CN108544655A - The curved beam prefabricated construction method of curved bridge - Google Patents
The curved beam prefabricated construction method of curved bridge Download PDFInfo
- Publication number
- CN108544655A CN108544655A CN201810314286.9A CN201810314286A CN108544655A CN 108544655 A CN108544655 A CN 108544655A CN 201810314286 A CN201810314286 A CN 201810314286A CN 108544655 A CN108544655 A CN 108544655A
- Authority
- CN
- China
- Prior art keywords
- curved
- bellows
- construction method
- concrete
- prefabricated construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/046—Post treatment to obtain pre-stressed articles
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of curved beam prefabricated construction methods of curved bridge, including：Step a, mounting rail rib and diaphragm plate reinforcing bar；Step b, bellows is installed；Step c, installation form；Step d, slab reinforcement is installed；Step e, hogging moment bellows is installed；Step f, concreting；Step g, maintenance and form removal；Step h, prestressed stretch-draw and mud jacking；Wherein, internal lining pipe is worn in bellows, and tensioning is influenced for mortar leakage prevention.The construction method has broken the common process limitation of curved bridge cast-in-place construction, takes curve song to do technique, meets bridge Horizontal Curve requirement, fully show curved bridge line style.
Description
Technical field
The present invention relates to building fields, and in particular, to a kind of curved beam prefabricated construction method of curved bridge.
Background technology
With the development of urban road and highway communication, curved bridge has become Modern Traffic engineering using increasingly extensive
In important bridge type.Curved bridge construction method is main or based on cast-in-place, and relatively large radius curved bridge can also be taken pre-
Beam blade technolgy processed directly does mode by curve to realize.
Therefore, in order to more fully show curved bridge line style, meet bridge Horizontal Curve requirement, urgent need will provide one
The new curved beam prefabricated construction method of curved bridge of kind.
Invention content
The object of the present invention is to provide a kind of curved beam prefabricated construction method of curved bridge, which has broken curved bridge
The common process of cast-in-place construction limits to, and takes curve song to do technique, meets bridge Horizontal Curve requirement, fully show curved bridge
Line style.
To achieve the goals above, the present invention provides a kind of curved beam prefabricated construction methods of curved bridge, including：
Step a, mounting rail rib and diaphragm plate reinforcing bar；
Step b, bellows is installed；
Step c, installation form；
Step d, slab reinforcement is installed；
Step e, hogging moment bellows is installed；
Step f, concreting；
Step g, maintenance and form removal；
Step h, prestressed stretch-draw and mud jacking；Wherein,
Internal lining pipe is worn in bellows, and tensioning is influenced for mortar leakage prevention.
Preferably, step a includes indicating reinforcement location line on pedestal according to drawing assembling reinforcement, and reinforcing bar is placed by line,
And it will be welded and fixed intersection in length and breadth；Wherein,
Ensure that pipeline location is constant and will move reinforcement location at pipeline and reinforcing bar collision.
Preferably, step b includes being fixed according to the coordinate setting bellows on drawing and with spacer bar.
Preferably, step c includes：1, using sizing punching block assembled formwork, wherein plate thickness is more than or equal to 6mm；2, make
It will be interconnected and fixed between each template with bolt, wherein embedded fixed type elasticity caulking strip among plate stitch；3, by the side bar edge of a wing
Plate working width is processed according to Curve Design parameter maximum width, then mixes adjustable movable edge of a wing edges of boards mould；4, template is marched into the arena
It needs to carry out processing of rust removing to template before installation and brushes releasing agent；5, it installs, connect, fixing side form, bed die and end mould.
Preferably, bellows is reserved in form stop when hogging moment area bellows is installed in step e to connect for upper bridging.
Preferably, in step f concrete cast using it is oblique segmentation, horizontal slice continuous placing mode, front and back two layers of concrete
Interval time must not exceed the presetting period；
Vibrating for beam body concrete is vibrated using form vibrator, the common cooperation of plug-in type vibrating stick；Horseshoe position concrete
When entering mould, corresponding position form vibrator is started, is shaken to concrete compaction；When pouring web and upper limb board concrete, vibrate
As a plug based on vibrating head, reinforcing bar is closeer and the intensive place of bellows, cooperation form vibrator vibrate.
Preferably, further include that troweling is carried out to back using wooden float after the completion of beam body concreting in step f,
It carries out once receiving slurry processing again before initial set, finally uses steel brush or broom plucking；
During concreting, the bellows internal lining pipe of Liang Leichu need to be twitched manually, before pouring and finishing concrete initial set,
Extract internal lining pipe out.
Preferably, maintenance includes being covered using geotextiles after beam piece plucking in step g, and watering, which conserves, prevents surface drying shrinkage from splitting
Seam is conserved after form removal using spray, and is subject to hand fit's maintenance；
Form removal, which is included in after beam body concrete strength reaches strength of mould stripping requirement, carries out form removal, wherein is segmented in order when form removal
It removes, dabbing is carried out to beam body surface immediately after dismounting.
Preferably, stretch value is recorded in the stretching process in step h, pressure gauge reading is extended using control force and control
The dual control method of value carries out cable tensios control；Also, duct must be rinsed well with clear water before mud jacking, front row is clogged after waiting discharge underflow
Stomata pressure and fill is starched, and the voltage stabilizing phase equal to 0.6Mpa is remained above, and time voltage stabilizing phase is more than or equal to 2min.
According to above-mentioned technical proposal, the present invention is by changing traditional side bar punching block processing and fabricating mode, by the side bar edge of a wing
Plate working width considers according to Curve Design parameter maximum width, then mixes adjustable movable edge of a wing edges of boards mould, to the system of processing
Be made it is a set of can meet straight line, Curve requirement universal sideshields beam forms, precast curve side bar, it is beautiful to reach curved bridge line style
The effect of sight.It has broken the common process limitation of curved bridge cast-in-place construction, and extend Prestressed T (cored slab) beam applies model
It encloses.Also, moulding board of precast beam processing and fabricating is simple, versatile, linear type and shaped form beam piece energy Prefabrication, work of constructing
Skill is simple, and quality is guaranteed, is widely used in the curved bridge of radius R >=200m.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the curved beam side mould template of curve in the present invention；
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality that " inside and outside " etc. is included in the term only represents
Orientation of the term under normal service condition, or be those skilled in the art understand that be commonly called as, and be not construed as to the term
Limitation.
The present invention provides a kind of curved beam prefabricated construction method of curved bridge, including：
Step a, mounting rail rib and diaphragm plate reinforcing bar；
Step b, bellows is installed；
Step c, installation form；
Step d, slab reinforcement is installed；
Step e, hogging moment bellows is installed；
Step f, concreting；
Step g, maintenance and form removal；
Step h, prestressed stretch-draw and mud jacking；Wherein,
Internal lining pipe is worn in bellows, and tensioning is influenced for mortar leakage prevention.
Steel bar meter is with installation, and reinforcing bar is processed in unified make of reinforcing steel processing shed, in strict accordance with design drawing and specification
It is required that test to its model, size, presentation quality, when blanking, pays attention to the reinforcing bar length of side bar curvilinear motion section.
It is strictly bound by drawing when reinforcement installation, reinforcement location line is indicated on pedestal, place reinforcing bar by line, in length and breadth
Intersection ensures that framework of steel reinforcement is stable, vertical when necessary using welding.If pipeline collides with reinforcing bar, pipeline should ensure that
Position is constant and suitably moves reinforcement location.
Coordinate setting that the installation of wave duct pipe must be provided strictly by design drawing is simultaneously fixed, bellows with spacer bar
Junction must be close, and bellows pipe shaft is without breakage, mortar leakage prevention.It, must be more in form stop when hogging moment area bellows is installed
Reserve certain length bellows, it is ensured that bellows smoothly connects after upper bridge.It is anti-that internal lining pipe must be worn in bellows in construction
Leak-stopping is starched and influences tensioning.
Template is processed with installation：1, select qualified steel construction processing factory to be processed, strictly control blanking,
It bends and welding procedure, ensures that each portion structure size of beam body is correct and built-in fitting position is accurate.Template is using bulk sizing steel
Mould is assembled, and plate thickness is not less than 6mm, is connected between each template, and embedded fixed type elasticity caulking strip among plate stitch is protected
Spillage and beam body be not beautiful for card.
2, the curved beam of curve is pressed side bar flange plate working width by changing traditional side bar punching block processing and fabricating mode
Consider according to Curve Design parameter maximum width, then mixes adjustable movable edge of a wing edges of boards mould, it is full to manufacture a set of energy
The universal sideshields beam forms that sufficient straight line, Curve require, the wherein curved beam side mould template of curve are as depicted in figs. 1 and 2.
3, processing of rust removing should be carried out after template is marched into the arena to template and brush releasing agent, when installation, requires to accomplish that position is accurate,
It is completely embedded, side form and bed die, the end closely connected not spillage of mould.When horizontal slope is arranged in beam piece, beam wing plate must be prefabricated by horizontal slope.It is pre-buried
Part is accurately arranged, and whether especially bearing steel plate setting horizontal, upper and lower pull rod and prop up mat piece in template, fastener is not intact
It is complete.
In concreting, specifically include：
1, concrete be cast in reinforcing bar and template acceptance(check) after carry out, concrete unifies mixing using mixing plant, sternly
Lattice control match ratio and duration of mixing, and the cast of testing crew footman's operation, concrete is poured using oblique segmentation, the continuous of horizontal slice
Mode is built, the interval time of front and back two layers of concrete must not exceed the presetting period；
2, vibrating for beam body concrete is vibrated using form vibrator, the common cooperation of plug-in type vibrating stick.Horseshoe position coagulation
When soil enters mould, corresponding position form vibrator is started, is shaken to concrete compaction, sky is forbidden to shake template.Pour web and upper limb
When board concrete, based on the vibrating head as a plug that vibrates, reinforcing bar is closeer and the intensive place of bellows, cooperation form vibrator shake
It smashes.Concrete vibrating is generally no longer sunk with concrete, and no notable bubble rises, and thin layer cement mortar occurs in concrete surface, and
Until having uniform appearance and plane；
3, the temperature of concrete mixed material should be no more than 32 ° when hot weather construction, effective cooling should be used to prevent when more than 32 °
Evaporation measure, the template contacted with concrete, reinforcing bar should be reduced to 32 ° or less before cast using effective measures；
4, after the completion of beam body concreting, troweling is carried out to back using wooden float, is carried out again before initial set primary
Slurry processing is received, steel brush or broom plucking are finally used；
5, during concreting, the bellows internal lining pipe of Liang Leichu need to be twitched manually, and concrete initial set is finished pouring
Before, extract internal lining pipe out；
6, the prefabricated of beam piece will have real curing to give birth to test block, and test block will be placed on beam piece top plate, simultaneously, together with the beam piece
Condition health.
It in maintenance and form removal, is covered using geotextiles after beam piece plucking, watering maintenance prevents surface desciccation crack, after form removal
It is conserved using special spray, and is subject to hand fit's maintenance, curing time is no less than 7 days, is ensured daily
Concrete surface is often in moisture state.When temperature be less than 5 °, answer covering and heat insulating, must not sprinkle water on concrete face.
After beam body concrete strength reaches strength of mould stripping requirement, form removal can be carried out.Dismounting is segmented when form removal in order, it must not
There are the templates for loosening or hanging, and forbid to pound firmly or be pushed over mechanical large area, avoid causing template local deformation or damage beam
Body concrete corner angle, when handling template, will balance, and prevent damage beam body and adjacent forms.After form removable, immediately to beam body surface into
Row dabbing.
In prestressed stretch-draw and mud jacking process, steel strand wires and anchor clamp have a product certificate, and by pass the test after
It can use, jack and mating oil pump are demarcated in time.Corresponding elongation and oil meter reading are calculated according to test data.
Tensioning must after T beam strengths reach the 90% of design, and the age of concrete be not less than 10d, can tensioning, and and
When mud jacking.Meet design requirement in beam camber, can according to temperature, deposit the factors such as beam time, it is appropriate to shorten concrete
Age is drawn, but most short age is no less than 7d.
In stretching process, stretch value, pressure gauge reading, using the dual control of control force and control stretch value are recorded in detail
Method carries out cable tensios control, if actual elongation value and theoretic elongation are more than ± 6%, waits ascertaining the reason and after taking measures, can
Continue tensioning.
Duct must be rinsed well with clear water before mud jacking, mud jacking carries out with answering slow uniformly continuous, waits discharge underflow rear plug
Firmly front-seat stomata pressure and fill slurry, is kept for a voltage stabilizing phase not less than 0.6Mpa, time voltage stabilizing phase are no less than 2min, and without leakage
Water, spillage phenomenon make the liquid-tight reality of pipeline entoplasm.
Side bar flange plate is processed by changing traditional side bar punching block processing and fabricating mode according to above-mentioned technical proposal
Width considers according to Curve Design parameter maximum width, then mixes adjustable movable edge of a wing edges of boards mould, to manufacture one
Set can meet straight line, Curve requirement universal sideshields beam forms, precast curve side bar, reach the effect of curved bridge line style beauty
Fruit.It has broken the common process limitation of curved bridge cast-in-place construction, extends the application range of Prestressed T (cored slab) beam.And
And moulding board of precast beam processing and fabricating is simple, versatile, linear type and shaped form beam piece energy Prefabrication, construction technology letter
Single, quality is guaranteed, is widely used in the curved bridge of radius R >=200m.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (9)
1. a kind of curved beam prefabricated construction method of curved bridge, which is characterized in that including：
Step a, mounting rail rib and diaphragm plate reinforcing bar；
Step b, bellows is installed；
Step c, installation form；
Step d, slab reinforcement is installed；
Step e, hogging moment bellows is installed；
Step f, concreting；
Step g, maintenance and form removal；
Step h, prestressed stretch-draw and mud jacking；Wherein,
Internal lining pipe is worn in bellows, and tensioning is influenced for mortar leakage prevention.
2. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that step a includes according to figure
Paper assembling reinforcement indicates reinforcement location line on pedestal, places reinforcing bar by line, and will be welded and fixed intersection in length and breadth；Wherein,
Ensure that pipeline location is constant and will move reinforcement location at pipeline and reinforcing bar collision.
3. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that step b includes according to figure
Coordinate setting bellows on paper is simultaneously fixed with spacer bar.
4. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that step c includes：1, it uses
Sizing punching block assembled formwork, wherein plate thickness are more than or equal to 6mm；2, it will be interconnected and fixed between each template using bolt,
Wherein embedded fixed type elasticity caulking strip among plate stitch；3, side bar flange plate working width is maximum wide according to Curve Design parameter
Degree processing, then mix adjustable movable edge of a wing edges of boards mould；4, template marches into the arena and needs to template processing of rust removing and brush before installation
Releasing agent；5, it installs, connect, fixing side form, bed die and end mould.
5. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that installed in step e negative curved
Bellows is reserved when square area bellows in form stop to connect for upper bridging.
6. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that the cast of concrete in step f
Using the continuous placing mode of oblique segmentation, horizontal slice, the interval time of front and back two layers of concrete must not exceed the presetting period；
Vibrating for beam body concrete is vibrated using form vibrator, the common cooperation of plug-in type vibrating stick；Horseshoe position concrete enters mould
When, corresponding position form vibrator is started, is shaken to concrete compaction；When pouring web and upper limb board concrete, vibrate to insert
Enter based on formula vibrating head, reinforcing bar is closeer and the intensive place of bellows, cooperation form vibrator vibrate.
7. the curved beam prefabricated construction method of curved bridge according to claim 6, which is characterized in that further include in step f
After the completion of beam body concreting, troweling is carried out to back using wooden float, carries out once receiving slurry processing again before initial set, finally
With steel brush or broom plucking；
During concreting, the bellows internal lining pipe of Liang Leichu need to be twitched manually, before pouring and finishing concrete initial set, extraction
Internal lining pipe.
8. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that in step g maintenance include
It is covered using geotextiles after beam piece plucking, watering maintenance prevents surface desciccation crack, is carried out using spray maintenance of equipment after form removal
Maintenance, and it is subject to hand fit's maintenance；
Form removal, which is included in after beam body concrete strength reaches strength of mould stripping requirement, carries out form removal, wherein dismounting is segmented when form removal in order,
Dabbing is carried out to beam body surface immediately after dismounting.
9. the curved beam prefabricated construction method of curved bridge according to claim 1, which is characterized in that the tensioning in step h
Stretch value is recorded in journey, pressure gauge reading carries out cable tensios control using the dual control method of control force and control stretch value；Also, it presses
Duct must be rinsed well with clear water before slurry, clogs front exhaust hole pressure and fill slurry after waiting discharge underflow, be remained above and be equal to
The voltage stabilizing phase of 0.6Mpa, time voltage stabilizing phase are more than or equal to 2min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314286.9A CN108544655A (en) | 2018-04-10 | 2018-04-10 | The curved beam prefabricated construction method of curved bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314286.9A CN108544655A (en) | 2018-04-10 | 2018-04-10 | The curved beam prefabricated construction method of curved bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108544655A true CN108544655A (en) | 2018-09-18 |
Family
ID=63514546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810314286.9A Pending CN108544655A (en) | 2018-04-10 | 2018-04-10 | The curved beam prefabricated construction method of curved bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108544655A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820513A (en) * | 2019-11-22 | 2020-02-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Alignment construction method for diaphragm plate of prefabricated concrete T beam of curved bridge |
| CN111576232A (en) * | 2020-05-29 | 2020-08-25 | 四川路航建设工程有限责任公司 | Linear control construction method for precast beam top plate |
| CN112342934A (en) * | 2020-12-18 | 2021-02-09 | 中交三公局第三工程有限公司 | Construction method of high-stability curve bridge plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040094076A (en) * | 2003-05-01 | 2004-11-09 | 이형훈 | Bridge construction method using precast prestressed concrete beam manufacturing method for straight and curved bridge |
| CN202187296U (en) * | 2011-07-25 | 2012-04-11 | 中建七局第三建筑有限公司 | Adjustable T beam curb girder template |
| CN103469734A (en) * | 2013-09-25 | 2013-12-25 | 中铁十六局集团第三工程有限公司 | Negative-bending-moment corrugated pipe duct grouting construction method |
| CN105345926A (en) * | 2015-09-25 | 2016-02-24 | 安徽水利开发股份有限公司 | Prefabricated construction method for prestressed concrete box girder |
| CN107090777A (en) * | 2017-06-02 | 2017-08-25 | 国家电网公司 | A kind of T beam manufacture methods for reducing blibbing |
-
2018
- 2018-04-10 CN CN201810314286.9A patent/CN108544655A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040094076A (en) * | 2003-05-01 | 2004-11-09 | 이형훈 | Bridge construction method using precast prestressed concrete beam manufacturing method for straight and curved bridge |
| CN202187296U (en) * | 2011-07-25 | 2012-04-11 | 中建七局第三建筑有限公司 | Adjustable T beam curb girder template |
| CN103469734A (en) * | 2013-09-25 | 2013-12-25 | 中铁十六局集团第三工程有限公司 | Negative-bending-moment corrugated pipe duct grouting construction method |
| CN105345926A (en) * | 2015-09-25 | 2016-02-24 | 安徽水利开发股份有限公司 | Prefabricated construction method for prestressed concrete box girder |
| CN107090777A (en) * | 2017-06-02 | 2017-08-25 | 国家电网公司 | A kind of T beam manufacture methods for reducing blibbing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820513A (en) * | 2019-11-22 | 2020-02-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Alignment construction method for diaphragm plate of prefabricated concrete T beam of curved bridge |
| CN111576232A (en) * | 2020-05-29 | 2020-08-25 | 四川路航建设工程有限责任公司 | Linear control construction method for precast beam top plate |
| CN112342934A (en) * | 2020-12-18 | 2021-02-09 | 中交三公局第三工程有限公司 | Construction method of high-stability curve bridge plate |
| CN112342934B (en) * | 2020-12-18 | 2022-04-19 | 中交三公局第三工程有限公司 | Construction method of high-stability curve bridge plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106284080B (en) | Continuous rigid frame aqueduct closes up section constructing method | |
| CN105649197B (en) | Rear pouring tape construction method of Afforestation Landscape under the conditions of in advance | |
| CN107268878A (en) | The fabrication and installation method of prefabricated sandwich wallboard | |
| CN108544655A (en) | The curved beam prefabricated construction method of curved bridge | |
| CN106150523B (en) | A kind of Railway Tunnel ditch cable trench integral mold plate construction | |
| CN103899088A (en) | Construction method for large-span ultra-thin ultra-long cast-in-situ bare concrete plank | |
| CN107090777A (en) | A kind of T beam manufacture methods for reducing blibbing | |
| CN105666687A (en) | Construction process for pre-stress reactive powder concrete box girder | |
| CN108532466A (en) | A kind of bridge pier over-form construction technique | |
| CN105128131A (en) | Method for manufacturing prestressed hollow slab beam through polystyrene foam | |
| CN107476567A (en) | It is a kind of to control the pitched roof gradient and the construction method and track-type facilities of thickness | |
| CN110468638A (en) | A kind of road bed board concreting and plastering technique | |
| CN108638322B (en) | Prefabricated post concreting method in a kind of assembled architecture | |
| CN110306791A (en) | Superelevation clear-water concrete independence cylinder construction method | |
| CN106284789A (en) | For controlling the construction technology of cast-in-situ floor Forming Quality | |
| JPS6156393B2 (en) | ||
| CN106968398A (en) | A kind of process that support column is poured below balcony | |
| CN111516096A (en) | Precast column concrete pouring method in fabricated building | |
| CN206941968U (en) | Reinforcing bar limiting card with the upper oblique bayonet socket being parallel to each other | |
| CN109304796A (en) | A kind of construction technology of concrete steel formwork | |
| CN115538316A (en) | Pier column construction method | |
| CN106192699B (en) | A kind of same phase out-phase road surface cutting method and device | |
| CN109487691A (en) | Bridge rectangle variable cross-section hollow pier construction method | |
| CN106638672B (en) | A kind of construction method effectively reducing piping lane haunch area concrete formation bubble | |
| CN104234315B (en) | Three-back-shaped external wall rod structure and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |