CN106320184B - A kind of unit construction bridge beam construction method - Google Patents
A kind of unit construction bridge beam construction method Download PDFInfo
- Publication number
- CN106320184B CN106320184B CN201610870798.4A CN201610870798A CN106320184B CN 106320184 B CN106320184 B CN 106320184B CN 201610870798 A CN201610870798 A CN 201610870798A CN 106320184 B CN106320184 B CN 106320184B
- Authority
- CN
- China
- Prior art keywords
- bridge
- prefabricated
- tower crane
- prefabricated bridge
- steel plate
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Invention provides a kind of unit construction bridge beam construction method, solves transport difficult existing in the prior art, the problems such as time consumption amount is big, ensure that the safe and efficient progress of bridge construction.It is fast using prefabricated assembled construction method, speed of application.Adjacent two pieces of prefabricated bridges, are connected using steel plate.It ensure that the integrality of structure, more securely and reliably.Using oblique pull steel strand wires connection prefabricated bridge and tower crane in work progress, it ensure that the stability of floorings, ensured the security that construction personnel operates on floorings.
Description
Technical field
The present invention relates to technical field of bridge engineering, more particularly to a kind of unit construction bridge beam construction method.
Background technology
China is in infrastructure construction period energetically, and since 21st century, highway in China and railway are annual
The mileage of construction is all with up to ten thousand kilometers of meterings, and the requirement planned according to " 12th Five-Year Plan ", to the end of the year 2015, kilometer total kilometrage is up to
4500000 kilometers, railway construction mileage is also up to 120,000 kilometers.And the thought planned according to " 13 ", with improving Midwest
The transportation network in area will become emphasis, and relative complex for central and west regions, topographic and geologic condition, gully in length and breadth, in order to
Shorten the transit time of two places and ensure the comfort level of driving, it is necessary to build substantial amounts of bridge.
Cut-off 2013, highway in China bridge is to reach 71.34 ten thousand, and in order to control cost, most of bridge uses
The structural system of beam bridge and rigid frame bridge, for the bridge construction of both structural systems, uses more for overall dress at present
With formula or hanging construction method, if using overall assembled construction method, it is necessary to which big machinery transports large-scale floorings
To assembled in situ, and general bridge construction is all carried out in mountainous region in middle and western China, is had inconvenient traffic, so transport is difficult to realize；And for
Hanging construction method, is typically constructed forward, then closed up at middle part at the same time using bridge both ends.In progradation, pour
It after the intensity that the concrete built needs the regular hour to reach certain, can continue to push ahead, can so waste big
It is the time of amount, very unfavorable for duration very tight engineering；There is certain intensity additionally, due to the concrete first poured,
Therefore can not merge to form entirety completely at contact surface with the concrete of after-pouring, and then to the bearing capacity of bridge not
Profit, while cradle construction, equivalent to Cantilever Beam Construction, can form excessive deflection deformation, so may be due to scratching at middle part
The requirement of deformation can not be met greatly by spending, and cause engineering insecurity.
The content of the invention
The object of the present invention is to provide a kind of unit construction bridge beam construction method, and it is tired to solve transport existing in the prior art
Difficult, the problems such as time consumption amount is big, ensure the safe and efficient progress of bridge construction.
To realize that the technical solution that the object of the invention uses is a kind of such, construction method of packaged type bridges, bag
Include following steps：
1) field condition is reconnoitred, determines the specific size of bridge, the position of embankment A, the position of embankment B and two bridge piers
Position.
2) prefabricated bridge that polylith global shape is cuboid is poured, and prefabricated bridge is carried out according to code requirement
Concrete curing.
Wherein：Reinforcing bar is embedded with the prefabricated bridge.Two faces of the prefabricated bridge in transverse direction are side
Face, two faces along the longitudinal direction are end face.The lateral length of the prefabricated bridge is equal to bridge deck width, prefabricated bridge
Longitudinal length is 2~5m.The top surface of every piece of prefabricated bridge is embedded with several closing drag hooks.The two of every piece of prefabricated bridge
On a side groove is provided with close to endface.After the end face of two pieces of prefabricated bridges is close to, two adjacent grooves are formed and connected
Connect the groove interface of steel plate cooperation.
3) according to two bridge piers of design requirement cast in situs, one end of the reinforcing bar of specified quantity is erect in advance by design distribution
It is embedded in bridge pier.
4) bridge pier is conserved according to the requirement of specification regulation.
5) standard section of tower crane of tower crane is reinforced：Some cross bars of welding and angle steel in standard section of tower crane.Tower crane standard
Section welds polylith tension steel plate along the both sides of bridge longitudinal direction.
6) tower crane is set up in pier coping portion.The tower crane is connected with bridge pier using high-strength bolt.Reinforcing bar described in step 3)
Through the bottom plate of tower crane.
7) further consolidation process is carried out to tower crane bottom.
8) one rubber support is installed respectively in embankment A and embankment B.
9) prefabricated bridge is transported to construction site.
10) sequentially it is laid with polylith prefabricated bridge along bridge longitudinal direction：Using tower crane one piece of prefabricated bridge lift to
Designated position.The tower body of prefabricated bridge and tower crane is connected using oblique pull steel strand wires.Lift next piece of prefabricated bridge and reach and refer to
Positioning is put, and the tower body of prefabricated bridge and tower crane is connected using oblique pull steel strand wires.Junction steel plate uses high-strength bolt and/or welding
Two pieces of adjacent prefabricated bridges are fixedly connected by mode.Similarly continue to place prefabricated bridge until reaching design quantity.
Wherein：Oblique pull steel strand wires one end is welded on tension steel plate, and the other end passes through the closing drag hook of prefabricated bridge simultaneously
Anchored.Adjacent two pieces of prefabricated bridge either flush, end face is close together.Junction steel plate is embedded in adjacent two pieces completely
In the groove interface of the groove composition of prefabricated bridge.
11) tower crane is removed to bridge floor height.Poured and prefabricated bridge concrete in remaining standard section of tower crane position
The consistent normal concrete of strength grade.Thus the prefabricated bridge layer of bridge floor is formed.
12) asphalt concrete layer is poured on prefabricated bridge layer top.
Further, after completing step 12), bridge floor is beautified and recycles obsolete material.
Further, the reinforcing bar described in step 3) stretches into 1/3rd of bridge pier length not less than bridge pier height, stretches out bridge pier
The length at top is 200~500mm.
Further, one end of the reinforcing bar stretching pier coping portion described in step 3) is tapped.In step 6), the reinforcing bar
Through after the bottom plate of tower crane, high-strength nut screws in the screw thread of these steel bar ends.
The packaged type bridges that a kind of construction method by above-mentioned packaged type bridges is built up, including bridge floor, two bridge piers and
Two rubber supports.
The bridge floor is erected between embankment A and embankment B.The bridge floor uses direct puncture bar connecting with bridge pier.The bridge
Rubber support is installed between face and embankment.
The bridge floor includes prefabricated bridge layer and asphalt concrete layer.The asphalt concrete layer is laid on prefabricated bridge floor
On flaggy, and with prefabricated bridge layer tight bond.
The prefabricated bridge layer includes the prefabricated bridge that polylith is longitudinally sequentially laid with along bridge.The prefabricated bridge floor
Plate top surface is concordant.The prefabricated bridge layer also has some groove interfaces along the both sides in bridge deck width direction.Contiguous prefabricated bridge
Panel is connected by the inserting of junction steel plate and groove interface.The junction steel plate will be adjacent using the form of high-strength bolt
Prefabricated bridge is fixed as entirety.
Further, the seam shape of contiguous prefabricated floorings is flush joint, rabbet-shaped or zigzag.
Further, applied in the seam of contiguous prefabricated floorings and be formed with fluid sealant.
The solution have the advantages that unquestionable：
A) the prefabricated bridge by the way of in-situ precast or prefabrication, it is only necessary to which small-sized transporting equipment can be realized
Component conveying, overcomes the problem that remote mountain areas larger transport devices can not march into the arena；
B prefabricated assembled construction method) is used, speed of application is fast, when the maintenance constructed there is no basket-hanging forms intensity
Between, the construction period can be shortened；
C adjacent two pieces of prefabricated bridges) are connected using steel plate, ensure that the integrality of structure, while Hanging Basket is also not present
Cast-in-place concrete and rear pouring concrete present in formula construction can not be fully warm situation, more securely and reliably；
D the stability of floorings) ensure that using oblique pull steel strand wires connection prefabricated bridge and tower crane in work progress,
The security that construction personnel operates on floorings is ensured；
E) connected using prefabricated components steel plate, the construction period is short, and economic value is fairly obvious.
