CN109989359A - A kind of hollow slab girder reinforcement means and structure - Google Patents
A kind of hollow slab girder reinforcement means and structure Download PDFInfo
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- CN109989359A CN109989359A CN201910177038.9A CN201910177038A CN109989359A CN 109989359 A CN109989359 A CN 109989359A CN 201910177038 A CN201910177038 A CN 201910177038A CN 109989359 A CN109989359 A CN 109989359A
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- hollow slab
- reinforcing bar
- unit
- slab girder
- hole
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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
Abstract
The invention discloses a kind of hollow slab girder reinforcement means, including, remove the bridge deck pavement on target area；Through-hole is drilled through vertically by pre-determined distance on the target area；It is inserted into the reinforcing bar of preset diameters in the through-hole and is anchored by steel plate；Tensioning is carried out to the reinforcing bar；To being filled processing between reinforcing bar and through-hole, and the bridge deck pavement of target area is repaired.Hollow slab girder reinforcement means provided by the invention can shorten the construction period while being reinforced hollow slab girder to enhance shear-carrying capacity, reduce the influence to traffic, and reduce the pollution to environment, and saved great amount of cost.The present invention also provides a kind of hollow slab girders to reinforce the structure that hollow slab girder is reinforced, and has same technical effect.
Description
Technical field
The present invention relates to bridge maintenance technical field, in particular to a kind of hollow slab girder reinforcement means and structure.
Background technique
Freely-supported Hollow Slab Beam Bridge is a kind of most widely used bridge structure form, uses prefabricated hinged freely-supported cored slab
Form girder construction.
With the increase of the volume of traffic, the raising of load level, part freely-supported cored slab shear resistant capacity is had been unable to meet
The needs of actual traffic at present.It is in particular in that freely-supported hollow slab girder cracks close to the side of end of the bridge one end, and causes
Hollow slab girder shear-carrying capacity dies down, and seriously affects the structure safety of bridge.
In the prior art, when above situation occurs in freely-supported hollow slab girder, superstructure is taken to remove the transformation rebuild more
Scheme.But superstructure dismounting big, long in time limit, to road traffic the influence of reconstruction model construction investment is big, and generate
Engineering waste material is more, processing difficulty is big, is unfavorable for energy conservation and environmental protection.
Therefore, it how while being reinforced hollow slab girder to enhance shear-carrying capacity, shortens the construction period, reduces to friendship
Logical influence, it has also become those skilled in the art's urgent problem to be solved.
Summary of the invention, can in view of this, the first purpose of this invention is to provide a kind of hollow slab girder reinforcement means
It while being reinforced hollow slab girder to enhance shear-carrying capacity, shortens the construction period, reduces the influence to traffic, while energy conservation
Environmental protection.The present invention also provides the structures that a kind of hollow slab girder is reinforced, and have same technical effect.
The technical solution that the present invention solves technical problem is as follows: a kind of hollow slab girder reinforcement means includes the following steps, goes
Except the bridge deck pavement on target area；Through-hole is drilled through vertically by pre-determined distance on the target area；In the through-hole
It is inserted into the reinforcing bar of preset diameters and is anchored by steel plate；Tensioning is carried out to the reinforcing bar；
To being filled processing between reinforcing bar and through-hole, and the bridge deck pavement of target area is repaired.
Preferably, the stress for carrying out tensioning to the reinforcing bar is the 30% to 70% of tensile strength.Preferably, the stress
It is the 40% to 45% of tensile strength.
Preferably, the pre-determined distance and the preset diameters are determined using following formula:
In formula, VcsThe shear resistance capacity design value in section, unit N, f are calculated for freely-supported hollow slab girderyvFor the anti-of stirrup
Tensile strength design value, unit MPa, AsvFor the gross section area for configuring stirrup each in same section, unit mm2, s
For along the stirrup spacing in component direction, unit mm, h0For the effective height in section, unit mm, fylvIt is strong for the tension of reinforcing bar
Design value is spent, unit MPa, d are the diameter of reinforcing bar, unit mm2, slCoring spacing, unit mm are stitched for hinge.
Preferably, the reinforcing bar is anchored specifically, the both ends of all reinforcing bars on the target area lead to respectively
Nut is crossed to be anchored on same steel plate.Preferably, to processing is filled between reinforcing bar and through-hole, specifically, in through-hole
Between reinforcing bar, and between upper and lower steel plate and hollow slab girder, reperfusion structure glue.Preferably, to the reinforcing bar carry out tensioning it
Before, it further include presstressed reinforcing steel being set in hollow slab girder bottom, the presstressed reinforcing steel is stitched perpendicular to hinge；In Hollow Slab Beam Bridge two sides
Tensioning guide frame is set, the groove for accommodating the presstressed reinforcing steel is set on the tensioning guide frame；
The both ends of presstressed reinforcing steel are anchored on the anticollision barrier of Hollow Slab Beam Bridge two sides and carry out tensioning.Preferably, in advance
It is acute angle that stress rib, which leads rearward portion with the angle for leading forward part formation by tensioning guide frame,.A kind of hollow slab girder
The structure of reinforcing, including, the through-hole on target area is set by pre-determined distance；It is arranged in the through hole by preset diameters
Reinforcing bar, the reinforcing bar have prestressing force；It is set in the steel plate at the reinforcing bar both ends；It is set in the nut at the reinforcing bar both ends, institute
Nut is stated for making the steel plate be close to hollow slab girder.Preferably, the pre-determined distance determines as the following formula with the preset diameters,
In formula, VcsThe shear resistance capacity design value in section, unit N, f are calculated for freely-supported hollow slab girderyvFor the anti-of stirrup
Tensile strength design value, unit MPa, AsvFor the gross section area for configuring stirrup each in same section, unit mm2, s
For along the stirrup spacing in component direction, unit mm, h0For the effective height in section, unit mm, fylvFor the anti-of spiral
Tensile strength design value, unit MPa, d are the diameter of spiral, unit mm2, slCoring spacing, unit mm are stitched for hinge.
Preferably, further include,
Setting is stitched in hollow slab girder bottom presstressed reinforcing steel, the presstressed reinforcing steel perpendicular to hinge；It is arranged in Hollow Slab Beam Bridge two
The tensioning guide frame of side is provided with the groove for accommodating the presstressed reinforcing steel on the tensioning guide frame；It is described pre-
The both ends of stress rib are anchored on the anticollision barrier of Hollow Slab Beam Bridge two sides.Preferably, the presstressed reinforcing steel is oriented to by tensioning
Part after structure directing with to lead the angle that forward part is formed be acute angle.Hollow slab girder reinforcing side provided by the present invention
Method first removes the bridge deck pavement on target area；Then through-hole is drilled through vertically by pre-determined distance on target area；Then exist
It is inserted into the reinforcing bar of preset diameters in the through-hole and is anchored by steel plate；Tensioning is carried out to the reinforcing bar again；Finally to steel
It is filled processing between muscle and through-hole, and the bridge deck pavement of target area is repaired.Compared with prior art, first
First reinforcing bar is anchored using steel plate, enables to each hollow panel integral, improves shear-carrying capacity；Next only needs to go
Except reinforcement can be completed in the pave-load layer of target area, i.e., only needing that the local flow improvement of bridge can be reinforced, project amount is small,
Short time limit is small to traffic impact, and waste material is few, energy conservation and environmental protection.
Detailed description of the invention in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be right
Drawings that need to be used in the embodiment or the prior art description is briefly described, it should be apparent that, be described below in it is attached
Figure is only some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of freely-supported Hollow Slab Beam Bridge；
Fig. 2 is the flow diagram of hollow slab girder reinforcement means provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram for the structure that hollow slab girder provided in an embodiment of the present invention is reinforced；
Fig. 4 is the top view for the structure that hollow slab girder provided in an embodiment of the present invention is reinforced；
Fig. 5 is the side view for the structure that hollow slab girder provided in an embodiment of the present invention is reinforced；
Fig. 6 is the A-A view of Fig. 4；
Fig. 7 is the B-B view of Fig. 4；
It includes that presstressed reinforcing steel passes through the structure that the hollow slab girder of tensioning guide frame is reinforced that Fig. 8, which is in the embodiment of the present invention,
Schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please as shown in FIG. 1, FIG. 1 is the structural schematic diagrams of freely-supported Hollow Slab Beam Bridge.Existing freely-supported Hollow Slab Beam Bridge is main
Including end of the bridge 01, the pave-load layer 03 on 02 surface of hollow slab girder is arranged in the hollow slab girder 02 being erected on end of the bridge 01, and adjacent two is empty
Setting hinge seam 04 between core beam 02.Certainly it can also include bridge pier and other accessory structures, be not shown in the figure.Wherein, hollow
Plate-girder 02 is interior in prefabrication process to be provided with stirrup.
Inventors have found that with the increase of the volume of traffic, side of the existing freely-supported hollow slab girder 02 by one end of end of the bridge 01
It will appear crackle A, die down so as to cause hollow slab girder shear-carrying capacity, seriously affect the structure safety of bridge.
It please be as shown in Fig. 2, in order to solve the problems in the prior art, the embodiment of the present invention provides a kind of hollow slab girder reinforcing
Method includes the following steps,
S1. the bridge deck pavement on target area is removed；S2. through-hole is drilled through vertically by pre-determined distance on target area；
S3. it is inserted into the reinforcing bar of preset diameters in through-hole and is anchored by steel plate；S4. tensioning is carried out to reinforcing bar；S5. to reinforcing bar with
It is filled processing between through-hole, and the bridge deck pavement of target area is repaired.
And in the prior art, when the situation of shear-carrying capacity deficiency occurs in freely-supported hollow slab girder, take superstructure more
Remove the modification scheme rebuild.But superstructure removes big, long in time limit, to road traffic the shadow of reconstruction model construction investment
It rings greatly, and the engineering waste material generated is more, processing difficulty is big, is unfavorable for energy conservation and environmental protection.
Hollow slab girder reinforcement means provided in an embodiment of the present invention first removes the bridge deck pavement on target area；Then
Through-hole is drilled through vertically by pre-determined distance on target area；Then in through-hole be inserted into preset diameters reinforcing bar and by steel plate into
Row anchoring；Tensioning is carried out to reinforcing bar again；Finally to being filled processing between reinforcing bar and through-hole, and the bridge floor of target area is spread
Dress layer is repaired.
Obviously, compared with prior art, reinforcing bar is anchored using steel plate first, enables to each hollow slab girder shape
It is integral, improve shear-carrying capacity；Secondly, it is only necessary to which reinforcement can be completed in the pave-load layer at removal hinge seam, i.e., only needs
The local flow improvement of bridge can be reinforced, rebuild compared with transformation with removing in the prior art, project amount is small, has saved a large amount of
Cost；Short time limit is small to traffic impact；And waste material is few, energy conservation and environmental protection.
Wherein, in step S1, the bridge deck pavement on target area is removed.Target area in the step refers to cored slab
Beam close to the side of end of the bridge cracking and caused by the insufficient region of shear resistance.
It when implementing this method, needs to remove the bridge deck pavement of target area, exposes hollow slab girder, the present invention is implemented
The mode removed in example is that can also be cut in such a way that machinery is with hand fit certainly by manually cutting.
After step S1 is completed, step S2 is carried out, drills through through-hole vertically by pre-determined distance on target area.The step
In vertical drilling hole refer to that be formed by through-hole vertical with the upper surface of hollow slab girder.Through-hole herein refers to, the one of the through-hole
End is in the upper surface of hollow slab girder, and the other end handles the bottom surface of hollow slab girder.The setting of through-hole can be convenient for subsequent reinforcing bar
Insertion.
In the step, the position of drilling be can be on hollow slab girder, be also possible to hinge seam position.In order to guarantee to reinforce sky
To hollow slab girder minimal damage during core plate-girder, the position to drill in the embodiment of the present invention is chosen at hinge seam position.This
Drilling through for through-hole is completed using corning machine in step, is also possible to corning machine and other drilling machines is cooperated to complete, can also be artificial brill
And/or corning machine and/other drill through equipment completion.
When through-hole is drilled through completion, step S3 is carried out, the reinforcing bar of preset diameters is inserted into through-hole and is carried out by steel plate
Anchoring.In the step, reinforcing bar uses screw-thread steel, and is anchored by nut, steel plate.Specifically, reinforcing bar is first inserted into through-hole
In, upper steel plate is then covered respectively at the both ends of reinforcing bar, then nut is arranged on reinforcing bar, and under the action of nut, avoid subsequent
Steel plate falls off from reinforcing bar during carrying out tensioning to reinforcing bar, and also to which subsequent can after carrying out tensioning to reinforcing bar
Steel plate is locked in time.It is of course also possible to after first placing steel plate, then by reinforcing bar insertion through-hole, specifically no longer go to live in the household of one's in-laws on getting married herein
It states.
Wherein, nut is used as anchoring piece herein, and can also be changed to other can play the anchoring piece of anchorage effect.
Wherein, pre-determined distance and preset diameters are determined using following formula:
In formula, VcsThe shear resistance capacity design value in section, unit N, f are calculated for freely-supported hollow slab girderyvFor the anti-of stirrup
Tensile strength design value, unit MPa, AsvFor the gross section area for configuring stirrup each in same section, unit mm2, s
For along the stirrup spacing in component direction, unit mm, h0For the effective height in section, unit mm, fylvFor the anti-of spiral
Tensile strength design value, unit MPa, d are the diameter of spiral, unit mm2, slCoring spacing, unit mm are stitched for hinge.
In the embodiment of the present invention,
Present example, when pre-determined distance is 500mm, and preset diameters are 32mm, resultant effect is optimal.
As a preferred embodiment, being anchored to reinforcing bar in the embodiment of the present invention specifically, on target area
The both ends of all reinforcing bars anchored on same steel plate by nut.That is, one end of all reinforcing bars is on same steel plate
It is anchored, the other end of all reinforcing bars is anchored on another block of steel plate, and one of steel plate handles the upper of hollow slab girder
The lower section of hollow slab girder is arranged in side, another block of steel plate.It so, it is possible so that stretching force provided by all reinforcing bars acts on
On the steel plate, adjacent two hollow slab girder forms an entirety under the action of steel plate, is more conducive to improving hollow slab girder shearing resistance
Bearing capacity.
After completing step S3, step S4 is carried out, tensioning is carried out to reinforcing bar.The stress of reinforced bar stretching is tensile strength
30% to 70%.
Wherein, it should be noted that tension stress herein is the power of application when carrying out tensioning to reinforcing bar, and tensile strength is
The design tensile strength of reinforcing bar.Wherein, the embodiment of the present invention carries out tensioning using the progress of punching jack.After carrying out tensioning,
Nut is tightened again.
As a preference, tension stress is preferably the 40% to 45% of tensile strength in the embodiment of the present invention.When to steel
After the completion of muscle carries out tensioning, step S5 is carried out, processing is filled between reinforcing bar and through-hole, and to the deck paving of target area
Layer is repaired.Wherein, to being filled processing between reinforcing bar and through-hole specifically, between through-hole and screw-thread steel, and it is upper and lower
Between steel plate and hollow slab girder, reperfusion structure glue so that between through-hole and screw-thread steel, between upper steel plate and hollow slab girder, lower steel plate
It is bonded between hollow slab girder integral.Wherein, structure glue refers to that (compressive strength > 65MPa, steel-steel just draw bonding strong to intensity height
Degree > 30MPa, shearing strength > 18MPa), larger load can be born, and ageing-resistant, endurance, corrosion-resistant, in life expectancy
Performance is stablized, and the adhesive that the structural member suitable for bearing strength is bonded is divided into for its function and group it is known in the art that herein not
It repeats again.
As a preferred embodiment, can also include, in hollow slab girder bottom before carrying out tensioning to reinforcing bar
Presstressed reinforcing steel is set, and presstressed reinforcing steel is stitched perpendicular to hinge；Tensioning guide frame is set in Hollow Slab Beam Bridge two sides, is oriented to and ties in tensioning
Groove for accommodating presstressed reinforcing steel is set on structure；The both ends of presstressed reinforcing steel are anchored to the anticollision barrier of Hollow Slab Beam Bridge two sides
It goes up and carries out tensioning.
In this way, tensioning guide frame is respectively set in the outer wall in the side plate of Hollow Slab Beam Bridge two sides, so that being applied to hollow
The prestressing force of plate-girder can successively be transmitted to the cored slab in the middle position for being located at the Hollow Slab Beam Bridge from the side cored slab of two sides,
To achieve the effect that fasten Hollow Slab Beam Bridge, simultaneously as there is interaction, matching step S2 to step between cored slab
Reinforcing bar, the steel plate of S4 setting, are capable of the phenomenon that eliminating single slab bearing of high degree, improve reinforcing efficiency, consolidation effect
More preferably.
As a preferred embodiment, presstressed reinforcing steel is after tensioning guide frame guiding in the embodiment of the present invention
Part with to lead the angle that forward part is formed be acute angle.
Above-mentioned steps, so that the prestressing force of presstressed reinforcing steel generates component transversely, so that prestressing force is uniformly by two sides
Side cored slab to be located at the Hollow Slab Beam Bridge middle position cored slab transmitting so that transversely adjacent cored slab it
Between generate the active force of interaction, and the hinge seam between cored slab is made to bear certain precompression, improves the shearing resistance of hinge seam
Bearing capacity, to realize to the good consolidation effect of Hollow Slab Beam Bridge.
Please as shown in Fig. 3 to Fig. 7, the embodiment of the present invention also provides a kind of structure that hollow slab girder is reinforced, including, by default
The through-hole on the target area of hinge seam 11 is arranged in distance；The reinforcing bar 30 in through-hole 20 is set by preset diameters, reinforcing bar has
Prestressing force；It is set in the steel plate 40 at reinforcing bar both ends；It is set in the nut 50 at reinforcing bar both ends, nut is for making steel plate be close to cored slab
Beam 10.
Wherein, pre-determined distance determines as the following formula with preset diameters,
In formula, VcsThe shear resistance capacity design value in section, unit N, f are calculated for freely-supported hollow slab girderyvFor the anti-of stirrup
Tensile strength design value, unit MPa, AsvFor the gross section area for configuring stirrup each in same section, unit mm2, s
For along the stirrup spacing in component direction, unit mm, h0For the effective height in section, unit mm, fylvFor the anti-of spiral
Tensile strength design value, unit MPa, d are the diameter of spiral, unit mm2, slCoring spacing, unit mm are stitched for hinge.
Please be as shown in figure 8, the structure that hollow slab girder provided in an embodiment of the present invention is reinforced, further include, setting is in cored slab
Beam bottom portion presstressed reinforcing steel 61, presstressed reinforcing steel 61 are stitched perpendicular to hinge；The tensioning guide frame 62 of Hollow Slab Beam Bridge two sides is set,
The groove 63 for accommodating presstressed reinforcing steel is provided on tensioning guide frame 62；The both ends of presstressed reinforcing steel are anchored at hollow slab girder
On the anticollision barrier (not shown) of bridge two sides.
As a preference, presstressed reinforcing steel leads rearward portion by tensioning guide frame and leads what forward part was formed
Angle α is acute angle.
Since the structure division is corresponding with method, its beneficial effect is corresponding with method, herein not
It repeats again.It is right
The above description of the disclosed embodiments, enables those skilled in the art to implement or use the present invention.It is right
A variety of modifications of these embodiments will be readily apparent to those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest scope.
Claims (8)
1. a kind of hollow slab girder reinforcement means, which is characterized in that include the following steps,
Remove the bridge deck pavement on target area；
Through-hole is drilled through vertically by pre-determined distance on the target area；
It is inserted into the reinforcing bar of preset diameters in the through-hole and is anchored by steel plate；
Tensioning is carried out to the reinforcing bar；
To being filled processing between reinforcing bar and through-hole, and the bridge deck pavement of target area is repaired.
2. hollow slab girder reinforcement means according to claim 1, which is characterized in that the pre-determined distance is preset directly with described
Diameter is determined using following formula:
In formula, VcsThe shear resistance capacity design value in section, unit N, f are calculated for freely-supported hollow slab girderyvIt is strong for the tension of stirrup
Spend design value, unit MPa, AsvFor the gross section area for configuring stirrup each in same section, unit mm2, s is edge
The stirrup spacing in component direction, unit mm, h0For the effective height in section, unit mm, fylvIt is set for the tensile strength of reinforcing bar
Evaluation, unit MPa, d are the diameter of reinforcing bar, unit mm2, slCoring spacing, unit mm are stitched for hinge.
3. hollow slab girder reinforcement means according to claim 1, which is characterized in that anchor to the reinforcing bar specific
For,
The both ends of all reinforcing bars on the target area pass through nut respectively and are anchored on same steel plate.
4. hollow slab girder reinforcement means according to claim 3, which is characterized in that be filled between reinforcing bar and through-hole
Processing, specifically,
Between through-hole and reinforcing bar, and between upper and lower steel plate and hollow slab girder, reperfusion structure glue.
5. hollow slab girder reinforcement means according to claim 1, which is characterized in that
The stress for carrying out tensioning to the reinforcing bar is the 30% to 70% of tensile strength.
6. hollow slab girder reinforcement means according to claim 5, which is characterized in that the stress is the 40% of tensile strength
To 45%.
7. the structure that a kind of hollow slab girder is reinforced, which is characterized in that including,
Through-hole on target area is set by pre-determined distance；
By preset diameters reinforcing bar arranged in the through hole, the reinforcing bar has prestressing force；
It is set in the steel plate at the reinforcing bar both ends；
It is set in the nut at the reinforcing bar both ends, the nut is for making the steel plate be close to hollow slab girder.
8. the structure that hollow slab girder according to claim 7 is reinforced, which is characterized in that the pre-determined distance is preset with described
Diameter determines as the following formula,
In formula, VcsThe shear resistance capacity design value in section, unit N, f are calculated for freely-supported hollow slab girderyvIt is strong for the tension of stirrup
Spend design value, unit MPa, AsvFor the gross section area for configuring stirrup each in same section, unit mm2, s is edge
The stirrup spacing in component direction, unit mm, h0For the effective height in section, unit mm, fylvIt is strong for the tension of spiral
Design value is spent, unit MPa, d are the diameter of spiral, unit mm2, slCoring spacing, unit mm are stitched for hinge.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197335A (en) * | 2021-12-28 | 2022-03-18 | 中交鹭建有限公司 | External prestress reinforcing structure of hollow slab beam bridge and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046478A (en) * | 2013-01-20 | 2013-04-17 | 青岛理工大学 | Strengthening and pulling device of hinge gap of compositional plate girder bridge |
| 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 |
| CN103898841A (en) * | 2014-04-23 | 2014-07-02 | 魏志新 | Hollow slab bridge reinforcing method |
| CN105421235A (en) * | 2015-10-22 | 2016-03-23 | 王壹帆 | Lateral prestress application method for paving reinforcing bar concrete on bridge floor of assembled type bridge |
| CN106223212A (en) * | 2016-08-11 | 2016-12-14 | 宁波市交通规划设计研究院有限公司 | A kind of reinforcement means suffering fired damage bridge |
| CN109356043A (en) * | 2018-11-21 | 2019-02-19 | 南京铁道职业技术学院 | Existing hollow slab girder single slab bearing reinforcing construction and reinforcement means |
-
2019
- 2019-03-08 CN CN201910177038.9A patent/CN109989359A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103046478A (en) * | 2013-01-20 | 2013-04-17 | 青岛理工大学 | Strengthening and pulling device of hinge gap of compositional plate girder bridge |
| CN103898841A (en) * | 2014-04-23 | 2014-07-02 | 魏志新 | Hollow slab bridge reinforcing method |
| CN105421235A (en) * | 2015-10-22 | 2016-03-23 | 王壹帆 | Lateral prestress application method for paving reinforcing bar concrete on bridge floor of assembled type bridge |
| CN106223212A (en) * | 2016-08-11 | 2016-12-14 | 宁波市交通规划设计研究院有限公司 | A kind of reinforcement means suffering fired damage bridge |
| CN109356043A (en) * | 2018-11-21 | 2019-02-19 | 南京铁道职业技术学院 | Existing hollow slab girder single slab bearing reinforcing construction and reinforcement means |
Non-Patent Citations (4)
| Title |
|---|
| 周丰峻: "《中国工程院第三次地下工程与基础设施公共安全学术研讨会论文集》", 30 September 2007, 黄河水利出版社 * |
| 王若林等: "《混凝土悬臂公路桥病害诊治》", 30 June 2014, 华中科技大学出版社 * |
| 祝明桥、黄海林: "《混凝土结构设计原理》", 31 October 2015, 中南大学出版社 * |
| 陈惠玲: "《高效预应力结构设计施工实例应用手册》", 30 June 1998, 中国建筑工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197335A (en) * | 2021-12-28 | 2022-03-18 | 中交鹭建有限公司 | External prestress reinforcing structure of hollow slab beam bridge and construction method |
| CN114197335B (en) * | 2021-12-28 | 2024-05-03 | 中交鹭建有限公司 | Construction method of external prestress reinforcing structure of hollow slab beam bridge |
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