CN106930194A - Inter-tie and pier stud global formation construction method and template used support - Google Patents
Inter-tie and pier stud global formation construction method and template used support Download PDFInfo
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- CN106930194A CN106930194A CN201710326849.1A CN201710326849A CN106930194A CN 106930194 A CN106930194 A CN 106930194A CN 201710326849 A CN201710326849 A CN 201710326849A CN 106930194 A CN106930194 A CN 106930194A
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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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Abstract
Inter-tie of the present invention and pier stud global formation construction method and template used support, belong to highway bridge pier stud and inter-tie construction method technical field；The technical problem of solution is to provide a kind of inter-tie and upper pier stud, the construction method of lower pier stud one-time-concreting global formation and template used support；The technical scheme for using for：Inter-tie and pier stud global formation construction method, 1, pier stud reinforcing bar is installed；2nd, the reinforcing bar colligation of binder, formwork erection and concreting between stake；3rd, the disposable installation of the template of upper and lower pier stud and inter-tie；4th, the concrete one-piece casting of upper and lower pier stud, inter-tie；5th, the dismounting of upper Pier Formwork, inter-tie template and lower Pier Formwork；Inter-tie and pier stud global formation falsework, the upper end of two hounds are connected to the middle part of inter-tie template bed die bottom surface, and two lower ends of hound are linked together with a Pier Formwork respectively, and drag link is horizontally set between two Pier Formworks.
Description
Technical field
Inter-tie of the present invention and pier stud global formation construction method and template used support, belong to highway bridge pier stud with
Inter-tie construction method technical field.
Background technology
Recently as constantly putting into operation for each standard highway, highway bridge also substantial amounts of application therewith.At present in public affairs
In the design of road and bridge beam, most of less than 30m designs for the lower height of bridge is column pier, typically by holding in pile foundation
Platform（Binder between stake）, pillar pier shaft, inter-tie（When pier stud is higher）Constituted with bent cap.Advantage is to mitigate pier shaft deadweight, section
About masonry material, better appearance, rigidity and intensity are all larger, can be used in having the river of drift and floating ice.Carry out
All it was in the past the construction for first carrying out lower pier stud when the bridge bottom for having inter-tie is constructed, was completed and form removal in the construction of lower pier stud
The construction of inter-tie is carried out using Hold Hoop method, Support Method afterwards.
Anchor ear in Hold Hoop method is typically made of two blocks of semicircular arc steel plates, is connected by high-strength bolt.Anchor ear lock ring exists
The frictional force produced on pier stud provides the reaction of bearing of superstructure, is main support force structure.Set up on anchor ear flat
Platform carries out the construction of inter-tie and upper pier stud.This construction method has the following disadvantages：
1st, project progress is affected；
2nd, engineering cost increases；
3rd, upper pier stud easily produces faulting of slab ends, spillage with the stubble that connects of lower pier stud.
Support Method is usually to set up support on inter-tie lower ground after the completion of lower pier stud is poured, and is carrying out intercolumniation
The installation of binder template.This method there is also not enough with Hold Hoop method identical.
The content of the invention
The present invention overcomes the shortcomings of that prior art is present, technical problem to be solved for provide a kind of inter-tie with it is upper
Pier stud, the construction method of lower pier stud one-time-concreting global formation and template used support.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：Inter-tie is applied with pier stud global formation
Work method, is carried out as steps described below：
The first step, installs pier stud reinforcing bar：The steel bar meter of passed examination, colligation are shaped and installed；
Second step, carries out the reinforcing bar colligation of binder, formwork erection and concreting between stake；
3rd step, after after binder form removal between stake, carrying out the formwork erection of upper and lower pier stud and inter-tie, and upper and lower pier stud and post
Between binder the disposable installation of template；
When binder bed die is made with upper and lower Pier Formwork, steel plate and prepared screw-bolt hole are set in relevant position, by what is reserved
Bolt hole installs hound and drag link；
4th step, carries out the concrete one-piece casting of upper and lower pier stud, inter-tie；
5th step, when pier stud concrete strength reaches more than 2.5MPa, first carries out Pier Formwork and inter-tie side form
Remove, when concrete strength reaches the 75% of design strength, carry out the dismounting of inter-tie bed die and lower Pier Formwork.
In the first step, before pier stud reinforcement installation, pile foundation top concrete need to be cleaned, to ensure the whole of pier shaft and pile foundation
Body, after pier stud reinforcing bar installation, is fixed, using three cable wind ropes to ensure the stability of pier stud steel reinforcement cage.
In 3rd step, the formwork erection of upper and lower pier stud and inter-tie is concretely comprised the following steps：
First carry out the formwork erection of lower pier stud, under making during Pier Formwork, away between stake be due to inter-tie depth of beam not
Together, so the length of common template need to be determined according to the size of drawing, and regulation section is made, will with the elevation for ensureing inter-tie
Ask；Lower Pier Formwork installs the drag link between pier stud after the completion of installing；
Then the installation of inter-tie bed die is carried out, the inter-tie bed die is one overall to improve bed die support force, is lifted
First two hounds and inter-tie bed die are connected firmly before inter-tie bed die, the upper end of two hounds is fixed on
The middle part of inter-tie bed die, and be symmetrical arranged with 45° angle inclination；After lifting in place, using high-strength bolt by inter-tie bottom
Mould is attached to form an entirety with the regulation section of lower Pier Formwork；
After inter-tie bed die installation, the bottom of hound is connected in lower Pier Formwork inner side and stitches position, for propping up
Pressure under the concreting of support inter-tie is backward；
Then inter-tie reinforcing bar colligation is carried out, installing for inter-tie side form and upper Pier Formwork is carried out after the completion of colligation；
After the completion of whole formwork support arrangements, 3 road -4 roads are set according to height and pulls air hardening steel rope, tightened up with jack, to Control architecture
The stability of perpendicularity and guarantee template.
In 4th step, under concreting during pier stud, when concreting is close to inter-tie, by concrete
The slump controls the lower limit in design load, when pouring inter-tie concrete, while pour with its level pier stud, and make pier
Concrete in post is slightly above inter-tie 10-20cm of top of concrete, after the completion of inter-tie is poured, to inter-tie top
Surface concrete surface carries out the treatment of receipts face, receives after the completion of the treatment of face, carries out pouring for pier stud, the pier stud concrete on pouring
When, the slump of concrete is controlled into the lower limit in design load, while slow down speed of perfusion, to prevent concrete from inter-tie
Top surface is overflowed, and upper pier stud concrete is carried out according to code requirement after inter-tie concrete is not influenceed by upper pier stud concrete
Pour, until reaching the design altitude of pier stud.
In 5th step, after upper Pier Formwork and the dismounting of inter-tie side form, dampness is in concrete surface
When, rapid using plastic sheeting that pier shaft exposure surface concrete parcel is tight, plastic sheeting is remained intact during parcel, that
This overlap joint is complete；
After inter-tie bed die and lower Pier Formwork are removed, water tank is placed in pier top, water storage pot bottom sets aperture, makes water storage
Water in tank slowly oozes out, to ensure pier stud surface wettability.
Inter-tie and pier stud global formation falsework, including Pier Formwork, inter-tie template, hound and horizontal drawing
Bar, inter-tie template is fixed between two Pier Formworks, and bolt is provided with the middle part of bed die bottom surface in inter-tie template
Hole, is also equipped with bolt hole on two Pier Formworks, the upper end of two hounds is bolted at inter-tie template bottom
The middle part of mould bottom surface, two hounds are symmetrical arranged for oblique 45° angle, and two lower ends of hound are by bolt respectively with one
Individual Pier Formwork is linked together, and drag link is horizontally set between two Pier Formworks, and is connected by bolt and Pier Formwork
It is connected together；The drag link is located at two lower sections of hound, and three constitutes an isosceles right triangle.
The structure of the hound is：The body of rod is respectively fixed at two ends with a circle chimb, and multiple spiral shells are provided with the chimb
Keyhole；
The structure of the drag link is：The body of rod is respectively fixed at two ends with a circle chimb, and multiple bolts hole are provided with the chimb.
Bolt hole in the hound and drag link on each chimb is four.
The present invention has the advantages that compared with prior art.
1st, inter-tie and pier stud one-time-concreting global formation are accelerated construction speed by the present invention.
2nd, present invention eliminates the anchor ear or support in conventional method so that engineering cost is reduced.
3rd, it is of the invention by inter-tie and pier stud global formation so that upper that faulting of slab ends, leakage will not be produced between pier stud, lower pier stud
Slurry, it is ensured that construction quality, and appearance looks elegant.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of inter-tie and pier stud global formation falsework.
Fig. 2 is bed die bolt hole on underside schematic diagram in inter-tie template.
Fig. 3 is Pier Formwork bolt hole schematic diagram.
Fig. 4 is the structural representation of hound.
Fig. 5 is the structural representation of diagonal brace rod end surface.
Fig. 6 is the structural representation of drag link.
Fig. 7 is the structural representation of drag link end face.
In figure：1 is Pier Formwork, and 2 is inter-tie template, and 3 is hound, and 4 is drag link.
Specific embodiment
As shown in Fig. 1-Fig. 7, inter-tie of the present invention and pier stud global formation falsework, including Pier Formwork 1, intercolumniation
Binder template 2, hound 3 and drag link 4, inter-tie template 2 are fixed between two Pier Formworks 1, inter-tie template 2
Bolt hole is provided with the middle part of middle bed die bottom surface, bolt hole, two upper ends of hound 3 are also equipped with two Pier Formworks 1
The middle part in the bed die bottom surface of inter-tie template 2 is bolted, two hounds 3 are symmetrical arranged for oblique 45° angle, two
The lower end of root hound 3 is linked together with a Pier Formwork 1 respectively by bolt, and drag link 4 is horizontally set on two piers
Between column template 1, and linked together with Pier Formwork 1 by bolt；The drag link 4 is located at two lower sections of hound 3,
Three constitutes an isosceles right triangle.
The structure of the hound 3 is：The body of rod is respectively fixed at two ends with a circle chimb, and multiple spiral shells are provided with the chimb
Keyhole；
The structure of the drag link 4 is：The body of rod is respectively fixed at two ends with a circle chimb, and multiple bolts are provided with the chimb
Hole.
Bolt hole in the hound 3 and drag link 4 on each chimb is four.
, it is necessary to carry out following preparations before formal construction is carried out.
1st, workmen is confided a technological secret before the engineering construction of bridge bottom, the scheme that project management department formulates is carried out into layer
Layer is told somebody what one's real intentions are, and inter-tie accomplishes that everybody knows what's what with the details of pier stud global formation, understands the emphasis ring of this construction technology
Section.
2nd, site safety administrative staff have to pass through the training of high standard, and with abundant safety management experience, it is right
Workmen carries out safe practice three-level and tells somebody what one's real intentions are, and accomplishes that everybody signs archive.
3rd, the quality of cement, rubble and sand marched into the arena strictly is controlled, field laboratory tests according to regulation frequency, right
Appearance is firmly removed in defective material.Bedding plant and mixing station periphery are hardened using concrete, prevent soil and debris
Concrete quality is influenceed into sand material.
4th, to carrying out standard mix design in qualified third party using the concrete in pier stud and inter-tie.Work
Ground laboratory and chief inspector do laboratory and standard mix are verified, to ensure the quality of concrete.
After the completion of above-mentioned preparation, inter-tie of the present invention and pier stud global formation construction method, as steps described below
Carry out：
The first step, installs pier stud reinforcing bar：By the reinforcing bar of passed examination, in reinforcement yard's processing, colligation shaping, then by wooden handcart
Be transported to pier position nearby install, its items processing and colligation index strictly according to corresponding job specfication be controlled in tolerance it
Interior, cover to reinforcement ensures protective layer thickness using cushion block；Before pier stud reinforcement installation, pile foundation top concrete need to be cleaned, with
Ensure the globality of pier shaft and pile foundation, after pier stud reinforcing bar installation, be fixed using three cable wind ropes, to ensure foot stall steel
The stability of muscle cage；
Second step, carries out the reinforcing bar colligation of binder, formwork erection and concreting between stake, work progress in strict accordance with specification and
Design requirement is carried out；
3rd step, after after binder form removal between stake, carrying out the formwork erection of upper and lower pier stud and inter-tie, and upper and lower pier stud and post
Between binder the disposable installation of template；
When binder bed die is made with upper and lower Pier Formwork, steel plate and prepared screw-bolt hole are set in relevant position, by what is reserved
Bolt hole installs hound and drag link；
The formwork erection of upper and lower pier stud and inter-tie is concretely comprised the following steps：
First carry out the formwork erection of lower pier stud, the large volume punching block that pier body formwork is shaped using factory process（δ=5mm）, use
Bolt（φ=20mm）Connection.
It is different depth of beam away between stake due to inter-tie, so need to be according to drawing under making during Pier Formwork
Size determines the length of common template, and makes regulation section, to ensure the range request high of inter-tie；Lower Pier Formwork has been installed
Drag link between rear installation pier stud；In addition, template face seam highness change is in 1mm, flatness is controlled in 2mm, pier shaft
Template carries on the back a tree, used in making timber for boats in length and breadth using shaped steel, and template sets 0.3cm male and female wedges when processing is made, and forms hoop with fixation, branch hold mode
Plate, it is ensured that template will not misplace, deform, spillage；
Should conscientiously be polished totally in lower Pier Formwork Zhi Liqian, brushing releasing agent is clipped in assembly using double faced adhesive tape grout cover
Mortar leakage prevention is sentenced in form joint；Accurate putting sets structure outer contour and by substrate cement screeding, levelling mistake before formwork support arrangement
Difference control is in 2mm, it is ensured that the perpendicularity after template is spelled meets code requirement；Template assembly uses hand fit's crane, in mould
Suspension centre is considered when plate is designed in case lifting deformation；It is to check the perpendicularity and geometry of template that often lifting one saves template,
Errorless rear Xu Pin upper stratas；The regulation section of lower Pier Formwork must be placed in bottom, to ensure hound with 45 degree of connection intercolumniation systems
Beam bottom board and lower Pier Formwork；Corrected with plumb bob during model sheetinstallat；
Then the installation of inter-tie bed die is carried out, the inter-tie bed die is one overall to improve bed die support force, is lifted
First two hounds and inter-tie bed die are connected firmly before inter-tie bed die, the upper end of two hounds is fixed on
The middle part of inter-tie bed die, and be symmetrical arranged with 45° angle inclination；After lifting in place, using high-strength bolt by inter-tie bottom
Mould is attached to form an entirety with the regulation section of lower Pier Formwork；
After inter-tie bed die installation, the bottom of hound is connected in lower Pier Formwork inner side and stitches position, for propping up
Pressure under the concreting of support inter-tie is backward；
Then inter-tie reinforcing bar colligation is carried out, is carried out according to drawing requirement size during colligation, while meeting wanting for job specfication
Ask, colligation is completed and carries out installing for inter-tie side form and upper Pier Formwork, mould used after the assay was approved through supervising engineer
Plate uses set shaped steel formwork, and model sheetinstallat detection project all should reach code requirement；
After the completion of whole formwork support arrangements, 3 road -4 roads are set according to height and pulls air hardening steel rope, tightened up with jack, to Control architecture
The stability of perpendicularity and guarantee template；
4th step, carries out the concrete one-piece casting of upper and lower pier stud, inter-tie；
Need first to set up workbench at the top of pier stud, deceleration tumbling barrel is set to reduce concrete height of drop and speed, prevent concrete from occurring
Segregation phenomenon, tumbling barrel bottom is no more than 2m away from concrete surface；Pier shaft concrete uses concrete tank in adjacent blending station concentrated compactness
Car enters mould after transporting to job site with crane lifting；During construction, transportation range, weather condition according to concrete suitably adjust slump
Degree, its slump-loss should take into full account before construction；Concrete does outward appearance identification and slump detection before entering mould, meets design requirement
Could use；When concrete is not more than 30cm symmetrically blanking pours concrete by thickness, it is to avoid unilateral buildup, it is ensured that concrete is to surrounding in mould
Side form pressure is substantially uniform, balance, and template deformation, displacement are caused to avoid unilateral buildup from causing the side concrete lateral pressure bigger than normal；
Concrete is vibrated using poker vibrator, and adjacent interlayer joins the 10cm~20cm that vibrates, and direction of vibrating is circulated from middle to side, vibrates
It is even；In concrete pouring, it is ensured that the continuity for pouring, the deformation of template, sends special messenger's inspection on duty in paying special attention to pour.
Under concreting during pier stud, when concreting is close to inter-tie, the slump control of concrete is existed
The lower limit of design load, when pouring inter-tie concrete, while pour with its level pier stud, and make the concrete in pier stud
Slightly above 10-20cm of inter-tie top of concrete, after the completion of inter-tie is poured, to inter-tie top surface concrete surface
The treatment of receipts face is carried out, is received after the completion of the treatment of face, pouring for pier stud is carried out, on pouring during pier stud concrete, by concrete
The slump controls the lower limit in design load, while slowing down speed of perfusion, to prevent concrete from being overflowed from inter-tie top surface, treats post
Between binder concrete do not influenceed by upper pier stud concrete after carry out pouring for upper pier stud concrete according to code requirement, until reaching
To the design altitude of pier stud；
5th step, when pier stud concrete strength reaches more than 2.5MPa, first carries out Pier Formwork and inter-tie side form
Remove, rapid to use plastic sheeting that pier shaft exposure surface concrete parcel is tight when concrete surface is in dampness, bag
Plastic sheeting is remained intact during wrapping up in, and is lapped one another complete；When concrete strength reaches the 75% of design strength, carry out
The dismounting of inter-tie bed die and lower Pier Formwork, and water tank is placed in pier top, water storage pot bottom sets aperture, makes water tank
In water slowly ooze out, to ensure pier stud surface wettability.
Cost analysis of the invention is carried out below.
The present invention accelerates construction speed, shortens the duration on the premise of construction quality is ensured, reduces in construction
Material, machinery, labour cost, saved management cost.
The benefit to the inventive method and traditional anchor ear construction method by taking across a pier stud construction as an example is contrasted below：
Claims (8)
1. inter-tie and pier stud global formation construction method, it is characterised in that carry out as steps described below：
The first step, installs pier stud reinforcing bar：The steel bar meter of passed examination, colligation are shaped and installed；
Second step, carries out the reinforcing bar colligation of binder, formwork erection and concreting between stake；
3rd step, after after binder form removal between stake, carrying out the formwork erection of upper and lower pier stud and inter-tie, and upper and lower pier stud and post
Between binder the disposable installation of template；
When binder bed die is made with upper and lower Pier Formwork, steel plate and prepared screw-bolt hole are set in relevant position, by what is reserved
Bolt hole installs hound and drag link；
4th step, carries out the concrete one-piece casting of upper and lower pier stud, inter-tie；
5th step, when pier stud concrete strength reaches more than 2.5MPa, first carries out Pier Formwork and inter-tie side form
Remove, when concrete strength reaches the 75% of design strength, carry out the dismounting of inter-tie bed die and lower Pier Formwork.
2. inter-tie according to claim 1 and pier stud global formation construction method, it is characterised in that：The first step
In, before pier stud reinforcement installation, pile foundation top concrete need to be cleaned, to ensure the globality of pier shaft and pile foundation, pier stud reinforcement installation
After the completion of, it is fixed using three cable wind ropes, to ensure the stability of pier stud steel reinforcement cage.
3. inter-tie according to claim 1 and 2 and pier stud global formation construction method, it is characterised in that：Described
In three steps, the formwork erection of upper and lower pier stud and inter-tie is concretely comprised the following steps：
First carry out the formwork erection of lower pier stud, under making during Pier Formwork, away between stake be due to inter-tie depth of beam not
Together, so the length of common template need to be determined according to the size of drawing, and regulation section is made, will with the elevation for ensureing inter-tie
Ask；Lower Pier Formwork installs the drag link between pier stud after the completion of installing；
Then the installation of inter-tie bed die is carried out, the inter-tie bed die is one overall to improve bed die support force, is lifted
First two hounds and inter-tie bed die are connected firmly before inter-tie bed die, the upper end of two hounds is fixed on
The middle part of inter-tie bed die, and be symmetrical arranged with 45° angle inclination；After lifting in place, using high-strength bolt by inter-tie bottom
Mould is attached to form an entirety with the regulation section of lower Pier Formwork；
After inter-tie bed die installation, the bottom of hound is connected in lower Pier Formwork inner side and stitches position, for propping up
Pressure under the concreting of support inter-tie is backward；
Then inter-tie reinforcing bar colligation is carried out, installing for inter-tie side form and upper Pier Formwork is carried out after the completion of colligation；
After the completion of whole formwork support arrangements, 3 road -4 roads are set according to height and pulls air hardening steel rope, tightened up with jack, to Control architecture
The stability of perpendicularity and guarantee template.
4. inter-tie according to claim 1 and 2 and pier stud global formation construction method, it is characterised in that：Described
In four steps, under concreting during pier stud, when concreting is close to inter-tie, the slump control of concrete is being set
The lower limit of evaluation, when pouring inter-tie concrete, while pour with its level pier stud, and omit the concrete in pier stud
Higher than inter-tie 10-20cm of top of concrete, after the completion of inter-tie is poured, inter-tie top surface concrete surface is entered
Row receipts face is processed, and is received after the completion of the treatment of face, pouring for pier stud is carried out, on pouring during pier stud concrete, by collapsing for concrete
Degree of falling controls the lower limit in design load, while slowing down speed of perfusion, to prevent concrete from being overflowed from inter-tie top surface, treats intercolumniation
Binder concrete carries out pouring for upper pier stud concrete after not influenceed by upper pier stud concrete according to code requirement, until reaching
The design altitude of pier stud.
5. inter-tie according to claim 1 and 2 and pier stud global formation construction method, it is characterised in that：Described
In five steps, after upper Pier Formwork and the dismounting of inter-tie side form, when concrete surface is in dampness, rapidly using plastics
Film is tight by pier shaft exposure surface concrete parcel, and plastic sheeting is remained intact during parcel, is lapped one another complete；
After inter-tie bed die and lower Pier Formwork are removed, water tank is placed in pier top, water storage pot bottom sets aperture, makes water storage
Water in tank slowly oozes out, to ensure pier stud surface wettability.
6. inter-tie and pier stud global formation falsework, it is characterised in that：Including Pier Formwork（1）, inter-tie template
（2）, hound（3）And drag link（4）, inter-tie template（2）It is fixed on two Pier Formworks（1）Between, inter-tie mould
Plate（2）Bolt hole, two Pier Formworks are provided with the middle part of middle bed die bottom surface（1）On be also equipped with bolt hole, two hounds
（3）Upper end be bolted in inter-tie template（2）The middle part of bed die bottom surface, two hounds（3）It is oblique 45 °
Angle is symmetrical arranged, two hounds（3）Lower end by bolt respectively with a Pier Formwork（1）Link together, drag link
（4）It is horizontally set on two Pier Formworks（1）Between, and by bolt and Pier Formwork（1）Link together；The drag link
（4）Positioned at two hounds（3）Lower section, three constitute an isosceles right triangle.
7. inter-tie according to claim 6 and pier stud global formation falsework, it is characterised in that：The hound
（3）Structure be：The body of rod is respectively fixed at two ends with a circle chimb, and multiple bolts hole are provided with the chimb；
The drag link（4）Structure be：The body of rod is respectively fixed at two ends with a circle chimb, and multiple bolts are provided with the chimb
Hole.
8. inter-tie according to claim 7 and pier stud global formation falsework, it is characterised in that：The hound
（3）And drag link（4）In bolt hole on each chimb be four.
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| CN110700105A (en) * | 2019-10-21 | 2020-01-17 | 中交一公局第七工程有限公司 | Synchronous construction method for high pier column and tie beam and template used in same |
| CN111455858A (en) * | 2020-04-23 | 2020-07-28 | 安徽省路港工程有限责任公司 | Integral pouring construction method for column pier |
| CN112030750A (en) * | 2020-07-17 | 2020-12-04 | 中交一公局集团有限公司 | Construction process for tie beam in water |
| WO2022142999A1 (en) * | 2020-12-29 | 2022-07-07 | 中铁一局集团有限公司 | Hoisting device for bridge water surface pile tie beam and construction method therefor |
| CN114892530A (en) * | 2022-05-22 | 2022-08-12 | 中建八局第二建设有限公司 | Arc-shaped body combined template supporting structure of ultrahigh double-layer arc-shaped tie beam and construction method |
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| CN114892530A (en) * | 2022-05-22 | 2022-08-12 | 中建八局第二建设有限公司 | Arc-shaped body combined template supporting structure of ultrahigh double-layer arc-shaped tie beam and construction method |
| CN114892530B (en) * | 2022-05-22 | 2023-10-03 | 中建八局第二建设有限公司 | Arc body combined formwork supporting structure of ultrahigh double-layer arc tie beam and construction method |
| CN115369748A (en) * | 2022-09-19 | 2022-11-22 | 中交一公局第七工程有限公司 | Construction method of template system for integrally pouring pier and tie beam |
| CN115369748B (en) * | 2022-09-19 | 2024-06-04 | 中交一公局第七工程有限公司 | Construction method of formwork system for integrally pouring bridge pier and tie beam |
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