CN109610296B - Bridge structure - Google Patents
Bridge structure Download PDFInfo
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- CN109610296B CN109610296B CN201811414016.1A CN201811414016A CN109610296B CN 109610296 B CN109610296 B CN 109610296B CN 201811414016 A CN201811414016 A CN 201811414016A CN 109610296 B CN109610296 B CN 109610296B
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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
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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
- E01D1/00—Bridges in general
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a bridge structure, which is characterized in that a third section of central rotating shaft is parallel to a first section of central rotating shaft, the third section of central rotating shaft and the first section of central rotating shaft are offset by a certain distance, and a first middle reciprocating friction unit is arranged on the third section of central rotating shaft; the first middle reciprocating friction unit includes: a first middle drive plate, a first middle platform plate; the first middle driving plate is provided with a strip-shaped groove, two end portions of the first middle driving plate are respectively provided with a first middle platform plate, and the third section of central rotating shaft is inserted into the strip-shaped groove of the first middle driving plate. The invention aims to provide a bridge structure to solve the problem of bridge damping and energy consumption.
Description
Technical Field
The invention relates to the field of civil engineering anti-seismic design, in particular to a damper and a bridge structure using the damper.
Background
The anti-seismic energy consumption of the bridge is an important ring in the design of roads and bridges, for example, CN107035202A discloses a gear transmission friction damper and an assembly construction process, which comprises a lower connecting plate, a lower friction plate, a main plate, an upper friction plate, a rear angle steel, a front angle steel, a lower rack, a triple gear, a double connecting rod, an upper rack, a U-shaped connecting piece, a high-strength bolt, a limit bolt, a gear rotating shaft and a positioning pin. The main plate is located between lower connecting plate and the preceding angle steel of separate arrangement, the relief angle steel, lower friction disc is pasted in the upper surface of lower connecting plate, go up the friction disc and paste in the lower surface of back angle steel and preceding angle steel, the triple gear, go up the rack, lower rack and double-link are located in the middle of back angle steel and the anterior angle steel, lower rack is pasted in the main plate recess, go up the rack and paste in double-link recess, the U-shaped connecting piece welds in double-link tip. The displacement amplification type friction damper amplifies the sliding friction displacement of the damper by using a gear transmission theory, and has strong energy consumption capability. However, in the case that the space between the bridge deck and the cap beam of the bridge is very small, the existing damper cannot be installed in the space, and how to design an applicable damper structure is a problem to be solved urgently.
Disclosure of Invention
The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a damper structure that can achieve an energy-consuming effect even when a structure space is narrow.
The invention aims to provide a bridge structure aiming at the defects of the prior art so as to solve the problem of transverse seismic resistance of a bridge.
A damper, comprising: the gear rack, the gear, the central rotating shaft and the bearing seat are arranged on the bearing seat;
the gear is meshed with the rack; the central rotating shaft is arranged on the bearing seat;
the rack is arranged on a first structure, and the bearing seat is fixed on a second structure;
the central rotating shaft is divided into four sections: the first section of central rotating shaft, the third section of central rotating shaft and the second section of central rotating shaft;
the gear is arranged on the surface of the first section of the central rotating shaft; the first section of central rotating shaft is arranged between the first structure and the second structure and extends out of the first structure and the second structure;
the third section of central rotating shaft and the second section of central rotating shaft are arranged outside the first structure and the second structure;
the rotating shafts of the first section of central rotating shaft and the second section of central rotating shaft are positioned on the same straight line;
a third section of central rotating shaft is arranged between the first section of central rotating shaft and the second section of central rotating shaft;
the third section of central rotating shaft is parallel to the first section of central rotating shaft, the third section of central rotating shaft and the first section of central rotating shaft are offset by a certain distance, and a first middle reciprocating friction unit is arranged on the third section of central rotating shaft;
the first middle reciprocating friction unit includes: a first middle drive plate, a first middle platform plate;
the first middle driving plate is provided with a strip-shaped groove, two end parts of the first middle driving plate are respectively provided with a first middle platform plate, and the third section of central rotating shaft is inserted into the strip-shaped groove of the first middle driving plate;
further comprising: 2 parallel lateral plates; a vertical clamping groove is formed in one side, opposite to each lateral plate 4, of each lateral plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of each first middle driving plate;
the first middle platform plate is parallel to the lateral plate, and friction plates perpendicular to the surface are arranged on the opposite surfaces of the first middle platform plate and the lateral plate;
the friction plates of the first intermediate deck plate contact the friction plates of the side plates.
Further, the friction plate of the first middle platform plate is connected with the friction plate of the lateral plate through bolts, strip-shaped bolt holes are formed in the friction plate of the first middle platform plate and the friction plate of the lateral plate, and the strip-shaped direction of each strip-shaped bolt hole is parallel to the direction of the strip-shaped groove of the first middle driving plate.
Further, first middle part drive plate, first middle part landing slab integrated into one piece, the first middle part landing slab of two tip of first middle part drive plate constitutes "worker" shape with first middle part drive plate jointly.
A rack is arranged below a bridge deck, and a bearing seat is fixed on the upper surface of a cover beam.
Further, at least one of the lateral plates is fixed to the capping beam.
Further, the lateral plates are vertically or horizontally arranged.
A damper, comprising: the device comprises a rack, a gear, a central rotating shaft, a bearing seat and a reciprocating friction energy consumption unit;
the gear is meshed with the rack and is arranged on the surface of the central rotating shaft; the central rotating shaft is arranged on the bearing seat;
wherein, the rack is arranged below the bridge deck; the bearing block is fixed on the upper surface of the cover beam 5-2;
the reciprocating friction energy consumption unit is positioned in the outer area of the cover beam;
a reciprocating friction dissipative unit, comprising: the first radial rod, the first driving plate and the platform plate;
the first radial rod is perpendicular to the central rotating shaft, the first radial rod and the first driving rod are in a perpendicular relation, the first driving rod is arranged at the end part, far away from the central rotating shaft, of the first radial rod, the first driving plate is provided with a strip-shaped groove, the first driving plate is parallel to the platform plate along the axial extension direction of the central rotating shaft, and the first driving plate is connected with the platform plate through a connecting plate, so that a gap is formed between the first driving plate and the platform plate; the first driving rod is inserted into the strip-shaped groove of the first driving plate;
the first driving plate and the platform plate are integrally formed;
further comprising: the end plate is connected with the end parts of the 2 vertical side plates, the side plates are vertically fixed on the cover beam, a vertical clamping groove is formed in one side, opposite to each side plate, of each side plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first driving plate;
the platform plate is parallel to the end plate, a first friction plate is vertically arranged on the surface of the platform plate facing the end plate, a second friction plate is vertically arranged on the surface of the end plate facing the platform plate, the first friction plate and the second friction plate are tightened by high-strength bolts, and bolt hole grooves parallel to the direction of the clamping grooves are formed in the second friction plate;
the first friction plate and the second friction plate are in contact with each other.
Furthermore, a plurality of first friction plates are arranged on the platform plate, a plurality of second friction plates are arranged on the end plate, and the first friction plates and the second friction plates are arranged in a mutual contact mode.
Further, the first friction plate and the second friction plate are made of metal plates.
Further, the side plates and the end plates together form a U-shaped plate.
Further, the lateral plates and the end plates together constitute a U-shaped plate.
Further, the side direction board is vertical setting, and the bar groove of first drive plate sets up to the level setting.
Further, the lateral plates are horizontally arranged, and the strip-shaped grooves of the first driving plate are vertically arranged.
Further, the first driving plate and the platform plate are integrally formed.
The installation method of the bridge structure with the damping and energy consumption functions comprises the following installation steps:
firstly, mounting a rack, a central rotating shaft and a bearing seat, wherein a gear and a radial rod are mounted on the central rotating shaft in advance; the lateral plates and the end plates are prefabricated into a whole;
secondly, 2 opposite lateral plates are arranged on the cover beam;
thirdly, the first driving plate and the platform plate are connected together in advance, then the first driving plate is inserted into the clamping grooves of the lateral plates, and correspondingly, the first friction plate and the second friction plate are inserted into each other;
then the driving rod is arranged at the end part of the radial rod and penetrates through the corresponding strip-shaped groove;
specifically, the end part of the radial rod is provided with a threaded hole, the outer surface of the driving rod is provided with threads, and the driving rod is circular; during installation, the driving rod penetrates through the threaded hole of the radial rod until penetrating through the strip-shaped groove of the driving plate.
The invention has the advantages that:
(1) the energy dissipation and shock absorption device has the advantages that the gear-rack, the central rotating shaft, the radial rod, the driving plate, the platform plate, the end plate, the first friction plate and the second friction plate are utilized to realize energy dissipation and shock absorption of the bridge, and the reciprocating motion of the upper structure and the lower structure of the bridge is designed to be the mutual reciprocating motion between the first friction plate and the first friction plate.
(2) Lateral plates in this application adopt the level to, and it makes things convenient for the weight support of drive plate, friction plate.
(3) The application provides a scheme of a center rotating shaft offset design, a driving plate is arranged on a third offset section of the center rotating shaft, and the reciprocating motion design of the upper structure and the lower structure of the bridge is converted into the mutual reciprocating motion between the friction plates of the first middle platform plate and the second middle platform plate and the friction plates of the lateral plates (corresponding to the technical scheme of the third embodiment).
(4) The application provides a scheme of symmetrical offset design (phase difference is 180 degrees) of the central rotating shaft, the contact surface of the third friction plate and the fourth friction plate corresponds to the fifth section of the central rotating shaft, the width of the friction contact surface is ensured, and the reciprocating motion design of the upper structure and the lower structure of the bridge is converted into the mutual reciprocating motion between the third friction plate and the fourth friction plate (corresponding to the technical scheme of the fourth embodiment).
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Fig. 1 is a cross-sectional view of a rack and pinion of the first embodiment.
Fig. 2 is a structural design diagram of the damping and energy dissipating mechanism according to the first embodiment.
FIG. 3 is a top view of the canopy beam, side plate, and reciprocating friction dissipating unit of the first embodiment.
Fig. 4 is a schematic connection diagram of the central rotating shaft and the first radial rod, the first driving rod and the first driving plate.
FIG. 5 is a top view of the canopy beam, the side plate, and the reciprocating friction energy dissipating unit according to the first embodiment.
Fig. 6 is a connection diagram of horizontal lateral plates of the second embodiment.
Fig. 7 is a structural elevation view of a damping and dissipating mechanism according to a third embodiment.
Fig. 8 is a top view of the structure of the third embodiment of the damping and dissipating mechanism.
Fig. 9 is a structural elevation view of a damping and dissipating mechanism according to a fourth embodiment.
Fig. 10 is a top view of the damper dissipative mechanism according to the fourth embodiment.
Detailed Description
In one embodiment, a bridge structure with shock absorption and energy consumption comprises: the device comprises a rack 1-1, a gear 1-2, a central rotating shaft 3, a bearing seat 1-3 and a reciprocating friction energy consumption unit 2;
the gear 1-2 is meshed with the rack 1-1, and the gear 1-2 is arranged on the surface of the central rotating shaft 3; the number of the bearing blocks 1-3 is multiple, the central rotating shaft is arranged on the bearing blocks 1-3, and the axial displacement of the central rotating shaft is limited by the bearing blocks 1-3;
wherein, the rack 1-1 is arranged on the lower surface of the upper structure, in particular, below the bridge deck 5-1; the bearing seat 1-3 is fixed on the lower structure, specifically, is arranged on the upper surface of the cover beam 5-2;
the reciprocating friction energy consumption unit 2 is positioned in the outer area of the cover beam;
the reciprocating friction energy consumption unit 2 comprises: a first radial rod 2-1-1, a first driving rod 2-1-2, a first driving plate 2-1-3 and a platform plate 2-1-4;
the first radial rod 2-1-1 is perpendicular to the central rotating shaft, the first radial rod 2-1-1 is perpendicular to the first driving rod 2-1-2, the first driving rod 2-1-2 is arranged at the end part, far away from the central rotating shaft, of the first radial rod 2-1-1, the first driving plate 2-1-3 is provided with a strip-shaped groove 2-1-3-1, the first driving plate 2-1-3 is parallel to the platform plate 2-1-4 in the direction of axial extension of the central rotating shaft, and the first driving plate 2-1-3 is connected with the platform plate 2-1-4 through a connecting plate, so that a gap is formed between the first driving plate 2-1-3 and the platform plate 2-1-4; the first driving rod 2-1-2 is inserted into the strip-shaped groove of the first driving plate 2-1-3;
the first driving plate 2-1-3 and the platform plate 2-1-4 are integrally formed;
further comprising: the driving device comprises two vertical side plates 4 arranged in parallel and an end plate 6 connected with the end parts of the 2 vertical side plates 4, wherein the side plates 4 are vertically fixed on the front side or the rear side of a cover beam 5-2, a vertical clamping groove is formed in one side, opposite to each side plate 4, of each side plate 4, and clamping strips corresponding to the clamping grooves are arranged on two sides of a first driving plate 2-1-3;
the platform plates 2-1-4 are parallel to the end plate 6, a first friction plate 7-1 is vertically arranged on the surface of the platform plate facing the end plate, a second friction plate 7-2 is vertically arranged on the surface of the end plate facing the platform plate, the first friction plate and the second friction plate are tightened by high-strength bolts, and bolt hole grooves parallel to the direction of the clamping grooves are formed in the second friction plate.
The first friction plate and the second friction plate are made of metal plates, and particularly, steel plates are used.
The side panels 4 and end panels 6 together form a U-shaped panel.
And the strip-shaped grooves of the first driving plates 2-1-3 are arranged horizontally, namely, the strip-shaped grooves are vertical to the surface of the lateral plate 4 and the direction of the clamping grooves on the lateral plate.
Through the clamping groove and the clamping block, the first driving plate 2-1-3 can reciprocate along the vertical direction of the clamping groove, and then the platform plate 2-1-4 is driven to reciprocate up and down, so that the first friction plate and the second friction plate are subjected to friction energy consumption.
In the first embodiment, the reciprocating friction energy dissipation unit 2 is arranged on the front side and/or the rear side of the cover plate, and is particularly suitable for seismic energy dissipation in the transverse direction of a bridge.
The second embodiment is different from the first embodiment in that the method further comprises the following steps: the cover beam comprises two parallel horizontal side plates 4, wherein the side plates 4 are fixed on the front side or the rear side of the cover beam, a horizontal clamping groove is formed in one side, opposite to each side plate 4, of each side plate 4, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first driving plate 2-1-3 and the second driving plate 2-2-3;
through the clamping groove and the clamping block, the first driving plate 2-1-3 can reciprocate along the horizontal direction of the clamping groove, so that the platform plate 2-1-4 is driven to reciprocate left and right, and friction energy consumption is realized between the first driving plate and the end plate 6.
Matched with, the strip-shaped groove in the first driving plate 2-1-3 is arranged to be vertical, namely vertical to the surface where the lateral plate is located and the direction of the clamping groove on the lateral plate.
The direction of the side plates can be other directions, however, from the installation mode, the horizontal direction and the vertical direction are two easy installation modes, and meanwhile, the direction of the strip-shaped groove needs to be matched with the direction of the side plates and the direction of the card contact (namely, the vertical relation is kept).
However, the lateral plates are horizontally oriented, which has the advantage that the horizontal lateral plates can bear the weight of the driving plates, while the vertical lateral plates essentially bear the weight of the driving rods and also need temporary support when being installed, or are horizontally supported below the vertical lateral plates; therefore, the lateral plates have greater advantages than other orientations, with a horizontal solution; however, the disadvantage is that when the lateral plates are horizontal plates, the upper lateral plate cannot be directly connected with the bent cap, and at the moment, the upper lateral plate and the lower lateral plate can be supported and fixed by arranging a vertical support.
The corresponding installation method comprises the following installation steps:
firstly, mounting a rack, a central rotating shaft and a bearing seat, wherein a gear and a radial rod are mounted on the central rotating shaft in advance; the lateral plates and the end plates are prefabricated into a whole;
secondly, 2 opposite lateral plates are arranged on the cover beam;
thirdly, the first driving plate and the platform plate are connected together in advance, then the first driving plate is inserted into the clamping grooves of the lateral plates, and correspondingly, the first friction plate and the second friction plate are inserted into each other;
then the driving rod is arranged at the end part of the radial rod and penetrates through the corresponding strip-shaped groove;
specifically, the end part of the radial rod is provided with a threaded hole, the outer surface of the driving rod is provided with threads, and the driving rod is circular; during installation, the driving rod penetrates through the threaded hole of the radial rod until penetrating through the strip-shaped groove of the driving plate.
In the third embodiment, as shown in fig. 7-8, the central rotating shaft can be divided into four sections from the gear to the end plate: a first section of central rotating shaft 3-1, a third section of central rotating shaft 3-3 and a second section of central rotating shaft 3-2;
the rotating shafts of the first section of central rotating shaft 3-1 and the second section of central rotating shaft 3-2 are in the same straight line; the reciprocating unit 2 is arranged on a central rotating shaft 3-2 of the second section;
a third section of central rotating shaft 3-3 is arranged between the first section of central rotating shaft 3-1 and the second section of central rotating shaft 3-2;
the third section of central rotating shaft 3-3 is parallel to the first section of central rotating shaft 3-1, the third section of central rotating shaft 3-3 is offset from the first section of central rotating shaft 3-1 by a certain distance, the end part of the first section of central rotating shaft is vertically bent outwards, and is vertically bent after extending to the end part of the third section of central rotating shaft, namely the connection shape formed by the first section of central rotating shaft and the third section of central rotating shaft is that
A first middle reciprocating friction unit is arranged on the third section of central rotating shaft 3-3, and comprises: a first middle drive plate 8-1, a first middle deck plate 8-2;
the first middle driving plate 8-1 is provided with a strip-shaped groove, two end parts of the first middle driving plate 8-1 are respectively provided with a first middle platform plate 8-2, and the third section of central rotating shaft 3-3 is inserted into the strip-shaped groove of the first middle driving plate 8-1;
the first middle driving plate 8-1 and the first middle platform plate 8-2 are integrally formed, and the first middle platform plate 8-2 at the two end parts of the first middle driving plate 8-1 and the first middle driving plate 8-1 form an I shape together;
a vertical clamping groove is formed in one side, opposite to each lateral plate 4, of each lateral plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the first middle driving plate 8-1;
the first middle platform plate 8-2 is parallel to the lateral plates, and friction plates vertical to the surfaces are arranged on the opposite surfaces of the first middle platform plate and the lateral plates;
the friction plate of the first middle platform plate 8-2 is contacted with the friction plate of the lateral plate; further, the friction plate of the first middle platform plate 8-2 is connected with the friction plate of the lateral plate through bolts, strip-shaped bolt holes are formed in the friction plate of the first middle platform plate 8-2 and the friction plate of the lateral plate, and the strip-shaped direction of the strip-shaped bolt holes is parallel to the strip-shaped groove of the first middle driving plate.
The first embodiment has a disadvantage in that only one friction plate can be provided because the driving plate moves up and down while the driving rod rotates the driving plate, and therefore, the central rotation shaft must be disconnected. Therefore, the number of drive rods can be set to substantially 1, which limits the energy consumption capability thereof.
The third embodiment has the advantages that the problems are solved, the third section central rotating shafts 3-3 and the first middle reciprocating friction units can be arranged on the central rotating shaft, and the third section central rotating shafts and the first middle reciprocating friction units are application values of the third embodiment.
Example four: and (5) continuing to improve on the basis of the third embodiment.
The central rotating shaft further comprises: a fourth section of central rotating shaft 3-4, a fifth section of central rotating shaft 3-5, and the fifth section of central rotating shaft 3-5 is collinear with the first section of central rotating shaft 3-1;
the central rotating shaft sequentially comprises from the gear to the end plate: a first section of central rotating shaft 3-1, a third section of central rotating shaft 3-3, a fifth section of central rotating shaft 3-5, a fourth section of central rotating shaft 3-4 and a second section of central rotating shaft 3-2;
the fourth section of central rotating shaft 3-4 is parallel to the fifth section of central rotating shaft 3-5, the fourth section of central rotating shaft 3-4 is offset from the fifth section of central rotating shaft 3-5 by a certain distance, and the fourth section of central rotating shaft 3-4 and the third section of central rotating shaft 3-3 rotate 180 degrees relative to the fifth section of central rotating shaft 3-5;
a second middle reciprocating friction unit is arranged on the fourth section of central rotating shaft 3-4, and comprises: a second middle drive plate, a second middle platform plate;
the second middle driving plate is provided with a strip-shaped groove, two end parts of the second middle driving plate are respectively provided with a second middle platform plate, and the fourth section of the central rotating shaft is inserted into the strip-shaped groove of the second middle driving plate;
the second middle driving plate and the second middle platform plate are integrally formed;
a vertical clamping groove is formed in one surface, opposite to each side plate 4, of each side plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of the second middle driving plate;
the second middle platform plate is parallel to the lateral plate, and friction plates perpendicular to the surface are arranged on the opposite surfaces of the second middle platform plate and the lateral plate;
the friction plate of the second middle platform plate is contacted with the friction plate of the lateral plate; further, the friction plate of the second middle platform plate is connected with the friction plate of the lateral plate through bolts, strip-shaped bolt holes are formed in the friction plate of the second middle platform plate and the friction plate of the lateral plate, and the strip-shaped direction of each strip-shaped bolt hole is parallel to the direction of the strip-shaped groove of the second middle driving plate.
A third friction plate 8-3 and a fourth friction plate 8-4 are respectively arranged on the opposite surfaces of the first middle platform plate and the second middle platform plate;
the third friction plate 8-3 and the fourth friction plate 8-4 are both vertical to the lateral plates;
the third friction plate 8-3 and the fourth friction plate 8-4 are connected through bolts, strip-shaped bolt holes are formed in the third friction plate 8-3 or the fourth friction plate 8-4, and the strip-shaped directions of the strip-shaped bolt holes are parallel to the direction of the strip-shaped groove of the second middle driving plate;
the direction of the clamping strip of the second middle driving plate, the direction of the clamping strip of the first middle driving plate and the direction of the clamping strip of the first driving plate are parallel.
When the rack driving gear rotates, the third section of central rotating shaft 3-3 and the fourth section of central rotating shaft 3-4 drive the first middle driving plate and the second middle driving plate to reciprocate, so that the third friction plate 8-3 and the fourth friction plate 8-4 are driven to reciprocate; specifically, when the lateral plate 4 is vertically arranged, the clamping strips of the first middle driving plate and the second middle driving plate are also vertically arranged, and the third friction plate 8-3 and the fourth friction plate 8-4 reciprocate up and down (reciprocate along the direction of the clamping groove);
when the lateral plate 4 is horizontally arranged, the clamping strips of the first middle driving plate and the second middle driving plate are also horizontally arranged, and the third friction plate 8-3 and the fourth friction plate 8-4 reciprocate left and right.
Particularly, the extension surfaces of the third friction plate and the fourth friction plate correspond to the fifth section of the central rotating shaft 3-5; the design is that the length of the first middle platform plate and the second middle platform plate is required, and two sides of the fifth section of central rotating shaft 3-5 are vacant spaces which can provide enough contact surfaces for the third friction plate and the fourth friction plate; if the third friction plate corresponds to the fifth segment of the central rotation shaft, the width thereof is necessarily limited to a large extent.
For the friction damper, the friction distance is a key factor influencing energy consumption, and relative to the first friction plate-end plate (stationary) of the first embodiment, the third friction plate and the fourth friction plate of the fourth embodiment (the phase difference between the third section central rotating shaft 3-3 and the fourth section central rotating shaft 3-4 is 180 °) generate relative motion; under the same condition, the offset distances from the third section of central rotating shaft 3-3 and the fourth section of central rotating shaft 3-4 to the first section of central rotating shaft are the same, and the offset distances from the first driving rod to the second section of central rotating shaft are the same, and the relative distance between the third friction plate and the fourth friction plate is 2 times of that between the first friction plate and the end plate. Therefore, the energy consumption effect is obviously improved.
For the third and fourth embodiments, the installation method is different from the above, each driving plate is firstly sleeved on the central rotating shaft, then the lateral plates are installed, and the direction of the driving plates is adjusted according to the clamping groove-clamping strip when the lateral plates are installed.
The design schemes of the first embodiment, the third embodiment and the fourth embodiment of the application are relatively independent.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (5)
1. A bridge construction, its bridge construction for using the attenuator which characterized in that:
the damper comprises: the gear rack, the gear, the central rotating shaft and the bearing seat are arranged on the bearing seat;
the gear is meshed with the rack; the central rotating shaft is arranged on the bearing seat;
the rack is arranged on a first structure, and the bearing seat is fixed on a second structure;
the central rotating shaft is divided into four sections: the first section of central rotating shaft, the third section of central rotating shaft and the second section of central rotating shaft;
the gear is arranged on the surface of the first section of the central rotating shaft; the first section of central rotating shaft is arranged between the first structure and the second structure and extends out of the first structure and the second structure;
the third section of central rotating shaft and the second section of central rotating shaft are arranged outside the first structure and the second structure;
the rotating shafts of the first section of central rotating shaft and the second section of central rotating shaft are positioned on the same straight line;
a third section of central rotating shaft is arranged between the first section of central rotating shaft and the second section of central rotating shaft;
the third section of central rotating shaft is parallel to the first section of central rotating shaft, the third section of central rotating shaft and the first section of central rotating shaft are offset by a certain distance, and a first middle reciprocating friction unit is arranged on the third section of central rotating shaft;
the first middle reciprocating friction unit includes: a first middle drive plate, a first middle platform plate;
the first middle driving plate is provided with a strip-shaped groove, two end parts of the first middle driving plate are respectively provided with a first middle platform plate, and the third section of central rotating shaft is inserted into the strip-shaped groove of the first middle driving plate;
further comprising: 2 parallel lateral plates; a vertical clamping groove is formed in one side, opposite to each lateral plate (4), of each lateral plate, and clamping strips corresponding to the clamping grooves are arranged on two sides of each first middle driving plate;
the first middle platform plate is parallel to the lateral plate, and friction plates perpendicular to the surface are arranged on the opposite surfaces of the first middle platform plate and the lateral plate;
the friction plate of the first middle platform plate is contacted with the friction plate of the lateral plate;
the rack is arranged below the bridge deck, and the bearing seat is fixed on the upper surface of the cover beam.
2. A bridge construction according to claim 1, wherein at least one of the lateral plates is secured to the capping beam.
3. The bridge construction of claim 1, wherein the lateral plates are vertically or horizontally disposed.
4. The bridge structure according to claim 1, wherein the friction plates of the first middle platform plate and the friction plates of the side plates are connected by bolts, and strip bolt holes are formed in the friction plates of the first middle platform plate and the friction plates of the side plates, and the strip direction of the strip bolt holes is parallel to the strip groove direction of the first middle driving plate.
5. The bridge structure of claim 1, wherein the first middle drive plate and the first middle platform plate are integrally formed, and the first middle platform plate and the first middle drive plate at both ends of the first middle drive plate form an "I" shape together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811414016.1A CN109610296B (en) | 2018-11-26 | 2018-11-26 | Bridge structure |
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| CN201811414016.1A CN109610296B (en) | 2018-11-26 | 2018-11-26 | Bridge structure |
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| CN109610296A CN109610296A (en) | 2019-04-12 |
| CN109610296B true CN109610296B (en) | 2021-08-27 |
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| FR2749900B1 (en) * | 1996-06-18 | 2001-11-30 | Jarret | METHOD AND DEVICE FOR DAMPING OR TAKING UP SUDDAN STRUCTURES APPLIED TO A STRUCTURE FOR EXAMPLE OF CIVIL ENGINEERING |
| CN102080421A (en) * | 2011-01-30 | 2011-06-01 | 东南大学 | Damping generation method through torsion type lead extrusion and damper thereof |
| CN104088374B (en) * | 2014-06-12 | 2016-03-23 | 清华大学 | Metal composite frcition damper |
| CN106758795B (en) * | 2017-01-19 | 2019-03-22 | 重庆科技学院 | Shock-absorbing bridge support |
| CN207846196U (en) * | 2018-01-29 | 2018-09-11 | 中国路桥工程有限责任公司 | Compound angle damper displacement |
-
2018
- 2018-11-26 CN CN201811414016.1A patent/CN109610296B/en active Active
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| CN109610296A (en) | 2019-04-12 |
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