CN112962433A - Anti-seismic noise-reducing support for bridge - Google Patents
Anti-seismic noise-reducing support for bridge Download PDFInfo
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- CN112962433A CN112962433A CN202110098293.1A CN202110098293A CN112962433A CN 112962433 A CN112962433 A CN 112962433A CN 202110098293 A CN202110098293 A CN 202110098293A CN 112962433 A CN112962433 A CN 112962433A
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- 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
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Abstract
The invention discloses an anti-seismic noise-reduction support for a bridge, which comprises an upper connecting member connected with a beam body and a lower connecting member connected with a bent cap, wherein an elastic part is arranged between the upper connecting member and the lower connecting member; the elastic piece is a rubber block, the upper connecting member comprises an upper connecting plate and an upper rigid support body, the lower connecting member comprises a lower connecting plate and a lower rigid support body, the upper connecting plate is attached to the beam body, the lower connecting plate is attached to the cover beam, and the rubber block is arranged between the upper rigid support body and the lower rigid support body; the spring steel sheet annular ring continuously penetrates between the upper connecting plate and the upper rigid supporting body and between the lower connecting plate and the lower rigid supporting body, and arc shapes are formed on two sides of the spring steel sheet annular ring between the upper connecting member and the lower connecting member.
Description
Technical Field
The invention relates to an anti-seismic noise-reduction support for a bridge.
Background
Chinese patent CN105220788A discloses a universal damping device, and specifically discloses: the device comprises two panels and at least three limb plates, wherein the two panels are fixedly connected with two ends of the limb plates respectively. The limb plates are eight. The panel is a circular, polygonal or regular polygonal steel plate. The limb plates are U-shaped steel plates. The U-shaped steel plate is fixedly connected with the panel with an inward or outward opening. The U-shaped steel plate and the panel are connected in a welding mode, or bolt holes are formed in the corresponding positions of the panel and the U-shaped steel plate and connected through bolts, or the U-shaped steel plate and the panel are fixedly connected through welding and bolts. Although the structure can play a role in resisting shock in the circumferential direction, the structure cannot be really applied to actual production, and the strength and the shock absorption effect are poor.
Chinese patent CN203795595U discloses a damping adjustable rubber vibration isolation bearing, and specifically discloses: the steel plate support comprises an upper connecting steel plate, a support main body, a lower connecting steel plate and a flat steel fastener, wherein the support main body is positioned at the central position of a support and is formed by alternately placing a rubber strip and a thin steel plate between an upper end steel plate and a lower end steel plate, the upper connecting steel plate and the lower connecting steel plate are parallel to each other and are respectively fixedly connected with the upper end steel plate and the lower end steel plate of the support main body by using high-strength bolts, the upper end part and the lower end part of the flat steel fastener are both rectangular sections, the upper end part is fixedly connected with the lower side of the upper connecting steel plate by using two connecting bolts, the lower end part is fixedly connected with the upper side of the lower connecting steel plate by using two connecting bolts, bolt holes of the connecting bolts are arranged along the long side of the rectangular section, the width of the rectangular section is larger than the width of the cross section of a curved part, the connecting position, and this plane is perpendicular to the support body. Although the above patent can play the absorbing effect, its bridge structures, and structural strength and anti-seismic performance in this patent all can not reach the demand of bridge, and fragile does not have antidumping's effect moreover.
Disclosure of Invention
The invention aims to provide an anti-seismic noise-reduction support for a bridge.
In order to achieve the above object, the present invention is configured such that: an anti-seismic noise-reduction support for a bridge comprises an upper connecting member connected with a beam body and a lower connecting member connected with a bent cap, wherein an elastic part is arranged between the upper connecting member and the lower connecting member; the elastic piece is a rubber block, the upper connecting member comprises an upper connecting plate and an upper rigid support body, the lower connecting member comprises a lower connecting plate and a lower rigid support body, the upper connecting plate is attached to the beam body, the lower connecting plate is attached to the cover beam, and the rubber block is arranged between the upper rigid support body and the lower rigid support body; the integrated annular spring steel sheet ring continuously penetrates between the upper connecting plate and the upper rigid supporting body and between the lower connecting plate and the lower rigid supporting body, and arc shapes are formed on two sides between the upper connecting member and the lower connecting member; transverse grooves with cambered surfaces on the bottom surfaces are respectively arranged on the upper surface of the upper rigid supporting body and the lower surface of the lower rigid supporting body, the transverse grooves on the upper rigid supporting body are opposite to the transverse grooves on the lower rigid supporting body, and the annular ring of the spring steel sheet is positioned in the transverse grooves; the transverse groove direction is perpendicular to the driving direction and a plurality of transverse grooves are arranged along the driving direction. The support that adopts above-mentioned mode to set up not only can play the effect of antidetonation noise reduction, can also play the effect of antidumping.
Further, a rubber strip is attached to the bottom surface of the lateral groove, and rubber strips are attached to the portions of the upper and lower connection plates that face the lateral groove.
And a rubber strip is adhered to the inner ring of the annular ring of the spring steel sheet between the upper connecting member and the lower connecting member.
Furthermore, the transverse grooves arranged on the upper rigid support body and the lower rigid support body are three pairs.
For example, three, four, five, six or more pairs may be provided.
Preferably, the upper rigid support body is provided with a counter bore, the upper connecting plate is provided with a via hole, a screw penetrates through the counter bore and the via hole and then is in threaded connection with the beam body, and the screw is arranged on two sides of the rubber block and arranged at two ends of the upper connecting member and between the two adjacent transverse grooves.
Further, be provided with the counter bore on the rigidity supporter down, be provided with the via hole on the connecting plate down, the screw passes behind counter bore and the via hole with the bent cap spiro union, the screw is installed the both sides of block rubber and setting are in connect the both ends of component and between the adjacent cross slot down.
Furthermore, the upper connecting plate and the lower connecting plate are both steel plates.
Preferably, the rubber block is adhered between the upper rigid support body and the lower rigid support body in an adhering mode, and the rubber block and the rubber strip are adhered to the surface of the steel body by cold vulcanization glue.
Has the advantages that:
according to the earthquake-proof noise-reduction support for the bridge, disclosed by the invention, the first adopted rigid member is respectively connected with the upper beam body and the lower bent cap, the second adopted rigid member is provided with the elastic rubber block between the upper rigid member and the lower rigid member, the third adopted annular spring steel sheet penetrates through the upper rigid member and the lower rigid member, the rubber strips are respectively adhered to the upper side and the lower side in the transverse groove, and the rubber strips are also adhered to the left side and the right side of the annular ring of the spring steel sheet. By adopting the steel-rubber-steel structure and the integrated spring steel sheet annular ring penetrating through the upper steel member and the lower steel member, the shock absorption effect and the noise reduction effect can be realized. The upper connecting member and the lower connecting member are stably connected into a whole, the shock resistance can be achieved through the middle rubber block, and the anti-overturning capacity can be achieved through the annular ring of the spring steel sheet. The antidumping in this embodiment not only is realized through spring steel sheet annular ring, but also need cooperate the middle block rubber, through the deformation shrink of block rubber cooperation spring steel itself deformation and shrink can in time pull back the roof beam body when taking place the risk of toppling. The antidetonation in this embodiment also not only realizes through the block rubber, still need cooperate spring steel sheet annular ring, and spring steel sheet annular ring is through running through the steel construction from top to bottom, not only can bear the effect of drawing back when toppling about, can also realize absorbing effect taking place horizontal vibrations and vertical vibrations. And the rubber strip in this embodiment can also play the effect of avoiding taking place the rigidity and assault, can further realize the shock attenuation, can also improve the life of spring steel sheet annular ring.
Drawings
FIG. 1 is an isometric view of the abutment of example 1;
FIG. 2 is a front view of a stand in embodiment 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is an isometric view of the abutment of embodiment 2;
FIG. 6 is a front view of a stand in embodiment 2;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
FIG. 8 is an isometric view of the rubber block of example 2;
FIG. 9 is a left side view of the stand in embodiment 3;
FIG. 10 is a front sectional view of a holder according to embodiment 3;
FIG. 11 is a schematic view of the structure of a rubber block in example 3.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention as claimed in the claims.
Example 1: as shown in fig. 1 to 4, the present embodiment provides an anti-seismic and noise-reduction support for a bridge, which includes an upper connecting member connected to a beam body and a lower connecting member connected to a capping beam, wherein an elastic member is disposed between the upper connecting member and the lower connecting member. In this embodiment, the elastic member is a rubber block 1. The upper connecting member comprises an upper connecting plate 2 and an upper rigid support body 3, the lower connecting member comprises a lower connecting plate 4 and a lower rigid support body 5, the upper connecting plate is attached to the beam body, the lower connecting plate is attached to the cover beam, and the rubber block is arranged between the upper rigid support body and the lower rigid support body. In addition, the steel plate type connecting device also comprises an integral annular spring steel plate annular ring 6, wherein the spring steel plate annular ring continuously penetrates between the upper connecting plate and the upper rigid supporting body and between the lower connecting plate and the lower rigid supporting body, and the two sides of the spring steel plate annular ring between the upper connecting member and the lower connecting member form an arc shape.
In this embodiment, the upper surface of the upper rigid support and the lower surface of the lower rigid support are respectively provided with a lateral groove 7 having a cambered bottom surface, the lateral groove of the upper rigid support is opposite to the lateral groove of the lower rigid support, and the annular ring of spring steel plate is located in the lateral groove. The direction of the transverse groove is vertical to the direction of the travelling crane.
Further, a rubber strip 8 is attached to the bottom surface of the lateral groove, and the rubber strip 8 is also attached to the portions of the upper and lower connection plates that face the lateral groove. As another embodiment of the present embodiment, a rubber strip 8 is adhered to an inner ring of an annular ring of spring steel sheets positioned between the upper and lower connecting members.
In addition, the transverse grooves arranged on the upper rigid support body and the lower rigid support body are multiple pairs and are sequentially and uniformly arranged along the driving direction of the bridge, for example, three pairs, four pairs, five pairs, six pairs or more transverse grooves can be arranged. In this embodiment, the transverse grooves are provided with three pairs, rubber strips are adhered to the bottom surface of each pair of transverse grooves and the connecting plate opposite to the bottom surface, a penetrating annular ring of spring steel sheets is arranged at each pair of transverse grooves, and the rubber strips are adhered to the inner ring of each annular ring of spring steel sheets between the upper connecting member and the lower connecting member.
In addition, in this embodiment, a counter bore is formed in the upper rigid support, a through hole is formed in the upper connecting plate, and a screw 9 is screwed with the beam after penetrating through the counter bore and the through hole. Wherein the screws are installed at both sides of the rubber block and disposed between both ends of the upper connection member and the adjacent lateral grooves. The lower rigid support body is provided with a counter bore, the lower connecting plate is provided with a via hole, and a screw penetrates through the counter bore and the via hole and then is in threaded connection with the cover beam. Wherein the screws are installed at both sides of the rubber block and disposed between both ends of the lower connection member and the adjacent lateral grooves.
The spring steel sheet annular ring in the embodiment can be obtained by two modes, namely a mode of welding spring steel sheets at two ends or a mode of cutting a seamless spring steel pipe. The upper connecting plate and the lower connecting plate are both steel plates. The rubber block is adhered between the upper rigid support body and the lower rigid support body in an adhering mode. Wherein, the rubber block and the rubber strip are bonded with the surface of the steel body by adopting cold vulcanization glue.
Adopt the antidetonation noise reduction support for bridge of this embodiment, first adoption rigid member is connected with upper portion roof beam body and lower part bent cap respectively, and the second sets up between the rigid member of upper and lower has elastic rubber piece, and the third adopts annular spring steel sheet to pass upper and lower rigid member, and all pastes the rubber strip about the cross slot inslot and also pastes the rubber strip in the spring steel sheet annular ring left and right sides. By adopting the steel-rubber-steel structure arrangement and the integrated spring steel sheet annular ring penetrating through the upper steel member and the lower steel member, the upper connecting member and the lower connecting member can be stably connected into a whole, meanwhile, the shock resistance can be achieved through the middle rubber block, and the anti-overturning capacity can be achieved through the spring steel sheet annular ring. The antidumping in this embodiment not only is realized through spring steel sheet annular ring, but also need cooperate the middle block rubber, through the deformation shrink of block rubber cooperation spring steel itself deformation and shrink can in time pull back the roof beam body when taking place the risk of toppling. The antidetonation in this embodiment also not only realizes through the block rubber, still need cooperate spring steel sheet annular ring, and spring steel sheet annular ring is through running through the steel construction from top to bottom, not only can bear the effect of drawing back when toppling about, can also realize absorbing effect taking place horizontal vibrations and vertical vibrations. And the rubber strip in this embodiment can also play the effect of avoiding taking place the rigidity and assault, can further realize the shock attenuation, can also improve the life of spring steel sheet annular ring.
Example 2: as shown in fig. 1 to 4, the present embodiment provides an anti-seismic and noise-reduction support for a bridge, which includes an upper connecting member connected to a beam body and a lower connecting member connected to a capping beam, wherein an elastic member is disposed between the upper connecting member and the lower connecting member. In this embodiment, the elastic member is a rubber block 1. The upper connecting member comprises an upper connecting plate 2 and an upper rigid support body 3, the lower connecting member comprises a lower connecting plate 4 and a lower rigid support body 5, the upper connecting plate is attached to the beam body, the lower connecting plate is attached to the cover beam, and the rubber block is arranged between the upper rigid support body and the lower rigid support body. In addition, the steel plate type connecting device also comprises an integral annular spring steel plate annular ring 6, wherein the spring steel plate annular ring continuously penetrates between the upper connecting plate and the upper rigid supporting body and between the lower connecting plate and the lower rigid supporting body, and the two sides of the spring steel plate annular ring between the upper connecting member and the lower connecting member form an arc shape.
In this embodiment, the upper side of the rubber block has an upper arc-shaped protrusion 11 protruding upward, and the lower side of the rubber block has a lower arc-shaped protrusion 12 protruding downward, and the upper arc-shaped protrusion and the lower arc-shaped protrusion are symmetrically disposed. The left side of block rubber is provided with the left side arc recess 13 of indent right, the right side of block rubber is provided with the right side arc recess 14 of indent left, left side arc recess and right side arc recess symmetry set up. The upper arc-shaped convex block, the lower arc-shaped convex block, the left arc-shaped groove and the right arc-shaped groove penetrate through the rubber block along the driving direction. The central line of the upper arc-shaped bump and the central line of the lower arc-shaped bump and the central line of the left arc-shaped groove and the right arc-shaped groove intersect at the central axis of the rubber block. And, the upper end left and right sides of block rubber is provided with the last connecting strip 15 that outwards stretches out, the lower extreme left and right sides of block rubber is provided with the lower connecting strip that outwards stretches out, go up the connecting strip and adopt screw 10 to be connected with last rigid support body, lower connecting strip and lower rigid support body adopt screw connection.
As another embodiment in the present embodiment, a central steel column 16 along the traveling direction is provided at the center of the rubber strip. And the connecting line of the central points of the upper arc-shaped bump and the lower arc-shaped bump and the connecting line of the central points of the left arc-shaped groove and the right arc-shaped groove are intersected at the axis of the steel column.
In this embodiment, the upper surface of the upper rigid support and the lower surface of the lower rigid support are respectively provided with a lateral groove 7 having a cambered bottom surface, the lateral groove of the upper rigid support is opposite to the lateral groove of the lower rigid support, and the annular ring of spring steel plate is located in the lateral groove. The direction of the transverse groove is vertical to the direction of the travelling crane.
Further, a rubber strip 8 is attached to the bottom surface of the lateral groove, and the rubber strip 8 is also attached to the portions of the upper and lower connection plates that face the lateral groove. As another embodiment of the present embodiment, a rubber strip 8 is adhered to an inner ring of an annular ring of spring steel sheets positioned between the upper and lower connecting members.
In addition, the transverse grooves arranged on the upper rigid support body and the lower rigid support body are multiple pairs and are sequentially and uniformly arranged along the driving direction of the bridge, for example, three pairs, four pairs, five pairs, six pairs or more transverse grooves can be arranged. In this embodiment, the transverse grooves are provided with three pairs, rubber strips are adhered to the bottom surface of each pair of transverse grooves and the connecting plate opposite to the bottom surface, a penetrating annular ring of spring steel sheets is arranged at each pair of transverse grooves, and the rubber strips are adhered to the inner ring of each annular ring of spring steel sheets between the upper connecting member and the lower connecting member.
In addition, in this embodiment, a counter bore is formed in the upper rigid support, a through hole is formed in the upper connecting plate, and a screw 9 is screwed with the beam after penetrating through the counter bore and the through hole. Wherein the screws are installed at both sides of the rubber block and disposed between both ends of the upper connection member and the adjacent lateral grooves. The lower rigid support body is provided with a counter bore, the lower connecting plate is provided with a via hole, and a screw penetrates through the counter bore and the via hole and then is in threaded connection with the cover beam. Wherein the screws are installed at both sides of the rubber block and disposed between both ends of the lower connection member and the adjacent lateral grooves.
The spring steel sheet annular ring in the embodiment can be obtained by two modes, namely a mode of welding spring steel sheets at two ends or a mode of cutting a seamless spring steel pipe. The upper connecting plate and the lower connecting plate are both steel plates. The rubber block is adhered between the upper rigid support body and the lower rigid support body in an adhering mode. Wherein, the rubber block and the rubber strip are bonded with the surface of the steel body by adopting cold vulcanization glue.
Adopt the antidetonation noise reduction support for bridge of this embodiment, first adoption rigid member is connected with upper portion roof beam body and lower part bent cap respectively, and the second sets up between the rigid member from top to bottom and has elastic rubber block, and the third adopts annular spring steel sheet to pass rigid member from top to bottom, and all pastes the rubber strip from top to bottom and also pastes the rubber strip in the left and right sides on the annular of spring steel sheet circles, and the fourth will the rubber block sets up to have arc convex part both sides from top to bottom and is provided with the structure of arc indent. By adopting the steel-rubber-steel structure arrangement and the integrated spring steel sheet annular ring penetrating through the upper steel member and the lower steel member, the upper connecting member and the lower connecting member can be stably connected into a whole, meanwhile, the shock resistance can be achieved through the middle rubber block, and the anti-overturning capacity can be achieved through the spring steel sheet annular ring. For the antidumping, when the roof beam body has the trend of toppling towards one side (left side or right side), can prevent the toppling of bridge through the higher tensile properties of spring steel sheet annular ring and the indent structure of the both sides of block rubber, and even toppling is taking place, also can pull back the roof beam body in time through the deformation shrink cooperation spring steel of the indent of block rubber both sides deformation and shrink. To anti-seismic performance, also not only realize through the block rubber, still need cooperate the annular ring of spring steel sheet, the annular ring of spring steel sheet is through running through the steel construction from top to bottom, can be in the emergence horizontal vibrations and vertical vibrations and realize absorbing effect, simultaneously, the upper portion and the lower part arc convex part that the block rubber set up can transmit the lower part bent cap again after the upper portion vibrations shock attenuation that receives through lower part arc convex part to a plurality of directions dispersion for the vibrations that receive of lower part reduce greatly, simultaneously, can transmit the upper portion roof beam body again after the lower part vibrations shock attenuation that receives through upper portion arc convex part to a plurality of directions dispersion, the vibrations that reduce the roof beam body greatly have improved driving safety performance, and, at the in-process of vibrations transmission from top to bottom, can also further reduce vibrations through spring steel and rubber strip cooperation. For the transverse vibration formed in windy weather, the obvious effect of shock absorption can be realized through the arc-shaped convex part, the spring steel and the rubber strip. And the rubber strip in this embodiment can also play the effect of avoiding taking place the rigidity and assault, can further realize the shock attenuation, can also improve the life of spring steel sheet annular ring.
Can be in this embodiment the middle part of block rubber sets up the steel column that runs through, so, can promote the reliability of structure, more importantly can further promote antidumping performance and life moreover.
Example 3: as shown in fig. 9 to 11, the present embodiment provides an anti-seismic noise-reduction support for a bridge, which includes an upper connection member connected to a beam body and a lower connection member connected to a cap beam, and an elastic member is disposed between the upper connection member and the lower connection member. In this embodiment, the elastic member is a rubber block 1. The upper connecting member comprises an upper connecting plate 2 and an upper rigid support body 3, the lower connecting member comprises a lower connecting plate 4 and a lower rigid support body 5, the upper connecting plate is attached to the beam body, the lower connecting plate is attached to the cover beam, and the rubber block is arranged between the upper rigid support body and the lower rigid support body. In addition, still include integrative spring steel sheet semicircle ring, the spring steel sheet semicircle ring sets up respectively in upper portion and lower part, and the spring steel sheet semicircle ring A61 that sets up on upper portion runs through rubber piece and last connecting element, and the part that runs through last connecting element is circular-arc, and the spring steel sheet semicircle ring B62 that sets up in the lower part runs through rubber piece and lower connecting element, and the part that runs through lower connecting element is circular-arc. The upper spring steel sheet semicircular ring A and the lower spring steel sheet semicircular ring B are oppositely arranged, connecting pieces are respectively arranged at the parts of the upper spring steel sheet semicircular ring A, which are opposite to the lower spring steel sheet semicircular ring B, and a spring is arranged between the connecting piece of the upper spring steel sheet semicircular ring A and the connecting piece of the lower spring steel sheet semicircular ring B.
Specifically, the method comprises the following steps: and transverse grooves 7 with cambered surfaces are respectively arranged on the upper surface of the upper rigid support body and the lower surface of the lower rigid support body, and the directions of the transverse grooves are perpendicular to the driving direction. The transverse groove on the upper rigid support body is opposite to the transverse groove on the lower rigid support body in position, and the spring steel sheet semi-circular ring A and the spring steel sheet semi-circular ring B are respectively positioned in the transverse grooves of the upper rigid support body and the lower rigid support body. The rubber block is continuously and integrally arranged in a rectangular block shape, a cylindrical shape and a rectangular block shape along the driving direction, the cylindrical axis is consistent with the rectangular block shape, the diameter of the cylindrical shape is not more than half of the height of the rectangular block shape, and the front end and the rear end of the rubber block are required to be rectangular block shapes. The circular-arc part of the spring steel sheet semicircular ring A penetrates through a transverse groove in the upper rigid support body, a straight part penetrates through a cylindrical part in the rubber block and a concave small circular arc wrapping part is arranged in the middle of the cylindrical part, the circular-arc part of the spring steel sheet semicircular ring B penetrates through the transverse groove in the lower rigid support body, and the straight part penetrates through the cylindrical part in the rubber block and the concave small circular arc wrapping part in the middle of the cylindrical part. Connecting piece A63 has been welded respectively to the both sides of the straight portion of spring steel sheet semicircle ring A (also be located the cylindric both sides of block rubber), connecting piece A's the welding of inside and spring steel sheet semicircle ring A that leans on, connecting piece A's the part that leans on outside is provided with spring mounting groove connecting piece B64 has been welded respectively to the both sides of the straight portion of spring steel sheet semicircle ring B (also be located the cylindric both sides of block rubber), connecting piece B leans on inside and the welding of spring steel sheet semicircle ring B, connecting piece B's the part that leans on outside is provided with down spring mounting groove. The upper spring mounting groove and the lower spring mounting groove are opposite in upper and lower positions, a plurality of pairs of upper spring mounting grooves and lower spring mounting grooves are arranged in the direction perpendicular to the traveling direction, and springs 65 are arranged in the pair of upper spring mounting grooves and the pair of lower spring mounting grooves. In this embodiment, 3, 4 or 5 sets of spring mounting slots are provided on one set of opposing connector pieces a and B. And arc transition is arranged between the arc-shaped parts and the straight parts of the spring steel sheet semicircular ring A and the spring steel sheet semicircular ring B.
As another embodiment in this embodiment, the upper side of the rectangular portion of the rubber block has an upper arc-shaped protrusion 11 protruding upward, and the lower side of the rubber block has a lower arc-shaped protrusion 12 protruding downward, and the upper arc-shaped protrusion and the lower arc-shaped protrusion are symmetrically arranged. The connecting line of the central points of the upper arc-shaped convex block and the lower arc-shaped convex block passes through the central point of the cylindrical part and is perpendicular to the transverse diameter of the cylindrical part.
As another embodiment in this embodiment, the left and right sides of the upper end of the rectangular block portion of the rubber block are provided with upper connecting strips extending outward, the left and right sides of the lower section of the rectangular block portion of the rubber block are provided with lower connecting strips extending outward, the upper connecting strips are connected with the upper rigid supporting body by screws, and the lower connecting strips are connected with the lower rigid supporting body by screws 10.
In another embodiment of the present invention, a rubber strip is attached to a bottom surface of the lateral groove, and rubber strips are also attached to portions of the upper and lower connection plates that face the lateral groove. In addition, the transverse grooves arranged on the upper rigid support body and the lower rigid support body are multiple pairs and are sequentially and uniformly arranged along the driving direction of the bridge, for example, three pairs, four pairs, five pairs, six pairs or more transverse grooves can be arranged. In this embodiment, the transverse grooves are provided with four pairs, rubber strips are adhered to the bottom surface of each pair of transverse grooves and the connecting plate opposite to the transverse grooves, and a semicircular ring of a penetrating spring steel sheet is arranged at each transverse groove.
In addition, in this embodiment, a counter bore is formed in the upper rigid support, a through hole is formed in the upper connecting plate, and a screw 9 is screwed with the beam after penetrating through the counter bore and the through hole. The lower rigid support body is provided with a counter bore, the lower connecting plate is provided with a via hole, and a screw penetrates through the counter bore and the via hole and then is in threaded connection with the cover beam. In addition, the semi-circle ring of the spring steel sheet in the embodiment is obtained by bending, molding and cutting in advance. The upper connecting plate and the lower connecting plate are both steel plates. The rubber block is adhered between the upper rigid support body and the lower rigid support body in an adhering mode. Wherein, the rubber block and the rubber strip are bonded with the surface of the steel body by adopting cold vulcanization glue.
By adopting the anti-seismic noise-reduction support for the bridge of the embodiment, the first rigid member is respectively connected with the upper beam body and the lower cover beam. And an elastic rubber block is arranged between the second upper and lower rigid members. The third adopts the semicircular spring steel sheet to run through upper and lower rigid member respectively, and adopts the spring to connect upper and lower semicircular spring steel sheet as an organic whole, and upper portion and lower part spring steel sheet semicircle encircle the columnar part through the middle inner groovy centre gripping block rubber to further realize more reliable additional through the spring of both sides and hold, and all paste the rubber strip about in the cross slot. Fourthly, the rubber block is arranged into an integrated rectangular block-cylindrical-rectangular block mechanism, arc-shaped convex parts are respectively arranged above and below the rectangular block part, and the upper support body and the lower support body are provided with grooves matched with the arc-shaped convex parts. The bridge has the advantages that the effects of shock absorption, noise reduction and overturn resistance of the bridge can be realized through the structure. For shock absorption, the steel-rubber-steel structure arrangement and the spring steel sheet semi-circular rings which penetrate through the upper steel member and the lower steel member respectively are adopted, and the upper spring steel sheet semi-circular ring and the lower spring steel sheet semi-circular ring are connected again by adopting a spring; when upper portion or lower part vibrations take place, the vibrations of the roof beam body pass through rubber and transmit the bent cap, can realize absorbing effect through rubber, and further the arc convex part through rubber can be with vibrations looks direction dispersion all around, and simultaneously, through the rubber strip that sets up in the transverse groove, can transmit the rigidity vibrations to spring steel sheet semicircle ring A, realize the first order shock attenuation through bullet steel sheet semicircle ring A and rubber strip, the second level shock attenuation has been realized to the spring between spring steel sheet semicircle ring A and the spring steel sheet semicircle ring B, spring steel sheet semicircle ring B will shake and carry out the third pole shock attenuation once more through arc portion and rubber strip and transmit the bent cap at last. The vibrations transmitted to the capping beam after multi-level damping are already very small. Similarly, when the lower part vibrates, the vibration of the bent cap is also transmitted to the beam body through the first-stage vibration absorption (the spring steel sheet semicircular ring B and the rubber strip), the second-stage vibration absorption (the spring) and the third-stage vibration absorption (the spring steel sheet semicircular ring A and the rubber strip), and is dispersed through the arc-shaped structure. For the transverse vibration formed in windy weather, the obvious effect of shock absorption can be realized through the arc-shaped convex part, the spring steel and the rubber strip. And the rubber strip in this embodiment can also play the effect of avoiding taking place the rigidity and assault, can further realize the shock attenuation, can also improve the life of spring steel sheet annular ring. Greatly reduces the vibration of the beam body and improves the driving comfort and safety.
For the anti-overturning, when the beam body has a tendency to overturn towards one side (left side or right side), the overturning of the beam body can be prevented by the higher tensile property of the semi-circular ring A of the spring steel sheet. Even if overturning is occurring, the spring steel sheet semi-circle ring A is connected with the spring steel sheet semi-circle ring B through a spring, and the spring steel sheet semi-circle ring B can pull back the spring steel sheet semi-circle ring A through the elasticity of the spring when the spring steel sheet semi-circle ring A deforms, so that the overturning resistance effect is further realized.
As another embodiment of this embodiment, the rubber blocks are arranged in a continuous and integrated manner in the driving direction from large rectangular block shape to small rectangular block shape to large rectangular block shape, the axes of the large rectangular block shape and the small rectangular block shape are a line, the straight portions of the spring steel sheet semi-circular ring a and the spring steel sheet semi-circular ring B vertically wrap the small rectangular block shape, and steel columns are used to penetrate through the rubber blocks in the driving direction. This can further improve the anti-overturning performance of the structure.
Claims (8)
1. The utility model provides a bridge is with antidetonation noise reduction support which characterized in that: the bent-beam-type connecting structure comprises an upper connecting component connected with a beam body and a lower connecting component connected with a bent cap, wherein an elastic part is arranged between the upper connecting component and the lower connecting component; the elastic piece is a rubber block, the upper connecting member comprises an upper connecting plate and an upper rigid support body, the lower connecting member comprises a lower connecting plate and a lower rigid support body, the upper connecting plate is attached to the beam body, the lower connecting plate is attached to the cover beam, and the rubber block is arranged between the upper rigid support body and the lower rigid support body; the integrated annular spring steel sheet ring continuously penetrates between the upper connecting plate and the upper rigid supporting body and between the lower connecting plate and the lower rigid supporting body, and arc shapes are formed on two sides between the upper connecting member and the lower connecting member; transverse grooves with cambered surfaces on the bottom surfaces are respectively arranged on the upper surface of the upper rigid supporting body and the lower surface of the lower rigid supporting body, the transverse grooves on the upper rigid supporting body are opposite to the transverse grooves on the lower rigid supporting body, and the annular ring of the spring steel sheet is positioned in the transverse grooves; the transverse groove direction is perpendicular to the driving direction and a plurality of transverse grooves are arranged along the driving direction.
2. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: rubber strips are adhered to the bottom surfaces of the transverse grooves, and the rubber strips are adhered to the parts, opposite to the transverse grooves, of the upper connecting plate and the lower connecting plate.
3. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: and a rubber strip is adhered to the inner ring of the annular ring of the spring steel sheet between the upper connecting component and the lower connecting component.
4. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: the upper rigid support body and the lower rigid support body are provided with three pairs of transverse grooves.
5. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: the upper rigid support body is provided with a counter bore, the upper connecting plate is provided with a via hole, a screw penetrates through the counter bore and the via hole and then is in threaded connection with the beam body, and the screw is installed on two sides of the rubber block and arranged between two ends of the upper connecting member and the adjacent transverse grooves.
6. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: be provided with the counter sink down on the rigidity supporter, be provided with the via hole down on the connecting plate, the screw passes behind counter sink and the via hole with the bent cap spiro union, the screw is installed the both sides of block rubber and setting are in down between the both ends of connecting elements and the adjacent cross slot.
7. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: the upper connecting plate and the lower connecting plate are both steel plates.
8. An earthquake-resistant noise-reduction support for bridges as claimed in claim 1, wherein: the rubber block is pasted between the upper rigid support body and the lower rigid support body in a pasting mode, and the rubber block and the rubber strip are bonded with the surface of the steel body through cold vulcanization glue.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110098293.1A CN112962433A (en) | 2021-01-25 | 2021-01-25 | Anti-seismic noise-reducing support for bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110098293.1A CN112962433A (en) | 2021-01-25 | 2021-01-25 | Anti-seismic noise-reducing support for bridge |
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| CN202110098293.1A Withdrawn CN112962433A (en) | 2021-01-25 | 2021-01-25 | Anti-seismic noise-reducing support for bridge |
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