CN110761183A

CN110761183A - Rubber vibration-damping rollover-prevention support

Info

Publication number: CN110761183A
Application number: CN201911094092.3A
Authority: CN
Inventors: 徐梓云; 唐缝梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-02-07

Abstract

A rubber vibration-damping rollover-prevention support belongs to the technical field of viaducts; the device comprises a guide sliding seat body consisting of a transverse limiting part, a locking limiting part and a bearing part, a longitudinal sliding group consisting of a longitudinal sliding lower plate, a rubber block and a longitudinal sliding upper block or a longitudinal sliding group consisting of a longitudinal sliding upper plate and a rubber block, and a guide sliding groove on the guide sliding seat body; the sliding guide group is locked and limited not to move up and down through the locking limiting part in the guide sliding seat body, the sliding guide group is limited not to slide to two sides through the transverse limiting part in the guide sliding seat body, so that the two sides of the viaduct body of the single-pier supporting beam body are locked not to swing up and down, the viaduct body of the single-pier supporting beam body is locked not to turn over to any side, the functions of preventing the side turning of the viaduct of the single-pier supporting beam body and adapting to the thermal expansion and cold contraction of the viaduct are integrated, and the use safety and the use stability of the viaduct are improved.

Description

Rubber vibration-damping rollover-prevention support

Technical Field

The invention relates to a rubber vibration-damping anti-rollover support in the technical field of viaducts of railways and highways.

Background

The construction of highways and urban overpasses consumes huge cost, and particularly the construction cost of the bridge piers of the viaduct is high. In order to save the construction cost under the conditions of being limited by the construction geographical position and saving land use, according to the requirements of construction units, a plurality of design units design more piers into a support type of a single pier and single support; the combined support combined with the support of the full-floating movable supports on a plurality of piers is supported by the fixed supports on one pier, so that the matching position of the joint can be automatically adjusted when the cover beam (the transverse beam for transversely supporting the beam body) and the beam body (the longitudinal beam body) expand with heat and contract with cold. The total load of the trucks continuously running on the viaduct exceeds the designed load, the exceeding of the designed load is often the main reason of torsion and overturning of the viaduct, and the torsion and overturning cause a plurality of rollover accidents of the viaduct.

When the girder body of the viaduct with the plurality of piers and the plurality of supporting beam bodies bears the continuous load-carrying vehicle passing through the single side, the stability of the supporting beam body is the best, but the construction cost is the highest. The construction cost of the viaduct with the single-pier single-support supporting beam body is the lowest, but when the viaduct with the single-pier single-support supporting beam body bears a continuous single-side passing truck, the stability of the supporting beam body is the worst, and the side turning of the viaduct is easily caused. In order to reduce the construction cost, the construction unit often requires the design unit to design most of the multiple piers as single piers.

The pier supported by the single pier is provided with two types, namely a side column pier and a middle pier, the side column pier is provided with a capping beam, and the middle pier is mostly not provided with the capping beam; fixed supports are adopted between the capping beams and the beam bodies of the viaducts of the side column piers for supporting, and full-floating supports are adopted between the beam bodies of the viaducts of the middle piers without capping beams and the upper ends of the piers and between the capping beams of the viaducts of the middle piers without capping beams and the upper ends of the piers for supporting.

The fixed support is characterized in that the support, the cover beam and the support cushion stone are fixed together through anchor bolts preset in the cover beam and the support cushion stone, and the support and the beam body are fixed together through a beam bottom embedded steel plate preset in the beam body through the anchor bolts, so that the support bears the weight of the beam body above and passing vehicles; the full-floating support is characterized in that a support is placed on a support base stone for fixing a support base lower steel plate on a cover beam through an anchor bolt or placed on a support base stone for fixing the support base lower steel plate on the upper end of a pier through the anchor bolt, a beam bottom embedded steel plate preset in a beam body is used for fixing a support base upper steel plate and the beam body together through the anchor bolt, and the support base upper steel plate is pressed on the full-floating support to bear the weight of the beam body and passing vehicles.

At present, a plate type rubber support and a basin type rubber support are mainly used for a viaduct of a highway;

the pot type rubber support is divided into a fixed support and a movable support, and the movable support is divided into a multi-directional movable support and a longitudinal movable support; the movable basin type rubber support comprises an upper support plate, a polytetrafluoroethylene plate, a pressure-bearing rubber block, a rubber sealing ring, a middle support plate, a steel clamping ring, a lower support plate and an upper support connecting plate and a lower support connecting plate; the fixed support can be formed by combining the upper support plate structure and the middle support plate structure or by utilizing the upper support connecting plate and the lower support connecting plate. While

The fixed support and the full-floating movable support are adopted without carrying outLimiting and fixingThe integral seat body connected up and down or the upper and lower combined integral seat body without limit fixing is adopted, and a locking device which is locked and does not deviate towards the two sides of the beam body and a locking device which is locked between the upper support plate and the lower support plate are not arranged. And then the side turning of the beam body of the viaduct is easy to happen when the left and right beam bodies of the viaduct bear uneven load.

The plate-type rubber support is rectangular and circular and is not divided into a fixed support and a movable support; a thin steel plate or a steel wire mesh is used as a stiffening layer to improve the vertical bearing capacity of the support; rotation is achieved by uneven elastic compression and horizontal displacement is achieved by shear deformation. The lower steel plate of the support is fixed on the bent cap and the support cushion by adopting the anchor bolt or the support is placed on the support cushion which is fixed on the upper end of the pier by the anchor bolt, and the upper steel plate of the support is fixed with the beam body by the beam bottom embedded steel plate which is preset in the beam body by the anchor bolt, so that the upper steel plate of the support is pressed on the full-floating support to bear the weight of the beam body and the passing vehicle. While

The plate type rubber support is placed on an upper steel plate of the support and a lower steel plate of the support, and is not provided with a locking device for locking the steel plate and the lower steel plate of the support, and the locking device for locking the steel plate and the lower steel plate of the support is not arranged on two sides of a beam body. And then the side turning of the viaduct is easy to happen when the left and right beam bodies of the viaduct bear uneven load.

In addition, when the traditional support is selected, the safety reserve of the support does not need to be worryed too much, for example, the maximum reaction force of the support is 4100, the minimum reaction force is 3700, and then the support with the bearing capacity of 4000 is selected, because the allowable range of the support reaction force of the 4000 support is 3200-4200, and the support with the bearing capacity of 5000 cannot be selected from the viewpoint of safer consideration. The 5000 seat is not preferred because the lowest suitable load bearing is 4000, and the minimum reaction 3700 is already below this value.

In addition, the frequent safety accidents of side turning of the beam body of the viaduct cause huge economic loss and property damage; the remedial measures taken are: the number of the transverse piers of the viaduct is increased, and the construction cost for remedying the increased piers is extremely high.

Therefore, as seen from the above background art, the conventional support used for the viaduct has only the function and capability of supporting the load of the beam body, and has no function and capability of preventing the side turn at all.

