CN107100069A - A kind of concrete cylindrical pier capping beam and binder inverted construction method - Google Patents
A kind of concrete cylindrical pier capping beam and binder inverted construction method Download PDFInfo
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- CN107100069A CN107100069A CN201710436186.9A CN201710436186A CN107100069A CN 107100069 A CN107100069 A CN 107100069A CN 201710436186 A CN201710436186 A CN 201710436186A CN 107100069 A CN107100069 A CN 107100069A
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- 239000011230 binding agent Substances 0.000 title claims abstract description 160
- 238000010276 construction Methods 0.000 title claims abstract description 135
- 239000004567 concrete Substances 0.000 title claims abstract description 46
- 239000011159 matrix material Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000009415 formwork Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000003247 decreasing effect Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 23
- 230000002787 reinforcement Effects 0.000 claims description 21
- 238000009416 shuttering Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 239000003351 stiffener Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
- E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to the field of bridge construction, specifically disclose a kind of concrete cylindrical pier capping beam and binder inverted construction method, this method is by binder steel bar arrangement figure to offer embedded bar matrix hole on the basis of traditional column-form, realize when bridge cylinder pier is constructed, carry out embedded bar on request at embedded bar matrix, first binder of not constructing, first construction pier stud is to pier top, construct again bent cap, bent cap bottom support structure is finally recycled integrally to transfer the bottom support structure as the nearest binder in lower section to constructing tie beam, according to height decreasing fashion, sequentially binder is constructed, reach the purpose of binder backward construction.The problem of present invention is avoided that change or Widening Construction sidewalk, with pier stud construction section is reduced, construction speed is improved, it is ensured that the abundant of construction formwork is effectively used, saving binder, bent cap bottom support structure need to repeat to build and remove process, the features such as reducing construction cost.
Description
Technical field
The present invention relates to a kind of bridge concrete cylinder pier construction field, specially a kind of concrete cylindrical pier capping beam and
Binder inverted construction method；Suitable for there is the construction of the bridge concrete cylinder pier of binder.
Background technology
At present, highway in China infrastructure construction is drive on boldly via plains region to mound high and steep mountains area, and with
The continuous of the environmentally friendly laws and regulations of country perfects, and the theory of engineering environmental protection is constantly strengthened, in transport development, from planning, prospecting
Design, construction to operation, are all implementing environmental protection concept and requirement, bridge tunnel form gradually replace it is big fill out big digging etc. to environmental disruption compared with
Big construction mode, so that the proportion also therefore rapid increase, and show intensive that bridge is accounted for, high and steep mountains mountain area is applied in addition
Work environment is complicated, the section for often occurring being clipped between two or many bridge blocks must wait bridge main body construction be over after ability
Start construction, so influence to total lever factor is very big, thus how to accelerate bridge construction under the premise of quality, safety etc. is ensured to enter
Degree is the key for ensureing total contract construction.Bridge in high and steep mountains mountain area is generally structural system changing, structural system changing construction
Key is the construction of structure under bridge, including pile foundation, pier stud, bent cap etc., such pier stud is generally concrete circular stub.Chong Shanjun
The most of pier studs of bridge in ridge mountain area are all very high, generally require to set between two pier studs together or multiple tracks binder increases
The lateral stiffness of pier stud, improves pier stud resistance to overturning, binder section is generally square or rectangle.
To there is a pier stud of binder, conventional construction method is that segmentation pours pier stud to binder position, then pour binder and
The pier stud section coupled with binder, continues segmentation and pours pier stud, if also binder, need the pier for pouring binder again and coupling with binder
Shell of column, is poured to pier stud top by above-mentioned steps, finally pours bent cap.
There is problems with conventional construction method：
1st, after the shorter constructing tie beam of portion is complete, can have an impact to original builder's road, and high and steep mountains mountain area side
Slope is precipitous, some even rock land matter, changes or local widening builder's road difficulty is big.
2nd, construct in order, it is necessary to binder intensity must be waited to reach that pier stud could continue up to construct after requirement, add pier
Post construction section, adds the pier stud engineering time, the construction formwork time is long while taking, and Pier Formwork cannot be sufficiently effective
Utilize.
3rd, construct in order, binder, bent cap bottom bracket and bottom template need to repeat to build and remove, it is not convenient to construct,
It is uneconomical.
The content of the invention
The purpose of the present invention is the defect for prior art, and provides the side of a kind of binder column-form and its construction
Method, this method overcomes the shortcomings of the conventional construction method of the concrete circular stub with the presence of binder in tradition；Binder can be realized
Backward is constructed, and can be had at binder first pre-buried binder reinforcement constitution on concrete circular stub according to design needs, continue to coagulation
Native cylinder pier is constructed, and casting concrete cylinder pier is to top, then pours bent cap, then, by height decreasing fashion to binder
Constructed, sequentially transfer and be fixed at bent cap bottom support structure to binder, binder is finally poured again, realize from high to low
Inverted construction method；Also can avoid changing or the problem of Widening Construction sidewalk, reduce pier stud construction section, raising construct into
Degree, shortens the duration, it is ensured that the effective of construction formwork uses, and saving binder, bent cap bottom bracket and bottom template need to repeat to build
And remove process.
In order to realize the invention described above purpose, the technical scheme used for：
A kind of concrete cylindrical pier capping beam and binder inverted construction method, the described method comprises the following steps：
（1）By design drawing in the traditional cylinder pier template of factory process and binder template, also bent cap pours required template；Binder
Template includes binder column-form, bottom template and Side shuttering, and the bottom template of binder and the bottom template of bent cap can be same
With can save and use material, and the installation of binder bottom template when pouring binder can be omitted；Binder steel bar arrangement figure is pressed to justify binder
Column template opens up embedded bar matrix hole, and material is transported into job site；
（2）Steel reinforcement cage is made in reinforcing bar factory, job site is transported to；
（3）Steel reinforcement cage is installed according to drawing, adjusted to installation requirement；Further according to design drawing, binder is provided with cylinder pier
, will be pre- by the reinforcement constitution of the pre-buried design in rebar matrix hole in binder template, and by the way of welding or colligation at node
The reinforcement constitution buried is fixed on steel reinforcement cage；
（4）According to Pier Formwork construction drawing, Pier Formwork is sequentially installed from lower to upper, in the position for thering is embedded bar to construct,
Reinforcing bar after installation, installation is aligned using the progress of binder column-form and exposes the length of binder cylinder mold outer wall for 0.3-0.5m, is adopted
The gap between binder column-form and embedded bar construction is carried out filling out envelope with foamed glue；And remaining position is using traditional cylinder
Template is installed；Until height needed for construction section；As first by cylinder pier, unified construction is completed in succession, rear unified construction system
Beam, whole work progress is smooth efficient in order, it is to avoid many to repeat works, shortens the duration, moreover it is possible to so that column-form is obtained continuously
Effective use, can reduce the input amount of column-form, save and make column-form material, and then can save construction cost；And pass
The cylinder pier construction of system, when cylinder pier construction is to when having binder node, pours cylinder pier and reaches after intensity requirement, then construct and be
Beam, binder is reached after intensity requirement, then cylinder pier is continued up to construct, and such form of construction work is time-consuming more, repeats construction work
Sequence is more, low construction efficiency, and column-form cannot be utilized effectively, constructs more slow；
（5）Pier stud section casting concrete to having completed to install fixed Pier Formwork, the section pier stud is removed after completing 1-2 days
Template；
（6）Repeat（2）Extremely（4）Segmented construction pier stud is to pier top, and an embedded bar at binder is not constructed first；
（7）After pier stud is constructed to pier top 1-2 days, just dismountable all Pier Formworks and next pier stud construction is transferred to,
It is efficiently used Pier Formwork；
（8）If there is bent cap, after pier stud construction is completed, bent cap bottom support structure, rotary ligating cover beam steel, installation side face mould are installed
Plate, pours bent cap；
（9）Pour bent cap concrete removes bent cap Side shuttering after 1-2 days；
（10）After bent cap concrete reaches design strength requirement, it will be covered using the lifting appliance in hoist engine, crane or tower crane
Beam bottom support structure integrally hangs the bottom support structure for moving to the bottom position of lower section binder as binder, and support structure will
It is mounted on the anchor ear being fixedly mounted：If without bent cap, being mounted directly the bottom support structure of the top binder；
（11）Pier stud digs anchor with binder joint face and cleaned out；
（12）The bar construction frame of binder is installed, bar construction frame and embedded bar are welded and fixed, trimming surface welding slag,
Binder side form is installed；
（13）Binder concrete is poured, binder Side shuttering is removed after completing 1-2 days；
（14）If there is binder below, after the binder concrete poured reaches design strength requirement, overall decentralization bottom branch
Support is constructed to install at next binder and fixed, and repeats（10）-（13）Construction procedure completes the construction of remaining binder, if nothing,
Then remove bottom support structure and be transported to next pier stud construction or transport all transitions of material back and be under lock and key.
Embedded bar described above includes the B reinforcing bars of two rows of A reinforcing bars and left and right of two rows；The A reinforcing bars and B reinforcing bars
Constitute rebar matrix.
The diameter of A reinforcing bars described above is more than the diameter of B reinforcing bars.
Binder column-form described above is provided with matrix through hole, and the matrix through hole includes two rows A through holes and a left side
Right two row's B through holes；Often row's A through holes are made up of 10 or more A through holes；Often row's B through holes are made up of 9 or more B through holes.
Matrix through hole described above aligns installation with the embedded bar construction installed on steel reinforcement cage；The hole of the matrix through hole
Embedded bar diameter big 2-4mm of the footpath than aligning installation with matrix through hole.
Support structure described above includes bottom bracket, bottom template, support frame and anchor ear；Bottom is installed on the anchor ear
Bracket, the bottom bracket, which is installed, installs bottom template on support frame, support frame as described above.
Anchor ear described above includes chuck and bolt, and two chucks are attached fixation, are connected by screw bolts by bolt, pacifies
Fill convenient and swift.
Chuck described above is provided with stiffener, and stiffener enhancing chuck stress-bearing capability improves chuck stability under loading.
Needed provided with the binder of 1 or more, when pouring binder, successively decreased by height according to design on pier stud described above
Order sequentially pours downwards the binder on pier stud；Binder on conventional concrete cylinder pier is form of construction work from low to high,
The equal equal strength of binder on each section reaches requirement, could carry out subsequent construction, and this mode more takes work consuming, a larger increase
Construction cost, construction speed is more slow.
The present invention has substantive distinguishing features and the marked improvement of protrusion relative to prior art：
1st, the present invention takes the method that backward construction is carried out to binder；Influence will not be produced on builder's road, it is to avoid builder's road
It is secondary build, without needing to change, raise, Widening Construction sidewalk, improve efficiency of construction, save working measure and take；Reduce pier stud
Construction section at binder, reduces the pier stud engineering time；And constructed using binder column-form, continuously applied by section
Next group of pier stud is just transferred to after the complete first group of pier stud of work, can so accomplish that first group of pier stud just can enter after pier stud is complete
The construction of row bent cap, binder, and next group of pier stud can be constructed simultaneously, construction linking is more reasonable, improves efficiency of construction, and make to mix
Solidifying soil cylinder pier template service efficiency is greatly improved.
2nd, the present invention constructs to concrete circular stub, and according to design requirement, is carried out in the setting position of cylinder pier
The reinforcing bar of pre-buried binder, continuation is constructed to cylinder pier, until constructing to pier top；And institute's embedded bar constitutes rebar matrix；
Every reinforcing bar is set with certain length according to design requirement；When embedded bar aligns installation with binder column-form, pre-buried steel
Muscle is exposed independent from binder column-form peripheral wall length for 0.3-0.5m, can facilitate the abutting joint of follow-up binder reinforcement constitution, bear
Power is strong, Stability Analysis of Structures；After construction to pier top, wait after cylinder pier intensity, pour bent cap, bent cap reaches intensity requirement, can be to bent cap
Bottom support structure carries out overall pulling down, and support structure can integrally be hung to the bottom for the binder to be poured for moving to lower section, as
The support structure of the binder bottom；Can save for pour binder and to the time that each part is sequentially installed in support structure,
The problem of binder, the support structure of bent cap bottom for avoiding traditional sequence construction method from occurring need to repeat to build and remove, applies
Work is more convenient, safety, economy.
3rd, the present invention in use binder column-form, can realize to design reinforcing bar carry out it is pre-buried, can conveniently tear open again
Remove；The larger efficiency of construction for improving concrete circular stub, shortens the construction period；Also realize that backward is constructed to constructing tie beam, be
Concrete circular stub is to bent cap, the sequence of construction of bent cap to binder；When to constructing tie beam, it can realize and the continuous of binder is applied
Work；Tradition is that concrete circular stub is constructed to binder section, first carries out constructing tie beam, is subsequently applied again after constructing tie beam is qualified
Work；If subsequently there is binder, abovementioned steps are repeated；Construction is more slow, and construction cost is high；The present invention overturns traditional construction side
Method, larger raising efficiency of construction shortens the construction period, larger reduction construction cost.
4th, rebar matrix of the present invention is made up of the B reinforcing bars of two rows A reinforcing bars and the row of left and right two, and enhancing binder is born vertically
The ability of shearing force, also improves overall structure stability, higher than the ability to bear for external force of the binder of traditional construction.
5th, the binder column-form employed in the present invention, achievable binder is first reserved, and continues to construct to pier stud, it is to avoid pier
Post construction is interrupted, and improves the intensity of pier stud；After the completion of pier stud pouring construction, intensity reaches requirement, you can form removal, will
The template of dismounting is used on next pier stud, cylinder pier can be realized and constructed in succession in order；Continuum one preferential to cylinder pier
Construction；In the binder of rear construction, continuous unified construction is also realized, orderly function of entirely constructing is shortened the construction period, personnel and set
It is standby to be utilized effectively, improve construction quality.
Brief description of the drawings
Fig. 1 is column-form in a kind of concrete cylindrical pier capping beam of the invention and binder inverted construction method and its equipment
Construction schematic diagram；
Fig. 2 is Fig. 1 top view；
Fig. 3 is to pour after bent cap, then the structural representation of pouring construction is carried out to the binder under it；
Fig. 4 is the main structure diagram of binder column-form；
Fig. 5 is Fig. 4 overlooking the structure diagram；
Fig. 6 is the structural representation provided with embedded bar matrix in Fig. 1；
Fig. 7 is the main structure diagram of anchor ear in Fig. 3；
Sequence number and component names in figure are：1- tradition column-forms, 2- binder column-forms, 3- embedded bars construction, 4- steel
Muscle cage, 5- pier studs, 6- bent caps, 7- binders, 8- bottom brackets, 9- bottoms template, 10- support frames, 11- bar construction framves, 12- is embraced
Hoop, 13- stiffeners, 14- bolts, 15-A through holes, 16-B through holes, 17-A reinforcing bars, 18-B reinforcing bars, 19- chucks, 20- Side shutterings.
Embodiment
The present invention is described in further detail below in conjunction with embodiments of the invention.
Referring to Fig. 1 ~ Fig. 7 explanation, a kind of concrete cylindrical pier capping beam and binder inverted construction method, methods described include with
Lower step：
（1）By design drawing in the traditional cylinder pier of factory process and binder template, binder template is opened by binder steel bar arrangement figure
If embedded bar matrix hole, and it is transported to job site；
（2）Steel reinforcement cage is made in reinforcing bar factory, job site is transported to；
（3）Steel reinforcement cage is installed according to drawing, adjusted to installation requirement；The pre-buried design in rebar matrix hole in binder template is pressed again
Reinforcement constitution, and pre-buried reinforcement constitution is fixed on steel reinforcement cage by the way of welding or colligation；
（4）According to Pier Formwork construction drawing, Pier Formwork is sequentially installed from lower to upper, has the position that embedded bar is constructed in binder
Put, aligning reinforcing bar after installation, installation using the progress of binder column-form exposes the length of binder cylinder mold outer wall for 0.3-0.5m,
The gap between binder column-form and embedded bar construction is carried out filling out envelope using foamed glue；And remaining position uses traditional round
Column template is installed；Until height needed for construction section；
（5）Pier stud section casting concrete to having completed to install fixed Pier Formwork, the section pier stud is removed after completing 1-2 days
Template；
（6）Repeat（2）Extremely（4）Segmented construction pier stud is to pier top, and an embedded bar at binder is not constructed first；
（7）After pier stud is constructed to pier top 1-2 days, just dismountable all Pier Formworks and next pier stud construction is transferred to,
It is efficiently used Pier Formwork；
（8）If there is bent cap, after pier stud construction is completed, bent cap bottom support structure, rotary ligating cover beam steel, installation side face mould are installed
Plate, pours bent cap；And tradition is to construct one by one from lower to upper, and existing can realize is constructed from top to bottom；Relative to traditional construction side
Method is constructed for backward, and backward work progress is avoided that the repetition work of many, and personnel and equipment are utilized effectively, larger to improve
Construction speed, work progress effective；
（9）Pour bent cap concrete removes bent cap Side shuttering after 1-2 days；
（10）After bent cap concrete reaches design strength requirement, it will be covered using the lifting appliance in hoist engine, crane or tower crane
Beam bottom support structure integrally hangs the bottom support structure for moving to the bottom position of lower section binder as binder, and support structure will
It is mounted on the anchor ear being fixedly mounted：If without bent cap, being mounted directly the bottom support structure of the top binder；
（11）Pier stud digs anchor with binder joint face and cleaned out；
（12）The bar construction frame of binder is installed, bar construction frame and embedded bar are welded and fixed, trimming surface welding slag,
Binder side form is installed；
（13）Binder concrete is poured, binder Side shuttering is removed after completing 1-2 days；
（14）If there is binder below, after the binder concrete poured reaches design strength requirement, overall decentralization bottom branch
Support is constructed to install at next binder and fixed, and repeats（10）-（13）Construction procedure completes the construction of remaining binder, if nothing,
Then remove bottom support structure and be transported to next pier stud construction or transport all transitions of material back and be under lock and key.
The embedded bar construction 3 includes the B reinforcing bars 18 of two rows of A reinforcing bars 17 and left and right of two rows；The A reinforcing bars 17
Rebar matrix is constituted with B reinforcing bars 18.
The diameter of the A reinforcing bars 17 is more than the diameter of B reinforcing bars 18.
The binder column-form 2 is provided with matrix through hole, and the matrix through hole includes two rows A through holes and left and right two
Arrange B through holes；Often row's A through holes are made up of 10 or more A through holes 15；Often row's B through holes are made up of 9 or more B through holes 16.
The matrix through hole aligns installation with the embedded bar construction 3 installed on steel reinforcement cage 4；The aperture of the matrix through hole
The big 2-4mm of embedded bar diameter than aligning installation with matrix through hole.
The support structure includes bottom bracket 8, bottom template 9, support frame 10 and anchor ear 12；Installed on the anchor ear 12
Bottom bracket 8, the bottom bracket 8, which is installed, installs bottom template 9 on support frame 10, support frame as described above 10.
The anchor ear 12 includes chuck 19 and bolt 14, and chuck 19 is placed on cylinder pier, then tightens fixation by bolt 14,
This connected mode convenient disassembly, time-consuming work consuming is few, moreover, after using terminating, elasticity bolt can be fallen down automatically.
The chuck 19 is provided with stiffener 13, can strengthen the weight capacity of chuck, and can consolidate overall structure.
Needed on the pier stud according to design provided with the binder 7 of 1 or more, it is suitable by what is highly successively decreased when pouring binder 7
Sequence sequentially pours downwards the binder 7 on pier stud；It can realize and continuous placing construction is carried out to binder 7, realization is constructed from high to lower, and
And whole work progress is all continuous, different from traditional construction.
Case study on implementation 1：
The long 240m of certain Bridge, is designed on stone matter half way up the mountain, and upper structure is 2 sections of 4 × 30m pre-stress concrete simple-supported thencontinuous T beams, bridge
Pier is φ 1.8m, highly the concrete circular stub for 15.7m-37.92m, and 1-3 roads binder is provided with by bridge pier height is different.Such as adopt
Pier stud, binder, bent cap are constructed in order with conventional construction method, there will be part binder after construction to original construction
Sidewalk produces influence, need to reset builder's road route, raises builder's road absolute altitude or widen original builder's road, but
Due to Geological Environment Influence, builder's road is secondary, and to build difficulty big.In addition, the pier column is more, column-form cannot also fill
Divide and effectively use, influence construction speed.Backward construction is carried out to the pier column, binder, bent cap using binder column-form, greatly
Shorten the duration greatly, it is ensured that Pier Formwork obtain it is sufficiently effective use, and need not carry out that builder's road is secondary to be built, drop significantly
Low construction cost.
Case study on implementation 2：
The long 510m of certain Bridge, upper structure is to connect after the first freely-supported of 5 × 30m+2 × 30m+4 × 30m+3 × 30m+3 × 30m pre-stress concretes
Continuous T beams, are φ 1.8m, and height 8.29m-30.19m concrete circular stub is provided with 1-2 roads binder by bridge pier height is different, according to
The practice of case 1 and experience, have enough to meet the need with the material in case 1, cost are greatly reduced, while also saving the duration.Using
The present invention, substantially reduces the duration, and substantially reduce construction cost.
Claims (9)
1. a kind of concrete cylindrical pier capping beam and binder inverted construction method, it is characterised in that the described method comprises the following steps：
By design drawing in the traditional cylinder pier template of factory process and binder template, by binder steel bar arrangement figure to binder cylinder mold
Plate opens up embedded bar matrix hole, and is transported to job site；
Steel reinforcement cage is made in reinforcing bar factory, job site is transported to；
Steel reinforcement cage is installed according to drawing, adjusted to installation requirement；Further according to design drawing, there is the node of binder on cylinder pier
Place, by the reinforcement constitution of the pre-buried design in rebar matrix hole in binder template, and will be pre-buried by the way of welding or colligation
Reinforcement constitution is fixed on steel reinforcement cage；
According to Pier Formwork construction drawing, Pier Formwork is sequentially installed from lower to upper, has the position that embedded bar is constructed in binder,
Reinforcing bar after installation, installation is aligned using the progress of binder column-form and exposes the length of binder cylinder mold outer wall for 0.3-0.5m, is adopted
The gap between binder column-form and embedded bar construction is carried out filling out envelope with foamed glue；And remaining position is using traditional cylinder
Template is installed；Until height needed for construction section；
Pier stud section casting concrete to having completed to install fixed Pier Formwork, the section pier stud mould is removed after completing 1-2 days
Plate；
Repeat（2）Extremely（4）Segmented construction pier stud is to pier top, and an embedded bar at binder is not constructed first；
After pier stud is constructed to pier top 1-2 days, just dismountable all Pier Formworks and next pier stud construction is transferred to, makes pier
Column template is efficiently used；
If there is bent cap, after pier stud construction is completed, installation bent cap bottom support structure, rotary ligating cover beam steel, seating side template,
Pour bent cap；
Pour bent cap concrete removes bent cap Side shuttering after 1-2 days；
After bent cap concrete reaches design strength requirement, using the lifting appliance in hoist engine, crane or tower crane by bent cap bottom
Portion's support structure integrally hangs the bottom support structure for moving to the bottom position of lower section binder as binder, and support structure will be installed
It is fixed on the anchor ear being fixedly mounted：If without bent cap, being mounted directly the bottom support structure of the top binder；
Pier stud digs anchor with binder joint face and cleaned out；
The bar construction frame of binder is installed, bar construction frame and embedded bar are welded and fixed, trimming surface welding slag, is installed
Binder side form；
Binder concrete is poured, binder Side shuttering is removed after completing 1-2 days；
If there is binder below, after the binder concrete poured reaches design strength requirement, overall decentralization bottom support structure
Make to next binder to install and fix, and repeat（10）-（13）Construction procedure completes the construction of remaining binder, if nothing, tears open
Except bottom support structure and it is transported to the construction of next pier stud or transports all transitions of material back and be under lock and key.
2. concrete cylindrical pier capping beam according to claim 1 and binder inverted construction method, it is characterised in that：It is described pre-
Bury reinforcement constitution（3）A reinforcing bars including two rows（17）With the B reinforcing bars of the row of left and right two（18）；The A reinforcing bars（17）With B steel
Muscle（18）Constitute rebar matrix.
3. concrete cylindrical pier capping beam according to claim 2 and binder inverted construction method, it is characterised in that：The A
Reinforcing bar（17）Diameter be more than or equal to B reinforcing bars（18）Diameter.
4. concrete cylindrical pier capping beam according to claim 1 and binder inverted construction method, it is characterised in that：The system
Beam column-form（2）Matrix through hole is provided with, the matrix through hole includes two row's B through holes of two rows A through holes and left and right；Often arrange
A through holes are by 10 or more A through holes（15）Constitute；Often row's B through holes are by 9 or more B through holes（16）Constitute.
5. concrete cylindrical pier capping beam according to claim 1 and binder inverted construction method, it is characterised in that：The square
Battle array through hole and steel reinforcement cage（4）The embedded bar construction of upper installation（3）Align installation；The aperture of the matrix through hole than with matrix
Through hole aligns the big 2-4mm of embedded bar diameter of installation.
6. concrete cylindrical pier capping beam according to claim 1 and binder inverted construction method, it is characterised in that：The branch
Support construction includes bottom bracket（8）, bottom template（9）, support frame（10）And anchor ear（12）；The anchor ear（12）Upper installation bottom
Bracket（8）, the bottom bracket（8）Support frame is installed（10）, support frame as described above（10）Upper installation bottom template（9）.
7. concrete cylindrical pier capping beam according to claim 6 and binder inverted construction method, it is characterised in that：Described armful
Hoop（12）Including chuck（19）And bolt（14）.
8. concrete cylindrical pier capping beam according to claim 7 and binder inverted construction method, it is characterised in that：The folder
Set（19）It is provided with stiffener（13）.
9. concrete cylindrical pier capping beam according to claim 1 and binder inverted construction method, it is characterised in that：The pier
Needed on post according to design provided with the binder of 1 or more, when pouring binder, the order successively decreased by height sequentially pours downwards pier
Binder on post.
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| CN108081448A (en) * | 2017-12-11 | 2018-05-29 | 安徽海龙建筑工业有限公司 | It is a kind of to integrate decoration, electromechanical prefabricated GRC formwork structures column production technology |
| CN108505448A (en) * | 2018-04-30 | 2018-09-07 | 安徽省公路桥梁工程有限公司 | Pier cap beam anchor ear girder steel template system and its construction method |
| CN108595854A (en) * | 2018-04-28 | 2018-09-28 | 天津市热电设计院有限公司 | A kind of steel reinforcement cage computational methods of armored concrete anchor block |
| WO2019068232A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Inclination angle groove-type road and bridge module |
| WO2019068229A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Groove type railway bridge pier formwork capable of being quickly spliced and disassembled |
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| CN112144412A (en) * | 2020-09-25 | 2020-12-29 | 四川交投建设工程股份有限公司 | Construction method of prefabricated assembled intercolumnar tie beam |
| CN112627034A (en) * | 2020-12-10 | 2021-04-09 | 上海宝冶集团有限公司 | Synchronous construction method for turning over mold of high pier of bridge |
| CN114045750A (en) * | 2021-11-10 | 2022-02-15 | 中冶交通建设集团有限公司 | Construction method of high pier column tie beam |
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| WO2019068232A1 (en) * | 2017-10-08 | 2019-04-11 | 朱子毅 | Inclination angle groove-type road and bridge module |
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| CN111321673A (en) * | 2020-03-23 | 2020-06-23 | 五冶集团上海有限公司 | Bridge cylindrical pier template, assembling method and construction method of bridge cylindrical pier |
| CN112144412A (en) * | 2020-09-25 | 2020-12-29 | 四川交投建设工程股份有限公司 | Construction method of prefabricated assembled intercolumnar tie beam |
| CN112627034A (en) * | 2020-12-10 | 2021-04-09 | 上海宝冶集团有限公司 | Synchronous construction method for turning over mold of high pier of bridge |
| CN114045750A (en) * | 2021-11-10 | 2022-02-15 | 中冶交通建设集团有限公司 | Construction method of high pier column tie beam |
| CN114045750B (en) * | 2021-11-10 | 2023-11-28 | 中冶交通建设集团有限公司 | Construction method of high pier column tie beam |
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Application publication date: 20170829 |