CN109098100A - The advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring - Google Patents
The advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring Download PDFInfo
- Publication number
- CN109098100A CN109098100A CN201811117901.3A CN201811117901A CN109098100A CN 109098100 A CN109098100 A CN 109098100A CN 201811117901 A CN201811117901 A CN 201811117901A CN 109098100 A CN109098100 A CN 109098100A
- Authority
- CN
- China
- Prior art keywords
- web
- steel
- steel web
- construction
- segment
- 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.)
- Granted
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
- E01D21/10—Cantilevered erection
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the advanced installation engineering methods of web in Wavelike steel webplate continuous bridge cantilever pouring, it includes boom segments construction and closure section construction, hanging basket advancing synchronous push method is used in boom segments work progress, the advanced installation method of steel web is used in the boom segments work progress, and next segment steel web is installed using the strong period such as this section section concrete.Advantages of the present invention: using the advanced mounting technique of steel web, and the installation of steel web is advanceed to a upper segment and is carried out, and with the strong shared flow beat such as the concrete of a upper segment, shortens the segmental construction period；By the typical round bolt hole innovative design of closure section Wavelike steel webplate at nose circle shape long hole, side bolt hole is aligned when not only solving the installation of closure section Wavelike steel webplate, other side bolt hole misalignment problem, and solve the problems, such as because of temperature, concrete shrinkage, creeping etc. influences bring constructional difficulties, reduce Wavelike steel webplate bending deformation, construction benefit is improved, quality control on construction is reinforced.
Description
Technical field
The present invention relates to the advanced installation engineering methods of web in Wavelike steel webplate continuous bridge cantilever pouring, belong to building
Field of engineering technology.
Background technique
A kind of special construction of the variable cross-section Pre-Stressed Concrete Composite Box-Girder Bridge with Corrugated Steel Webs as variable cross-section continuous beam, but construction party
Method is as concrete variable cross-section Continuous Box Girder Bridge, using cantilever construction.According to incompletely statistics, so far, it is domestic build again and
More than 60 built Pre-Stressed Concrete Composite Box-Girder Bridge with Corrugated Steel Webs, the bridge of 70m or more across footpath are all made of Hanging Basket cantilever pouring.Hanging Basket is outstanding
Arm casting method is widely used in variable cross-section concrete box-beam bridge as a kind of conventional construction method.But for waveform steel abdomen
Board group mould assembling beam bridge, since structural system has differences, construction technology and conventional cantilever construction are different, so that Wavelike steel webplate
The cantilever construction of combination box beam bridge becomes complicated, in Hanging Basket type selecting, installation, needs to consider the easy for installation of steel web；Together
When processed in plant produced due to corrugated web, site operation needs to consider reasonable transport, Hoisting Program.However it is applied in segment
Work is seen on the occupied time, due to the installation of steel web, individually occupies a flow beat, is become compared to concrete web and is cut
Face Continuous Box Girder Bridge, a segmental construction period will extend 4~5 days.Currently construction or completed Wavelike steel webplate
One segment of the construction of PC combination box beam bridge, Normal practice needs 13~14 days.But continuous beam identical for across footpath, although wave
Shape steel web box girder segmental length can do longer, reduce cantilever number of segment, but the construction time of corresponding segment increase 40%~
50%, on total construction period, the advantage of Pre-Stressed Concrete Composite Box-Girder Bridge with Corrugated Steel Webs does not embody.
Although the new structure of Pre-Stressed Concrete Composite Box-Girder Bridge with Corrugated Steel Webs is widely used to China, external prestressing is applied
Work, Wavelike steel webplate installation etc. need, so that construction technology becomes complicated, compared with concrete web variable cross-section continuous beam,
The advantage of Pre-Stressed Concrete Composite Box-Girder Bridge with Corrugated Steel Webs is not obvious, especially on construction period, it may be said that advantage is very small or even does not have
There is any advantage.International application and development are made a general survey of, present status in China is compared, carries out Wavelike steel webplate variable cross-section PC box girder bridge
Key Techniques in Construction research, adds fuel to the flames to the application of this kind of bridge type.
Using single steel web, positioning method, single segment amount to 8 blocks of steel webs to the location and installation of traditional steel web one by one,
Full-bridge boom segments are more, and the method work efficiency is low, and the duration is at high cost.
The installation of closure section Wavelike steel webplate is the important working procedure of Wavelike steel webplate Continuous Box Girder Bridge, traditional Wavelike steel webplate
Bolt hole is circular hole, when reality is joined the two sections of a bridge, etc, is easy to appear hole location to not upper situation, accurately smoothly can install closure section steel web will
Directly affect closure section construction.
Summary of the invention
The technical problem to be solved in the present invention is that the web provided in Wavelike steel webplate continuous bridge cantilever pouring is advanced
The installation of steel web is advanceed to a upper segment and carried out by installation engineering method, strong shared with the concrete of a upper segment etc.
Flow beat shortens the segmental construction period, reduces time cost.
The present invention is realized by following proposal: the advanced installation of web in Wavelike steel webplate continuous bridge cantilever pouring
Engineering method comprising boom segments are constructed and closure section construction, using the synchronous top of hanging basket advancing in the boom segments work progress
Method is pushed away, uses the advanced installation method of steel web in the boom segments work progress, utilizes the strong period such as this section section concrete
Next segment steel web is installed.
The both ends of closure section steel web are divided into fixing end and free end in the closure section construction, and fixing end opens circular hole, from
It is first drilled by holding, then again along bridge, to circular hole is wealthy at long hole, long hole length is 80mm~100mm.
Boom segments construction the following steps are included:
Step 1: boom segments steel web is installed in advance: Hanging Basket is transported to behind scene on 0# block assembled, pre- using tower crane progress
Pressure, after upper segment concrete reaches C20 grade, carries out this segment web and installs in advance, using the advanced mounting technique of steel web,
The installation of steel web is advanceed to a upper segment to carry out, steel web is lifted by crane, is just connected；
Step 2: tensioning mud jacking in segment after concrete reaches design tensioning intensity in segment, carries out prestressed stretch-draw, first longitudinal
Again laterally, tensioning is completed to carry out hole path pressure grouting in 48 hours；
Step 3: hanging basket advancing, adjustment, after the completion of the concrete tensioning mud jacking of segment, the hydraulic synchronization pushing tow side that is controlled using PLC
Method carries out hanging basket advancing；
Step 4: boom segments steel web is accurately positioned installation, and steel web is accurately positioned respectively in terms of plane and elevation two
It is adjusted；
Step 5: steel web welding.
It is completed in segment concreting, the age of concrete meets 3 days or more, and after reaching the intensity of C20, in prestressing force
Before steel Shu Zhangla, start to lift next segment steel web；The installation of next segment steel web is advanceed to a upper segment to apply
It is carried out between duration, with the strong shared flow beat such as the concrete of a upper segment.
Numbered in lifting process and just connection according to steel web in steel web, feeds corresponding positions from cantilever section front end
It sets, the steel web tail portion of next segment is just connect with the cantilever end of this segment steel web, after steel web feeds corresponding position, is pressed
According to reserved hole location be aligned, vertically pop up position line in the position distance steel web end position 120mm, to steel web lengthwise position into
Row adjustment, then by upper and lower bolt fastening, then remaining bolt is successively tightened from the bottom up, until closely being pasted between two blocks of steel webs
It closes.
The steel web accurate positioning is adjusted in terms of plane and elevation two respectively, and specific adjustment mode is first high
Plane after journey.
Elevation method of adjustment: steel web front end first, upper perforated panel crosses screw-thread steel as steel web front end suspension centre,
Chain block one end is fixed on main truss cradle brace, and one end is fixed with screw-thread steel, before adjusting steel web by chain block
Absolute altitude is held, retains top bolt and is in tightening state, the connection bolt of remaining fastening is unclamped, so that steel plate washer and steel web
It is bonded but does not stress, instruct given beam face crest level to extrapolate the design altitude of every piece of steel web front end according to monitoring, pass through
The chain block being fixed on hanging basket main truss is adjusted the front end elevation of monolithic steel web, before level observes side web
Absolute altitude is held, until reaching design altitude, then fastens all connection bolts, web elevation adjustment in side is completed；Then in two pieces of side abdomens
It is fixed after tightening with construction auxiliary line connection between plate top, intermediate steel web front end is measured with steel tape and construction assists
The height difference of line, adjusts chain block, and up-regulation or decentralization steel web are completed so that steel web front end is overlapped with construction auxiliary line
The elevation of intermediate steel web is accurately positioned；Plane method of adjustment: being popped up side web axis using total station in bottom plate,
First piece of side web adjustment is first carried out, adjustment is fixed in steel web front end middle position with underframe longitudinal member with chain block, passes through line
Hammer method determines the deviation of steel web practical axis and setting-out axis, and is adjusted with chain block, hangs between two blocks of steel webs
Arm end is installed in parallel using the identical channel steel of design spacing, carries out the adjustment of one block of side web, remaining corrugated web is in plane position
It sets while being adjusted in place, then carry out interconnection in channel steel and steel web weld, the verticality of monolithic steel web is carried out
Accurate adjustment.
The closure section construction sequence is as follows: cast-in-place section concrete reaches G20 → lifting of steel web, first connection → tensioning pressure
Slurry → closure section hanger Forward, adjustment → steel web accurate positioning → welding of steel web, concreting.
Progress closure section steel bar template while steel web is accurately positioned is carried out after the closure section hanger Forward, adjustment to apply
Then work carries out the welding of closure section stiff skeleton, finally carry out the welding of steel web, concreting.
After cast-in-place section concrete reaches G20, tensioning is carried out when concrete reaches design tensioning intensity after concrete etc. is strong
Mud jacking.
The invention has the benefit that
1, the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention is advanced using steel web
The installation of steel web is advanceed to a upper segment and carried out by mounting technique, with the strong shared flowing water such as the concrete of a upper segment
Beat shortens the segmental construction period, reduces time cost, Wavelike steel webplate is lifted process, with concrete strength generation process
It carries out simultaneously, each segment can at least save the lifting time of segment steel web, greatly shorten the segmental construction period；
2, the construction speed of the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention is fast, pacifies
Total quality is controllable；
3, the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention is to waveform steel from now on
Web bridge cantilever segmental construction has biggish reference value；
4, the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention is by closure section waveform steel
Web typical round bolt hole innovative design not only solves side bolt when the installation of closure section Wavelike steel webplate at nose circle shape long hole
Hole alignment, other side bolt hole misalignment problem, and solve because of temperature, concrete shrinkage, creeping etc. influences bring construction
Difficult problem reduces Wavelike steel webplate bending deformation, improves construction benefit, reinforces quality control on construction；
5, the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention and previous large span connect
Continuous box Cantilever Construction compares, and due to using the advanced mounting technique of steel web, the construction period of standard segment is controlled 9
In it, the efficient rapid construction of segment cantilever construction is realized；
6, the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention duration shorten, only according to
The whole installation process of steel web is completed by tower crane, operation rate of machinery is low, and human input is also accordingly reduced,
7, the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring of the present invention utilizes sash weight, bracing wire etc.
Positioning method, simplifies the localization method of steel web, while also ensuring segment positioning accuracy.
Detailed description of the invention
Fig. 1 is cantilever pouring construction flow chart in the present invention.
Fig. 2 is closure section construction process flow chart in the present invention.
Fig. 3 is closure section steel web slotted hole structural schematic diagram in the present invention.
Specific embodiment
Below with reference to Fig. 1-3, the present invention is further described, but the scope of the present invention does not limit to the content.
For clarity, not describing whole features of practical embodiments, in the following description, it is not described in detail well known function
And structure, because they can make the present invention chaotic due to unnecessary details, it will be understood that opening in any practical embodiments
In hair, it is necessary to make a large amount of implementation details to realize the specific objective of developer, such as according to related system or related business
Limitation, changes into another embodiment by one embodiment, additionally, it should think that this development may be complicated and expend
Time, but to those skilled in the art it is only routine work.
The advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring comprising boom segments construction
And closure section construction, hanging basket advancing synchronous push method is used in boom segments work progress, is adopted in boom segments work progress
With the advanced installation method of steel web, next segment steel web is installed using the strong period such as this section section concrete.
The both ends of closure section steel web are divided into fixing end and free end in closure section construction, and fixing end opens circular hole, free end
It first drills, then again along bridge, to circular hole is wealthy at long hole, long hole length is 80mm~100mm.
Boom segments construction the following steps are included:
Step 1: boom segments steel web is installed in advance: Hanging Basket is transported to behind scene on 0# block assembled, pre- using tower crane progress
Pressure, after upper segment concrete reaches C20 grade, carries out this segment web and installs in advance, using the advanced mounting technique of steel web,
The installation of steel web is advanceed to a upper segment to carry out, steel web is lifted by crane, is just connected；
Step 2: tensioning mud jacking in segment after concrete reaches design tensioning intensity in segment, carries out prestressed stretch-draw, first longitudinal
Again laterally, tensioning is completed to carry out hole path pressure grouting in 48 hours；
Step 3: hanging basket advancing, adjustment, after the completion of the concrete tensioning mud jacking of segment, the hydraulic synchronization pushing tow side that is controlled using PLC
Method carries out hanging basket advancing；
Step 4: boom segments steel web is accurately positioned installation, and steel web is accurately positioned respectively in terms of plane and elevation two
It is adjusted；
Step 5: steel web welding.
It is completed in segment concreting, the age of concrete meets 3 days or more, and after reaching the intensity of C20, in prestressing force
Before steel Shu Zhangla, start to lift next segment steel web；The installation of next segment steel web is advanceed to a upper segment to apply
It is carried out between duration, with the strong shared flow beat such as the concrete of a upper segment.
Numbered in lifting process and just connection according to steel web in steel web, feeds corresponding positions from cantilever section front end
It sets, the steel web tail portion of next segment is just connect with the cantilever end of this segment steel web, just connection uses C grades of M20 bolts, single
The self weight of block steel web is mainly born by the power of the bolt transmitting after tightening, for the adjustment convenient for segment steel web middle line, absolute altitude, if
Meter bolt hole opening diameter is 45mm, and diameter 80mmQ345D antirust steel plate washer is used on the outside of bolt hole, using M20C grade bolt into
Row is fixed, and steel plate washer center and bolt hole center are concentric, after steel web feeds corresponding position, is aligned according to reserved hole location, two pieces
The lap of splice is 120mm between steel web, can vertically pop up position line in the position distance steel web end position 120mm, is utilized
Gap between stud and bolt hole is adjusted steel web lengthwise position, and longitudinal bias is no more than 10mm, then by upper and lower spiral shell
Bolt fastening, then remaining bolt is successively tightened from the bottom up, until being fitted closely between two blocks of steel webs.
The accurate positioning of steel web is adjusted in terms of plane and elevation two respectively, after specific adjustment mode is first elevation
Plane.
Elevation adjustment: steel web front end first, upper perforated panel crosses 32 screw-thread steel of Φ as steel web front end suspension centre,
The long 50cm of screw-thread steel, 5t chain block one end are fixed on main truss cradle brace, and one end is fixed with 32 screw-thread steel of Φ, by pulling
Cucurbit adjusts the front end absolute altitude of steel web, retains top bolt and is in tightening state, the connection bolt of remaining fastening is unclamped,
So that steel plate washer is bonded but does not stress with steel web, before instructing given beam face crest level to extrapolate every block of steel web according to monitoring
The design altitude at end is adjusted the front end elevation of monolithic steel web by the chain block being fixed on hanging basket main truss,
Technical staff observes side web front end absolute altitude using DSZ2 level, until reaching design altitude, then fastens all connection bolts,
Web elevation adjustment in side is completed；Then it between the web top of two pieces of sides (A, D two o'clock), is connected with construction auxiliary line, after tightening
It is fixed, the height difference (δ 1 and δ 2) of intermediate steel web front end and auxiliary line of constructing is measured with steel tape, adjusts chain block, up-regulation
Or decentralization steel web, so that steel web front end is overlapped with construction auxiliary line, the elevation for completing intermediate steel web is accurately positioned；It is flat
Face adjustment: being popped up side web axis using total station in bottom plate, first carries out first piece of side web adjustment, adjustment 3t hand
Cucurbit is drawn to fix in steel web front end middle position with underframe longitudinal member, technical staff determines the practical axis of steel web by plumb bob method
And the deviation of setting-out axis, and be adjusted with chain block, cantilever end is identical using design spacing between two blocks of steel webs
[14 channel steels are installed in parallel, need to only carry out the adjustment of one block of side web, remaining corrugated web is adjusted in place simultaneously in plan-position,
Then interconnection is carried out using the flower basket bolt of M20 in channel steel and steel web weld, to the verticality of monolithic steel web into
Row accurate adjustment.
Closure section construction sequence is as follows: cast-in-place section concrete reach G20 → steel web lifting, first connection → tensioning mud jacking →
The Forward of closure section hanger, adjustment → steel web accurate positioning → welding of steel web, concreting.
It carries out carrying out the construction of closure section steel bar template while steel web is accurately positioned after the Forward of closure section hanger, adjustment,
Then the welding of closure section stiff skeleton is carried out, the welding of steel web, concreting are finally carried out.
After cast-in-place section concrete reaches G20, tensioning is carried out when concrete reaches design tensioning intensity after concrete etc. is strong
Mud jacking.
Application example: closing overgrown with weeds across the Yu Xi river bridge of high speed interconnection engineering, span setting be 55m+93m+83m+55m=
286m, girder use three Room box girder with corrugated steel webs of double width list case, and concrete uses C50.
The river Yu Xi bridge continuous beam suspension segment is more, and the installation of Wavelike steel webplate cantilever is inclined by design longitudinal slope, processing
The influence of deformation during difference and concrete suspension casting etc., linear and precision controlling difficulty are big.The engineering is connection Wu Hujiang
The main thoroughfare of Bei Chanyejizhongqu and Jiangnan main city zone, for local important people's livelihood engineering, owner is tight to construction period.Waveform
The installation effectiveness of steel web is an important factor for restricting continuous beam segmental construction, how efficiently to complete the construction of cantilever segment, be
The technological difficulties of this engineering.
Using the advanced installation engineering method of steel web, successfully solves the key technology difficulty of construction.The engineering is in 2017
Year September smoothly completes full-bridge closure, and the indexs such as quality, safety, economy have reached target, obtain owner, management and
The consistent favorable comment of expert.
The river Yu Xi bridge will become Anhui Province's seat of honour, four innings of the first Wavelike steel webplate continuous box girders after building up, fill up me
The construction technology blank of three Room large span antinode plate continuous beam of single case is saved, is laid for the construction of later wave shape steel web continuous bridge
Solid foundation.
1 cantilever section steel web of table installs economic efficiency contrast table
2 closure section steel web of table installs economic efficiency contrast table
Duration of the invention shortens, and only relies on the whole installation process that tower crane completes steel web, operation rate of machinery is low, human input
It is corresponding to reduce, amount to 5,400,000 yuan of save the cost.
Although having done more detailed elaboration to technical solution of the present invention and having enumerated, it should be understood that for ability
For field technique personnel, modifications to the embodiments described above may be made or uses equivalent alternative solution, this is to those skilled in the art
It is it is clear that these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the present invention for member
Claimed range.
Claims (10)
1. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring, it is characterised in that: it includes outstanding
Arm segmental construction and closure section construction use hanging basket advancing synchronous push method, the cantilever section in boom segments work progress
The advanced installation method of steel web is used in section work progress, next segment steel abdomen is installed using the strong period such as this section section concrete
Plate.
2. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 1,
It is characterized by: the both ends of closure section steel web are divided into fixing end and free end in the closure section construction, fixing end opens circular hole,
Free end first drills, then again along bridge, to circular hole is wealthy at long hole, long hole length is 80mm~100mm.
3. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 1,
It is characterized by: boom segments construction the following steps are included:
Step 1: boom segments steel web is installed in advance: Hanging Basket is transported to behind scene on 0# block assembled, pre- using tower crane progress
Pressure, after upper segment concrete reaches C20 grade, carries out this segment web and installs in advance, using the advanced mounting technique of steel web,
The installation of steel web is advanceed to a upper segment to carry out, steel web is lifted by crane, is just connected；
Step 2: tensioning mud jacking in segment after concrete reaches design tensioning intensity in segment, carries out prestressed stretch-draw, first longitudinal
Again laterally, tensioning is completed to carry out hole path pressure grouting in 48 hours；
Step 3: hanging basket advancing, adjustment, after the completion of the concrete tensioning mud jacking of segment, the hydraulic synchronization pushing tow side that is controlled using PLC
Method carries out hanging basket advancing；
Step 4: boom segments steel web is accurately positioned installation, and steel web is accurately positioned respectively in terms of plane and elevation two
It is adjusted；
Step 5: steel web welding.
4. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 1,
It is characterized by: completing in segment concreting, the age of concrete meets 3 days or more, and after reaching the intensity of C20, pre-
Before stress steel Shu Zhangla, start to lift next segment steel web；The installation of next segment steel web is advanceed into a upper section
Section construction period carries out, with the strong shared flow beat such as the concrete of a upper segment.
5. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 1,
It is characterized by: numbered in lifting process and just connection according to steel web in steel web, from cantilever section front end, feeding is corresponding
The steel web tail portion of next segment is just connect by position with the cantilever end of this segment steel web, after steel web feeds corresponding position,
It is aligned according to reserved hole location, position line is vertically popped up in the position distance steel web end position 120mm, to steel web lengthwise position
It is adjusted, then by upper and lower bolt fastening, then successively tightens remaining bolt from the bottom up, until closely being pasted between two blocks of steel webs
It closes.
6. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 1,
It is characterized by: the steel web accurate positioning is adjusted in terms of plane and elevation two respectively, specific adjustment mode is
Plane after first elevation.
7. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 6,
It is characterized by: elevation method of adjustment: steel web front end first, upper perforated panel crosses screw-thread steel as steel web front end and hangs
Point, chain block one end are fixed on main truss cradle brace, and one end is fixed with screw-thread steel, adjust steel web by chain block
Front end absolute altitude retains top bolt and is in tightening state, the connection bolt of remaining fastening is unclamped, so that steel plate washer and steel abdomen
Plate is bonded but does not stress, and instructs given beam face crest level to extrapolate the design altitude of every piece of steel web front end according to monitoring, leads to
It crosses the chain block being fixed on hanging basket main truss to be adjusted the front end elevation of monolithic steel web, level observes side web
Front end absolute altitude until reaching design altitude, then fastens all connection bolts, and web elevation adjustment in side is completed；Then on two pieces of sides
It is fixed after tightening with construction auxiliary line connection between web top, intermediate steel web front end is measured with steel tape and construction is auxiliary
The height difference of index contour adjusts chain block, up-regulation or decentralization steel web, so that steel web front end is overlapped with construction auxiliary line, it is complete
It is accurately positioned at the elevation of intermediate steel web；Plane method of adjustment: utilize total station by side web axis bullet in bottom plate
Out, first piece of side web adjustment is first carried out, steel web front end middle position is fixed with underframe longitudinal member with chain block, passed through by adjustment
Plumb bob method determines the deviation of steel web practical axis and setting-out axis, and is adjusted with chain block, between two blocks of steel webs
Cantilever end is installed in parallel using the identical channel steel of design spacing, carries out the adjustment of one block of side web, remaining corrugated web is in plane
Position is adjusted in place simultaneously, then carries out interconnection in channel steel and steel web weld, to the verticality of monolithic steel web into
Row accurate adjustment.
8. the advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring according to claim 1,
It is characterized by: the closure section construction sequence is as follows: cast-in-place section concrete reaches G20 → lifting of steel web, just connection → and opens
Tension and compression slurry → closure section hanger Forward, adjustment → steel web accurate positioning → welding of steel web, concreting.
9. the advanced installation engineering method of web in the Wavelike steel webplate continuous bridge cantilever pouring stated according to claim 8,
It is characterized in that: carrying out carrying out closure section steel bar template while steel web is accurately positioned after the closure section hanger Forward, adjustment
Then construction carries out the welding of closure section stiff skeleton, finally carry out the welding of steel web, concreting.
10. the advanced installation engineering method of web in the Wavelike steel webplate continuous bridge cantilever pouring stated according to claim 8,
It is characterized in that: after cast-in-place section concrete reaches G20, carrying out tensioning when concrete reaches design tensioning intensity after concrete etc. is strong
Mud jacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117901.3A CN109098100B (en) | 2018-09-26 | 2018-09-26 | Web advanced installation construction method in cantilever casting of corrugated steel web continuous beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117901.3A CN109098100B (en) | 2018-09-26 | 2018-09-26 | Web advanced installation construction method in cantilever casting of corrugated steel web continuous beam bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109098100A true CN109098100A (en) | 2018-12-28 |
| CN109098100B CN109098100B (en) | 2021-03-05 |
Family
ID=64867543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117901.3A Active CN109098100B (en) | 2018-09-26 | 2018-09-26 | Web advanced installation construction method in cantilever casting of corrugated steel web continuous beam bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098100B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797659A (en) * | 2019-03-21 | 2019-05-24 | 东南大学 | A kind of mobile asynchronous construction method of bracket of Wavelike steel webplate continuous bridge |
| CN111455874A (en) * | 2020-04-26 | 2020-07-28 | 中国建筑第七工程局有限公司 | Construction method for overlong side span straight line segment of high pier of corrugated steel web PC bridge |
| CN114525740A (en) * | 2022-03-07 | 2022-05-24 | 中交三航局第三工程有限公司 | Safety early warning method for steel box girder pushing process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080000716A (en) * | 2006-06-28 | 2008-01-03 | 신대철 | Structure which combined corrugated steel plate web and concrete with stud |
| CN203668810U (en) * | 2013-12-30 | 2014-06-25 | 郑州大学 | PC combined box girder of corrugated steel webs |
| CN204000564U (en) * | 2014-07-31 | 2014-12-10 | 中国路桥工程有限责任公司 | Greatly across thin-walled prestressed concrete box girder |
| CN106758856A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of the pretensioned prestressing corrugated steel web plate composite box girder of precast block |
| CN106758857A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of precast block formula secondary prestress Wavelike steel webplate combination beam |
-
2018
- 2018-09-26 CN CN201811117901.3A patent/CN109098100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080000716A (en) * | 2006-06-28 | 2008-01-03 | 신대철 | Structure which combined corrugated steel plate web and concrete with stud |
| CN203668810U (en) * | 2013-12-30 | 2014-06-25 | 郑州大学 | PC combined box girder of corrugated steel webs |
| CN204000564U (en) * | 2014-07-31 | 2014-12-10 | 中国路桥工程有限责任公司 | Greatly across thin-walled prestressed concrete box girder |
| CN106758856A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of the pretensioned prestressing corrugated steel web plate composite box girder of precast block |
| CN106758857A (en) * | 2017-03-09 | 2017-05-31 | 河南省交通规划设计研究院股份有限公司 | The construction method of precast block formula secondary prestress Wavelike steel webplate combination beam |
Non-Patent Citations (2)
| Title |
|---|
| 百度: "波形钢腹板高效安装技术中铁四局市政公司", 《科技前沿交流》 * |
| 邓超: "《宜万铁路工程总结》", 31 December 2013, 西南交通大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797659A (en) * | 2019-03-21 | 2019-05-24 | 东南大学 | A kind of mobile asynchronous construction method of bracket of Wavelike steel webplate continuous bridge |
| CN111455874A (en) * | 2020-04-26 | 2020-07-28 | 中国建筑第七工程局有限公司 | Construction method for overlong side span straight line segment of high pier of corrugated steel web PC bridge |
| CN111455874B (en) * | 2020-04-26 | 2022-05-24 | 中国建筑第七工程局有限公司 | Construction method for high-pier overlong side span straight-line segment of corrugated steel web PC bridge |
| CN114525740A (en) * | 2022-03-07 | 2022-05-24 | 中交三航局第三工程有限公司 | Safety early warning method for steel box girder pushing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109098100B (en) | 2021-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108179700B (en) | Prefabricating and mounting method for ultrahigh-performance concrete through-type plate arch bridge segment | |
| CN108914785B (en) | Hanging basket cantilever pouring construction method of multi-chamber corrugated steel web continuous beam bridge | |
| CN103614970B (en) | Steel truss girder assembling construction longitudinal pull and lateral pushing sliding system | |
| CN103614969B (en) | Steel truss girder assembling, erecting and construction process | |
| CN109098100A (en) | The advanced installation engineering method of web in Wavelike steel webplate continuous bridge cantilever pouring | |
| WO2021238024A1 (en) | Asymmetric installation construction method for straddle-type light rail special steel box girder extradosed bridge | |
| CN108060636B (en) | The construction method of overall assembled composite beam bridge | |
| CN105970836A (en) | Method for erecting large-span lower chord variable truss high continuous steel trussed beam cantilever | |
| CN109853394A (en) | Arch bridge cable hoisting tower button integrated construction engineering method | |
| CN108004925B (en) | Prestress reinforced concrete circular arch tower construction method | |
| CN108252220A (en) | A kind of construction method of super-large span stiff skeleton | |
| 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 | |
| CN110093863A (en) | A kind of double face integration Bridge Erector being not provided with front leg strut | |
| CN110468734A (en) | Steel lagging jack pushing tow system and steel lagging jack push construction method | |
| CN212426753U (en) | Tooth block pull rod combined cable tower anchoring structure of cable-stayed bridge | |
| CN207047613U (en) | A kind of railway roadbed changeover portion support meanss and railway roadbed changeover portion support system | |
| CN107447598A (en) | A kind of building method of railway roadbed changeover portion support meanss and railway roadbed changeover portion support system | |
| CN216108007U (en) | Concrete beam type bridge and cast-in-situ hidden cover beam thereof | |
| CN211737157U (en) | Tunnel primary support structure of steel arch frame | |
| CN113944114A (en) | Dismantling construction method for large-span prestressed concrete cable-stayed bridge | |
| CN211472116U (en) | Railway assembled steel diagonal brace combination PC roof beam | |
| CN209722908U (en) | Steel structure body | |
| CN207419388U (en) | A kind of stiff skeleton structure of arched aqueduct box arch ring closure section | |
| CN111254827A (en) | Stay cable and bridge tower anchoring structure and manufacturing method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |