CN203890859U - Double J type steel damping device - Google Patents
Double J type steel damping device Download PDFInfo
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- CN203890859U CN203890859U CN201420116163.1U CN201420116163U CN203890859U CN 203890859 U CN203890859 U CN 203890859U CN 201420116163 U CN201420116163 U CN 201420116163U CN 203890859 U CN203890859 U CN 203890859U
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- steel damping
- damping element
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- 238000013016 damping Methods 0.000 title claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 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
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a double J type steel damping device. The double J type steel damping device comprises an upper connection plate, a double J type damping element and a lower connection plate, wherein the upper connection plate is connected with a beam body by utilizing an anchorage rod through an upper connection hole; the double J type damping element passes through a slide block in a vertical guide groove of the first end and is connected with the upper connection plate through a guide rod; side baffles are mounted at the outer side and the gap of the double J type steel damping device so as to keep the stability of the system when the plurality of double J type steel damping devices are used; the lower connection plate is connected with the second end of the double J type damping element by utilizing a pin shaft through a lower supporting plate. The double J type steel damping device is simple and reliable in structure; a force transmission path and a force transmission manner are clear; the double J type steel damping device has the functions of limiting transverse and vertical relative displacement of the beam body and a bridge pier, and dissipating earthquake energy; a guide rod sliding groove type design simplifies the connection structure and does not generate adverse effects on the normal work of a bridge under a non-earthquake state, so that the double J type steel damping device has the positive meanings on enhancing the safety of the bridge.
Description
Technical field
The utility model device relates to a kind of steel damping unit that can effectively control direction across bridge and vertical displacement between beam body and pier top, belongs to bridge security field.
Background technology
In modern bridge design, for protecting the stability of its work, particularly the bridge under the factor effects such as earthquake is effectively protected, existing multiple damper device is devised, and is successfully applied in bridge construction.
In existing steel damping unit, partial devices, as E shaped steel, although the damping units such as C shaped steel and ε shaped steel have possessed certain damping energy consumption effect, but the free clearance between its device is little, cannot adapt to for the beam body normal deformation under some specific condition, although and steel damping unit as horizontal in girder falling its longitudinally there is good sliding properties, laterally also can design certain free clearance, but connect by guide-track groove between upper plate and damping element, structure more complicated, need a large amount of welding procedures that use, processing is got up pretty troublesome and stock utilization is not high.
Utilize the design of guide groove slide block type, in conjunction with a kind of Novel steel damping device that possesses direction across bridge and vertical power consumption of feature design of damping element, both played the damping power consumption effect of steel damping unit, and simplified again it and connect structure, significant for the safety of promoting bridge.
Utility model content
The utility model provides a kind of pair of J shaped steel damping unit, and this device seismic energy that can effectively dissipate suppresses bridge excessive direction across bridge and vertical displacement occur, and keeps bridge to tie up to stable under seismic condition.
The utility model is achieved through the following technical solutions: a kind of two J shaped steel damping units, is characterized in that: comprise upper junction plate, lower connecting plate, at least one two J type damping element, guide peg, upper backup pad, lower supporting plate; On described upper junction plate, offer connecting hole, described upper junction plate utilizes anchorage rod to be connected with beam body by described upper connecting hole; Described upper junction plate and upper backup pad are interconnected and fixed;
Described pair of J type damping element first end offers vertical guide groove; In the vertical guide groove of described pair of J type damping element, be provided with slide block, described slide block can vertically be free to slide in the reserved stroke of described vertical guide groove, in the time exceeding the trip, can suppress the larger vertical displacement of generation between pier beam, described slide block does not allow direction across bridge relative motion occurs in described vertical guide groove except assemblage gap, to retrain the direction across bridge displacement between pier beam in seismic process;
Described slide block passes via described guide peg, and the described pair of J type damping element is along longitudinally the arranging of described guide peg, described guide peg can freely rotate and longitudinal sliding motion in described slide block; Described guide peg two ends are fixed on described upper junction plate by described upper backup pad;
Described pair of J type damping element the second end uses connecting pin to be connected with described lower supporting plate; Described lower connecting plate and lower supporting plate are interconnected and fixed; On described lower connecting plate, offer lower connecting hole, described lower connecting plate is connected with bridge pier by anchorage rod by described lower connecting hole.
Further, described pair of J type damping element is that the plate Symmetric Composite that two flat shapes are J type forms, and one end of two J type damping elements is constructed finally and is connected with beam body by connection, and the other end is constructed finally and is connected with bridge pier by connection.
Further, between described slide block and guide peg and vertical guide groove, be provided with gap, can either adapt to the distortion/position needs under beam body normal running conditions, can the normal work under non-earthquake state not have a negative impact to bridge simultaneously.
Further, described slide block is less than vertical gap with the lateral clearance of vertical guide groove, more can adapt to the distortion/position needs under beam body normal running conditions, can the normal work under non-earthquake state not have a negative impact to bridge simultaneously.
Further, in order to ensure each pair, J type damping element is stressed unanimously, distortion is synchronous, in two J type damping elements outside and gap location, side shield is installed.
Further, upper backup pad, lower supporting plate can be arranged on corresponding junction plate by modes such as welding, insertions.
By technique scheme, major advantage of the present utility model is: simple and reliable for structure, operating principle is clear and definite, have prevent beam body vertical bridge to vertical both direction on there is over-large displacement and the function of the extraneous input energy that dissipates.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the A-A cross-sectional view of Fig. 2;
Fig. 4 is the plan structure schematic diagram of Fig. 1;
Fig. 5 is two J type damping element structural representations.
Fig. 6 is Fig. 1 device mounting arrangements schematic diagram.
In figure: 1. pair J type damping element, 2. upper junction plate, 3. upper backup pad, 4. guide peg, 5. side shield, 6. vertical guide groove, 7. slide block, 8. lower connecting plate, 9. lower supporting plate, 10. connecting pin, connecting hole on 11., 12. times connecting holes.
Detailed description of the invention
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
As shown in Figures 1 to 5, a kind of two J shaped steel damping units, comprise upper junction plate 2, utilize anchorage rod to be connected with bridge by upper connecting hole 11; Four two J type damping element 1 longitudinally arranging along guide peg 4, the quantity of two J type damping elements can be adjusted according to concrete operating mode, two J type damping elements 1 are that the steel plate Symmetric Composite that two flat shapes are J type forms, two J type damping element 1 first end, with vertical guide groove 6, is provided with side shield 5 in two J type damping elements outside and gap location; Slide block 7 can being vertically free to slide at vertical guide groove 6; Guide peg 4 can be interior along himself longitudinal sliding motion and freely rotate at slide block 7, and two ends are fixed on upper junction plate 2 by upper backup pad 3; The second end of two J type damping elements 1 is connected with lower supporting plate 9 by connecting pin 10, thereby is fixed on lower connecting plate 8; Lower connecting plate 8, by the lower connecting hole 12 on it, utilizes anchorage rod to be connected with bridge pier.
Under normal circumstances, owing between slide block 7 and guide peg 4 and vertical guide groove 6, suitable gap being all set, when vertical bridge in scope of design occurring when with vertical displacement between beam body and pier top, bridge system is not produced to remarkable counter-force by the slip of slide block 7 and guide peg 4 to discharge above-mentioned displacement.
Especially, in the time producing significant longitudinal strain (position) under the effect of the factors such as Liang Ti expands with heat and contract with cold, creeps, due to slide block 7 and the existence of guide peg 4 intermediate gaps, guide peg 4 can produce comparatively freely and slide with slide block 7 under the drive of beam body.
When under the impact in factors such as earthquakes, when gap between guide peg 4, vertical guide groove 6 and slide block 7 is less than the horizontal relative displacement of beam body and Dun Ding, under the drive of beam body, upper junction plate 2 passes through upper backup pad 3 with guide peg 4 transverse movements, and then makes two J type damping elements produce elastic-plastic deformations with dissipation seismic energy.
Especially, due to the existence of vertical guide groove 6, can limit slide block 7 and the vertical displacement between it, in the time that the relative displacement of beam body and Dun Ding generation is greater than the gap of the two, the vertical motion of slide block 7 is subject to the restriction of vertical guide groove 6, thereby cause that two J type damping elements also deform in the effect of vertical force, and then reach the object that suppresses vertical relative displacement.
Especially, this device is along longitudinal stable of guide peg 4 when keeping the multiple pairs of J type damping elements to use, and J type damping element is stressed evenly, distortion is consistent to make each pair, need to certain thickness side shield 5 be installed in the outside of two J type damping elements and gap location.
Especially, be connected by circular guide peg 4 due between upper junction plate 2 and two J type damping elements 1, the upper junction plate 1 of this device can rotate according to the concrete shape of beam body and joint face angle of inclination, can meet the installation on any clinoplain within the scope of certain angle.
As shown in Figure 6, as of two J shaped steel damping units, embodiment is specifically set, is provided with the two J shaped steel damping units of quadruplet to set up the restriction relation between pier beam at Dun Ding.
According to of the present utility model pair of J shaped steel damping unit, there is following beneficial effect:
1, two J type damping elements of this device at direction across bridge with vertically have good plastic deformation ability, are avoided occurring stress and are concentrated, and can meet the requirement of energy-dissipating and shock-absorbing.
2, the guide groove sliding block type structure of this device can either effectively play the effect of direction across bridge and vertical power transmission, can adapt to distortion (position) needs under beam body normal running conditions, can not have a negative impact to normal work under the non-earthquake state of bridge again.
3, be connected by circular guide peg due between upper junction plate and two J type damping elements, this device meets the installation between any two clinoplains within the scope of certain angle.
4, this apparatus structure is simple, easy for installation, has simplified the connected mode of steel damping unit and bridge construction, is easy to check simultaneously, keeps in repair and changes.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. two J shaped steel damping units, is characterized in that: comprise upper junction plate, lower connecting plate, at least one two J type damping element, guide peg, upper backup pad, lower supporting plate; On described upper junction plate, offer connecting hole, described upper junction plate utilizes anchorage rod to be connected with beam body by described upper connecting hole; Described upper junction plate and upper backup pad are interconnected and fixed; Described pair of J type damping element first end offers vertical guide groove; In the vertical guide groove of described pair of J type damping element, be provided with slide block, described slide block passes via described guide peg; Described guide peg two ends are fixed on described upper junction plate by described upper backup pad; Described pair of J type damping element the second end uses connecting pin to be connected with described lower supporting plate; Described lower connecting plate and lower supporting plate are interconnected and fixed; On described lower connecting plate, offer lower connecting hole, described lower connecting plate is connected with bridge pier by anchorage rod by described lower connecting hole.
2. the two J shaped steel damping units of one as claimed in claim 1, is characterized in that: described pair of J type damping element is that the plate Symmetric Composite that two flat shapes are J type forms.
3. the two J shaped steel damping units of one as claimed in claim 1, is characterized in that: between described slide block and guide peg and vertical guide groove, be provided with gap.
4. the two J shaped steel damping units of one as claimed in claim 3, is characterized in that: described slide block is less than vertical gap with the lateral clearance of vertical guide groove.
5. the two J shaped steel damping units of one as claimed in claim 3, is characterized in that: the described pair of J type damping element outside and gap location are provided with side block piece.
6. the two J shaped steel damping units of one as claimed in claim 1, is characterized in that: described pair of J type damping element is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116163.1U CN203890859U (en) | 2014-03-14 | 2014-03-14 | Double J type steel damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116163.1U CN203890859U (en) | 2014-03-14 | 2014-03-14 | Double J type steel damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890859U true CN203890859U (en) | 2014-10-22 |
Family
ID=51717281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420116163.1U Expired - Lifetime CN203890859U (en) | 2014-03-14 | 2014-03-14 | Double J type steel damping device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203890859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794085A (en) * | 2020-07-17 | 2020-10-20 | 河北工业大学 | Variable cross-section yielding L-shaped metal damper |
| CN112391940A (en) * | 2020-12-15 | 2021-02-23 | 中铁二院工程集团有限责任公司 | Damping energy-consuming beam falling prevention device |
-
2014
- 2014-03-14 CN CN201420116163.1U patent/CN203890859U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794085A (en) * | 2020-07-17 | 2020-10-20 | 河北工业大学 | Variable cross-section yielding L-shaped metal damper |
| CN112391940A (en) * | 2020-12-15 | 2021-02-23 | 中铁二院工程集团有限责任公司 | Damping energy-consuming beam falling prevention device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |