Bridge separates shock attenuation mild steel damping device
Technical Field
The invention relates to the technical field of bridge damping devices, in particular to a bridge shock insulation and absorption soft steel damping device.
Background
A bridge, which is generally a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through; because the vehicle can produce vibration when driving over the bridge surface, consequently the bridge is inside to be provided with damping device, and traditional damping device is the rubber material usually, and the toughness of rubber changes along with the temperature change, and then leads to its dynamic behavior unstability.
In order to avoid the phenomenon of unstable dynamic performance, the existing damping devices are usually combined with springs and anti-seismic materials for use, but the combined damping devices are single in form and cannot meet the requirements of different amplitudes, and particularly when an earthquake occurs and vehicles still run on the surface of a bridge, the damping devices cannot simultaneously deal with double vibration generated by transverse vibration and longitudinal load, so that the phenomenon of bridge damage and human death is caused; in addition, in order to improve the rigidity of the bridge, concrete and steel materials are often mixed for use, dust and debris are attached to the surface of the steel materials after the steel materials are used for a period of time, and the original working performance of the steel materials is affected if the steel materials are not processed in time, so that the bridge shock insulation and absorption soft steel damping device is produced at the beginning.
Disclosure of Invention
In order to realize the purposes that the bridge can resist earthquakes with certain intensity and can clean dust and debris on the surface of a steel structure in daily use by controlling the size of the longitudinal load according to the strength of the transverse vibration, the invention provides the following technical scheme: the utility model provides a bridge separates shock attenuation mild steel damping device, includes the pontic, the inside swing joint of pontic has damping spring, damping spring's fixed surface is connected with the guide bar, and the top swing joint of guide bar has the bracing piece, and the surface swing joint of bracing piece has the draw-in groove, one side swing joint that the bracing piece was kept away from to the draw-in groove has antitorque case, and the surface swing joint of antitorque case has the buffering bag, and the top swing joint of buffering bag has the pivot, and the top swing joint of pivot has the rotor plate, and one side swing joint that the pivot was kept away from.
Preferably, the torsion box is movably connected with a torsion spring inside, and the torsion spring plays a role in resisting forces in different directions and preventing the forces in different directions from directly contacting and damaging components.
Preferably, the bottom of the buffer bag is movably connected with a spring rod which plays a role in resisting longitudinal vibration.
Preferably, the interior of the spring rod is movably connected with an airflow pipe, and the airflow pipe plays a role in conveying gas to clean dust on the surface of the steel member.
Preferably, the exhaust plate is fixedly connected to the inner part of the protruding block, and the heat generated by friction between the protruding plate and the bridge body can be reduced by flowing out of the exhaust plate, so that the temperature holding rigidity of the steel member is reduced.
Preferably, the inner side wall of the bridge body is hinged to one end of a supporting rod, and the other end of the supporting rod extends to the position right above the guide rod in an upward inclined mode.
Preferably, the support rod is matched with the clamping groove in size.
Preferably, the clamping groove is movably connected with the rotating plate.
The invention has the beneficial effects that:
1. through installing each position in the bottom of the pontic, when meetting earthquake and when having the vehicle on the bridge floor, because rocking that the earthquake caused is on the horizontal direction, the event can extrude the inside bracing piece of pontic, and the bracing piece is the inclined plane design, the in-process that the event bracing piece removed can reduce the confining force to the damping spring of guide bar bottom, damping spring release elasticity promotes the bracing piece limit and removes the limit and upwards rotate promptly, it is shown in figure 4 to push away the arch bar from the pontic surface, thereby reached and made the bridge separation according to the size of the dynamics control longitudinal load of horizontal vibrations, guarantee that the pontic can not split and protect the effect of vehicle safety. 2. Through the meshing of above-mentioned bracing piece and draw-in groove, promote protruding board and keep away from the pontic, and at the in-process that protruding board was promoted, the bracing piece promotes the draw-in groove to the in-process that is close to the pivot and removes, can extrude the inside torsion spring of antitorque box, torsion spring warp the extrusion buffering bag, the heat that the friction produced between the board and the pontic can be reduced from the air discharge plate outflow, reduce steel member temperature and keep rigidity, can blow on steel member surface from the flowing out of air current pipe, thereby the clastic effect of dust of clearance steel construction surface has been reached.
Drawings
FIG. 1 is a schematic view of a bridge structure according to the present invention;
FIG. 2 is a cross-sectional view of a bridge construction according to the present invention;
FIG. 3 is a schematic view of the bump plate structure of the present invention shown before being pushed out;
FIG. 4 is a schematic view of the projection plate structure of the present invention being pushed out;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
FIG. 6 is a schematic view of the support rod structure of the present invention when not moved;
FIG. 7 is a schematic view of the support rod structure of the present invention after being moved;
FIG. 8 is a top view of the rotating plate structure of the present invention.
In the figure: 1-bridge body, 2-damping spring, 3-guide rod, 4-support rod, 5-clamping groove, 6-torsion box, 7-buffer bag, 8-rotating shaft, 9-rotating plate, 10-convex plate, 11-torsion spring, 12-spring rod, 13-airflow tube and 14-exhaust plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a damping device for shock insulation and absorption of a bridge comprises a bridge body 1, wherein a damping spring 2 is movably connected to the inner bottom of the bridge body 1, a guide rod 3 is fixedly connected to the top of the damping spring 2, one end of a support rod 4 is hinged to the inner side wall of the bridge body 1, the other end of the support rod 4 extends to the position right above the guide rod 3 in an upward inclined manner, the top of the guide rod 3 is hinged to the lower side wall of the support rod 4, the other end of the support rod 4 is inserted into a clamping groove 5, the other end of the support rod 4 is matched with the size of the clamping groove 5, the clamping groove 5 is movably connected with a rotating plate 9, one side of the clamping groove 5, which is far away from the support rod 4, is movably connected with an anti-torsion box 6, the torsion spring 11 is movably connected inside the anti-torsion box 6, the torsion spring 11 plays a role in resisting forces in.
Bottom swing joint of buffering bag 7 has spring beam 12, spring beam 12 plays the effect of resisting longitudinal vibration, the inside swing joint of spring beam 12 has air current pipe 13, air current pipe 13 plays the effect of conveying gas clearance steel member surface dust, the top swing joint of buffering bag 7 has pivot 8, because rocking that the earthquake caused is on the horizontal direction, the event can extrude 1 inside bracing piece 4 of pontic, bracing piece 4 receives the extrusion can be rotatory to the direction that is close to pivot 8 at the restriction of hinge, and bracing piece 4 is the inclined plane design, the event bracing piece 4 pivoted in-process can reduce the confining force to the damping spring 2 of 3 bottoms of guide bar, damping spring 2 releases elasticity and promotes bracing piece 4 upwards to rotate promptly.
The top end of the rotating shaft 8 is movably connected with a rotating plate 9, the rotating plate 9 is a part which is pushed by force to rotate and extend, and after being pushed, as shown in fig. 8, one side of the rotating plate 9, which is far away from the rotating shaft 8, is movably connected with a protruding plate 10, the supporting rod 4 is meshed with the clamping groove 5, the protruding plate 10 is pushed to move slightly upwards, and the moving state is as shown in fig. 4, the rotating shaft 8 is driven to rotate, along with the increase of the moving times of the protruding plate 10, the rotating shaft 8 drives the rotating plate 9 to gradually extend, after the rotating plate 9 extends, the extending area of the rotating plate can cover the bridge body 1 to play a role in protecting the bridge body 1, so that the supporting rod 4 is inserted into the clamping groove 5 to; the exhaust plate 14 is fixedly connected to the top of the convex block 10, and the gas flowing out of the exhaust plate 14 can reduce the heat generated by friction between the convex block 10 and the bridge body 1 and reduce the temperature holding rigidity of the steel member.
When the earthquake-proof bridge is used, all parts are arranged at the bottom of the bridge body 1, when an earthquake occurs and vehicles are arranged on the bridge floor, longitudinal dynamic load, namely longitudinal vibration, is caused to the bridge body 1 when the vehicles on the bridge floor run, the vehicles downwards extrude the convex plates 10, so the clamping grooves 5 are gradually contacted with the supporting rods 4, when the two are contacted and clamped, the convex plates 10 are pushed away from the surface of the bridge body 1 due to the fact that the vibration generated by the earthquake is far greater than the vibration generated by the vehicles, and the effects of controlling the size of the longitudinal load according to the strength of the transverse vibration, separating the bridge, ensuring that the bridge body 1 cannot break and protecting the safety of the vehicles are; through the meshing of above-mentioned bracing piece 4 and draw-in groove 5, promote protruding board 10 and keep away from pontic 1, and the in-process that is pushed up at protruding board 10, bracing piece 4 promotes draw-in groove 5 to the in-process that is close to the 8 removals of pivot, can extrude torsion spring 11 inside antitorque case 6 when draw-in groove 5 pegs graft with bracing piece 4, torsion spring 11 warp extrusion buffering bag 7, buffering bag 7 produces deformation and extrudes its inside gas, gas flows from two directions of air discharge plate 14 and airflow tube 13 respectively, the gas that flows from airflow tube 13 can be blown on the steel member surface, play the clastic effect of dust of clearance steel structure surface.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.