CN113494048A - Anti-seismic device for highway bridge - Google Patents
Anti-seismic device for highway bridge Download PDFInfo
- Publication number
- CN113494048A CN113494048A CN202110881454.4A CN202110881454A CN113494048A CN 113494048 A CN113494048 A CN 113494048A CN 202110881454 A CN202110881454 A CN 202110881454A CN 113494048 A CN113494048 A CN 113494048A
- Authority
- CN
- China
- Prior art keywords
- plate
- buffer
- fixedly arranged
- seat
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
Abstract
The invention belongs to the technical field of bridges, and particularly relates to an anti-seismic device for a highway bridge, which comprises a lower seat plate and an upper seat plate; a lower basin plate is fixedly arranged on the upper surface of the lower seat plate; an upper basin plate is fixedly arranged on the lower surface of the upper seat plate; a positioning column is fixedly arranged at the middle position on the lower surface of the upper seat plate; a first rubber block is fixedly arranged in the lower basin plate; the upper surface of the first rubber block is in contact with the lower surface of the upper basin plate; the lower surface of the first rubber block is in contact with the upper surface of the lower basin plate; a buffer is fixedly arranged between the upper seat plate and the lower seat plate; the bridge has the advantages of simple structure, convenience in installation, capability of effectively reducing and resisting impact and vibration in the vertical direction and the horizontal direction, good anti-seismic performance and capability of improving the safety of a bridge.
Description
Technical Field
The invention belongs to the technical field of bridges, and particularly relates to an anti-seismic device for a highway bridge.
Background
The bridge is an overhead artificial channel and consists of an upper structure, a lower structure and an auxiliary structure, wherein the upper structure comprises a bridge body and a bridge floor, and the upper structure is in the form of a simple beam, a continuous beam, a rigid frame bridge, an arch bridge, a suspension bridge, a cable-stayed bridge and the like. The lower structure is in the form of bridge piers and bridge abutments, and the foundation is in the form of an enlarged foundation, a pile foundation, an underground continuous wall foundation and the like. The auxiliary structure comprises a guardrail, a sidewalk, an expansion joint, a support, a butt strap and the like. Meanwhile, in the bridge construction process, the base part of the bridge is subjected to damping treatment, so that the device can reduce stress between bridge parts and prolong the service life of the bridge.
The invention also has some technical proposals related to bridge bearings in the prior art, for example, Chinese patent with application number CN201621253916.9 discloses a road bridge buffering and damping device, which comprises a support plate connected with a bridge and a support base connected with a pier, wherein the lower side of the support plate is provided with a plurality of upper fixed blocks, the upper side of the support base is provided with a plurality of lower fixed blocks vertically corresponding to the upper fixed blocks, a support spring is arranged between the upper fixed blocks and the lower fixed blocks, the left and right ends of the lower side of the support plate are provided with support columns, the left and right ends of the upper side of the support base are provided with outer sleeves vertically corresponding to the support columns, an inner sleeve is slidably sleeved on the support columns between a first annular flange and a second annular flange, and an elastic material is filled between the outer side of an annular groove and the inner wall of the outer sleeve, the bridge has not only produced very big vertical force still has the horizontal force, makes prefabricated bridge plate take place horizontal displacement and displacement from top to bottom, after the displacement volume surpassed prefabricated bridge plate and shelved the width on the pier, and the bridge at this moment does not have anti-overturning device, causes the accident of toppling easily, and not only the bridge receives the damage, and the major incident can all appear in pedestrian and the vehicle on the bridge, under the bridge in addition.
Disclosure of Invention
The invention provides an anti-seismic device for a highway bridge, which aims to make up the defects of the prior art, improve the anti-seismic performance of the bridge, prevent the bridge from vibrating under the action of external impact or vibration to influence the stability of the bridge, simultaneously improve the damping and anti-seismic performance of the bridge on horizontal displacement and vibration during earthquake, and improve the anti-seismic effect and safety of the bridge.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an anti-seismic device for a highway bridge, which comprises a lower seat plate and an upper seat plate; the lower base plate is fixedly arranged on the pier through bolts; the upper seat plate is fixedly arranged on a beam plate of the bridge through bolts; a lower basin plate is fixedly arranged on the upper surface of the lower seat plate; an upper basin plate is fixedly arranged on the lower surface of the upper seat plate; the inner diameter of the upper basin plate is larger than the outer diameter of the lower basin plate, and the upper end of the lower basin plate is inserted into the inner side of the upper basin plate; the lower surface of the upper seat plate is fixedly provided with a positioning column; the positioning column is positioned in the middle of the upper basin plate, and the height of the positioning column is equal to that of the upper basin plate; a first rubber block is fixedly arranged in the lower basin plate, and the diameter of the first rubber block is smaller than or equal to the inner diameter of the lower basin plate; a through hole is formed in the middle of the first rubber block, and the positioning column is inserted into the through hole; the upper surface of the first rubber block is in contact with the lower surface of the upper basin plate; the lower surface of the first rubber block is in contact with the upper surface of the lower basin plate;
a buffer is fixedly arranged between the upper seat plate and the lower seat plate; the buffer is divided into a first buffer and a second buffer, and the installation directions of the first buffer and the second buffer are opposite; the structure of the first buffer is the same as that of the second buffer; the first buffer and the second buffer are symmetrically arranged around the center line of the positioning column; the buffer comprises a damping cylinder and a piston plate; the piston plate is slidably arranged in the damping cylinder, and the piston plate and the damping cylinder are relatively sealed;
a piston plate in a shock absorption cylinder in the first buffer is fixedly provided with a first piston rod; one end of the piston rod, which is far away from the piston plate, extends out of the shock absorption cylinder; one end of the piston rod, which is positioned outside the shock absorption cylinder, is fixedly arranged on the lower surface of the upper seat plate; a first fixing rod is fixedly arranged on the end face, far away from the first piston rod, of the damping cylinder in the first buffer; one end of the fixed rod, which is far away from the shock absorption cylinder, is fixedly arranged on the upper surface of the lower seat plate; the space above the piston plate in the shock absorption cylinder in the first buffer is a second space; the space below the piston plate in the shock absorption cylinder in the first buffer is a space IV;
a piston plate in a damping cylinder in the second buffer is fixedly provided with a second piston rod; one end of the piston rod II, which is far away from the piston plate, extends out of the shock absorption cylinder; one end of the piston rod, which is positioned outside the shock absorption cylinder, is arranged on the upper surface of the lower seat plate; a second fixing rod is fixedly arranged on the end face, far away from the second piston rod, of the damping cylinder in the second buffer; one end of the second fixing rod, far away from the shock absorption cylinder, is fixedly arranged on the lower surface of the upper seat plate; the space above the piston plate in the shock absorption cylinder in the second buffer is a first space; the space below the piston plate in the shock absorption cylinder in the second buffer is a third space;
the first space and the second space are communicated with each other through a pressure-resistant pipe I, and dimethyl silicone oil is filled in the first space and the second space; the space III and the space IV are communicated with each other through a pressure-resistant pipe II, and dimethyl silicone oil is filled in the space III and the space IV;
when the anti-seismic device works, the lower seat plate is fixedly installed on a bridge pier through the bolts in the using process, then the upper seat plate is fixedly installed on a beam plate of a bridge through the bolts, the installation of the anti-seismic device is completed, meanwhile, in the using process, impact and vibration between the beam plate of the bridge and the bridge pier are transmitted through the rubber block I, and the impact and vibration are buffered and reduced in the transmission process, so that the vibration generated in the vehicle passing process is reduced, the anti-seismic effect of the bridge is ensured, the influence of the vibration generated when the bridge runs by vehicles in the long-term use process is reduced, the service life of the bridge is prolonged, meanwhile, in the using process, the buffer installed between the upper seat plate and the lower seat plate can further generate the anti-seismic and buffer effects, and the resistance of the anti-seismic device to the vibration of the bridge influenced by the vehicles in the running process is improved, the anti-seismic device has the advantages that the anti-seismic effect is improved, meanwhile, the buffer arranged between the upper seat plate and the lower seat plate can share the pressure borne by the rubber block to a certain extent, the aging speed of the rubber block under the action of external force is delayed, the service life of the rubber block is prolonged, the time interval for replacing and maintaining the anti-seismic device is prolonged, and therefore the use cost of the anti-seismic device is reduced;
meanwhile, because the buffer comprises a first buffer and a second buffer, and the first buffer and the second buffer are symmetrically installed around the central line of the positioning column, when a plurality of vehicles run on the same side of the bridge at the same time to cause unbalanced stress of the bridge and incline the bridge to the side direction, the upper seat plate is synchronously inclined along with the beam plate of the bridge to cause the upper seat plate to incline relative to the lower seat plate, meanwhile, after the upper seat plate is inclined relative to the lower seat plate, the first buffer and the second buffer are synchronously acted by external force, meanwhile, because the first buffer and the second buffer are symmetrically installed and the first buffer and the second buffer are opposite in installation direction, when the upper seat plate is inclined, the first piston rod in the first buffer moves downwards to drive the piston plate to move downwards, the second space in the first buffer is expanded, the fourth space is reduced, and simultaneously, when the upper seat plate is inclined, the damping cylinder in the second buffer moves upwards to enable the piston plate in the second buffer to move downwards relatively, so that the first space in the second buffer is enlarged, the third space in the second buffer is reduced, and meanwhile, the first space is communicated with the second space and the third space is communicated with the fourth space, so that when the upper seat plate inclines, the sizes of the first space, the second space, the third space and the fourth space tend to be unchanged, the changes of the first buffer and the second buffer are prevented, the upper seat plate resists the inclination tendency to a certain degree, the horizontal state is maintained, the possibility that the beam plate of the bridge inclines or even topples is reduced, and the safety of the bridge is improved;
meanwhile, in the using process, the internal spaces of the first buffer and the second buffer are communicated with each other through the first pressure-resistant pipe and the second pressure-resistant pipe, so that the pressure of a single buffer can be dispersed to a certain degree, the bearing capacity of the first buffer and the second buffer is expanded, and the application range and the anti-seismic effect of the anti-seismic device are improved.
Preferably, an adjustable throttle valve is fixedly mounted on the first pressure-resistant pipe; an adjustable throttle valve is fixedly arranged on the pressure pipe II;
during operation, in the use, through the flow size of the adjustable choke valve of adjustment on withstand voltage pipe one and withstand voltage pipe two, change the circulation speed of the dimethyl silicon oil who fills in buffer one and the two inner spaces of buffer, change the damping loss degree that exists among the flow process, thereby change the subduction effect of the vibration that buffer one and buffer two pairs of vehicles travel in-process produced, thereby promote anti-seismic device's antidetonation effect, and simultaneously, through the adjustment to adjustable choke valve, can change buffer one and buffer two and receive exogenic action at the beam slab of bridge, produce the time that the horizontal state needs of recovering after the slope trend, guarantee that the anti-seismic performance of bridge accords with the design requirement.
Preferably, a first flexible seat is fixedly mounted on the lower surface of the upper seat plate; the number of the first flexible seats is the sum of the number of the first buffers and the number of the second buffers; a flexible seat II is fixedly arranged on the upper surface of the lower seat plate; the flexible bases II are multiple in number and correspond to the flexible bases I one by one; the structure of the first flexible seat is the same as that of the second flexible seat; a rubber block II is filled in the flexible seat I; an installation cavity is formed in the second rubber block; the extrusion plate is fixedly arranged in the mounting cavity in an interference fit mode;
one end, far away from the shock absorption cylinder, of a piston rod I on the buffer I is fixedly arranged on a squeezing plate in a flexible seat I on the lower surface of an upper seat plate; one end of a fixing rod I on the buffer I, which is far away from the shock absorption cylinder, is fixedly arranged on a squeezing plate in a flexible seat II on the upper surface of the lower seat plate;
one end of a piston rod II on the buffer II, which is far away from the shock absorption cylinder, is fixedly arranged on a squeezing plate in a flexible seat II on the upper surface of the lower seat plate; one end of a fixed rod II on the buffer II, which is far away from the shock absorption cylinder, is fixedly arranged on the extrusion plate in the flexible seat I on the lower surface of the upper seat plate;
when the device works, when a plurality of vehicles run on the same side of the bridge at the same time, so that the stress of the bridge is unbalanced, and the bridge inclines laterally, the first buffer and the second buffer which are positioned at symmetrical positions between the upper seat plate and the lower seat plate tend to incline under the action of the upper seat plate, meanwhile, as the first buffer and the second buffer are fixedly installed through the flexible seats, the first piston rod in the first buffer drives the extrusion plate in the first flexible seat to deviate, the first fixing rod in the first buffer presses the second rubber block, the first fixing rod in the first buffer drives the extrusion plate in the second flexible seat to deviate, the second rubber block is pressed, the second piston rod in the second buffer drives the extrusion plate in the second flexible seat to deviate, the second rubber block is pressed and deformed through the extrusion plate, therefore, the first buffer and the second buffer rotate to a certain degree, namely, the first buffer and the second buffer are prevented from being bent or damaged after long-term use due to overlarge bending moment when the upper seat plate tilts, so that the normal use and the service life of the first buffer and the second buffer are influenced, meanwhile, the first buffer and the second buffer can have certain deflection and tilting capabilities due to the action of the flexible seat in the use process, the first buffer and the second buffer can conveniently move along with the upper seat plate when the upper seat plate tilts, the buffering effect of the first buffer and the second buffer can be better exerted, the upper seat plate can be quickly promoted to return to the horizontal position after buffering is finished, and the possibility of bridge tilting is reduced, the safety of the bridge is improved;
simultaneously, in the use, when the condition such as earthquake appears in the bridge location, effect through flexible seat, can make the buffer between bedplate and the lower bedplate have certain removal space, reduce the buffer and receive the possibility that the damage appears after the transverse force when the earthquake, and simultaneously, effect through flexible seat, when the earthquake, make the buffer receive the effect of transverse force, certain slope back appears, the performance buffering, the cushioning effect, promote the antidetonation effect of antidetonation device, reduce the damage of earthquake to the bridge, promote the security of bridge.
Preferably, a polytetrafluoroethylene plate is fixedly mounted on the inner surface of the mounting cavity through glue; the thickness of the polytetrafluoroethylene plate is 2-3 mm; the surface of the extrusion plate is uniformly provided with bulges; the appearance of the bulge is hemispherical; the bulge on the surface of the extrusion plate is directly contacted with the polytetrafluoroethylene plate in the mounting cavity;
when the rubber block II extruding device works, the polytetrafluoroethylene plate is fixedly arranged on the inner wall of the mounting cavity, so that the friction force between the extruding plate and the rubber block II can be reduced, the possibility of damaging the rubber block II when the extruding plate extrudes the rubber block II is reduced, the service life of the rubber block II is prolonged, and meanwhile, in the using process, the phenomenon that the extruding plate is bonded with the rubber block II under the action of larger pressure to influence the normal use of the extruding plate and the rubber block II is prevented through the action of the polytetrafluoroethylene plate; simultaneously, in the use, through the hemispherical arch on the stripper plate surface, can promote the interact power between stripper plate and the polytetrafluoroethylene board to a certain extent, avoid the stripper plate when receiving external force, directly appear sliding on the surface of polytetrafluoroethylene board, lead to the stripper plate to too big to the pressure of the rubber piece two of one side, cause two damages of rubber piece, influence the life of rubber piece two.
Preferably, a lower rubber plate is fixedly arranged on the outer side surface of the lower basin plate through glue; the lower rubber plates are multiple in number and are uniformly distributed on the outer side surface of the lower basin plate; a gap I is formed between the lower rubber plates; an upper rubber plate is fixedly arranged on the inner side surface of the upper basin plate through glue; the upper rubber plates are multiple in number and are uniformly distributed on the inner side surface of the upper basin plate; a second space is formed between the lower rubber plates; the side surface of the lower rubber plate, which is far away from the lower basin plate, is coated with a polytetrafluoroethylene coating; the side surface of the upper rubber plate, which is far away from the upper basin plate, is coated with a polytetrafluoroethylene coating;
after the upper end of the lower pot plate is inserted into the inner side of the upper pot plate, the lower rubber plate is inserted into the first gap, and the upper rubber plate is inserted into the second gap;
when the device works, in the use process, when a vehicle passes through a bridge, under the influence of the dead weight of the vehicle, the beam plate of the bridge downwards extrudes the upper seat plate, so that the upper basin plate downwards moves, and the upper basin plate and the lower basin plate relatively move;
simultaneously, when the earthquake appears in the area of bridge place, go up the bedplate and appear sliding with lower bedplate in the horizontal direction, go up rubber slab and lower rubber slab and to last basin board and go up the relative movement between the basin board and produce certain buffering, subduct the effect, reduce the earthquake to the influence of bridge, improve the antidetonation effect of antidetonation device, avoid at the earthquake in-process, go up the basin board and move in the horizontal direction with lower basin board to the collision takes place, make the antidetonation device appear damaging, influence the normal use of antidetonation device.
Preferably, an elastic plate II is embedded in the upper rubber plate; the second elastic plate is made of 50CrV spring steel; the cross section of the second elastic plate is arc-shaped, and a central notch of the arc-shaped faces to the direction far away from the center of the upper basin plate;
an elastic plate I is embedded in the lower rubber plate; the first elastic plate is made of 50CrV spring steel; the cross section of the first elastic plate is arc-shaped, and a central notch of the arc-shaped faces to the direction close to the center of the lower basin plate;
the during operation, through bury elastic plate two in last rubber slab, bury elastic plate one in rubber slab down, effect through elastic plate one and elastic plate two, rubber slab and lower rubber slab are to the subduction effect of the impact of horizontal direction and vibration in the promotion, promote the antidetonation effect of antidetonation device, and simultaneously, enlarge the scope of bearing of going up rubber slab and lower rubber slab, rubber slab and lower rubber slab are after receiving too big horizontal direction's impact and vibration in the reduction, surpass the external force that rubber slab and lower rubber slab bore the scope, cause the damage to last rubber slab and lower rubber slab, reduce the influence to last rubber slab and lower rubber slab life.
The invention has the following beneficial effects:
1. the invention relates to an anti-seismic device for a highway bridge, which is characterized in that a first buffer and a second buffer are arranged between an upper seat plate and a lower seat plate, and the internal spaces of the first buffer and the second buffer are communicated with each other through a first pressure-resistant pipe and a second pressure-resistant pipe, so that when the first buffer and the second buffer are subjected to external force, dimethyl silicon oil filled in the first buffer and the second buffer flow mutually, the pressure balance of the internal spaces of the first buffer and the second buffer is maintained, the upper seat plate connected with the first buffer and the second buffer is kept in a horizontal state, the anti-seismic effect of the anti-seismic device and the anti-seismic device can be quickly restored to the original state after being inclined when the anti-seismic device is subjected to external impact or vibration, the horizontal capability is kept, the possibility that the bridge is inclined or even overturned in the using process is prevented, and the safety of the bridge is improved.
2. The anti-seismic device for the highway bridge has the advantages that under the action of the upper rubber plate and the lower rubber plate, when the upper basin plate and the lower basin plate move relatively, the upper rubber plate and the lower rubber plate seal a gap between the upper basin plate and the lower basin plate, direct contact between the upper basin plate and the lower basin plate is blocked, loss caused by friction between the upper basin plate and the lower basin plate is reduced, meanwhile, through the sealing action of the lower rubber plate and the upper rubber plate, impurities such as dust, stones and the like in the external environment can be prevented from entering the inner side of the lower basin plate, normal use of the rubber block I is influenced, the rubber block I is damaged, meanwhile, under the action of the upper rubber plate and the lower rubber plate, when the upper base plate and the lower base plate slide in the horizontal direction, the upper rubber plate and the lower rubber plate generate certain buffering and reducing effects on relative movement between the upper basin plate and the upper basin plate, and influence of an earthquake on the bridge is reduced, the anti-seismic effect of the anti-seismic device is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the construction of the seismic apparatus of the present invention;
FIG. 2 is a schematic structural view of an upper seat plate in the anti-seismic apparatus according to the present invention;
FIG. 3 is a schematic view of the structure of the lower seat plate in the anti-seismic device of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
in the figure: the adjustable cushion comprises a lower seat plate 1, a lower basin plate 11, a lower rubber plate 12, a first elastic plate 121, a first gap 122, an upper seat plate 2, a positioning column 21, an upper basin plate 22, an upper rubber plate 23, a second elastic plate 231, a second gap 232, a first rubber block 3, a through hole 31, a damping cylinder 4, a piston plate 41, a first piston rod 42, a first fixed rod 43, a first buffer 44, a second buffer 45, a first flexible seat 5, a second flexible seat 51, a second rubber block 52, an installation cavity 521, a squeezing plate 53, a bulge 531, a first pressure pipe 6, an adjustable throttle valve 61, a first space 62, a second space 63, a second pressure pipe 7, a third space 72 and a fourth space 73.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the anti-seismic device for a highway bridge according to the present invention includes a lower seat plate 1 and an upper seat plate 2; the lower base plate 1 is fixedly arranged on a pier through bolts; the upper seat plate 2 is fixedly arranged on a beam plate of a bridge through bolts; a lower basin plate 11 is fixedly arranged on the upper surface of the lower seat plate 1; an upper basin plate 22 is fixedly arranged on the lower surface of the upper seat plate 2; the inner diameter of the upper plate 22 is larger than the outer diameter of the lower plate 11, and the upper end of the lower plate 11 is inserted into the inner side of the upper plate 22; a positioning column 21 is fixedly arranged on the lower surface of the upper seat plate 2; the positioning column 21 is positioned in the middle of the upper basin plate 22, and the height of the positioning column 21 is equal to that of the upper basin plate 22; a rubber block I3 is fixedly arranged in the lower basin plate 11, and the diameter of the rubber block I3 is smaller than or equal to the inner diameter of the lower basin plate 11; a through hole 31 is formed in the middle of the rubber block I3, and the positioning column 21 is inserted into the through hole 31; the upper surface of the rubber block I3 is contacted with the lower surface of the upper basin plate 22; the lower surface of the rubber block I3 is in mutual contact with the upper surface of the lower basin plate 11;
a buffer is fixedly arranged between the upper seat plate 2 and the lower seat plate 1; the buffer is divided into a first buffer 44 and a second buffer 45, and the installation directions of the first buffer 44 and the second buffer 45 are opposite; the first buffer 44 and the second buffer 45 have the same structure; the first buffer 44 and the second buffer 45 are symmetrically arranged around the center line of the positioning column 21; the damper includes a damper cylinder 4, a piston plate 41; the piston plate 41 is slidably arranged in the shock absorption cylinder 4, and the piston plate and the shock absorption cylinder are relatively sealed;
a piston rod I42 is fixedly arranged on a piston plate 41 in the shock absorption cylinder 4 in the buffer I44; one end of the first piston rod 42, which is far away from the piston plate 41, extends out of the shock absorption cylinder 4; one end of the piston rod I42, which is positioned outside the shock absorption cylinder 4, is fixedly arranged on the lower surface of the upper seat plate 2; a first fixing rod 43 is fixedly arranged on the end face, far away from the first piston rod 42, of the shock absorption cylinder 4 in the first buffer 44; one end of the first fixing rod 43, which is far away from the shock absorption cylinder 4, is fixedly arranged on the upper surface of the lower seat plate 1; the space above the piston plate 41 in the shock absorption cylinder 4 in the first buffer 44 is a second space 63; the space below the piston plate 41 in the shock-absorbing cylinder 4 in the first damper 44 is a space four 73;
a piston plate 41 in the shock absorption cylinder 4 in the second buffer 45 is fixedly provided with a second piston rod; one end of the second piston rod, which is far away from the piston plate 41, extends out of the shock absorption cylinder 4; one end of the piston rod, which is positioned outside the shock absorption cylinder 4, is arranged on the upper surface of the lower seat plate 1; a second fixing rod is fixedly arranged on the end face, far away from the second piston rod, of the damping cylinder 4 in the second buffer 45; one end of the second fixing rod, which is far away from the shock absorption cylinder 4, is fixedly arranged on the lower surface of the upper seat plate 2; the space above the piston plate 41 in the shock absorption cylinder 4 in the second damper 45 is a first space 62; the space below the piston plate 41 in the shock absorption cylinder 4 in the second damper 45 is a third space 72;
the first space 62 and the second space 63 are communicated with each other through a pressure-resistant pipe I6, and dimethyl silicone oil is filled in the first space 62 and the second space 63; the space III 72 and the space IV 73 are communicated with each other through a pressure-resistant pipe II 7, and dimethyl silicone oil is filled in the space III 72 and the space IV 73;
when the anti-seismic device works, the lower seat plate 1 is fixedly installed on a bridge pier through bolts in the using process, then the upper seat plate 2 is fixedly installed on a beam plate of a bridge through bolts, the installation of the anti-seismic device is completed, meanwhile, in the using process, impact and vibration between the beam plate of the bridge and the bridge pier are transmitted through the rubber block I3, the impact and vibration are buffered and reduced in the transmission process, so that the vibration generated in the vehicle passing process is reduced, the anti-seismic effect of the bridge is ensured, the influence of the bridge on the vibration generated when a vehicle runs in the long-term use process is reduced, the service life of the bridge is prolonged, meanwhile, in the using process, the buffer installed between the upper seat plate 2 and the lower seat plate 1 can further generate the anti-seismic and buffer effects, and the resistance of the anti-seismic device on the vibration of the bridge generated in the vehicle running process is improved, the anti-seismic effect is improved, meanwhile, the buffer arranged between the upper seat plate 2 and the lower seat plate 1 can share the pressure borne by the rubber block I3 to a certain degree, the aging speed of the rubber block I3 under the action of external force is delayed, the service life of the rubber block I3 is prolonged, the time interval for replacing and maintaining the anti-seismic device is prolonged, and therefore the use cost of the anti-seismic device is reduced;
meanwhile, as the buffer comprises the first buffer 44 and the second buffer 45, and the first buffer 44 and the second buffer 45 are symmetrically installed around the center line of the positioning column 21, in the using process, when a plurality of vehicles run on the same side of the bridge at the same time, the stress of the bridge is unbalanced, and the bridge inclines laterally, the upper seat plate 2 tilts along with the beam plate of the bridge synchronously, so that the upper seat plate 2 tilts relative to the lower seat plate 1, and simultaneously, after the upper seat plate 2 tilts relative to the lower seat plate 1, the first buffer 44 and the second buffer 45 are synchronously subjected to the external force action, meanwhile, as the first buffer 44 and the second buffer 45 are symmetrically installed, and the installation directions of the first buffer 44 and the second buffer 45 are opposite, when the upper seat plate 2 tilts, the first piston rod 42 in the first buffer 44 moves downwards, drives the piston plate 41 to move downwards, so that the space second 63 in the first buffer 44 is enlarged, the space IV 73 is reduced, meanwhile, when the upper seat plate 2 inclines, the shock absorption cylinder 4 in the second buffer 45 moves upwards, the piston plate 41 in the second buffer moves downwards relatively, so that the space I62 in the second buffer 45 is enlarged, the space III 72 is reduced, meanwhile, as the space I62 is communicated with the space II 63 and the space III 72 is communicated with the space IV 73, when the upper seat plate 2 inclines, the sizes of the space I62, the space II 63, the space III 72 and the space IV 73 keep unchanged, the change of the buffer I44 and the buffer II 45 is prevented, so that the upper seat plate 2 resists the inclination tendency to a certain degree, the horizontal state is kept, the possibility of inclination and even overturn of the beam plate of the bridge is reduced, and the safety of the bridge is improved;
meanwhile, in the using process, the internal spaces of the first buffer 44 and the second buffer 45 are communicated with each other through the first pressure-resistant pipe 6 and the second pressure-resistant pipe 7, the pressure of a single buffer can be dispersed to a certain degree, the bearing capacity of the first buffer 44 and the second buffer 45 is enlarged, and the using range and the anti-seismic effect of the anti-seismic device are improved.
As an embodiment of the invention, an adjustable throttle valve 61 is fixedly installed on the pressure pipe I6; an adjustable throttle valve 61 is fixedly arranged on the pressure pipe II 7;
during operation, in the use, through the flow size of the adjustable throttle valve 61 on the adjustment withstand voltage pipe 6 and withstand voltage pipe two 7, change the circulation speed of the dimethyl silicon oil that fills in buffer 44 and the second 45 inner space of buffer, change the damping loss degree that exists among the flow process, thereby change the subduction effect of buffer 44 and buffer two 45 to the vibration that the vehicle travel in-process produced, thereby promote the antidetonation effect of antidetonation device, simultaneously, through the adjustment to adjustable throttle valve 61, can change buffer 44 and buffer two 45 and receive the exogenic action at the beam slab of bridge, resume the time that the horizontal state needs after producing the inclination trend, guarantee that the anti-seismic performance of bridge accords with the design requirement.
As an embodiment of the invention, a flexible seat I5 is fixedly arranged on the lower surface of the upper seat plate 2; the number of the first flexible seats 5 is the sum of the number of the first buffers 44 and the number of the second buffers 45; a second flexible seat 51 is fixedly arranged on the upper surface of the lower seat plate 1; the number of the second flexible seats 51 is multiple, and the second flexible seats correspond to the first flexible seats 5 one by one; the structure of the first flexible seat 5 is the same as that of the second flexible seat 51; a second rubber block 52 is filled in the first flexible seat 5; an installation cavity 521 is formed in the second rubber block 52; the extrusion plate 53 is fixedly arranged in the mounting cavity 521 in an interference fit manner;
one end of a piston rod I42 on the first buffer 44, which is far away from the shock absorption cylinder 4, is fixedly arranged on a squeezing plate 53 in a flexible seat I5 on the lower surface of the upper seat plate 2; one end of the fixing rod I43 on the first buffer 44, which is far away from the shock absorption cylinder 4, is fixedly arranged on a squeezing plate 53 in a flexible seat II 51 on the upper surface of the lower seat plate 1;
one end of a second piston rod on the second buffer 45, which is far away from the shock absorption cylinder 4, is fixedly arranged on a squeezing plate 53 in a second flexible seat 51 on the upper surface of the lower seat plate 1; one end, far away from the shock absorption cylinder 4, of a second fixing rod on the second buffer 45 is fixedly arranged on a squeezing plate 53 in a first flexible seat 5 on the lower surface of the upper seat plate 2;
when the device works, when a plurality of vehicles run on the same side of the bridge at the same time, so that the stress of the bridge is unbalanced, and the bridge inclines laterally, the first buffer 44 and the second buffer 45 which are positioned at symmetrical positions between the upper seat plate 2 and the lower seat plate 1 tend to incline under the action of the upper seat plate 2, and meanwhile, because the first buffer 44 and the second buffer 45 are fixedly installed through the flexible seats, the first piston rod 42 in the first buffer 44 drives the extrusion plate 53 in the first flexible seat 5 to deviate, and the extrusion is carried out on the second rubber block 52, the first fixing rod 43 in the first buffer 44 drives the extrusion plate 53 in the second flexible seat 51 to deviate, the second piston rod 45 in the second buffer drives the extrusion plate 53 in the second flexible seat 51 to deviate, and the extrusion is carried out on the second rubber block 52, and the second fixing rod in the second buffer 45 drives the extrusion plate 53 in the first flexible seat 5 to deviate, the first buffer 44 and the second buffer 45 are prevented from being bent or damaged after long-term use due to overlarge bending moment when the first buffer 44 and the second buffer 45 incline on the upper seat plate 2 by the effect of the flexible seat 5 and the flexible seat 51, the normal use and the service life of the first buffer 44 and the second buffer 45 are prevented from being influenced, meanwhile, the first buffer 44 and the second buffer 45 can have certain deflection and inclination capabilities due to the effect of the flexible seat in the use process, the first buffer 44 and the second buffer 45 can conveniently move along with the upper seat plate 2 when the first buffer 44 and the second buffer 45 incline on the upper seat plate 2, and the buffering effect of the first buffer 44 and the second buffer 45 can be well exerted, after the buffering is finished, the upper seat plate 2 is quickly promoted to be restored to the horizontal position, the possibility of overturning of the bridge is reduced, and the safety of the bridge is improved;
simultaneously, in the use, when the condition such as earthquake appears in the bridge location, effect through flexible seat, can make the buffer between seat board 2 and the lower seat board 1 have certain removal space, reduce the buffer and receive the possibility that the damage appears after the transverse force when the earthquake, and simultaneously, effect through flexible seat, when the earthquake, make the buffer receive the effect of transverse force, certain slope appears after, the performance buffering, the cushioning effect, promote the antidetonation effect of antidetonation device, reduce the damage of earthquake to the bridge, promote the security of bridge.
As an embodiment of the present invention, a teflon plate is fixedly mounted on the inner surface of the mounting cavity 521 through glue; the thickness of the polytetrafluoroethylene plate is 2-3 mm; the surface of the extrusion plate 53 is uniformly provided with protrusions 531; the protrusions 531 are hemispherical in appearance; the protrusions 531 on the surface of the extrusion plate 53 directly contact the teflon plate in the installation cavity 521;
during operation, the polytetrafluoroethylene plate is fixedly arranged on the inner wall of the mounting cavity 521, so that the friction force between the extrusion plate 53 and the second rubber block 52 can be reduced, the possibility of damage to the second rubber block 52 when the extrusion plate 53 extrudes the second rubber block 52 is reduced, the service life of the second rubber block 52 is prolonged, and meanwhile, the extrusion plate 53 and the second rubber block 52 are prevented from being bonded under the action of larger pressure to influence the normal use of the extrusion plate 53 and the second rubber block 52 under the action of the polytetrafluoroethylene plate during use; simultaneously, in the use, through the hemispherical arch 531 on the surface of the extrusion plate 53, can promote the interaction force between extrusion plate 53 and the polytetrafluoroethylene board to a certain extent, avoid extrusion plate 53 when receiving external force, directly appear slipping on the surface of the polytetrafluoroethylene board, lead to extrusion plate 53 to too big to the pressure of the two rubber blocks 52 of one side, cause two 52 damages of rubber block, influence the life of two rubber blocks 52.
As an embodiment of the invention, a lower rubber plate 12 is fixedly mounted on the outer side surface of the lower basin plate 11 through glue; the lower rubber plates 12 are a plurality and are uniformly distributed on the outer side surface of the lower basin plate 11; the gap between the lower rubber plates 12 is a first gap 122; an upper rubber plate 23 is fixedly arranged on the inner side surface of the upper basin plate 22 through glue; the upper rubber plates 23 are multiple in number and are uniformly distributed on the inner side surface of the upper basin plate 22; a second space 63 is formed between the lower rubber plates 12; the side surface of the lower rubber plate 12, which is far away from the lower basin plate 11, is coated with a polytetrafluoroethylene coating; the side surface of the upper rubber plate 23 far away from the upper basin plate 22 is coated with a polytetrafluoroethylene coating;
after the upper end of the lower pot plate 11 is inserted into the inner side of the upper pot plate 22, the lower rubber plate 12 is inserted into the first gap 122, and the upper rubber plate 23 is inserted into the second gap 232;
when the device works, when a vehicle passes through a bridge, under the influence of the dead weight of the vehicle, the beam plate of the bridge extrudes the upper seat plate 2 downwards, so that the upper basin plate 22 moves downwards, so that the upper basin plate 22 and the lower basin plate 11 move relatively, meanwhile, as the upper basin plate 22 is fixedly provided with the upper rubber plate 23 and the lower basin plate 11 is fixedly provided with the lower rubber plate 12, when the relative movement occurs between the upper basin plate 22 and the lower basin plate 11, the upper rubber plate 23 and the lower rubber plate 12 close the gap between the upper basin plate 22 and the lower basin plate 11, the direct contact between the upper basin plate 22 and the lower basin plate 11 is blocked, the loss caused by the friction between the upper basin plate 22 and the lower basin plate 11 is reduced, and meanwhile, through the sealing action of the lower rubber plate 12 and the upper rubber plate 23, impurities in the external environment, such as dust and stones, can be prevented from entering the inner side of the lower basin plate 11, so as to influence the normal use of the rubber block one 3, causing the first rubber block 3 to be damaged;
meanwhile, when an earthquake occurs in the area where the bridge is located, when the upper seat plate 2 and the lower seat plate 1 slide in the horizontal direction, the upper rubber plate 23 and the lower rubber plate 12 generate certain buffering and reducing effects on the relative movement between the upper basin plate 22 and the upper basin plate 22, the influence of the earthquake on the bridge is reduced, the earthquake-proof effect of the earthquake-proof device is improved, the phenomenon that the upper basin plate 22 and the lower basin plate 11 move in the horizontal direction in the earthquake process is avoided, and collision occurs, so that the earthquake-proof device is damaged, and the normal use of the earthquake-proof device is influenced.
As an embodiment of the present invention, a second elastic plate 231 is embedded in the upper rubber plate 23; the second elastic plate 231 is made of 50CrV spring steel; the cross section of the second elastic plate 231 is arc-shaped, and the central notch of the arc-shaped faces to the direction far away from the center of the upper basin plate 22;
a first elastic plate 121 is embedded in the lower rubber plate 12; the first elastic plate 121 is made of 50CrV spring steel; the cross section of the first elastic plate 121 is arc-shaped, and a central notch of the arc-shaped faces to the direction close to the center of the lower basin plate 11;
when the device works, the second elastic plate 231 is embedded in the upper rubber plate 23, the first elastic plate 121 is embedded in the lower rubber plate 12, and the damping effect of the upper rubber plate 23 and the lower rubber plate 12 on impact and vibration in the horizontal direction is improved under the action of the first elastic plate 121 and the second elastic plate 231, so that the anti-seismic effect of the anti-seismic device is improved, and meanwhile, the bearing range of the upper rubber plate 23 and the lower rubber plate 12 is expanded,
after the upper rubber plate 23 and the lower rubber plate 12 are subjected to too large impact and vibration in the horizontal direction, external force exceeding the bearing range of the upper rubber plate 23 and the lower rubber plate 12 is reduced, damage is caused to the upper rubber plate 23 and the lower rubber plate 12, and the influence on the service life of the upper rubber plate 23 and the service life of the lower rubber plate 12 is reduced.
The specific working process is as follows:
when the anti-seismic device works, the lower base plate 1 is fixedly installed on a bridge pier through bolts in the using process, then the upper base plate 2 is fixedly installed on a beam plate of a bridge through bolts to complete installation of the anti-seismic device, meanwhile, impact and vibration between the beam plate of the bridge and the bridge pier are transmitted through the rubber block I3 in the using process, and the impact and vibration are buffered and reduced in the transmitting process; meanwhile, as the buffer comprises the first buffer 44 and the second buffer 45, and the first buffer 44 and the second buffer 45 are symmetrically installed around the center line of the positioning column 21, in the using process, when a plurality of vehicles run on the same side of the bridge at the same time, the stress of the bridge is unbalanced, and the bridge inclines laterally, the upper seat plate 2 tilts along with the beam plate of the bridge synchronously, so that the upper seat plate 2 tilts relative to the lower seat plate 1, and simultaneously, after the upper seat plate 2 tilts relative to the lower seat plate 1, the first buffer 44 and the second buffer 45 are synchronously subjected to the external force action, meanwhile, as the first buffer 44 and the second buffer 45 are symmetrically installed, and the installation directions of the first buffer 44 and the second buffer 45 are opposite, when the upper seat plate 2 tilts, the first piston rod 42 in the first buffer 44 moves downwards, drives the piston plate 41 to move downwards, so that the space second 63 in the first buffer 44 is enlarged, the space four 73 is reduced, and simultaneously, when the upper seat plate 2 inclines, the shock absorption cylinder 4 in the second damper 45 moves upwards to enable the piston plate 41 in the second damper 45 to move downwards relatively, so that the space one 62 in the second damper 45 is enlarged, the space three 72 is reduced, and simultaneously, because the space one 62 is communicated with the space two 63 and the space three 72 is communicated with the space four 73, when the upper seat plate 2 inclines, the sizes of the space one 62, the space two 63, the space three 72 and the space four 73 keep unchanged, the changes of the first damper 44 and the second damper 45 are prevented, the upper seat plate 2 resists the inclination tendency to generate to a certain degree, and the horizontal state is kept; in the using process, the flow rate of the adjustable throttle valves 61 on the first pressure-resistant pipe 6 and the second pressure-resistant pipe 7 is adjusted, the flow speed of the dimethyl silicone oil filled in the inner spaces of the first buffer 44 and the second buffer 45 is changed, and the damping loss degree in the flowing process is changed, so that the damping effect of the first buffer 44 and the second buffer 45 on the vibration generated in the driving process of the vehicle is changed, meanwhile, the time required for the first buffer 44 and the second buffer 45 to recover to the horizontal state after the first buffer 44 and the second buffer 45 are subjected to the action of external force on the beam plate of the bridge and an inclination trend is generated can be changed through adjusting the adjustable throttle valves 61; when a plurality of vehicles run on the same side of the bridge at the same time to cause unbalanced stress of the bridge and incline the bridge to the side direction, the first buffer 44 and the second buffer 45 which are positioned at symmetrical positions between the upper seat plate 2 and the lower seat plate 1 are inclined under the action of the upper seat plate 2, and simultaneously, because the first buffer 44 and the second buffer 45 are fixedly installed through the flexible seats, the first piston rod 42 in the first buffer 44 drives the extrusion plate 53 in the first flexible seat 5 to deflect, the extrusion is carried out on the second rubber block 52, the first fixing rod 43 in the first buffer 44 drives the extrusion plate 53 in the second flexible seat 51 to deflect, the extrusion is carried out on the second rubber block 52, the second piston rod in the second buffer 45 drives the extrusion plate 53 in the second flexible seat 51 to deflect, the extrusion is carried out on the second rubber block 52, the second fixing rod in the second buffer 45 drives the extrusion plate 53 in the first flexible seat 5 to deflect, the rubber block II 52 is extruded by the extrusion plate 53, and the rubber block II 52 is deformed, so that the first buffer 44 and the second buffer 45 rotate to a certain degree, and the overlarge bending moment applied to the first buffer 44 and the second buffer 45 when the upper seat plate 2 inclines is prevented; meanwhile, in the use process, when the situation such as earthquake occurs at the place where the bridge is located, a certain moving space can exist in the buffer between the upper seat plate 2 and the lower seat plate 1 under the action of the flexible seat; a polytetrafluoroethylene plate is fixedly mounted on the inner wall of the mounting cavity 521, so that the friction force between the extrusion plate 53 and the second rubber block 52 is reduced; meanwhile, in the use process, the interaction force between the extrusion plate 53 and the polytetrafluoroethylene plate is improved to a certain extent through the hemispherical protrusions 531 on the surface of the extrusion plate 53, so that the extrusion plate 53 is prevented from directly sliding on the surface of the polytetrafluoroethylene plate when being subjected to external force; in the use process, when a vehicle passes through the bridge, under the influence of the self weight of the vehicle, the beam plate of the bridge downwards extrudes the upper seat plate 2, so that the upper basin plate 22 downwards moves, and the upper basin plate 22 and the lower basin plate 11 relatively move, meanwhile, as the upper basin plate 22 is fixedly provided with the upper rubber plate 23 and the lower basin plate 11 is fixedly provided with the lower rubber plate 12, when the relative movement occurs between the upper basin plate 22 and the lower basin plate 11, the upper rubber plate 23 and the lower rubber plate 12 close the gap between the upper basin plate 22 and the lower basin plate 11, and block the direct contact between the upper basin plate 22 and the lower basin plate 11; meanwhile, when an earthquake occurs in the area where the bridge is located and the upper seat plate 2 and the lower seat plate 1 slide in the horizontal direction, the upper rubber plate 23 and the lower rubber plate 12 generate certain buffering and reducing effects on the relative movement between the upper basin plate 22 and the upper basin plate 22; by embedding the second elastic plate 231 in the upper rubber plate 23 and the first elastic plate 121 in the lower rubber plate 12, the effect of the upper rubber plate 23 and the lower rubber plate 12 on reducing horizontal impact and vibration is improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a highway is antidetonation device for bridge which characterized in that: comprises a lower seat plate (1) and an upper seat plate (2); the lower base plate (1) is fixedly arranged on a pier through bolts; the upper seat plate (2) is fixedly arranged on a beam plate of the bridge through bolts; a lower basin plate (11) is fixedly arranged on the upper surface of the lower seat plate (1); an upper basin plate (22) is fixedly arranged on the lower surface of the upper seat plate (2); the inner diameter of the upper pot plate (22) is larger than the outer diameter of the lower pot plate (11), and the upper end of the lower pot plate (11) is inserted into the inner side of the upper pot plate (22); a positioning column (21) is fixedly arranged on the lower surface of the upper seat plate (2); the positioning column (21) is positioned in the middle of the upper basin plate (22), and the height of the positioning column (21) is equal to that of the upper basin plate (22); a first rubber block (3) is fixedly arranged in the lower basin plate (11), and the diameter of the first rubber block (3) is smaller than or equal to the inner diameter of the lower basin plate (11); a through hole (31) is formed in the middle of the rubber block I (3), and the positioning column (21) is inserted into the through hole (31); the upper surface of the rubber block I (3) is in mutual contact with the lower surface of the upper basin plate (22); the lower surface of the rubber block I (3) is in mutual contact with the upper surface of the lower basin plate (11);
a buffer is fixedly arranged between the upper seat plate (2) and the lower seat plate (1); the buffer is divided into a first buffer (44) and a second buffer (45), and the installation directions of the first buffer (44) and the second buffer (45) are opposite; the structure of the first buffer (44) is the same as that of the second buffer (45); the first buffer (44) and the second buffer (45) are symmetrically arranged around the center line of the positioning column (21); the damper comprises a shock absorption cylinder (4) and a piston plate (41); the piston plate (41) is slidably arranged in the shock absorption cylinder (4), and the piston plate and the shock absorption cylinder are relatively sealed;
a piston plate (41) in a shock absorption cylinder (4) in the first buffer (44) is fixedly provided with a first piston rod (42); one end of the first piston rod (42) far away from the piston plate (41) extends out of the shock absorption cylinder (4); one end of the first piston rod (42) positioned outside the shock absorption cylinder (4) is fixedly arranged on the lower surface of the upper seat plate (2); a first fixing rod (43) is fixedly mounted on the end face, far away from the first piston rod (42), of the shock absorption cylinder (4) in the first buffer (44); one end of the first fixing rod (43) far away from the shock absorption cylinder (4) is fixedly arranged on the upper surface of the lower seat plate (1); the space above the piston plate (41) in the shock absorption cylinder (4) in the first buffer (44) is a second space (63); the space below the piston plate (41) in the shock absorption cylinder (4) in the first buffer (44) is a space IV (73);
a piston plate (41) in a shock absorption cylinder (4) in the second buffer (45) is fixedly provided with a second piston rod; one end of the second piston rod, which is far away from the piston plate (41), extends out of the shock absorption cylinder (4); one end of the piston rod II, which is positioned outside the shock absorption cylinder (4), is arranged on the upper surface of the lower seat plate (1); a second fixing rod is fixedly arranged on the end face, far away from the second piston rod, of the damping cylinder (4) in the second buffer (45); one end of the second fixing rod, which is far away from the shock absorption cylinder (4), is fixedly arranged on the lower surface of the upper seat plate (2); the space above the piston plate (41) in the shock absorption cylinder (4) in the second buffer (45) is a first space (62); the space below the piston plate (41) in the shock absorption cylinder (4) in the second buffer (45) is a third space (72);
the first space (62) and the second space (63) are communicated with each other through a pressure-resistant pipe I (6), and dimethyl silicone oil is filled in the first space (62) and the second space (63); the space III (72) and the space IV (73) are communicated with each other through a pressure-resistant pipe II (7), and dimethyl silicone oil is filled in the space III (72) and the space IV (73).
2. An anti-seismic device for road bridges according to claim 1, wherein: an adjustable throttle valve (61) is fixedly arranged on the pressure pipe I (6); and an adjustable throttle valve (61) is fixedly mounted on the pressure pipe II (7).
3. An anti-seismic device for road bridges according to claim 1, wherein: a first flexible seat (5) is fixedly arranged on the lower surface of the upper seat plate (2); the number of the flexible bases I (5) is the sum of the number of the buffers I (44) and the number of the buffers II (45); a second flexible seat (51) is fixedly arranged on the upper surface of the lower seat plate (1); the number of the second flexible seats (51) is multiple, and the second flexible seats correspond to the first flexible seats (5) one by one; the structure of the first flexible seat (5) is the same as that of the second flexible seat (51); a second rubber block (52) is filled in the first flexible seat (5); an installation cavity (521) is formed in the second rubber block (52); the extrusion plate (53) is fixedly arranged in the mounting cavity (521) in an interference fit manner;
one end, far away from the shock absorption cylinder (4), of a piston rod I (42) on the buffer I (44) is fixedly arranged on a squeezing plate (53) in a flexible seat I (5) on the lower surface of the upper seat plate (2); one end, far away from the shock absorption cylinder (4), of a first fixing rod (43) on the first buffer (44) is fixedly installed on a squeezing plate (53) in a second flexible seat (51) on the upper surface of the lower seat plate (1);
one end, far away from the shock absorption cylinder (4), of a second piston rod on the second buffer (45) is fixedly installed on a squeezing plate (53) in a second flexible seat (51) on the upper surface of the lower seat plate (1); and one end of a second fixing rod on the second buffer (45), which is far away from the damping cylinder (4), is fixedly installed on the extrusion plate (53) in the first flexible seat (5) on the lower surface of the upper seat plate (2).
4. An anti-seismic device for road bridges according to claim 3, wherein: a polytetrafluoroethylene plate is fixedly arranged on the inner surface of the mounting cavity (521) through glue; the thickness of the polytetrafluoroethylene plate is 2-3 mm; the surface of the extrusion plate (53) is uniformly provided with protrusions (531); the protrusions (531) are hemispherical in appearance; the protrusions (531) on the surface of the extrusion plate (53) are directly contacted with the polytetrafluoroethylene plate in the installation cavity (521).
5. An anti-seismic device for road bridges according to claim 1, wherein: a lower rubber plate (12) is fixedly arranged on the outer side surface of the lower basin plate (11) through glue; the lower rubber plates (12) are a plurality and are uniformly distributed on the outer side surface of the lower basin plate (11); the gap between the lower rubber plates (12) is a first gap (122); an upper rubber plate (23) is fixedly arranged on the inner side surface of the upper basin plate (22) through glue; the upper rubber plates (23) are a plurality and are uniformly distributed on the inner side surface of the upper basin plate (22); a second space (63) is formed between the lower rubber plates (12); the side surface of the lower rubber plate (12) far away from the lower basin plate (11) is coated with a polytetrafluoroethylene coating; the side surface of the upper rubber plate (23) far away from the upper basin plate (22) is coated with a polytetrafluoroethylene coating;
after the upper end of the lower pot plate (11) is inserted into the inner side of the upper pot plate (22), the lower rubber plate (12) is inserted into the first gap (122), and the upper rubber plate (23) is inserted into the second gap (232).
6. An anti-seismic device for road bridges according to claim 5, wherein: a second elastic plate (231) is embedded in the upper rubber plate (23); the second elastic plate (231) is made of 50CrV spring steel; the cross section of the second elastic plate (231) is arc-shaped, and the arc-shaped central notch faces to the direction far away from the center of the upper basin plate (22);
a first elastic plate (121) is embedded in the lower rubber plate (12); the first elastic plate (121) is made of 50CrV spring steel; the cross section of the first elastic plate (121) is arc-shaped, and the arc-shaped central notch faces to the direction close to the center of the lower basin plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881454.4A CN113494048B (en) | 2021-08-02 | 2021-08-02 | Anti-seismic device for highway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881454.4A CN113494048B (en) | 2021-08-02 | 2021-08-02 | Anti-seismic device for highway bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113494048A true CN113494048A (en) | 2021-10-12 |
| CN113494048B CN113494048B (en) | 2022-11-15 |
Family
ID=77996846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110881454.4A Active CN113494048B (en) | 2021-08-02 | 2021-08-02 | Anti-seismic device for highway bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113494048B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263102A (en) * | 2022-01-07 | 2022-04-01 | 韩建杰 | Road and bridge support and construction method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201053102Y (en) * | 2007-06-25 | 2008-04-30 | 衡水丰泽工程橡胶科技开发有限公司 | Basin-type vibration reducing obstructing support base |
| CN101962934A (en) * | 2010-09-28 | 2011-02-02 | 成都市新筑路桥机械股份有限公司 | One-way movable damper for bridge |
| JP2011179293A (en) * | 2010-03-04 | 2011-09-15 | West Nippon Expressway Co Ltd | Base-isolated bridge |
| US20160298300A1 (en) * | 2013-07-10 | 2016-10-13 | Qingdao Create Environment Control Technology Co., Ltd. | Rail vibration absorber |
| CN206396623U (en) * | 2017-01-12 | 2017-08-11 | 中交城乡建设规划设计研究院有限公司 | Bridge construction bearing |
| CN208668260U (en) * | 2018-07-08 | 2019-03-29 | 长沙三远钢结构有限公司 | A kind of steel structure bridge shock mount |
| CN209227783U (en) * | 2018-11-22 | 2019-08-09 | 湖南四维抗震科技有限公司 | A kind of building construction aseismatic bearing |
| CN209227368U (en) * | 2018-11-07 | 2019-08-09 | 上海思纳建筑规划设计股份有限公司 | Energy consumption damping limit support |
| CN209584825U (en) * | 2018-11-16 | 2019-11-05 | 安徽省淮阜路桥工程建设有限公司 | A kind of highway bridge elastic buffer pot rubber bearing |
| CN211446584U (en) * | 2019-12-18 | 2020-09-08 | 常熟市宝德桥梁构件有限公司 | High-performance insulating damping bridge support |
| CN111663437A (en) * | 2020-07-07 | 2020-09-15 | 山东交通学院 | Anti-overturning spherical support |
| CN211547307U (en) * | 2019-12-30 | 2020-09-22 | 成都济通路桥科技有限公司 | Novel become roof beam slab formula rubber support that falls is prevented in rigidity shock attenuation |
| CN212270660U (en) * | 2020-08-25 | 2021-01-01 | 中交第四航务工程勘察设计院有限公司 | Novel self-adjusting support structure system suitable for movable bridge |
| CN213508932U (en) * | 2020-09-18 | 2021-06-22 | 中盛路桥科技有限公司 | Building shock insulation rubber support |
-
2021
- 2021-08-02 CN CN202110881454.4A patent/CN113494048B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201053102Y (en) * | 2007-06-25 | 2008-04-30 | 衡水丰泽工程橡胶科技开发有限公司 | Basin-type vibration reducing obstructing support base |
| JP2011179293A (en) * | 2010-03-04 | 2011-09-15 | West Nippon Expressway Co Ltd | Base-isolated bridge |
| CN101962934A (en) * | 2010-09-28 | 2011-02-02 | 成都市新筑路桥机械股份有限公司 | One-way movable damper for bridge |
| US20160298300A1 (en) * | 2013-07-10 | 2016-10-13 | Qingdao Create Environment Control Technology Co., Ltd. | Rail vibration absorber |
| CN206396623U (en) * | 2017-01-12 | 2017-08-11 | 中交城乡建设规划设计研究院有限公司 | Bridge construction bearing |
| CN208668260U (en) * | 2018-07-08 | 2019-03-29 | 长沙三远钢结构有限公司 | A kind of steel structure bridge shock mount |
| CN209227368U (en) * | 2018-11-07 | 2019-08-09 | 上海思纳建筑规划设计股份有限公司 | Energy consumption damping limit support |
| CN209584825U (en) * | 2018-11-16 | 2019-11-05 | 安徽省淮阜路桥工程建设有限公司 | A kind of highway bridge elastic buffer pot rubber bearing |
| CN209227783U (en) * | 2018-11-22 | 2019-08-09 | 湖南四维抗震科技有限公司 | A kind of building construction aseismatic bearing |
| CN211446584U (en) * | 2019-12-18 | 2020-09-08 | 常熟市宝德桥梁构件有限公司 | High-performance insulating damping bridge support |
| CN211547307U (en) * | 2019-12-30 | 2020-09-22 | 成都济通路桥科技有限公司 | Novel become roof beam slab formula rubber support that falls is prevented in rigidity shock attenuation |
| CN111663437A (en) * | 2020-07-07 | 2020-09-15 | 山东交通学院 | Anti-overturning spherical support |
| CN212270660U (en) * | 2020-08-25 | 2021-01-01 | 中交第四航务工程勘察设计院有限公司 | Novel self-adjusting support structure system suitable for movable bridge |
| CN213508932U (en) * | 2020-09-18 | 2021-06-22 | 中盛路桥科技有限公司 | Building shock insulation rubber support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263102A (en) * | 2022-01-07 | 2022-04-01 | 韩建杰 | Road and bridge support and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113494048B (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1474007A (en) | Building insulating vibration -isolating system | |
| CN105780640A (en) | Resettable shape memory alloy (SMA) multidimensional vibration isolating support | |
| CN212925750U (en) | Anti-seismic cylindrical support for highway bridge | |
| CN110295557B (en) | Self-adaptive deformation reset anti-collision method capable of resisting uneven impact force | |
| CN113494048B (en) | Anti-seismic device for highway bridge | |
| CN113322794B (en) | Anti-roll section assembling swing single-column pier multiple damping system | |
| CN205530321U (en) | A damping device for connecting pile foundation and cushion cap | |
| CN209555762U (en) | A kind of Double-joint expansion joint device for bridge | |
| CN109267809A (en) | The knockdown nonlinear spring vertical vibration isolation device of precompressed | |
| CN108978446A (en) | A kind of Self-resetting energy-dissipation structure suitable for bridge | |
| CN209760008U (en) | support assembly for road and bridge damping | |
| JPH0941321A (en) | Base isolation method of bridge using existing bearing | |
| CN215668985U (en) | Oil pressure type automatic height-adjusting support and bridge | |
| CN207973997U (en) | Inverted T shaped bloom bridge extension joint | |
| CN112501956A (en) | Ballastless track | |
| CN103485277B (en) | Horizontal seismic-reduction device of long-span bridge | |
| CN203346787U (en) | Flat steel spring plate expansion joint | |
| CN220413986U (en) | Anti-seismic device for highway bridge | |
| CN215947866U (en) | Public road bridge roof beam support of moving away to avoid possible earthquakes based on bridge security performance | |
| CN106835891B (en) | Anti-shear deformation cement concrete pavement joint device | |
| CN214656015U (en) | Ballastless track | |
| KR100313683B1 (en) | Bridge shoe for shifting a shock | |
| CN113550188A (en) | Shock-proof type anti-cracking highway | |
| CN2380604Y (en) | Undirectional moving plate type rubber supporting seat | |
| CN219060103U (en) | Pile head connection structure for improving pile group anti-seismic performance of high bearing platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |