CN204000611U - A kind of vertical amount of decrease based on fail safety design is from early warning type boom system - Google Patents
A kind of vertical amount of decrease based on fail safety design is from early warning type boom system Download PDFInfo
- Publication number
- CN204000611U CN204000611U CN201420027290.4U CN201420027290U CN204000611U CN 204000611 U CN204000611 U CN 204000611U CN 201420027290 U CN201420027290 U CN 201420027290U CN 204000611 U CN204000611 U CN 204000611U
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- suspension rod
- early warning
- anchor
- safe
- boom system
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- 238000013461 design Methods 0.000 title claims abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 96
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 239000005060 rubber Substances 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 7
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Abstract
The utility model relates to a kind of vertical amount of decrease based on fail safety design from early warning type boom system, belongs to communications and transportation-bridges and culverts field of engineering technology.The utility model comprises a safe suspension rod, an early warning suspension rod; Wherein safe suspension rod and early warning suspension rod direction across bridge Parallel Symmetric are arranged.The utility model by increasing rubber pad above the anchor plate of safe suspension rod, can complete well the task of reducing safe suspension rod stress amplitude, make between " safe suspension rod " and " early warning suspension rod " that real to form fatigue life poor, can really realize the effect from early warning; By the continuous firing of " safe suspension rod ", make the replacing of the suspension rod simple possible that becomes, the suspension rod that is conducive to the suspension rod of centering lower bearing arch bridge, the drag-line of cable stayed bridge and suspension bridge detects maintenance, and do not need all suspension rods of disposable replacing, only the early warning suspension rod of fracture need to be changed; Simple in structure, cost is low, feasibility is strong.
Description
Technical field
The utility model relates to a kind of vertical amount of decrease based on fail safety design from early warning type boom system, belongs to communications and transportation-bridges and culverts field of engineering technology.
Background technology
At present, known boom system is to be spliced by hoist cable, anchor head, dynamic mount and snubber anchoring.At hoist cable anchor mouth place, one section of hot rolled seamless steel tube is set, is connected with anchor head, packing matcrial between steel pipe and hoist cable, to improve the bending fatigue impact of hoist cable.
But the buffer of a lot of suspension rods only plays partial buffer effect to horizontal bending fatigue, wind-induced vibration response, substantially cannot slow down the fatigue damage of vertical alternating stresses to suspension rod.Vehicular load makes bridge deck and boom system exist the fatigue stress of alternation according to certain rules long-term operation stage at bridge, and structure fatigue damage degree is played to the amplitude of fatigue stress exactly of critical impact, it is that safety cable is set that general boom system is treated the solution that problems takes, even vein type hanging rod structure formation alternation internal force is poor to rely on two suspension rods, many suspension rods, but suspension rod internal force is poor, and not to be equal to life-span of suspension rod poor, cannot fundamentally realize the effect of safe early warning.On the other hand, suspender replacement technology is now very single, by auxiliary stretch-draw, the suspension rod power at suspension centre place is transformed on auxiliary tensioning equipment, change again, it is current that the method is time-consuming, effort, cost height even affect vehicular traffic sometimes, and the utility model can be realized safe early warning and the simple and easy replacing of suspension rod in advance simultaneously, effectively avoids occurring suspension rod suddenly disconnected, and to bridge, detecting maintenance is that suspender replacement work causes difficulty, easily causes serious accident.
Summary of the invention
The utility model provides a kind of vertical amount of decrease based on fail safety design from early warning type boom system, and for overcoming, existing boom system can not be realized in advance safe early warning and suspension rod can not simple easily changeable deficiency.
The technical solution of the utility model is: a kind of vertical amount of decrease based on fail safety design, from early warning type boom system, comprises a safe suspension rod, an early warning suspension rod; Wherein safe suspension rod and early warning suspension rod direction across bridge Parallel Symmetric are arranged.
Described safe suspension rod and early warning suspension rod all comprise anchor pre-structure, pull bar 3, anchor head structure; Wherein anchor head structure and the acting in conjunction of anchor pre-structure are anchored in bridge deck by pull bar 3.
The anchor pre-structure of described safe suspension rod and early warning suspension rod all comprises anchor cup 1, steel anchor box 2, snubber 9; Wherein pull bar 3 scatters and enters steel anchor box 2 in anchor cup 1, and snubber 9 is between anchor cup 1 and pull bar 3.
The anchor head structure of described safe suspension rod comprises rubber pad 4, anchor plate 5, spherical hinge 6, nut 7, protective cover 8; Wherein rubber pad 4, anchor plate 5, spherical hinge 6, nut 7 are assembled in turn with protective cover 8.
The anchor head structure of described early warning suspension rod comprises anchor plate 5, spherical hinge 6, nut 7, protective cover 8; Wherein anchor plate 5, spherical hinge 6, nut 7 are assembled in turn with protective cover 8.
The course of work of the present utility model is:
Suspension rod is designed to parallel double suspension rod system, in parallel double suspension rod system, chooses a suspension rod as safe suspension rod, another root is as the early warning suspension rod based on fail safety theory.The sectional dimension of safe suspension rod is (concrete: the rapid disconnected stress that safe suspension rod causes because early warning suspension rod destroys is 1.7 ~ 2.0 times under normal operating condition by rapid disconnected percussion calculative determination, therefore the sectional dimension of early warning suspension rod and safe suspension rod is differentiated), when construction assembling, easily recognize.
In the anchor system of suspension rod and stiff girder, ground tackle (comprising anchor pre-structure and anchor head structure) and bridge deck are connected to each other, between bridge deck bottom and the anchor plate 5 of safe suspension rod, rubber pad 4 is set, rubber pad 4 adopts elasticity sulfuration high-damping rubbers (wide in order to improve the use temperature of damping material, the utility model adopts two kinds and has different glass temperature, but the macromolecular material 9050A-C that can mutually mix, use certain process to be admixed to carry out mixing together, after over cure, make the wide temperate zone high-damping rubber material with using value), the vertical applied force of buffering suspension rod, thereby reduce the Fatigue Stress Amplitude of safe suspension rod, and for early warning suspension rod, do not establish rubber pad 4, because its stress amplitude does not reduce, thereby make first to arrive fatigue life and produce destruction for the suspension rod of early warning, and safe suspension rod can continue to bear load, thereby reached the object of safe early warning, meanwhile considered the impact of rapid disconnected impact stress, during early warning suspension rod damage inactivation, safe suspension rod still can normally be worked separately.
In addition, utilize the shock-absorbing capacity of high-damping rubber material, reduce the stress amplitude of early warning suspension rod, thereby increase the service life.Meanwhile, due to the normal work of safe suspension rod, provide convenience also to replacing early warning suspension rod, only need to change new suspension rod, again an anchoring.This has just reached can change the object of suspension rod convenient, safely.
The elasticity sulfuration high-damping rubber operating temperature range adopting is made at-7 ℃-50 ℃, the high-damping rubber material of structural loss factor η >=0.8.
The beneficial effects of the utility model are:
By rubber pad is set above safe suspension rod anchor plate, (rubber pad adopts wide temperate zone high-damping rubber material, it can extremely normally worked) under rugged environment, can complete well the task of reducing safe suspension rod stress amplitude, make between " safe suspension rod " and " early warning suspension rod " that real to form fatigue life poor, can really realize the effect from early warning; By the continuous firing of " safe suspension rod ", make the replacing of the suspension rod simple possible that becomes, the suspension rod that is conducive to the suspension rod of centering lower bearing arch bridge, the drag-line of cable stayed bridge and suspension bridge detects maintenance, and do not need all suspension rods of disposable replacing, only the early warning suspension rod of fracture need to be changed; Simple in structure, cost is low, feasibility is strong, can save a large amount of bridge maintenance funds.
Accompanying drawing explanation
Fig. 1 is anchoring structure figure of the present utility model;
Fig. 2 is the little master drawing in AA of the present utility model cross section;
Fig. 3 is I-I sectional drawing of the present utility model;
Each label in figure: 1 is that anchor cup, 2 is that steel anchor box, 3 is that pull bar, 4 is that rubber pad, 5 is that anchor plate, 6 is that spherical hinge, 7 is that nut, 8 is that protective cover, 9 is snubber.
The specific embodiment
Embodiment 1: as Figure 1-3, a kind of vertical amount of decrease based on fail safety design, from early warning type boom system, comprises a safe suspension rod, an early warning suspension rod; Wherein safe suspension rod and early warning suspension rod direction across bridge Parallel Symmetric are arranged.
Described safe suspension rod and early warning suspension rod all comprise anchor pre-structure, pull bar 3, anchor head structure; Wherein anchor head structure and the acting in conjunction of anchor pre-structure are anchored in bridge deck by pull bar 3.
The anchor pre-structure of described safe suspension rod and early warning suspension rod all comprises anchor cup 1, steel anchor box 2, snubber 9; Wherein pull bar 3 scatters and enters steel anchor box 2 in anchor cup 1, and snubber 9 is between anchor cup 1 and pull bar 3.
The anchor head structure of described safe suspension rod comprises rubber pad 4, anchor plate 5, spherical hinge 6, nut 7, protective cover 8; Wherein rubber pad 4, anchor plate 5, spherical hinge 6, nut 7 are assembled in turn with protective cover 8.
The anchor head structure of described early warning suspension rod comprises anchor plate 5, spherical hinge 6, nut 7, protective cover 8; Wherein anchor plate 5, spherical hinge 6, nut 7 are assembled in turn with protective cover 8.
Embodiment 2: as Figure 1-3, a kind of vertical amount of decrease based on fail safety design, from early warning type boom system, comprises a safe suspension rod, an early warning suspension rod; Wherein safe suspension rod and early warning suspension rod direction across bridge Parallel Symmetric are arranged.
By reference to the accompanying drawings the specific embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (5)
1. the vertical amount of decrease based on fail safety design, from an early warning type boom system, is characterized in that: comprise a safe suspension rod, an early warning suspension rod; Wherein safe suspension rod and early warning suspension rod direction across bridge Parallel Symmetric are arranged.
2. the vertical amount of decrease based on fail safety design according to claim 1, from early warning type boom system, is characterized in that: described safe suspension rod and early warning suspension rod all comprise anchor pre-structure, pull bar (3), anchor head structure; Wherein anchor head structure and the acting in conjunction of anchor pre-structure are anchored in bridge deck by pull bar (3).
3. the vertical amount of decrease based on fail safety design according to claim 2, from early warning type boom system, is characterized in that: the anchor pre-structure of described safe suspension rod and early warning suspension rod all comprises anchor cup (1), steel anchor box (2), snubber (9); Wherein pull bar (3) scatters and enters steel anchor box (2) in anchor cup (1), and snubber (9) is positioned between anchor cup (1) and pull bar (3).
4. the vertical amount of decrease based on fail safety design according to claim 2, from early warning type boom system, is characterized in that: the anchor head structure of described safe suspension rod comprises rubber pad (4), anchor plate (5), spherical hinge (6), nut (7), protective cover (8); Wherein rubber pad (4), anchor plate (5), spherical hinge (6), nut (7) are assembled in turn with protective cover (8).
5. the vertical amount of decrease based on fail safety design according to claim 2, from early warning type boom system, is characterized in that: the anchor head structure of described early warning suspension rod comprises anchor plate (5), spherical hinge (6), nut (7), protective cover (8); Wherein anchor plate (5), spherical hinge (6), nut (7) are assembled in turn with protective cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027290.4U CN204000611U (en) | 2014-01-17 | 2014-01-17 | A kind of vertical amount of decrease based on fail safety design is from early warning type boom system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027290.4U CN204000611U (en) | 2014-01-17 | 2014-01-17 | A kind of vertical amount of decrease based on fail safety design is from early warning type boom system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204000611U true CN204000611U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420027290.4U Expired - Fee Related CN204000611U (en) | 2014-01-17 | 2014-01-17 | A kind of vertical amount of decrease based on fail safety design is from early warning type boom system |
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| Country | Link |
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| CN (1) | CN204000611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098079A (en) * | 2018-09-10 | 2018-12-28 | 昆明理工大学 | A method of boom system and determining sunpender sectional area based on fail safety theory |
| CN113235436A (en) * | 2021-04-28 | 2021-08-10 | 中交二航局第二工程有限公司 | Temporary inhaul cable construction method suitable for cable-first and beam-second construction of suspension bridge |
-
2014
- 2014-01-17 CN CN201420027290.4U patent/CN204000611U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098079A (en) * | 2018-09-10 | 2018-12-28 | 昆明理工大学 | A method of boom system and determining sunpender sectional area based on fail safety theory |
| CN113235436A (en) * | 2021-04-28 | 2021-08-10 | 中交二航局第二工程有限公司 | Temporary inhaul cable construction method suitable for cable-first and beam-second construction of suspension bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |