CN103306192A - Bridge space energy consumption limit device - Google Patents
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- CN103306192A CN103306192A CN2013102363804A CN201310236380A CN103306192A CN 103306192 A CN103306192 A CN 103306192A CN 2013102363804 A CN2013102363804 A CN 2013102363804A CN 201310236380 A CN201310236380 A CN 201310236380A CN 103306192 A CN103306192 A CN 103306192A
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Abstract
The invention discloses a bridge space energy consumption limit device, which comprises a longitudinal energy consumption limit device and a transversal consumption limit device, wherein the longitudinal energy consumption limit device is arranged between a bridge and an abutment; the transversal consumption limit device is arranged in the seam between bridges; the device is simple to make and convenient to assemble; under normal operation, the device can stretch freely along with the structure, while under the action of strong shock, the longitudinal limit cover board can effectively prevent beam jumping; and the longitudinal and the transversal consumption limit device can limit the development of relative displacement and realize the self reset of the device after the shock through a shape memory alloy spring stretching and compression energy consumption. The bridge space energy consumption limit device can effectively solve the problems in the conventional bridge regarding the safety of the longitudinal and the transversal displacement, the continuous energy consumption capability, and the self reset after the shock.
Description
Technical field
The present invention relates to a kind of bridge construction power consumption stopping means, the particularly spacing power consumption protective device of a kind of earthquake based on marmem.
Background technology
In recent years, violent earthquake frequent occurrence in the world wide, more representative such as 7.9 grades of earthquakes of Indonesia, 7.0 grades of earthquakes of New Zealand, 9.0 grades of earthquakes of east Japan etc., especially Wenchuan earthquake in 2008, Yushu earthquake in 2010 and the 7.0 grades of earthquakes in Yaan, Sichuan in April, 2013 have produced far-reaching economic and social impacts to China.Huge, the far-reaching earthquake of these destructions indicates that the world has entered Earthquake Activity Periods.China is earthquake country occurred frequently, and repeatedly heavy earthquake historical lessons are arranged, though all greatly promoted building structure aseismatic the perfect of system of setting up defences, still there is great defective in existing structural seismic performance.The Bridge Earthquake Resistance Design of China is mainly emphasized the intensity of beam body, pier body, namely how to defend it is not collapsed in earthquake.The main construction measure of conventional method is at the pier body the anti-fall beam block of concrete to be set, and limits within the specific limits with lateral displacement amount and length travel amount with the beam body.But contact owing to lacking between beam body and pier body, beam body and the beam body, when the higher earthquake of earthquake intensity is attacked, the impact that acutely rocked by the beam body, shear failure easily occurs and lost efficacy in beam falling prevention stopping block, produces beam and destroys.A lot of bridges just have been subject to destruction in " 5.12 " earthquake, and earthquake produces large displacement destruction between beam body and the bridge pier, even the beam destruction that falls has become the principal element that the earthquake Bridge destroys.
Bridge is as the multi-purpose project in the traffic lines, and the traffic lines of China especially high-speed railway be main mainly with bridge, the safety of how to take precautions against the bridge earthquake centre has become the matter of great urgency.Therefore, the present invention proposes a kind of bridge space power consumption stopping means based on marmem, be intended to limit the displacement deformation of bridge in earthquake, dissipation energy, and then prevent the bridge beam danger that falls.
Summary of the invention
The fast development of high-speed railway Bridge structure, and bridge and pier body, bridge and bridge generation over-large displacement and destroy increasing of case under the geological process are so that the development of bridge construction antidetonation stopping means is extremely urgent.The invention provides the spacing power consumption protective device of a kind of earthquake based on marmem, satisfy normal operation instructions for use, solve the problem of bridge limiting shock resistant power consumption under the geological process.
In order to realize above-mentioned technical purpose, the technical scheme of patent of the present invention is: a kind of bridge space power consumption stopping means, comprise vertical power consumption stopping means and the stopping means that laterally consumes energy, vertically the power consumption stopping means is arranged between bridge and the pier, and the stopping means that laterally consumes energy is arranged on the seam between the bridge.
Preferably, the stopping means that vertically consumes energy comprises vertical base plate and longitudinal rod base plate, vertically is connected by horizontal T-shaped connecting rod between base plate and the longitudinal rod base plate.
Preferably, horizontal T-shaped connecting rod comprises straight-bar and T-shaped bar spring coupling plate, T-shaped bar spring coupling plate is fixed in the straight-bar end, T-shaped bar spring coupling plate is arranged on vertical base plate, at least one side of T-shaped bar spring coupling plate is connected with shape memory alloy spring, and the shape memory alloy spring end is fixed on vertical base plate by the rectangular rubber sheet.The rectangular rubber sheet adopts rubber type of material (natural rubber, synthetic rubber) and plastic materials (polyethylene, polypropylene etc.).
Preferably, shape memory alloy spring is parallel with the straight-bar of horizontal T-shaped connecting rod.
Preferably, vertically the end away from the longitudinal rod base plate is provided with the left block of vertical base on the base plate, vertically is provided with the block stiffening rib on the left block of base; Vertically the end near the longitudinal rod base plate is provided with the right block of vertical base on the base plate, vertically is provided with the block stiffening rib on the right block of base.
Preferably, vertically be provided with the horizontal bar shaped spacing hole of right block on the right block of base, the straight-bar of horizontal T-shaped connecting rod passes the horizontal bar shaped spacing hole of right block.
Preferably, be provided with longitudinal rod base block on the longitudinal rod base plate, be provided with connecting rod block stiffening rib on the longitudinal rod base block.
Preferably, the straight-bar of horizontal T-shaped connecting rod is fixed on the T-shaped lever attachment hole on the longitudinal rod base block by nut.
Preferably, vertically be provided with high-strength expanding bolts on base plate and the longitudinal rod base plate, high-strength expanding bolts arranges down.
Preferably, the stopping means that vertically consumes energy comprises transverse link base plate and transverse base base plate, is connected by vertical T-shaped connecting rod between transverse link base plate and the transverse base base plate.
Preferably, vertical T-shaped connecting rod top is fixed on the transverse link base plate by the triangle floor of putting more energy into, and vertical T-shaped connecting rod bottom is horizontal T-shaped bar spring coupling plate.
Preferably, at least one side of horizontal T-shaped bar spring coupling plate is connected with shape memory alloy spring, and the shape memory alloy spring end is fixed on the transverse base base plate by the rectangular rubber sheet.
Preferably, the rectangular rubber sheet periphery on the transverse base base plate is provided with the transverse base block, is provided with stiffening rib on the transverse base block.
Preferably, be stamped the vertical spacing cover plate on the transverse base block.
Preferably, be provided with hole on the vertical spacing cover plate, vertical T-shaped connecting rod passes hole.
Preferably, be provided with high-strength expanding bolts on transverse link base plate and the transverse base base plate, the high-strength expanding bolts on the transverse link base plate arranges up; High-strength expanding bolts on the transverse base base plate arranges down.
Preferably, T-shaped bar spring coupling plate both sides are provided with shape memory alloy spring, and every side is provided with two shape memory alloy springs, and two shape memory alloy springs of both sides are symmetrical arranged.
Preferably, longitudinal rod base block both sides are provided with the nut of the straight-bar of affixed horizontal T-shaped connecting rod.
Preferably, horizontal T-shaped bar spring coupling plate both sides are provided with shape memory alloy spring, and every side is provided with two shape memory alloy springs, and two shape memory alloy springs of both sides are symmetrical arranged.
Based on the bridge space power consumption stopping means of marmem, comprise that vertical block base, T-shaped connecting rod, longitudinal rod base, vertical (horizontal stroke) are to shape memory alloy spring, horizontal block base, transverse link base, rubber sheet gasket, vertical spacing cover plate etc.Vertically block base and longitudinal rod base are by T-shaped connecting rod level connection joint, four shape memory alloy spring both sides are welded side by side and are connected in T-shaped rod end, laterally the block base vertically is connected by T-shaped connecting rod with the transverse link base, four shape memory alloy spring both sides are welded side by side and are connected in T-shaped rod end, laterally welding vertical spacing cover plate on the block base baffle.
4 shape memory alloy springs of above-mentioned T-shaped rod end welding, when earthquake occurs, bridge longitudinally is subjected to displacement, vertically block base junction contacts with spring terminal, displacement continues to increase, spring produces elastic force by compression, the elastic force of the larger generation of displacement is also larger, the energy that consumes is also more, and under effect in the powerful reaction, the bridge displacement is effectively controlled, again because the increase of the linearity of spring reaction power, directly avoided the collision between the beam body, the spring operating principle in the horizontal limit devices is also like this, can effectively limit lateral displacement and the dissipation energy of bridge.
In the violent earthquake situation, spring-compressed reaches capacity, the performance of the structure that device can also the own steel of utilization itself and prevent vertically and the horizontal beam situation that falls occurs having the girder falling performance.
Patent of the present invention also is, vertically block base, longitudinal rod base all are connected by expansion bolt with the bridge concrete structure, laterally block base, transverse link base are connected by expansion bolt with Bridge Pier concrete structure, bridge underplate concrete respectively, cushioning pad between expansion bolt and nut, the effectively connection between stiffener.
The present invention also is, vertically the block seating plane leaves the slit with T-shaped connecting rod, and laterally the block seating plane leaves the slit with T-shaped connecting rod vertical direction, and all retractable satisfies and normally runs the bridge temperature deformation.
The present invention also is, T-shaped connecting rod is solid steel welding, with the spring link be the rectangle steel plate, welding manner is the total cross-section through welding.
The present invention also is, vertical T-shaped connection rod end is connected by high-strength nut with the longitudinal rod base baffle, and horizontal T-shaped connection rod end and transverse link base be by being welded to connect, the rod end both sides transverse weld right-angled triangle steel plate of putting more energy into.
The present invention also is, the close baffle plate end connection of shape memory alloy spring square rubber gasket, and leave the slit between baffle plate, rubber sheet gasket can prevent that spring from contacting with the steel plate rigid collision.
The present invention also is, vertical spacing cover plate and horizontal block base baffle top solder, and the total cross-section through welding, restriction is opened the larger circular hole of diameter, temperature deformation displacement when normally runing to satisfy bridge because the bridge that geological process produces is jumped the beam phenomenon on the plate.
The present invention also is, vertically horizontal bar shaped spacing hole is opened in block base baffle and T-shaped bar junction, and rod member can be free to slide, temperature deformation displacement when satisfying bridge and normally runing.
Therefore, effective effect of the technical scheme of patent of the present invention is: effectively between the lift bridge girder construction, bridge and the service behaviour of pier structure under earthquake.Under normal bridge operation, can satisfy the displacement that the distortion of beam temperature produces, under geological process, can bring into play the spacing power consumption effect of good antidetonation, absorb large energy, prevent bridge generation over-large displacement and produce destruction, have simultaneously deadweight light, make the advantages such as simple, for the spacing power consumption of bridge under the macroseism provides reliable apparatus, have good practical value and economic benefit.
Because the not stationarity of height between the diversity of bridge construction form and bridge and the pier; the base arrangement form of patent of the present invention also has diversity, thereby structural arrangement form and operating principle and the similar situation device of this patent are all within the protection domain of this patent.
Accompanying drawing below in conjunction with an implementation example is described further patent of the present invention.
Description of drawings
Fig. 1 is the bridge space power consumption stopping means general illustration based on marmem;
Fig. 2 is Fig. 1 Bridge stopping means A schematic diagram that vertically consumes energy;
Fig. 3 is vertical block base schematic diagram among Fig. 2;
Fig. 4 is longitudinal rod base schematic diagram among Fig. 2;
Fig. 5 is vertical block base, longitudinal rod base vertical view among Fig. 2;
Fig. 6 is longitudinal spring and T-shaped connecting rod schematic diagram among Fig. 2;
Fig. 7 is Fig. 1 Bridge stopping means B schematic diagram that laterally consumes energy;
Fig. 8 is horizontal block base and vertical spacing cover plate schematic diagram among Fig. 7;
Fig. 9 is horizontal block base vertical view among Fig. 7;
Figure 10 is crossed strip and T-shaped bar connection diagram among Fig. 7;
Wherein 1 is the left block of vertical base, 2 is the block stiffening rib, 3 is high-strength expanding bolts, and 4 is vertical base plate, and 5 is the horizontal bar shaped spacing hole of right block, 6 is the right block of vertical base, 7 is longitudinal rod base block, and 8 is T-shaped lever attachment hole, and 9 is connecting rod block stiffening rib, 10 is the longitudinal rod base plate, 11 is shape memory alloy spring, and 12 is horizontal T-shaped connecting rod, and 13 is T-shaped bar spring coupling plate, 14 is nut, 15 is the rectangular rubber sheet, and 16 is horizontal T-shaped bar spring coupling plate, and 17 is vertical T-shaped connecting rod, 18 are the triangle floor of putting more energy into, 19 is the transverse link base plate, and 20 is the vertical spacing cover plate, and 21 is the transverse base block, 22 is stiffening rib, and 23 is the transverse base base plate.
The specific embodiment
The below further specifies patented technology content of the present invention, but is not the restriction to patent flesh and blood of the present invention.
Fig. 1 is the bridge space power consumption stopping means general illustration based on marmem; Fig. 2 is Fig. 1 Bridge stopping means A schematic diagram that vertically consumes energy; Fig. 3 is vertical block base schematic diagram among Fig. 2; Fig. 4 is longitudinal rod base schematic diagram among Fig. 2; Fig. 5 is vertical block base, longitudinal rod base vertical view among Fig. 2; Fig. 6 is longitudinal spring and T-shaped connecting rod schematic diagram among Fig. 2; Fig. 7 is Fig. 1 Bridge stopping means B schematic diagram that laterally consumes energy; Fig. 8 is horizontal block base and vertical spacing cover plate schematic diagram among Fig. 7; Fig. 9 is horizontal block base vertical view among Fig. 7; Figure 10 is crossed strip and T-shaped bar connection diagram among Fig. 7; Shown in Fig. 1-10, power consumption stopping means in bridge space comprises vertical power consumption stopping means and horizontal power consumption stopping means, and the stopping means that vertically consumes energy is arranged between bridge and the pier, and the stopping means that laterally consumes energy is arranged on the seam between the bridge.
It also is, the stopping means that vertically consumes energy comprises vertical base plate 4 and longitudinal rod base plate 10, vertically is connected by horizontal T-shaped connecting rod 12 between base plate 4 and the longitudinal rod base plate 10.
It also is, horizontal T-shaped connecting rod 12 comprises straight-bar and T-shaped bar spring coupling plate 13, T-shaped bar spring coupling plate 13 is fixed in the straight-bar end, T-shaped bar spring coupling plate 13 is arranged on vertical base plate 4, T-shaped bar spring coupling plate 13 at least one sides are connected with shape memory alloy spring 11, and shape memory alloy spring 11 ends are fixed on vertical base plate 4 by rectangular rubber sheet 15.
It also is, shape memory alloy spring 11 is parallel with the straight-bar of horizontal T-shaped connecting rod 12.
It also is, vertically the end away from longitudinal rod base plate 10 is provided with the left block 1 of vertical base on the base plate 4, vertically is provided with block stiffening rib 2 on the left block 1 of base; Vertically the end near longitudinal rod base plate 10 is provided with the right block 6 of vertical base on the base plate 4, vertically is provided with block stiffening rib 2 on the right block 6 of base.
It also is, vertically is provided with the horizontal bar shaped spacing hole 5 of right block on the right block 6 of base, and the straight-bar of horizontal T-shaped connecting rod 12 passes the horizontal bar shaped spacing hole 5 of right block.
It also is, is provided with longitudinal rod base block 7 on the longitudinal rod base plate 10, is provided with connecting rod block stiffening rib 9 on the longitudinal rod base block 7.
It also is, the straight-bar of horizontal T-shaped connecting rod 12 is fixed on the T-shaped lever attachment hole 8 on the longitudinal rod base block 7 by nut 14.
It also is, vertically is provided with high-strength expanding bolts 3 on base plate 4 and the longitudinal rod base plate 10, and high-strength expanding bolts 3 arranges down.
It also is, the stopping means that vertically consumes energy comprises transverse link base plate 19 and transverse base base plate 23, is connected by vertical T-shaped connecting rod 17 between transverse link base plate 19 and the transverse base base plate 23.
It also is, vertical T-shaped connecting rod 17 tops are fixed on the transverse link base plate 19 by the triangle floor 18 of putting more energy into, and vertical T-shaped connecting rod 17 bottoms are horizontal T-shaped bar spring coupling plate 16.
It also is, horizontal T-shaped bar spring coupling plate 16 at least one sides are connected with shape memory alloy spring 11, and shape memory alloy spring 11 ends are fixed on the transverse base base plate 23 by rectangular rubber sheet 15.
It also is, rectangular rubber sheet 15 peripheries on the transverse base base plate 23 are provided with transverse base block 21, are provided with stiffening rib 22 on the transverse base block 21.
It also is, is stamped vertical spacing cover plate 20 on the transverse base block 21.
It also is, is provided with hole on the vertical spacing cover plate 20, and vertical T-shaped connecting rod passes hole.
It also is, is provided with high-strength expanding bolts 3 on transverse link base plate 19 and the transverse base base plate 23, and the high-strength expanding bolts 3 on the transverse link base plate 19 arranges up; High-strength expanding bolts 3 on the transverse base base plate 23 arranges down.
It also is, T-shaped bar spring coupling plate 13 both sides are provided with shape memory alloy spring 11, and every side is provided with two shape memory alloy springs 11, and two shape memory alloy springs 11 of both sides are symmetrical arranged.
It also is, longitudinal rod base block 7 both sides are provided with the nut 14 of the straight-bar of affixed horizontal T-shaped connecting rod 12.
It also is, horizontal T-shaped bar spring coupling plate 16 both sides are provided with shape memory alloy spring 11, and every side is provided with two shape memory alloy springs 11, and two shape memory alloy springs 11 of both sides are symmetrical arranged.
Patented technology of the present invention is applicable to bridge construction, railroad bridge box girder bridge class especially, as shown in Figure 1.Power consumption stopping means in bridge space comprises vertical power consumption stopping means A and horizontal power consumption stopping means B, and the stopping means A that vertically consumes energy is arranged between bridge and the pier, and the stopping means B that laterally consumes energy is arranged on the seam between the bridge.For the bridge construction part, at first structure is carried out force analysis, determine bridge construction under geological process with the relative displacement of pier and stressed, and the contraction displacement that temperature load causes under the normal operation, and then the dimensions length of definite shape memory alloy spring 11, here adopting spring is spring wire diameter 1cm, spring diameter 6cm, long 15cm.
Vertically block base plate 4 can adopt 15～20mm steel plate, the long 50cm of wide 30cm, adopt 4.6 grades of expansion bolts 3 and bridge concrete base plate to fix, arrange as shown in Figure 5 10 expansion bolts 3, relevant position total cross-section welding left and right sides block 1,6 on the base plate, and the welding respective direction floor 2 of putting more energy into, block 1, the thick 2cm of the wide 20cm of 6 high 12cm, adopt the Q235 steel, open the spacing circular hole 5 of bar shaped on the right baffle plate 6, T-shaped rod member 12 passes circular hole 5 and is connected 14 connections with right side longitudinal rod base block 7 usefulness large size nuts.T-shaped connecting rod 12 is across two bridge construction shrinkage joint, and T-shaped rod member 12 can be selected the thick round stock rod member of diameter 4～5cm, length 0.5m, adopt the Q235 steel, the connected steel plate 13 in left part and rod member 12 total cross-section through weldings, steel plate 13 thick 2cm, wide 20cm, high 10cm adopts the Q235 steel, and both sides connect 4 shape memory alloy springs 11, the spring parameter size is decided as calculated, its end all is connected with 4 square sheet rubbers 15, sheet rubber 15 thick 1cm, length of side 10cm.Sheet rubber 15 respectively with the about 1cm space of vertical left and right sides block distance, can satisfy normal operation beam temperature distortion free-extension.Be total cross-section between longitudinal rod base plate 10 and block 7 and the stiffening rib 9 and be welded to connect, open diameter in the middle of the block 7 and be about the 5cm circular hole, make things convenient for rod member 12 to be connected with nut 14.Base 10 is connected and fixed by 6 expansion bolts 3 with another sheet bridge construction base plate.
Laterally block base plate 23 can adopt 15～20mm steel plate, the long 50cm of wide 30cm, adopt 4.6 grades of expansion bolts 3 and bridge pier seat concrete to fix, arrange as shown in Figure 9 10 expansion bolts 3, relevant position total cross-section welding left and right sides block 21 on the base plate, and the welding respective direction floor 22 of putting more energy into, the thick 2cm of the block wide 20cm of 21 high 12cm, adopt the Q235 steel, welding vertical spacing cover plate 20 on it, cover plate 20 adopts Q235 steel, thickness 1cm, diameter 10cm circular hole is opened in the centre, two ends and baffle plate 21 top total cross-section welding.Pass T-shaped connecting rod 17 in the middle of cover plate 20 circular holes.T-shaped rod member 17 can be selected the thick round stock rod member of diameter 4～5cm, length 20～30cm with reference to highly deciding at the bottom of the on-the-spot beam and between the pier, adopts the Q235 steel in detail, the connected base steel plate 19 in upper end and rod member 17 total cross-section through weldings, rod end both sides welding triangle stiffening rib 18, the thick 2cm of floor, base steel plate 19 thick 2cm, wide 20cm, high 10cm, long 25cm adopts expansion bolt 3 to be connected with the concrete-bridge base plate.T-shaped rod member 17 bottom steel plates 16 adopt Q235 steel, thick 2cm, wide 20cm, high 10cm, both sides laterally connect 4 shape memory alloy springs 11, and the spring parameter size is decided as calculated, its end all is connected with 4 square sheet rubbers 15, sheet rubber 15 thick 1cm, length of side 10cm.Sheet rubber 15 respectively with the about 1cm space of horizontal left and right sides block distance, can satisfy the relative deformation of normal operation beam body.
Claims (10)
1. power consumption stopping means in a bridge space is characterized in that, comprises vertical power consumption stopping means and horizontal power consumption stopping means, and the stopping means that vertically consumes energy is arranged between bridge and the pier, and the stopping means that laterally consumes energy is arranged on the seam between the bridge.
2. bridge according to claim 1 space power consumption stopping means, it is characterized in that, vertically the power consumption stopping means comprises vertical base plate (4) and longitudinal rod base plate (10), is connected by horizontal T-shaped connecting rod (12) between vertical base plate (4) and the longitudinal rod base plate (10).
3. bridge according to claim 2 space power consumption stopping means, it is characterized in that, horizontal T-shaped connecting rod (12) comprises straight-bar and T-shaped bar spring coupling plate (13), T-shaped bar spring coupling plate (13) is fixed in the straight-bar end, T-shaped bar spring coupling plate (13) is arranged on vertical base plate (4), at least one side of T-shaped bar spring coupling plate (13) is connected with shape memory alloy spring (11), and shape memory alloy spring (11) end is fixed on vertical base plate (4) by rectangular rubber sheet (15).
4. bridge space power consumption stopping means according to claim 3 is characterized in that, shape memory alloy spring (11) is parallel with the straight-bar of horizontal T-shaped connecting rod (12).
5. bridge according to claim 4 space power consumption stopping means, it is characterized in that, vertically the upper end away from longitudinal rod base plate (10) of base plate (4) is provided with the left block of vertical base (1), vertically is provided with block stiffening rib (2) on the left block of base (1); Vertically the upper end near longitudinal rod base plate (10) of base plate (4) is provided with the right block of vertical base (6), vertically is provided with block stiffening rib (2) on the right block of base (6).
6. bridge according to claim 5 space power consumption stopping means, it is characterized in that, vertically be provided with the horizontal bar shaped spacing hole of right block (5) on the right block of base (6), the straight-bar of horizontal T-shaped connecting rod (12) passes the horizontal bar shaped spacing hole of right block (5).
7. bridge space power consumption stopping means according to claim 6 is characterized in that, is provided with longitudinal rod base block (7) on the longitudinal rod base plate (10), is provided with connecting rod block stiffening rib (9) on the longitudinal rod base block (7).
8. power consumption stopping means in bridge according to claim 7 space is characterized in that, the straight-bar of horizontal T-shaped connecting rod (12) is fixed on the T-shaped lever attachment hole (8) on the longitudinal rod base block (7) by nut (14).
9. bridge space power consumption stopping means according to claim 8 is characterized in that, vertically be provided with high-strength expanding bolts (3) on base plate (4) and the longitudinal rod base plate (10), high-strength expanding bolts (3) arranges down.
10. bridge according to claim 9 space power consumption stopping means, it is characterized in that, vertically the power consumption stopping means comprises transverse link base plate (19) and transverse base base plate (23), is connected by vertical T-shaped connecting rod (17) between transverse link base plate (19) and the transverse base base plate (23); Perhaps vertical T-shaped connecting rod (17) top is fixed on the transverse link base plate (19) by the triangle floor (18) of putting more energy into, and vertical T-shaped connecting rod (17) bottom is horizontal T-shaped bar spring coupling plate (16); Perhaps at least one side of horizontal T-shaped bar spring coupling plate (16) is connected with shape memory alloy spring (11), and shape memory alloy spring (11) end is fixed on the transverse base base plate (23) by rectangular rubber sheet (15); Perhaps rectangular rubber sheet (15) periphery on the transverse base base plate (23) is provided with transverse base block (21), is provided with stiffening rib (22) on the transverse base block (21); Perhaps be stamped vertical spacing cover plate (20) on the transverse base block (21); Perhaps be provided with hole on the vertical spacing cover plate (20), vertical T-shaped connecting rod passes hole; Perhaps be provided with high-strength expanding bolts (3) on transverse link base plate (19) and the transverse base base plate (23), the high-strength expanding bolts (3) on the transverse link base plate (19) arranges up; High-strength expanding bolts (3) on the transverse base base plate (23) arranges down; Perhaps T-shaped bar spring coupling plate (13) both sides are provided with shape memory alloy spring (11), and every side is provided with two shape memory alloy springs (11), and two shape memory alloy springs (11) of both sides are symmetrical arranged; Perhaps longitudinal rod base block (7) both sides are provided with the nut (14) of the straight-bar of affixed horizontal T-shaped connecting rod (12); Perhaps horizontal T-shaped bar spring coupling plate (16) both sides are provided with shape memory alloy spring (11), and every side is provided with two shape memory alloy springs (11), and two shape memory alloy springs (11) of both sides are symmetrical arranged.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103696358A (en) * | 2013-12-17 | 2014-04-02 | 北京工业大学 | Multi-span bridge damping device activated by earthquake acceleration |
| CN106480991A (en) * | 2016-11-02 | 2017-03-08 | 西安建筑科技大学 | A kind of shape memory alloy spring antivibrator |
| CN106758785A (en) * | 2017-03-15 | 2017-05-31 | 北京国道通公路设计研究院股份有限公司 | Embedded elastic anti-fall girder apparatus |
| CN106930180A (en) * | 2017-03-10 | 2017-07-07 | 中国市政工程中南设计研究总院有限公司 | A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally coming off |
| CN107268432A (en) * | 2017-07-03 | 2017-10-20 | 河南理工大学 | A kind of damping shock resistance bridge expanssion joint mechanism and its construction method |
| CN110130210A (en) * | 2019-05-31 | 2019-08-16 | 中铁二院工程集团有限责任公司 | A kind of installation method of girder falling energy-consuming device |
| CN112900237A (en) * | 2021-01-15 | 2021-06-04 | 招商局重庆交通科研设计院有限公司 | Slippage limiting energy-consumption type anti-falling beam structure and construction method thereof |
| CN114960396A (en) * | 2022-04-26 | 2022-08-30 | 中铁第四勘察设计院集团有限公司 | Elasticity and locking limit constraint structure system of cable-stayed bridge |
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