CN110396941A - A kind of bridge pier column construction system and construction method - Google Patents
A kind of bridge pier column construction system and construction method Download PDFInfo
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- CN110396941A CN110396941A CN201910779265.9A CN201910779265A CN110396941A CN 110396941 A CN110396941 A CN 110396941A CN 201910779265 A CN201910779265 A CN 201910779265A CN 110396941 A CN110396941 A CN 110396941A
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- jacking apparatus
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- pole
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 230000006641 stabilisation Effects 0.000 claims abstract description 3
- 238000011105 stabilization Methods 0.000 claims abstract description 3
- 230000009194 climbing Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 18
- 238000009415 formwork Methods 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000003818 cinder Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
Abstract
The invention discloses a kind of bridge pier column construction system and construction method, when system is applied to have the pier stud of inner cavity to construct, including the internal model platform support in inner template and its inner cavity, the external mold platform support of exterior sheathing and its periphery；When pier stud applied to no inner cavity is constructed, the external mold platform support including exterior sheathing and its periphery；It is reserved with template between internal model platform support and inner template, between external mold platform support and exterior sheathing and promotes channel.For the pier stud construction for having inner cavity, internal model platform support and external mold platform support are linked as entirety by multiple brackets that climb, and for the pier stud construction of no inner cavity, the opposite side of external mold platform support is linked as entirety by multiple brackets that climb；The two sides of the corresponding bracket that respectively climbs of the bottom building body of pier stud are embedded with pole-climbing, it climbs to correspond on bracket and realizes that inside and outside mould platform support synchronizes at pole-climbing by jacking apparatus and climb or the stabilization of external mold platform support is climbed, the hoisting apparatus being horizontally movable is provided on the bracket that climbs for overmolded.
Description
Technical field
The present invention relates to a kind of bridge construction system, especially a kind of bridge pier column construction system and construction method.
Background technique
In railway or highway bridge high pier construction, there are three types of commonly used forms of construction work, is creeping formwork respectively, sliding formwork, turns over
Mould construction.Wherein, climbing formwork for construction operation safety is reliable, and wind loading rating is strong, but climbing formwork for construction is at high cost, operating efficiency is relatively low,
Presentation quality is general；Slding form operation speed is fast, but labor intensity is big, and concrete surface quality is poor；Over-form construction coagulation
Native surface quality is high, but long construction period, and wind loading rating is poor, and danger coefficient is high.
To solve the above-mentioned problems, ZL201510037943.6 discloses one kind and turns over construction system and construction party from cunning of climbing
Method, its main feature is that on sliding-mode structure, outer mould holder disposably climbs the height of a section to be poured, then will with the bracket that climbs
External mold formwork hoisting is to wait pour section；Internal model uses slding form operation.This construction method solves bridge pier appearance to a certain extent
The problem of face quality, but there is problems.
Firstly, the inside and outside mould of the structure of the patent disclosure is mutually indepedent, and the form of construction work of internal model sliding formwork, external mold overmolded
Form of construction work, since pier shaft concreting is regardless of inside and outside, according to specification GB50113-2005, " sleiding form engineering technology is advised
Model " and the middle regulation of newest slding form operation specification exposure draft GB50113-2017 " sleiding form engineering legislation ", it is sliding
Construct each template climb altitude of mould is 200-400mm, and external mold as over-form construction (is led to pouring a concrete segment
Often it is 2m) it climbs again later, therefore inside and outside mould is unable to reach synchronization, and in big section pier construction, template is usually wanted
It wears to pull rod, asynchronous will lead to of inside and outside mould can not be to drawing or frequently dismounting to pull rod, so as to keep template generation larger
Deformation even misplaces.
Secondly, the patent " semi-automatic rollover device includes jack, by nuzzle in advance in casting concrete thousand
Jin top pole-climbing is fixed, and the connection of connecting sliding rail cross bar one end and jack, the other end connect main upright bar ".Obviously, this structure
It can make pole-climbing unbalance loading, the load of outer mould holder transmitting can generate moment of flexure to pole-climbing, to make pole-climbing unstability, be easy safety problem.
Third, in big section high pier construction, the size in pier shaft section and the weight of platform support are directly proportional, platform
The weight of bracket is directly proportional to the load that pole-climbing is born, and the bearing capacity of come to nothing length and the pole-climbing of pole-climbing is inversely proportional, and climbs
The sectional dimension of bar and the bearing capacity of pole-climbing are directly proportional.Pole-climbing will be embedded in concrete, and the sectional dimension of pole-climbing cannot be too
Greatly, but the length requirement that comes to nothing is big, bearing capacity require it is high.The patent is not obviously able to satisfy above-mentioned requirements using single pole-climbing.
4th, existing high pier concrete pouring construction is all the synchronism of process of being climbed by manual control, is climbing
Artificial level measurement and review are carried out after one stage, continues to climb after adjusting absolute altitude, and measurement frequent in this way generates accumulative inclined
The risk of difference increases, and increases the labor intensity of worker, influences construction efficiency.
Summary of the invention
It is an object of the invention in view of the above-mentioned problems, it is fast in conjunction with slding form operation speed, over-form construction concrete quality is good
The advantages of, provide a kind of inside and outside mould platform support can synchronism stability climb；Template is promoted to over-form construction；Pole-climbing is come to nothing highly
Greatly, the bridge pier column construction system and construction method that large carrying capacity, total height of climbing can be detected and be adjusted automatically.
This bridge pier column construction system provided by the invention, when applied to the pier stud construction for having inner cavity, including inner template
And the internal model platform support in inner template inner cavity, exterior sheathing and its peripheral external mold platform support；Pier stud applied to no inner cavity
When construction, the external mold platform support including exterior sheathing and its periphery；Between internal model platform support and inner template, external mold platform support
It is reserved with template between exterior sheathing and promotes channel.For the pier stud construction for having inner cavity, the internal model platform support and external mold
It is linked as entirety by multiple brackets that climb between platform support, is constructed for the pier stud of no inner cavity, the external mold platform support
Entirety is linked as by multiple brackets that climb between opposite side；Inside at the corresponding backing positions that respectively climb of the bottom building body of pier shaft and
Outside is embedded with pole-climbing respectively, and the jacking apparatus that Direct Action Type is provided at pole-climbing is corresponded on the bracket that climbs, and can pass through jacking apparatus
Stretching motion realize its climbing in pole-climbing, jacking apparatus is realized that inside and outside mould platform support synchronizes and is climbed along climbing for pole-climbing
It rises or the stabilization of external mold platform support is climbed, the hoisting apparatus being horizontally movable is provided on the bracket that climbs for overmolded.
In a kind of embodiment of above system, the bracket that climbs includes two F type brackets being arranged symmetrically and two F type branch
Upper beam and lower beam between frame.
In a kind of embodiment of above system, the vertical beam of the F type bracket includes the lower section being detachably connected and upper
Section.
In a kind of embodiment of above system, the lower section lower end of the F type bracket vertical beam, which is vertically connected with to stretch to, to be built
The triatic stay of building body, the end of triatic stay is connected with can be along the back-up roller wheel that building body scrolls up and down.
In a kind of embodiment of above system, construct for the pier stud for having inner cavity, the F type bracket and inside and outside template
Between be respectively provided with dismountable anti-fall wind-resistant pull rod；For the pier stud construction of no inner cavity, between the F type bracket and exterior sheathing
Dismountable anti-fall wind-resistant pull rod is set.
In a kind of embodiment of above system, the jacking apparatus is punching oil cylinder, and piston rod and cylinder sleeve have axis
To centre bore, the corresponding axial central hole in cylinder sleeve bottom surface and piston rod top surface is respectively fixed with clamping device.
In a kind of embodiment of above system, pole-climbing is any one in round tube, round bar, square tube or square steel,
Upper end is passed through from the lower beam of the F type bracket, and the jacking apparatus is set in pole-climbing, by the clamping device by pole-climbing
Clamping, bottom surface and the lower beam of jacking apparatus are fixed as one.
In a kind of embodiment of above system, it is flat that the bottom of the inside and outside mould platform support is connected separately with suspension type
Platform bracket, it is corresponding on inside and outside mould platform support and suspension type platform support respectively to pour segment to be provided with turnover walking flat
Platform.
It is provided by the invention this to utilize the above-mentioned method stated system and inner cavity bridge pier column have to construct, including following step
It is rapid:
(1) bottom bridge pier pouring construction, by setting position two pole-climbings of pre-buried each group；
(2) bracket that will respectively climb is fixed in each group pole-climbing by jacking apparatus, and is made at the telescopic rod of each jacking apparatus
In the state in place of contraction；
(3) internal model platform support and external mold platform support are fixed respectively with the bracket that climbs, and adjusts two platform supports
Absolute altitude；
(4) inside and outside mould platform support is connected and fixed with inside and outside template respectively by anti-fall wind-resistant pull rod；
(5) the reinforcing bar binding of section to be poured is carried out；
(6) anti-fall wind-resistant pull rod is removed；
(7) by after lowest level form removable scarfing cinder, make the hoisting apparatus respectively to climb on bracket by this layer of formwork hoisting to
Assembling reinforcement segment；
(8) inside and outside formwork elevation measuring and fixed inside and outside template are adjusted, connects anti-fall wind-resistant pull rod, and cover walking platform
Template promotes channel；
(9) it pours the segment and conserves；
(10) anti-fall wind-resistant pull rod is dismantled, walking platform is flipped up opening；
(11) make each jacking apparatus with inside and outside mould platform support while the segment height to be poured that climbs upwards along pole-climbing
Degree；
(12) step (4)-(11) are repeated, until completing pouring for the last one segment.
In a kind of embodiment of the above method, climb on bracket be arranged for measure single climb displacement first pass
Sensor, the second sensor for measuring its single stroke is arranged on jacking apparatus, and the first, second sensor is anti-by measurement data
It feeds controller, controller to jacking apparatus issues work order after analyzing by data；
In step (2), the current value of second sensor is recorded when the telescopic rod of each jacking apparatus bounces back, and is filled as the jacking
The zero point value of second sensor is set, the real value of second sensor subtracts the zero point value of the sensor in jacking apparatus operational process
Obtain the current stroke value S of corresponding jacking apparatus；
Climbing every time for jacking apparatus all needs to carry out the calibration of zero point value to second sensor before；
In step (11), the minimum value S of jacking apparatus single stroke is determined according to the value that second sensor measuresmin, pass through
The value of first sensor measurement determines that single climbs the maximum value H of total displacementmaxWith minimum value Hmin, by minimum value SminSuccessively with
Second sensor detects that the current stroke value S of each jacking apparatus compares, and obtains current stroke value S and the jacking of each jacking apparatus
The minimum value S of device single strokeminDifference after treatment process it is as follows:
(11.1) process of climbing is synchronous
If some or certain differences are greater than preset value 1, the biggish jacking apparatus of difference is successively made to stop working,
As the minimum value S of their current stroke value S and jacking apparatus single strokeminDifference be less than preset value 2 when, starting
These jacking apparatus are until synchronous rise a segmental height to be poured；
(11.2) judge whether to reach
The difference of total kilometres one upper deviation of setting and a lower deviation, the upper deviation and lower deviation is more maximum than in synchronous adjustment
It is worth big with the difference of minimum value；
Compare single to climb the minimum value H of total displacementminWith the lower deviation of total kilometres setting range, obtains single and climb always
The minimum value H of displacementminWith the difference of total kilometres setting lower deviation, if difference is greater than 0, total kilometres are completed；
(11.3) it levels
When jacking apparatus climb total height maximum value and minimum value difference be greater than total kilometres setting upper and lower deviation difference
When value, starting is climbed the lesser jacking apparatus of total height, until the jacking apparatus climbs the maximum value of total height and minimum value it
Difference is less than the difference of the upper and lower deviation of total kilometres setting, that is, levels.
The present invention both can be applied to the prefabricated construction of inner cavity pier stud, can also be applied to the pier stud construction of no inner cavity.Using
When having the prefabricated construction of inner cavity pier stud, it is linked as entirety by multiple brackets that climb between inside and outside die station bracket, in branch of climbing
Two hoisting apparatus, two jacking apparatus and measurement single are arranged on frame to climb the first sensor of total displacement, while in Liang Tai
Installation can measure the second sensor of its single stroke respectively on jacking apparatus, and the bracket that each climbs is pre-buried along inside and outside two
Pole-climbing climb.Compared with the prior art, having the advantage that the inside and outside mould platform support in the process that climbs passes through the bracket that climbs
Be connected as it is whole realize to synchronize climb, can avoid because unbalance loading, climb it is asynchronous caused by pole-climbing unstability the case where；In pole-climbing use,
Outer double arragement constructions, inside and outside mould platform support are linked as entirety again, can effectively share in inside and outside pole-climbing load, make pole-climbing
Bearing capacity it is bigger, come to nothing height it is higher, so as to meet the overmolded space of inner and outer template and meet Bridge High-pier construction
Demand；After the concrete for having poured a segment, inside and outside mould passes through hoisting apparatus using overmolded construction technology, is pouring
During concrete to demoulding, exterior sheathing will not move, will not misplace, also make the strengthening process of concrete will not be because of template
Movement and deform, that is, when demoulding, concrete strength is high when demoulding compared with sliding formwork, and can all clear up template table after demoulding every time
Face, it is ensured that the surface quality of concrete；The sensor of two different locations can Real-time Feedback jacking apparatus single stroke and
It climbs total displacement, and can mutually correct, it is ensured that the synchronism climbed；Climb operation can be completed by one man operation, completion of climbing
Manual review's absolute altitude is only needed afterwards, without artificial follow-up measurement and adjusting elevation；Cost of labor is low.Pier stud applied to no inner cavity is pre-
When processed, due to being not necessarily to inner template and internal model platform support, exterior sheathing and external mold platform support are only needed, by pair of external mold platform support
Entirety is linked as by the bracket that climbs between side, other references have the pier stud prefabricated construction of inner cavity to operate.
Detailed description of the invention
Fig. 1 is the axis side structure schematic diagram of one embodiment of the invention.
Fig. 2 is the schematic top plan view of the present embodiment.
Fig. 3 is the schematic side view of Fig. 2.
Fig. 4 is that sensor is measured apart from schematic diagram in Fig. 3.
Fig. 5 is bottom formwork hoisting initial position schematic diagram.
Fig. 6 is bottom formwork hoisting schematic diagram in place.
Fig. 7 is the assembling schematic diagram of detachable hang formula platform support and external mold platform support in Fig. 1.
Fig. 8 is convertible walking platform operation schematic diagram.
Fig. 9 is that F type bracket lower part segment schematic diagram is installed in building body inside portion when bottom is constructed.
Figure 10 is that the present invention is used for schematic diagram of the building body without internal model platform support.
Figure label:
1- inner template；2- exterior sheathing；3- internal model platform support；4- external mold platform support；
5, climb component；
51- climbs bracket；52- oil cylinder；53- hoisting apparatus；54- pole-climbing；
511-F type bracket；512- attachment beam；513- sensor mounting rail；
6- first sensor；7- second sensor；
8- walking platform；The anti-fall wind-resistant pull rod of 9-；
10- suspension type platform support；11- back-up roller wheel；
Specific embodiment
As shown in Figure 1, this bridge pier column construction system disclosed in the present embodiment, for there is the bridge pier column of inner cavity to apply
Work is respectively fixed with the inner template 1 and exterior sheathing 2 of bulk assembly in the inner side and outer side of bridge pier building body setting thickness, inside
Internal model platform support 3, the fixed external mold platform support 4 in the periphery of exterior sheathing 2 are fixed in the inner cavity that template 1 surrounds.And in inner template
The template promotion that can meet overmolded is reserved between platform support 3 and inner template 1, between external mold platform support 4 and exterior sheathing 2 respectively
Channel TD.I.e. between internal model platform support 3 and inner template 1, it is respectively kept between external mold platform support 4 and exterior sheathing 2 certain
Spacing.
Inside and outside mould platform support climbs component 5 by multiple groups as entirety, climbs to can realize to synchronize by the bracket that climbs
It rises.
The cross-sectional shape of the present embodiment bridge pier shaft is rectangle, so in internal model platform support 3 and external mold platform support 4
One group of component 5 that climbs is respectively set in the corner of four groups of corresponding sides, totally eight groups of components 5 that climb.
In conjunction with Fig. 1 to Fig. 9 can be seen that every group of the present embodiment component 5 that climbs include climb bracket 51, oil cylinder 52, rise
53 and pole-climbing 54 are set in refitting.
The bracket 51 that climbs includes that F type bracket 511, connecting cross beam 512 and sensor install vertical beam 513, two F type brackets 511
Above, lower beam relative symmetry is arranged, the length of lower beam is greater than the length of upper beam, and sensor installation vertical beam 513 is connected to
Between upper and lower crossbeam, the vertical beam of two sides F type bracket is individually fixed on internal model platform support 3 and external mold platform support 4, connection
The upper beam of F type bracket 511 and lower beam are linked together by crossbeam 512 respectively, and the first sensor 6 for feeding back total climb altitude is pacified
It fills on vertical beam 513.
Inner side and outer side of the pole-climbing 54 at corresponding 51 position of bracket of climbing of lowest level building body is symmetrically pre-buried, pole-climbing 54
Upper end is passed through from the section of stretching out of 511 lower beam of F type bracket.The pole-climbing 54 of the present embodiment uses round bar, can also according to practical situation
Select any one in round tube, square tube or square steel.
Jacking apparatus of the oil cylinder 52 as the present embodiment, piston rod and cylinder sleeve have axial center hole, piston rod top surface
Axial direction central hole corresponding with cylinder sleeve bottom surface is respectively fixed with chuck 521.Mechanical chuck and oild chuck, liquid can be selected in chuck
Chuck buyable is pressed, structure or similar structures such as clamp upper and lower in CN200720201446.6 can be used in mechanical chuck,
Make jacking apparatus by dead-weight lock in pole-climbing.
Oil cylinder 52 is set in pole-climbing 54, by chuck (preferably oild chuck) by 5 clamping of pole-climbing, the cylinder sleeve bottom surface of oil cylinder
It is fixed as one with the lower beam of F type bracket.
The second sensor 7 that its stroke can be fed back is installed, the stroke S of oil cylinder passes through the sensor feedback on oil cylinder 52.
For the hoisting apparatus 53 of the present embodiment using the wire rope hanging lift lifting/lowering trolley of outsourcing, it is installed on the upper of F type bracket
On crossbeam, and it can be moved left and right along upper beam.
The vertical beam of F type bracket 511 includes the lower section and upper segment being detachably connected, and the lower end of lower section is vertically connected with
The triatic stay of building body is stretched to, the end of triatic stay is connected with back-up roller wheel 11, and back-up roller wheel 11 can say building body or more
It rolls.
In order to meet the different construction demands for pouring segment, the bottom difference of interior die station bracket 3 and outer die station bracket 4 is removable
It unloads and is connected with suspension type platform support 10, and correspond to each layer on inside and outside mould platform support and suspension type platform support and pour segment
Turnover walking platform 8 is provided at position.Walking platen cover lives template and promotes channel when the concrete construction of segment, convenient
Construction；Walking platform, which turns over, when inside and outside formwork hoisting opens template promotion channel.
The F type bracket of two sides is connected separately with anti-fall wind-resistant pull rod 9 between inner template 1 and exterior sheathing 2 respectively, and anti-fall
It is all made of and is detachably connected between wind-resistant pull rod and inside and outside template.The quantity and connection angle of anti-fall wind-resistant pull rod 9 can be according to realities
Border it needs to be determined that, as being provided with anti-fall wind-resistant pull rod that is horizontal and being in tilted layout in Fig. 2.The effect of anti-fall wind-resistant pull rod 9 includes
Anti-fall and wind resistance.Inside, external mold platform support climb and inner and outer template lifting overmolded when, anti-fall wind-resistant pull rod is removed, is climbed
In place or lifting in place afterwards assembles anti-fall wind-resistant pull rod.
From the above as can be seen that between the inside and outside mould platform support of this system by multiple brackets that climb be linked as it is whole
Body is separately installed with jacking apparatus and hoisting apparatus, and two jacking dresses on two F type brackets that the bracket that each climbs is linked together
It sets and is held in pre-buried pole-climbing symmetrically arranged on the left and the right, hoisting apparatus can be moved left and right along the upper beam of F type bracket, pass through two tops
It rises device and realizes that the synchronism stability of inside and outside mould platform support climbs along the movement of pole-climbing, single stroke passes through second on oil cylinder
Sensor feedback can guarantee climbing in place each time in this way.The total climb altitude H of oil cylinder single passes through first on F type bracket
Sensor feedback.
When the bracket that climbs is installed, pole-climbing passes through the centre bore of oil cylinder, holds pole-climbing tightly by the chuck at its both ends, makes inside and outside
In the load transfer to pole-climbing of mould platform support.
When the bracket that climbs climbs, the anti-fall wind-resistant pull rod between inside and outside mould platform support and corresponding template is removed, then makes
Cylinder efficient, jacking apparatus are up straightened to drawing high distance by the lower beam of the F type bracket bracket that will climb and reach oil cylinder
Stroke locks the chuck of jacking apparatus lower end, unclamps the chuck of jacking apparatus upper end, piston rod is stretched out, upper end is then locked
Chuck, unclamps lower end chuck, and oil cylinder shrinks, is so recycled to the bracket that climbs and reaches required climb altitude, the branch of F type stent ends
Support idler wheel is along the building body surface scrolls for having poured segment.During climbing, each stroke first sensor 7 of jacking apparatus
Feedback, total climb altitude are fed back by second sensor.
Steps are as follows for the Specific construction of the present embodiment:
(1) bottom bridge pier pouring construction, by setting position two pole-climbings of pre-buried each group；
(2) assembling each group is climbed component, and the bracket that will respectively climb is fixed on each group pole-climbing by the chuck at its upper oil cylinder both ends
On, and the telescopic rod of each jacking apparatus is made to be in contraction state；
(3) inside and outside mould platform support is fixed with the bracket that climbs respectively, and detect two platform supports top surface absolute altitude with to
Whether consistent pour feast-brand mark height；
(4) inside and outside mould platform support is connected and fixed with inside and outside template respectively by anti-fall wind-resistant pull rod；
(5) the reinforcing bar binding of section to be poured is carried out；
(6) anti-fall wind-resistant pull rod is removed；
(7) by after lowest level form removable scarfing cinder, make the hoisting apparatus respectively to climb on bracket by this layer of formwork hoisting to
Assembling reinforcement segment；
(8) inside and outside formwork elevation measuring and fixed inside and outside template are adjusted, connects anti-fall wind-resistant pull rod, and cover walking platform
Template promotes channel；
(9) it pours the segment and conserves；
(10) anti-fall wind-resistant pull rod is dismantled, walking platform is flipped up opening；
(11) make each jacking apparatus with inside and outside mould platform support while the segment height to be poured that climbs upwards along pole-climbing
Degree；
(12) step (4)-(11) are repeated, until completing pouring for the last one segment.
In above-mentioned steps, pay attention to when needed connecting the lower section of F type bracket vertical beam, inside outer mould holder
Bottom connects suspension type platform support.
In step (2), the current value of second sensor is recorded when the telescopic rod of each jacking apparatus bounces back, and is filled as the jacking
The zero point value of second sensor is set, the real value of second sensor subtracts the zero point value of the sensor in jacking apparatus operational process
Obtain the current stroke value S of corresponding jacking apparatus；
Climbing every time for jacking apparatus all needs to carry out the calibration of zero point value to second sensor before；
In step (11), the minimum value S of jacking apparatus single stroke is determined according to the value that second sensor measuresmin, pass through
The value of first sensor measurement determines that single climbs the maximum value H of total displacementmaxWith minimum value Hmin, by minimum value SminSuccessively with
Second sensor detects that the current stroke value S of each jacking apparatus compares, and obtains current stroke value S and the jacking of each jacking apparatus
The minimum value S of device single strokeminDifference after treatment process it is as follows:
(11.1) process of climbing is synchronous
If some or certain differences are greater than preset value 1, the biggish jacking apparatus of difference is successively made to stop working,
As the minimum value S of their current stroke value S and jacking apparatus single strokeminDifference be less than preset value 2 when, starting
These jacking apparatus are until synchronous rise a segmental height to be poured.
(11.2) judge whether to reach
The difference of total kilometres one upper deviation of setting and a lower deviation, the upper deviation and lower deviation is more maximum than in synchronous adjustment
It is worth big with the difference of minimum value；
Compare single to climb the minimum value H of total displacementminWith the lower deviation of total kilometres setting range, obtains single and climb always
The minimum value H of displacementminWith the difference of total kilometres setting lower deviation, if difference is greater than 0, total kilometres are completed.Because total kilometres are set
The difference of the fixed upper deviation and lower deviation include Synchronous lifting maxima and minima difference, therefore, when total displacement most
When small value reaches the lower deviation of total kilometres setting, the upper deviation of the maximum value without departing from setting value, the completion of system total kilometres.
(11.3) it levels
When jacking apparatus climb total height maximum value and minimum value difference be greater than total kilometres setting upper and lower deviation difference
When value, starting is climbed the lesser jacking apparatus of total height, until the jacking apparatus climbs the maximum value of total height and minimum value it
Difference is less than the difference of the upper and lower deviation of total kilometres setting, that is, levels.
The step is determined according to live practical situation, if all lifting devices have been accomplished Synchronous lifting and do not occurred
Glide, then the step there is no need to.
Inside and outside mould platform support is linked as entirety by the bracket that climbs, thus by climb bracket not only can Synchronous lifting it is inside and outside
Mould platform support, and the phenomenon that be not in unbalance loading；The bracket that each climbs is both secured in inside and outside two pole-climbing, so when top
The bearing capacity risen when device climbs along pole-climbing is bigger, to keep the height of coming to nothing of pole-climbing bigger, can meet turning over for inner and outer template
Modular space and meet Bridge High-pier construction the needs of；Two hoisting apparatus lift by crane inside and outside template respectively and realize turning over for inside and outside template
Mould is promoted；The sensor of two different locations can Real-time Feedback jacking apparatus single stroke and total displacement of climbing, two sensors
It can mutually correct, so that it is guaranteed that the synchronism climbed, can avoid the prior art because dangerous caused by cumulative errors.
Present invention may also apply to the Bridge High-pier pier constructions that solid or internal nothing sets up internal model platform support space.Figure 10
Showing pier shaft is solid situation.Since pier shaft is solid, so exterior sheathing is only needed when pier shaft pours, so corresponding when construction
Only need external mold platform support climb and the overmolded of external mold, other structures and constructing operation are referring to above-described embodiment.
Claims (10)
1. a kind of bridge pier column construction system, when applied to the pier stud construction for having inner cavity, including in inner template and inner template inner cavity
Internal model platform support, exterior sheathing and its periphery external mold platform support；When pier stud applied to no inner cavity is constructed, including external mold
Plate and its external mold platform support of periphery；Between internal model platform support and inner template, between external mold platform support and exterior sheathing
It is reserved with template and promotes channel, be characterized in that:
For the pier stud construction for having inner cavity, pass through multiple bracket companies of climbing between the internal model platform support and external mold platform support
It is linked as between the opposite side of the external mold platform support by multiple brackets that climb whole for entirety for the pier stud construction of no inner cavity
Body；
Inner side and outer side at the corresponding backing positions that respectively climb of the bottom building body of pier shaft is embedded with pole-climbing respectively, climbs on bracket
It is provided with the jacking apparatus of Direct Action Type at corresponding pole-climbing, its climbing in pole-climbing can be realized by the stretching motion of jacking apparatus
It rising, jacking apparatus realizes that inside and outside mould platform support synchronizes and climbs or the stabilization of external mold platform support is climbed along climbing for pole-climbing,
The hoisting apparatus for being provided on bracket and being horizontally movable climb for overmolded.
2. the system as claimed in claim 1, it is characterised in that: the bracket that climbs include the two F type brackets that are arranged symmetrically and
Upper beam and lower beam between two F type brackets.
3. system as claimed in claim 2, it is characterised in that: the vertical beam of the F type bracket includes the lower part being detachably connected
Section and upper segment.
4. system as claimed in claim 3, it is characterised in that: the lower section lower end of the F type bracket vertical beam is vertically connected with
The triatic stay of building body is stretched to, the end of triatic stay is connected with can be along the back-up roller wheel that building body scrolls up and down.
5. system as claimed in claim 2, it is characterised in that: for have inner cavity pier stud construct, the F type bracket and it is interior,
Dismountable anti-fall wind-resistant pull rod is respectively provided between exterior sheathing；For the pier stud construction of no inner cavity, the F type bracket and exterior sheathing
Between be respectively provided with dismountable anti-fall wind-resistant pull rod.
6. system as claimed in claim 5, it is characterised in that: the jacking apparatus is punching oil cylinder, piston rod and cylinder sleeve
There is axial center hole, the corresponding axial central hole in cylinder sleeve bottom surface and piston rod top surface is respectively fixed with clamping device.
7. system as claimed in claim 6, it is characterised in that: the pole-climbing is appointing in round tube, round bar, square tube or square steel
It anticipates one kind, the upper end is passed through from the lower beam of the F type bracket, and the jacking apparatus is set in pole-climbing, passes through the clamping
Pole-climbing clamping, bottom surface and the lower beam of jacking apparatus are fixed as one by device.
8. system as claimed in claim 4, it is characterised in that: the bottom of the inside and outside mould platform support is connected separately with outstanding
Hanging type platform bracket, on inside and outside mould platform support and suspension type platform support it is corresponding respectively pour segment be provided with it is turnover
Walking platform.
9. a kind of method for carrying out thering is inner cavity bridge pier column to construct using system described in claim 1, comprising the following steps:
(1) bottom bridge pier pouring construction, by setting position two pole-climbings of pre-buried each group；
(2) bracket that will respectively climb is fixed in each group pole-climbing by jacking apparatus, and is in the telescopic rod of each jacking apparatus and is received
It is reduced to a state；
(3) internal model platform support and external mold platform support are fixed respectively with the bracket that climbs, and adjusts the absolute altitude of two platform supports；
(4) inside and outside mould platform support is connected and fixed with inside and outside template respectively by anti-fall wind-resistant pull rod；
(5) the reinforcing bar binding of section to be poured is carried out；
(6) anti-fall wind-resistant pull rod is removed；
(7) hoisting apparatus respectively to climb on bracket after lowest level form removable scarfing cinder, will be made this layer of formwork hoisting to having bound
Reinforcing bar segment；
(8) inside and outside formwork elevation measuring and fixed inside and outside template are adjusted, connects anti-fall wind-resistant pull rod, and walking platform is made to cover template
Promote channel；
(9) it pours the segment and conserves；
(10) anti-fall wind-resistant pull rod is dismantled, walking platform is flipped up opening；
(11) make each jacking apparatus with inside and outside mould platform support while the segmental height to be poured that climbs upwards along pole-climbing；
(12) step (4)-(11) are repeated, until completing pouring for the last one segment.
10. method as claimed in claim 9, it is characterised in that: climb total position climbing on bracket setting for measuring single
The second sensor for measuring its single stroke is arranged on jacking apparatus for the first sensor of shifting；
In step (2), when telescopic rod of each jacking apparatus retraction, records the current value of second sensor, as the jacking apparatus the
The zero point value of two sensors, the zero point that the real value of second sensor subtracts the sensor in jacking apparatus operational process are worth
The current stroke value S of corresponding jacking apparatus；
Climbing every time for jacking apparatus all needs to carry out the calibration of zero point value to second sensor before；
In step (11), the minimum value S of jacking apparatus single stroke is determined according to the value that second sensor measuresmin, pass through first
The value of sensor measurement determines that single climbs the maximum value H of total displacementmaxWith minimum value Hmin, by minimum value SminSuccessively with second
Sensor detects that the current stroke value S of each jacking apparatus compares, and obtains the current stroke value S and jacking apparatus of each jacking apparatus
The minimum value S of single strokeminDifference after treatment process it is as follows:
(11.1) process of climbing is synchronous
If some or certain differences are greater than preset value 1, the biggish jacking apparatus of difference is successively set to stop working, when it
Current stroke value S and jacking apparatus single stroke minimum value SminDifference be less than preset value 2 when, start these
Jacking apparatus is until synchronous rise a segmental height to be poured；
(11.2) judge whether to reach
Total kilometres set a upper deviation and a lower deviation, the difference of the upper deviation and lower deviation than maximum value in synchronous adjustment with
The difference of minimum value is big；
Compare single to climb the minimum value H of total displacementminWith the lower deviation of total kilometres setting range, obtains single and climb total displacement
Minimum value HminWith the difference of total kilometres setting lower deviation, if difference is greater than 0, total kilometres are completed；
(11.3) it levels
When jacking apparatus climb total height maximum value and minimum value difference be greater than total kilometres setting upper and lower deviation difference
When, start the lesser jacking apparatus of total height that climbs, the maximum value of total height and the difference of minimum value until the jacking apparatus climbs
Less than the difference of the upper and lower deviation of total kilometres setting, that is, level.
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| CN201910779265.9A CN110396941B (en) | 2019-08-22 | 2019-08-22 | Bridge pier column construction system and construction method |
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| CN111206506A (en) * | 2020-01-20 | 2020-05-29 | 四川路航建设工程有限责任公司 | Construction method of bridge pier column |
| CN111705662A (en) * | 2020-05-22 | 2020-09-25 | 中建三局集团有限公司 | Deformable frame suitable for inclined structure construction |
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| CN114717950A (en) * | 2022-03-17 | 2022-07-08 | 中交武汉港湾工程设计研究院有限公司 | Intelligent pier making machine and construction method |
| CN114717950B (en) * | 2022-03-17 | 2024-04-12 | 中交武汉港湾工程设计研究院有限公司 | Intelligent pier making machine and construction method |
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| CN113417213A (en) * | 2021-06-28 | 2021-09-21 | 中交路桥建设有限公司 | Integral truss type pull-rod-free turnover formwork system and turnover construction method |
| CN114717950A (en) * | 2022-03-17 | 2022-07-08 | 中交武汉港湾工程设计研究院有限公司 | Intelligent pier making machine and construction method |
| CN114717950B (en) * | 2022-03-17 | 2024-04-12 | 中交武汉港湾工程设计研究院有限公司 | Intelligent pier making machine and construction method |
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| CN110396941B (en) | 2024-04-05 |
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