CN203007819U - Assembled plate girder bridge hinge joint reinforcing opposite-pulling device - Google Patents
Assembled plate girder bridge hinge joint reinforcing opposite-pulling device Download PDFInfo
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- CN203007819U CN203007819U CN 201320028473 CN201320028473U CN203007819U CN 203007819 U CN203007819 U CN 203007819U CN 201320028473 CN201320028473 CN 201320028473 CN 201320028473 U CN201320028473 U CN 201320028473U CN 203007819 U CN203007819 U CN 203007819U
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- 230000003014 reinforcing effect Effects 0.000 title abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 8
- 108010022579 ATP dependent 26S protease Proteins 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 13
- 230000002787 reinforcement Effects 0.000 abstract description 8
- 238000009435 building construction Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of building construction equipment, a assembled plate girder bridge hinge joint reinforcing and oppositely pulling device is related to, a threaded steel bar is arranged at the central position of a tongue-and-groove hinge joint of a butt joint of a precast plate girder of a plate girder bridge in a vertical serial mode, a top steel plate is fixed at the top of the threaded steel bar, the top end of the threaded steel bar is parallel to the upper plane of the top steel plate, a plug weld is arranged in a gap of the joint of the threaded steel bar and the top steel plate, and an epoxy mortar leveling layer is arranged between the top steel plate and the precast plate girder in a laying mode; the bottom end of the twisted steel bar is provided with a bottom steel plate in a serial way, the bottom steel plate is fixed on the bottom side surface of the precast slab beam through a nut, an epoxy mortar leveling layer is arranged between the bottom steel plate and the precast slab beam in a laying way, and the epoxy mortar leveling layer on the top are laid by the same method and made of the same material; the top steel plate and the bottom steel plate realize a counter-pulling reinforcement function through the rotation of a nut on the twisted steel; the main body of the reinforcing device is simple in structure, convenient to prepare, quick in construction and operation and free of traffic interruption in the reinforcing process.
Description
Technical field:
The utility model belongs to the construction implement technical field, relates to a kind of board-like beam bridge bracing means, and particularly a kind of assembly type plate girder bridge hinge seam is reinforced drawing device, is used for reinforcing and stable support to steel plate class plate girder bridge.
Background technology:
At present, in the construction of highway and little span bridges and culverts, extensively adopted assembly type articulated slab girder construction, connect by cast-in-place tongue and groove concrete pin between each plate-girder is horizontal, make each plate-girder laterally be linked to be integral body, each plate-girder bears the load that acts on bridge floor jointly, has reduced stressed (design load) of single plate-girder, to reach the purpose of economical rationality.yet, As time goes on, due to design, construction, the reasons such as the ever-increasing traffic volume and natural environment, hinge seam ubiquity damage disease in various degree, particularly hinge seam breakoff phenomenon is more general in the simply supported slab beam bridge of medium and small span (in span 16.0m), the hinge seam is in case wreck, the effect of its Transfer of Shear will reduce greatly, the cross direction profiles of bridge, holistic resistant behavior will be seriously influenced, when wheel acts on a certain plate-girder, all wheel load will be born separately by this plate-girder, form disadvantageous " single plate beam is stressed " state, cause the amount of deflection of plate-girder excessive, plate bottom horizontal cracking and bridge deck damage, due to rainwater infiltration and then cause concrete erosion, corrosion of steel bar in plate-girder, the unfavorable situations such as structure durability reduction, thereby the safety to bridge construction consists of serious hidden danger.How to take quick and effective measures are reinforced and repaired the hinge seam, recover the shear resistance of hinge seam, improve the structural performance of existing assembling plate girder bridge, extend the safe operating life of such bridge, become the difficult problem that Current Highway administrative department generally faces.
Key issue and difficult point that existing techniques in realizing stitches to hinge the reinforcing (reparation) that destroys are can not interrupt in the strengthening construction process road traffic or reduce as far as possible to interrupt and the interference traffic; Through retrieval, the reinforcement means that destroys for plate girder bridge hinge seam at present, what relate in published document mainly contains five kinds: the one, and deck paving again, namely cut, clear up original deck paving and ruinate hinge seam concrete, again lay the deck paving steel mesh reinforcement, again pour into a mould deck paving and hinge seam concrete, recover the Shear transfer of hinge seam, visual concrete condition overstriking, encryption steel mesh reinforcement are thickeied the layer of mating formation, and set up hinge seam reinforcing bar; The 2nd, shear reinforcement namely passes hinge seam, the shear reinforcement that is anchored at the bottom of Ban Ding and plate is set at a certain distance, to realize the Shear transfer at hinge seam place; The 3rd, junction steel plate namely sets up at hinge seam end face or bottom surface the junction steel plate that is anchored in hinge seam both sides at a certain distance, realizes Shear transfer; The 4th, chemical grouting, be about to the hinge seam and cause a closed cavity, controlledly reserve and import and export, using high pressure grouting equipment that chemical grouting material (polymer grouting material, epoxy resin etc.) is poured into hinge stitches in the gap, transverse prestresses with the bonding five recovered between the concrete of both sides:, namely join the transverse prestress muscle by adding, lower edge to hinge seam between plate-girder produces horizontal compressive pre-stress, to reduce the concrete horizontal tensile stress of its lower edge, increase simultaneously the frictional resistance between the plate-girder of both sides, increase the ability of hinge seam Transfer of Shear; Existing these methods all need to cut, clear up existing deck paving and ruinate hinge seam concrete, need to be in the situation that suspend traffic wholly or in part and carry out, and the construction period is long, and economy is relatively poor; Relate to again the anchoring of reinforcing bar or steel plate, construction is comparatively complicated; Although some method does not need to suspend traffic fully, must not disturbance hinge seam in the finished product curing time, its time of resting is done suitable selection according to different materials and on-the-spot temperature; Some method will consume more presstressed reinforcing steel and fixture, and the technique of installation, tensioned prestressing bar is comparatively complicated; In addition, apply transverse tension prestress and hinge seam shearing is just played the effect of indirect raising, when the hinge seam extent of damage was larger, its effect was relatively limited.
Summary of the invention:
Goal of the invention of the present utility model is to overcome the defective that prior art exists, seeking to design provides a kind of for the steel plate device of assembly type plate girder bridge hinge seam reinforcing to drawing, the simple structure of this device, easy construction, can be in the situation that uninterrupted traffic, hinge seam to different destructivenesss provides effective reinforcement tools, for solving the bad damage of current ubiquitous Fabricated Beam-Slab Bridge hinge seam, improve the structural entity effect, guarantee bridge safty, increasing the service life provides effective reinforcing technique and reliable bracing means.
To achieve these goals, agent structure of the present utility model comprises prefabricated plate-girder, tongue and groove hinge seam, indented bars, bottom steel plate, nut, epoxy mortar leveling layer, top steel plate and plug welding; The formula of ganging up is shaped with indented bars up and down in the center at the tongue and groove hinge seam place of the joint of the prefabricated plate-girder of plate girder bridge, the top flush system of indented bars fixedly is shaped with the top steel plate, the upper plane parallel of the top of indented bars and top steel plate, annotate the formula of watering in the gap of its both junctions and be shaped with plug welding, between top steel plate and prefabricated plate-girder, pad paving formula is shaped with the epoxy mortar leveling layer, is used for adjusting between the two flat configuration and stability; Place, the bottom formula of ganging up of indented bars is shaped with the bottom steel plate, nut on indented bars is fixed in the bottom side of prefabricated plate-girder to the bottom steel plate by spiral, between bottom steel plate and prefabricated plate-girder, pad paving formula is shaped with the epoxy mortar leveling layer, adopts same procedure pad paving and same material and has identical 26S Proteasome Structure and Function with the epoxy mortar leveling layer at top; Top steel plate and bottom steel plate are realized drawing the reinforcing function by the rotation of the nut on indented bars.
The utility model adopts one or more indented bars to pull-up structure to be fixedly welded on the steel plate of top, the steel plate plane of the axis of indented bars and prefabricated plate-girder and top, bottom is vertical, the top steel plate is placed in the top of prefabricated plate-girder hinge seam, the internal thread broaching reinforcing bar is passed in advance stitch in hinge the vertical hole that bore at the position, pass again the bottom steel plate, and realize anchoring by supporting nut; Arrangement pitch is according to the engineering concrete condition longitudinally along prefabricated plate-girder to drawing device for indented bars diameter, steel plate thickness and size, nut screwing force and reinforcing, and the reinforcing design of cutting with scissors seam by plate girder bridge is definite; In order to prevent that bracing means from long-term use procedure, corrosion occuring, to reinforcing, the whole outer brushwork epoxy resin that adopts of drawing device is protected, or select galvanizing steel and steel plate; The nut screwing force is implemented by torque spanner or stretch-draw jack; During construction, need not all to cut original deck paving and hinge seam concrete, only need to dig out the local bridge floor that can hold the top steel plate at the bridge floor corresponding site and get final product, after nut was tightened, the materials such as employing epoxy mortar were filled and led up bridge floor.
The utility model compared with prior art, its main-body structure is simple, easy to prepare, constructing operation is quick, and reinforcing process need not to suspend traffic, and utilizes the vertical prestressing principle, fully improved the ability of hinge seam transmission vertical shear, consolidation effect to the hinge seam is remarkable, cheap, and reinforcing for the hinge seam of highway assembly type slab bridge beam provides reliable apparatus.
Description of drawings:
Fig. 1 is the utility model reinforcement slab bridge beam cross-sectional configuration principle schematic.
The specific embodiment:
Also be described further by reference to the accompanying drawings below by embodiment.
Embodiment:
The agent structure of the present embodiment comprises prefabricated plate-girder 1, tongue and groove hinge seam 2, indented bars 3, bottom steel plate 4, nut 5, epoxy mortar leveling layer 6, top steel plate 7 and plug welding 8; The formula of ganging up is shaped with indented bars 3 up and down in the center at tongue and groove hinge seam 2 places of the joint of the prefabricated plate-girder 1 of plate girder bridge, the top flush system of indented bars 3 fixedly is shaped with top steel plate 7, annotate the formula of watering in the gap of the junction of the top of indented bars 3 and top steel plate 7 and be shaped with plug welding 8, between top steel plate 7 and prefabricated plate-girder 1, pad paving formula is shaped with epoxy mortar leveling layer 6, is used for adjusting between the two flat configuration and stability; Place, the bottom formula of ganging up of indented bars 3 is shaped with bottom steel plate 4, nut 5 on indented bars 3 is fixed in the bottom side of prefabricated plate-girder 1 to bottom steel plate 4 by spiral, between bottom steel plate 4 and prefabricated plate-girder 1, pad paving formula is shaped with epoxy mortar leveling layer 6, adopts the same procedure pad to spread and has identical 26S Proteasome Structure and Function with the epoxy mortar leveling layer 6 at top; Top steel plate 7 and bottom steel plate 4 are realized drawing the reinforcing function by the rotation of the nut 5 on indented bars 3.
The reinforcing design of the present embodiment is according to the engineering concrete condition, cut with scissors the seam reinforcing design by plate girder bridge, to drawing the steel plate device along plate-girder arrangement pitch, indented bars diameter, steel plate thickness and size, nut screwing force etc. longitudinally, to drawing the steel plate device construction simple, can be on request in factory's batch production or on-the-spot processing, in process, consider simultaneously the safeguard procedures such as brushwork epoxy resin; Its concrete construction technique comprises:
(1), the part cuts deck paving, acquisition can be for the local space of placing the top steel plate;
(2), according to the indented bars diameter, adopt the instrument such as electric hammer to drill through to satisfy in the relevant position of hinge seam and wear the vertical hole that muscle requires;
(3), adopt epoxy mortar to carry out leveling to plate-girder top, bottom steel plate contact surface;
(4), indented bars is passed vertical hole, then pass the bottom of which has holes steel plate, and by the in addition anchoring of supporting nut, control the nut screwing force by torque spanner or stretch-draw jack, to guarantee the keeping desired prestressing force size of design in reinforcing bar;
(5), adopt the materials such as epoxy mortar or bituminous concrete that the bridge floor that the part cuts is filled and led up.
The plug welding that relates in the present embodiment is the common metal welding material, and the structure of plug welding is identical with the gap structure that indented bars and top steel plate joint form; Described epoxy mortar leveling layer has the reinforcing levelling function, has simultaneously the vibration damping effect, and that the epoxy mortar leveling layer is of a size of is long * and wide and top steel plate, bottom steel board size are identical, and its thickness is 5-30mm.
Claims (1)
1. an assembly type plate girder bridge hinge seam is reinforced drawing device, it is characterized in that agent structure comprises prefabricated plate-girder, tongue and groove hinge seam, indented bars, bottom steel plate, nut, epoxy mortar leveling layer, top steel plate and plug welding; The formula of ganging up is shaped with indented bars up and down in the center at the tongue and groove hinge seam place of the joint of the prefabricated plate-girder of plate girder bridge, the top flush system of indented bars fixedly is shaped with the top steel plate, the upper plane parallel of the top of indented bars and top steel plate, annotate the formula of watering in the gap of its both junctions and be shaped with plug welding, between top steel plate and prefabricated plate-girder, pad paving formula is shaped with the epoxy mortar leveling layer; Place, the bottom formula of ganging up of indented bars is shaped with the bottom steel plate, nut on indented bars is fixed in the bottom side of prefabricated plate-girder to the bottom steel plate by spiral, between bottom steel plate and prefabricated plate-girder, pad paving formula is shaped with the epoxy mortar leveling layer, adopts same procedure pad paving and same material and has identical 26S Proteasome Structure and Function with the epoxy mortar leveling layer at top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028473 CN203007819U (en) | 2013-01-20 | 2013-01-20 | Assembled plate girder bridge hinge joint reinforcing opposite-pulling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028473 CN203007819U (en) | 2013-01-20 | 2013-01-20 | Assembled plate girder bridge hinge joint reinforcing opposite-pulling device |
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| Publication Number | Publication Date |
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| CN203007819U true CN203007819U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320028473 Expired - Fee Related CN203007819U (en) | 2013-01-20 | 2013-01-20 | Assembled plate girder bridge hinge joint reinforcing opposite-pulling device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046478A (en) * | 2013-01-20 | 2013-04-17 | 青岛理工大学 | Assembled plate girder bridge hinge joint reinforcing opposite-pulling device |
| 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 |
| CN109594484A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | Bridge strengthening device, ruggedized construction, reinforced construction method and reinforcement and repair method |
| CN112227175A (en) * | 2020-09-30 | 2021-01-15 | 山东交通学院 | Assembly type bridge structure for improving fulcrum shear-resisting bearing capacity and construction method |
-
2013
- 2013-01-20 CN CN 201320028473 patent/CN203007819U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046478A (en) * | 2013-01-20 | 2013-04-17 | 青岛理工大学 | Assembled plate girder bridge hinge joint reinforcing opposite-pulling device |
| CN103046478B (en) * | 2013-01-20 | 2015-04-08 | 青岛理工大学 | Assembled plate girder bridge hinge joint reinforcing opposite-pulling device |
| 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 |
| CN106223212B (en) * | 2016-08-11 | 2017-12-15 | 宁波市交通规划设计研究院有限公司 | A kind of reinforcement means by fired damage bridge |
| CN109594484A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | Bridge strengthening device, ruggedized construction, reinforced construction method and reinforcement and repair method |
| CN112227175A (en) * | 2020-09-30 | 2021-01-15 | 山东交通学院 | Assembly type bridge structure for improving fulcrum shear-resisting bearing capacity and construction method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140120 |