CN103088751B - Replaceable limiting and locking damping energy consumption device - Google Patents
Replaceable limiting and locking damping energy consumption device Download PDFInfo
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- CN103088751B CN103088751B CN201210444608.4A CN201210444608A CN103088751B CN 103088751 B CN103088751 B CN 103088751B CN 201210444608 A CN201210444608 A CN 201210444608A CN 103088751 B CN103088751 B CN 103088751B
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Abstract
The invention discloses a replaceable limiting and locking damping energy consumption device and belongs to the field of civil engineering and mechanical engineering. A web plate and flanges of welding joint steel (1) are cut to be replaced with metal compound energy consumption plates (2); two ends of the welding joint steel (1) are connected with horizontal partition plates (3), and the partition plate at one end is connected with a clamping slot box (7); the side wall of one side of the clamping slot box (7) is provided with a protruded interlocking clamping plate (9); a side wall which is opposite to the side wall provided with the interlocking clamping plate (9) is provided with a slot which extends into a self-locking clamping plate (6); the self-locking clamping plate (6) is a steel plate of which the end is gradually protruded and the middle is provided with an opening; and the opening of the self-locking clamping plate (6) is opposite to a bulge of the interlocking clamping plate (9). In earthquake, after the structural deformation exceeds an expected value, a bridge pier and a beam body are locked, and the connection mode is changed by a self-locking device, the deformation of a main body structure is reduced, and the condition that a beam of a bridge falls and the bridge is damaged can be avoided; and the replaceable limiting and locking damping energy consumption device is simple in structure, can effectively prevent the beam from falling off and has good energy consumption capacity.
Description
Technical field
The invention belongs to bridge engineering antidetonation and cushion technique field, relate to a kind of weaken the i iron edge of a wing and web original steel and be replaced into metallic composite power consumption plate, i iron end is connected with self-locking device simultaneously, thus replaceable type limitation locking damping energy-dissipating device under forming geological process.This invention is with low cost, anti-seismic performance outstanding, effectively restrainer, easy construction, has good development prospect.
Background technology
In Wenchuan earthquakes in 2008 and Japanese violent earthquake in 2011, hundreds of seat beam bridge fall in earthquake beam destroy, road and bridge engineering as the lifeline engineering of Post disaster relief is seriously damaged, make rescue personnel can not arrive disaster area First Line on time, bring massive losses to country, society and the people's lives and property.Simply supported beam and continuous girder bridge prolong the bridge longitudinal degress of feedom and usually do not retrain, and under geological process, when the displacement that bridge pier prolongs bridge longitudinal direction is excessive, is easy to that bridge occurs and falls beam.The conventional construction measure of positive stop is set at beam-ends, does not reach the Seismic Design Requirements of expection.Therefore be necessary to develop a kind of bridge restrainer energy dissipation apparatus.
Current bridge energy dissipation damper is directly fixedly connected with Dun Liang usually, not only change the stressed of beam bridge and continuous girder bridge system simply, beam longitudinal strain is made to can not get release and cause beam body to ftracture, be not easy to again the maintenance process simulation of damping unit, conventional damper easy destruction under geological process can not be reused usually, and this will increase bridge maintenance cost.And the construction measure of traditional restrainer arranges positive stop on bridge pier, although play the effect of restrainer, this measure does not reduce the destruction of seismic energy to bridge.Very easily collide with block at geological process underbeam body causes beam body to destroy, for post-disaster reconstruction is made troubles simultaneously.There is no a kind of repeatedly energy dissipation apparatus of effective restrainer at present.
Use for reference the technological means of mechanical engineering field, adopt novel metal compound Energy dissipating material and snap lock means, fully utilize the feature of various measure, exploitation bridge replaceable type limitation locking damping energy-dissipating device, the deficiency of above-mentioned bridge earthquake resistance measure can be overcome, for bridge earthquake resistance provides more multifarious technical support, there is great engineering significance.
Summary of the invention
The present invention gives a kind of bridge replaceable type limitation locking damping energy-dissipating device, goal of the invention is that bridge pier and girder are locked by energy dissipation apparatus by self-locking device, effective restrainer under geological process after displacement of bridge pier reaches limit value; Simultaneously, by weakening original steel of the edge of a wing, i beam end and web and being replaced into yield strength and being less than 120MPa and the strong metallic composite of energy dissipation capacity, energy dissipation apparatus after locking under making earthquake carries out energy-dissipating and shock-absorbing at metal composite Energy dissipating material place formation plastic hinge and is easy to construction and safeguards, with low cost, cost performance is high.
To achieve these goals, this invention takes following technical scheme:
Replaceable type limitation locking damping energy-dissipating device, comprises welding H-bar 1, metallic composite power consumption plate 2, diaphragm 3, high-strength bolt 4, preventing rubber pad 5, self-locking card buckle 6, draw-in groove case 7, draw-in groove cover plate 8, interlocking clamp buckle 9, pre-embedded steel slab 10, the web of welding H-bar 1 and edge of a wing cutting are replaced into metal composite power consumption plate 2, two diaphragms 3 that interval is placed are connected at the two ends of welding H-bar 1, the outermost diaphragm 3 of one end is connected with draw-in groove case 7, the side sidewall of draw-in groove case 7 is provided with protruding interlocking clamp buckle 9, the sidewall relative with being provided with interlocking clamp buckle 9 is slotted, self-locking card buckle 6 has deeply been stretched into from described groove, self-fastening button clamp 6 is end gradual change projection, the steel plate of middle opening, the end of self-fastening button clamp 6 projection is positioned at draw-in groove case 7 and size is greater than the fluting size on draw-in groove case 7, self-fastening button clamp 6 can not skid off from the fluting on draw-in groove case 7, the opening of self-fastening button clamp 6 is just relative with the projection of interlocking clamp buckle 9, when self-locking card buckle 6 exceedes limit value at geological process bottom offset, crimp is there is in self-locking card buckle 6 end under the effect of draw-in groove case 7, self-locking card buckle 6 slips into interlocking clamp buckle 9 side of draw-in groove case 7, along with the continuation of displacement increases, self-locking card buckle 6 contacts with interlocking clamp buckle 9, under extruding force effect, outstanding interlocking clamp buckle 9 will put in the opening of self-locking card buckle 6, realize locking, self-fastening button clamp 6 end is connected with the pre-embedded steel slab 10 for being connected with bridge pier and post, is provided with in the inside of draw-in groove case 7 and pre-embedded steel slab 10 the preventing rubber pad 5 collided for reducing device near the side of draw-in groove case 7, the draw-in groove cover plate 8 for the protection of draw-in groove case 7 inner part is also provided with in the sidewall locations of draw-in groove case 7, be connected by high-strength bolt 4 between diaphragm 3 with draw-in groove case 7, the side diaphragm 3 not being connected with draw-in groove case 7 is connected with parts such as Liang Ti by high-strength bolt 4.After the malformation under earthquake exceedes desired value, interlocking clamp buckle 9 and self-locking card buckle 6 can lock mutually, change type of attachment, make metallic composite power consumption plate 2 produce larger reciprocal transformation and reduce agent structure distortion simultaneously, realize the energy-dissipating and shock-absorbing of metallic composite, after geological process, the metallic composite of destruction power consumption plate 2 is replaced into new power consumption plate, self-locking card buckle 6 and interlocking clamp buckle 9 is resetted thus reaches the object consumed energy under repeatedly geological process.
Metallic composite power consumption plate 2 can be replaced, and its material is the adhesive board of aluminium alloy plate or mild steel and lead.
Self-locking card buckle 6 and draw-in groove cover plate 8 steel yield strength are more than or equal to 235MPa, and interlocking clamp buckle 9 and draw-in groove case 7 steel yield strength are more than or equal to 345MPa.Interlocking clamp buckle 9 is all connected by mechanical welding manner with draw-in groove case 7 with between self-locking card buckle 6 with pre-embedded steel slab 10, and weld seam grade is one-level; Preventing rubber pad 5 and all being bondd by high-strength structureal adhesives between draw-in groove case 7 sidewall and bridge pier pre-embedded steel slab 10.Self-locking card buckle 6 and interlocking clamp buckle 9 dop bevel inclination angle are 25 ° to 30 °.Inside draw-in groove case 7, keeper and self-locking card buckle 6 leading inside bevel inclination angle are 25 ° to 30 °.Pour into lubrication oil in draw-in groove case 7 and protection and lubrication are played to self-locking device.Draw-in groove case 7 is between 35mm to 50mm apart from bridge pier sidewall distance.
Symmetrical cutting on the frange plate of welding H-bar 1, frange plate both sides cutting part curve shape is symmetrical circular arc line, and the vertical distance c of circular arc line summit and interdependent flange edges is 20% to 25% of frange plate thickness, the Breadth Maximum b of one side wing edge cutting part is 65% to 85% of i beam height h, the edge of a wing is 50% to 70% of frange plate width near the cut point distance end plate distance a of end diaphragm, and frange plate cutting part thickness is identical with frange plate thickness; Web cutting part is circular, prolongs the center of circle, web length direction and frange plate cutting part circular curve summit is positioned at same i iron 1 cross section; Web cutting profile is circular, and radius of circle r is 20% to 25% of web height, and web cutting thickness is identical with web thickness; Interior diaphragm is that the cut point of the edge of a wing near end diaphragm is apart from 40% to 50% of end plate distance a apart from the distance d of end diaphragm.
Preventing rubber pad 5 material is weather-proof rubber; Metallic composite power consumption plate 2 is less than mild steel, aluminium alloy plate, the metal composite adhesive board of 120MPa for yield strength.
Replaceable type limitation locking damping energy-dissipating device of the present invention is at least arranged in the side of bridge pier, and should ensure that every a slice beam body at least arranges a replaceable type limitation locking damping energy-dissipating device, and should ensure reliably to be connected with beam body and bridge pier respectively from replaceable type limitation locking damping energy-dissipating device two ends.
Damping energy-dissipating device and self-locking device combinationally use by the present invention, make full use of the feature of two kinds of devices, reach the object of self-locking and energy-dissipating and shock-absorbing under geological process.Under seismic loading, if metallic composite power consumption plate 2 consumes energy destroy, the metallic composite of destruction power consumption plate 2 can be cut away, power consumption plate new in welding; Under geological process, if welding H-bar 1 gross distortion destroys, welding H-bar 1 can be removed, replace new welding H-bar 1; If under geological process, high-strength bolt 4 destroys, and the bolt 4 of destruction can be removed, replace new high-strength bolt 4; After geological process, self-locking card buckle 6 and interlocking clamp buckle 9 lock, and are pulled down by draw-in groove case 7, self-locking card buckle 6 and interlocking clamp buckle 9 are resetted.Thus replaceable type limitation locking damping energy-dissipating device is used under repeatedly earthquake.
In actual installation process, first energy-dissipating device and girder are bolted, then draw-in groove case and energy-dissipating device are bolted, finally regulate the position of self-locking card buckle to be welded with pre-embedded steel slab by pinch plate.
Compared with prior art, advantage of the present invention is:
(1) under normal usage, this device does not change the stress system of simply supported girder bridge and continuous girder bridge.
(2) when earthquake occurs, after malformation exceedes desired value, bridge pier and the locking of beam body are changed type of attachment by self-locking device, reduce agent structure deform ation prevention bridge and to fall beam destruction.
(3) when earthquake occurs, at steel beam flange and the web place of the original steel of displacement, metal composite Energy dissipating material takes the lead in surrendering, and forms plastic hinge and enters the power consumption stage, and have good ductility.
(4) after the earthquake, only need to change metal composite Energy dissipating material and self-locking pinch plate and interlocking are determined strengthen maintenance and the recycling that pinch plate reset can realize structure.
(5) material therefor is with low cost, simple structure, and effective restrainer, anti seismic efficiency is good.
Accompanying drawing explanation
Fig. 1 is replaceable type limitation locking damping energy-dissipating device side schematic view.
Fig. 2 is the lower sectional view of replaceable type limitation locking damping energy-dissipating device along Figure 1A-A cross section.
Fig. 3 is the lower sectional view in replaceable type limitation locking damping energy-dissipating device Figure 1B-B cross section.
Fig. 4 is replaceable type limitation locking damping energy-dissipating device three-dimensional side view.
Fig. 5 is the lower sectional view in replaceable type limitation locking damping energy-dissipating device Fig. 1 C-C cross section.
Fig. 6 is the right sectional view in replaceable type limitation locking damping energy-dissipating device Fig. 1 D-D cross section.
Fig. 7 is the overall side schematic view of replaceable type limitation locking damping energy-dissipating device and surrounding enviroment.
Fig. 8 is the side schematic view that replaceable type limitation locking damping energy-dissipating device is arranged in bridge construction.
In figure: the power consumption of 1-welding H-bar, 2-metallic composite plate, 3-diaphragm, 4-high-strength bolt, 5-preventing rubber pad, 6-self-locking card buckle, 7-draw-in groove case, 8-draw-in groove cover plate, 9-interlocking clamp buckle, 10-pre-embedded steel slab, 11-bridge pier, 12-beam body, 13-bearing, 14-replaceable type limitation locking damping energy-dissipating device.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Be structure chart of the present invention as shown in Figures 1 to 6, replaceable type limitation locking damping energy-dissipating device, comprises welding H-bar 1, metallic composite power consumption plate 2, diaphragm 3, high-strength bolt 4, preventing rubber pad 5, self-locking card buckle 6, draw-in groove case 7, draw-in groove cover plate 8, interlocking clamp buckle 9, pre-embedded steel slab 10, the web of welding H-bar 1 and edge of a wing cutting are replaced into metal composite power consumption plate 2, two diaphragms 3 that interval is placed are connected at the two ends of welding H-bar 1, the outermost diaphragm 3 of one end is connected with draw-in groove case 7, the side sidewall of draw-in groove case 7 is provided with protruding interlocking clamp buckle 9, the sidewall relative with being provided with interlocking clamp buckle 9 is slotted, self-locking card buckle 6 has deeply been stretched into from described groove, self-fastening button clamp 6 is end gradual change projection, the steel plate of middle opening, the end of self-fastening button clamp 6 projection is positioned at draw-in groove case 7 and size is greater than the fluting size on draw-in groove case 7, self-fastening button clamp 6 can not skid off from the fluting on draw-in groove case 7, the opening of self-fastening button clamp 6 is just relative with the projection of interlocking clamp buckle 9, when self-locking card buckle 6 exceedes limit value at geological process bottom offset, crimp is there is in self-locking card buckle 6 end under the effect of draw-in groove case 7, self-locking card buckle 6 slips into interlocking clamp buckle 9 side of draw-in groove case 7, along with the continuation of displacement increases, self-locking card buckle 6 contacts with interlocking clamp buckle 9, under extruding force effect, outstanding interlocking clamp buckle 9 will put in the opening of self-locking card buckle 6, realize locking, self-fastening button clamp 6 end is connected with the pre-embedded steel slab 10 for being connected with bridge pier and post, is provided with in the inside of draw-in groove case 7 and pre-embedded steel slab 10 the preventing rubber pad 5 collided for reducing device near the side of draw-in groove case 7, the draw-in groove cover plate 8 for the protection of draw-in groove case 7 inner part is also provided with in the sidewall locations of draw-in groove case 7, be connected by high-strength bolt 4 between diaphragm 3 with draw-in groove case 7, the side diaphragm 3 not being connected with draw-in groove case 7 is connected with parts such as Liang Ti by high-strength bolt 4.After the malformation under earthquake exceedes desired value, interlocking clamp buckle 9 and self-locking card buckle 6 can lock mutually, change type of attachment, make metallic composite power consumption plate 2 produce larger reciprocal transformation and reduce agent structure distortion simultaneously, realize the energy-dissipating and shock-absorbing of metallic composite, after geological process, the metallic composite of destruction power consumption plate 2 is replaced into new power consumption plate, self-locking card buckle 6 and interlocking clamp buckle 9 is resetted thus reaches the object consumed energy under repeatedly geological process.
Metallic composite power consumption plate 2 can be replaced, and its material is the adhesive board for aluminium alloy plate or mild steel and lead.
Self-locking card buckle 6 and draw-in groove cover plate 8 steel yield strength are more than or equal to 235MPa, and interlocking clamp buckle 9 and draw-in groove case 7 steel yield strength are more than or equal to 345MPa.Interlocking clamp buckle 9 is all connected by mechanical welding manner with draw-in groove case 7 with between self-locking card buckle 6 with pre-embedded steel slab 10, and weld seam grade is one-level; Preventing rubber pad 5 and all being bondd by high-strength structureal adhesives between draw-in groove case 7 sidewall and bridge pier pre-embedded steel slab 10.Self-locking card buckle 6 and interlocking clamp buckle 9 dop bevel inclination angle are 25 ° to 30 °.Inside draw-in groove case 7, keeper and self-locking card buckle 6 leading inside bevel inclination angle are 25 ° to 30 °.Pour into lubrication oil in draw-in groove case 7 and protection and lubrication are played to self-locking device.Draw-in groove case 7 is between 35mm to 50mm apart from bridge pier sidewall distance.
Symmetrical cutting on the frange plate of welding H-bar 1, frange plate both sides cutting part curve shape is symmetrical circular arc line, and the vertical distance c of circular arc line summit and interdependent flange edges is 20% to 25% of frange plate thickness, the Breadth Maximum b of one side wing edge cutting part is 65% to 85% of i beam height h, the edge of a wing is 50% to 70% of frange plate width near the cut point distance end plate distance a of end diaphragm, and frange plate cutting part thickness is identical with frange plate thickness; Web cutting part is circular, prolongs the center of circle, web length direction and frange plate cutting part circular curve summit is positioned at same i iron 1 cross section; Web cutting profile is circular, and radius of circle r is 20% to 25% of web height, and web cutting thickness is identical with web thickness; Interior diaphragm is that the cut point of the edge of a wing near end diaphragm is apart from 40% to 50% of end plate distance a apart from the distance d of end diaphragm; Described metal composite power consumption plate 2 is by metal damper, frcition damper, viscoelastic damper.
Preventing rubber pad 5 material is weather-proof rubber; Metallic composite power consumption plate 2 is less than mild steel, aluminium alloy plate, the metal composite adhesive board of 120MPa for yield strength.
Replaceable type limitation locking damping energy-dissipating device of the present invention is at least arranged in the side of bridge pier, and should ensure that every a slice beam body at least arranges a replaceable type limitation locking damping energy-dissipating device, and should ensure reliably to be connected with beam body and bridge pier respectively from replaceable type limitation locking damping energy-dissipating device two ends.
The present invention just damping energy-dissipating device and self-locking device combinationally uses, and makes full use of the feature of two kinds of devices, reaches the object of self-locking and energy-dissipating and shock-absorbing under geological process.Under seismic loading, if metallic composite power consumption plate 2 consumes energy destroy, the metallic composite of destruction power consumption plate 2 can be cut away, power consumption plate new in welding; Under geological process, if welding H-bar 1 gross distortion destroys, welding H-bar 1 can be removed, replace new welding H-bar 1; If under geological process, high-strength bolt 4 destroys, and the bolt 4 of destruction can be removed, replace new high-strength bolt 4; After geological process, self-locking card buckle 6 and interlocking clamp buckle 9 lock, and are pulled down by draw-in groove case 7, self-locking card buckle 6 and interlocking clamp buckle 9 are resetted.Thus replaceable type limitation locking damping energy-dissipating device is used under repeatedly earthquake.As shown in Figure 7 and Figure 8, certain simply supported beam viaduct is positioned at urban loop trunk line, is in 8 degree of districts that provide fortification against earthquakes.In order to prevent bridge fall under geological process beam destroy, adopt replaceable type limitation locking damping energy-dissipating device of the present invention to carry out anti-seismic construction.First, in the bridge construction stage, pre-embedded steel slab 10 is arranged in bridge pier sidewall apart from bridge pier end face 1.0m position, drills through bolt hole at beam body base plate apart from bridge pier sidewall 0.8m place.Secondly, steel plate cut into the web of welding H-bar 1, frange plate and diaphragm in processing factory; The high 350mm of welding H-bar 1, wide 350mm, the thick 8mm of web, edge of a wing thickness of slab 12mm, tabula thickness of slab 12mm.Welding H-bar 1 web, frange plate cutting are replaced as metal composite power consumption plate 2, the vertical distance 88mm of frange plate cutting arc shape work piece line summit and interdependent flange edges, the Breadth Maximum of one side wing edge cutting part is 366mm, the edge of a wing is 210mm near the cut point distance end plate distance of end diaphragm, web cutting circular diameter 88mm.Web, frange plate and diaphragm are welded into i iron, and interior diaphragm and corresponding side diaphragm distance are 100mm.Then, at precision machine tool processing draw-in groove case 7, self-locking card buckle 6 and interlocking clamp buckle 9, draw-in groove case 7 length and height are 350mm, width is 344mm, self-locking card buckle 6 is identical with draw-in groove case 8 width with interlocking clamp buckle 7 width, draw-in groove cover plate 8 thickness 8mm, and width is identical with draw-in groove case 7 with height.Draw-in groove case 7 wall thickness 60mm, open height 140mm.The thick 130mm of self-locking card buckle 6, the thick 30mm of interlocking clamp buckle 9.Interlocking clamp buckle 9 and draw-in groove case 7 are welded as entirety.Draw-in groove case 7 is apart from side wall of bridge 35mm.Preventing rubber pad 5 thickness is 30mm, by high-strength structureal adhesives, preventing rubber 5 pad is pasted on draw-in groove case 7 sidewall.Bolt 4 adopts 8.8 grades of M20 high-strength bolts.Finally, welding H-bar 1 is connected by bolt 4 with draw-in groove case 7, i iron 1 is connected with beam body by bolt 4, regulate self-locking card buckle 6 position that pinch plate is welded on pre-embedded steel slab 10, in draw-in groove case 7, inject sliding agent, load onto draw-in groove cover plate 8.By arranging replaceable type limitation locking damping energy-dissipating device of the present invention, can effectively dissipate under geological process seismic energy and prevent bridge fall beam destruction.
Be more than an exemplary embodiments of the present invention, but enforcement of the present invention is not limited thereto.
Claims (5)
1. replaceable type limitation locking damping energy-dissipating device, comprises welding H-bar (1), metallic composite power consumption plate (2), diaphragm (3), high-strength bolt (4), preventing rubber pad (5), self-locking card buckle (6), draw-in groove case (7), draw-in groove cover plate (8), interlocking clamp buckle (9), pre-embedded steel slab (10), it is characterized in that: the web of welding H-bar (1) and edge of a wing cutting are replaced into metallic composite power consumption plate (2), two diaphragms (3) that interval is placed are connected at the two ends of welding H-bar (1), the outermost diaphragm (3) of one end is connected with draw-in groove case (7), the side sidewall of draw-in groove case (7) is provided with protruding interlocking clamp buckle (9), the sidewall relative with being provided with interlocking clamp buckle (9) is slotted, self-locking card buckle (6) has been stretched into from described groove, self-locking card buckle (6) is end gradual change projection, the steel plate of middle opening, the end of self-locking card buckle (6) projection is positioned at draw-in groove case (7) and size is greater than the fluting size on draw-in groove case (7), self-locking card buckle (6) can not skid off from the fluting on draw-in groove case (7), the opening of self-locking card buckle (6) is just relative with the projection of interlocking clamp buckle (9), self-locking card buckle (6) end is connected with the pre-embedded steel slab (10) for being connected with bridge pier and post, is provided with in the inside of draw-in groove case (7) and pre-embedded steel slab (10) the preventing rubber pad (5) collided for reducing device near the side of draw-in groove case (7), the draw-in groove cover plate (8) for the protection of draw-in groove case (7) inner part is also provided with in the sidewall locations of draw-in groove case (7), be connected by high-strength bolt (4) between diaphragm (3) with draw-in groove case (7), the side diaphragm (3) not being connected with draw-in groove case (7) is connected with beam body component by high-strength bolt (4).
2. replaceable type limitation locking damping energy-dissipating device according to claim 1, it is characterized in that: metallic composite power consumption plate (2) can be replaced, the material of described metallic composite power consumption plate (2) is aluminium alloy plate, mild steel and plumbous adhesive board.
3. replaceable type limitation locking damping energy-dissipating device according to claim 1, it is characterized in that: self-locking card buckle (6) and draw-in groove cover plate (8) steel yield strength are more than or equal to 235MPa, interlocking clamp buckle (9) and draw-in groove case (7) steel yield strength are more than or equal to 345MPa; Interlocking clamp buckle (9) is all connected by mechanical welding manner with draw-in groove case (7) with between self-locking card buckle (6) with pre-embedded steel slab (10), and weld seam grade is one-level; Preventing rubber pad (5) and all being bondd by high-strength structureal adhesives between draw-in groove case (7) sidewall and pre-embedded steel slab (10); Self-locking card buckle (6) and interlocking clamp buckle (9) dop bevel inclination angle are 25 ° to 30 °; Draw-in groove case (7) inner side keeper and self-locking card buckle (6) leading inside bevel inclination angle are 25 ° to 30 °; Pour into lubrication oil in draw-in groove case (7) and protection and lubrication are played to self-locking device; Draw-in groove case (7) is between 35mm to 50mm apart from bridge pier sidewall distance.
4. replaceable type limitation locking damping energy-dissipating device according to claim 1, it is characterized in that: symmetrical cutting on the frange plate of welding H-bar (1), frange plate both sides cutting part curve shape is symmetrical circular arc line, the edge of a wing is 50% to 70% of frange plate width near the cut point distance end diaphragm distance a of end diaphragm, and frange plate cutting part thickness is identical with frange plate thickness; Web cutting part is circular, prolongs the center of circle, web length direction and frange plate cutting part circular curve summit is positioned at same welding H-bar (1) cross section; Web cutting profile is circular, and web cutting thickness is identical with web thickness; Interior diaphragm is that the cut point of the edge of a wing near end diaphragm is apart from 40% to 50% of end diaphragm distance a apart from the distance d of end diaphragm.
5. the replaceable type limitation locking damping energy-dissipating device according to the arbitrary claim of claim 1,2 or 3, is characterized in that: preventing rubber pad (5) material is weather-proof rubber; Metallic composite power consumption plate (2) is less than the mild steel plate of 120MPa, aluminium alloy plate or metal adhesive board for yield strength.
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| CN201210444608.4A CN103088751B (en) | 2012-11-08 | 2012-11-08 | Replaceable limiting and locking damping energy consumption device |
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| CN201210444608.4A CN103088751B (en) | 2012-11-08 | 2012-11-08 | Replaceable limiting and locking damping energy consumption device |
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| CN105507440B (en) * | 2015-11-24 | 2017-07-28 | 北京工业大学 | Palace form box mild steel damper |
| CN107419663B (en) * | 2017-05-20 | 2018-11-06 | 浙江浩龙风机有限公司 | A kind of bridge construction damping device |
| CN108301327B (en) * | 2018-01-22 | 2018-11-09 | 徐健 | Bridge construction anti-drop device |
| CN108457169B (en) * | 2018-02-10 | 2019-01-18 | 郑州航空工业管理学院 | Bridge earthquake resistance damping device |
| CN113897854A (en) * | 2021-10-10 | 2022-01-07 | 北京工业大学 | Built-in power consumption aluminium-thoughtlessly sway assembled pier system of wall |
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| 新型复合式金属阻尼器在桥梁减震控制中的应用;闫维明等;《北京工业大学学报》;20120831(第8期);第1167-1173页 * |
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