At present, in the prior art, there is also a bridge anti-overturning support and a construction method thereof with patent number CN2015105183408, but the whole support is fixedly connected with a beam body and a cover beam through a screw, so that although the side turning of the beam body of the viaduct can be prevented, the beam body cannot slide back and forth on the support and cannot adapt to the extension and contraction caused by thermal expansion and cold contraction of the beam body, so that the beam body easily inclines or inclines a pier, and the support cannot be practically applied to the construction of the viaduct. There is also a bridge anti-overturning support with the patent number CN2016104866163, which prevents the overturning of the beam body during earthquake, and the three plates are in contact fit through the inserting plates which are arranged in a cross way, and the inserting plates and the three plates are in cylindrical roller fit, so as to improve the sensitivity of the earthquake-proof efficiency; the adjacent jack boards are matched through the brake pads arranged at intervals, and when an earthquake occurs, the amplitude of the horizontal force of the earthquake is decomposed into high-frequency low-amplitude vibration, so that the earthquake resistance is improved; but the three plates are not limited to be incapable of moving up and down and transversely moving the beam body, and the function of preventing the side turning of the beam body of the viaduct is not realized. A curved beam bridge anti-overturning support with the patent number of CN2017102968862 is also arranged, but a connecting rod is hinged and fixed in the middle of one side of the upper end face of the rotating sleeve, two connecting rods 8 are hinged in the middle of the two support main bodies, and the connecting rods 8 which are hinged and fixed on the rotating sleeves of the two support main bodies are respectively arranged in front of and behind the two rotating sleeves; the support main body bears the downward pressure of the beam body under the action of unbalance loading, so that the side rotary bearing drives the rotary sleeve to move downwards together, the downward-pressed rotary sleeve enables the tiger teeth to move upwards in the sliding track of the inner wall of the sleeve, the side rotary sleeve 3 rotates around the rotary bearing under the action of the counter force of the tiger teeth 5 acting on the sliding track 9, the upper connecting rod 8 of the rotary sleeve 3 is driven to rotate, the force is transmitted to the rotary sleeve of the support on the other side through the two hinged connecting rods, the rotary sleeve on the other side rotates spirally upwards around the side rotary bearing 4, and the rotary force enables the rotary pump to generate downward pulling force on the side beam body and resist the torque generated by unbalance loading; the device is not limited by itself, the fixed support cannot move up and down, and the function of preventing the side turning of the beam body of the viaduct is not realized. The anti-overturning device is also provided with a single-column pier bridge anti-overturning device based on the self-balancing structure with the patent number of CN2017202109525, but the anti-overturning device transfers, converts and changes the direction of force through a force transfer rod piece, a pulley and a powerful steel wire rope, and transfers the offset load force originally acting on one side to the other side, so that the two sides of the bridge are stressed in a balanced manner; the bridge cannot be locked and cannot move transversely and vertically, and the function of preventing the side turning of the bridge of the viaduct is not realized.

In order to eliminate technical defects in the prior art and potential safety hazards caused by a viaduct supported by a single independent pier support, a rubber vibration-damping rollover-preventing support capable of preventing the viaduct supported by the single independent pier from rollover to the greatest extent is designed through years of research and practice.

Disclosure of Invention

The invention aims to provide a rubber vibration-damping rollover-prevention support which improves the rollover-prevention safety coefficient to dozens of times to hundreds of times of the bearing capacity of the traditional support on the basis of not considering the change range of the maximum counter force and the minimum counter force of the traditional support, and is capable of preventing the side rollover of a beam body of a viaduct supporting the beam body by a single support and automatically adapting the beam body of the viaduct supporting the beam body by the single support to the front and back slippage caused by thermal expansion and cold contraction of the viaduct when the temperature changes.

In order to achieve the purpose, the rubber vibration-damping rollover-preventing support comprises a guide sliding seat body, a longitudinal sliding group and a guide sliding chute, wherein the guide sliding seat body consists of a transverse limiting part, a locking limiting part and a bearing part;

the long side surface is provided with a long opening so that the cross section of the rectangular tubular guide sliding seat body is in a convex shape, a longitudinal sliding group consisting of a longitudinal sliding lower plate, a rubber block and a longitudinal sliding upper block is arranged in the guide sliding groove or a longitudinal sliding group consisting of a longitudinal sliding upper plate and a rubber block is arranged in the guide sliding groove, one surface of the upper surface of the longitudinal sliding upper block arranged in the guide sliding groove is higher than the upper end of the guide sliding seat body, and the sliding guide block of the longitudinal sliding upper block is wider than the upper boss; the rubber blocks are arranged in an upper groove on the lower surface of the longitudinal sliding upper block and a lower groove on the upper surface of the longitudinal sliding lower block, or the rubber blocks are arranged between the lower surface of the longitudinal sliding upper block and the lower groove on the upper surface of the longitudinal sliding lower block, or the rubber blocks are arranged between the upper groove on the lower surface of the longitudinal sliding upper block and the upper surface of the longitudinal sliding lower block, or the rubber blocks are arranged in the upper groove on the lower surface of the longitudinal sliding upper block and the upper surface of the bottom of the guide sliding groove of the guide sliding seat body, or the rubber blocks are arranged in the lower surface of the longitudinal sliding upper block and the upper surface of the bottom of the guide sliding groove of the guide sliding seat body;

the upper longitudinal sliding block is arranged above the lower longitudinal sliding block, the sliding guide block of the upper longitudinal sliding block is limited and locked below the locking limiting part of the guide chute and cannot move upwards, the lower longitudinal sliding block is limited and locked above the bearing part of the guide chute and cannot move downwards, the upper longitudinal sliding block and the lower longitudinal sliding block are limited and cannot move transversely between two transverse limiting parts of the guide chute, and the integral linkage between the upper longitudinal sliding block and the lower longitudinal sliding block and the integral linkage type longitudinal sliding of the upper longitudinal sliding block and the lower longitudinal sliding block in the guide chute are positioned by inserting two ends of an upright post guide sliding pin into a sliding hole of the upper longitudinal sliding block and a sliding hole of the lower longitudinal sliding block respectively; or the sliding guide block of the longitudinal sliding upper block is arranged on one surface of the lower surface of the locking limiting part of the guide chute, the rubber block is arranged on one surface of the upper surface of the bearing part of the guide chute, so that the longitudinal sliding upper block is limited and locked and cannot move up and down, the longitudinal sliding upper block and the rubber block are arranged between the two transverse limiting parts of the guide chute, so that the longitudinal sliding upper block is limited and cannot move transversely, the contact surface is positioned through friction generated by the contact between the rubber block and the lower surface of the longitudinal sliding upper block and the bottom of the guide chute, and the longitudinal sliding upper block can only slide longitudinally in the guide chute through the deformation toughness and elastic deformation of the rubber block;

in practical use, the components of the longitudinal sliding group which are matched with the guide sliding grooves of the guide sliding seat body have five matching types: firstly, rubber blocks are arranged in an upper groove on one surface below the upper longitudinal sliding block and a lower groove on one surface above the lower longitudinal sliding block,longitudinal direction A slide guide block for sliding the upper block toward the lower side of the lock restricting portion of the guide groove and an upper side of the longitudinally sliding lower block Between the surfaces, the lower surface of the longitudinal sliding block is arranged below the sliding guide block of the longitudinal sliding block and above the bearing part of the guide chute Between one side, the upper longitudinal sliding block and the lower longitudinal sliding block are simultaneously arranged between the two transverse limiting parts of the guide chute through the vertical Two ends of the column guide sliding pin are respectively inserted into the sliding holes of the upper longitudinal sliding block and the lower longitudinal sliding block to be fixed The upper block and the lower block are in integral linkage and driven to slide longitudinally Integral linked longitudinal sliding in guide chute(ii) a Secondly, a rubber block is arranged between the lower surface of the upper longitudinal sliding block and the lower groove of the upper surface of the lower longitudinal sliding block,a slide guide block for longitudinally sliding the upper block is locked at the lock restricting portion of the guide groove Between the lower surface of the upper block and the upper surface of the lower block, and the lower block slides longitudinally on the upper block Between the lower surface of the upper slide block and the upper surface of the slide guide groove bearing part, and the upper block and the lower block which slide longitudinally are simultaneously in slide guide Between two transverse limiting parts of the groove, two ends of a guide sliding pin through an upright post are respectively inserted into a sliding hole of the longitudinal sliding upper block Inserted into the sliding hole of the lower longitudinal sliding block to position the integral link between the upper longitudinal sliding block and the lower longitudinal sliding block, and the belt Integral linkage type longitudinal sliding of upper longitudinal sliding block and lower longitudinal sliding block in guide sliding groove(ii) a Thirdly, a rubber block is arranged between the upper groove on the lower surface of the longitudinal sliding upper block and the upper surface of the longitudinal sliding lower block,sliding the upper block longitudinally The sliding guide block is longitudinally slid between a lower surface of the lock restricting portion of the guide groove and an upper surface of the longitudinally sliding lower block The movable lower block is arranged between the lower surface of the sliding guide block of the longitudinal sliding upper block and the upper surface of the guide chute bearing part, and the longitudinal sliding lower block is arranged between the lower surface of the sliding guide block of the longitudinal sliding upper block and the upper surface of the guide chute bearing part The upper sliding block and the lower longitudinal sliding block are simultaneously arranged between two transverse limiting parts of the guide sliding groove and guide the two ends of the sliding pin through the upright post Respectively inserted into the sliding holes of the upper longitudinal sliding block and the lower longitudinal sliding block to position the upper longitudinal sliding block Integral linkage with the lower longitudinal sliding block and the whole of the upper longitudinal sliding block and the lower longitudinal sliding block in the guide chute Body-linked longitudinal sliding(ii) a Fourthly, rubber blocks are arranged in the upper groove on one surface under the upper longitudinal sliding block and the upper surface on the bottom of the guide sliding groove of the guide sliding seat body,a slide guide block for longitudinally sliding the upper block is provided below the lock restricting portion of the guide groove An upper groove between one surface and the upper surface of the rubber block and on the lower surface of the sliding guide block for longitudinally sliding the rubber block The upper block and the rubber block longitudinally slide between the upper surface and the upper surface of the bearing part of the guide chute and are simultaneously limited in two transverse directions of the guide chute Between the parts, friction is generated by the contact between the rubber block and the upper groove on the lower surface of the upper block which slides longitudinally and the bottom of the guide chute The rubber block is rubbed to position the contact surface, and the upper block longitudinally slides in the guide chute through the deformation toughness and elastic deformation of the rubber block Can only slide longitudinally(ii) a Fifthly, rubber blocks are arranged on one surface under the upper longitudinal sliding block and one surface above the bottom of the guide sliding groove of the guide sliding seat body,sliding guide block for longitudinally sliding upper blockA rubber is arranged below the locking and limiting part of the guide chute Between the upper surface of the block and the lower surface of the sliding guide block for the rubber block to slide longitudinally and the bearing part of the guide chute Between the upper surface and the lower surface, the upper block and the rubber block slide longitudinally and are simultaneously between two transverse limiting parts of the guide chute through rubber The block is contacted with the lower surface of the upper block which slides longitudinally and the bottom of the guide chute to generate friction to position the contact surface, and then the contact surface is positioned through the friction The deformation toughness and the elastic deformation of the rubber block enable the upper block which slides longitudinally only to slide longitudinally in the guide chute；

The longitudinal sliding upper block penetrates through the support upper steel plate through the anchor bolt and then fixes the beam body and the longitudinal sliding upper block together with a beam bottom embedded steel plate in the beam body; after passing through a lower steel plate of the support through an anchoring bolt, the sliding guide seat body and the upper end of the capping beam or the pier and a support cushion stone on the capping beam or the pier are fixed together with the sliding guide seat body through a threaded sleeve pre-embedded in the support cushion stone on the upper end of the capping beam or the pier, or the sliding guide seat body and the upper end of the capping beam or the pier and a support cushion stone on the capping beam or the pier are fixed together with the sliding guide seat body through a threaded sleeve pre-embedded in the anchoring bolt and the support cushion stone on the upper end of the capping beam or the pier;

the two sides of the sliding guide block of the upper longitudinal sliding block and the two sides of the lower longitudinal sliding block are locked and limited by the locking and limiting parts at the two sides of the long opening of the guide sliding groove in the shape of a Chinese character 'tu' in the guide sliding seat body, and/or the two sides of the sliding guide block of the upper longitudinal sliding block are locked and limited not to move up and down, and then the upper longitudinal sliding block and the lower longitudinal sliding block are limited not to slide towards the two sides by the transverse limiting parts of the guide sliding groove in the shape of a Chinese character 'tu' in the guide sliding seat body, and/or the upper longitudinal sliding block is limited not to slide towards the two sides, so that the two sides of the beam body of the viaduct of the single-pier support beam body are locked not to swing up and down, and then the beam body of.

The guide sliding seat body is a rectangular tube type seat body with a long opening on the long side surface, and the long opening on the long side surface of the rectangular tube type combines the interior of the guide sliding seat body and the opening into a convex guide sliding groove; the horizontal folding parts at two sides of the long opening of the guide chute are locking limiting parts, the vertical part below the horizontal folding part at the long opening of the guide chute is a horizontal limiting part, and the horizontal part below the horizontal folding part of the guide chute is a bearing part; the sliding guide blocks on two sides of the longitudinal sliding upper block are locked and limited by the locking and limiting part of the sliding guide seat body not to move up and down; the upper longitudinal sliding block is limited not to slide to two sides by the transverse limiting part of the sliding guide seat body; all the gravity borne by the longitudinal sliding upper block and the longitudinal sliding upper block is borne by a bearing part of the sliding guide seat body; a bearing part of the guide sliding seat body is provided with a screw hole through which an anchoring bolt passes, one surface of the upper surface of the bearing part of the screw hole is provided with a counter bore for accommodating an anchoring bolt head or a nut, and the installed anchoring bolt head or nut does not expose out of the guide sliding groove in the counter bore;

the longitudinal sliding upper block is a convex block body with longitudinal notches at the upper part or the middle part and two sides of the upper part, an upper groove which is concave upwards is arranged on one surface of the lower surface of the block body or not, and a sliding guide block outside the upper groove is provided with or not provided with a sliding hole for inserting the upright post sliding guide pin; the longitudinal sliding upper block comprises an upper boss and a sliding guide block, the lateral width of the sliding guide block is wider than that of the upper boss, and the upper boss and the sliding guide block are integrated or combined integrally on the sliding guide block; the sliding guide block is limited in the convex guide chute in the guide sliding seat body and cannot move up and down; the upper longitudinal sliding block is provided with a screw hole through which an anchoring bolt passes, a counter bore for accommodating an anchoring bolt head or a nut is arranged on the screw hole on one surface of the lower surface of the sliding guide block of the upper longitudinal sliding block, and the mounted anchoring bolt head or nut does not expose one surface of the lower surface of the upper longitudinal sliding block in the counter bore.

The rubber block is a circular block, an oval block or a rectangular block, and is a rubber body part of a traditional bridge plate type rubber support or a rubber body plate part of a bridge basin type rubber support; when the rubber block bears the pressure transmitted from the beam body, the middle part of the rubber block is uniformly and elastically expanded outwards and the periphery of the rubber block is uniformly expanded; when the pressure transmitted from the beam body borne by the rubber block is reduced, the outer edge of the rubber block elastically contracts towards the middle part.

The lower longitudinal sliding block is a rectangular block body with or without a lower groove on one surface, and the rectangular block body outside the lower groove is provided with a sliding hole for inserting the upright post sliding guide pin; the sliding hole on the lower longitudinal sliding block is correspondingly communicated with the sliding hole on one surface under the upper longitudinal sliding block;

the grooves comprise an upper groove and a lower groove, the groove on the upper longitudinal sliding block is the upper groove, and the groove on the lower longitudinal sliding block is the lower groove; the groove is a circular groove, an elliptical groove or a rectangular groove, and the shape of the groove is set according to the shape of the rubber block; when the longitudinal sliding upper block, the rubber block and the longitudinal sliding lower block are matched and combined to form a longitudinal sliding group, grooves are simultaneously formed on the longitudinal sliding upper block and the longitudinal sliding lower block to form double-sided grooves, or only the longitudinal sliding upper block or the longitudinal sliding lower block is provided with grooves to form single-sided grooves; when the longitudinal sliding upper block is matched with the rubber block to be combined into a longitudinal sliding group, only the longitudinal sliding upper block is provided with a groove to form a single-side groove, or the longitudinal sliding upper block is not provided with a groove;

when the longitudinal sliding upper block is matched with the rubber block and the longitudinal sliding lower block to be combined into a longitudinal sliding group, the sliding guide block outside the upper groove is provided with a sliding hole for inserting the upright post sliding guide pin; when the longitudinal sliding upper block is only matched with the rubber block to be combined into a longitudinal sliding group, the sliding guide block outside the upper groove can be free from a sliding hole for inserting the upright post sliding guide pin;

the transverse direction refers to the direction of the cross section of the beam body, the direction of the cross section of the guide chute and the direction along the cover beam, and the longitudinal direction refers to the direction of the beam body and the direction of the notch of the guide chute.

The upper part and the lower part are opposite, the installation position of the guide sliding seat body and the installation position of the longitudinal sliding group are also opposite, and the installation positions can be interchanged.

When the longitudinal sliding upper block, the longitudinal sliding guide lower block and the sliding guide seat body are manufactured, the outline of the inner cavity and the outline of the outer cavity can be chamfered or rounded.

In order to facilitate the installation and manufacture of the guide slide seat body, the guide slide seat body can combine the transverse limiting part, the locking limiting part and the bearing part of the guide slide seat body after being manufactured separately into a whole, can combine the transverse limiting part and the locking limiting part of the guide slide seat body with the bearing part of the guide slide seat body after being manufactured separately into a whole, can combine the locking limiting part of the guide slide seat body with the transverse limiting part and the bearing part of the guide slide seat body after being manufactured separately into a whole, and can combine the locking limiting part and the upper part of the transverse limiting part of the guide slide seat body with the lower part and the bearing part of the transverse limiting part of the guide slide seat body into a whole after being manufactured separately.

In order to increase the longitudinal sliding performance of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block in the sliding guide groove, the parts of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block, which are in contact with the sliding guide groove, are ground and polished to form smooth contact surfaces, so that the longitudinal sliding performance of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block in the sliding guide groove is increased, the phenomenon that the bridge pier is subjected to excessive tension or thrust is avoided due to extension or shortening caused by expansion and contraction of heat and generated when the temperature of a beam changes is ensured, and the independent support of the pier is ensured.

In order to push the longitudinal sliding upper block and the longitudinal sliding lower block to smoothly slide back and forth in the guide sliding groove when the longitudinal sliding upper block and the longitudinal sliding lower block stretch due to expansion caused by heat and contraction caused by cold of the beam body, lubricating grooves added with lubricant are formed in one surface below the longitudinal sliding lower block and two side surfaces of the longitudinal sliding upper block and the longitudinal sliding lower block, or lubricating grooves are formed in the guide sliding groove, and the longitudinal sliding lower block and the longitudinal sliding upper block are lubricated with the contact part of the guide sliding groove of the guide sliding base body by using the lubricant; the lubricant is preferably graphite lubricant and is graphite lithium-based grease.

In order to enable the rubber vibration-damping rollover-prevention support to have a vibration-damping effect when bearing the beam body and the bearing gravity on the beam body, the rubber block is made of rubber with elastic contraction and elastic deformation control expansion functions, and the rubber block has elastic stretching and elastic contraction functions.

In order to avoid the stress concentration generated when the rubber block bears the gravity on the upper surface, the upper surface and the lower surface of the rubber block adopt planes or arc surfaces, and the planes or the arc surfaces are fully contacted with the upper longitudinal sliding block when bearing the pressure transmitted by the upper longitudinal sliding block, so that the rubber block is uniformly stressed to eliminate the concentrated stress.

In order to prevent dust from entering the guide chute of the guide sliding seat body and accelerating the abrasion between the longitudinal sliding upper block and the longitudinal sliding lower block and the guide chute, the front end and the rear end of the guide chute and the gap between the upper opening part of the guide chute and the upper lug boss of the longitudinal sliding upper block are sealed by a wind dust sleeve.

After the rubber vibration-damping rollover-prevention support is fixed between a beam body of a viaduct and a support cushion at the upper end of a cover beam or a pier, when a heavy-duty car passes through the bridge deck of the viaduct, vibration and gravity of the heavy-duty car passing through the bridge are transmitted to the beam body through wheels, the beam body is transmitted to the longitudinal sliding upper block, the longitudinal sliding upper block is transmitted to the rubber block, the rubber block directly transmits the gravity to a bearing part of the slide guiding seat body after vibration and vibration are eliminated, or the rubber block transmits the gravity to the longitudinal sliding lower block after vibration and vibration are eliminated, and then transmits the gravity to the bearing part of the slide guiding seat body; the rubber block generates slight elastic fluctuation from the center of the rubber block to the periphery of the outer edge after absorbing the vibration and shock transmitted from the upper surface, thereby eliminating the vibration and shock generated on the bridge deck of the viaduct when the lorry passes through; when the rubber block bears the gravity transmitted from the upper surface, the gravity presses downwards from the upper surface of the rubber block to enable the rubber block to deform transversely to form elastic stretching of the rubber block from the center to the outer edge, and the deformed rubber block bears the gravity of the beam body and the truck;

when the lorry on the bridge deck of the viaduct passes through the single side, the pressure of the beam body on one side bearing the lorry, which presses the longitudinal sliding upper block and the rubber block, is increased, and the pressure of the beam body on one side without bearing the lorry, which presses the longitudinal sliding upper block and the rubber block is reduced; at the moment, the beam body on one side without bearing the truck presses the longitudinal guide sliding group and cannot move upwards and slide towards two sides in the guide sliding groove of the guide sliding seat body, the beam body on one side without bearing the truck presses the longitudinal guide sliding group and cannot move downwards and slide towards the outside in the guide sliding groove of the guide sliding seat body, the longitudinal guide sliding group is locked and limited and cannot move upwards and downwards and slide towards the side in the guide sliding groove of the guide sliding seat body, so that when the truck on the bridge floor of the viaduct passes through the single-side overload, the viaduct of the single-pier single-support supporting beam body cannot be laterally turned over due to the locking and limiting between the guide sliding seat body and the longitudinal guide sliding group, and the stability of the single-pier single-support viaduct when the truck passes through the viaduct is improved; meanwhile, after the rubber vibration-damping anti-rollover support is adopted, the viaduct with an impatient bend can be changed into a viaduct supported by single piers, so that the construction cost of the viaduct is reduced;

when weather changes, the beam body contracts or extends along with the change of temperature, and drives the longitudinal sliding upper block of the longitudinal sliding group to longitudinally move in the guide sliding groove in the guide sliding seat body, or drives the longitudinal sliding upper block and the longitudinal sliding lower block of the longitudinal sliding group to longitudinally move in the guide sliding groove in the guide sliding seat body, so that the pulling force or the pushing force of the beam body to the bridge pier when the beam body contracts or extends is eliminated, and the bridge pier does not deviate or skew.

The rubber vibration-damping rollover-prevention support is suitable for installing and using the viaduct of the single support supporting beam body of the transverse single pier, is also suitable for installing and using the viaduct of the single support supporting beam body of the transverse double piers and the transverse multiple piers and the multiple support supporting beam body, is also suitable for replacing the traditional support, and is also suitable for installing and using the rollover-prevention support for replacing the traditional support to prevent the beam body of the viaduct from rollover.

Compared with the traditional support, the rubber vibration-damping rollover-prevention support has the prominent essential characteristics that:

1. the technical problems that the traditional support has poor transverse stability to the beam body of the viaduct and can not prevent the beam body of the viaduct from turning over are fundamentally solved, and the precedent that the support used by the viaduct can completely prevent the side turning over is created; the device integrates the functions of preventing the side turning of the viaduct with the single support supporting beam body with the single pier and adapting to the change of expansion with heat and contraction with cold of the viaduct, is suitable for the installation and the use of the viaduct with the single support supporting beam body with the single transverse pier, the single support supporting beam body with the double transverse piers and the multiple transverse piers and the viaduct with the multiple support supporting beam bodies, and is also suitable for the installation and the use of the side turning prevention support for replacing the traditional support into the side turning prevention of the viaduct; the use safety and the use stability of the viaduct are improved, and the side turning of the viaduct is prevented;

2. the vibration and shock of the vehicle when passing are absorbed by the elastic fluctuation generated from the center of the rubber block to the periphery of the outer edge through the elastic deformation of the rubber block;

3. the change of the number and the weight of passing trucks is adapted through the elastic extension and the elastic contraction of the rubber blocks generated at the periphery of the center and the outer edge;

4. the stress of the rubber block is uniform through the elastic deformation of the rubber block, so that the concentrated stress generated by the rubber block when bearing the load is avoided;

5. the sliding guide block and the longitudinal guide sliding lower block of the longitudinal sliding upper block can not move up and down in the guide sliding chute by the locking and limiting part of the guide sliding seat body, so that two sides of the viaduct body can not swing up and down, and the viaduct body of the viaduct body which locks the transverse single pier single support to support the beam body can not turn over to any side;

6. the longitudinal guide sliding block is limited not to slide towards two sides by the transverse limiting part in the guide sliding seat body, so that the beam body is always kept on the rubber vibration-damping rollover-prevention support without transverse deviation of position;

7. the anti-rollover safety coefficient of the traditional support is only 40-50% of the bearing capacity of the support, the rubber vibration-damping anti-rollover support with the anti-rollover safety coefficient being dozens of times to hundreds of times of the bearing capacity of the traditional support is improved, the anti-rollover capacity of the viaduct with the single-pier support supporting beam body is obviously improved, and the bearing safety of the viaduct with the single-pier support supporting beam body and the passing safety of the high load of a truck continuously passing on the viaduct are improved.

The rubber vibration reduction rollover prevention support has the beneficial effects that:

7. the rubber vibration-damping anti-rollover support is lubricated by a lubricant, so that the rubber vibration-damping anti-rollover support is long in service life and strong in anti-rollover locking capability;

8. the anti-rollover safety coefficient of the traditional support is only 40-50% of the bearing capacity of the support, the rubber vibration-damping anti-rollover support with the anti-rollover safety coefficient being dozens of times to hundreds of times of the bearing capacity of the traditional support is improved, the anti-rollover capacity of the viaduct with the single-pier support supporting beam body is obviously improved, and the bearing safety of the viaduct with the single-pier support supporting beam body and the passing safety of the high load of a truck continuously passing on the viaduct are improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a longitudinal upper block with an upper groove, a rubber block and a lower block with a lower groove mounted in a guide carriage body;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

fig. 3 is an external structural view of the left side view of fig. 1.

FIG. 4 is a schematic cross-sectional view of the longitudinal upper block and rubber block with upper grooves mounted in the guide carriage body;

FIG. 5 is a schematic cross-sectional view of B-B of FIG. 4;

fig. 6 is an external view structure diagram of the left side view of fig. 4.

FIG. 7 is a schematic cross-sectional view of the longitudinal upper block and rubber block mounted in the guide carriage body without the upper groove;

FIG. 8 is a schematic cross-sectional view of C-C of FIG. 7;

fig. 9 is an external view structure diagram of the left side view of fig. 7.

FIG. 10 is a schematic cross-sectional view of a slide guide seat body;

FIG. 11 is a schematic cross-sectional view of D-D of FIG. 10;

fig. 12 is an external structural view of the top view of fig. 10.

FIG. 13 is a schematic view of the outer structure of the upper block sliding longitudinally;

FIG. 14 is a schematic structural diagram of the left side view of FIG. 13;

FIG. 15 is a schematic exterior view of the bottom view of FIG. 13;

FIG. 16 is a schematic cross-sectional view of the left side view of FIG. 13 with the upper groove;

fig. 17 is a schematic view of the external structure of fig. 13 using a bottom view of the upper groove.

FIG. 18 is a schematic cross-sectional view of the lower groove employed in the longitudinally sliding lower block;

fig. 19 is a schematic structural view of fig. 18 in plan view using a lower groove.

Shown in the figure: the device comprises a slide guide seat body 1, a longitudinal slide upper block 2, a longitudinal slide lower block 3, a rubber block 4, a slide guide groove 5, a locking limiting part 6, an upper groove 7, a lower groove 8, a slide guide block 9, an upper boss 10 and a longitudinal notch 11.

Detailed Description

The rubber vibration-damping anti-rollover support comprises a guide sliding seat body 1 consisting of a transverse limiting part, a locking limiting part 6 and a bearing part, a longitudinal sliding group consisting of a longitudinal sliding lower plate, a rubber block 4 and a longitudinal sliding upper block 2 or a longitudinal sliding group consisting of a longitudinal sliding upper plate and a rubber block 4, and a guide sliding groove 5 on the guide sliding seat body 1;

a guide chute 5 with a long opening on the long side surface to make the cross section of the rectangular tubular guide slide seat body 1 in a convex shape is arranged in the guide chute 5, a longitudinal sliding group consisting of a longitudinal sliding lower plate, a rubber block 4 and a longitudinal sliding upper block 2 is arranged in the guide chute 5 or a longitudinal sliding group consisting of a longitudinal sliding upper plate and a rubber block 4 is arranged in the guide chute 5, one surface of the upper surface of the longitudinal sliding upper block 2 arranged in the guide chute 5 is higher than the upper end of the guide slide seat body 1, and a sliding guide block 9 of the longitudinal sliding upper block 2 is wider than an upper boss 10; the rubber block 4 is arranged in an upper groove 7 on the lower surface of the longitudinal sliding upper block 2 and a lower groove 8 on the upper surface of the longitudinal sliding lower block 3, or the rubber block 4 is arranged between the lower surface of the longitudinal sliding upper block 2 and the lower groove 8 on the upper surface of the longitudinal sliding lower block 3, or the rubber block 4 is arranged between the upper groove 7 on the lower surface of the longitudinal sliding upper block 2 and the upper surface of the longitudinal sliding lower block 3, or the rubber block 4 is arranged in the upper groove 7 on the lower surface of the longitudinal sliding upper block 2 and the upper surface of the bottom of the guide sliding chute 5 of the guide sliding seat body 1, or the rubber block 4 is arranged in the lower surface of the longitudinal sliding upper block 2 and the upper surface of the bottom of the guide sliding chute 5 of the guide sliding seat body 1;

the slide guide piece 9 of the longitudinal slide upper piece 2 is restrained and locked from moving upward between the lower face of the lock restraining portion 6 of the guide slide groove 5 and the upper face of the longitudinal slide lower piece 3, the longitudinal slide lower piece 3 is restrained and locked from moving downward between the lower face of the slide guide piece 9 of the longitudinal slide upper piece 2 and the upper face of the load bearing portion of the guide slide groove 5, the longitudinal slide upper piece 2 and the longitudinal slide lower piece 3 are simultaneously restrained from moving laterally between the two lateral restraining portions of the guide slide groove 5, the integral linkage between the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 and the integral linkage type longitudinal sliding of the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 in the guide sliding groove 5 are positioned by respectively inserting the two ends of the upright post guide sliding pin into the sliding hole of the longitudinal sliding upper block 2 and the sliding hole of the longitudinal sliding lower block 3; alternatively, the sliding guide block 9 of the vertically sliding upper block 2 is located on the lower surface of the locking limit portion 6 of the guide chute 5, the rubber block 4 is located on the upper surface of the bearing portion of the guide chute 5, so that the vertically sliding upper block 2 is limited and locked and cannot move up and down, the vertically sliding upper block 2 and the rubber block 4 are located between the two laterally limited portions of the guide chute 5, so that the vertically sliding upper block 2 cannot move laterally, the contact surface is located by friction generated by the contact between the rubber block 4 and the lower surface of the vertically sliding upper block 2 and the bottom of the guide chute 5, and the vertically sliding upper block 2 can only slide vertically in the guide chute 5 by the deformation toughness and elastic deformation of the rubber block 4.

In actual use, the components of the longitudinal sliding group are matched with the guide sliding groove 5 in the following five matching modes:

firstly, rubber blocks 4 are arranged in an upper groove 7 on one surface of the lower surface of the longitudinal sliding upper block 2 and a lower groove 8 on one surface of the upper surface of the longitudinal sliding lower block 3,the slide guide block 9 for longitudinally sliding the upper block 2 is engaged with the lower surface of the lock restricting portion 6 of the guide chute 5 Between the upper surface and the surface of the lower longitudinal sliding block 3, the lower longitudinal sliding block 3 is arranged below the sliding guide block 9 of the upper longitudinal sliding block 2 Between the surface and the upper surface of the bearing part of the guide chute 5, the upper block 2 and the lower block 3 slide longitudinally and simultaneously on the guide chute 5 Between the two transverse limiting parts, the two ends of the guide sliding pin are respectively inserted into the sliding holes of the upper block 2 which slides longitudinally and inserted Into the sliding hole of the lower longitudinal sliding block 3 to position between the upper longitudinal sliding block 2 and the lower longitudinal sliding block 3Integral linkage of, and drives the upper block 2 and the lower block 3 which slide longitudinally to slide longitudinally in the guide chute 5 in an integral linkage type longitudinal sliding manner；

Secondly, a rubber block 4 is arranged between the lower surface of the upper longitudinal sliding block 2 and the lower groove 8 on the upper surface of the lower longitudinal sliding block 3,the slide guide block 9 of the longitudinal slide upper block 2 slides longitudinally on one side of the lower face of the lock restricting portion 6 of the guide chute 5 Between the upper surface of the movable lower block 3, the lower surface of the longitudinal sliding lower block 3 is arranged below the sliding guide block 9 of the longitudinal sliding upper block 2 and the guide Between the upper surface and the surface of the bearing part of the sliding chute 5, the upper block 2 and the lower block 3 which slide longitudinally are arranged on two transverse sides of the sliding chute 5 at the same time Between the limiting parts, two ends of the upright post sliding guide pin are respectively inserted into the sliding holes of the longitudinal sliding upper block 2 and inserted into the longitudinal direction The sliding hole of the sliding lower block 3 is used for positioning the integral linkage between the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 and driving the linkage Integral linkage type longitudinal sliding of the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 in the guide chute 5；

Thirdly, a rubber block 4 is arranged between the upper groove 7 on the lower surface of the longitudinal sliding upper block 2 and the upper surface of the longitudinal sliding lower block 3,the slide guide block 9 for longitudinally sliding the upper block 2 is provided under the lock restricting portion 6 of the guide chute 5 on one side thereof in the longitudinal direction Between the upper surface of the lower sliding block 3, the lower sliding block 3 is longitudinally slid between the lower surface of the sliding guide block 9 of the upper sliding block 2 and the upper surface Between the upper surface and the surface of the bearing part of the guide chute 5, the upper block 2 and the lower block 3 which slide longitudinally are arranged on two guide chutes 5 at the same time Between the transverse limiting parts, two ends of the upright post guide sliding pin are respectively inserted into the sliding hole of the longitudinal sliding upper block 2 and inserted into the longitudinal sliding upper block The sliding hole of the lower sliding block 3 is used for positioning the integral linkage and the driving between the upper longitudinal sliding block 2 and the lower longitudinal sliding block 3 The upper block 2 and the lower block 3 slide in the guide chute 5 in the longitudinal direction in an integral linkage type longitudinal sliding manner；

Fourthly, a rubber block 4 is arranged in an upper groove 7 on one surface of the lower surface of the longitudinal sliding upper block 2 and an upper surface of the bottom of the guide sliding chute 5 of the guide sliding seat body 1,the sliding guide block 9 of the upper block 2 slides longitudinally in the guide slideThe lower face of the lock restricting portion 6 of the groove 5 An upper groove formed on the lower surface of the sliding guide block 9 of the rubber block 4 for sliding the rubber block 4 in the longitudinal direction with respect to the upper surface of the rubber block 4 7 and the upper surface of the bearing part of the guide chute 5, the upper block 2 and the rubber block 4 are longitudinally slid on two transverse sides of the guide chute 5 simultaneously Between the limiting parts, the rubber block 4 is connected with the upper groove 7 on the lower surface of the upper block 2 which slides longitudinally and the bottom of the guide chute 5 The friction generated by the contact is used for positioning the contact surface, and the rubber block 4 is deformed and elastically deformed to slide longitudinally The block 2 can only slide longitudinally in the guide slot 5；

Fifthly, a rubber block 4 is arranged on one surface of the lower surface of the longitudinal sliding upper block 2 and one surface of the upper surface of the bottom of the guide sliding chute 5 of the guide sliding seat body 1,the slide guide block 9 for longitudinally sliding the upper block 2 is provided below the lock restricting portion 6 of the guide groove 5 and at one side with the rubber block 4 Between the upper surface and the lower surface of a sliding guide block 9 for longitudinally sliding the rubber block 4 on the upper block 2 and the bearing part of the guide chute 5 Between the upper surfaces, the upper block 2 and the rubber block 4 are longitudinally slid between the two lateral limit parts of the guide chute 5 at the same time by rubber The rubber block 4 is contacted with the lower surface of the upper longitudinal sliding block 2 and the bottom of the guide chute 5 to generate friction so as to position the contact surface, the upper block 2 can only longitudinally slide in the guide chute 5 by the deformation toughness and elastic deformation of the rubber block 4 Movable part。

The longitudinal sliding upper block 2 penetrates through the support upper steel plate through an anchoring bolt and then fixes the beam body and the longitudinal sliding upper block 2 together with a beam bottom embedded steel plate in the beam body; the guide sliding seat body 1 passes through a lower steel plate of the support through an anchor bolt and then is fixed with the guide sliding seat body 1 together with the upper end of the bent cap or the pier and a support cushion stone thereon, or the guide sliding seat body 1 is fixed with the upper end of the bent cap or the pier and a support cushion stone thereon together with the guide sliding seat body 1 through the anchor bolt and a threaded sleeve pre-embedded in the support cushion stone thereon.

The two sides of the sliding guide block 9 of the longitudinal sliding upper block 2 and the two sides of the longitudinal sliding lower block 3 are locked and limited by the locking limiting parts 6 at the two sides of the long opening of the guide sliding chute 5 in the guide sliding seat body 1 not to move up and down or the two sides of the sliding guide block 9 of the longitudinal sliding upper block 2 are locked and limited not to move up and down, and then the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 are limited not to slide towards the two sides or the longitudinal sliding upper block 2 is limited not to slide towards the two sides by the transverse limiting parts of the guide sliding chute 5 in the guide sliding seat body 1, so that the two sides of the viaduct body of the single-pier supporting beam body are locked not to swing up and down, and then the viaduct body of the single-pier supporting beam body is locked not to turn to any side.

The guide sliding seat body 1 is a rectangular tube type seat body with a long opening on the long side, and the long opening on the long side of the rectangular tube type combines the inside of the guide sliding seat body 1 and the opening into a convex guide sliding chute 5; the flat folding parts at two sides of the long opening of the guide chute 5 are locking limiting parts 6, the vertical part below the flat folding part at the long opening of the guide chute 5 is a transverse limiting part, and the transverse part below the flat folding part of the guide chute 5 is a bearing part; the sliding guide blocks 9 at two sides of the longitudinal sliding upper block 2 are locked and limited by the locking and limiting part 6 of the sliding guide seat body 1 not to move up and down; the upper longitudinal sliding block 2 is limited not to slide to two sides by the transverse limiting part of the sliding guide seat body 1; all the gravity borne by the longitudinal sliding upper block 2 and the longitudinal sliding upper block 2 is borne by a bearing part of the sliding guide seat body 1; the bearing part of the guide sliding seat body 1 is provided with a screw hole for the anchor bolt to pass through, one surface of the upper surface of the bearing part of the screw hole is provided with a counter bore for accommodating the anchor bolt head or the nut, and the installed anchor bolt head or the nut does not expose out of the guide sliding groove 5 in the counter bore.

The longitudinal sliding upper block 2 is a convex block body with longitudinal notches 11 at the upper part or the middle part and two sides of the upper part, an upper groove 7 which is concave upwards is arranged on one surface of the lower surface of the block body or not, and a sliding guide block 9 outside the upper groove 7 is provided with or not provided with a sliding hole for inserting an upright post guide sliding pin; the longitudinal sliding upper block 2 comprises an upper boss 10 and a sliding guide block 9, the lateral width of the sliding guide block 9 is wider than that of the upper boss 10, and the upper boss 10 and the sliding guide block 9 are integrated or combined integrally above the sliding guide block 9; the sliding guide block 9 is limited in the convex guide chute 5 in the guide sliding seat body 1 and can not move up and down; the upper longitudinal sliding block 2 is provided with a screw hole through which an anchoring bolt passes, a counter bore for accommodating an anchoring bolt head or a nut is arranged on the screw hole on one surface below the sliding guide block 9 of the upper longitudinal sliding block 2, and the mounted anchoring bolt head or nut does not expose one surface below the upper longitudinal sliding block 2 in the counter bore.

The rubber block 4 is a circular block, an oval block or a rectangular block, and is a rubber body part of a traditional bridge plate type rubber support or a rubber body plate part of a bridge basin type rubber support; when the rubber block 4 bears the pressure transmitted from the beam body, the middle part of the rubber block 4 is uniformly and elastically expanded outwards and the periphery; when the pressure transmitted from the beam body to the rubber block 4 is reduced, the outer edge of the rubber block 4 elastically contracts towards the middle.

The lower longitudinal sliding block 3 is a rectangular block body with or without a lower groove 8 on one surface, and the rectangular block body outside the lower groove 8 is provided with a sliding hole for inserting the upright post sliding guide pin; the sliding hole on the lower longitudinal sliding block 3 is correspondingly communicated with the sliding hole on the lower surface of the upper longitudinal sliding block 2.

The grooves comprise an upper groove 7 and a lower groove 8, the groove on the upper longitudinal sliding block 2 is the upper groove 7, and the groove on the lower longitudinal sliding block 3 is the lower groove 8; the groove is a circular groove, an elliptical groove or a rectangular groove, and the shape of the groove is set according to the shape of the rubber block 4; when the longitudinal sliding upper block 2, the rubber block 4 and the longitudinal sliding lower block 3 are matched and combined to form a longitudinal sliding group, grooves are simultaneously formed on the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 to form double-sided grooves, or only the longitudinal sliding upper block 2 or the longitudinal sliding lower block 3 is provided with grooves to form single-sided grooves; when the longitudinal sliding upper block 2 and the rubber block 4 are matched and combined into a longitudinal sliding group, only the longitudinal sliding upper block 2 is provided with a groove to form a single-side groove, or the longitudinal sliding upper block 2 is not provided with a groove.

When the longitudinal sliding upper block 2, the rubber block 4 and the longitudinal sliding lower block 3 are matched and combined into a longitudinal sliding group, a sliding guide block 9 outside the upper groove 7 is provided with a sliding hole for inserting the upright post sliding guide pin; when the upper longitudinal sliding block 2 is combined with the rubber block 4 only to form a longitudinal sliding group, the sliding guide block 9 outside the upper groove 7 does not need to be provided with a sliding hole for inserting the upright post sliding guide pin.

The transverse direction refers to the direction of the cross section of the beam body, the direction of the cross section of the guide chute 5 and the direction along the capping beam, and the longitudinal direction refers to the direction of the beam body and the direction of the notch of the guide chute 5.

The upper part and the lower part are opposite, the installation position of the guide sliding seat body 1 and the installation position of the longitudinal sliding group are also opposite, and the installation positions can be interchanged.

When the longitudinal sliding upper block 2, the longitudinal sliding guide lower block and the sliding guide body 1 are manufactured, the outline of the inner cavity and the outline of the outer cavity can be chamfered or rounded.

In order to facilitate the installation and manufacture of the slide guide seat body 1, the slide guide seat body 1 may be manufactured by separately manufacturing the lateral restraining part, the locking restraining part 6, and the bearing part of the slide guide seat body 1 and then combining them together to form a whole, or may be manufactured by separately manufacturing the lateral restraining part and the locking restraining part 6 of the slide guide seat body 1 and the bearing part of the slide guide seat body 1 and then combining them to form a whole, or may be manufactured by separately manufacturing the locking restraining part 6 of the slide guide seat body 1 and the lateral restraining part and the bearing part of the slide guide seat body 1 and then combining them to form a whole, or may be manufactured by separately manufacturing the locking restraining part 6 and the upper part of the lateral restraining part of the slide guide seat body 1 and the lower part and the bearing part of the slide guide seat body 1 and then combining them to form a whole. In actual use, the following are preferably adopted: the locking limit part 6 of the slide guide holder body 1 is manufactured separately from the lateral limit part and the bearing part of the slide guide holder body 1 and then combined into a whole.

In order to increase the longitudinal sliding performance of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block in the sliding guide groove 5, the parts of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block, which are in contact with the sliding guide groove 5, are ground and polished to form smooth contact surfaces, so that the longitudinal sliding performance of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block in the sliding guide groove 5 is increased, and therefore, the phenomenon that the bridge pier is subjected to excessive tension or thrust is not generated due to extension or shortening caused by expansion and contraction of the beam body during temperature change is guaranteed, and the independent support of the bridge pier is further guaranteed.

In order to push the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 to smoothly slide back and forth in the guide sliding groove 5 when the beam body expands and contracts due to heat and cold, lubricating grooves added with lubricant are formed in one surface of the lower surface of the longitudinal sliding lower block 3 and two side surfaces of the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3, or lubricating grooves are formed in the guide sliding groove 5, and the contact parts of the longitudinal sliding lower block and the longitudinal sliding upper block 2 and the guide sliding groove 5 of the guide sliding base body 1 are lubricated by lubricant; the lubricant is preferably graphite lubricant and is graphite lithium-based grease.

In order to enable the rubber vibration-damping rollover-prevention support to have a vibration-damping effect when bearing the beam body and the bearing gravity on the beam body, the rubber block 4 is made of rubber with elastic contraction and elastic deformation control expansion functions, and the rubber block 4 has elastic expansion and elastic contraction functions.

In order to avoid the stress concentration generated when the rubber block 4 bears the gravity above, the upper surface and the lower surface of the rubber block 4 adopt planes or approximately arc-shaped surfaces, and the upper surface and the lower surface are fully contacted with the longitudinally sliding upper block 2 when bearing the pressure transmitted by the longitudinally sliding upper block 2, so that the rubber block 4 is uniformly stressed to eliminate the concentrated stress.

In order to prevent dust from entering the guide chute 5 of the guide slide seat body 1 and accelerating the abrasion between the longitudinal slide upper block 2 and the longitudinal slide lower block and the guide chute 5, a wind dust sleeve is adopted to seal the front end and the rear end of the guide chute 5 and the gap between the opening part of the upper surface of the guide chute 5 and the upper boss 10 of the longitudinal slide upper block 2.

After the rubber vibration-damping rollover-prevention support is fixed between a beam body of a viaduct and a support cushion at the upper end of a cover beam or a pier, when a heavy-duty car passes through the bridge deck of the viaduct, vibration and gravity of the heavy-duty car passing through the bridge are transmitted to the beam body through wheels, the beam body is transmitted to the longitudinal sliding upper block 2, the longitudinal sliding upper block 2 is transmitted to the rubber block 4, the rubber block 4 directly transmits the gravity to a bearing part of the slide guiding seat body 1 after vibration and vibration are eliminated, or the rubber block transmits the gravity to the longitudinal sliding lower block 3 after vibration and vibration are eliminated, and then the gravity is transmitted to the bearing part of the slide guiding seat body 1; the rubber block 4 generates slight elastic fluctuation from the center of the rubber block 4 to the periphery of the outer edge after absorbing the vibration and shock transmitted from the upper surface, thereby eliminating the vibration and shock generated on the bridge deck of the viaduct when the lorry passes through; when the rubber block 4 bears the gravity transmitted from the upper surface, the gravity presses downwards from the upper surface of the rubber block 4 to enable the rubber block 4 to deform transversely to form elastic stretching of the rubber block 4 from the center to the outer edge, and the deformed rubber block 4 bears the gravity of a beam body and a truck;

when the lorry on the bridge deck of the viaduct passes through the single side, the pressure of the beam body on one side bearing the lorry, which presses the longitudinal sliding upper block 2 and the rubber block 4, is increased, and the pressure of the beam body on one side without bearing the lorry, which presses the longitudinal sliding upper block 2 and the rubber block 4 is reduced; at the moment, the beam body on one side without bearing the truck presses the longitudinal guide sliding group to be incapable of moving upwards and sliding towards two sides in the guide sliding groove 5 of the guide sliding seat body 1, the beam body on one side bearing the truck presses the longitudinal guide sliding group to be incapable of moving downwards and sliding outwards in the guide sliding groove 5 of the guide sliding seat body 1, the longitudinal guide sliding group is locked and limited to be incapable of moving upwards and downwards and sliding towards the side in the guide sliding groove 5 of the guide sliding seat body 1, so that when the truck on the bridge floor of the viaduct bridge passes through the viaduct in a unilateral overload mode, the viaduct of the single-pier single-support beam body cannot be laterally turned over due to the locking and limitation between the guide sliding seat body 1 and the longitudinal guide sliding group, and the stability of the single-pier single-support viaduct during passing of the truck is improved; meanwhile, after the rubber vibration-damping anti-rollover support is adopted, the viaduct with an impatient bend can be changed into a viaduct supported by single piers, so that the construction cost of the viaduct is reduced;

when weather changes, the beam body contracts or extends along with the change of temperature, and drives the longitudinal sliding upper block 2 of the longitudinal sliding group to longitudinally move in the guide sliding groove 5 in the guide sliding seat body 1, or drives the longitudinal sliding upper block 2 and the longitudinal sliding lower block 3 of the longitudinal sliding group to longitudinally move in the guide sliding groove 5 in the guide sliding seat body 1, so that the pulling force or the pushing force of the beam body on the bridge pier when the beam body contracts or extends is eliminated, and the bridge pier does not deviate or skew.

Claims

1. The utility model provides a rubber damping prevents support of turning on one's side which characterized in that: the rubber vibration-damping rollover-prevention support comprises a guide sliding seat body, a longitudinal sliding group and a guide sliding chute, wherein the guide sliding seat body is composed of a transverse limiting part, a locking limiting part and a bearing part, the longitudinal sliding group is composed of a longitudinal sliding lower plate, a rubber block and a longitudinal sliding upper block or the longitudinal sliding group is composed of a longitudinal sliding upper plate and a rubber block, and the guide sliding chute is arranged on the guide sliding seat body.

2. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: the long side surface is provided with a long opening so that the cross section of the rectangular tubular guide sliding seat body is in a convex shape, a longitudinal sliding group consisting of a longitudinal sliding lower plate, a rubber block and a longitudinal sliding upper block is arranged in the guide sliding groove or a longitudinal sliding group consisting of a longitudinal sliding upper plate and a rubber block is arranged in the guide sliding groove, one surface of the upper surface of the longitudinal sliding upper block arranged in the guide sliding groove is higher than the upper end of the guide sliding seat body, and the sliding guide block of the longitudinal sliding upper block is wider than the upper boss; the rubber blocks are arranged in an upper groove on the lower surface of the longitudinal sliding upper block and a lower groove on the upper surface of the longitudinal sliding lower block, or the rubber blocks are arranged between the lower surface of the longitudinal sliding upper block and the lower groove on the upper surface of the longitudinal sliding lower block, or the rubber blocks are arranged between the upper groove on the lower surface of the longitudinal sliding upper block and the upper surface of the longitudinal sliding lower block, or the rubber blocks are arranged in the upper groove on the lower surface of the longitudinal sliding upper block and the upper surface of the bottom of the guide sliding groove of the guide sliding seat body, or the rubber blocks are arranged in the lower surface of the longitudinal sliding upper block and the upper surface of the bottom of the guide sliding groove of the guide sliding seat body;

3. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: when the longitudinal sliding upper block is matched with the rubber block and the longitudinal sliding lower block to be combined into a longitudinal sliding group, the sliding guide block outside the upper groove is provided with a sliding hole for inserting the upright post sliding guide pin; when the upper longitudinal sliding block is only matched with the rubber block to be combined into a longitudinal sliding group, the sliding guide block outside the upper groove is provided with or not provided with a sliding hole for inserting the upright post sliding guide pin.

4. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: the guide sliding seat body is a rectangular tube type seat body with a long opening on the long side surface, and the long opening on the long side surface of the rectangular tube type combines the inside of the guide sliding seat body and the opening into a convex guide sliding chute; the horizontal folding parts at two sides of the long opening of the guide chute are locking limiting parts, the vertical part below the horizontal folding part at the long opening of the guide chute is a horizontal limiting part, and the horizontal part below the horizontal folding part of the guide chute is a bearing part; the sliding guide blocks on two sides of the longitudinal sliding upper block are locked and limited by the locking and limiting part of the sliding guide seat body not to move up and down;

the longitudinal sliding upper block is a convex block body with longitudinal notches at the upper part or the middle part and two sides of the upper part, one surface of the lower surface of the block body is provided with or not provided with an upper groove which is concave upwards, and the sliding guide block outside the upper groove is provided with or not provided with a sliding hole for inserting the upright post sliding guide pin; the longitudinal sliding upper block comprises an upper boss and a sliding guide block, the lateral width of the sliding guide block is wider than that of the upper boss, and the upper boss and the sliding guide block are integrated or combined integrally on the sliding guide block; the sliding guide block is limited in the convex guide chute in the guide sliding seat body and cannot move up and down;

the lower longitudinal sliding block is a rectangular block body with or without a lower groove on one surface, and the rectangular block body outside the lower groove is provided with a sliding hole for inserting the upright post sliding guide pin; the sliding hole on the lower longitudinal sliding block is correspondingly communicated with the sliding hole on the lower surface of the upper longitudinal sliding block.

5. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: the upper part and the lower part are opposite, the installation position of the guide sliding seat body and the installation position of the longitudinal sliding group are also opposite, and the installation positions can be interchanged.

6. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: the contact parts of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block and the sliding guide groove are ground and polished to form smooth contact surfaces, so that the longitudinal sliding performance of the longitudinal sliding guide upper block and the longitudinal sliding guide lower block in the sliding guide groove is improved, the situation that the extension or shortening caused by expansion with heat and contraction with cold when the temperature of a beam body changes does not generate overlarge pulling force or pushing force between piers is ensured, and then the independent support of the piers is ensured.

7. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: lubricating grooves for adding lubricant are arranged on one surface below the longitudinal sliding lower block and two side surfaces of the longitudinal sliding upper block and the longitudinal sliding lower block, or lubricating grooves are arranged in the guide sliding grooves, and the contact parts of the longitudinal sliding lower block and the longitudinal sliding upper block and the guide sliding grooves of the guide sliding base body are lubricated by using the lubricant.

8. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: the grooves comprise an upper groove and a lower groove, and the grooves are circular grooves, elliptical grooves or rectangular grooves; grooves are formed on the longitudinal sliding upper block and the longitudinal sliding lower block simultaneously to form double-sided grooves, or grooves are formed only on the longitudinal sliding upper block or the longitudinal sliding lower block to form single-sided grooves.

9. The rubber vibration-damping rollover-prevention support as set forth in claim 1, wherein: the rubber vibration-damping rollover-prevention support is suitable for installing and using the viaduct of the single support supporting beam body of the transverse single pier, is also suitable for installing and using the viaduct of the single support supporting beam body of the transverse double piers and the transverse multiple piers and the multiple support supporting beam body, is also suitable for replacing the traditional support, and is also suitable for installing and using the rollover-prevention support for replacing the traditional support to prevent the beam body of the viaduct from rollover.