CN104652251A - Novel anti-drop-beam device - Google Patents
Novel anti-drop-beam device Download PDFInfo
- Publication number
- CN104652251A CN104652251A CN201510058435.6A CN201510058435A CN104652251A CN 104652251 A CN104652251 A CN 104652251A CN 201510058435 A CN201510058435 A CN 201510058435A CN 104652251 A CN104652251 A CN 104652251A
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- Prior art keywords
- drag
- fixing anchor
- line
- drop
- novel anti
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a novel anti-drop-beam device, and belongs to the technical field of an anti-drop-beam of a bridge. The device comprises an inhaul cable anti-drop-beam structure and a limit anti-drop-beam structure; in the inhaul cable anti-drop-beam structure, two fixed anchored plates are respectively fixed on two beam bodies, the two fixed anchored plates are connected through an inhaul cable, one end of the inhaul cable is connected on one fixed anchored plate through a rubber cushion, and the other end of the inhaul cable passes through another fixed anchored plate and then is connected with a friction energy consumption device and the lower ends of the two fixed anchored plates are fixedly connected with the limit anti-drop-beam structure; in the limit anti-drop-beam structure, the upper ends of two vertical anchor rods are respectively fixed at the lower ends of the two fixed anchored plates, and the lower ends of the two vertical anchor rods are respectively and fixedly connected with the two fixed anchored plates. According to the device provided by the invention, by adopting a way that the inhaul cable anti-drop-beam structure and the limit anti-drop-beam structure are combined, the stability of the bridge can be improved, the effects of buffering as well as damping and energy dissipation can be realized, and the secondary defense anti-drop-beam effect can be reached.
Description
Technical field
The invention belongs to bridge girder falling technical field, particularly a kind of anti-fall girder apparatus.
Background technology
Along with expanding economy, country also strengthens the construction dynamics of infrastructure, and bridge and construction work obtain development at a high speed, and China is just strided forward to " bridge power " by " bridge big country ".In protection against and mitigation of earthquake disasters work, lifeline engineering is an of paramount importance link, and bridge is one of lifeline engineering, as the transport hub most important thing especially, closely related with the life of people.
The destruction of earthquake can bring difficulty to Post disaster relief work, even causes traffic paralysis, causes secondary disaster, bring huge Loss of Life and property to the country and people.Therefore, after 512 Wenchuan earthquakes, special mission-will keep basic current requirement at violent earthquake axle casing be also been proposed to bridge, therefore bridge all adopts anti-fall girder apparatus when designing.And girder falling pattern mainly anchor bolt type, block type, steel bracket type etc. conventional at present, but limit effect is barely satisfactory, and shockproof effect is not good.
Summary of the invention
In order to overcome prior art above shortcomings part, the invention provides a kind of novel anti-fall girder apparatus, this device have employed the mode that drag-line girder falling structure and spacing girder falling structure combine, improve the stability of bridge, there is effect of buffering, damping power consumption, reach the girder falling effect of secondary defence.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of novel anti-fall girder apparatus, comprises two sections of beam bodies, and one end of described two sections of beam bodies is placed on pier body respectively, it is characterized in that: comprise drag-line girder falling structure and spacing girder falling structure, in drag-line girder falling structure, two fixing anchor slabs are individually fixed on two sections of beam bodies, drag-line is adopted to connect between two fixing anchor slabs, drag-line one end is connected on fixing anchor slab by rubber pad, rubber pad is provided with bonnet, the drag-line other end is connected with friction energy consuming device through after another fixing anchor slab, friction energy consuming device periphery is provided with sealing drum, sealing drum side and fixing anchor slab are fixed, the other end arranges snubber, drag-line is connected with baffle plate through after snubber, between snubber and baffle plate, spring is installed, nut and anchoring cartridge is disposed with outside baffle plate,
Described two fixing anchor slab lower ends are all fixedly connected with limited location girder falling structure, in described spacing girder falling structure, two vertical anchor pole upper ends are individually fixed in two fixing anchor slab lower ends, two vertical anchor pole lower ends are fixedly connected with two fixing anchor blocks respectively, and fixing anchor block is fixedly installed on pier body.
Described spring, baffle plate, nut and anchoring cartridge arranged outside have protective sleeve.
Be fixed with protective cover in the middle part of described vertical anchor pole, between protective cover and vertical anchor pole, be filled with spacing sponge.
Described fixing anchor block is fixedly installed on pier body by fixing anchor bar and hold-down nut.
Described drag-line is steel strand integral bundle extruding drag-line, comprises at least two anticorrosive steel strands of internal layer, at least two anticorrosive steel strands is wrapped in interior high-strength polyester band and outer hdpe layer sheath.
Described anticorrosive steel strand comprises PC steel strand, anticorrosion grease and PC steel strand, anticorrosion grease is wrapped in interior high density polyethylene (HDPE) sheath.
Described snubber comprises buffer plate and is built-in with the rubber pad of steel plate.
Described two fixing anchor slabs are individually fixed on two sections of beam bodies by rivet.
Compared with existing anti-fall girder apparatus, the beneficial effect of apparatus of the present invention is:
1, there is reliable girder falling function
Owing to present invention employs drag-line girder falling structure and spacing girder falling structure, comprise and connect drag-line, the anchor slab being arranged on drag-line two ends and snubber, baffle plate, buffer spring one Side Template be equipped with, these devices allow bridge main body structure to have a certain amount of amount of movement in a lateral direction, can prevent bridge to decline beam in geological process.Described spacing girder falling structure is primarily of the formation such as vertical anchor pole, protective sleeve, mooring anchor be fast; buffering sponge is filled between vertical anchor pole and protective sleeve; therefore under the bridge construction prerequisite of connection bridge top and the bottom; top and the bottom structure can also be allowed to have certain relative shift, and then restrainer occur.
2, there is the function of buffering, damping power consumption, raising bearing capacity
Because snubber of the present invention is primarily of buffer plate and the high-damping rubber pad composition being built-in with steel plate, wherein connection the stressed of drag-line can be delivered on high-damping rubber pad by buffer plate, and the steel plate in this high-damping rubber pad can improve the integral rigidity of snubber, make its effectively supporting connection drag-line, and the friction energy consuming device in sealing drum can absorb the energy of bridge vibration, the ability of bridge elastic reset given by buffer spring, improve the Seismic Bearing Capacity of bridge, the anti-fall girder apparatus of this invention is made to have good buffering, damping is consumed energy, improve the ability of bearing capacity.
Accompanying drawing explanation
Fig. 1 is that one falls beam inefficacy Multistage Control apparatus structure schematic diagram
Fig. 2 is the structural representation of device installment state in Fig. 1
Fig. 3 is vertical anchor structure schematic diagram in Fig. 1
Fig. 4 fixes anchor block perspective view in Fig. 1
Fig. 5 fixes the right TV structure schematic diagram of anchor block in Fig. 1
Fig. 6 fixes anchor block in Fig. 1 to face structural representation
Fig. 7 fixes anchor block plan structure schematic diagram in Fig. 1
In figure: 1, anchoring cartridge, 2, nut, 3, baffle plate, 4, spring; 5, snubber, 6, friction energy consuming device, 7, sealing drum, 8, rivet; 9, drag-line is connected, 10, fixing anchor slab, 11, rubber pad; 12, bonnet, 13, protective sleeve, 14, vertical anchor pole; 15, spacing sponge, 16, protective cover, 17, fixing anchor block; 18, fixing anchor bar, 19, hold-down nut, 20, Liang Ti, 21 pier bodies.
Detailed description of the invention
Describe the present invention in detail below in conjunction with specific embodiment and accompanying drawing, but the present invention is not limited to specific embodiment.
Embodiment 1
The novel anti-fall girder apparatus of one as shown in figs. 1-7, the one end comprising two sections of beam bodies, 20, two sections of beam bodies is placed on pier body 21 respectively, comprises drag-line girder falling structure and spacing girder falling structure, in drag-line girder falling structure, two fixing anchor slabs 10 are individually fixed on two sections of beam bodies 20 by rivet 8, drag-line 9 is adopted to connect between two fixing anchor slabs, drag-line one end is connected on fixing anchor slab by high-damping rubber pad 11, rubber pad is provided with bonnet 12, the drag-line other end is connected with friction energy consuming device 6 through after another fixing anchor slab, friction energy consuming device 6 periphery is provided with sealing drum 7, sealing drum side and fixing anchor slab are fixed, the other end is arranged snubber 5, drag-line is connected with baffle plate through after snubber, spring 4 is installed between snubber and baffle plate 3, nut 2 and anchoring cartridge 1 is disposed with outside baffle plate, spring, baffle plate, nut and anchoring cartridge arranged outside have protective sleeve 13.Drag-line 9 is steel strand integral bundle extruding drag-line, comprise two anticorrosive steel strands of internal layer, two anticorrosive steel strands are wrapped in interior high-strength polyester band and outer hdpe layer sheath, anticorrosive steel strand comprises PC steel strand, anticorrosion grease and PC steel strand, anticorrosion grease is wrapped in interior high density polyethylene (HDPE) sheath.
Snubber 5 comprises buffer plate and is built-in with the high-damping rubber pad of steel plate.
Two fixing anchor slab lower ends are all fixedly connected with limited location girder falling structure, in spacing girder falling structure, two vertical anchor pole 14 upper ends are individually fixed in two fixing anchor slab lower ends, two vertical anchor pole lower ends respectively anchor block 17 fixing with two are fixedly connected with, fixing anchor block is fixedly installed on pier body, fill concrete in fixing anchor block.Be fixed with protective cover 16 in the middle part of vertical anchor pole, between protective cover and vertical anchor pole, be filled with spacing sponge 15.Fixing anchor block is fixedly installed on pier body 21 by fixing anchor bar 18 and hold-down nut 19.
Embodiment 2
The novel anti-fall girder apparatus of one as shown in figs. 1-7, the one end comprising two sections of beam bodies, 20, two sections of beam bodies is placed on pier body 21 respectively, comprises drag-line girder falling structure and spacing girder falling structure, in drag-line girder falling structure, two fixing anchor slabs 10 are individually fixed on two sections of beam bodies 20 by rivet 8, drag-line 9 is adopted to connect between two fixing anchor slabs, drag-line one end is connected on fixing anchor slab by high-damping rubber pad 11, rubber pad is provided with bonnet 12, the drag-line other end is connected with friction energy consuming device 6 through after another fixing anchor slab, friction energy consuming device 6 periphery is provided with sealing drum 7, sealing drum side and fixing anchor slab are fixed, the other end is arranged snubber 5, drag-line is connected with baffle plate through after snubber, spring 4 is installed between snubber and baffle plate 3, nut 2 and anchoring cartridge 1 is disposed with outside baffle plate, spring, baffle plate, nut and anchoring cartridge arranged outside have protective sleeve 13.
Drag-line 9 is steel strand integral bundle extruding drag-line, comprise the six roots of sensation anticorrosive steel strand of internal layer, six roots of sensation anticorrosive steel strand be wrapped in interior high-strength polyester band and outer hdpe layer sheath, anticorrosive steel strand comprises PC steel strand, anticorrosion grease and PC steel strand, anticorrosion grease is wrapped in interior high density polyethylene (HDPE) sheath.
Snubber 5 comprises buffer plate and is built-in with the high-damping rubber pad of steel plate.
Two fixing anchor slab lower ends are all fixedly connected with limited location girder falling structure, in spacing girder falling structure, two vertical anchor pole 14 upper ends are individually fixed in two fixing anchor slab lower ends, two vertical anchor pole lower ends respectively anchor block 17 fixing with two are fixedly connected with, fixing anchor block is fixedly installed on pier body, fill concrete in fixing anchor block.Be fixed with protective cover 16 in the middle part of vertical anchor pole, between protective cover and vertical anchor pole, be filled with spacing sponge 15.Fixing anchor block is fixedly installed on pier body 21 by fixing anchor bar 18 and hold-down nut 19.
