CN207109625U - Crane span structure integral type safeguard structure - Google Patents
Crane span structure integral type safeguard structure Download PDFInfo
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- CN207109625U CN207109625U CN201721042754.9U CN201721042754U CN207109625U CN 207109625 U CN207109625 U CN 207109625U CN 201721042754 U CN201721042754 U CN 201721042754U CN 207109625 U CN207109625 U CN 207109625U
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Abstract
It the utility model is related to bridge security protection field, more particularly to a kind of crane span structure integral type safeguard structure, it is strong that technical problem to be solved is to provide a kind of protective capacities, it is applied widely, the stick-to-itive crane span structure integral type safeguard structure of structure, including pile foundation, pile foundation upper end is mounted with cushion cap, body supports platform is provided with cushion cap, main line beam body is provided with body supports platform, protective frame trestle is additionally provided with cushion cap, protective frame trestle is located at the outside of body supports platform, protection back timber is installed on protective frame trestle, protective frame trestle forms frame structure with protection back timber, frame structure both sides are provided with lateral protection network, lateral protection network upper end is connected with protection back timber, bottom is connected with main line beam body, protection back timber upper end is provided with buffering energy-absorbing layer, in protection back timber upper surface, surrounding is provided with baffle plate;By flexible and rigid double protection system, various avalanche Rolling Stones are effectively coped with, protective capacities is strong, and structure patience is good, and the scope of application is wider.
Description
Technical field
It the utility model is related to bridge security protection field, and in particular to a kind of crane span structure integral type safeguard structure.
Background technology
Avalanche rockfall hazards are a kind of common geological disasters of western high-mountain gorge areas, it have randomness and
The characteristics of uncertain, it may particularly be induced by earthquake or rainfall and produce large-scale avalanche rockfall hazards.River west is high
Waterway between mountains valley floor band, river valley cutting is deeper, and two sides bank slope is steeper, and rock mass differs greatly in addition, and part rock mass is more broken, crack hair
Educate, tectonism and weathering are serious, and the loosely-packed soil body is also loosely organized, therefore, cause along avalanche phenomenon it is more tight
Weight.The granite that is influenceed by Wenchuan earthquake along such as Wenchuan, Mao County, the activity of collapsing of metasandstone high slope are especially serious,
In addition a large amount of massifs that shatter occurred, easily further form avalanche Rolling Stone, highway engineering is caused great casualties and
Property loss, the disconnected main line of communication is blocked up, threatens traffic safety, avalanche Rolling Stone geological disaster is always the multiple area's highway work of geological disaster
Journey technological difficulties problem, harm of the avalanche Rolling Stone to bridges in highway engineering are that huge, appropriate structural shielding avalanche Rolling Stone is
It is necessary.
In existing safeguard structure, the mode of generally use is reinforced concrete Unburied tunnel structure at present, or using light section
Structural flexibility protects hangar tunnel, reinforced concrete protection open cut tunnel:Cost is higher, and protection reliability is higher, and use range is limited, is applied to more
The lateral avalanche rockfall hazards of roadbed scope are protected, the protection to bridge structure does not apply to;Light section steel structure flexible protective hangar tunnel:It is suitable
For protecting roadbed or bridge scope avalanche Rolling Stone, but steel structure protective canopy belongs to flexible protective system, in protection, large-scale avalanche
The effect of Rolling Stone is poor, and structure uses steel construction, it is necessary to which periodic maintenance, steel structure protective booth structure can be only installed at bridge knot
On structure, do not completely disengaged with bridge structure, the shock of avalanche Rolling Stone has the danger hit in itself to bridge structure.
Utility model content
Technical problem to be solved in the utility model is to provide that a kind of protective capacities is strong, applied widely, structure patience
Good crane span structure integral type safeguard structure.
The utility model solves its technical problem the technical scheme adopted is that crane span structure integral type safeguard structure, including stake
Basis, pile foundation upper end are mounted with cushion cap, body supports platform are provided with cushion cap, and main line beam is provided with body supports platform
Body, protective frame trestle is additionally provided with cushion cap, protective frame trestle is located at the outside of body supports platform, is provided with protective frame trestle
Back timber is protected, protective frame trestle forms frame structure with protection back timber, frame structure both sides is provided with lateral protection network, laterally
Protection network upper end is connected with protection back timber, and bottom is connected with main line beam body, and protection back timber upper end is provided with buffering energy-absorbing layer,
Protection back timber upper surface surrounding is provided with baffle plate.
Further, in addition to drainpipe, drainpipe one end are embedded between protection back timber and buffering energy-absorbing layer, and the other end prolongs
Extend on the outside of protection back timber.
Further, it is prefabricated to be laid in thick ovum crushed rock base course, rubber for tire cushion, thickness successively from top to bottom for buffering energy-absorbing layer
C15 concrete plates bed course, rubber for tire cushion, thick prefabricated C15 concretes plate bed course, thick ovum rubble surface layer.
Further, protection back timber is obliquely installed.
Further, lateral protection network upper and lower ends are fixed on protection back timber and main line beam body by restrict card and swell fixture
On.
Further, lateral protection network uses ring network.
Compared with prior art, the beneficial effects of the utility model are:The utility model, it is dual anti-by flexible and rigidity
Watch box system, various avalanche Rolling Stones can be effectively coped with, protection reliability is high, and protective capacities is strong, and structure patience is good, and safeguard structure can
Separated with bridge main body structure, make its scope of application wider, easy for construction, technical maturity.
Brief description of the drawings
Fig. 1 is the utility model front view;
Fig. 2 is lateral protecting screen structure schematic diagram
Fig. 3 is buffering energy-absorbing Rotating fields schematic diagram;
Fig. 1 is expressed as to reference shown in Fig. 3:1- pile foundations, 2- cushion caps, 3- body supports platforms, 4- main lines
Beam body, 5- protective frame trestles, 6- protection back timbers, the lateral protection networks of 7-, 8- buffering energy-absorbing layers, 9- baffle plates, 10- drainpipes.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1 and Figure 2, crane span structure integral type safeguard structure, including pile foundation 1, the upper end of pile foundation 1 are mounted with cushion cap 2,
Body supports platform 3 is provided with cushion cap 2, main line beam body 4 is provided with body supports platform 3, protection is additionally provided with cushion cap 2
Frame column 5, protective frame trestle 5 are located at the outside of body supports platform 3, and protection back timber 6 is provided with protective frame trestle 5, is prevented
Protect frame column 5 and form frame structure with protection back timber 6, lateral protection network 7, lateral protection network 7 are provided with frame structure both sides
Upper end is connected with protection back timber 6, and bottom is connected with main line beam body 4, protection back timber 6 upper end is provided with buffering energy-absorbing layer 8, anti-
The shield upper surface surrounding of back timber 6 is provided with baffle plate 9;In the utility model, the pile foundation 1 is used for carrying transmission superstructure and born
Lotus, important leverage is provided for integrally-built stability, pile foundation 1 is provided with cushion cap 2, the cushion cap is two, for propping up
Support upper end safeguard structure and bear to transmit load, cylinder supporting table 3 is provided with the cushion cap 2, the body supports platform 3 can
Main line beam body 4 is effectively supported, in order to facilitate the installation of main line beam body 4, the body supports platform 3 uses L-type structure, and structure is steady
It is integral protection for supporting upper strata protection system Gu securely and reliably, being additionally provided with protective frame trestle 5 on the cushion cap 2
Stability fundamental is provided, described protective frame trestle 5 is four, respectively positioned at four edges of two cushion caps 2, bears it
Hold protection system load more uniform, provide important leverage for safeguard structure protective action, be provided with the protective frame trestle 5
Back timber 6 is protected, protection back timber 6 is rigid protection system in the safeguard structure, has high strength and stiffness, can tackle various
Avalanche Rolling Stone, it is strong to combat a natural disaster protective capacities, effectively acts as protective action, and structure patience is good, ensures bridge and other facilities
Safety, the protective frame trestle 5 form frame structure with protection back timber 6, are set by frame structure, make its protective range more
Greatly, lateral protection network 7 is provided with frame structure both sides, described both sides are two sides in route direction of advance, laterally
The upper end of protection network 7 is connected with protection back timber 6, and bottom is connected with main line beam body 4, forms lateral protection system, by laterally protecting
Net 7, it effectively prevent avalanche Rolling Stone and bridge and other facilities destroyed from side, be provided with protection back timber 6 upper end
Buffering energy-absorbing layer 8, top layer protection system is formed, the buffering energy-absorbing layer 8 is flexible protective system in the safeguard structure, buffering
Absorbing energy layer 8 can play cushioning effect to avalanche Rolling Stone, absorb the energy for the avalanche Rolling Stone that part is dropped, effectively slow down avalanche
Rolling Stone protects lower end the direct impact of back timber 6, direct active force of the avalanche Rolling Stone to overall bridge is reduced, to safeguard structure
Protection with overall bridge serves vital effect, is provided with baffle plate 9 in the protection upper surface surrounding of back timber 6, ensures
Being sufficient filling with for buffering energy-absorbing layer 8, provided safeguard for flexible protective system, crane span structure integral type provided by the utility model prevents
Protection structure, combats a natural disaster that protective capacities is strong, and structure patience is good, and safeguard structure can be realized with agent structure and separated, and make its scope of application more
Extensively, convenient construction.
Due to the influence of outside environmental elements, in the case of the rainy day, safeguard structure top layer easily produces ponding, in order to prevent
Influence of the ponding to safeguard structure, in the utility model, in addition to drainpipe 10, the one end of drainpipe 10 are embedded in protection back timber 6
Between buffering energy-absorbing layer 8, the other end extends to the outside of protection back timber 6;Drainpipe 10 is embedded in into protection back timber 6 to inhale with buffering
Between ergosphere 8, drainage system is formed, drainpipe 10 can be made full use of effectively to arrange the ponding being accumulated in top layer safeguard structure
Go out, avoid ponding to destruction caused by safeguard structure, increase the service life.
In order that avalanche Rolling Stone can sufficiently slow down the impact to lower end safeguard structure, it is described slow in the utility model
Suction ergosphere 8 is laid in thick ovum crushed rock base course, rubber for tire cushion, thick prefabricated C15 concretes plate bed course, tire successively from top to bottom
Cushion rubber layer, thick prefabricated C15 concretes plate bed course, thick ovum rubble surface layer;The thick ovum metalling has stronger rupture strength, if
The orlop in integrated buffer layer and the superiors are put, effectively slow down absorption the impact energy of avalanche Rolling Stone, in the thick ovum
Rubber for tire cushion is provided with metalling, rubber for tire has high-elasticity high-ductility, the avalanche Rolling Stone tumbled is produced anti-
Active force, is effectively reduced impact energy, and energy-absorbing buffering layer further comprises thick prefabricated C15 concretes plate bed course, have stronger hardening
Intensity, it may have water proof drain function, acted on by the mutual cooperation of each cushion, effectively slow down avalanche Rolling Stone to lower end
The direct impact of back timber 6 is protected, reduces direct active force of the avalanche Rolling Stone to overall bridge, important guarantor is provided for bridge protection
Barrier, in order to adapt to different avalanche Rolling Stone geological disaster areas, each cushion according to circumstances can adjust thickness, to adapt to various rings
Border, it is that protective range is wider.
In order that draining is more unimpeded, in the utility model, the protection back timber 6 is obliquely installed, and is advantageous to drainpipe 10
Ponding is timely discharged, ensures the stabilization of safeguard structure.
The steadiness that lateral protection network 7 is installed plays vital effect to lateral protection, in the utility model, laterally
The upper and lower ends of protection network 7 are fixed in protection back timber 6 and main line beam body 4 by restrict card and swell fixture;The swell fixture
It is to promote expansion to produce friction bond stress using wedge gradient, reaches fixed effect, fixed effect is obvious, and rope card makes lateral anti-
Protecting wire net is connected with each other, and solid and reliable being fixed on of lateral protection network 7 is protected back timber 6 and main line beam by the fixation of swell fixture
On body 4, securely and reliably, stable basis is improved for the protection of lateral protection network, strengthens the stability of safeguard structure.
Lateral protection network can use wire rope net or ring network, and itself geometry can occur during rock-fall impact for ring network
Morphologic change, bigger energy absorption capability being shown, flexible and intensity is enough to absorb and disperses to be driven rock-fall impact energy, and
With bigger elastic working range, therefore the preferable lateral protection network uses ring network.
It is above specific embodiment of the present utility model, from implementation process as can be seen that bridge formation integral type safeguard structure,
By flexible and rigid double protection system, various avalanche Rolling Stones can be effectively coped with, protection reliability is high, and structure patience is good,
Safeguard structure can separate with bridge main body structure, make its scope of application wider, easy for construction, technical maturity.
Claims (6)
1. crane span structure integral type safeguard structure, including pile foundation (1), pile foundation (1) upper end is mounted with cushion cap (2), described to hold
Body supports platform (3) is provided with platform (2), main line beam body (4) is provided with the body supports platform (3), it is characterised in that
Protective frame trestle (5) is additionally provided with the cushion cap (2), the protective frame trestle (5) is located at the outer of body supports platform (3)
Side, is provided with protection back timber (6) on the protective frame trestle (5), and the protective frame trestle (5) is formed with protection back timber (6)
Frame structure, lateral protection network (7) is provided with the frame structure both sides, and lateral protection network (7) upper end is pushed up with protection
Beam (6) connects, and bottom is connected with main line beam body (4), described protection back timber (6) upper end is provided with buffering energy-absorbing layer (8), in institute
State protection back timber (6) upper surface surrounding and be provided with baffle plate (9).
2. crane span structure integral type safeguard structure according to claim 1, it is characterised in that described also including drainpipe (10)
Drainpipe (10) one end is embedded between protection back timber (6) and buffering energy-absorbing layer (8), and the other end extends to protection back timber (6) outside
Side.
3. crane span structure integral type safeguard structure according to claim 2, it is characterised in that the buffering energy-absorbing layer (8) is under
Thick ovum crushed rock base course, rubber for tire cushion, thick prefabricated C15 concretes plate bed course, rubber for tire cushion, thickness are laid in successively to upper
Prefabricated C15 concretes plate bed course, thick ovum rubble surface layer.
4. crane span structure integral type safeguard structure according to claim 3, it is characterised in that the protection back timber (6), which tilts, to be set
Put.
5. the crane span structure integral type safeguard structure according to any one claim in claims 1 to 3, it is characterised in that
Described lateral protection network (7) upper and lower ends are fixed on protection back timber (6) and main line beam body (4) by restrict card and swell fixture
On.
6. the crane span structure integral type safeguard structure according to any one claim in claims 1 to 3, it is characterised in that
The lateral protection network (7) uses ring network.
Priority Applications (1)
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CN201721042754.9U CN207109625U (en) | 2017-08-18 | 2017-08-18 | Crane span structure integral type safeguard structure |
Applications Claiming Priority (1)
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CN201721042754.9U CN207109625U (en) | 2017-08-18 | 2017-08-18 | Crane span structure integral type safeguard structure |
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CN207109625U true CN207109625U (en) | 2018-03-16 |
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CN201721042754.9U Active CN207109625U (en) | 2017-08-18 | 2017-08-18 | Crane span structure integral type safeguard structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108749650A (en) * | 2018-08-15 | 2018-11-06 | 中铁第四勘察设计院集团有限公司 | The safeguard structure of anti-high-voltage line broken string impact |
-
2017
- 2017-08-18 CN CN201721042754.9U patent/CN207109625U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108749650A (en) * | 2018-08-15 | 2018-11-06 | 中铁第四勘察设计院集团有限公司 | The safeguard structure of anti-high-voltage line broken string impact |
CN108749650B (en) * | 2018-08-15 | 2023-10-31 | 中铁第四勘察设计院集团有限公司 | Protection structure for preventing broken wire impact of high-voltage wire |
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Legal Events
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Song Lei Inventor after: He Lixin Inventor after: Jiang Jinsong Inventor after: Zhang Xiaoxu Inventor after: Zhong Changwei Inventor after: Long Baiquan Inventor before: Song Lei |