CN104831640A - Construction method for reinforcing device of reinforced concrete bridge and bridge deck slab - Google Patents
Construction method for reinforcing device of reinforced concrete bridge and bridge deck slab Download PDFInfo
- Publication number
- CN104831640A CN104831640A CN201510232129.XA CN201510232129A CN104831640A CN 104831640 A CN104831640 A CN 104831640A CN 201510232129 A CN201510232129 A CN 201510232129A CN 104831640 A CN104831640 A CN 104831640A
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- reinforced concrete
- bridge
- stirrup portion
- concrete bridge
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/266—Concrete reinforced with fibres other than steel or glass
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a construction method for a reinforcing device of a reinforced concrete bridge and a bridge deck slab. The reinforcing device comprises a U-shaped steel hoop portion which tightly hoops the reinforced concrete bridge from bottom to top and two screw rod portions which are fixedly embedded below the bridge deck slab and are respectively connected with the two ends of the steel hoop portion, wherein the screw rod portions are locked with the steel hoop portion through assembled nuts. By adopting the above-mentioned technical scheme, the reinforcing device of the reinforced concrete bridge and the bridge deck slab provided by the invention has the advantages that, since the reinforced concrete bridge and the bridge deck slab are locked together in a pretightened manner through matched connection of the steel hoop portion and the screw rod portions, compared with the prior art, the stress lag effect of the traditional reinforcing device can be effectively avoided, the anchoring effectiveness is kept, the reinforcing effect is guaranteed, the shear strength of the reinforced concrete bridge is improved, the structure is simple and easy to realize and the comprehensive practicability is high; the construction method provided by the invention has the advantages that the steps are simple and clear and the efficiency of implementing the novel reinforcing device can be effectively improved.
Description
The application is the divisional application of " the novel reinforced device of a kind of Reinforced Concrete Bridge and bridge deck and construction method thereof ", and the applying date of original application is on May 27th, 2013, and application number is: 201310201050.1.
Technical field
The present invention relates to Technology Bridge Strengthening field, be specifically related to novel reinforced device and the construction method thereof of a kind of Reinforced Concrete Bridge and bridge deck.
Background technology
Bridge, as the important component part of lifeline engineering, is transport hub " throat ", and the destruction of bridge will cause the interruption of lifeline, and the loss caused is inestimable.Often due to outdoor environment work, easily aging, design standard improves bridge, traffic accident causes the factors such as damage, need reinforce bridge.The Shear Strengthening of bridge is an important content of bridge strengthening.Reinforced Concrete Bridge Shear Strengthening method is a lot, and conventional reinforcement means has Enlargement of Section, pastes Building Strengthened by FRP Sheets method, reinforcement by sticking of sheets etc.These traditional reinforcement means generally deposit following problem: (1) Stress resort effect problem, make reinforcement material and original component co-operation ability poor, greatly affect consolidation effect.(2) due to the existence of bridge deck, often cause reinforcement material anchorage length inadequate, the stripping damage of anchored end easily occurs.(3) traditional reinforcement means can not change the force-bearing situation of original structure, the internal injuries such as the crack existed in component and defect can not make up or reduce, if not Shi Hanzhang, reinforcement material just cannot play a role to existing crack, greatly affect its consolidation effect, constrain the use that it is reinforced at damaged member.(4) there is the scale of construction greatly in bridge strengthening, and demand high is reinforced in outsourcing, and traditional reinforcement means is difficult to reinforcing demand.
Given this, inventor furthers investigate the problems referred to above, then has this case to produce.
Summary of the invention
The object of the present invention is to provide the construction method of the bracing means of a kind of Reinforced Concrete Bridge and bridge deck, step simple and clear, efficiency of the practice is high.
In order to achieve the above object, the present invention adopts such technical scheme:
The bracing means of a kind of Reinforced Concrete Bridge and bridge deck, comprise the stirrup portion of the U-shaped of lock ring Reinforced Concrete Bridge from bottom to top, fixedly be embedded at two the threaded shank also linked together with the two ends in stirrup portion respectively below bridge deck, the nut that this threaded shank is passed through to arrange is together with described stirrup portion screw lock.
Above-mentioned stirrup portion has the connecting portion be connected with above-mentioned threaded shank, and this connecting portion is the junction plate of corresponding feet vertical with described threaded shank, and this junction plate carries and passes and the connecting hole pinned by above-mentioned nut for described threaded shank.
Above-mentioned junction plate has reinforcing rib.
Above-mentioned reinforcing rib is that the vertical part in the corresponding above-mentioned stirrup portion of long right-angle side connects, the plate muscle of the right-angled triangle that the corresponding above-mentioned junction plate of short right-angle side connects.
Above-mentioned stirrup portion is the steel plate of width along Reinforced Concrete Bridge length direction.
The bending place in above-mentioned stirrup portion is level and smooth arc.
Above-mentioned stirrup portion is provided with coupling in its bending place correspondence Reinforced Concrete Bridge and is padded on larger relative to bending place area billet therebetween.
The vertical part in above-mentioned stirrup portion is sticked and detects the strain ga(u)ge of stress herein.
Fixedly FRP cloth is fitted with outside above-mentioned stirrup portion.
The construction method of the bracing means of a kind of Reinforced Concrete Bridge and bridge deck:
(1) determine that the installation site in stirrup portion, bridge deck are firmly embedded the position of the hole of above-mentioned threaded shank and the position of bending place, Reinforced Concrete Bridge corresponding above-mentioned stirrup portion;
(2) hole in the position of the above-mentioned hole determined on bridge deck, the chamfered that bending place therewith matches is carried out in the position of bending place, the correspondence that above-mentioned Reinforced Concrete Bridge is determined above-mentioned stirrup portion, and at the above-mentioned billet of this chamfering place liner;
(3) clear up above-mentioned hole, and above-mentioned threaded shank is firmly embedded in this hole;
(4) after above-mentioned threaded shank meets requirement of strength, high strength structure glue is smeared inside above-mentioned stirrup portion, and by the described stirrup portion predetermined position of cuff in Reinforced Concrete Bridge from bottom to top, tighten described threaded shank and prestress application is carried out to described stirrup portion;
(5) external surface in above-mentioned stirrup portion firmly pastes FRP cloth along its length continuously.
After adopting technique scheme, the novel reinforced device of Reinforced Concrete Bridge of the present invention and bridge deck, because Reinforced Concrete Bridge and bridge deck pretension to be locked together by being connected of stirrup portion and threaded shank by it, compared with prior art, it can effectively avoid the Stress resort effect of traditional bracing means to produce, and keeps the validity of anchoring, ensure consolidation effect, improve the shear strength of Reinforced Concrete Bridge, and structure is simply easy to realize, comprehensive practical is strong;
Further, stirrup is fixedly fitted with FRP cloth outside portion, and because FRP material has good tensile strength, the good plastic strain performance of the high-strength pulling-resisting performance of FRP cloth and stirrup portion organically combines by this structure, effectively can improve integrative consolidation intensity of the present invention; FRP material has excellent corrosion-resistant and durability simultaneously, and to stirrup, portion effectively protects, and improves the durability in stirrup portion.
The present invention also proposes a kind of construction method of above-mentioned bracing means, step simple and clear, effectively can improve the efficiency implementing described novel reinforced device.
Accompanying drawing explanation
Fig. 1 is the structural representation of invention;
Fig. 2 is the using state schematic diagram of invention;
Fig. 3 is the using state schematic diagram of another angle of invention.
In figure:
1-stirrup portion 11-connecting portion
111-reinforcing rib
12-bending place 13-billet
2-threaded shank 21-nut
3-strain ga(u)ge 4-Reinforced Concrete Bridge
5-bridge deck 6-FRP cloth
Detailed description of the invention
In order to explain technical scheme of the present invention further, be described in detail below by specific embodiment.
The bracing means of a kind of Reinforced Concrete Bridge of the present invention and bridge deck, as Figure 1-3, comprises stirrup portion 1 and two threaded shank 2.
Stirrup portion 1 takes the shape of the letter U, lock ring Reinforced Concrete Bridge 4 from bottom to top, two threaded shank 2 are fixedly embedded at below bridge deck 5, and the two part exposed links together with the two ends in stirrup portion 1 respectively, the nut 21 that this threaded shank 2 is passed through to arrange is together with stirrup portion 1 screw lock, the prestressed stretch-draw in stirrup portion 1 is realized by tightening nut 21, transverse prestress is applied to Reinforced Concrete Bridge 4, and by Reinforced Concrete Bridge 4 together with bridge deck 5 firmly lock ring, realize the Shear Strengthening to Reinforced Concrete Bridge 5.
Preferably, stirrup portion 1 has the connecting portion 11 be connected with threaded shank 2, this connecting portion 11 is the junction plate of corresponding feet vertical with threaded shank 2, the connecting portion 11 of this junction plate form carries and passes and the connecting hole pinned by nut 21 for threaded shank 2, what namely threaded shank 2 exposed bridge deck 5 to partially pass through after described connecting hole together with nut 21 screw lock, reaches the connection object of stirrup portion 1 and the adjustable pretightning force of threaded shank 2.
Preferably, the connecting portion 11 of junction plate form has reinforcing rib 111, and reinforcing rib 111 can improve the intensity of connecting portion 11, and then can improve the fastening strength of entirety of the present invention.
Preferably, reinforcing rib 111 is that the vertical part in the corresponding stirrup portion 1 of long right-angle side connects, the sheet-beam structure of the right-angled triangle of connecting portion 11 connection of the corresponding junction plate form of short right-angle side, this characteristic utilizing triangle firm rational in infrastructure, and in conjunction with the stronger characteristic of short right-angle side bearing capacity, effectively can improve the intensity of connecting portion 11, improve the fastening strength of entirety of the present invention further.
Preferably, stirrup portion 1 is the steel plate of width along Reinforced Concrete Bridge 4 length direction, and this structure can strengthen the lock ring effect of the 1 pair of Reinforced Concrete Bridge 4 in stirrup portion.
Preferably, the bending place 12 in stirrup portion 1 is level and smooth arc, to avoid this bending place 12 stress to concentrate, improves its bearing strength.
Preferably, stirrup portion 1 is provided with coupling in its corresponding Reinforced Concrete Bridge in bending place 12 4 and is padded on therebetween and the billet 13 larger relative to bending place 12 area, billet 13 effectively can reduce the pretightning force pressure of the 12 pairs of Reinforced Concrete Bridge 4 in bending place, the bearing strength of reinforcing steel bar concrete-bridge 4 and total.
Preferably, the vertical part in stirrup portion 1 is sticked and detects the strain ga(u)ge 3 of stress herein.
Preferably, FRP (glass fiber reinforced plastic) cloth 6 is also fixedly fitted with outside stirrup portion 1, FRP material has good tensile strength, the good plastic strain performance of the high-strength pulling-resisting performance of FRP cloth 6 and stirrup portion 1 organically combines by this structure, by to stirrup portion 1 pretension, avoid the situation of Stress resort to occur, the characteristic of FRP cloth 6 can be played efficiently, effectively improve integrative consolidation intensity of the present invention; FRP material has excellent corrosion-resistant and durability simultaneously, effectively protects stirrup portion 1, improves the durability in stirrup portion 1.
The present invention also gives chapter and verse the construction method of bracing means of Reinforced Concrete Bridge in foregoing embodiments and bridge deck:
(1) determine the installation site in stirrup portion 1, the position of the bending place 12 in position that bridge deck 5 are firmly embedded the hole of threaded shank 2 and the corresponding stirrup portion 1 of Reinforced Concrete Bridge 4;
(2) hole in the position of the above-mentioned hole determined on bridge deck 5, the chamfered that bending place 12 therewith matches is carried out in the position of the corresponding bending place 12 that Reinforced Concrete Bridge 4 is determined, and at this chamfering place liner billet 13;
(3) clear up above-mentioned hole, and threaded shank 2 is firmly embedded in this hole.
(4) after threaded shank 2 meets requirement of strength, inside stirrup portion 1, smear high strength structure glue, and by stirrup portion 1 predetermined position of cuff in Reinforced Concrete Bridge 4 from bottom to top, tighten threaded shank 2 pairs of stirrup portions 1 and carry out prestress application.
(5) external surface in stirrup portion 1 firmly pastes FRP cloth 6 along its length continuously.
The bracing means of Reinforced Concrete Bridge of the present invention and bridge deck and construction method thereof, billet when ensure area be greater than stirrup portion bending place and corresponding to the chamfering of Reinforced Concrete Bridge, its concrete shape and size etc. can carry out adjusting and designing according to actual requirement; The concrete shape of the bending place in stirrup portion can carry out adjusting and designing according to actual requirement; The concrete size and dimensions of connecting portion etc. can carry out adjusting and designing according to actual requirement; Stirrup quality award from the ministry elects steel plate as, also can choose according to actual requirement.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present invention.
Claims (1)
1. a construction method for the bracing means of Reinforced Concrete Bridge and bridge deck, is characterized in that:
This bracing means comprises the stirrup portion of the U-shaped of lock ring Reinforced Concrete Bridge from bottom to top, fixedly be embedded at two the threaded shank also linked together with the two ends in stirrup portion respectively below bridge deck, the nut that this threaded shank is passed through to arrange is together with described stirrup portion screw lock; Above-mentioned stirrup portion has the connecting portion be connected with above-mentioned threaded shank, and this connecting portion is the junction plate of corresponding feet vertical with described threaded shank, and this junction plate carries and passes and the connecting hole pinned by above-mentioned nut for described threaded shank; Above-mentioned junction plate has reinforcing rib; Above-mentioned reinforcing rib is that the vertical part in the corresponding above-mentioned stirrup portion of long right-angle side connects, the plate muscle of the right-angled triangle that the corresponding above-mentioned junction plate of short right-angle side connects; Above-mentioned stirrup portion is the steel plate of width along Reinforced Concrete Bridge length direction; The bending place in above-mentioned stirrup portion is level and smooth arc; Above-mentioned stirrup portion is provided with coupling in its bending place correspondence Reinforced Concrete Bridge and is padded on larger relative to bending place area billet therebetween;
The construction method of this bracing means is as follows:
(1) determine that the installation site in stirrup portion, bridge deck are firmly embedded the position of the hole of above-mentioned threaded shank and the position of bending place, Reinforced Concrete Bridge corresponding above-mentioned stirrup portion;
(2) hole in the position of the above-mentioned hole determined on bridge deck, the chamfered that bending place therewith matches is carried out in the position of bending place, the correspondence that above-mentioned Reinforced Concrete Bridge is determined above-mentioned stirrup portion, and at the above-mentioned billet of this chamfering place liner;
(3) clear up above-mentioned hole, and above-mentioned threaded shank is firmly embedded in this hole;
(4) after above-mentioned threaded shank meets requirement of strength, high strength structure glue is smeared inside above-mentioned stirrup portion, and by the described stirrup portion predetermined position of cuff in Reinforced Concrete Bridge from bottom to top, tighten described threaded shank and prestress application is carried out to described stirrup portion;
(5) external surface in above-mentioned stirrup portion firmly pastes FRP cloth along its length continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232129.XA CN104831640B (en) | 2013-05-27 | 2013-05-27 | Construction method for reinforcing device of reinforced concrete bridge and bridge deck slab |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232129.XA CN104831640B (en) | 2013-05-27 | 2013-05-27 | Construction method for reinforcing device of reinforced concrete bridge and bridge deck slab |
| CN201310201050.1A CN103306216B (en) | 2013-05-27 | 2013-05-27 | The bracing means of a kind of Reinforced Concrete Bridge and bridge deck |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310201050.1A Division CN103306216B (en) | 2013-05-27 | 2013-05-27 | The bracing means of a kind of Reinforced Concrete Bridge and bridge deck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104831640A true CN104831640A (en) | 2015-08-12 |
| CN104831640B CN104831640B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310201050.1A Expired - Fee Related CN103306216B (en) | 2013-05-27 | 2013-05-27 | The bracing means of a kind of Reinforced Concrete Bridge and bridge deck |
| CN201510232129.XA Active CN104831640B (en) | 2013-05-27 | 2013-05-27 | Construction method for reinforcing device of reinforced concrete bridge and bridge deck slab |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310201050.1A Expired - Fee Related CN103306216B (en) | 2013-05-27 | 2013-05-27 | The bracing means of a kind of Reinforced Concrete Bridge and bridge deck |
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| Country | Link |
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| CN (2) | CN103306216B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024243A (en) * | 2018-08-23 | 2018-12-18 | 中铁大桥（南京）桥隧诊治有限公司 | A kind of drawing-resisting device between steel stringer and carriageway plate |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481165B (en) * | 2014-12-09 | 2017-03-15 | 卜良桃 | Reinforced beam affixing steel plate pressurization fixing device and reinforcement means |
| CN105586836A (en) * | 2016-02-18 | 2016-05-18 | 沈阳建筑大学 | Combined structure for compositely reinforcing T-beam |
| CN105804425A (en) * | 2016-02-18 | 2016-07-27 | 沈阳建筑大学 | Construction method for reinforcing T-beam through partially-bonded prestressed FRP |
| CN111877190A (en) * | 2020-08-12 | 2020-11-03 | 台州学院 | A reinforced structure that is used for hinge joint to become invalid to cause veneer atress disease bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032530A (en) * | 1999-07-16 | 2001-02-06 | Mitsui Constr Co Ltd | Reinforcing device and method for concrete columnar structure |
| JP2001152676A (en) * | 1999-11-25 | 2001-06-05 | East Japan Railway Co | Earthquake-resistant reinforcing method |
| JP2009133114A (en) * | 2007-11-30 | 2009-06-18 | Taisei Corp | Reinforcement structure of pole member with wall |
| CN101705662A (en) * | 2009-10-27 | 2010-05-12 | 华侨大学 | Novel pre-stressed steel plate hoop device and installation method thereof |
| CN201952744U (en) * | 2011-01-25 | 2011-08-31 | 西安建筑科技大学 | Novel reinforced concrete bridge structure |
| CN202745359U (en) * | 2012-08-06 | 2013-02-20 | 中建三局建设工程股份有限公司 | U-shaped steel bar bolt pull ring system for fixing cantilever frame steel beam |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08144541A (en) * | 1994-11-25 | 1996-06-04 | Mitsui Constr Co Ltd | Reinforcing method of beam having slab |
| CN202299473U (en) * | 2011-11-10 | 2012-07-04 | 中国建筑第七工程局有限公司 | Carbon fiber reinforced framework beam |
| CN102900242A (en) * | 2012-11-16 | 2013-01-30 | 南京工业大学 | Steel truss part restraint reinforced concrete roof beam reinforced structure |
| CN203320428U (en) * | 2013-05-27 | 2013-12-04 | 华侨大学 | Novel reinforcing device of reinforced concrete bridge and bridge deck |
-
2013
- 2013-05-27 CN CN201310201050.1A patent/CN103306216B/en not_active Expired - Fee Related
- 2013-05-27 CN CN201510232129.XA patent/CN104831640B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032530A (en) * | 1999-07-16 | 2001-02-06 | Mitsui Constr Co Ltd | Reinforcing device and method for concrete columnar structure |
| JP2001152676A (en) * | 1999-11-25 | 2001-06-05 | East Japan Railway Co | Earthquake-resistant reinforcing method |
| JP2009133114A (en) * | 2007-11-30 | 2009-06-18 | Taisei Corp | Reinforcement structure of pole member with wall |
| CN101705662A (en) * | 2009-10-27 | 2010-05-12 | 华侨大学 | Novel pre-stressed steel plate hoop device and installation method thereof |
| CN201952744U (en) * | 2011-01-25 | 2011-08-31 | 西安建筑科技大学 | Novel reinforced concrete bridge structure |
| CN202745359U (en) * | 2012-08-06 | 2013-02-20 | 中建三局建设工程股份有限公司 | U-shaped steel bar bolt pull ring system for fixing cantilever frame steel beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024243A (en) * | 2018-08-23 | 2018-12-18 | 中铁大桥（南京）桥隧诊治有限公司 | A kind of drawing-resisting device between steel stringer and carriageway plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104831640B (en) | 2017-01-18 |
| CN103306216B (en) | 2016-01-06 |
| CN103306216A (en) | 2013-09-18 |
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