Embodiment 3
The novel anti-fall girder apparatus of one as shown in figs. 1-7, the one end comprising two sections of beam bodies, 20, two sections of beam bodies is placed on pier body 21 respectively, comprises drag-line girder falling structure and spacing girder falling structure, in drag-line girder falling structure, two fixing anchor slabs 10 are individually fixed on two sections of beam bodies 20 by rivet 8, drag-line 9 is adopted to connect between two fixing anchor slabs, drag-line one end is connected on fixing anchor slab by high-damping rubber pad 11, , rubber pad is provided with bonnet 12, the drag-line other end is connected with friction energy consuming device 6 through after another fixing anchor slab, friction energy consuming device 6 periphery is provided with sealing drum 7, sealing drum side and fixing anchor slab are fixed, the other end is arranged snubber 5, drag-line is connected with baffle plate through after snubber, spring 4 is installed between snubber and baffle plate 3, nut 2 and anchoring cartridge 1 is disposed with outside baffle plate, spring, baffle plate, nut and anchoring cartridge arranged outside have protective sleeve 13.
Drag-line 9 is steel strand integral bundle extruding drag-line, comprise 12 anticorrosive steel strands of internal layer, 12 anticorrosive steel strands are wrapped in interior high-strength polyester band and outer hdpe layer sheath, anticorrosive steel strand comprises PC steel strand, anticorrosion grease and PC steel strand, anticorrosion grease is wrapped in interior high density polyethylene (HDPE) sheath.
Snubber 5 comprises buffer plate and is built-in with the high-damping rubber pad of steel plate.
Two fixing anchor slab lower ends are all fixedly connected with limited location girder falling structure, in spacing girder falling structure, two vertical anchor pole 14 upper ends are individually fixed in two fixing anchor slab lower ends, two vertical anchor pole lower ends respectively anchor block 17 fixing with two are fixedly connected with, fixing anchor block is fixedly installed on pier body, fill concrete in fixing anchor block.Be fixed with protective cover 16 in the middle part of vertical anchor pole, between protective cover and vertical anchor pole, be filled with spacing sponge 15.Fixing anchor block is fixedly installed on pier body 21 by fixing anchor bar 18 and hold-down nut 19.
Claims (8)
1. a novel anti-fall girder apparatus, comprises two sections of beam bodies (20), and one end of described two sections of beam bodies is placed on pier body (21) respectively, it is characterized in that: comprise drag-line girder falling structure and spacing girder falling structure, in drag-line girder falling structure, two fixing anchor slabs (10) are individually fixed on two sections of beam bodies (20), drag-line (9) is adopted to connect between two fixing anchor slabs, drag-line one end is connected on fixing anchor slab by rubber pad (11), rubber pad is provided with bonnet (12), the drag-line other end is connected with friction energy consuming device (6) through after another fixing anchor slab, friction energy consuming device (6) periphery is provided with sealing drum (7), sealing drum side and fixing anchor slab are fixed, the other end is arranged snubber (5), drag-line is connected with baffle plate (3) through after snubber, spring (4) is installed between snubber and baffle plate, nut (2) and anchoring cartridge (1) is disposed with outside baffle plate,
Described two fixing anchor slab lower ends are all fixedly connected with limited location girder falling structure, in described spacing girder falling structure, two vertical anchor pole (14) upper ends are individually fixed in two fixing anchor slab lower ends, two vertical anchor pole lower ends are fixedly connected with two fixing anchor blocks (17) respectively, and fixing anchor block is fixedly installed on pier body.
2. the novel anti-fall girder apparatus of one according to claim 1, is characterized in that: described spring, baffle plate, nut and anchoring cartridge arranged outside have protective sleeve (13).
3. the novel anti-fall girder apparatus of one according to claim 1, is characterized in that: be fixed with protective cover (16) in the middle part of described vertical anchor pole, is filled with spacing sponge (15) between protective cover and vertical anchor pole.
4. the novel anti-fall girder apparatus of one according to claim 1, is characterized in that: described fixing anchor block is fixedly installed on pier body by fixing anchor bar (18) and hold-down nut (19).
5. the novel anti-fall girder apparatus of one according to claim 1, it is characterized in that: described drag-line (9) is steel strand integral bundle extruding drag-line, comprises at least two anticorrosive steel strands of internal layer, at least two anticorrosive steel strands is wrapped in interior high-strength polyester band and outer hdpe layer sheath.
6. the novel anti-fall girder apparatus of one according to claim 5, is characterized in that: described anticorrosive steel strand comprises PC steel strand, anticorrosion grease and PC steel strand, anticorrosion grease are wrapped in interior high density polyethylene (HDPE) sheath.
7. the novel anti-fall girder apparatus of one according to claim 1, is characterized in that: described snubber (5) comprises buffer plate and is built-in with the rubber pad of steel plate.
8. the novel anti-fall girder apparatus of one according to claim 1, is characterized in that: described two fixing anchor slabs (10) are individually fixed on two sections of beam bodies (20) by rivet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058435.6A CN104652251A (en) | 2015-02-04 | 2015-02-04 | Novel anti-drop-beam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058435.6A CN104652251A (en) | 2015-02-04 | 2015-02-04 | Novel anti-drop-beam device |
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| CN104652251A true CN104652251A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510058435.6A Pending CN104652251A (en) | 2015-02-04 | 2015-02-04 | Novel anti-drop-beam device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625163A (en) * | 2016-01-08 | 2016-06-01 | 苏交科集团股份有限公司 | Beam falling prevention device |
| CN105862571A (en) * | 2016-05-27 | 2016-08-17 | 长安大学 | Bridge anti-seismic and anti-overturning construction and bridge anti-seismic and anti-overturning method |
| CN106592413A (en) * | 2016-12-23 | 2017-04-26 | 大连理工大学 | Bridge damping control system combing high-damping rubber with shape memory alloy |
| CN107100081A (en) * | 2017-06-15 | 2017-08-29 | 中铁十六局集团第三工程有限公司 | A kind of Sarasota crossbeam installs supporting construction |
| CN107558357A (en) * | 2017-09-06 | 2018-01-09 | 昂徕博智能科技（昆山）有限公司 | The bridge superstructure and construction method of a kind of power consumption |
| CN108385511A (en) * | 2018-03-13 | 2018-08-10 | 王彩花 | Anti- head-on collision and fall girder apparatus and bridge structure |
| CN108677758A (en) * | 2018-05-10 | 2018-10-19 | 杭州市市政工程集团有限公司 | The antidumping anti-fall girder apparatus and its construction method that existing bridge is added |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN113944097A (en) * | 2021-10-26 | 2022-01-18 | 北京工业大学 | Friction energy consumption-self-reset beam falling prevention device |
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| JPH1060824A (en) * | 1996-08-21 | 1998-03-03 | Murakami Kogyo Kk | Bridge-drop prevention device of concrete bridge and construction method thereof |
| JP2001303517A (en) * | 2000-04-19 | 2001-10-31 | Tokai Rubber Ind Ltd | Shift restriction device for bridge |
| JP2007262746A (en) * | 2006-03-28 | 2007-10-11 | Asahi Engineering Kk | Bridge fall preventing structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625163A (en) * | 2016-01-08 | 2016-06-01 | 苏交科集团股份有限公司 | Beam falling prevention device |
| CN105862571A (en) * | 2016-05-27 | 2016-08-17 | 长安大学 | Bridge anti-seismic and anti-overturning construction and bridge anti-seismic and anti-overturning method |
| CN106592413A (en) * | 2016-12-23 | 2017-04-26 | 大连理工大学 | Bridge damping control system combing high-damping rubber with shape memory alloy |
| CN106592413B (en) * | 2016-12-23 | 2018-02-16 | 大连理工大学 | The Bridge Seismic control system that a kind of high-damping rubber combines with marmem |
| CN107100081A (en) * | 2017-06-15 | 2017-08-29 | 中铁十六局集团第三工程有限公司 | A kind of Sarasota crossbeam installs supporting construction |
| CN107558357A (en) * | 2017-09-06 | 2018-01-09 | 昂徕博智能科技（昆山）有限公司 | The bridge superstructure and construction method of a kind of power consumption |
| CN108385511A (en) * | 2018-03-13 | 2018-08-10 | 王彩花 | Anti- head-on collision and fall girder apparatus and bridge structure |
| CN108677758A (en) * | 2018-05-10 | 2018-10-19 | 杭州市市政工程集团有限公司 | The antidumping anti-fall girder apparatus and its construction method that existing bridge is added |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN113944097A (en) * | 2021-10-26 | 2022-01-18 | 北京工业大学 | Friction energy consumption-self-reset beam falling prevention device |
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Application publication date: 20150527 |