CN109750591A - A kind of portal crane traffic bridge arranged on the sluice and dam of the hydropower station - Google Patents
A kind of portal crane traffic bridge arranged on the sluice and dam of the hydropower station Download PDFInfo
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- CN109750591A CN109750591A CN201910035633.9A CN201910035633A CN109750591A CN 109750591 A CN109750591 A CN 109750591A CN 201910035633 A CN201910035633 A CN 201910035633A CN 109750591 A CN109750591 A CN 109750591A
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 9
- 239000004567 concrete Substances 0.000 claims description 12
- 239000011150 reinforced concrete Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims 2
- 239000011210 fiber-reinforced concrete Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 14
- 239000002344 surface layer Substances 0.000 abstract description 12
- 238000007599 discharging Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000004576 sand Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Abstract
The invention discloses a kind of door machine access bridges being arranged on the gate dam of power station, the bridge of door machine access bridge includes the first continuous box girder beam body and the second continuous box girder beam body being arranged at the top of gate pier along gate dam axis direction, first continuous box girder beam body and the second continuous box girder beam body are located at the two sides of maintenance gate slot, and it is connect by support with gate pier, removable cover is provided at the top of maintenance gate slot, removable cover is provided with above maintenance gate slot, removable cover one end is placed on the first continuous box girder beam body downstream cantilever shoulder, the other end is placed on the second continuous box girder beam body upstream cantilever shoulder, the bridge floor of access bridge is formed positioned at the access bridge surface layer of two sides and intermediate removable cover, the embedded part slot of embedded wharf portal crane track built-in fitting is reserved in continuous box girder beam body and access bridge surface layer.Both the walking of gate dam lock roof door machine had been met, while also having met gate dam place river two sides Heavy Traffic vehicle pass-through.While meeting door machine and Heavy Traffic vehicle pass-through, the differential settlement deformation of gate dam has been adapted to.
Description
Technical field
The present invention relates to the gate dam door machine access bridge arrangement form in a kind of hydraulic and hydroelectric engineering, especially one kind is arranged in
Door machine access bridge on the gate dam of power station is suitable for being existed by river effect on building, difficult arrangement and gate dam foundation uneven
The Heavy Traffic bridge of sedimentation.
Background technique
Dam door machine access bridge is located on the axis of dam, is a kind of building being located on gate dam gate pier, is used for lock roof door machine
Walking and traffic are current, and undertake gate dam construction period two sides construction equipment, communications and transportation and personnel simultaneously, times that goods and materials are linked up
Business.
Usual door machine access bridge uses Simple T-Girders, I beam or rectangular beam structures, current to meet door machine operation and traffic.
But the gate dam big for port size, and gate pier basis is there are when differential settlement, if access bridge is using Simple T-Girders, I beam
Or the structures such as rectangular beam, then need to increase beam body height, not only increased beam body amount of concrete, but hinder lower part river overcurrent,
Floating row, ice discharging；Prestressed structure is such as used, then is difficult to scratch in beam body caused by resisting prestressing force when off working state.It is especially right
In the gate dam for having special traffic requirement, such as door machine traffic, Heavy Traffic, simple beam structure will seem especially improper.For
Design load is larger, and bridge height is restricted, and when structural shape is limited by construction condition, door machine access bridge is used
The structures such as Simple T-Girders, I beam or rectangular beam are not suitable for.
Reinforced concrete hollow shear wall is common bridge type in Medium Span bridge.The continuous bridge of across footpath big or middle is general
It is arranged using unequal span.Continuous beam is complicated compared with simply supported girder bridge and cantilever glider bridge stress, is a kind of statically indeterminate system.Continuous bridge with
Simply supported girder bridge is compared with cantilever glider bridge, and Uniform Load moment of flexure maximum value can reduce 50% or so than simply supported beam, moment of flexure drawing
Product can reduce 2/3 or so than simply supported beam.Due to the reduction of control moment, dead load is caused to reduce, keeps bridge self weight lighter.But it is continuous
The differential settlement of beam bridge support can cause additional internal force, therefore continuous bridge is more demanding to foundation condition；But continuous bridge exists
Jointless in one, driving condition are good.
Summary of the invention
The technical problem to be solved by the present invention is to, provide a kind of with strong applicability, bearing capacity is higher, be suitble to span compared with
Greatly, globality is preferably arranged in the door machine access bridge on the gate dam of power station.
The technical scheme adopted by the invention is that: a kind of door machine access bridge being arranged on the gate dam of power station, door machine traffic
The bridge of bridge includes the first continuous box girder beam body and the second continuous box girder beam being arranged at the top of gate pier along gate dam axis direction
Body, the first continuous box girder beam body and the second continuous box girder beam body are located at the two sides of maintenance gate slot, and pass through support and gate pier
Connection, removable cover is provided at the top of maintenance gate slot, removable cover, removable cover one are provided with above maintenance gate slot
End is placed on the first continuous box girder beam body downstream cantilever shoulder, and the other end is placed in the second continuous box girder beam body upstream cantilever shoulder
On, the bridge floor of access bridge is formed positioned at the access bridge surface layer of two sides and intermediate removable cover, in continuous box girder beam body and traffic
The embedded part slot of embedded wharf portal crane track built-in fitting is reserved in bridge floor layer.
The gate dam is large aperture, porous, and every hole is independent, subsiding crack is respectively provided between hole, the first continuous box girder beam body and
Second continuous box girder beam body is unequal span, unsymmetrical section, and lateral framing arranges that support is divided into side support and middle support, is
Side activity, side hold-down support or two sides movable bearing support.
Door machine access bridge two sides are additionally provided with railing, and railing is located at the upper of door machine access bridge continuous box girder beam body top surface
Downstream periphery is highly not less than 1.0m, is connect with door machine access bridge continuous box girder beam body using monoblock type or assembled.
The first continuous box girder beam body and the second continuous box girder beam body use cast-in-place or prefabricated In Reinforced Concrete Box Girder,
Its strength grade of concrete is not less than C50.
The access bridge surface layer is laid in door machine access bridge continuous box girder beam body top surface, using cast-in-situ steel reinforced concrete or fibre
Concrete is tieed up, thickness is not less than 10cm, and strength grade of concrete is not less than C50, and bridge floor can walk Heavy Traffic and crowd.
The removable cover is armored concrete or steel construction cover board.
Door machine access bridge continuous box girder beam body longitudinal direction a side support and middle support are arranged in same lock hole two sides
On gate pier, to reduce influence of the gate pier foundation uneven settlement to door machine access bridge.
Beneficial effects of the present invention are suitable for the door machine access bridge of big port size gate dam, have both met gate dam door machine row
It walks and requirement that traffic is current, also adapts to sluice foundation differential settlement and the restricted access bridge of bridge height.
Detailed description of the invention
Fig. 1 is the floor map of gate dam door machine access bridge of the present invention.
Fig. 2 is the elevational schematic view of gate dam door machine access bridge of the present invention.
Fig. 3 is the sectional schematic diagram of gate dam door machine access bridge of the present invention.
In figure: 1-access bridge continuous box girder beam body；2-access bridge continuous box girder beam bodies；3-supports；4-removable covers；
5-access bridge surface layers；6-railings；7-gate piers；8-gate piers basis；9-track preformed grooves；10-maintenance gate slots.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description:
As shown in Figures 1 to 3, the door machine access bridge being arranged on the gate dam of power station of the invention, which is characterized in that door machine is handed over
The bridge of logical bridge includes the first continuous box girder beam body 1 and the second continuous box girder being arranged at the top of gate pier along gate dam axis direction
Beam body 2, the first continuous box girder beam body 1 and the second continuous box girder beam body 2 are located at the two sides of maintenance gate slot 10, and pass through support
3 connect with gate pier 7, and the top of maintenance gate slot 10 is provided with removable cover 4, and the top of maintenance gate slot 10 is provided with removable cover
Plate 4,4 one end of removable cover are placed on 1 downstream cantilever shoulder of the first continuous box girder beam body, and the other end is placed in the second continuous box girder beam
On 2 upstream cantilever shoulder of body, the bridge floor of access bridge is formed positioned at the access bridge surface layer 5 of two sides and intermediate removable cover 4, even
The embedded part slot 9 of embedded wharf portal crane track built-in fitting is reserved in continuous box girder body and access bridge surface layer.
The gate dam is large aperture, porous, and every hole is independent, is respectively provided with subsiding crack, 1 He of the first continuous box girder beam body between hole
Second continuous box girder beam body 2 is unequal span, unsymmetrical section, lateral framing arrangement, and support 3 divides for side support and middle support,
For side activity, side hold-down support or two sides movable bearing support.
Door machine access bridge two sides are additionally provided with railing 6, and railing 6 is located at door machine access bridge continuous box girder beam body top surface
Upstream and downstream outer rim is highly not less than 1.0m, is connect with door machine access bridge continuous box girder beam body using monoblock type or assembled.
The first continuous box girder beam body 1 and the second continuous box girder beam body 2 use cast-in-place or prefabricated reinforced concrete box
Beam, strength grade of concrete are not less than C50.
The access bridge surface layer 5 is laid in door machine access bridge continuous box girder beam body top surface, using cast-in-situ steel reinforced concrete or
Fiber concrete, thickness are not less than 10cm, and strength grade of concrete is not less than C50, and bridge floor can walk Heavy Traffic and crowd.
The removable cover 4 is armored concrete or steel construction cover board.
Door machine access bridge continuous box girder beam body longitudinal direction a side support and middle support are arranged in same lock hole two sides
On gate pier, to reduce influence of the gate pier foundation uneven settlement to door machine access bridge.
Gate dam gate pier basis 8 is located on soft base, by the longitudinal a side support of access bridge continuous box girder beam body 1,2
And middle support is arranged on the gate pier of same lock hole two sides, reduces effect caused by differential settlement.The access bridge surface layer
5, access bridge continuous box girder beam body 1,2 and access bridge surface layer 5 reserve embedded part slot 9 and bury wharf portal crane track built-in fitting, therefore box beam is non-
Symmetrical section.
The door machine access bridge is divided into two width box-beam structure of upstream and downstream i.e. access bridge continuous box girder beam body 1,2, middle part maintenance
Gate slot top position uses removable cover 4.Usually removable cover 4 is placed on two width box girder cantilever bracket of upstream and downstream, and bridge floor is feasible
Walk Heavy Traffic and crowd.When main gate need to overhaul, the removable cover 4 is opened, door machine orbits, and hangs
Bulkhead gate water blocking；After the completion of main gate maintenance, bulkhead gate is hung out, the removable cover 4 is closed.
The door machine access bridge arranges that box beam top is reserved wharf portal crane track built-in groove and put using Reinforced Concrete Continuous Box Girder
Set the bracket of removable cover.Access bridge surface layer is levelling and meets traffic passage.Bridge lateral is arranged as during two panels continuous box girder adds
Between removable cover structure, therefore in addition to considering door machine operating load, also need to consider to drive a vehicle and when Heavy Traffic inter panel transverse direction
Lever transmission effect.When main gate need to overhaul, removable cover is moved out of, and two panels continuous box girder is independent when door machine work is run
Stress.
The present invention is different from the setting method of conventional door machine access bridge, substitutes Simple T-Girders, I beam using continuous box-beam structure
Or rectangular beam structures, to improve the lateral globality and anti-twisting property of bridge.Traffic bridge uses beam structure, and will
Traffic bridge longitudinal direction a side support and middle support are simutaneously arranged on the gate pier basis of corresponding side, reduce differential settlement
Caused effect.Bracket is arranged to set up removable cover in box beam, while meeting the walking of gate dam lock roof door machine and the heavy duty of dam two sides
The current requirement of vehicular traffic.Relative to traditional door machine access bridge, to meet door machine and Heavy Traffic vehicle logical described in this example
While row, soft base gate dam foundation differential settlement and the restricted access bridge of bridge height are also adapted to.
It is described in detail combined with specific embodiments below:
Some hydropower station engineering, total power of station 40MW, 1.5 hundred million kWh of average annual energy output.Project playout from a left side to
The right side is respectively left bank earth dam section, ship lock, connection earth dam section, flood discharge ice discharging lock, workshop, right bank earth dam section.Flood discharge ice discharging lock and water
Power Plant linking, positioned at the center portion of major river bed.Flood discharge ice discharging lock is made of lock chamber section and energy dissipating section, and lock chamber section flows downstream
To long 30.0m, vertical water flows to width 78.0m.Using WES practical weir flood discharge structure, the maximum high 20.5m of lock.Because of flood discharge ice discharging lock
Gate pier span setting is 3 × 26m, for current built relatively large span setting gate pier in the world；And design load is heavy duty, is removed
Consider outside door machine load, while needing to carry out the design checking of HK-80 load, the more common Highway Bridge load of design load wants high
Very much.And flood discharge ice discharging gate foot 1m is with down toward the dolomite upper limit, lithology is mainly loam, sandy loam, and part is containing flour sand, thin
Sand, the interlayer of middle sand and gravel or lenticular body are with a thickness of 0.1~0.2m, fine sand, middle sand, coarse sand between sandy loam and dolomite
With thin layers or the lenticular body such as gravel, thickness about 0.0~4.6m, therefore flood discharge ice discharging gate foot is located on soft base, and basis is uneven
Effect caused by settling is big.
Therefore flood discharge ice discharging gate machine access bridge of the invention is arranged using continuous box girder.Door machine access bridge span setting is
(24+28+24) m, bridge porous across footpath overall length 76m, deck-molding 1.85m, box girder body are poured using C50 armored concrete.Door machine
Access bridge is divided into two width of upstream and downstream i.e. access bridge continuous box girder beam body 1,2, and middle part flood discharge ice discharging lock maintenance gate slot position uses steel
Reinforced concrete removable cover 4.1 width 4.35m of access bridge continuous box girder beam body, 2 width 3.1m of access bridge continuous box girder beam body, bridge are complete
Width is 10.65m.Usually removable cover 4 is placed on two width box girder cantilever bracket of upstream and downstream, and bridge floor can walk Heavy Traffic and people
Group.When main gate need to overhaul, the removable cover 4 is opened, door machine orbits, and hangs bulkhead gate water blocking；
After the completion of main gate maintenance, bulkhead gate is hung out, the removable cover 4 is closed.
According to design water level and floor elevation, the setting of access bridge continuous box girder beam body 1,2 is height-limited and is not higher than
1.85m.Since this bridge track built-in fitting need to reserve 25cm × 45cm track preformed groove 9, and access bridge surface layer 5 is set as 15cm,
Old friend is led to the continuous box girder body 1~2 of bridging and is poured constantly, and reserved 10cm × 45cm track preformed groove 9 is needed at web.
Access bridge continuous box girder beam body 1 span centre top plate thickness 20cm, bottom plate thickness 25cm；Top plate thickness 40cm, bottom plate near fulcrum
Thick 45cm；Span centre web thickness 40cm, fulcrum are nearby thickeied to 95cm；Central bearing point beam width 2m, Bian Zhidian beam width 1.5m.
Access bridge continuous box girder beam body 2 span centre top plate thickness 20cm, bottom plate thickness 25cm；Top plate thickness 40cm, bottom plate thickness 45cm near fulcrum；Across
Midfield plate thickness 40cm, fulcrum are nearby thickeied to 50cm；Central bearing point beam width 2m, Bian Zhidian beam width 1.5m.
(600 × 30 × 600mm) Q235D steel plate support 3 is selected, railing 6 is arranged in bridge floor.
Embodiment described above is merely to illustrate technical idea and feature of the invention, in the art its object is to make
Technical staff it will be appreciated that the contents of the present invention and implement accordingly, patent model of the invention only cannot be limited with the present embodiment
It encloses, i.e., same changes or modifications made by all disclosed spirit are still fallen in the scope of the patents of the invention.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035633.9A CN109750591A (en) | 2019-01-15 | 2019-01-15 | A kind of portal crane traffic bridge arranged on the sluice and dam of the hydropower station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035633.9A CN109750591A (en) | 2019-01-15 | 2019-01-15 | A kind of portal crane traffic bridge arranged on the sluice and dam of the hydropower station |
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| Publication Number | Publication Date |
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| CN109750591A true CN109750591A (en) | 2019-05-14 |
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| CN201910035633.9A Pending CN109750591A (en) | 2019-01-15 | 2019-01-15 | A kind of portal crane traffic bridge arranged on the sluice and dam of the hydropower station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164745A (en) * | 2021-11-08 | 2022-03-11 | 长江勘测规划设计研究有限责任公司 | Separated connecting structure and method for porous water gate and river-crossing bridge |
| CN114481804A (en) * | 2022-02-11 | 2022-05-13 | 长江勘测规划设计研究有限责任公司 | Concrete working bridge and construction method for opening and closing gate of large-span prestressed flood gate |
| CN116791539A (en) * | 2023-08-16 | 2023-09-22 | 中国电建集团北京勘测设计研究院有限公司 | Gate Gao Hunning soil-fixed end beam supporting structure and construction method thereof |
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| CN105672213A (en) * | 2016-03-24 | 2016-06-15 | 中水北方勘测设计研究有限责任公司 | Floating transportation type integral steel gate dam for coastal region |
| CN205529845U (en) * | 2016-01-28 | 2016-08-31 | 上海勘测设计研究院有限公司 | Bridge structures that floodgate bridge combines |
| CN205576860U (en) * | 2016-04-25 | 2016-09-14 | 珠江水利委员会珠江水利科学研究院 | Dam crest is as floodgate dam structure of traffic bridge |
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| CN107447736A (en) * | 2017-09-08 | 2017-12-08 | 中国电建集团中南勘测设计研究院有限公司 | A kind of power station inlet/outlet arrangement |
| CN209798507U (en) * | 2019-01-15 | 2019-12-17 | 中国电建集团北京勘测设计研究院有限公司 | Gate crane traffic bridge arranged on gate dam of hydropower station |
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2019
- 2019-01-15 CN CN201910035633.9A patent/CN109750591A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130083410A (en) * | 2012-01-12 | 2013-07-22 | (주)태영이씨엠 | Slab-type box girder of a varying longitudinal section made by prestressed precast concrete and method constructing the bridge therewith |
| CN203755127U (en) * | 2014-03-10 | 2014-08-06 | 中交第三公路工程局有限公司 | Pre-stress high-performance concrete continuous box girder bridge |
| CN205529845U (en) * | 2016-01-28 | 2016-08-31 | 上海勘测设计研究院有限公司 | Bridge structures that floodgate bridge combines |
| CN105672213A (en) * | 2016-03-24 | 2016-06-15 | 中水北方勘测设计研究有限责任公司 | Floating transportation type integral steel gate dam for coastal region |
| CN205576860U (en) * | 2016-04-25 | 2016-09-14 | 珠江水利委员会珠江水利科学研究院 | Dam crest is as floodgate dam structure of traffic bridge |
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| CN209798507U (en) * | 2019-01-15 | 2019-12-17 | 中国电建集团北京勘测设计研究院有限公司 | Gate crane traffic bridge arranged on gate dam of hydropower station |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164745A (en) * | 2021-11-08 | 2022-03-11 | 长江勘测规划设计研究有限责任公司 | Separated connecting structure and method for porous water gate and river-crossing bridge |
| CN114481804A (en) * | 2022-02-11 | 2022-05-13 | 长江勘测规划设计研究有限责任公司 | Concrete working bridge and construction method for opening and closing gate of large-span prestressed flood gate |
| CN116791539A (en) * | 2023-08-16 | 2023-09-22 | 中国电建集团北京勘测设计研究院有限公司 | Gate Gao Hunning soil-fixed end beam supporting structure and construction method thereof |
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Application publication date: 20190514 |