CN106894345A - Continuous beam end bay closing device and method - Google Patents
Continuous beam end bay closing device and method Download PDFInfo
- Publication number
- CN106894345A CN106894345A CN201710250543.2A CN201710250543A CN106894345A CN 106894345 A CN106894345 A CN 106894345A CN 201710250543 A CN201710250543 A CN 201710250543A CN 106894345 A CN106894345 A CN 106894345A
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- CN
- China
- Prior art keywords
- end bay
- closing device
- bed die
- rear cross
- support bracket
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
In continuous beam end bay closing device of the invention and continuous beam end bay folding method, the support bracket is partially received in the reserving hole channel of transition pier capping beam, the rear cross beam is fixed on bottom edge into beam section, the bed die longeron is located at the front beam and rear cross beam top, the template is located at bed die longeron top, set this invention simplifies support, it is not take up extra place, the shaped steel for being used is also reusable, installation, convenient disassembly, construction cost is cheap, while accelerating bridge integral construction progress, improves economic benefit.
Description
Technical field
The present invention relates to bridge field, particularly continuous beam end bay closing device and method.
Background technology
In recent years, continuing to develop with transport development cause, the design and construction technique of China's Large Span Bridges also with
Develop rapidly.In Large Span Bridges engineering construction, cantilever method is constructed as a kind of important construction technology, is widely used in
The techniques have easy construction in science of bridge building, while the features such as opening up multiple working faces, accelerating construction progress, as bridge
The important developing direction of construction.
End bay closes up as one of critical process in Construction of continuous beam, directly affects full bridge structure safety and quality.Mesh
Before, the construction of end bay closure segment is typically with the method for setting up full hall scaffold plus steel pipe column in transition pier, by Hanging Basket bed die
One end is placed on steel pipe column, formed an operation platform, scaffold then meet steel pipe column erection construction and later stage personnel it is upper and lower
Passage, but the method is higher to foundation bearing capacity, and required place is larger, if transition pier is higher, steel pipe column will increase therewith,
There is larger potential safety hazard in work progress, and relatively costly, it is impossible to be used in the construction of bridge completely.
What traditional in the prior art construction method was used set up full hall scaffold in transition pier sets up and sets steel pipe column
Etc. external support method needed for place it is larger, complex structure higher to ground requirement for bearing capacity, construction period is more long, construction
Cost is excessive, and when setting up and using such support, there is larger potential safety hazard, it is impossible to meet wanting for bridge contact construction
Ask.
The content of the invention
The present invention close up problem present in technology for continuous beam end bay, there is provided a kind of continuous beam end bay closing device and
A kind of continuous beam end bay folding method has that reasonable in design, mechanical property is good, step is simple, security good and construction cost is low
Advantage.
It is that, up to above-mentioned advantage, the present invention provides a kind of continuous beam end bay closing device, the device includes support bracket, preceding horizontal stroke
Beam, rear cross beam, bed die longeron, template；The support bracket is partially received in the reserving hole channel of transition pier capping beam, described rear horizontal
Beam is fixed on bottom edge into beam section, and the bed die longeron is located at the front beam and rear cross beam top, the mould
Plate is located at bed die longeron top, and the quantity of the support bracket is multiple.
It is the front beam, the rear cross beam, described in one embodiment of continuous beam end bay closing device of the invention
Support bracket and bed die longeron are I-steel.
In one embodiment of continuous beam end bay closing device of the invention, the rectangular cross-section of the reserving hole channel.
In one embodiment of continuous beam end bay closing device of the invention, the reserving hole channel is blind hole.
In one embodiment of continuous beam end bay closing device of the invention, the hole wall and bottom hole of the reserving hole channel enclose
It is wound with steel plate layer.
In one embodiment of continuous beam end bay closing device of the invention, the steel plate layer outer surface is fixed with " well "
Font reinforcing bar, axis of " well " the font reinforcing bar perpendicular to the reserving hole channel.
It is described into beam section by construction cradle in one embodiment of continuous beam end bay closing device of the invention
Into.
In one embodiment of continuous beam end bay closing device of the invention, the reinforcing bar of the steel plate layer and the bent cap
It is connected.
In one embodiment of continuous beam end bay closing device of the invention, the quantity of the bed die longeron is multiple.
The present invention also provides a kind of continuous beam end bay folding method, and methods described includes：A, poured near conjunction using Hanging Basket
Hold together the beam section of section；B, bracket portion will be supported to be arranged in the reserving hole channel of transition pier capping beam；The quantity of the support bracket is many
It is individual；C, hanging basket advancing ride on support bracket front beam, rear cross beam are connected with the bottom edge into beam section, preceding
Bed die longeron is installed on crossbeam, rear cross beam, end bay Cast-in-Situ Segment template is installed on bed die longeron, pour end bay Cast-in-Situ Segment concrete；D、
End bay Cast-in-Situ Segment template is removed, closure segment template is installed on bed die longeron, pour closure segment concrete；F, remove closure segment template,
Support bracket, front beam, rear cross beam and bed die longeron.
In continuous beam end bay closing device of the invention and continuous beam end bay folding method, the support bracket part holds
It is contained in the reserving hole channel of transition pier capping beam, the rear cross beam is fixed on bottom edge into beam section, the bed die longeron position
In the front beam and rear cross beam top, the template is located at bed die longeron top, is set up this invention simplifies branch
Put, be not take up extra place, the shaped steel for being used is also reusable, installation, convenient disassembly, construction cost are cheap, while plus
Fast bridge integral construction progress, improves economic benefit.
Brief description of the drawings
Fig. 1 show the structural representation of the vertical section of the continuous beam end bay closing device of first embodiment of the invention.
Fig. 2 show the structural representation in the cross section of continuous beam end bay closing device in Fig. 1.
Fig. 3 show the structural representation of the steel plate layer of the reserving hole channel of bent cap in Fig. 1.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to proposing specific embodiment, structure, feature and its effect according to the present invention, describe in detail as after.
Fig. 1 show the structural representation of the vertical section of the continuous beam end bay closing device of first embodiment of the invention.Fig. 2
It show the structural representation in the cross section of continuous beam end bay closing device in Fig. 1.Fig. 1, Fig. 2 are referred to, is connected in the present embodiment
Continuous beam end bay closing device 10 includes support bracket 12a, front beam 13a, anchor pole 12b, rear cross beam 13b, bed die longeron 15, template
17；Support bracket 12a is partially received in the reserving hole channel 110 of transition pier capping beam 100, and rear cross beam 13b is fixed by anchor pole 12b
, into the bottom edge of beam section 21, bed die longeron 15 is located at front beam 13a and rear cross beam 13b tops, and template 17 is located at bed die
The top of longeron 15, the quantity of support bracket 12a is multiple.The quantity of bed die longeron 15 is multiple.
Support bracket 12a is shaped steel, and 9 are set altogether, has reserving hole channel 110 at bearing pad stone 111 to set at the two ends of bent cap 100
Put spacing smaller, it is larger without the spacing of reserving hole channel 110 at bearing pad stone 111 at the middle part of bent cap 100；Support bracket 12a can select
I40A I-steel, each shaped steel stretches into bent cap 1m, exposes 0.6m, and exposed parts are used to support front beam 13a.Front beam 13a, after
Crossbeam 13b, bed die longeron 15 can also be I-steel.
Fig. 3 show the structural representation of the steel plate layer of the reserving hole channel of bent cap in Fig. 1.The section of reserving hole channel 110 is
Rectangle, reserving hole channel 110 is blind hole.The hole wall and bottom hole of reserving hole channel 110 are surrounded with steel plate layer 111.The outer surface of steel plate layer 111
It is fixed with " well " font axis of reinforcing bar 111a, " well " font reinforcing bar 111a perpendicular to reserving hole channel 110.
Steel plate layer 111 uses the hole wall and bottom hole of 2mm steel sheet and plates, reserving hole channel 110 to be formed with by steel sheet and plate welding
The steel box of bottom uncovered, " well " font reinforcing bar 111a is selected from by diameter 12mm Ribbed Bars, will before the concrete of bent cap 100 is poured
" well " font reinforcing bar 111a is welded and fixed with bent cap cage bar, and vertically and horizontally position and the level of steel box should be accurately measured before fixing
Absolute altitude, must be allowed on the same plane；Because the steel box length for stretching into bent cap 100 has 1m, so should set no less than 3 layers " wells "
Font Ribbed Bar 111a, one of a setting before, during and after steel box respectively, if when the distribution of bent cap cage bar can not meet this condition,
Can suitably be increased.
The present invention also provides a kind of continuous beam end bay folding method, and methods described includes：
A, the beam section 21 that close closure segment 22 is poured using Hanging Basket, after the beam section 21 of complete main T structures to be onstructed, are removed on Hanging Basket
Portion's truss；
B, bracket 12a portions will be supported to be arranged in the reserving hole channel 110 of transition pier capping beam 100；Treat that the intensity of beam section 21 is reached
After design strength, the front beam 13a reaches of Hanging Basket are positioned on support bracket 12a, after being put in place, front beam should be checked
13a whether level, if with every support bracket 12a contact closely, if not having, steel cushion block need to be increased.By rear cross beam 13b and
Bottom edge into beam section 21 is connected, and before construction end bay Cast-in-Situ Segment 23, need to complete the frame of transition pier opposite side Precast T-Beam
If, and complete the construction of wet seam and diaphragm plate.Rear cross beam is anchored with 15# beam sections；Remove Hanging Basket top trussing etc. only pre-
Keep on file mould 172 and side form 171, and according to calculating and setting counterweight；
Bed die longeron 15 is installed on front beam 13a, rear cross beam 13b, end bay Cast-in-Situ Segment 23 is installed on bed die longeron 15
Template, the template of adjustment end bay Cast-in-Situ Segment 23, assembling reinforcement and prestressing tendon etc..Main T structures two ends beam section 21 sets counterweight, such as respectively matches somebody with somebody
Weight 100.2t (this load is adjusted according to design checking counterweight, is paid attention to during deformation monitoring conceptual design), pours into a mould end bay
The concrete of Cast-in-Situ Segment 23, pour concrete weight 263.5t is amounted to according to design；Simultaneously in main T structures two during the concrete of cast end bay Cast-in-Situ Segment 23
End carriage section 21 progressively unloads counterweight near the termination of end bay Cast-in-Situ Segment 23, amounts to discharging quantity 53.18t.
C, the template of dismounting end bay Cast-in-Situ Segment 23, install the template of closure segment 22 on bed die longeron 15, and end bay closure segment 22 stands
Mould；The welding stiff skeleton of closure segment 22；Steel beam is closed up in tensioning temporarily；Pour the concrete of closure segment 22；The gradually main T of removal in casting process
Structure two ends beam section 21 is close to the termination residue counterweight 47.02t of end bay Cast-in-Situ Segment 23 to control beam-ends vertical deformation stabilization；Tensioning end bay
Base plate beam, anchoring temporarily beam residue load and mud jacking, complete the construction of end bay closure segment.
D, dismounting closure segment template, support bracket, front beam, rear cross beam and bed die longeron.
In continuous beam end bay closing device of the invention and continuous beam end bay folding method, the support bracket part holds
It is contained in the reserving hole channel of transition pier capping beam, the rear cross beam is fixed on bottom edge into beam section, the bed die longeron position
In the front beam and rear cross beam top, the template is located at bed die longeron top, is set up this invention simplifies branch
Put, be not take up extra place, the shaped steel for being used is also reusable, installation, convenient disassembly, construction cost are cheap, while plus
Fast bridge integral construction progress, improves economic benefit.
More than, only it is presently preferred embodiments of the present invention, any formal limitation is not made to the present invention, although this
Invention is disclosed above with preferred embodiment, but is not limited to the present invention, any those skilled in the art,
Do not depart from the range of technical solution of the present invention, be equal to when making a little change or being modified to using the technology contents of the disclosure above
The Equivalent embodiments of change, as long as being without departing from technical solution of the present invention content, according to technical spirit of the invention to real above
Any simple modification, equivalent variations and modification that example is made are applied, is still fallen within the range of technical solution of the present invention.
Claims (10)
1. a kind of continuous beam end bay closing device, it is characterised in that：The device includes support bracket, front beam, rear cross beam, bed die
Longeron, template；The support bracket is partially received in the reserving hole channel of transition pier capping beam, and the rear cross beam is fixed on Cheng Liang
The bottom edge of section, the bed die longeron is located at the front beam and rear cross beam top, and the template is located at the bed die
Longeron top, the quantity of the support bracket is multiple.
2. continuous beam end bay closing device according to claim 1, it is characterised in that：The front beam, the rear cross beam,
The support bracket and bed die longeron are I-steel.
3. continuous beam end bay closing device according to claim 1, it is characterised in that：The section of the reserving hole channel is square
Shape.
4. continuous beam end bay closing device according to claim 3, it is characterised in that：The reserving hole channel is blind hole.
5. continuous beam end bay closing device according to claim 4, it is characterised in that：The hole wall of the reserving hole channel and hole
Bottom is surrounded with steel plate layer.
6. continuous beam end bay closing device according to claim 5, it is characterised in that：The steel plate layer outer surface is fixed with
" well " font reinforcing bar, axis of " well " the font reinforcing bar perpendicular to the reserving hole channel.
7. continuous beam end bay closing device according to claim 6, it is characterised in that：It is described to be applied by Hanging Basket method into beam section
Work is formed.
8. continuous beam end bay closing device according to claim 7, it is characterised in that：The steel plate layer and the bent cap
Bar connecting is fixed.
9. the continuous beam end bay closing device according to any one in claim 1-8, it is characterised in that：The bed die is indulged
The quantity of beam is multiple.
10. a kind of continuous beam end bay folding method, it is characterised in that：Methods described includes：
A, pour the beam section near closure segment using Hanging Basket；
B, bracket portion will be supported to be arranged in the reserving hole channel of transition pier capping beam；The quantity of the support bracket is multiple；
C, hanging basket advancing ride on support bracket front beam, and rear cross beam is connected with the bottom edge into beam section,
Bed die longeron is installed on front beam, rear cross beam, end bay Cast-in-Situ Segment template is installed on bed die longeron, pour end bay Cast-in-Situ Segment concrete；
D, dismounting end bay Cast-in-Situ Segment template, install closure segment template on bed die longeron, pour closure segment concrete；
F, dismounting closure segment template, support bracket, front beam, rear cross beam and bed die longeron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250543.2A CN106894345A (en) | 2017-04-17 | 2017-04-17 | Continuous beam end bay closing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250543.2A CN106894345A (en) | 2017-04-17 | 2017-04-17 | Continuous beam end bay closing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106894345A true CN106894345A (en) | 2017-06-27 |
Family
ID=59196173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710250543.2A Pending CN106894345A (en) | 2017-04-17 | 2017-04-17 | Continuous beam end bay closing device and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106894345A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944170A (en) * | 2019-05-06 | 2019-06-28 | 重庆建工市政交通工程有限责任公司 | Continuous beam with high-pier end bay Cast-in-Situ Segment and closure section integrated construction system and construction method |
| CN110409314A (en) * | 2019-08-15 | 2019-11-05 | 中国五冶集团有限公司 | Continuous rigid frame bridge closure section unidirectional limitation locking device and method automatically |
| CN112049463A (en) * | 2020-08-19 | 2020-12-08 | 中建八局第二建设有限公司 | Atrium beam support construction method and atrium beam support construction system |
| CN113494054A (en) * | 2021-07-26 | 2021-10-12 | 中国建筑土木建设有限公司 | Template system of cantilever pouring construction closure section and construction method thereof |
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| CN103556578A (en) * | 2013-10-14 | 2014-02-05 | 中铁十九局集团有限公司 | Straight-line section and side span closure section casting mold system for continuous beam and erection method for casting mold system |
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| CN203904851U (en) * | 2014-04-21 | 2014-10-29 | 中铁三局集团有限公司 | Continuous beam side span straight section hanger support system |
| CN106284080A (en) * | 2016-08-11 | 2017-01-04 | 中铁十二局集团第二工程有限公司 | Continuous rigid frame aqueduct closure segment construction method |
| CN206667071U (en) * | 2017-04-17 | 2017-11-24 | 五冶集团上海有限公司 | Continuous beam end bay closing device |
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2017
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| JPH07216828A (en) * | 1994-02-07 | 1995-08-15 | Sumitomo Constr Co Ltd | Erection method of bridge girder in concrete bridge |
| CN201128881Y (en) * | 2007-11-15 | 2008-10-08 | 中交第一公路工程局有限公司 | Preformed supporting structure in bent cap construction |
| CN101586328A (en) * | 2009-06-12 | 2009-11-25 | 中国第一冶金建设有限责任公司 | Anchor ear angle-table bracket building method for bridge sidespan closure segment construction |
| CN101761034A (en) * | 2010-03-25 | 2010-06-30 | 中国建筑第六工程局有限公司 | Construction method of side block straight-line segment of cantilever-concreting continuous beam |
| CN103485283A (en) * | 2013-09-11 | 2014-01-01 | 中交第一公路工程局有限公司 | Hanging bracket supporting system of side-span cast-in-place section and implementation method thereof |
| CN103556578A (en) * | 2013-10-14 | 2014-02-05 | 中铁十九局集团有限公司 | Straight-line section and side span closure section casting mold system for continuous beam and erection method for casting mold system |
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| CN203904851U (en) * | 2014-04-21 | 2014-10-29 | 中铁三局集团有限公司 | Continuous beam side span straight section hanger support system |
| CN106284080A (en) * | 2016-08-11 | 2017-01-04 | 中铁十二局集团第二工程有限公司 | Continuous rigid frame aqueduct closure segment construction method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944170A (en) * | 2019-05-06 | 2019-06-28 | 重庆建工市政交通工程有限责任公司 | Continuous beam with high-pier end bay Cast-in-Situ Segment and closure section integrated construction system and construction method |
| CN110409314A (en) * | 2019-08-15 | 2019-11-05 | 中国五冶集团有限公司 | Continuous rigid frame bridge closure section unidirectional limitation locking device and method automatically |
| CN110409314B (en) * | 2019-08-15 | 2023-10-10 | 中国五冶集团有限公司 | Automatic unidirectional limiting and locking device and method for closure section of continuous rigid frame bridge |
| CN112049463A (en) * | 2020-08-19 | 2020-12-08 | 中建八局第二建设有限公司 | Atrium beam support construction method and atrium beam support construction system |
| CN113494054A (en) * | 2021-07-26 | 2021-10-12 | 中国建筑土木建设有限公司 | Template system of cantilever pouring construction closure section and construction method thereof |
| CN113494054B (en) * | 2021-07-26 | 2023-12-26 | 中国建筑土木建设有限公司 | Template system of cantilever pouring construction folding section and construction method thereof |
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| PB01 | Publication | ||
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Application publication date: 20170627 |