
The total weight of body 4, cantilever beam 51 are mounted on by supporting leg 52 and anchoring screw-thread steel 53 on bent cap interlude 3.Due in bent cap
Between section upper surface have certain gradient, the supporting leg of supporting leg 52 is designed to different height to ensure that cantilever beam 51 is horizontal.Anchor screw thread
Steel 53 is connect with cantilever support anchor 12 of the pre-plugged in bent cap interlude 3, so as to fulfill cantilever support 5
It is fixed, theoretically only need the anchoring screw-thread steel 53 of 5 rearmost end of cantilever support that can bear the construction of prefabricated bent cap side housing 4
Load, in addition two groups of anchoring screw-thread steels 53 play redundant safety.Cantilever support 5 coordinates the aforementioned longitudinally adjusted mechanism of side housing
68a can adjust the lengthwise position of side housing.
The installation process of cantilever support 5 as shown in Figure 6, Figure 7, using truck crane slings cantilever support 5, laterally moves
Move the top of bent cap interlude 3, by the anchor hole on the anchor hole alignment bent cap interlude 3 on cantilever support 5, then under
It falls, cantilever support 5 is anchored on bent cap using prefabricated bent cap middle casing lifting fining twisted steel, to fining twisted steel
Pre- tensioning is carried out, stretching force, which reaches construction, to be needed to bear load twice, and bent cap interlude 3 and cantilever support 5 are carried out in advance
Load test, so that it is guaranteed that shell 4 body construction in prefabricated bent cap side is safe.
(7) using truck crane, by prefabricated bent cap, the housing 4 when housing special hanger 6 is by left and right prefabricated bent cap lifts respectively
Onto corresponding cantilever support 5.
Bent cap processed while housing 4 hoisting process as shown in figure 8, in advance precasting yard install prefabricated bent cap while housing Special-purpose hanger
The lower half portion of tool 6, prefabricated bent cap side housing special hanger 6 use base-supporting, and lower half portion is carried out pre- using fining twisted steel
Tensioning, stretching force reach 2 times of side case weight.Prefabricated 6 top half of bent cap side housing special hanger is connected using truck crane
And lower half portion.After checking that connection is errorless, prefabricated bent cap side housing 4 is sling using truck crane.Prefabricated bent cap side housing 4 is horizontal
Move on at cantilever support 5 and cantilever support 5 made to pass through prefabricated bent cap side housing 4, it is substantially in place after by prefabricated bent cap side shell
Body 4, which is fallen, makes prefabricated 6 top half of bent cap side housing special hanger be supported on 5 top of cantilever support.
(8) after the whole rigging outs of left and right two sections of prefabricated bent cap sides housing 4, on aforementioned pole bracket 5 hydraulic pressure tune is used
Whole system is adjusted prefabricated bent cap side housing 4.
The prefabricated bent cap side housing 4 for lifting other side is as shown in Figure 9.Treat that the prefabricated bent cap side housing 4 on both sides has lifted
Into later, adjusted using the spatial position of horizontal hydraulic pressure jack and the prefabricated bent cap side housing 4 of vertical hydraulic jack pair
It is whole, it is ensured that volumetric position error is within 5mm.
Claims (5)
1. a kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled, it is characterised in that including following construction and installation step：
(1) prefabricated bent cap middle casing is made in precasting yard（8）When, determine prefabricated bent cap middle casing（8）Hoisting Position, and
Hoisting Position setting twice strengthen partition wall（9）, strengthen partition wall（9）Corresponding hoisting point position embedded steel tube, explosion-proof muscle and preformed hole
Hole is used for prefabricated bent cap middle casing lifting fining twisted steel（10）It passes through and fixes；
(2) in the prefabricated bent cap side housing of precasting yard（4）When filling beam, by prefabricated bent cap side housing special hanger（6）Installation in advance；In advance
Bent cap side housing special hanger processed（6）Using base-supporting, Hoisting Position is located at prefabricated bent cap side housing（4）Gravity structure branch
In support point；
(3) using hydraulic pan conveyer respectively by prefabricated bent cap middle casing（8）With prefabricated bent cap side housing（4）From precasting yard
Transport lifting scene；
(4) truck crane is first used by base-supporting stent（2）Mounted on pier stud（1）On, then pass through prefabricated bent cap middle casing Special-purpose hanger
Tool（11）By prefabricated bent cap middle casing（8）Mounted on base-supporting stent（2）On, and pass through base-supporting stent（2）On hydraulic pressure
Adjust the prefabricated bent cap middle casing of system call interception（8）Absolute altitude and position；
(5), using central block thin-walled as permanent template, the assembling reinforcement in central block thin-walled is reserved permanent prestressed pore passage, is then poured
Concrete is built, the bent cap interlude that it is made to be integrally formed with pier shaft；
(6) cantilever support is symmetrically installed on bent cap interlude, and cantilever support passes through prefabricated bent cap middle casing lifting essence
Screw-thread steel is rolled to be anchored on the bent cap interlude that construction is completed；
(7) prefabricated bent cap side housing special hanger is passed through using truck crane（6）By left and right prefabricated bent cap side housing（4）It lifts respectively
To corresponding cantilever support（5）On；
(8) left and right two sections of prefabricated bent cap sides housing（4）After whole rigging outs, pole bracket is used（5）On hydraulic pressure adjustment system
System is to prefabricated bent cap side housing（4）It is adjusted.
2. a kind of huge prefabricated bent cap shell segmentation construction method of installation of thin-walled according to claim 1, it is characterised in that：The
(2), the (7) prefabricated bent cap side housing special hanger described in step（6）By lower frame, level-one lifting fining twisted steel, distribution
Equalizer, heavy shackle, lifting iron chains, screw-thread steel connector, two level lifting fining twisted steel, upper frame, lifting steel wire rope group
Into；Flexural pivot is set on lower frame；Flexible lifting iron chains is set between distributed equalizer and two level lifting fining twisted steel；On
Transverse hydraulic adjusting apparatus and longitudinal hydraulic adjustment device are set on frame；Upper framework upper setting lifting lifting lug.
3. a kind of huge prefabricated bent cap shell segmentation construction method of installation of thin-walled according to claim 1 or 2, feature exist
In：The (4) prefabricated bent cap middle casing special hanger described in step（11）It is held by fining twisted steel component, level-one distribution
Weight beam, heavy shackle, level-one lifting steel wire rope, two level distribution spandrel girder, two level lifting steel wire rope composition.
4. a kind of huge prefabricated bent cap shell segmentation construction method of installation of thin-walled according to claim 1 or 2, feature exist
In：The (4) base-supporting stent described in step（2）It is made of clamping stent, adjustment frame and hydraulic pressure adjustment system, clamps branch
Frame and adjustment frame are into up-down structure；Adjustment frame, which is placed on, to be clamped on stent, adjusts vertical jack there are four being set on frame；
It clamps and is designed with carriage between stent and adjustment frame；Stent surrounding is clamped to be provided with for the progress of operation hydraulic cylinder
The workbench of intermediate shell mold adjustment.
5. a kind of huge prefabricated bent cap shell segmentation construction method of installation of thin-walled according to claim 1 or 2, feature exist
In：(6), the (8) cantilever support described in step（5）Including cantilever beam, supporting leg, anchoring screw-thread steel composition.
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| CN201611067126.6A CN106592432B (en) | 2016-11-29 | 2016-11-29 | A kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled |
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| CN201611067126.6A CN106592432B (en) | 2016-11-29 | 2016-11-29 | A kind of prefabricated bent cap shell segmentation construction method of installation of huge thin-walled |
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| CN107237270A (en) * | 2017-07-18 | 2017-10-10 | 中交第二航务工程局有限公司 | A kind of construction method of girder construction |
| CN110093862B (en) * | 2019-05-31 | 2024-04-05 | 浙江数智交院科技股份有限公司 | Three-working-face bridge girder erection machine capable of realizing longitudinal and transverse assembly and bent cap non-channel segment assembly construction method |
| CN110399689B (en) * | 2019-07-31 | 2023-05-09 | 中铁十一局集团桥梁有限公司 | Method and device for adjusting capping beam edge shell model, computer equipment and storage medium |
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