CN104153302A - Method for reinforcing concrete bridge floor beam - Google Patents
Method for reinforcing concrete bridge floor beam Download PDFInfo
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- CN104153302A CN104153302A CN201410405916.5A CN201410405916A CN104153302A CN 104153302 A CN104153302 A CN 104153302A CN 201410405916 A CN201410405916 A CN 201410405916A CN 104153302 A CN104153302 A CN 104153302A
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Abstract
The invention relates to a method for reinforcing a concrete bridge floor beam. The method comprises the steps that through holes are formed in bridge floor plates on the two sides of the bridge floor beam in a spaced mode in the longitudinal direction of a bridge floor, and screw rod holes stretching upwards are formed in the bottom of the bridge floor beam in a spaced mode; the bridge floor beam and nearby sundries are cleaned; cracks and damaged positions on the bridge floor beam are processed; the whole surface of the bridge floor beam and the lower bottom faces of the bridge floor plates, in the range of one meter, on the two sides of the bridge floor beam are evenly coated with waterproof adhesive glue; open end steel box beams are mounted, and self-compacting concrete is poured into the open end steel box beams through pouring holes formed in a first vertical side wall and a second vertical side wall of the open end steel box beams; normal temperature maintenance is carried out for 45 days. By the adoption of the method for reinforcing the concrete bridge floor beam, good combination between new materials and old materials can be guaranteed, generation of the cracks or damaged positions on the surface of the bridge floor beam can be avoided greatly.
Description
Technical field
The present invention relates to a kind of reinforcement means of concrete bridge deck beam, belong to the technical field that building safety is reinforced.
Background technology
Concrete bridge deck beam in use, usually can be because of being subject to that external force is collided or structure self distortion in environment and produce crack, breakage etc. around.Collide when serious, even likely can cause large-area breakage and make reinforcing steel bars exposed concrete bridge deck beam.If repaired not in time, reinforcing bar is understood further corrosion, and then has influence on the safety of structure.On the other hand, along with the development in epoch, the bridge floor beam that some are long neglected and in disrepair not only faces the problem of how to repair crack and damage, more importantly how can keep even increasing its supporting capacity.This just need to repair and consolidation process existing concrete bridge floor beam.
In prior art, the reparation of concrete bridge deck beam is generally adopted and repairs glue or repair the direct plugging damaged position of cement mortar.So simple construction not only can not guarantee the tight joint between the old and new's material, and repair materials also can again produce crack or be damaged soon.On the other hand, in prior art, the reinforcing of concrete bridge deck beam is generally adopted to Enlargement of Section, by the surrounding's concreting at bridge floor beam, increase the cross section of bridge floor beam, thereby improve its bearing capacity.But come increasing section can not avoid well crack and damaged generation again by concreting.This be because, through the structural outer surface of this processing, remain concrete structure, it also may again ftracture and be damaged.
Therefore the reinforcement means that, needs a kind of concrete bridge deck beam of better effects if in prior art.
Summary of the invention
The reinforcement means of the concrete bridge deck beam that the present invention adopts, not only can guarantee the good combination between the old and new's material, and can also greatly avoid the generation of bridge floor beam external crack or damaged part.
Reinforcement means according to concrete bridge deck beam of the present invention, comprises the following steps:
(1) along the longitudinal direction of bridge floor, on the bridge deck of bridge floor beam both sides, interval arranges through hole, for fastening anchor bolt is passed; Bottom interval at bridge floor beam arranges upwardly extending screw hole, for anchoring dilating screw;
(2) utilize giant that flushing pressure is 20-30Mpa to rinse bridge floor beam and be positioned at the foreign material on the bottom surface of bridge deck of the 1 meter of scope in bridge floor beam both sides, after rinsing well, airing is 24 hours, makes its surperficial bone dry;
(3) crack that is less than 0.2mm for width adopts injection water-proof binding glue seal processings, until water-proof binding glue, is full of when also therefrom overflow in crack and stops injecting; Water-proof binding glue is 1 by petroleum bitumen, epoxy resin, polyacrylate dispersion, carborundum, silane coupler according to mass ratio: 3.1-3.2: 0.2-0.25: 0.3-0.4: 0.1-0.12 is mixed, preparation method is: first epoxy resin, polyacrylate dispersion mixed and be heated to 110 ± 2 ℃, formation stirs after then pouring tekite oil asphalt into and adding carborundum, silane coupler;
For width, be greater than the crack of 0.2mm, utilize cutting tool to cut and form the wide groove of 1cm along crack, the degree of depth of groove equals the depth capacity in crack; After groove has cut, utilize the high pressure air rifle of 40-50Mpa that the foreign material in groove are all removed; Then, brushing interfacial agents in groove, interfacial agents is 1 by Carboxy emulsion, cement, fine sand and silicon powder according to mass ratio: 0.3-0.4: 0.2-0.25: 0.2-0.22 mixes and forms;
For damaged part, first utilize the high pressure air rifle of 70-80Mpa to impact damaged part, to remove its periphery, there is loosening concrete structure, exposed reinforcing bar is polished totally and brush rich zinc anti-corrosive primer; After treating that priming paint is dry, in the above-mentioned interfacial agents of damaged part brushing;
(4) on the whole surface of bridge floor beam and be positioned on the bottom surface of bridge deck of the 1 meter of scope in bridge floor beam both sides and evenly smear described water-proof binding glue;
(5) construction opening steel case beam;
Wherein, open steel box beam comprises the first horizontal flange, the first vertical side walls, base plate, the second vertical side walls and the second horizontal flange, wherein on the first horizontal flange and the second horizontal flange, offer the first hole of passing for described fastening anchor bolt, on base plate, offer the second hole of passing for described dilating screw; In the first vertical side walls and the second vertical side walls, be provided with spaced the first T-shaped stiffening rib of many rows, the first T-shaped stiffening rib of adjacent row is crisscross arranged, and in the first vertical side walls and the second vertical side walls, is also interval with pouring hole; Base plate is provided with the second T-shaped stiffening rib that two rows longitudinally arrange continuously;
During installation, first with fastening anchor bolt, the first horizontal flange of open steel box beam and the second horizontal flange are fastened on bridge deck, between the top of fastening anchor bolt and the upper surface of bridge deck, be provided with rubber pad, between the soffit of the first horizontal flange and bridge deck and the second horizontal flange and the soffit of bridge deck, be provided with permeable cushion; Then, dilating screw is anchored in described screw hole through the second hole of offering on the base plate of open steel box beam, between the bottom of dilating screw and the base plate of open steel box beam, is also provided with permeable cushion;
(6) by being arranged on the first vertical side walls of described open steel box beam and the described pouring hole in the second vertical side walls, in open steel box beam, build self-compacting concrete;
Described self-compacting concrete is 1 by cement, flyash, haydites of book structure, fine sand, silica flour, sulphoaluminate expander, water reducing agent and water according to mass ratio: 0.3-0.35: 0.2-0.22: 0.15-0.17: 0.08-0.10: 0.05-0.06: 0.05-0.06: 0.28-0.35 mixes and forms; Wherein, described water reducing agent is according to mass ratio, to be 1 by fumaric acid, methacrylic acid, ammonium persulfate, acetamide, NaOH: 0.5-0.7: 0.01-0.15: 0.2-0.26: 0.1-0.3 is mixed;
(7) normal temperature maintenance is 45 days.
Preferably, water-proof binding glue is 1: 3.1: 0.23 by petroleum bitumen, epoxy resin, polyacrylate dispersion, carborundum, silane coupler according to mass ratio: be mixed at 0.36: 0.12.
Preferably, interfacial agents is 1: 0.3: 0.2 by Carboxy emulsion, cement, fine sand and silicon powder according to mass ratio: 0.22 mixes and forms.
Preferably, self-compacting concrete is 1: 0.32: 0.2 by cement, flyash, haydites of book structure, fine sand, silica flour, sulphoaluminate expander, water reducing agent and water according to mass ratio: 0.17: 0.10: 0.056: mix at 0.06: 0.3 and form.
Preferably, water reducing agent is according to mass ratio, to be 1: 0.54: 0.09 by fumaric acid, methacrylic acid, ammonium persulfate, acetamide, NaOH: be mixed at 0.25: 0.16.
Preferably, the wall thickness of open steel box beam is 3-6mm, and the concrete thickness of building in it is 15-40mm.
Adopt the reinforcement means of concrete bridge deck beam of the present invention, its consolidation effect is remarkable, in building safety field of reinforcement, has broad application prospects.
Accompanying drawing explanation
Fig. 1 has shown the average case of impaired concrete bridge deck beam.
Fig. 2 has shown the schematic cross-section that uses the concrete bridge deck beam after reinforcement means of the present invention is reinforced.
Fig. 3 has shown the lateral view of the inside of the first vertical side walls and the second vertical side walls.
Fig. 4 has shown the top view of the inside of base plate.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with schematic figures, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can be combined mutually.
As shown in Figure 1, the average case that has wherein shown impaired concrete bridge deck beam 1.In long-term use procedure, concrete bridge deck beam 1 may be formed with pit shape and may expose the crack 3 that the damaged part 4 of reinforcing bar, crack 2 that width is less than 0.2mm and width are greater than 0.2mm on surface.In order to guarantee the requirement for bearing capacity of bridge floor beam and the safe enough of bridge, need first these damaged parts on bridge floor beam to be repaired, then bridge floor beam is reinforced.In the present invention, first the crack on bridge floor beam and damaged part are processed, then by bridge floor beam around outsourcing open steel box beam and within it the mode of portion's concreting bridge floor beam is reinforced.The concrete thickness that the wall thickness of open steel box beam and Qi Nei build arranges according to actual demands of engineering, and for example, the wall thickness of open steel box beam can be 3-6mm, and the concrete thickness of building in it can be 15-40mm.
Below in conjunction with accompanying drawing, describe in detail according to the reinforcement means of concrete bridge deck beam of the present invention.
One, the preparation before operation
Along the longitudinal direction of bridge floor, on the bridge deck 13 of bridge floor beam 1 both sides, interval arranges through hole, for fastening anchor bolt 5 is passed; Bottom interval at bridge floor beam 1 arranges upwardly extending screw hole, for anchoring dilating screw 8.
Utilize giant that flushing pressure is 20-30Mpa to rinse bridge floor beam 1 and be positioned at the foreign material on the bottom surface of bridge deck 13 of the 1 meter of scope in bridge floor beam both sides, after rinsing well, airing is 24 hours, makes its surperficial bone dry.
Two, the processing of crack and damaged part
For width, be less than the crack 2 of 0.2mm, in the maximum crack width limits of its crack width in reinforced concrete structure, therefore do not need to carry out complicated processing.In the present invention, the crack 2 that is less than 0.2mm for width adopts injection water-proof binding glue to seal processing, stops injection when water-proof binding glue is full of crack and therefrom overflows.The water-proof binding glue that the present invention adopts is 1 by petroleum bitumen, epoxy resin, polyacrylate dispersion, carborundum, silane coupler according to mass ratio: 3.1-3.2: 0.2-0.25: 0.3-0.4: 0.1-0.12 is mixed.Preparation method is: first epoxy resin, polyacrylate dispersion mixed and be heated to 110 ± 2 ℃, formation stirs after then pouring tekite oil asphalt into and adding carborundum, silane coupler.Preferably, water-proof binding glue is 1: 3.1: 0.23 by petroleum bitumen, epoxy resin, polyacrylate dispersion, carborundum, silane coupler according to mass ratio: be mixed at 0.36: 0.12.
For width, be greater than the crack 3 of 0.2mm, utilize cutting tool to cut and form the wide groove of 1cm along crack, the degree of depth of groove equals the depth capacity in crack.After groove has cut, utilize the high pressure air rifle of 40-50Mpa that the foreign material in groove are all removed.Then, brushing interfacial agents in groove, this interfacial agents is 1 by Carboxy emulsion, cement, fine sand and silicon powder according to mass ratio: 0.3-0.4: 0.2-0.25: 0.2-0.22 mixes and forms.Preferably, this interfacial agents is 1: 0.3: 0.2 by Carboxy emulsion, cement, fine sand and silicon powder according to mass ratio: 0.22 mixes and forms.
For damaged part 4, first utilize the high pressure air rifle of 70-80Mpa to impact damaged part, to remove its periphery, there is loosening concrete structure.For the damaged part that exposes reinforcing bar, also will be by exposed reinforcing bar polishing totally to remove rusty stain, then at the rich zinc anti-corrosive primer of the clean rebar surface brushing of polishing.After treating that priming paint is dry, as processed width and be greater than the crack 3 of 0.2mm, in damaged part brushing interfacial agents as above.
On the whole surface of bridge floor beam 1 and be positioned on the bottom surface of bridge deck 13 of the 1 meter of scope in bridge floor beam both sides and evenly smear water-proof binding glue as above.The THICKNESS CONTROL of water-proof binding glue is advisable in 2mm left and right.
Three, the installation of open steel box beam
As shown in Figure 2, the open steel box beam 10 that the present invention adopts comprises the first horizontal flange, the first vertical side walls, base plate, the second vertical side walls and the second horizontal flange, wherein on the first horizontal flange and the second horizontal flange, offer the first hole of passing for fastening anchor bolt 5, on base plate, offer the second hole 11 of passing for dilating screw 8.Referring to Fig. 3, wherein shown the lateral view of the inside of the first vertical side walls and the second vertical side walls.As shown in Figures 2 and 3, be provided with spaced the first T-shaped stiffening rib 91 of many rows in the first vertical side walls and the second vertical side walls, the first T-shaped stiffening rib 91 of adjacent row is crisscross arranged.In addition, in the first vertical side walls and the second vertical side walls, be also interval with pouring hole 12.Referring to Fig. 4, wherein shown the top view of base plate.As shown in Figure 4, base plate is provided with two rows along the second T-shaped stiffening rib 92 longitudinally arranging continuously of open steel box beam, also offers the second hole 11 for dilating screw 8 is passed.
During installation, first with fastening anchor bolt 5, the first horizontal flange of open steel box beam and the second horizontal flange are fastened on bridge deck 13, between the top of fastening anchor bolt and the upper surface of bridge deck, be provided with rubber pad 6, between the soffit of the first horizontal flange and bridge deck and the second horizontal flange and the soffit of bridge deck, be provided with permeable cushion 7.Then, dilating screw 8 is anchored in screw hole through the second hole 11 of offering on the base plate of open steel box beam, between the bottom of dilating screw 8 and the base plate of open steel box beam, is also provided with permeable cushion 7.
Four, build self-compacting concrete
By being arranged on the first vertical side walls of open steel box beam and the pouring hole 12 in the second vertical side walls, in open steel box beam, build self-compacting concrete, select the reason of self-compacting concrete to be that the concrete that is poured into open steel box beam inside is difficult for stirring.Consider the inner T-shaped stiffening rib arranging of open steel box beam, should select the concrete of good fluidity; Consider that again the moisture in the self-compacting concrete being poured in open steel box beam is difficult for being dried, need in concrete, add high efficiency water reducing agent to reduce water as far as possible.As mentioned above, the hole place offering on open steel box beam all selects permeable cushion 7 as buffering, is beneficial to concrete sclerosis.After having built, pouring hole 12 is sealed.
The self-compacting concrete that the present invention adopts is 1 by cement, flyash, haydites of book structure, fine sand, silica flour, sulphoaluminate expander, water reducing agent and water according to mass ratio: 0.3-0.35: 0.2-0.22: 0.15-0.17: 0.08-0.10: 0.05-0.06: 0.05-0.06: 0.28-0.35 mixes and forms.Preferably, the self-compacting concrete that the present invention adopts is 1: 0.32: 0.2 by cement, flyash, haydites of book structure, fine sand, silica flour, sulphoaluminate expander, water reducing agent and water according to mass ratio: 0.17: 0.10: 0.056: mix at 0.06: 0.3 and form.Preferably, the water reducing agent that the present invention adopts is according to mass ratio, to be 1 by fumaric acid, methacrylic acid, ammonium persulfate, acetamide, NaOH: the high efficiency water reducing agent that 0.5-0.7: 0.01-0.15: 0.2-0.26: 0.1-0.3 is mixed.More preferably, the water reducing agent that the present invention adopts is according to mass ratio, to be 1: 0.54: 0.09 by fumaric acid, methacrylic acid, ammonium persulfate, acetamide, NaOH: be mixed at 0.25: 0.16.
Five, maintenance
Maintenance at normal temperatures 45 days, can come into operation.
Employing is according to the reinforcement means of concrete bridge deck beam of the present invention, the crack and the damaged part that not only can rehabilitating concrete bridge floor beam in use occur, and by brushing at bridge floor beam water-proof binding glue around, can realize combination closely between New-old concrete, rely on and be packaged in the supporting capacity that peripheral open steel box beam can greatly improve concrete bridge deck beam simultaneously, realized the object of maintenance and reinforced concrete bridge floor beam.
Although the disclosed embodiment of the present invention as above, the embodiment that described content just adopts for the ease of understanding the present invention, not in order to limit the present invention.Technician in any the technical field of the invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and in details; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (6)
1. a reinforcement means for concrete bridge deck beam, is characterized in that, comprises the following steps:
(1) along the longitudinal direction of bridge floor, on the bridge deck of bridge floor beam both sides, interval arranges through hole, for fastening anchor bolt is passed; Bottom interval at bridge floor beam arranges upwardly extending screw hole, for anchoring dilating screw;
(2) utilize giant that flushing pressure is 20-30Mpa to rinse bridge floor beam and be positioned at the foreign material on the bottom surface of bridge deck of the 1 meter of scope in bridge floor beam both sides, after rinsing well, airing is 24 hours, makes its surperficial bone dry;
(3) crack that is less than 0.2mm for width adopts injection water-proof binding glue seal processings, until water-proof binding glue, is full of when also therefrom overflow in crack and stops injecting; Described water-proof binding glue is 1 by petroleum bitumen, epoxy resin, polyacrylate dispersion, carborundum, silane coupler according to mass ratio: 3.1-3.2: 0.2-0.25: 0.3-0.4: 0.1-0.12 is mixed, preparation method is: first epoxy resin, polyacrylate dispersion mixed and be heated to 110 ± 2 ℃, formation stirs after then pouring tekite oil asphalt into and adding carborundum, silane coupler;
For width, be greater than the crack of 0.2mm, utilize cutting tool to cut and form the wide groove of 1cm along crack, the degree of depth of groove equals the depth capacity in crack; After groove has cut, utilize the high pressure air rifle of 40-50Mpa that the foreign material in groove are all removed; Then, brushing interfacial agents in groove, described interfacial agents is 1 by Carboxy emulsion, cement, fine sand and silicon powder according to mass ratio: 0.3-0.4: 0.2-0.25: 0.2-0.22 mixes and forms;
For damaged part, first utilize the high pressure air rifle of 70-80Mpa to impact damaged part, to remove its periphery, there is loosening concrete structure, exposed reinforcing bar is polished totally and brush rich zinc anti-corrosive primer; After treating that priming paint is dry, in interfacial agents described in damaged part brushing;
(4) on the whole surface of bridge floor beam and be positioned on the bottom surface of bridge deck of the 1 meter of scope in bridge floor beam both sides and evenly smear described water-proof binding glue;
(5) construction opening steel case beam;
Wherein, described open steel box beam comprises the first horizontal flange, the first vertical side walls, base plate, the second vertical side walls and the second horizontal flange, wherein on the first horizontal flange and the second horizontal flange, offer the first hole of passing for described fastening anchor bolt, on base plate, offer the second hole of passing for described dilating screw; In the first vertical side walls and the second vertical side walls, be provided with spaced the first T-shaped stiffening rib of many rows, the first T-shaped stiffening rib of adjacent row is crisscross arranged, and in the first vertical side walls and the second vertical side walls, is also interval with pouring hole; Base plate is provided with the second T-shaped stiffening rib that two rows longitudinally arrange continuously;
During installation, first with fastening anchor bolt, the first horizontal flange of open steel box beam and the second horizontal flange are fastened on bridge deck, between the top of fastening anchor bolt and the upper surface of bridge deck, be provided with rubber pad, between the soffit of the first horizontal flange and bridge deck and the second horizontal flange and the soffit of bridge deck, be provided with permeable cushion; Then, dilating screw is anchored in described screw hole through the second hole of offering on the base plate of open steel box beam, between the bottom of dilating screw and the base plate of open steel box beam, is also provided with permeable cushion;
(6) by being arranged on the first vertical side walls of described open steel box beam and the described pouring hole in the second vertical side walls, in open steel box beam, build self-compacting concrete;
Described self-compacting concrete is 1 by cement, flyash, haydites of book structure, fine sand, silica flour, sulphoaluminate expander, water reducing agent and water according to mass ratio: 0.3-0.35: 0.2-0.22: 0.15-0.17: 0.08-0.10: 0.05-0.06: 0.05-0.06: 0.28-0.35 mixes and forms; Wherein, described water reducing agent is according to mass ratio, to be 1 by fumaric acid, methacrylic acid, ammonium persulfate, acetamide, NaOH: 0.5-0.7: 0.01-0.15: 0.2-0.26: 0.1-0.3 is mixed;
(7) normal temperature maintenance is 45 days.
2. the reinforcement means of concrete bridge deck beam according to claim 1, it is characterized in that, described water-proof binding glue is 1: 3.1: 0.23 by petroleum bitumen, epoxy resin, polyacrylate dispersion, carborundum, silane coupler according to mass ratio: be mixed at 0.36: 0.12.
3. the reinforcement means of concrete bridge deck beam according to claim 1 and 2, is characterized in that, described interfacial agents is 1: 0.3: 0.2 by Carboxy emulsion, cement, fine sand and silicon powder according to mass ratio: 0.22 mixes and forms.
4. according to the reinforcement means of the concrete bridge deck beam described in claim 1 or 2 or 3, it is characterized in that, described self-compacting concrete is 1: 0.32: 0.2 by cement, flyash, haydites of book structure, fine sand, silica flour, sulphoaluminate expander, water reducing agent and water according to mass ratio: 0.17: 0.10: 0.056: mix at 0.06: 0.3 and form.
5. according to the reinforcement means of the concrete bridge deck beam described in claim 1 or 2 or 3, it is characterized in that, described water reducing agent is according to mass ratio, to be 1: 0.54: 0.09 by fumaric acid, methacrylic acid, ammonium persulfate, acetamide, NaOH: be mixed at 0.25: 0.16.
6. according to the reinforcement means of the concrete bridge deck beam described in claim 1 or 2 or 3, it is characterized in that, the wall thickness of described open steel box beam is 3-6mm, and the concrete thickness of building in it is 15-40mm.
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| CN201410405916.5A CN104153302B (en) | 2014-08-15 | 2014-08-15 | The reinforcement means of concrete bridge deck beam |
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| CN201410405916.5A CN104153302B (en) | 2014-08-15 | 2014-08-15 | The reinforcement means of concrete bridge deck beam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714696A (en) * | 2016-03-14 | 2016-06-29 | 岩土科技股份有限公司 | Concrete bridge plate reinforcing method |
| CN105937307A (en) * | 2016-06-07 | 2016-09-14 | 江西赣粤高速公路股份有限公司 | Prestress-steel-wire-rope-bending-shearing-reinforced concrete T beam and reinforcing method thereof |
| CN107143151A (en) * | 2017-06-30 | 2017-09-08 | 唐山钢铁集团有限责任公司 | A kind of architectural engineering Vierendeel girder bracing means |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265696A (en) * | 2009-05-15 | 2010-11-25 | Sho Bond Constr Co Ltd | Structure and method for reinforcing concrete floor slab |
| JP2012026230A (en) * | 2010-07-27 | 2012-02-09 | Kawasaki Heavy Ind Ltd | Railroad bridge composite structure and composition method |
| CN102561213A (en) * | 2012-02-15 | 2012-07-11 | 中南大学 | Steel plate-concrete composite structure reinforcement method of structural negative moment region |
| CN103061271A (en) * | 2012-12-25 | 2013-04-24 | 中铁大桥勘测设计院集团有限公司 | Single plate force-bearing reinforcing method of hollow slab bridge |
| CN103758046A (en) * | 2013-12-31 | 2014-04-30 | 中铁大桥局股份有限公司 | Method for reinforcing steel tube confined concrete arch bridge main beam structure |
-
2014
- 2014-08-15 CN CN201410405916.5A patent/CN104153302B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265696A (en) * | 2009-05-15 | 2010-11-25 | Sho Bond Constr Co Ltd | Structure and method for reinforcing concrete floor slab |
| JP2012026230A (en) * | 2010-07-27 | 2012-02-09 | Kawasaki Heavy Ind Ltd | Railroad bridge composite structure and composition method |
| CN102561213A (en) * | 2012-02-15 | 2012-07-11 | 中南大学 | Steel plate-concrete composite structure reinforcement method of structural negative moment region |
| CN103061271A (en) * | 2012-12-25 | 2013-04-24 | 中铁大桥勘测设计院集团有限公司 | Single plate force-bearing reinforcing method of hollow slab bridge |
| CN103758046A (en) * | 2013-12-31 | 2014-04-30 | 中铁大桥局股份有限公司 | Method for reinforcing steel tube confined concrete arch bridge main beam structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714696A (en) * | 2016-03-14 | 2016-06-29 | 岩土科技股份有限公司 | Concrete bridge plate reinforcing method |
| CN105714696B (en) * | 2016-03-14 | 2017-08-15 | 岩土科技股份有限公司 | Concrete bridge beam slab reinforcement means |
| CN105937307A (en) * | 2016-06-07 | 2016-09-14 | 江西赣粤高速公路股份有限公司 | Prestress-steel-wire-rope-bending-shearing-reinforced concrete T beam and reinforcing method thereof |
| CN107143151A (en) * | 2017-06-30 | 2017-09-08 | 唐山钢铁集团有限责任公司 | A kind of architectural engineering Vierendeel girder bracing means |
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| Publication number | Publication date |
|---|---|
| CN104153302B (en) | 2016-02-24 |
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