CN209555753U - The anti-fall beam construction of pier monoblock type on a kind of arch - Google Patents
The anti-fall beam construction of pier monoblock type on a kind of arch Download PDFInfo
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- CN209555753U CN209555753U CN201822210039.2U CN201822210039U CN209555753U CN 209555753 U CN209555753 U CN 209555753U CN 201822210039 U CN201822210039 U CN 201822210039U CN 209555753 U CN209555753 U CN 209555753U
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- 238000010276 construction Methods 0.000 title claims abstract description 110
- 238000007689 inspection Methods 0.000 claims abstract description 17
- 238000007596 consolidation process Methods 0.000 claims abstract description 7
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 15
- 230000002265 prevention Effects 0.000 abstract description 7
- 239000000837 restrainer Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 239000004567 concrete Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910000754 Wrought iron Inorganic materials 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The anti-fall beam construction of pier monoblock type on a kind of arch, to effectively improve the antidetonation and girder falling performance of bridge, not only meet the requirement of restrainer, but also met the railroad bridge work business requirement current for support maintenance, and well solve the problem of falling-off prevention measures are interfered with each other with support Inspection.Including main arch and on it along pier on the spaced arch of bridge, encircle upper beam and pass through seat supports in the pier top for encircleing upper pier, is arranged in the pier top of pier along direction across bridge interval on the arch and the anti-fall girder construction in integrally-built left side, the anti-fall girder construction in right side are formed using formed by integrally casting reinforced concrete and consolidation with the upper pier of arch.The anti-fall girder construction in the left side, the anti-fall girder construction in right side have a cantilever segment, armstand section in reversed, positive inverted L shape, armstand section lower end and encircle upper pier consolidation, and above web outer wall is facing for cantilever segment front end face and arch, and there are gaps.The anti-fall girder construction in the left side, the anti-fall girder construction in right side the corresponding inner wall of armstand section on there is groove structure, formed between the inner wall of the groove structure and the side wall of the collateral seat and check channel.
Description
Technical field
The utility model relates to sciences of bridge building, in particular to a kind of to be suitable for pier pier top girder falling on arch across railway arch bridge greatly
Construction.
Background technique
In recent years, the construction of China's Mountainous high speed railway Loads of Long-span Bridges obtains fast-developing, large quantities of structure novels, technology
It is complicated and difficulty of construction is big big builds up across bridge complex.Wherein, most representative to belong to large-span concrete arch bridge, such as Shanghai
Kun Gaotiebei disk river grand bridge is the concrete arch-type bridge of main span 445m.Large-span concrete arch bridge due to its rigidity of structure is big, across
The advantages that more ability is strong and easily adapts to environment, is increasingly becoming the preferred bridge type across Valley.However, being located at complicated hardships and dangers
The higher bridge in mountain area, especially earthquake intensity, either railway bridge or highway bridge have how to prevent geological process
Under, the problem of bridge girder falling.Currently, there are mainly three types of the anti-fall beam constructions of the common bridge pier of railroad bridge: 1. beam-ends bottom is set
Formed steel construction is set, is stopped using pier top pinner structure；2. circular groove is arranged in beam bottom and pier top corresponding position, construct
Stopped at rear insertion rod iron；3. and highway bridge is stopped frequently in bent cap both lateral sides setting concrete block.
Three of the above technical measures exist following insufficient:
1. fashioned iron is combined with pier top bearing pad stone sets gear construction.This is configured to the common falling-off prevention measures of railroad bridge, is
Guarantee safety of the beam structure under geological process, fashioned iron block is set between beam and pier, and pre-buried using bolt and beam body
Steel plate is attached, and fashioned iron beam falling prevention stopping block is arranged on the inside of pier top bearing pad stone, carries out horizontal and vertical limit using pinner,
Play the role of under geological process, restrainer.When needing replacing support or top beam operation, girder falling connection spiral shell need to be removed
Bolt also needs to reinstall connection bolt, process is many and diverse, inconvenient after the completion of specified position progress top beam, bearing replacement.
And there is later period replacement and anti-corrosion in fashioned iron block.
2. the anti-fall beam construction of rod iron type.Falling-off prevention measures are done to support inspection, maintenance replacement operation to reduce to the greatest extent
It disturbs, railroad bridge had developed a kind of anti-fall beam construction of rod iron type again in recent years, i.e., in beam bottom and the corresponding position setting one of pier top
The circular groove of depthkeeping degree, the built-in fittings such as interior setting steel drum of groove, after beam body installation is in place, then super beam body bottom and pier top respectively
It is inserted into rod iron, flange is used between rod iron and is bolted.However the construction major defect is, rod iron installation is inconvenient, and beam body
It is unpunctual to align, and the merging precision of rod iron is relatively difficult to guarantee, and there are problems that later period replacement and anticorrosion of steel structure.
3. the anti-fall beam construction of block type.Highway bridge is restrainer frequently in bent cap top both lateral sides setting girder falling
Block, block are rectangular solid concrete structure, and embedded bar is attached with bent cap main reinforcement, applies for convenience of beam body and bent cap
Work, beam falling prevention stopping block concrete are often poured after beam portion is in place again.But railroad bridge is to later period operation maintenance requirement
Higher, work business will periodically check bridge, it is desirable that bridge pier top surrounding is both needed to setting channel, reaches convenient for personnel to bridge pier
It is checked with support, this beam falling prevention stopping block construction blocks sight, is unable to satisfy inspection requirements.
To sum up, the safety for guarantee beam body under geological process, current method have some limitations, can not solve
The problem of certainly anti-fall beam construction and the inspection of bridge pad and replacement spatial coherence are disturbed.Especially for mountain area long-span arch bridge,
Pier is frequently located in several hundred meters above valley of high-altitude on arch, and operation is inconvenient, and there is also rear for the anti-fall beam construction of steel construction class
The problem of phase replacement, maintenance and anti-corrosion, difficulty is brought to the maintenance in bridge operation stage.
Utility model content
The utility model technical problem of being solved is to provide the anti-fall beam construction of pier monoblock type on a kind of arch, to effectively improve
The antidetonation and girder falling performance of bridge, had not only met the requirement of restrainer, but also met the business of railroad bridge work and support maintenance is led to
Capable requirement well solves the problem of falling-off prevention measures are interfered with each other with support Inspection.
The technical scheme in the invention for solving the technical problem is as follows:
The anti-fall beam construction of pier monoblock type on a kind of arch, including main arch and on it along pier on the spaced arch of bridge, on arch
Beam by seat supports in the pier top for encircleing upper pier, it is characterized in that: on the arch in the pier top of pier along the setting of direction across bridge interval with
Pier forms the anti-fall girder construction in integrally-built left side, right side girder falling knot using formed by integrally casting reinforced concrete and consolidation on arch
Structure；The anti-fall girder construction in the left side, the anti-fall girder construction in right side have cantilever segment, armstand section, armstand section in reversed, positive inverted L shape
Lower end and the upper pier consolidation of arch, cantilever segment front end face and the upper web outer wall of arch are facing, and there are gaps；The left side girder falling
Structure, the anti-fall girder construction in right side the corresponding inner wall of armstand section on there is groove structure, the inner wall of the groove structure and the side
It is formed between the side wall of support and checks channel.
The beneficial effects of the utility model are embodied in following aspects:
One, it using the anti-fall girder construction in left side, the anti-fall girder construction in right side with the upper pier one of arch, constructs together with upper pier with encircleing,
Without additional, other anti-fall beams (such as fashioned iron block, rod iron), simplify working procedure, advantageously reduce and apply
Work cost；
Two, girder falling is configured to armored concrete construct, and the later period is non-maintaining, after solving the anti-fall beam of steel construction class
The problem of phase replacement, maintenance and anti-corrosion；
Three, the anti-fall girder construction in left side, the anti-fall girder construction cantilever segment front end face in right side and the upper web outer wall of arch are facing, and
There are gap, which can both meet formwork erection clearance requirement when box beam concrete pours, while guarantee geological process lower arch upper beam
It consumes energy and is displaced with certain sliding, after box girder sliding, hindered by the anti-fall girder construction of the anti-fall girder construction in left side or right side
Gear, can effectively prevent geological process lower arch upper beam from falling beam；
Four, there is groove structure on the corresponding inner wall of armstand section of the anti-fall girder construction in left side, the anti-fall girder construction in right side, it should
It is formed between the inner wall of groove structure and the side wall of the collateral seat and checks channel, well solved the operation of work business operation maintenance
The problem of space and channel out of shape, thoroughly solves anti-fall beam construction and the inspection of bridge pad and replaces asking of disturbing of spatial coherence
Topic；
Five, the anti-fall girder construction in left side, the anti-fall girder construction in right side combine together with upper pier is encircleed, and shape is succinct, whole landscape effect
Fruit is graceful.
The utility model is constructed especially suitable for pier top on the arch of mountain area long-span arch bridge, in high and steep mountains certainly with periphery
Right environment is perfectly combined, and is not limited only to the anti-fall beam construction of pier on the arch of long-span arch bridge, is equally applicable to the bridge of general bridge
The anti-fall beam construction of pier.
Detailed description of the invention
This specification includes following six width attached drawing:
Fig. 1 is the overall construction schematic diagram of the anti-fall beam construction of pier monoblock type on a kind of arch of the utility model；
Fig. 2 is the enlarged drawing of the part A in Fig. 1；
Fig. 3 is the anti-fall girder construction in left side, right side girder falling in the anti-fall beam construction of pier monoblock type on a kind of arch of the utility model
The vertical cross-section diagram of structure；
On a kind of arch of Fig. 4 the utility model in the anti-fall beam construction hogging of pier monoblock type pier pier top plan view.
Pier top hanging basket and beam bottom check that terraced facade is opposite in the anti-fall beam construction of pier monoblock type on a kind of arch of Fig. 5 the utility model
Position view；
Fig. 6 is that pier top hanging basket plane relative position is illustrated in the anti-fall beam construction of pier monoblock type on a kind of arch of the utility model
Figure.
Component, toponym and corresponding label are shown in figure: pier 20 on main arch 10, arch, the anti-fall girder construction 21 in left side,
The anti-fall girder construction 22 in right side, cantilever segment 23a, armstand section 23b, groove structure 24, intracavitary slope 25, gap B, depth of groove h, top
Face slope 26, arch upper beam 30, left side pier top support 31, right side pier top support 32, inspection socket 33, front side hanging basket 41, rear side hanging basket
42, it checks ladder 43, check channel P.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to Figures 1 and 2, the anti-fall beam construction of pier monoblock type on a kind of arch of the utility model, including main arch 10 and on it
Along pier 20 on the spaced arch of bridge, arch upper beam 30 is by seat supports in the pier top for encircleing upper pier 2.The pier of pier 20 on the arch
It is arranged on top along direction across bridge interval and integrally-built left side is formed using formed by integrally casting reinforced concrete and consolidation with the upper pier 20 of arch
Anti-fall girder construction 21, the anti-fall girder construction 22 in right side；The anti-fall girder construction 21 in the left side, the anti-fall girder construction 22 in right side are in reversed, just
To inverted L shape, there is cantilever segment 23a, armstand section 23b, the armstand lower end section 23b and encircle upper pier 2 and consolidate, cantilever segment 23a front end face with
It is facing to encircle 30 web outer wall of upper beam, and there are gap B.The gap B is generally 4~6cm.Gap B can both meet arch upper beam
Formwork erection clearance requirement when 30 concreting, while guaranteeing that geological process lower arch upper beam 30 has certain sliding energy consumption displacement,
After arch upper beam 30 is slid onto and contacts with the anti-fall girder construction 22 of the anti-fall girder construction 21 in left side or right side, by the anti-fall girder construction 21 in left side
Or the anti-fall girder construction 22 in right side is stopped, prevent geological process lower arch upper beam 30 from pier top slide caused by bridge damage
It is bad.
Referring to Fig. 3 and Fig. 4, the anti-fall girder construction 21 in the left side, the armstand section 23b of the anti-fall girder construction 22 in right side are corresponding
There is groove structure 24 on inner wall, formed between the inner wall of the groove structure 24 and the side wall of the collateral seat and check channel P.Groove
Structure 24 had both provided enough upkeep operation spaces, and 24 back side of groove structure is solid wall, in turn ensured operating personnel's
Safety.The problem of having well solved the working space of work business operation maintenance and having walked row of channels, thoroughly solves anti-fall beam construction
The problem of inspection and replacement spatial coherence with bridge pad are disturbed.
Referring to Figure 1 and Figure 3, the anti-fall girder construction 21 in the left side, the armstand section 23b outer wall of the anti-fall girder construction 22 in right side are inside
It tilts, the top surface slope 26 being inclined outwardly is set on the top surface of cantilever segment 23a, direction across bridge is in splayed structure on the whole.Left side
Anti-fall girder construction 21, the anti-fall girder construction 22 in right side combine together with upper pier 20 is encircleed, and shape is succinct, and whole landscape effect is graceful.It is logical
Crossing top surface slope 26 prevents water flow from entering support side.
Referring to Fig. 4, to make groove structure 24 form enough depth of groove h, the section of the groove structure 24 is in loudspeaker
Shape, bottom are arranged intilted intracavitary slope 25,24 internal water accumulation of groove structure are quickly discharged.Guarantee to rain and not accumulate
Water guarantees the drying of arch upper beam 30 and support range.
Referring to figure 5 and figure 6, on the arch 20 bottom of pier be fixedly installed along bridge on front side wall, rear wall front side hanging basket 41,
Rear side hanging basket 42, front side hanging basket 41, rear side hanging basket 42 and the inspection channel P of direction across bridge two sides are connected to form circular passage.It is described
Fixed setting checks ladder 43 between rear side hanging basket 42 and the inspection socket 33 for encircleing upper beam 30.Personnel convenient to overhaul pass through arch 30 case of upper beam
Indoor inspection inspection socket 33 arrives front side hanging basket 41, rear side hanging basket 42 and left side girder falling knot by the inspection ladder 43 between pier beam
In structure 21, anti-fall 22 groove structure 24 of girder construction in right side, to left side pier top support 31, right side pier top support 32 carry out maintenance and more
Change operation.
Anti-fall girder construction is simple in the utility model, pours together with upper pier 20 is encircleed, and is linked as entirety with upper pier 20 is encircleed, whole
Property it is good, structure is reasonable, and power transmission is clear, meet the bridge later period operation maintenance working space requirement, effectively overcome
The shortcomings that current various anti-fall girder constructions, it can be used for the anti-fall girder construction of all types of bridge piers of earthquake territory bridge.Anti-fall girder construction
Identical Reinforced Concrete Materials is used with upper pier 20 is encircleed, easy for construction, operation stage is non-maintaining, is a kind of with strong applicability
The anti-fall girder construction of economic and practical bridge pier.
The applicant successfully applies to the utility model in the design and construction of Shanghai Kun Gaotiebei disk river grand bridge.North
Disk river grand bridge is the type concrete arch bridge (the first in the world is greatly across concrete arch-type bridge) of main span 445m, the northern disk of pier distance on arch
The nearly 300m in river valley the lowest point, Shanghai elder brother's high-speed rail design speed per hour 350km, and the business of later period work needs periodically to carry out maintenance and inspection to each component of bridge
Operation, and carry out at night, the danger of personal height operation, pole are avoided using the anti-fall girder construction of the bridge pier of the utility model
Later period operation maintenance operation is facilitated greatly.The bridge is open to the traffic in December, 2016, runs well.This anti-fall girder construction
Convenient construction, can bridge pier of constructing when pour with bridge pier together with, each bridge pier only needs 3.4 side's concrete of increase, 308kg steel
Muscle, about 2040 yuan of cost；And if needing 1.1 tons of steel or so, 8800 yuan of cost using the anti-fall girder construction of steel construction.This reality
With 1/4 or so that the anti-fall girder construction of novel monoblock type is only the anti-fall girder construction of steel construction, material is saved, engineering has been saved and makes
Valence, and the problems such as eliminate the replacement of the anti-fall girder construction of steel construction, anti-corrosion, the later period is in the high-altitude 300m demolition, installation steel construction girder falling
Structure is very difficult, and the anti-fall girder construction of the monoblock type of the utility model greatly reduces the maintenance in later period, maintenance load.Together
When, the anti-fall girder construction of steel construction is typically mounted at the side of bearing pad stone, has blocked service personnel when checking support
Visual angle, the anti-fall beam construction with bridge pier entirety of the utility model is respectively positioned on support outer, and is provided with and checks groove, thorough
Bottom solves the problems, such as that the anti-fall beam construction of existing steel construction and the inspection of bridge pad and replacement spatial coherence are disturbed.To sum up, originally
The anti-fall beam construction of the monoblock type of utility model is that a kind of structure is simple, power transmission is clear, reasonable stress, economic and practical structure,
Cost is only the 1/4 of the anti-fall girder construction of existing steel construction, economic benefits when large area uses.
Some principles of the anti-fall beam construction of pier monoblock type on the utility model a kind of arch described above that only explains through diagrams,
Shown in being not intended to for the utility model to be confined to and in the specific structure and the scope of application, thus it is all it is all may be sharp
Corresponding modification and equivalent, belong to the applied the scope of the patents of the utility model.
Claims (5)
1. the anti-fall beam construction of pier monoblock type on a kind of arch, including main arch (10) and on it along pier on the spaced arch of bridge
(20), arch upper beam (30) by seat supports in the pier top for encircleing upper pier (20), it is characterized in that: on the arch pier (20) pier top
On be arranged along direction across bridge interval and encircle upper pier (20) integrally-built left side is formed using formed by integrally casting reinforced concrete and consolidation
Anti-fall girder construction (21), the anti-fall girder construction in right side (22)；The anti-fall girder construction in left side (21), the anti-fall girder construction in right side (22) are in
Reversely, positive inverted L shape has cantilever segment (23a), armstand section (23b), the armstand section lower end (23b) and arch upper pier (20) consolidation, hangs
Arm section (23a) front end face and arch upper beam (30) web outer wall are facing, and there are gap (B)；The anti-fall girder construction in left side
(21), there are groove structure (24) on the corresponding inner wall of armstand section (23b) of the anti-fall girder construction in right side (22), the groove structure
(24) it is formed between the side wall of inner wall and the collateral seat and checks channel (P).
2. the anti-fall beam construction of pier monoblock type on a kind of arch as described in claim 1, it is characterized in that: the anti-fall girder construction in the left side
(21), armstand section (23b) outer wall of the anti-fall girder construction in right side (22) slopes inwardly, and setting is outside on the top surface of cantilever segment (23a)
Inclined top surface slope (26), direction across bridge is in splayed structure on the whole.
3. the anti-fall beam construction of pier monoblock type on a kind of arch as described in claim 1, it is characterized in that: the groove structure (24)
Intilted intracavitary slope (25) is arranged in section flare, bottom.
4. the anti-fall beam construction of pier monoblock type on a kind of arch as described in claim 1, it is characterized in that: the gap (B) be 4~
6cm。
5. the anti-fall beam construction of pier monoblock type on a kind of arch as described in claim 1, it is characterized in that: pier (20) bottom on the arch
Front side hanging basket (41), rear side hanging basket (42), front side hanging basket (41), rear side hanging basket are fixedly installed on front side wall, rear wall along bridge
(42) circular passage is connected to form with the inspection channel (P) of direction across bridge two sides；The rear side hanging basket (42) and arch upper beam (30)
Fixed setting checks terraced (43) between inspection socket (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822210039.2U CN209555753U (en) | 2018-12-26 | 2018-12-26 | The anti-fall beam construction of pier monoblock type on a kind of arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822210039.2U CN209555753U (en) | 2018-12-26 | 2018-12-26 | The anti-fall beam construction of pier monoblock type on a kind of arch |
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| CN201822210039.2U Withdrawn - After Issue CN209555753U (en) | 2018-12-26 | 2018-12-26 | The anti-fall beam construction of pier monoblock type on a kind of arch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505230A (en) * | 2018-12-26 | 2019-03-22 | 中铁二院工程集团有限责任公司 | The anti-fall beam construction of pier monoblock type on a kind of arch |
| CN110777640A (en) * | 2019-11-07 | 2020-02-11 | 湘潭大学 | Suspension cavity structure high-energy-consumption bridge anti-seismic stop block |
| CN110904820B (en) * | 2019-11-28 | 2021-08-24 | 中铁大桥勘测设计院集团有限公司 | Horizontal restraint system of separated pier support |
-
2018
- 2018-12-26 CN CN201822210039.2U patent/CN209555753U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505230A (en) * | 2018-12-26 | 2019-03-22 | 中铁二院工程集团有限责任公司 | The anti-fall beam construction of pier monoblock type on a kind of arch |
| CN109505230B (en) * | 2018-12-26 | 2024-03-22 | 中铁二院工程集团有限责任公司 | Integral beam falling prevention structure of pier on arch |
| CN110777640A (en) * | 2019-11-07 | 2020-02-11 | 湘潭大学 | Suspension cavity structure high-energy-consumption bridge anti-seismic stop block |
| CN110904820B (en) * | 2019-11-28 | 2021-08-24 | 中铁大桥勘测设计院集团有限公司 | Horizontal restraint system of separated pier support |
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