CN209277115U - A kind of arc door support prestressed reinforcement structure - Google Patents
A kind of arc door support prestressed reinforcement structure Download PDFInfo
- Publication number
- CN209277115U CN209277115U CN201821683386.0U CN201821683386U CN209277115U CN 209277115 U CN209277115 U CN 209277115U CN 201821683386 U CN201821683386 U CN 201821683386U CN 209277115 U CN209277115 U CN 209277115U
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- Prior art keywords
- door support
- arc door
- former
- gate pier
- anchor
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000004567 concrete Substances 0.000 claims description 30
- 238000005553 drilling Methods 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 8
- 239000002002 slurry Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 abstract description 12
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The utility model discloses a kind of arc door support prestressed reinforcement structure, the former arc door support (1) is fixed on the gate pier (2), former arc door support (1) both ends are extended to have outward widens arc door support (3), the former arc door support (1) and the adjacent side of arc door support (3) of widening are provided with encased steel plate (4), and described widening at the top and bottom of arc door support (3) is provided with encased steel plate (4)；Along former arc door support (1) thrust direction, in described widening, arc door support (3) is monosymmetric is disposed with prestress wire (6), it overcomes the disadvantage of gate pier part tensile region fan muscle deficiency in the prior art, with not needing to cut former arc door support, lesser advantage is destroyed to original structure.
Description
Technical field
The utility model relates to arrive the gates of segmental shape support reinforcement technique field of hydraulic engineering sluice, spillway, flood discharging tunnel,
It is more specifically a kind of arc door support prestressed reinforcement structure.
Background technique
Gates of segmental shape has arc-shaped water blocking gate flap, and when open-close sluice gate, gate is around the branch being fixed on arc door support
Twist rotation.Gates of segmental shape is laborsaving with opening and closing, operating is reliable, aerial drainage condition is good, and being able to satisfy various types sluicing duct need to
The advantages of wanting, it is widely applied in the discharge structures such as the sluice, spillway, flood discharging tunnel of hydraulic engineering.
Since former design standard is relatively low, due to concrete aging etc., when checking by current specifications, is frequently present of gate pier part
The problem of tensile region fan muscle is insufficient, arc door support Crack Control is unsatisfactory for code requirement, gates of segmental shape support is by gate institute
The water pressure of receiving is conducted to a key component of gate pier, its reliability is directly related to whether discharge structure can pacify
Row for the national games, and then influence the flood control safety of reservoir, sluice.
For the problem of gate pier part tensile region fan muscle deficiency, it is newly-increased that conventional reinforcing mode cuts pier concrete
Sector ribs, paste steel plate or the modes such as carbon cloth reinforced etc..
The mode that pier concrete increases fan muscle newly is cut, i.e., first removes gate pier hinged-support, cut support concrete, cut
Former fan reinforced concrete protective layer exposes gate pier surface layer muscle and fan muscle, and fan muscle area need to be increased by then supplying, finally again
Pour the concrete cover cut and concrete bearing.Difficulty of construction is big for the method, cost is high, long in time limit, to original structure
There is certain damage, pier concrete, arc door support concrete and the original structure bond quality of newly-increased reinforcing bar and after-pouring are difficult to protect
Card.
Pasting steel plate or carbon cloth reinforced mode, i.e. fan muscle insufficient section uses steel plate or carbon cloth reinforcement,
Without cutting pier concrete protective layer when reinforcement.The deadly defect of the program is high polymer binder when more than 60 DEG C of temperature
It will soften, and influence the combination effect of steel plate or carbon cloth and gate pier, in addition the steel plate or carbon fiber of Humen support and gate pier reinforcement
How coaction is also difficult to calculate Wei Bu.
Aiming at the problem that arc door support Crack Control is unsatisfactory for code requirement, " design of hydraulic concrete structures specification "
(SL191-2008) it is proposed in " when being unsatisfactory for above formula requirement, Ying Jia great arc door support width or raising strength grade of concrete ",
Common mode is to widen arc door support in reinforcing engineering, and advantage is that the intuitive arc door support Crack Control that solves is unsatisfactory for advising
The problem of model requires, strengthening construction is easier, and consolidation effect is guaranteed, and disadvantage is when arc door support Crack Control is wanted with specification
It asks gap larger, it is wider to calculate to need arc door support, and reinforcing engineering arc door support position has been fixed, and often apart from lock top
It is relatively close, it limits arc door support and reinforces width, meanwhile, arc door support width is wide to hinder lock chamber overcurrent.
Patent in the prior art: utility model title: gate pier bracket prestressing force is lossless reinforced structure.Application number:
200620124705.5 as follows relative to this patent disadvantage:
1, the patent prestressing force reinforced structure stretching end is supported on pressure-bearing girder steel by intermediate plate anchor head, and disadvantage is pressure-bearing
It is cantilever design when girder steel stress, girder steel stress condition is bad, easily deforms and overturning.
2, the patent Central Plains arc door support is horizontally disposed, and pressure-bearing girder steel direction is perpendicular to arc door thrust direction, disadvantage
Arc door support can not directly branch carry on arc door support, and casting concrete is needed to provide bearing surface for pressure-bearing girder steel.And in the patent
This content is not referred to, does not refer to bond between fresh and hardened concretes measure yet.In addition, the patent is not suitable for the arc door branch that this patent is related to
Holder structure, i.e. arc door seat structure are parallel to arc door thrust direction.
3, to prevent pressure-bearing girder steel in stretching process from toppling, anchoring spiral shell is installed on the gate pier in pressure-bearing girder steel downstream side
Bolt, anchor bolt are welded and fixed with pressure-bearing girder steel.It is cantilever design when disadvantage is pressure-bearing girder steel stress, it need to be with arc door branch
Seat, gate pier need to be connected with anchor bolt respectively, and structural integrity is bad, anchor to pressure-bearing girder steel and require height.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming of above-mentioned background technology, and propose a kind of arc door support and answer in advance
Power ruggedized construction.
The purpose of this utility model is that implementing by following technical solution: a kind of arc door support prestressed reinforcement knot
Structure, it includes former arc door support, gate pier, widens arc door support, is encased steel plate, backfill expansion cement slurry, prestress wire, flat
Anchor anchor head, steel sleeve, anchor head diverter, drilling and extruding anchor；
The former arc door support is fixed on the gate pier, and the former arc door support both ends extend outward to be set
It is equipped with and widens arc door support,
The former arc door support and the adjacent side of arc door support of widening are provided with encased steel plate, and described
Widen arc door holder top and bottom is provided with encased steel plate；
Prestress steel has been arranged symmetrically in the arc door support two sides of widening along the former arc door support thrust direction
Twisted wire,
The prestress wire upstream anchored end is anchored in the concrete in gate pier using the extruding, downstream
Stretching end is fixed on described widen in the concrete of arc door support using the flat anchor anchor head.
In the above-mentioned technical solutions: cutting prestress wire described in the gate pier outer surface and embedment in advance, bury
The outer surface for entering the gate pier in the prestress wire is backfilled with backfill expansion cement slurry.
In the above-mentioned technical solutions: described widening in arc door support is provided with steel sleeve and anchor head diverter in advance,
And splice with the flat anchor anchor head of stretching end setting.
In the above-mentioned technical solutions: the gate pier is provided with drilling in advance, the hole depth of the drilling is 1 meter, and
The direction of the drilling is 40 degree with the angle between the gate pier.
The utility model has the advantages that 1, does not need to cut former arc door support, destroys to original structure smaller.2, it answers in advance
Power steel strand wires arrange that force way is clear along arc door thrust direction, reinforce clear thinking；The prestressing force of offer can not only supply lock
The fan muscle of pier part tensile region can also increase the shear resistance of support, supplement the deficiency of arc door support Crack Control.3, arc
Door support two sides are widened, and can not only further supplement supplying for arc door support Crack Control, moreover it is possible to be prestress wire system
Anchored end is provided, anchors beam without in addition arrangement.4, using high-intensitive, underrelaxation steel strand wires, intensity is high, and dosage is few, directly
Diameter is small, after easy construction and steel strand wires embedment gate pier surface concrete, in appearance without large change, also helps the anti-of steel strand wires
Rotten antirust.5, this programme can solve the problems, such as that gate pier part tensile region fan muscle is insufficient, arc door support Crack Control is insufficient simultaneously,
And easy construction, difficulty of construction is small, and project cost is low.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the overall structure elevation of the utility model.
Fig. 3 is the sectional view of the anchoring in the utility model.
In figure: former arc door support 1, gate pier 2 widen arc door support 3, encased steel plate 4, backfill expansion cement slurry 5, prestressing force
Steel strand wires 6, flat anchor anchor head 7, steel sleeve 8, anchor head diverter 9, drilling 10, extruding anchor 11.Arrow indicates former arc door support in Fig. 1
1 thrust direction.
Specific embodiment
The performance that according to the present invention will be described in detail below with reference to the accompanying drawings, but they are not constituted to the utility model
It limits, it is only for example, while by illustrating the utility model the advantages of will become clearer and be readily appreciated that.
Referring to Fig.1 shown in -3: a kind of arc door support prestressed reinforcement structure, it includes former arc door support 1, gate pier 2, widens
Arc door support 3, encased steel plate 4, backfill expansion cement slurry 5, prestress wire 6, flat anchor anchor head 7, steel sleeve 8, anchor head turn to
Device 9, drilling 10 and extruding anchor 11；
The former arc door support 1 is fixed on the gate pier 2, and former 1 both ends of arc door support are prolonged outward
It stretches to be provided with and widens arc door support 3, the width widened preferably is determined according to gate pier and arc door seat structure, unsuitable wide choked flow.
The former arc door support 1 and the adjacent side of arc door support 3 of widening are provided with encased steel plate 4, and institute
Widening at the top and bottom of arc door support 3 for stating is provided with encased steel plate 4；
Along former 1 thrust direction of arc door support, in described widening, arc door support 3 is monosymmetric is disposed with pre- answer
Power steel strand wires 6,
The prestress wire 6 provides the prestressing force opposite with former arc door 1 thrust direction of support, offsets the former arc in part
Door 1 thrust of support makes existing 2 local tensile region fan muscle of gate pier be able to satisfy code requirement, while also adding former arc door branch
The shear resistance of seat 1, in addition, former 1 two sides of arc door support are widened and former 1 Crack Control of arc door support can not only be made to be able to satisfy specification want
It asks, moreover it is possible to provide anchored end for prestress wire 6.
The 6 upstream anchored end of prestress wire is solid in the concrete in gate pier 2 using the extruding anchor 11,
Downstream stretching end is fixed on described widen in the concrete of arc door support 3 using the flat anchor anchor head 7.
2 outer surface of gate pier is cut in advance and is embedded to the prestress wire 6, is embedded to the prestress steel
The outer surface of gate pier 2 in twisted wire 6 is backfilled with backfill expansion cement slurry 5.
Described widening in arc door support 3 is provided with steel sleeve 8 and anchor head diverter 9 in advance, and is arranged with stretching end
Described flat anchor anchor head 7 splicing.
The gate pier 2 is provided with drilling 10 in advance, the hole depth of the drilling 10 is 1 meter, and the drilling 10
Direction with the angle between the gate pier 2 be 40 degree.
The utility model also proposed a kind of construction method of arc door support prestressed reinforcement structure, it includes following construction
Step；
1., configured according to the local tensile region fan muscle of the structure size of former arc door support 1 and gate pier 2, calculate design work
The former arc door support 1 reinforces diameter, radical and the prestressing force of required prestress wire 6 under condition, and widens described
Widen the specific width of arc door support 3 described in former 1 two sides of arc door support；
2., cut former arc door support 1 and 5 centimetres of concrete for widening 3 contact surface of arc door support, cut simultaneously
The gate pier 2 and former arc door support 1 widen 5 centimetres of contact surface concrete between arc door support 3；Then it is connect in described
Contacting surface brushing interface glue widens arc door support 3 described in bar planting after-pouring on the basis of former arc door support 1；Before pouring
Widen pre-buried flat anchor anchor head 7, steel sleeve 8 and anchor head diverter 9 in arc door support 3 in described in advance；
3., it is described widen arc door support 3 be coated with encased steel plate 4 and simultaneously in the former arc door branch
The contact surface of seat 1 and the gate pier 2 is enclosed with encased steel plate 4, and the encased steel plate 4 stretches out and described widens arc door branch
Each 1 meter of 3 both sides of the edge of seat；It stretches out between the encased steel plate 4 and gate pier 2 and is fixed by coating adhesive.
4., the prestress wire 6 arranged along former 1 thrust direction of arc door support, in the gate pier 2
Surface cuts 5cm, and forms groove on 2 surface of gate pier, and be embedded to prestress wire 6；
5., the 6 upstream anchored end of prestress wire is using the solid concrete in gate pier 2 of the extruding anchor 11
In, it drills on the gate pier 2 in advance, forms drilling 10；
6., the 6 downstream stretching end of prestress wire is fixed on using the flat anchor anchor head 7 and described widens arc
In the concrete of door support 3, the anchor head model of the flat anchor anchor head 7 is according to the diameter and root of the prestress wire 6
Number determines；
7., after the prestress wire 6 is stretched to design requirement, 6 surface of prestress wire return
It is smoothed out after being filled with the backfill expansion cement slurry 5.
1 meter of hole depth of each drilling 10,40 degree of the angle between the drilling 10 and the gate 2.
For this patent relative to " gate pier bracket prestressing force is lossless reinforced structure " patent, advantage is as follows:
(1) this patent prestressed reinforcement structure stretching end is anchored at by flat anchor and is widened on concrete.Advantage is tensioning
End is located on concrete structure, and stress condition is preferable, when tensioning will not recurring structure destroy.(2) this patent prestress wire
Full section is embedded in concrete, and advantage is to be conducive to the anti-corrosion of steel strand wires, ensures the durability of prestressed reinforcement structure.(3) originally
Patent prestress wire can change prestress wire direction by anchor head diverter, be adapted to different arc door support knots
Structure, structure adaptability are preferable.(4) this patent New-old concrete is taken cut part concrete, brush interface glue, bar planting,
The measures such as affixing steel plate, advantage be to enhance the globality of structure, prevents from applying bond between fresh and hardened concretes position after prestressing force
It destroys.
Above-mentioned unspecified part is the prior art.
Claims (4)
1. a kind of arc door support prestressed reinforcement structure, it is characterised in that: it includes former arc door support (1), gate pier (2), widens
Arc door support (3), encased steel plate (4), backfill expansion cement slurry (5), prestress wire (6), flat anchor anchor head (7), steel sleeve
(8), anchor head diverter (9), drilling (10) and extruding anchor (11)；
The former arc door support (1) is fixed on the gate pier (2), and former arc door support (1) both ends are outward
It is extended to have and widens arc door support (3),
The former arc door support (1) and the adjacent side of arc door support (3) of widening are provided with encased steel plate (4), and
Described widening at the top and bottom of arc door support (3) is provided with encased steel plate (4)；
Prestressing force has been arranged symmetrically in described arc door support (3) two sides of widening along former arc door support (1) thrust direction
Steel strand wires (6),
Prestress wire (6) the upstream anchored end is using the solid concrete in gate pier (2) of the extruding anchor (11)
In, downstream stretching end is fixed on described widen in the concrete of arc door support (3) using the flat anchor anchor head (7).
2. a kind of arc door support prestressed reinforcement structure according to claim 1, it is characterised in that: described in cutting in advance
Prestress wire (6) described in gate pier (2) outer surface and embedment, the gate pier (2) being embedded in the prestress wire (6)
Outer surface be backfilled with backfill expansion cement slurry (5).
3. a kind of arc door support prestressed reinforcement structure according to claim 1 or 2, it is characterised in that: in advance described
Widen in arc door support (3) the flat anchor for being provided with steel sleeve (8) and anchor head diverter (9), and being arranged with stretching end
Anchor head (7) splicing.
4. a kind of arc door support prestressed reinforcement structure according to claim 3, it is characterised in that: in advance in the lock
Pier (2) is provided with drilling (10), and the hole depth of the drilling (10) is 1 meter, and the direction of the drilling (10) with it is described
Angle between gate pier (2) is 40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683386.0U CN209277115U (en) | 2018-10-17 | 2018-10-17 | A kind of arc door support prestressed reinforcement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821683386.0U CN209277115U (en) | 2018-10-17 | 2018-10-17 | A kind of arc door support prestressed reinforcement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209277115U true CN209277115U (en) | 2019-08-20 |
Family
ID=67604776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821683386.0U Withdrawn - After Issue CN209277115U (en) | 2018-10-17 | 2018-10-17 | A kind of arc door support prestressed reinforcement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209277115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137838A (en) * | 2018-10-17 | 2019-01-04 | 长江勘测规划设计研究有限责任公司 | A kind of arc door support prestressed reinforcement structure and construction method |
-
2018
- 2018-10-17 CN CN201821683386.0U patent/CN209277115U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137838A (en) * | 2018-10-17 | 2019-01-04 | 长江勘测规划设计研究有限责任公司 | A kind of arc door support prestressed reinforcement structure and construction method |
| CN109137838B (en) * | 2018-10-17 | 2024-01-05 | 长江勘测规划设计研究有限责任公司 | Prestressed reinforcement structure of arc door support and construction method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190820 Effective date of abandoning: 20240105 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190820 Effective date of abandoning: 20240105 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |