A buffer block and damping combined energy-dissipating bridge seismic structure

Abstract

The present invention relates to the technical field of bridge earthquake resistance, and in particular to a buffer block and damping combined energy-absorbing bridge earthquake resistance structure, comprising a steel corbel assembly, a top plate, a web with a rubber earthquake-resistant layer on the inner side, a cubic slider, a damping device, and a connecting device. The steel corbel assembly is fixed above the side wall of the pier, the top plate is fixed to the bottom of the main beam, one section of the two webs is connected to one end of the bottom of the top plate through an angle steel, and the other end is connected to the top of the steel corbel; the cubic slider, the rear one is equipped with a damper on the front side, the two sliders are connected to the connecting device through cylindrical blocks protruding on the left and right sides, and the connecting device has wavy stripes at the contact point with the cylindrical blocks to increase friction. The present invention can limit the excessive displacement of the beam body and the pier along the bridge direction, avoid the phenomenon of falling beams, absorb energy, thereby reducing the damage to the bridge caused by the earthquake, and absorbing the energy of the earthquake.

Description

Technical Field

[0001] The invention relates to the technical field of bridge earthquake resistance, and in particular to an energy-absorbing bridge earthquake resistance structure combining a buffer block and damping. Technical Background

[0002] As my country's economy grows, the country is investing more and more in projects that are beneficial to social development and people's livelihood, and infrastructure work is developing rapidly. Road and bridge traffic construction is extremely important to the development of a region. Bridges are also hubs in traffic routes. Once a bridge accident occurs, a series of economic and social butterfly effects will occur. Therefore, the safety performance and stability of bridges such as earthquake resistance are worth discussing.

[0003] There are more than one million bridges under construction and already built in my country. my country's terrain is ever-changing, and there are bridges in various terrains and regions, and some areas are prone to earthquakes. Bridges in these areas have many safety hazards. Once an earthquake comes, it is easy for bridges to collapse, which will bring us great economic losses and even threaten people's lives. At the same time, it will block traffic and make rescue and other difficulties.

[0004] The main forms of damage to bridge structures during earthquakes include: falling off of upper beams, damage to supports, cracking of pile foundation piers, and collision damage to beams.

[0005] Therefore, it is necessary to design and develop a new type of bridge seismic baffle structure, which can not only play a role in seismic energy absorption during earthquakes, but also limit the displacement of the upper beam of the bridge along the bridge direction. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the existing technology and provide an energy-absorbing bridge seismic resistant structure combining a block and a damper, which can limit the excessive displacement of the beam and the pier along the bridge direction, avoid the phenomenon of falling beams, and absorb energy through friction, spring compression, rubber deformation buffering, etc., so as to reduce the damage to the bridge caused by the earthquake and absorb the earthquake energy.

[0007] The present invention relates to the technical field of bridge earthquake resistance, and in particular to a buffer block and damping combined energy-absorbing bridge earthquake resistance structure, comprising a steel corbel and an earthquake resistance device, wherein the steel corbel is fixed to the top of the side wall of the pier by steel corbel bolts, and the top edge of the steel corbel is connected with two longitudinal webs and two transverse webs, and the top of the steel corbel is evenly provided with a plurality of dampers, the top of the dampers is connected to the bottom of a thin plate, and the tops of the longitudinal webs and the transverse webs are connected to a top plate, and the top plate is fixed to the bottom of a main beam by bolts; an earthquake resistance device is placed on the thin plate, and the earthquake resistance device comprises two earthquake resistance baffles, two earthquake resistance sliders and a fixing device, and the earthquake resistance slider is in a cubic structure, and the two earthquake resistance sliders are connected by a steel spring, and the earthquake resistance baffle is fixed to the two ends of the earthquake resistance slider by a fixing device.

[0008] The steel corbel comprises a steel corbel top plate, a steel corbel web plate, a steel corbel bottom plate and a steel corbel side plate, wherein the steel corbel side plate is provided with a threaded hole for the steel corbel bolts to pass through; the steel corbel top plate and the steel corbel bottom plate are horizontally placed, and two parallel steel corbel web plates are vertically welded therebetween; the outer wall of the steel corbel web plate is respectively connected to the steel corbel top plate, the steel corbel bottom plate and one side of the steel corbel side plate.

[0009] A cylindrical protrusion is provided in the middle of the outer wall of the seismic-resistant sliding block; the fixing device is a fixed track, a gap is provided between the seismic-resistant baffle plate and the seismic-resistant sliding block, and the two side walls of the seismic-resistant baffle plate are fixedly connected to the two ends of the fixed track by fixing bolts.

[0010] A slide groove is formed in the middle of the fixing device, and the width of the slide groove is equal to the outer diameter of the protrusion; and protruding stripes are arranged on the outer surface of the slide groove.

[0011] The thin plate is a high-toughness thin plate, and its upper surface is a rough contact surface.

[0012] The inner walls of the longitudinal web and the transverse web and the outer side wall of the anti-vibration baffle are all covered with a rubber thin layer.

[0013] The longitudinal webs, transverse webs and earthquake-resistant baffles are all high-toughness and high-strength concrete slabs.

[0014] Angle steels are provided below the outer walls of the two transverse webs, and the angle steels are fixed to the top plates of the steel corbels by fixing bolts.

[0015] The shock absorbing device is composed of two cubic seismic sliding blocks connected by steel springs and fixed by two seismic baffles and a fixing device. It can convert the energy of earthquake into energy absorbed by steel spring deformation and energy consumed by friction, and can effectively buffer the longitudinal displacement caused by earthquake through the deformation of steel springs.

[0016] The top plate of the steel bracket is connected to multiple dampers, which are connected to thin plates with high toughness and rough contact surfaces, which can further consume the energy of the earthquake through friction and reduce the longitudinal displacement. At the same time, the deformation of the damping spring can absorb energy and slow down the lateral displacement.

[0017] The inner sides of the longitudinal and transverse webs and the seismic baffles are covered with a thin layer of rubber, which can cushion the collision caused by large lateral and longitudinal displacements, absorb seismic energy, and effectively protect the safety of the device from damage and failure due to collisions and other factors.

[0018] The invention has convenient material acquisition, simple structure, convenient construction and remarkable earthquake-resistant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the decomposition structure of the present invention;

[0020] Figure 2 It is a three-dimensional exploded view of the shock absorbing device;

[0021] Figure 3 This is an enlarged view of the rubber thin layer;

[0022] Figure 4 Enlarge the three-dimensional image for the fixture;

[0023] Figure 5 This is a layout diagram along the bridge direction of the present invention.

[0024] In the figure: 1 steel corbel bottom plate, 2 steel corbel web plate, 3 steel corbel top plate, 4 damping, 5 thin plate, 6 steel corbel bolts, 7 steel corbel side plates, 8 longitudinal web plates, 9 angle steels, 10 transverse web plates, 11 bolts, 12 top plate, 13 seismic baffles, 14 seismic sliders, 15 fixing devices, 16 steel springs, 17 protruding stripes, 18 rubber thin layers, 19 piers, and 23 main beams. DETAILED DESCRIPTION

[0025] The present invention is further described below

[0026] See also Figure 1-5 .

[0027] The present invention discloses a buffer block and damping combined energy-dissipating bridge seismic structure, comprising a steel corbel and a seismic device, wherein the steel corbel is fixed to the upper side wall of a pier 19 by a steel corbel bolt 6, and the top edge of the steel corbel is connected with two longitudinal webs 8 and two transverse webs 10, and a plurality of dampers 4 are evenly arranged on the top of the steel corbel, and the top of the damper 4 is connected to the bottom of a thin plate 5, and the tops of the longitudinal webs 8 and the transverse webs 10 are connected to a top plate 12, and the top plate 12 is fixed to the bottom of a main beam 23 by bolts 11; an seismic device is placed on the thin plate 5, and the seismic device comprises two seismic baffles 13, two seismic sliders 14 and a fixing device 15, and the seismic slider 14 is in a cubic structure, and a steel spring is connected between the two seismic sliders 14 16 is connected, the seismic baffle 13 is fixed to the two ends of the seismic sliding block 14 by a fixing device 15, the shock absorbing device is two cubic seismic sliding blocks 14 connected by steel springs 16, and is fixed by two seismic baffles 13 and a fixing device 15, which can convert the energy of the earthquake into deformation absorption energy of the steel spring 16 and friction consumption energy, and can effectively buffer the longitudinal displacement caused by the earthquake through the deformation of the steel spring 16; the steel corbel top plate 3 is connected to a plurality of dampers 4, and the damper 4 is connected to a thin plate 5 with high toughness and rough contact surface, which can further consume the energy of the earthquake through friction and reduce the longitudinal displacement, and at the same time absorb energy through the deformation of the damping spring, and slow down and limit the lateral displacement; the plurality of dampers 4 work together to make the force uniform and reduce the possibility of single-point damage.

[0028] The steel corbel includes a steel corbel top plate 3, a steel corbel web plate 2, a steel corbel bottom plate 1 and a steel corbel side plate 7, and the steel corbel side plate 7 is provided with a threaded hole for the steel corbel bolt 6 to pass through; the steel corbel top plate 3 and the steel corbel bottom plate 1 are horizontally placed, and two parallel steel corbel web plates 2 are vertically welded therebetween; the outer wall of the steel corbel web plate 2 is respectively connected to the steel corbel top plate 3, the steel corbel bottom plate 1 and one side of the steel corbel side plate 7.

[0029] A cylindrical protrusion is provided in the middle of the outer wall of the seismic-resistant slider 14; the fixing device 15 is a fixed track, a gap is provided between the seismic-resistant baffle plate 13 and the seismic-resistant slider 14, and the two side walls of the seismic-resistant baffle plate 13 are fixedly connected to the two ends of the fixed track by fixing bolts.

[0030] A slide groove is formed in the middle of the fixing device 15, and the width of the slide groove is equal to the outer diameter of the protrusion; a protruding stripe 17 is provided on the outer surface of the slide groove to increase friction, thereby consuming energy and effectively limiting longitudinal displacement.

[0031] The thin plate 5 is a high-toughness thin plate, and its upper surface is a rough contact surface.

[0032] The inner walls of the longitudinal web 8 and the transverse web 10 and the outer walls of the seismic baffle 13 are covered with a thin rubber layer 18, which can buffer the collision caused by large lateral and longitudinal displacements, absorb seismic energy, and effectively protect the safety of the device from damage and failure due to collision and other factors.

[0033] The longitudinal web 8, the transverse web 10 and the seismic baffle 13 are all high-toughness and high-strength concrete slabs.

[0034] Angle steels 9 are provided below the outer walls of the two transverse webs 10 , and the angle steels 9 are fixed to the steel corbel top plate 3 by fixing bolts.

[0035] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings or directly or indirectly applied in related technical fields are also included in the patent protection scope of the present invention.

Claims

1. A buffer block and damping combined energy-dissipating bridge seismic structure, characterized in that: The invention comprises a steel corbel and an anti-seismic device, wherein the steel corbel is fixed to the upper side wall of the pier (19) by means of steel corbel bolts (6), the top edge of the steel corbel is connected to two longitudinal webs (8) and two transverse webs (10), a plurality of dampers (4) are evenly arranged on the top of the steel corbel, the top of the dampers (4) is connected to the bottom of the thin plate (5), the top of the longitudinal webs (8) and the transverse webs (10) are connected to the top plate (12), and the top plate (12) is fixed to the main beam (23) by means of bolts (11). The bottom of the thin plate (5) is provided with an anti-seismic device, the anti-seismic device comprising two anti-seismic baffles (13), two anti-seismic sliders (14) and a fixing device (15), the anti-seismic sliders (14) being in a cubic structure, the two anti-seismic sliders (14) being connected via a steel spring (16), the anti-seismic baffles (13) being fixed to both ends of the anti-seismic sliders (14) via the fixing device (15); the steel corbel comprising a steel corbel top plate (3), a steel corbel belly plate (2), a steel corbel bottom plate (1) and A steel corbel side plate (7) is provided with a threaded hole for the steel corbel bolt (6) to pass through; the steel corbel top plate (3) and the steel corbel bottom plate (1) are placed horizontally, and two parallel steel corbel web plates (2) are vertically welded between the two; the outer wall of the steel corbel web plate (2) is respectively connected to the steel corbel top plate (3), the steel corbel bottom plate (1) and one side of the steel corbel side plate (7); a cylindrical protrusion is provided in the middle of the outer wall of the anti-seismic sliding block (14); the fixing device (15) is fixed A fixed track, a gap is provided between the anti-seismic baffle (13) and the anti-seismic sliding block (14), and the two side walls of the anti-seismic baffle (13) are fixedly connected to the two ends of the fixed track by fixing bolts; a slide groove is formed in the middle of the fixing device (15), and the width of the slide groove is equal to the outer diameter of the protrusion; a protruding stripe (17) is provided on the outer surface of the slide groove; and a thin rubber layer (18) is covered on the inner wall of the longitudinal web (8) and the transverse web (10) and the outer wall of the anti-seismic baffle (13).

2. The buffer block and damping combined energy dissipation bridge seismic structure according to claim 1 is characterized by: The longitudinal web (8), the transverse web (10) and the seismic baffle (13) are all high-toughness and high-strength concrete slabs.

3. The buffer block and damping combined energy dissipation bridge seismic structure according to claim 1 is characterized by: Angle steels (9) are provided below the outer walls of the two transverse webs (10), and the angle steels (9) are fixed to the steel corbel top plate (3) by fixing bolts.

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