CN102995553A - Arch rib of reinforced concrete arch bridge and erection support and manufacture method of arch rib - Google Patents
Arch rib of reinforced concrete arch bridge and erection support and manufacture method of arch rib Download PDFInfo
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- CN102995553A CN102995553A CN2012104869799A CN201210486979A CN102995553A CN 102995553 A CN102995553 A CN 102995553A CN 2012104869799 A CN2012104869799 A CN 2012104869799A CN 201210486979 A CN201210486979 A CN 201210486979A CN 102995553 A CN102995553 A CN 102995553A
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Abstract
The invention discloses an arch rib of a reinforced concrete arch rib, an erection support and a manufacture method of the arch rib. The manufacture method can be applied to manufacture and erection of the arch rib of conventional reinforced concrete bridge and the arch rib of a reinforced concrete tied-arch bridge, and can improve the stability of an arch rib support during erecting the arch rib and after erecting and positioning the arch rib, as well as ensuring the safety in erecting of the arch rib. The arch rib disclosed by the invention comprises an arch rib body; a thrust switching support saddle is arranged in a position, corresponding to the arch rib support, of the arch rib body. The erection support is provided with an I-shaped support body, and the upper end surface of the erection support is a horizontal plane; and the support body is welded at the top part of the arch rib support and is in horizontal contact with a bottom plate of the thrust switching support saddle. The manufacture method of the arch rib comprises the following steps in sequence: pouring concrete in positions, corresponding to the arch rib support, at two ends of the arch rib body in order to fix embedded steel bars; marking a vertical line which is only formed after the arch rib main body is erected on the arch rib body before the erection is carried out; and welding the bottom plate with the lower ends of the embedded steel bars. By adopting the manufacture method, the safety in construction can be improved, and the risk in construction can be avoided.
Description
Technical field
The present invention relates to arch rib and the manufacture method of reinforced concrete arch bridge, particularly a kind of reinforced concrete arch bridge arch rib and erection support and preparation method thereof, can be used for making and the installation of ordinary reinforced concrete arch rib and steel concrete bowstring arch bridge arch rib, improve in the arch rib installation process and the stability of arch rib support behind the installation in position, guarantee the safety that arch rib is installed.
Background technology
Ordinary reinforced concrete arch bridge and steel concrete bowstring arch bridge all belong to reinforced concrete arch bridge.At present, in the installation process of reinforced concrete arch bridge arch rib and steel concrete bowstring arch bridge arch rib, the abutting joint of arch rib and arch rib support is a construction technology difficult problem, does not have special processing method, generally arch rib is not processed directly to place on the arch rib support.This form of construction work, because arc rib alignment is arch, the interaction force of arch rib and arch rib support is along the normal direction of arch rib camber line, this has just caused the interaction force that has horizontal direction between arch rib and the arch rib support.Its contact surface with the arch rib support was little and there is the thrust of along continuous straight runs in the arch rib support when arch rib was installed, and was unfavorable for the stability of arch rib support, had potential safety hazard and great construction risk.Because exist very high risk, it is stable to guarantee that arch rib is installed, just higher to the steadiness requirement of arch rib support.When the arch rib Rig up error, there is the danger of collapsing in the arch rib support, and this problem affects construction speed and the construction quality of reinforced concrete arch bridge always.Reinforced concrete arch bridge need to improve the structure of arch rib, reduces the installation risk of ordinary reinforced concrete arch bridge and steel concrete bowstring arch bridge arch rib.
Summary of the invention
The purpose of this invention is to provide a kind of reinforced concrete arch bridge arch rib and erection support and preparation method thereof.Overcome the defective of prior art, solve traditional arch rib the bad problem of stability is installed, improve working security and workmanship.
The present invention is achieved in that
A kind of reinforced concrete arch bridge arch rib comprises the arch rib body, is provided with thrust conversion bearing in arch rib body and the position of the corresponding installation of arch rib support.
A seat body of erection support is worker's body, and its upper surface is horizontal plane, and the top that a seat body is welded on the arch rib support contacts with the floor level of thrust conversion bearing.
The preparation method of arch rib is the installation site of the corresponding arch rib support at arch rib body two ends, and concreting is embedded bar fixedly; By measuring the vertical curve after unwrapping wire is installed the arch rib body, before installation, be indicated on the arch rib body, according to the angle vertical with this vertical curve horizontal line of striking in the bottom of embedded bar, the cutting embedded bar welds the lower end of base plate and embedded bar again.
Remarkable result of the present invention is as follows.Use the present invention and significantly improved the stability that the reinforced concrete arch bridge arch rib is installed.By at the fixing embedded bar of arch rib body, and then weld base plate on the basis of embedded bar, when making in the future the arch rib installation in position, the installation site at two ends is horizontal level, and the contact surface of arch rib and arch rib support is converted into horizontal plane.Like this, arch rib to the active force of arch rib support perpendicular to horizontal contact surface, active force straight down, do not exist the thrust on the arch rib support level direction, eliminate the interaction force on the horizontal direction between arch rib and the arch rib support, guaranteed the stability that arch rib is installed, greatly improved the safety of construction, avoid corresponding construction risk, improved simultaneously the construction quality of engineering.Because the installation of arch rib is convenient in the present invention, can also the reduction of erection time, improve project benefit.
Description of drawings
Fig. 1 is the structural representation of arch rib of the present invention and erection support.
Fig. 2 is for using the stressed effect figure after arch rib of the present invention is installed.
The specific embodiment
Below in conjunction with accompanying drawing in detail the present invention is described in detail, referring to Fig. 1.A kind of reinforced concrete arch bridge arch rib comprises arch rib body 3, is provided with thrust conversion bearing in arch rib body 3 and the position of arch rib support 5 corresponding installations.Thrust conversion bearing comprises embedded bar 1 and base plate 2, and the lower surface of base plate 2 is horizontal planes, and embedded bar 1 is fixed in the arch rib body 3, base plate 2 is welded on the lower end of embedded bar 1.Base plate 2 is circular, square or polygon, and its thickness setting is between 10mm-100mm; The angle of base plate 2 and arch rib body 1 is exactly arch body 1
Folder The angle.The diameter of embedded bar 1 is set between the 20mm-60mm.According to the sum of its diameter design embedded bar 1, diameter is larger, and the radical of its embedded bar 1 is fewer.
Be used for a kind of erection support of reinforced concrete arch bridge arch rib, its seat body 4 is worker's bodies, and its upper surface is horizontal plane, and the top that a seat body 4 is welded on arch rib support 5 contacts with base plate 2 levels of thrust conversion bearing.The outer shape of seat body 4 top plate bodys can be identical or different with base plate 2, and its diameter or area can be identical with base plate 2 or greater than base plate 2.
A kind of preparation method of reinforced concrete arch bridge arch rib is: the installation site of corresponding arch rib support 5 at arch rib body 3 two ends, and concreting is embedded bar 1 fixedly; By measuring the vertical curve after unwrapping wire is installed arch rib body 3, before installation, be indicated on the arch rib body 3, according to the angle vertical with this vertical curve horizontal line of striking in the bottom of embedded bar 1, cutting embedded bar 1 is again with the lower end welding of base plate 2 with embedded bar 1.The bearing capacity of base plate 2 should be greater than 4-6 times of arch rib body 3 weight.
Embedded bar 1 bulk strength should satisfy formula: SNf σ c〉kF;
In the formula:
S-embedded bar 1 single cross-sectional area;
Total radical of N-embedded bar 1;
F σ c-embedded bar 1 single standard shear strength value;
K-thrust conversion bearing safety factor, k 〉=5;
F-embedded bar 1 contacts the mid-point computation horizontal thrust with arch rib body 3.
Embedded bar 1 compressive strength should satisfy formula: SNf σ bc〉kG;
In the formula:
S-embedded bar 1 single cross-sectional area;
Total radical of N-embedded bar 1;
F σ bc-embedded bar 1 single compression strength value;
K-thrust conversion bearing safety factor, k 〉=5;
The gravity of G-arch rib body 3.
Referring to Fig. 2, when the arch rib of reinforced concrete arch bridge is installed, as long as the erection support at the base plate 2 of the thrust conversion bearing at arch rib body 3 two ends and arch rib support 5 tops propped up a seat body 4 placement of aliging.The active force straight up that P representative 4 pairs of base plates of seat body 2 produce among Fig. 2; G represents the gravity of arch rib body 3.When base plate 2 with after seat body 4 aligns, the thrust that 3 pairs of arch rib supports 5 of arch rib body produce has just become active force straight down, has guaranteed the stability of arch rib, has reduced construction risk.
Claims (10)
1. a reinforced concrete arch bridge arch rib comprises arch rib body (3), it is characterized in that, is provided with thrust conversion bearing in arch rib body (3) and the position of the corresponding installation of arch rib support (5).
2. a kind of reinforced concrete arch bridge arch rib according to claim 1, it is characterized in that, described thrust conversion bearing comprises embedded bar (1) and base plate (2), the lower surface of base plate (2) is horizontal plane, embedded bar (1) is fixed in the arch rib body (3), base plate (2) is welded on the lower end of embedded bar (1).
3. a kind of reinforced concrete arch bridge arch rib according to claim 2 is characterized in that, described base plate (2) is circular, square or polygon, and its thickness setting is between 10mm-100mm; Base plate (2) is exactly the angle of arch rib body (3) and horizontal plane with the angle of arch rib body (3).
4. according to claim 2 or 3 described a kind of reinforced concrete arch bridge arch ribs, it is characterized in that the diameter of described embedded bar (1) is set between the 20mm-60mm.
5. the erection support that is used for claim 1 a reinforced concrete arch bridge arch rib, it is characterized in that, seat body (4) is worker's body, and its upper surface is horizontal plane, will prop up the top that seat body (4) is welded on arch rib support (5) and contact with base plate (2) level that thrust is changed bearing.
6. the erection support of a kind of reinforced concrete arch bridge arch rib according to claim 5, it is characterized in that, the outer shape of described seat body (4) top plate body can be identical or different with base plate (2), and its diameter or area can be identical with base plate (2) or greater than base plate (2).
7. the preparation method that is used for claim 1 a reinforced concrete arch bridge arch rib, the installation site of corresponding arch rib support (5) at arch rib body (3) two ends, concreting is embedded bar (1) fixedly; By measuring the vertical curve after unwrapping wire is installed arch rib body (3), before installation, be indicated on the arch rib body (3), according to the angle vertical with this vertical curve horizontal line of striking in the bottom of embedded bar (1), cutting embedded bar (1) is again with the lower end welding of base plate (2) with embedded bar (1).
8. the preparation method of described arch rib according to claim 7 is characterized in that, the bearing capacity of described base plate (2) should be greater than the 4-6 of arch rib body (3) weight doubly.
9. according to claim 7 or the preparation method of 8 described arch ribs, it is characterized in that, described embedded bar (1) bulk strength should satisfy formula: SNf σ c〉kF;
In the formula:
The single cross-sectional area of S-embedded bar (1);
Total radical of N-embedded bar (1);
The single standard shear strength of f σ c-embedded bar (1) value;
K-thrust conversion bearing safety factor, k 〉=5;
F-embedded bar (1) contacts the mid-point computation horizontal thrust with arch rib body (3).
10. the preparation method of described arch rib according to claim 9 is characterized in that, described embedded bar (1) compressive strength should satisfy formula: SNf σ bc〉kG;
In the formula:
The single cross-sectional area of S-embedded bar (1);
Total radical of N-embedded bar (1);
The single compression strength value of f σ bc-embedded bar (1);
K-thrust conversion bearing safety factor, k 〉=5;
The gravity of G-arch rib body (3).
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| CN201210486979.9A CN102995553B (en) | 2012-11-27 | 2012-11-27 | Arch rib of reinforced concrete arch bridge and erection support and manufacture method of arch rib |
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| CN201210486979.9A CN102995553B (en) | 2012-11-27 | 2012-11-27 | Arch rib of reinforced concrete arch bridge and erection support and manufacture method of arch rib |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821088A (en) * | 2014-02-13 | 2014-05-28 | 中铁四局集团第四工程有限公司 | Intelligent measurement construction method for positioning arch rib of long railway tunnel |
| CN103866693A (en) * | 2014-03-13 | 2014-06-18 | 中石化胜利建设工程有限公司 | Installing method of reinforced concrete bowstring rod arch bridge arch ribs and hanging auxiliary bridge |
| CN104532738A (en) * | 2014-12-24 | 2015-04-22 | 福州大学 | Device for improving horizontal anti-seismic property of T-shaped concrete beam bridge and construction method thereof |
| CN104963292A (en) * | 2015-07-17 | 2015-10-07 | 重庆标王集成房屋科技开发有限公司 | Construction method of reinforced concrete multi-span arch bridge or continuous box structure bridge |
| CN108360389A (en) * | 2018-05-02 | 2018-08-03 | 长沙理工大学 | A kind of inclination Arch rib positioning device and localization method |
| CN111608693A (en) * | 2020-06-02 | 2020-09-01 | 仲恺农业工程学院 | High-strength steel pipe concrete arch |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143502A (en) * | 1975-07-14 | 1979-03-13 | Wyche Cyril T | Method of erecting a structural arch support |
| JPH10183999A (en) * | 1996-12-25 | 1998-07-14 | Okabe Co Ltd | Method of building movable form for arched concrete body |
| CN1740446A (en) * | 2005-09-26 | 2006-03-01 | 重庆交通学院 | Reinforcing method for long-span flat arch bridge |
| CN101215825A (en) * | 2007-12-27 | 2008-07-09 | 中铁四局集团有限公司 | Prestressing force concrete series rob arch bridge inverted sequence dismounting method |
| CN101481902A (en) * | 2009-01-21 | 2009-07-15 | 中铁三局集团有限公司 | V type pier inclined leg combined type support for continuous rigid frame bridge and layered cast-in-situ construction method |
| CN201933419U (en) * | 2011-03-03 | 2011-08-17 | 中铁一局集团有限公司 | Arch bridge arch rib cast-in-situ bracket |
| CN202284280U (en) * | 2011-10-19 | 2012-06-27 | 中铁四局集团第一工程有限公司 | Full space support construction beam body bottom plate inclined mold supporting pad structure |
| CN202954288U (en) * | 2012-11-27 | 2013-05-29 | 胜利油田胜利工程建设（集团）有限责任公司 | Reinforced concrete arch bridge arch rib and mounting support seat thereof |
-
2012
- 2012-11-27 CN CN201210486979.9A patent/CN102995553B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143502A (en) * | 1975-07-14 | 1979-03-13 | Wyche Cyril T | Method of erecting a structural arch support |
| JPH10183999A (en) * | 1996-12-25 | 1998-07-14 | Okabe Co Ltd | Method of building movable form for arched concrete body |
| CN1740446A (en) * | 2005-09-26 | 2006-03-01 | 重庆交通学院 | Reinforcing method for long-span flat arch bridge |
| CN101215825A (en) * | 2007-12-27 | 2008-07-09 | 中铁四局集团有限公司 | Prestressing force concrete series rob arch bridge inverted sequence dismounting method |
| CN101481902A (en) * | 2009-01-21 | 2009-07-15 | 中铁三局集团有限公司 | V type pier inclined leg combined type support for continuous rigid frame bridge and layered cast-in-situ construction method |
| CN201933419U (en) * | 2011-03-03 | 2011-08-17 | 中铁一局集团有限公司 | Arch bridge arch rib cast-in-situ bracket |
| CN202284280U (en) * | 2011-10-19 | 2012-06-27 | 中铁四局集团第一工程有限公司 | Full space support construction beam body bottom plate inclined mold supporting pad structure |
| CN202954288U (en) * | 2012-11-27 | 2013-05-29 | 胜利油田胜利工程建设（集团）有限责任公司 | Reinforced concrete arch bridge arch rib and mounting support seat thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821088A (en) * | 2014-02-13 | 2014-05-28 | 中铁四局集团第四工程有限公司 | Intelligent measurement construction method for positioning arch rib of long railway tunnel |
| CN103821088B (en) * | 2014-02-13 | 2015-12-30 | 中铁四局集团第四工程有限公司 | Railway is grown up Arch rib positioning intelligent measure construction method |
| CN103866693A (en) * | 2014-03-13 | 2014-06-18 | 中石化胜利建设工程有限公司 | Installing method of reinforced concrete bowstring rod arch bridge arch ribs and hanging auxiliary bridge |
| CN103866693B (en) * | 2014-03-13 | 2016-04-06 | 中石化胜利建设工程有限公司 | A kind of mounting method of steel concrete bowstring arch bridge arch rib |
| CN104532738A (en) * | 2014-12-24 | 2015-04-22 | 福州大学 | Device for improving horizontal anti-seismic property of T-shaped concrete beam bridge and construction method thereof |
| CN104963292A (en) * | 2015-07-17 | 2015-10-07 | 重庆标王集成房屋科技开发有限公司 | Construction method of reinforced concrete multi-span arch bridge or continuous box structure bridge |
| CN108360389A (en) * | 2018-05-02 | 2018-08-03 | 长沙理工大学 | A kind of inclination Arch rib positioning device and localization method |
| CN111608693A (en) * | 2020-06-02 | 2020-09-01 | 仲恺农业工程学院 | High-strength steel pipe concrete arch |
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| CN102995553B (en) | 2014-08-27 |
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Address after: 257000 No. two, 755 North Road, Dongying District, Shandong, Dongying Patentee after: SINOPEC PETROLEUM CONSTRUCTION SHENGLI Corp. Address before: 257000 No. two, 755 North Road, Dongying District, Shandong, Dongying Patentee before: Shengli Oilfield Shengli Engineering Construction (Group) Co.,Ltd. |
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Effective date of registration: 20180131 Address after: 100101 Chaoyang District, Jilin City, Beijing mouth road, No. 9 Co-patentee after: SINOPEC PETROLEUM CONSTRUCTION SHENGLI Corp. Patentee after: SINOPEC OILFIELD SERVICE Corp. Address before: 257000 No. two, 755 North Road, Dongying District, Shandong, Dongying Patentee before: SINOPEC PETROLEUM CONSTRUCTION SHENGLI Corp. |
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