CN104532760A - Method for reinforcing simply-supported plate or simply-supported beam bridge - Google Patents
Method for reinforcing simply-supported plate or simply-supported beam bridge Download PDFInfo
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- CN104532760A CN104532760A CN201410782400.2A CN201410782400A CN104532760A CN 104532760 A CN104532760 A CN 104532760A CN 201410782400 A CN201410782400 A CN 201410782400A CN 104532760 A CN104532760 A CN 104532760A
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- girder
- simply supported
- arch rib
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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
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Abstract
The invention discloses a method for reinforcing a simply-supported plate or simply-supported beam bridge, and belongs to the field of bridge engineering. The method includes the steps that skewbacks are arranged on the two side faces of an abutment of a span needing to be reinforced, and attached to the abutment, and the skewbacks and the abutment form a whole; arch ribs are arranged below the portion, of the span needing to be reinforced, of plate beams, the arc ribs and the bottom of the bridge form a whole on the middle section of the plate beams, the two ends of each arch rib abut against the skewbacks on the abutment, and the two ends of each arch rib and the skewbacks form a whole; transverse linkage beams are arranged on the bottom face, of the span needing to be reinforced, of the plate beams, the direction of the transverse linkage beams is perpendicular to the length direction of the plate beams, the transverse linkage beams and the bottom face of the bridge form a whole, and the transverse linkage beams and the arch ribs also form a whole. In the way, simple plate beam load carrying is changed into plate and arch composite structure load carrying, and the bearing force and the rigidity of an original structure are greatly improved. The method has the better reinforcing effect compared with reinforcing methods such as plate adhesion.
Description
Technical field
The invention belongs to Bridge Construction technical field, relate to a kind of bridge reinforcing method, particularly relate to the reinforcement means of a kind of simply supported slab or simply supported beam bridge.
Background technology
In existing more than 70 ten thousand bridge blocks of China, the bridge of simply supported slab structure and the bridge of simple beam structure of medium and small span quantitatively occupy absolute majority.Due to many-sided reasons such as design, construction and management, quality flaw is just there is before many bridges put into effect, add that maintenance is difficult to put in place and overload and seriously wait reality factor, cause bridge defect in operation at present comparatively generally, have a strong impact on bridge safty and durability.In order to meet traffic requirement, need some medium-small span bridges to remove to rebuild, but the method is not only uneconomical, and can suspend traffic, time-consumingly takes a lot of work.Therefore, usually need in actual conditions to reinforce to make it meet progressively heavy traffic to simply supported slab or simply supported beam.
Because the rigidity of plate is relatively little, add and be mutually close between each plate laterally, except plate base space, web side does not reinforce space.Therefore, although plank frame is mainly used in small bridge, its reinforcing is but very difficult.At present, the main reinforcement means of simply supported slab structure has:
(1) fibrous material or steel plate is pasted at the bottom of plate: this method adopts construction structure glue carbon cloth to be pasted onto concrete surface or adopts epoxy resin series cementing agent steel plate to be bonded in tensile zone or the weak part of slab bridge, makes pasted material and plate jointly stressed with the object reaching enhancing.This method enhances tensile property at the bottom of plate, can improve the anti-bending bearing capacity of plate to a certain extent, but effect is very little in the rigidity improving plate;
(2) bottom surface Shi Hanzhang: this method by being anchored in the presstressed reinforcing steel on the supporting angle steel bottom the side plate of both sides, to bridge Shi Hanzhang.This method not only can improve the stress of plate in advance, and can improve the anti-bending bearing capacity of plate, but it cannot apply powerful prestressing force to plank frame, and consolidation effect is limited.
Due to simply supported slab or simply supported beam reinforcing mode limited, and improve the limited in one's ability of original structure bearing capacity and stiffness, the reinforcement means of existing simply supported slab or simply supported beam cannot be satisfied the demand the object of construction production of significantly reinforcing and carrying and carrying, more cannot meet the requirement of the special circumstances such as Special Loads gap bridge, and requirement easily in reasonable in economy, construction can not be reached.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides the reinforcement means of a kind of simply supported slab or simply supported beam bridge, its object is to utilize plate arch combined effect to reinforce simply supported slab and simply supported beam, adopt the method can not only increase the bearing capacity and stiffness of bridge board structure, make the simply supported slab of reinforcing or simply supported beam can meet the requirement of extraordinary load gap bridge, the inventive method can also meet the project demands significantly reinforced and carry and carrying, and solves the technical problem of the scarce capacity improving original structure bearing capacity and stiffness in current reinforcement means thus.
For achieving the above object, the invention provides the reinforcement means of a kind of simply supported slab or simply supported beam bridge, this simply supported slab or simply supported beam bridge comprise at least one across, often across the plate-girder for passing through thereon for vehicle and pedestrian comprising pier and support by pier, it is characterized in that, comprise the steps:
Need reinforcement across two sides of pier all abut is set, this abut to be attached on pier and to form entirety with pier;
Need reinforcement across plate-girder below arch rib is set, this arch rib forms entirety bottom this plate-girder stage casing and plate-girder, and two of this arch rib ends abut the abut on pier respectively, and these two ends and abut form entirety;
Need reinforcement across plate-girder bottom surface transverse strut is set, the length direction vertical panel beam length direction of this transverse strut also forms entirety with plate-girder bottom surface, and this transverse strut and described arch rib also form entirety;
The each entirety more than formed, stressed to become plate arch combining structure stressed from simple plate-girder to make the stressing conditions of simply supported slab or simply supported beam bridge, its bearing capacity and stiffness is greatly improved, thus realizes the reinforcing to former simply supported slab or simply supported beam bridge.
Further, need reinforcement across plate-girder stage casing bottom surface arrange transverse strut there are two or many that are parallel to each other, transverse strut has one fixed width, this width should be determined by concrete calculating, this transverse strut all forms entirety with plate-girder bottom surface over the entire width, and arch rib forms entirety with this transverse strut in whole lateral ties beam width.
Further, need reinforcement across plate-girder below arch rib is set, cross-sectional form or the ratio of rise to span of arch rib can be the same or different.Can require according to designing requirement and Navigation capacity the cross-sectional form or the ratio of rise to span that change arch rib, to realize rigidity and the bearing capacity of manual control reinforcing in practical operation.Cross-sectional form is shape of cross section and cross sectional area.
Further, need reinforcement across plate-girder below the many arch ribs be parallel to each other are set along plate-girder width, to make plate-girder at its whole width all by transverse girder between arch rib.
Further, need reinforcement across two sides of pier arrange in abut step, first implant abut reinforcing bar to pier, and be anchored at left and right on same pier across arch springing reinforcing bar penetrate pier shaft thickness, to make the abut bar connecting being positioned at described two sides.
Further, need reinforcement across plate-girder below arrange in arch rib step, be first fixedly connected with playing load in arch rib with described abut reinforcing bar with the arch rib reinforcing bar of connection function.
Further, need reinforcement across plate-girder bottom surface arrange in transverse strut step, first implant " U " shape reinforcing bar connecting plate-girder and transverse strut to plate-girder bottom surface, described " U " shape reinforcing bar openend is positioned at plate-girder.
Further, arch rib " U " shape reinforcing bar is implanted in the place contacted with plate-girder in arch rib stage casing, to make arch rib and plate-girder strong bonded.
Further, in described arch rib reinforcing bar, part reinforcing bar is through described arch rib " U " shape reinforcing bar, forms entirety to make described arch rib after concreting in plate-girder stage casing and plate-girder bottom surface.
In the present invention, need the structure supplying vehicle and pedestrian to pass through thereon of simply supported slab and the simply supported beam be reinforced to be called as plate-girder, need the bridge pier of the bridge be reinforced and abutment to be called pier.Simply supported slab and simply supported beam can be called freely-supported plate-girder for short.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1, reinforcement means provided by the present invention, owing to setting up arch rib in plate-girder bottom surface, in plate-girder stage casing, also namely span centre section and plate-girder bottom surface form entirety to arch rib, be equivalent to the stressed acting combination by plate-girder and arch rib, thus increased substantially the bearing capacity and stiffness being reinforced rear plate-girder, make the bridge after reinforcing can not only meet Special Loads to pass through, can also have more more than needed.The inventive method has consolidation effect more better than reinforcing method such as pasting boards materials;
2, in the inventive method, the arch rib power acted on abut is equivalent to " freely " and provides crunch between the abut of attachment and pier, improve the adhesion stress of the two bonding surface, effectively enhance the connection between newly-increased abut and pier, guarantee to connect reliably;
3, the strenthening member type of reinforcing method of the present invention is few, and stressed simple, clear and definite, plate arch combined effect is remarkable;
4, feature of the present invention is also that the structural entity bearing capacity and stiffness after reinforcing can realize artificial adjustment by the sectional dimension and ratio of rise to span adjusting arch rib;
5, reinforcement means provided by the present invention is implemented at the bottom of bridge, easy construction, and on the impact of bridge deck traffic during avoiding strengthening construction;
6, the inventive method is very suitable for the bridge construction stabilization works of Mid and minor spans, the plank frame that especially rigidity is less.
Accompanying drawing explanation
Fig. 1 is the Supported Slab Bridge structural representation after reinforcing in the embodiment of the present invention;
Fig. 2 is reinforced steel general diagram in the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention;
Fig. 3 is the reinforced steel schematic diagram of pier in the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention;
Fig. 4 is the reinforcing full-page proof elevation of the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention;
Fig. 5 is the reinforcing cross-sectional drawing of the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention, and this cross section is perpendicular to direction of traffic.
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein:
1-arch rib 2-transverse strut 3-abut
4-raw sheet beam 5-bridge pier 6-abutment
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
In the present invention, need the structure supplying vehicle and pedestrian to pass through thereon of simply supported slab and the simply supported beam be reinforced to be called as plate-girder, need the bridge pier of the bridge be reinforced and abutment to be called pier.
Simply supported slab and simply supported beam comprise at least one across, in general, bridge have multiple across.
The step that the inventive method mainly comprises is:
First implant the abut reinforcing bar playing load or connection function in abut to pier, and the left and right be anchored on same bridge pier is across arch springing reinforcing bar, will penetrate pier shaft thickness when bar planting, to make abut bar connecting.Then lay other reinforcing bars, then concreting in abut, namely need reinforcement across two sides of pier all abut is set, after concrete setting, this abut to be attached on pier and to form entirety with pier;
Need reinforcement across plate-girder below along plate-girder width, the many arch ribs be arranged parallel to each other are set, this arch rib forms entirety bottom plate-girder stage casing and plate-girder, and two of this arch rib ends abut the abut on pier respectively, and these two ends and abut form entirety; Need reinforcement across plate-girder below arch rib is set time, the cross sectional area of arch rib, shape of cross section or ratio of rise to span can be the same or different.Can require to change the cross sectional area of arch rib, shape of cross section or ratio of rise to span according to designing requirement and Navigation capacity in practical operation, to realize rigidity that manual control reinforces and bearing capacity.Need reinforcement across plate-girder below along plate-girder width, the many arch ribs be arranged parallel to each other are set, plate-girder can be made at its whole width all by transverse girder between arch rib.The concrete steps arranging arch rib are: be first fixedly connected with the part reinforcing bar in abut by arch rib hogging rib reinforcement, being fixedly connected with herein is welding, can also be the connected modes between the reinforcing bar such as riveted joint, hoop bundle." U " shape reinforcing bar that in arch rib reinforcing bar, part reinforcing bar is implanted through arch rib and plate-girder bottom surface, forms entirety to make arch rib after concreting in plate-girder stage casing and plate-girder bottom surface;
Need reinforcement across plate-girder bottom surface transverse strut is set, the length direction vertical raw sheet beam length direction of this transverse strut is also implanted bar connecting with bridge underrun and is formed entirety, and this transverse strut and described arch rib also form entirety in plate-girder stage casing.Transverse strut has one fixed width, and can be two or many that are parallel to each other, concrete quantity is determined according to designing and calculating, in actual conditions, transverse strut may do not had, if had, then necessarily be at least two, the width of transverse strut should be determined by concrete calculating, two transverse struts are all positioned at plate-girder stage casing and separated by a distance, plate-girder stage casing etc. is all span centre section, and this transverse strut all forms entirety over the entire width with plate-girder bottom surface, and arch rib forms entirety with this transverse strut in whole lateral ties beam width.In this step, first implant " U " shape reinforcing bar connecting plate-girder and transverse strut to plate-girder bottom surface, described " U " shape reinforcing bar openend is positioned at plate-girder.In transverse strut, be also furnished with other steel bar stress along its length.
Namely, described abut, arch rib and transverse strut adopt first implants reinforcing bar bottom pier and plate-girder, then other reinforcing bars of laying structure, the mode of concreting obtains again, to make abut and pier, arch rib and abut, arch rib all forms entirety at plate-girder stage casing and transverse strut and plate-girder bottom surface, in this way, stressed to become plate arch combining structure stressed from simple plate-girder to make stressing conditions, even if partially only consider the effect of encircleing safely, the bearing capacity and stiffness on original structure top also can be increased substantially; Arch rib acts on counter-force on abut also for provide crunch between abut and pier, improves the adhesion stress of the two bonding surface, effectively enhances the connection between newly-increased abut and pier, guarantees to connect reliable.
Fig. 1 is the Supported Slab Bridge structural representation after reinforcing in the embodiment of the present invention, this bridge totally three across, by reach in the south north be respectively across footpath: first across 6.9m; Second across 7.0m; 3rd across 6.8m; Total length overall length 20.7 meters.Bridge deck width is guardrail and the safety belt that clear span 12.5m adds 2 × 0.75m, bridge floor overall with 14.0m.Simply supported slab bridge in this figure comprises raw sheet beam 4, abutment 6, and abutment quantity is 2, and be distributed in end of the bridge and bridge tail respectively, bridge pier quantity is 2, and be distributed between two abutments, raw sheet beam 4, bridge pier 5 and abutment 6 constitute the main force mechanism of this bridge.Raw sheet beam 4 is positioned at above pier, supports by pier, and pedestrian and vehicle pass through from dealing raw sheet beam.At the horizontal direction of raw sheet beam, also namely perpendicular to direction of traffic being furnished with transverse strut 2, it is for connecting multiple arch rib 1 be arranged in parallel for entirety, and is fixed as entirety with raw sheet beam, connection solid and reliable between its arch rib and raw sheet beam simultaneously.Arch rib 3 is attached on pier, and arch rib 3 is by the active force of arch rib, and " freely " provides crunch between attaching abut and pier, improves the adhesion stress of the two bonding surface, effectively enhances the connection between newly-increased abut and pier, guarantee connection reliability.
Composition graphs 2, the stressing conditions of the simply supported slab bridge adopting the inventive method to reinforce is analyzed as follows: when pedestrian and vehicle enter on the simply supported slab of bridge, downward pressure is applied to simply supported slab, the arch structure shared that this pressure is obtained by former simply supported slab or simple beam structure and reinforcing, vertical counter-force, horizontal reacting force and moment of flexure is produced in arch springing cross section after arch rib is stressed, wherein horizontal reacting force is provide crunch between abut and pier, makes both strong bonded and enhances the stability of reinforcing rear structure; Transverse strut then plays the effect of lateral ties, enhancing structure lateral stiffness and the raising structural integrity strengthened between arch rib.Before comparing reinforcing, simply supported slab or simply supported beam is stressed, and after reinforcing, structure is plate-arch combining structure, and its superstructure bearing capacity and stiffness is larger, thus realizes the object of reinforcing.
Fig. 2 is reinforced steel general diagram in the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention, it should be noted, this figure is only for signal, and actual reinforcing bar is laid and need be calculated through concrete.As we know from the figure, in pier, implant abut reinforcing bar, and lay other steel bar stresses and the distributing bar playing maintenance, drawknot, distribution effect.Arch rib reinforcing bar and abut reinforcing bar fixed with each other, both guarantees firmly connect.In order to ensure the firm connection of arch rib and raw sheet soffit, the place contacted with raw sheet beam in arch rib stage casing also implants " U " shape reinforcing bar, in arch rib reinforcing bar, part reinforcing bar have passed through this " U " shape reinforcing bar, also implant " U " shape reinforcing bar in transverse strut and between raw sheet beam, but do not draw in the figure.In this figure, black thickened portion is reinforcing bar, and the point of black is the reinforcing bar perpendicular to paper, the lines of the non-overstriking of black be build shaping after planform.
Fig. 3 is the reinforced steel schematic diagram of pier in the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention, and this schematic diagram is the sectional view perpendicular to abut length direction, and the length direction of abut is consistent with the width of bridge floor.In this figure, relatively thick for being implanted in the steel bar stress in pier, the reinforcing bar that the dot representative of black is arranged along abut length direction.In this figure, abut length direction is namely perpendicular to paper.
The reinforcing full-page proof elevation of the Supported Slab Bridge structure of reinforcing in Fig. 4 embodiment of the present invention, this figure is the schematic diagram built concrete on distributing bar and steel bar stress after.This schematic diagram is second across schematic diagram along its length, formed as a whole, and the stage casing of arch rib 3 and raw sheet beam is also formed as entirety by bar planting and concreting from the known transverse strut 2 of figure with arch rib 1.Arch rib 1 and abut 3 also by concreting and colligation, welded reinforcement and form entirety, make arch rib, abut and transverse strut compact siro spinning technology for overall.This figure Wave line represents the actual water surface.
Fig. 5 is the reinforcing cross-sectional drawing of the Supported Slab Bridge structure of reinforcing in the embodiment of the present invention, and this cross section is perpendicular to direction of traffic.As we know from the figure, bridge pier or abutment are a monoblock steel concrete, raw sheet beam to be positioned at above bridge pier and abutment and by the support of bridge pier and abutment, and raw sheet beam is also provided with guardrail (be positioned in Fig. 5 above raw sheet beam and symmetrical ledge is guardrail).And then transverse strut 2 is below raw sheet beam, with transverse strut 2 close contact for the many arch ribs be parallel to each other 1, arch rib 1 and abut 3 form entirety, on the bridge pier that abut 3 entirety is attached to steel concrete or abutment, the length of abut 3 is equal to or slightly less than the width of bridge pier or abutment, and abut 3 is also the steel concrete of a monoblock.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a reinforcement means for simply supported slab or simply supported beam bridge, this simply supported slab or simply supported beam bridge comprise at least one across, often across comprising pier and by the plate-girder for passing through thereon for vehicle and pedestrian that pier supports, it is characterized in that, comprise the steps:
Need reinforcement across two sides of pier all abut is set, this abut to be attached on pier and to form entirety with pier;
Need reinforcement across plate-girder below arch rib is set, this arch rib forms entirety bottom this plate-girder stage casing and plate-girder, and two of this arch rib ends abut the abut on pier respectively, and these two ends and abut form entirety;
Need reinforcement across plate-girder bottom surface transverse strut is set, the length direction vertical panel beam length direction of this transverse strut also forms entirety with plate-girder bottom surface, and this transverse strut and described arch rib also form entirety;
The each entirety more than formed, stressed to become plate arch combining structure stressed from simple plate-girder to make the stressing conditions of simply supported slab or simply supported beam bridge, its bearing capacity and stiffness is greatly improved, thus realizes the reinforcing to former simply supported slab or simply supported beam bridge.
2. the reinforcement means of a kind of simply supported slab as claimed in claim 1 or simply supported beam bridge, is characterized in that, need reinforcement across plate-girder stage casing bottom surface arrange transverse strut there are two or many that are parallel to each other.
3. the reinforcement means of a kind of simply supported slab as claimed in claim 1 or simply supported beam bridge, it is characterized in that, need reinforcement across plate-girder below cross sectional area and the similar and different arch rib of ratio of rise to span are set, to realize rigidity that manual control reinforces and bearing capacity.
4. the reinforcement means of a kind of simply supported slab as claimed in claim 1 or simply supported beam bridge, it is characterized in that, need reinforcement across plate-girder below the many arch ribs be parallel to each other are set along plate-girder width, to make plate-girder at its whole width all by transverse girder between arch rib.
5. the reinforcement means of a kind of simply supported slab as claimed in claim 1 or simply supported beam bridge, it is characterized in that, need reinforcement across two sides of pier arrange in abut step, first implant abut reinforcing bar to pier, and be anchored at left and right on same pier across arch springing reinforcing bar penetrate pier shaft thickness, to make the abut bar connecting being positioned at described two sides.
6. the reinforcement means of a kind of simply supported slab as claimed in claim 5 or simply supported beam bridge, is characterized in that, need reinforcement across plate-girder below arrange in arch rib step, first arch rib reinforcing bar is fixedly connected with described abut reinforcing bar.
7. the reinforcement means of a kind of simply supported slab as claimed in claim 6 or simply supported beam bridge, it is characterized in that, need reinforcement across plate-girder bottom surface arrange in transverse strut step, first implant " U " shape reinforcing bar connecting plate-girder and transverse strut to plate-girder bottom surface, described " U " shape reinforcing bar openend is positioned at plate-girder.
8. the reinforcement means of a kind of simply supported slab as claimed in claim 7 or simply supported beam bridge, is characterized in that, arch rib " U " shape reinforcing bar is implanted in the place contacted with plate-girder in arch rib stage casing, to make arch rib and plate-girder strong bonded.
9. the reinforcement means of a kind of simply supported slab as claimed in claim 8 or simply supported beam bridge, it is characterized in that, in described arch rib reinforcing bar, part reinforcing bar is through described arch rib " U " shape reinforcing bar, forms entirety to make described arch rib after concreting in plate-girder stage casing and plate-girder bottom surface.
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| CN201410782400.2A CN104532760B (en) | 2014-12-16 | 2014-12-16 | The reinforcement means of a kind of simply supported slab or simply supported beam bridge |
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| CN201410782400.2A CN104532760B (en) | 2014-12-16 | 2014-12-16 | The reinforcement means of a kind of simply supported slab or simply supported beam bridge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105484169A (en) * | 2015-12-31 | 2016-04-13 | 长安大学 | Plate girder bridge reinforcing structure and construction method thereof |
| CN105755968A (en) * | 2016-03-23 | 2016-07-13 | 韦积分 | Reinforcement device for simply supported girder bridge |
| CN106088651A (en) * | 2016-07-12 | 2016-11-09 | 叶长青 | The ruggedized construction of concrete floor |
| CN106149572A (en) * | 2016-07-18 | 2016-11-23 | 江苏科技大学 | A kind of beam bridge ruggedized construction and reinforcement means |
| CN106351131A (en) * | 2016-09-21 | 2017-01-25 | 华中科技大学 | Method for transforming rigid-framed arch bridge deck slab without supports |
| CN107938524A (en) * | 2017-11-03 | 2018-04-20 | 王燕 | A kind of bridge strengthening device and its implementation |
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| US6018834A (en) * | 1995-11-14 | 2000-02-01 | Jada Ab | Method for building a bridge and bridge built according to said method |
| CN202899046U (en) * | 2012-09-18 | 2013-04-24 | 贵阳铝镁设计研究院有限公司 | Reinforced structure of simple supported bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6018834A (en) * | 1995-11-14 | 2000-02-01 | Jada Ab | Method for building a bridge and bridge built according to said method |
| CN202899046U (en) * | 2012-09-18 | 2013-04-24 | 贵阳铝镁设计研究院有限公司 | Reinforced structure of simple supported bridge |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484169A (en) * | 2015-12-31 | 2016-04-13 | 长安大学 | Plate girder bridge reinforcing structure and construction method thereof |
| CN105755968A (en) * | 2016-03-23 | 2016-07-13 | 韦积分 | Reinforcement device for simply supported girder bridge |
| CN106088651A (en) * | 2016-07-12 | 2016-11-09 | 叶长青 | The ruggedized construction of concrete floor |
| CN108104505A (en) * | 2016-07-12 | 2018-06-01 | 叶长青 | The reinforced construction method of concrete floor |
| CN106088651B (en) * | 2016-07-12 | 2018-07-24 | 叶长青 | The ruggedized construction of concrete floor |
| CN106149572A (en) * | 2016-07-18 | 2016-11-23 | 江苏科技大学 | A kind of beam bridge ruggedized construction and reinforcement means |
| CN106149572B (en) * | 2016-07-18 | 2018-04-24 | 江苏科技大学 | A kind of beam bridge ruggedized construction and reinforcement means |
| CN106351131A (en) * | 2016-09-21 | 2017-01-25 | 华中科技大学 | Method for transforming rigid-framed arch bridge deck slab without supports |
| CN107938524A (en) * | 2017-11-03 | 2018-04-20 | 王燕 | A kind of bridge strengthening device and its implementation |
| CN107938524B (en) * | 2017-11-03 | 2019-12-31 | 中铁二十二局集团第四工程有限公司 | Bridge reinforcing device and implementation method thereof |
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| CN104532760B (en) | 2015-10-21 |
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