Brief description of the drawings
Fig. 1 is unit construction bridge working drawing of beam；
Fig. 2 is prefabricated bridge structure diagram；
Fig. 3 is floorings connection figure；
Fig. 4 is standard section of tower crane schematic diagram；
Fig. 5 is tower crane and bridge pier connection figure；
Fig. 6 is packaged type bridges structure diagram.
In figure：Rubber support 1, bridge pier 2, reinforcing bar 201, junction steel plate 3, threaded hole I 301, prefabricated bridge 4, side
401, end face 402, groove 403, threaded hole II 4031, closes drag hook 404, groove interface 405, oblique pull steel strand wires 5, tower crane 6, bottom
Plate 601, tension steel plate 602, asphalt concrete layer 7.
Embodiment
With reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all be included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of construction method of packaged type bridges, referring to Fig. 1~Fig. 6, comprises the following steps：
1) field condition is reconnoitred, determines the specific size of bridge, the position of embankment A, the position of embankment B and two bridge piers 2
Position.
2) pour polylith global shape be cuboid prefabricated bridge 4, and according to code requirement to prefabricated bridge 4 into
Row concrete curing.Reinforcing bar is embedded with these prefabricated bridges 4；
Wherein：Two faces of the prefabricated bridge 4 in transverse direction are side 401, and two faces along the longitudinal direction are
End face 402.The lateral length of the prefabricated bridge 4 is equal to bridge deck width, and the longitudinal length of prefabricated bridge 4 is 2~5m.Often
The top surface of block prefabricated bridge 4 is embedded with 2 closing drag hooks 404.It is close on two sides 401 of every piece of prefabricated bridge 4
Groove 403 is provided with end face 402.After the end face 402 of two pieces of prefabricated bridges 4 is close to, two adjacent grooves 403 are formed and connected
Connect the groove interface 405 of the cooperation of steel plate 3.4 row's threaded holes I 301 are provided with the junction steel plate 3, often arrange 8.The groove connects
Threaded hole II 4031 is also provided with 405 correspondence positions of mouth.
3) according to two bridge piers 2 of design requirement cast in situs, one end of the reinforcing bar 201 of specified quantity is erected by design distribution
It is vertical to be embedded in bridge pier 2.One end that these reinforcing bars 201 stretch out the top of bridge pier 2 is tapped.These reinforcing bars 201 stretch into bridge pier length
For degree not less than 1/3rd of bridge pier height, the length for stretching out pier coping portion is 200~500mm.
4) bridge pier 2 is conserved according to the requirement of specification regulation.
5) standard section of tower crane of tower crane 6 is reinforced：Welding cross bar and angle steel in standard section of tower crane.Standard section of tower crane edge
The both sides welding polylith tension steel plate 602 of bridge longitudinal direction.
6) tower crane 6 is set up at the top of bridge pier 2.Bridge pier 2 and tower crane 6 are fixed together by high-strength bolt.Step 3)
After the reinforcing bar 201 passes through the bottom plate 601 of tower crane 6, high-strength nut is tightened on the screw thread of 201 termination of reinforcing bar.
7) further reinforced with lower part, welding cross bar and angle steel to 1/3rd of tower crane bottom, that is, total height
Handle to ensure that tower crane and bridge pier form overall work.
8) one rubber support 1 is installed respectively in embankment A and embankment B.
9) transport prefabricated bridge 4 arrives construction site.
10) sequentially it is laid with polylith prefabricated bridge 4 along bridge longitudinal direction：One piece of prefabricated bridge 4 is lifted using tower crane 6
To designated position.The tower body of prefabricated bridge 4 and tower crane 6 is connected using oblique pull steel strand wires 5.Lift next piece of prefabricated bridge 4
Designated position is reached, the tower body of prefabricated bridge 4 and tower crane 6 is connected using oblique pull steel strand wires 5.Will be adjacent using junction steel plate 3
Two pieces of prefabricated bridges 4 be fixedly connected.Similarly continue to place prefabricated bridge 4 until reaching design quantity.
Wherein：5 one end of oblique pull steel strand wires is welded on tension steel plate 602, and the closing of the other end through prefabricated bridge 4 is drawn
Hook 404 is simultaneously anchored.4 either flush of adjacent two pieces of prefabricated bridges, end face 402 is close together.Junction steel plate 3 is inlayed completely
In the groove interface 405 formed embedded in the groove 403 of adjacent two pieces of prefabricated bridges 4.High-strength bolt 302 penetrates threaded hole successively
I 301 and threaded hole II 4031, adjacent two pieces of prefabricated bridges 4 are fixed together.Prefabricated bridge 4 away from tower crane 6
It is connected with the standard knot at the top of tower body, the prefabricated bridge 4 close to tower crane 6 is connected with the standard knot of tower body bottom.
11) tower crane 6 is removed to bridge floor height.Poured in remaining standard section of tower crane position and 4 coagulation of prefabricated bridge
The consistent normal concrete of native strength grade.Thus the prefabricated bridge layer of bridge floor is formed.
12) asphalt concrete layer 7 is poured on prefabricated bridge layer top.
13) bridge floor is beautified and recycles obsolete material.
Embodiment 2
The present embodiment discloses the packaged type bridges that a kind of construction method by packaged type bridges described in embodiment 1 is built up,
Including bridge floor, two bridge piers 2 and two rubber supports 1.
Referring to Fig. 6, the bridge floor is erected between embankment A and embankment B.The bridge floor is connected with bridge pier 2 using direct puncture reinforcing bar
Connect.Rubber support 1 is installed between the bridge floor and embankment.
The bridge floor 1 includes prefabricated bridge layer and asphalt concrete layer 7.The asphalt concrete layer 7 is laid on prefabricated
On bridge floor flaggy, and with prefabricated bridge layer tight bond.
The prefabricated bridge layer includes the prefabricated bridge 4 that polylith is longitudinally sequentially laid with along bridge.The polylith is pre-
4 either flush of floorings processed.The prefabricated bridge layer also has groove interface 405 along the both sides in bridge deck width direction.It is adjacent
Prefabricated bridge 4 is connected by the inserting of junction steel plate 3 and groove interface 405.The junction steel plate 3 uses high-strength bolt
Form contiguous prefabricated floorings 4 are fixed as entirety.The seam shape of contiguous prefabricated floorings 4 is flush joint, and contiguous prefabricated
Applied in the seam of floorings 4 and be formed with fluid sealant.
Claims (7)
- A kind of 1. construction method of packaged type bridges, it is characterised in that：Comprise the following steps：1) field condition is reconnoitred, determines the specific size of bridge, the position of embankment A, the position of embankment B and two bridge piers (2) Position；2) pour polylith global shape be cuboid prefabricated bridge (4), and according to code requirement to prefabricated bridge (4) into Row concrete curing；Wherein：Reinforcing bar is embedded with the prefabricated bridge (4)；Two faces of the prefabricated bridge (4) in transverse direction are Side (401), two faces along the longitudinal direction are end face (402)；It is wide that the lateral length of the prefabricated bridge (4) is equal to bridge floor Degree, the longitudinal length of prefabricated bridge (4) is 2~5m；The top surface of every piece of prefabricated bridge (4) is embedded with several closings and draws Hook (404)；On two sides (401) of every piece of prefabricated bridge (4) groove (403) is provided with by proximal end face (402) place；Two pieces After the end face (402) of prefabricated bridge (4) is close to, two adjacent grooves (403) form the groove coordinated with junction steel plate (3) and connect Mouth (405)；3) according to two bridge piers (2) of design requirement cast in situs, one end of the reinforcing bar (201) of specified quantity is erected by design distribution It is vertical to be embedded in bridge pier (2)；4) require to conserve bridge pier (2) according to specification regulation；5) standard section of tower crane of tower crane (6) is reinforced：Some cross bars of welding and angle steel in standard section of tower crane；Standard section of tower crane Along the both sides welding polylith tension steel plate (602) of bridge longitudinal direction；6) tower crane (6) is set up at the top of bridge pier (2)；The tower crane (6) is connected with bridge pier (2) using high-strength bolt；Step 3) institute The reinforcing bar (201) stated passes through the bottom plate (601) of tower crane (6)；7) further consolidation process is carried out to tower crane bottom；8) one rubber support (1) is installed respectively in embankment A and embankment B；9) transport prefabricated bridge (4) and arrive construction site；10) sequentially it is laid with polylith prefabricated bridge (4) along bridge longitudinal direction：One piece of prefabricated bridge (4) is hung using tower crane (6) It is filled to designated position；Use oblique pull steel strand wires (5) connection prefabricated bridge (4) and the tower body of tower crane (6)；Lift next piece it is prefabricated Floorings (4) reach designated position, use oblique pull steel strand wires (5) connection prefabricated bridge (4) and the tower body of tower crane (6)；Connection Two pieces of adjacent prefabricated bridges (4) are fixedly connected by steel plate (3) using high-strength bolt (302) and/or welding manner；Similarly after It is continuous to place prefabricated bridge (4) until reaching design quantity；Wherein：Oblique pull steel strand wires (5) one end is welded on tension steel plate (602), and the other end passes through the closing of prefabricated bridge (4) Drag hook (404) is simultaneously anchored；Adjacent two pieces of prefabricated bridges (4) either flush, end face (402) are close together；Connect steel Plate (3) is embedded in the groove interface (405) of groove (403) composition of adjacent two pieces of prefabricated bridges (4) completely；11) tower crane (6) is removed to bridge floor height；Poured in remaining standard section of tower crane position and prefabricated bridge (4) coagulation The consistent normal concrete of native strength grade；Thus the prefabricated bridge layer of bridge floor is formed；12) asphalt concrete layer (7) is poured on prefabricated bridge layer top.
- A kind of 2. construction method of packaged type bridges according to claim 1, it is characterised in that：After completing step 12), Bridge floor is beautified and recycles obsolete material.
- A kind of 3. construction method of packaged type bridges according to claim 1 or 2, it is characterised in that：Described in step 3) Reinforcing bar (201) stretches into 1/3rd that bridge pier length is not less than bridge pier height, and the length for stretching out pier coping portion is 200~500mm.
- A kind of 4. construction method of packaged type bridges according to claim 1 or 2, it is characterised in that：Described in step 3) One end that reinforcing bar (201) is stretched out at the top of bridge pier (2) is tapped；In step 6), the reinforcing bar (201) passes through tower crane (6) After bottom plate (601), high-strength nut screws in the screw thread of these reinforcing bar (201) terminations.
- A kind of 5. packaged type bridges that construction method by packaged type bridges described in claim 1 is built up, it is characterised in that：Bag Include bridge floor, two bridge piers (2) and two rubber supports (1)；The bridge floor is erected between embankment A and embankment B；Rubber support (1) is installed between the bridge floor and embankment；The bridge Face uses direct puncture bar connecting with bridge pier (2)；The bridge floor (1) includes prefabricated bridge layer and asphalt concrete layer (7)；The asphalt concrete layer (7) is laid on pre- On bridge floor flaggy processed, and with prefabricated bridge layer tight bond；The prefabricated bridge layer includes the prefabricated bridge (4) that polylith is longitudinally sequentially laid with along bridge；The prefabricated bridge floor Plate (4) either flush；The prefabricated bridge layer also has some groove interfaces (405) along the both sides in bridge deck width direction；Phase Adjacent prefabricated bridge (4) is connected by the inserting of the junction steel plate (3) and groove interface (405)；The junction steel plate (3) contiguous prefabricated floorings (4) are fixed as by entirety using the form of high-strength bolt.
- A kind of 6. packaged type bridges according to claim 5, it is characterised in that：The seam shape of contiguous prefabricated floorings (4) Shape is flush joint, rabbet-shaped or zigzag.
- A kind of 7. packaged type bridges according to claim 5 or 6, it is characterised in that：The seam of contiguous prefabricated floorings (4) Middle painting is formed with fluid sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870798.4A CN106320184B (en) | 2016-09-30 | 2016-09-30 | A kind of unit construction bridge beam construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870798.4A CN106320184B (en) | 2016-09-30 | 2016-09-30 | A kind of unit construction bridge beam construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106320184A CN106320184A (en) | 2017-01-11 |
| CN106320184B true CN106320184B (en) | 2018-05-08 |
Family
ID=57820546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610870798.4A Active CN106320184B (en) | 2016-09-30 | 2016-09-30 | A kind of unit construction bridge beam construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106320184B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968161B (en) * | 2017-05-18 | 2018-10-30 | 南京同力建设集团股份有限公司 | A kind of oblique pull foot bridge beam slab and building method |
| CN108951430B (en) * | 2018-08-31 | 2021-02-26 | 张跃 | Road and bridge field installation structure and method and crane |
| CN110886235B (en) * | 2019-12-21 | 2021-07-06 | 烟台仁晟工程设备有限公司 | Bridge construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115628A (en) * | 2006-11-06 | 2008-05-22 | Ohbayashi Corp | Construction method for elevated structure |
| CN201865037U (en) * | 2010-09-29 | 2011-06-15 | 郑州大学 | Assembly type hollow slab bridge transferring force by adopting bracket instead of ribbet |
| CN102733299A (en) * | 2012-07-13 | 2012-10-17 | 福州大学 | Novel assembly type steel concrete simple supported slab bridge hinge joint and construction method thereof |
| CN104074127A (en) * | 2014-06-30 | 2014-10-01 | 郑州大学 | Assembly type hollow slab bridge and construction method thereof |
| CN205259049U (en) * | 2015-11-20 | 2016-05-25 | 中建交通建设集团有限公司 | A assembly type decking for landing stage construction |
-
2016
- 2016-09-30 CN CN201610870798.4A patent/CN106320184B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115628A (en) * | 2006-11-06 | 2008-05-22 | Ohbayashi Corp | Construction method for elevated structure |
| CN201865037U (en) * | 2010-09-29 | 2011-06-15 | 郑州大学 | Assembly type hollow slab bridge transferring force by adopting bracket instead of ribbet |
| CN102733299A (en) * | 2012-07-13 | 2012-10-17 | 福州大学 | Novel assembly type steel concrete simple supported slab bridge hinge joint and construction method thereof |
| CN104074127A (en) * | 2014-06-30 | 2014-10-01 | 郑州大学 | Assembly type hollow slab bridge and construction method thereof |
| CN205259049U (en) * | 2015-11-20 | 2016-05-25 | 中建交通建设集团有限公司 | A assembly type decking for landing stage construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106320184A (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104929034B (en) | A kind of modularization steel reinforced concrete rapid construction small box girder bridge and its construction method | |
| CN107044177A (en) | A kind of assembly concrete shear wall fractionation, assembled attachment structure and connection method | |
| CN106320184B (en) | A kind of unit construction bridge beam construction method | |
| CN107794837A (en) | Suitable for the prefabricated assembled bridge pier and its construction method of middle meizoseismal area | |
| CN104631348A (en) | Transversely-widening splicing structure of three-dimensional prestress concrete continuous box girder bridge | |
| CN205421026U (en) | Cable loop wheel machine cable support tower | |
| CN108867310A (en) | The short rib T beam bridge of pretensioning prestressed concrete and its construction method | |
| CN109082998A (en) | Integral prefabricated steel plate combination girder construction and construction method | |
| CN203741730U (en) | T-shaped bridge reinforcing structure | |
| CN109653491A (en) | More gradient Sloping roof concrete construction methods | |
| CN102943440A (en) | Method for constructing bridges | |
| CN108716189A (en) | Large span T-steel structure beam sections for joining island bridge install closure method | |
| CN113638304B (en) | Concrete beam type bridge hidden cover beam structure system and construction method thereof | |
| CN206174195U (en) | Assembled concrete shear force wall split, assemble connection structure | |
| CN106759478B (en) | A kind of prefabricated piping lane construction method | |
| CN103711067A (en) | Transversely assembled corrugated steel web combined box girder with small number of supports and construction method thereof | |
| CN105672144B (en) | A kind of medium-small span bridges are reinforced with spelling wide structure and its construction method | |
| CN114892552A (en) | Box girder type bridge reconstruction construction method | |
| CN106087711A (en) | Antinode work beam-steel concrete top board-external prestressing combines T-shaped simply supported beam | |
| CN206090275U (en) | Assembled rectangular concrete -filled steel tube makes up truss bridge | |
| CN110042770A (en) | A method of using the original bridge of external prestressing steel Shu Tuokuan in length and breadth | |
| CN109594581A (en) | Cross a river segment pipe structure and its installation method | |
| CN106149877A (en) | Docking structure at concrete frame structure prefabricated post and beam slab node and method | |
| CN207003212U (en) | A kind of combined truss arch bridge | |
| CN212452316U (en) | Bridge with small box girders prefabricated in longitudinal sections |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |