CN111501420A - Method for improving fatigue resistance of shear hinge, shear hinge and floating track bed - Google Patents
Method for improving fatigue resistance of shear hinge, shear hinge and floating track bed Download PDFInfo
- Publication number
- CN111501420A CN111501420A CN202010207508.4A CN202010207508A CN111501420A CN 111501420 A CN111501420 A CN 111501420A CN 202010207508 A CN202010207508 A CN 202010207508A CN 111501420 A CN111501420 A CN 111501420A
- Authority
- CN
- China
- Prior art keywords
- shear
- assembly
- track bed
- hinge
- floating track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a method for improving fatigue resistance of a shear hinge, the shear hinge and a floating track bed, wherein according to the characteristic that a shear assembly of the shear hinge mainly bears shear force and bending moment in the vertical direction, the section of the shear assembly is U-shaped or inverted T-shaped so as to improve the bending resistance section coefficient of the shear assembly in the vertical direction, improve the fatigue resistance of the shear hinge, prevent fatigue fracture of the shear hinge and ensure driving safety; meanwhile, the floating track bed is provided with a groove, the shear hinges are arranged in the groove, and the surface of the floating track bed is not provided with a protruding fixing device, so that the track maintenance personnel and the evacuation personnel can conveniently and safely pass.
Description
Technical Field
The invention belongs to the field of rail transit, relates to railway ballast bed accessories, and particularly relates to a method for improving the fatigue resistance of a shear hinge, a shear hinge and a floating ballast bed.
Background
The working principle of the steel spring vibration isolator for urban rail transit at present is that the supporting and vibration damping purposes are achieved by the parallel use of a spring and a damping medium. Due to the problem of material transportation, in the process of manufacturing the steel spring floating track bed, the prefabricated floating track bed is shorter, the plate length is generally three specifications of 3.6m, 4.8m and 6m, and the cast-in-situ floating track bed is generally 25 m. The floating track beds are structurally independent during construction, and need to be connected through corresponding connecting devices (shear hinges) during use, deformation between the floating track beds is coordinated, so that vertical deformation of the track can be continuously changed, and displacement sudden change between the floating track beds is reduced, so that driving safety and riding comfort are not influenced. The connecting device between the present floating track beds mainly comprises: top mount, mid mount and clamp.
The overhead shear hinges are generally used for prefabricated floating track beds, and although the existing overhead shear hinges can be adjusted from the upper part of a prefabricated floating slab to facilitate assembly, new problems are encountered in practice, including: on one hand, the overhead shear hinges occupy the space above the track bed structure, and the situation of conflict with other facilities sometimes occurs in engineering application, so that the popularization and application of the technology are influenced; meanwhile, the upper shear hinge is arranged on the upper surface of the end of the floating plate, and a fixing device which is additionally protruded out of the surface of the floating plate is needed, so that the integral attractiveness of the surface of the floating plate is influenced, the personnel are inconvenient to pass when the track is overhauled and evacuated, and the situation of intentional damage in practice occurs.
The middle-mounted shear hinge is generally used for a cast-in-place floating track bed, is poured in the middle of a floating slab, has no exposed fixed structure, but is difficult to observe the working state, damage and corrosion conditions of materials from the outside after construction, and cannot be overhauled and replaced.
The clamping type shear hinge can be used for both a prefabricated type floating track bed and a cast-in-place floating track bed, a fastener and an anchoring piece are required to be connected with a floating slab, the concrete structure of the floating slab is easily damaged at the position connected with the floating slab in the using process, parts under the floating slab are not easy to replace, and the floating slab joint is required to be ensured to have enough clearance to prevent collision interference with a connecting pull rod, so that the construction difficulty is increased.
Through patent retrieval, the following patents mainly exist, which have a certain relationship with the invention:
1. the invention belongs to clamping type shear hinges, and relates to Chinese invention patents with the application number of 201310169202.4, the application date of 2013.05.09, the publication number of CN 103321107B, the publication number of 2016.01.06, the name of clamping type shear hinges and application thereof and the application person of 'isolating and fixing (Qingdao) vibration control Limited company'. The clamping device comprises an upper clamping piece and a lower clamping piece, wherein at least one connecting pull rod is arranged between the upper clamping piece and the lower clamping piece. The connecting pull rod, the upper clamping piece and the lower clamping piece are used for effectively clamping the adjacent floating plates, so that the function of transferring load between the adjacent floating plates is realized.
2. The invention relates to an easily assembled floating track bed precast slab and application thereof, belonging to the field of rail transit, and being provided with the application number of 201510817365.8, the application date of 2015.11.21, the publication number of CN 105484109B and the publication date of 2017.04.12, namely the easily assembled floating track bed precast slab and the application thereof and the application of the invention of the applicant of the spacing and fixing (Qingdao) vibration control company Limited. The invention can conveniently realize reliable connection with the adjacent floating slab, smoothly transfer shearing force and improve the stress of the floating slab body, and can effectively enhance the integrity of the floating track bed structure, improve the applicability of the system and prolong the service life of the system. The novel prefabricated plate comprises a prefabricated plate body, wherein a positioning guide sleeve is fixedly arranged in the middle of a connecting end on one side of the prefabricated plate body, a butt joint assembly hole is correspondingly arranged in the middle of a connecting end on the other side of the prefabricated plate body, the positioning guide sleeve and the butt joint assembly hole are longitudinally arranged along a rail respectively, at least two positioning guide sleeves are arranged, the number of the butt joint assembly holes is the same as that of the positioning guide sleeves, a grouting channel is arranged on the prefabricated plate body, one end of the grouting channel is communicated with the bottom of the butt joint assembly hole, and the other end.
3. The invention relates to a durable floating track bed plate and a floating track bed thereof, belonging to the field of rail transit, and being provided with the application number of 201510812482.5, the application date of 2015.11.21, the publication number of CN 106592342B, the publication number of 2018.03.06, the name of durable floating track bed plate and floating track bed thereof and the application of the invention of the separation and fixation (Qingdao) vibration control company Limited. The invention solves the problem that the middle-mounted shear hinge and the adjacent floating slab can not be reliably connected in the existing floating track bed. The track bed comprises a floating plate body, wherein at least one side connecting end of the floating plate body is provided with an anchoring assembly groove, at least two anchoring assembly grooves are arranged at the same connecting end, the anchoring assembly grooves are approximately symmetrically arranged by taking a track central line as a center, at least the top surface of the floating plate body is provided with an opening, the size of the opening is at least smaller than that of a lower partial chamber, or at least the top surface of the floating plate body is provided with an opening, and the side wall of each anchoring assembly groove is provided with a convex-concave structure. The durable floating road bed plate can be more reasonably connected with the overhead shear hinge in a matching way.
4. The invention discloses a prefabricated floating plate connecting device and a construction method thereof, and belongs to the invention patent of ' 201811188066.2 ', 2018.10.12 ' on application date, ' CN 109183522A ' on publication date, ' 2019.01.11 ' on publication date, ' a prefabricated floating plate connecting device and a construction method thereof ', and the applicant's ' inventor of ' new material science and technology limited company in the era of Taoises '. The prefabricated floating plate connecting device comprises a shear resistant shaft, a fixed pressing plate, a lateral steel plate, a fixed bolt, an embedded steel plate and an embedded steel sleeve; the embedded steel plate is connected with a lateral steel plate and two fixed pressing plates are stacked. The fixing bolt penetrates through the fixing pressure plate and the embedded steel plate and then is connected with the embedded steel sleeve, a slotted hole is longitudinally formed in the middle of the fixing pressure plate, and the shear resistant shaft is installed in the slotted hole. When the floating slab is poured, embedding the embedded components in the floating slab, and temporarily connecting the embedded components by using temporary bolts; in the process of positioning and assembling the floating plates, the temporary bolts are screwed off, and the fixed pressing plate, the shear-resistant shaft, the embedded steel plate and the embedded sleeve are connected into a whole through the fixed bolts. The invention does not occupy the space of the slab surface, does not generate position interference with other devices, has more beautiful integral ballast bed, improves the stress condition of the floating slab and the connecting device, and is not easy to damage in the using process.
In practical application, a certain distance is arranged between the adjacent floating track beds to adapt to temperature deformation of the track bed plate along the track direction, and when the distance is larger, the shearing resistant assembly needs to bear a large bending moment besides the shearing force. When a train passes through, the directions of the shearing force and the bending moment born by the shearing assembly between the adjacent floating track beds are continuously and alternately changed, and because the existing shearing assembly adopts the cylindrical shearing-resistant shaft, the bending-resistant section coefficient is limited, the capacity of bearing the bending moment is weaker, and the fatigue fracture of the shearing-resistant shaft is easily caused. In order to ensure the fatigue performance and the bending strength of the shear shaft, only the bar with larger diameter can be adopted, so that the product cost is further improved, the total weight of the product is increased, and more difficulties are brought to the field transportation and installation of constructors.
Disclosure of Invention
The invention aims to solve the technical problem of fatigue fracture of the existing cylindrical shear-resistant shaft, and provides a method for improving the fatigue resistance of a shear hinge, a shear hinge and a floating track bed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for improving the fatigue resistance of a shear hinge improves the fatigue resistance of the shear hinge by increasing the bending resistance section coefficient of a shear assembly in the vertical direction. The cross-sectional shape of the shear assembly is selected based on the characteristics that the shear assembly mainly bears the shear force and the bending moment in the vertical direction.
Furthermore, the size of the shear assembly in the vertical direction is increased to increase the bending-resistant section coefficient of the shear assembly in the vertical direction, so that materials are fully utilized, and the best use is realized.
Further, the size of the shear assembly in the vertical direction is larger than that of the shear assembly in the horizontal direction, so as to increase the bending section modulus of the shear assembly as much as possible.
Further, the cross section of the shear assembly is U-shaped or inverted T-shaped, so that bolts can be sleeved and screwed in the shear assembly.
The invention relates to a shear hinge for realizing the method, which comprises a shear assembly, wherein the cross section of the shear assembly is larger than the size of the shear assembly in the horizontal direction in the vertical direction, so that materials are fully utilized, and the best use of the materials is realized.
Furthermore, the shearing resistant assembly comprises a vertical plate in the vertical direction and a bottom plate in the horizontal direction, and the width of the vertical plate is larger than that of the bottom plate; the bottom plate is provided with a bolt hole on the surface, and the bolt hole comprises a round positioning hole and a waist-shaped telescopic hole. The temperature deformation of the floating track bed blocked by the bolts is avoided, so that the bolts are prevented from being damaged.
Further, still including pre-buried subassembly in floating the railway roadbed, pre-buried subassembly's lower extreme and the prefabricated as an organic whole of floating the railway roadbed, pre-buried subassembly's upper end and the subassembly that shears are connected. The anti-shearing assembly can be installed on the upper surface of the floating track bed, and the installation is simple and convenient.
Further, a friction pair is arranged between the bottom plate and the floating track bed, so that the floating track bed can freely stretch and contract in the horizontal direction relative to the shear hinges, and the friction resistance in the horizontal direction is reduced.
Furthermore, the friction pair comprises a stainless steel plate arranged on the lower surface of the bottom plate and a wear plate tightly attached to the lower surface of the stainless steel plate.
The invention also relates to a floating track bed, wherein the upper surface positions of adjacent floating track beds are provided with grooves, two or four groups of grooves are generally arranged and distributed at the upper positions of two ends of the floating track bed and symmetrically distributed with the central line of the track, and the shear hinges are arranged in the grooves. The fatigue resistance of the shear hinge is improved, the fatigue fracture of the shear hinge is prevented, and the driving safety is ensured; meanwhile, the surface of the floating track bed is not provided with a protruding fixing device, so that rail maintainers and evacuated persons can conveniently pass through the floating track bed. The depth of the mounting groove on the floating road bed can be flexibly set according to the height of the shear hinge, the structure is not limited to the situation that the shear hinge structure is completely arranged in the groove, and the groove can be partially protruded, or more extreme situation, when the depth of the groove is zero, the mounting groove can be regarded as an overhead mounting.
The invention has the beneficial effects that: according to the characteristic that the shear resistant assembly mainly bears the shear force and the bending moment in the vertical direction, the section of the shear resistant assembly is U-shaped or inverted T-shaped so as to improve the bending resistance section coefficient of the shear resistant assembly in the vertical direction, improve the fatigue resistance of a shear hinge, prevent the fatigue fracture of the shear hinge and ensure the driving safety; meanwhile, the surface of the floating track bed is not provided with a protruding fixing device, so that rail maintainers and evacuated persons can conveniently pass through the floating track bed.
Drawings
FIG. 1 is a schematic diagram of a floating track bed and shear hinge connection;
FIG. 2 is a schematic cross-sectional view taken along line C-C of FIG. 1;
FIG. 3 is a schematic front view of a shear hinge;
FIG. 4 is a schematic top view of a shear hinge;
FIG. 5 is a schematic front view of the pre-buried assembly;
FIG. 6 is a schematic top view of the pre-buried assembly;
FIG. 7 is a schematic top view of a wear plate;
FIG. 8 is a front view of shear assembly embodiment 1;
FIG. 9 is a schematic top view of embodiment 1 of the shear assembly;
FIG. 10 is a front view of shear assembly embodiment 2;
FIG. 11 is a schematic top view of shear assembly embodiment 3;
FIG. 12 is a schematic top view of shear assembly embodiment 4;
in the figure: a-floating track bed, A1-groove, B-shear hinge, C-cutting plane, 1-shear assembly, 11-vertical plate, 12-bottom plate, 13-positioning hole, 14-telescopic hole, 15-rivet hole, 16-hoisting hole, 2-pre-embedded assembly, 21-anchor rod, 22-tension resisting plate, 23-threaded hole, 3-wear resisting plate, 4-stainless steel plate, 5-rivet, 6-flat washer, 7-spring washer and 8-hexagon socket head cap screw.
Detailed Description
The invention is further described by the following specific embodiments in conjunction with the attached drawings:
the method for improving the fatigue resistance of the shear hinge comprises the following steps: the bending-resistant section coefficient of the shear assembly 1 in the vertical direction is increased by increasing the size of the shear assembly 1 in the vertical direction in the shear hinge B, so that the fatigue resistance of the shear hinge B is improved. Because the bending section coefficient in the vertical direction is in direct proportion to the square of the size in the vertical direction, if the cross section of the shear assembly 1 is in a U shape or an inverted T shape, when the size in the vertical direction is larger than the size in the horizontal direction, a larger bending section coefficient can be obtained, a larger bending moment can be borne, and the fatigue resistance of the shear assembly 1 is greatly improved. That is to say: when the materials are the same, the anti-fatigue performance of the U-shaped or inverted T-shaped anti-shearing assembly 1 is better than that of a cylindrical anti-shearing shaft; when the fatigue resistance performance is the same, the U-shaped or inverted T-shaped shearing resisting assembly 1 has less material consumption than the cylindrical shearing resisting shaft; the mechanical property of the material is fully utilized, and the best use of the material is realized.
Shear hinge B embodiment 1 of the invention is shown in fig. 3 to 9: the anti-shearing device comprises a shearing assembly 1, a pre-embedded assembly 2, a wear-resisting plate 3, a stainless steel plate 4, a rivet 5, a flat washer 6, a spring washer 7 and an inner hexagon bolt 8.
The embedded component 2 comprises: the anchor rod 21 and the arm-tie 22, the up end of anchor rod 21 is provided with axial screw hole 23, and the up end welding of anchor rod 21 has anti arm-tie 22. The lower end of the anchor rod 21 is bound with a steel reinforcement framework at the groove A1 of the floating track bed A, and is integrated with the floating track bed A after concrete is poured. The upper end of the anchor rod 21 is exposed out of the upper surface of the floating track bed A at the groove A1 for connection with the shear resistant assembly 1, and the upper-mounted shear hinge B is easy to install.
The shear assembly 1 is mainly used for bearing shearing force and bending moment in the vertical direction, and rectangular bars or rectangular pipes with the vertical dimension larger than the horizontal dimension can be adopted. In order to facilitate connection with the anchor rods 21 of the embedded assembly 2, the shear assembly 1 of the present embodiment has a U-shaped cross section so that nuts can be inserted and tightened in the U-shaped grooves.
The shear assembly 1 of U-shaped cross-section comprises: the lifting device comprises two parallel vertical plates 11 in the vertical direction and a bottom plate 12 in the horizontal direction, wherein the height of each vertical plate 11 is larger than the width of the bottom plate 12, and a lifting hole 16 is formed in each vertical plate 11; four bolt holes are arranged on the surface of the bottom plate 12, and two circular positioning holes 13 and two waist-shaped telescopic holes 14 are arranged in the four bolt holes and are symmetrically arranged on two sides of a central line respectively. The two circular positioning holes 13 are fixedly connected with the anchor ingot steel bars 21 of the embedded assemblies 2 in the floating track bed A and used for fixing the shear assemblies 1; the two waist-shaped telescopic holes 14 are fixedly connected with the anchor steel rods 21 of the embedded assemblies 2 in the adjacent floating track bed A, the hexagon socket head bolts 8 of the telescopic holes 14 cannot be screwed too tightly, and when the floating track bed A freely stretches along the horizontal direction (the direction of a rail) due to thermal expansion and cold contraction, the anchor steel rods 21 of the embedded assemblies 2 poured in the adjacent floating track bed A can move in the waist-shaped telescopic holes 14. The anchor steel bar 21 is prevented from obstructing the floating track bed A to freely stretch in the horizontal direction, and the anchor steel bar 21 or the floating track bed A is prevented from being damaged due to temperature change.
In order to reduce the frictional force of the floating track bed a expanding and contracting in the horizontal direction, a rivet hole 15 is provided in the side surface of the bottom plate 12, and the stainless steel plate 4 is fixed to the lower surface of the bottom plate 12 by a rivet 5. An abrasion-resistant plate 3 is arranged between the stainless steel plate 4 and the upper surface of the floating track bed A, and the abrasion-resistant plate 3 and the stainless steel plate 4 form a friction pair. The wear-resisting plate 3 is square or annular, the middle of the wear-resisting plate is provided with a bolt hole matched with the anchor ingot steel bar 21, the wear-resisting plate 3 is made of engineering plastics such as an ultrahigh molecular weight polyethylene plate (UHMWPE) or Polytetrafluoroethylene (PTFE) and the like, and the upper surface of the wear-resisting plate is provided with an oil storage tank to provide a longitudinal sliding function. The ultra-high molecular weight polyethylene plate has the excellent performances of wear resistance, corrosion resistance, impact resistance, low temperature resistance, self lubrication, small friction coefficient, low water absorption, difficult adhesion of foreign matters and the like.
The step of installing the shear hinge B is as follows:
the method comprises the following steps: the wear-resisting plate 3 is sleeved on the anchor ingot steel bar 21 of the embedded assembly 2 of the floating track bed A;
step two: sleeving the positioning hole 13 of the bottom plate 12 of the shear assembly 1 on the anchor ingot steel bar 21 of the embedded assembly 2, and sleeving the telescopic hole 14 on the anchor ingot steel bar 21 of the embedded assembly 2 of the adjacent floating track bed A;
step three: sequentially sleeving a flat washer 6 and a spring washer 7 on an anchor steel bar 21 of the embedded component 2, and screwing an inner hexagon bolt 8 into a threaded hole 23 on the anchor steel bar 21;
step four: screwing down the hexagon socket head cap bolts 8 at the positioning holes 13 to enable the shear assembly 1 to be tightly connected with the floating track bed A;
step five: screwing the hexagon socket head cap bolts 8 at the fixed shrinkage holes 14 to enable the shear assembly 1 to be tightly connected with the adjacent floating track bed A, wherein the screwing tightness is lower than that at the positioning holes 13, so that the floating track bed A can freely stretch in the horizontal direction;
the overhead shear hinge B adopts a bolt connection mode from bottom to top, and is convenient to install and maintain.
A shear hinge embodiment 2 of the present invention is shown in fig. 10: the difference from the embodiment 1 is that the vertical plate 11 is trapezoidal, the size of the vertical direction of the trapezoidal vertical plate 11 is adapted to the bending moment distribution of the shear assembly 1, and an excess part of material can be removed, so that the weight of the shear assembly 1 is reduced, the installation is convenient, and the material cost is reduced.
A shear hinge embodiment 3 of the present invention is shown in fig. 11: the difference from the embodiment 1 is that the vertical plate 11 is a semi-ellipse, the size of the semi-ellipse 11 in the vertical direction is also suitable for the bending moment distribution of the shear assembly 1, and the extra material can be removed, so that the weight of the shear assembly 1 is reduced, the installation is convenient, and the material cost is reduced.
A shear hinge embodiment 4 of the present invention is shown in fig. 12: the difference from example 1 is that: in the embodiment 1, the shear assembly 1 with the U-shaped cross section is formed by two vertical plates 11 and a bottom plate 12, and in the embodiment 4, the shear assembly 1 with the inverted T-shaped cross section is formed by one vertical plate 11 and one bottom plate 12. Such an operation space is large, and installation of the shear assembly 1 is facilitated. The vertical plate 11 can be rectangular, trapezoidal or semi-elliptical.
As shown in fig. 1 and 2: the invention also relates to a floating track bed, wherein the upper surface of the floating track bed A is provided with two or four groups of grooves A1, and the grooves A1 are generally distributed at the upper parts of the two ends of the floating track bed A and are symmetrically distributed with the central line of the track. The shear hinges B are arranged in the grooves A1 of the adjacent floating track bed A, and the shear hinges B bear the shear force and the bending moment in the vertical direction. Because the shear hinge B adopts the U-shaped or inverted T-shaped shear assembly 1, the fatigue resistance of the shear hinge B is better than that of a cylindrical shear shaft, the mechanical property of the material can be fully utilized, and the best use of the material is realized.
Meanwhile, as the shear hinges B are arranged in the grooves A1 of the floating track bed (A), the surface of the floating track bed (A) is not provided with a protruding fixing device, so that rail maintainers and evacuation personnel can safely pass through the floating track bed.
In summary, the following steps: the invention has the beneficial effects that: according to the characteristic that the shear resistant assembly mainly bears the shear force and the bending moment in the vertical direction, the section of the shear resistant assembly is U-shaped or inverted T-shaped so as to improve the bending resistance section coefficient of the shear resistant assembly in the vertical direction, improve the fatigue resistance of a shear hinge, prevent the fatigue fracture of the shear hinge and ensure the driving safety; meanwhile, the surface of the floating track bed is not provided with a protruding fixing device, so that rail maintainers and evacuated persons can conveniently pass through the floating track bed.
The above embodiments are provided for illustrative purposes only and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should fall within the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. A method for improving the fatigue resistance of shear hinge is characterized by comprising the following steps: the fatigue resistance of the shear hinge is improved by increasing the bending section coefficient of the shear assembly in the vertical direction.
2. The method of claim 1, wherein: the bending section coefficient of the shear assembly in the vertical direction is increased by increasing the size of the shear assembly (1) in the vertical direction.
3. The method of claim 2, wherein: the size of the shear assembly (1) in the vertical direction is larger than that of the shear assembly in the horizontal direction.
4. The method of claim 3, wherein: the section of the shear assembly (1) is U-shaped or inverted T-shaped.
5. A shear hinge for carrying out the method of any one of claims 1 to 4, comprising a shear assembly (1), characterized in that: the cross section of the shear assembly (1) is larger than the horizontal dimension in the vertical direction.
6. The shear hinge of claim 5, wherein: the shear assembly (1) comprises a vertical plate (11) in the vertical direction and a bottom plate (12) in the horizontal direction, and the width of the vertical plate (11) is larger than that of the bottom plate (12); the surface of the bottom plate (12) is provided with bolt holes, and the bolt holes comprise circular positioning holes (13) and waist-shaped telescopic holes (14).
7. The shear hinge of claim 6, wherein: still including pre-buried subassembly (2) in floating track bed (A), the lower extreme of pre-buried subassembly (2) and the prefabrication of floating track bed (A) are as an organic whole, and the upper end and the subassembly (1) that shears of pre-buried subassembly (2) are connected.
8. The shear hinge of claim 7, wherein: a friction pair is arranged between the bottom plate (12) and the floating track bed (A) so that the floating track bed (A) can slide and stretch relative to the shear hinges (B).
9. The shear hinge of claim 8, wherein: the friction pair comprises a stainless steel plate (4) arranged on the lower surface of the bottom plate (12) and a wear-resisting plate (3) tightly attached to the lower surface of the stainless steel plate (4).
10. A floating track bed, comprising: adjacent floating track beds (a) are provided with recesses (a 1) in their upper surface position, and shear hinges (B) according to any of claims 5 to 9 are provided in the recesses (a 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010207508.4A CN111501420A (en) | 2020-03-23 | 2020-03-23 | Method for improving fatigue resistance of shear hinge, shear hinge and floating track bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010207508.4A CN111501420A (en) | 2020-03-23 | 2020-03-23 | Method for improving fatigue resistance of shear hinge, shear hinge and floating track bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111501420A true CN111501420A (en) | 2020-08-07 |
Family
ID=71874174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010207508.4A Pending CN111501420A (en) | 2020-03-23 | 2020-03-23 | Method for improving fatigue resistance of shear hinge, shear hinge and floating track bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114277618A (en) * | 2020-12-04 | 2022-04-05 | 安境迩（上海）科技有限公司 | Built-in replaceable shear hinge device and mounting and replacing method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011038612A1 (en) * | 2009-09-30 | 2011-04-07 | 隔而固(青岛)振动控制有限公司 | Side floating road bed |
| CN202117182U (en) * | 2011-06-07 | 2012-01-18 | 隔而固(青岛)振动控制有限公司 | Sheering hinge and application thereof |
| CN204385563U (en) * | 2014-12-19 | 2015-06-10 | 北京九州一轨隔振技术有限公司 | A kind of railway roadbed end bending resistance coupling arrangement |
| CN107587424A (en) * | 2017-09-20 | 2018-01-16 | 广东省交通规划设计研究院股份有限公司 | A kind of ultra-high performance concrete floorings |
| CN207567571U (en) * | 2017-11-14 | 2018-07-03 | 北京九州一轨隔振技术有限公司 | A kind of attachment device at plate stitch between adjacent floating plate |
| CN207878189U (en) * | 2017-11-14 | 2018-09-18 | 北京九州一轨隔振技术有限公司 | A kind of shear hinge for floating plate |
| CN109183522A (en) * | 2018-10-12 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of floating board connecting equipment of prefabricated and its construction method |
| CN208545622U (en) * | 2018-07-02 | 2019-02-26 | 隔而固(青岛)振动控制有限公司 | Bending resistance square shear hinge |
| CN208733394U (en) * | 2018-08-27 | 2019-04-12 | 隔而固(青岛)振动控制有限公司 | Equipped with the floating ballast bed of middle shear hinge installation passage |
-
2020
- 2020-03-23 CN CN202010207508.4A patent/CN111501420A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011038612A1 (en) * | 2009-09-30 | 2011-04-07 | 隔而固(青岛)振动控制有限公司 | Side floating road bed |
| CN202117182U (en) * | 2011-06-07 | 2012-01-18 | 隔而固(青岛)振动控制有限公司 | Sheering hinge and application thereof |
| CN204385563U (en) * | 2014-12-19 | 2015-06-10 | 北京九州一轨隔振技术有限公司 | A kind of railway roadbed end bending resistance coupling arrangement |
| CN107587424A (en) * | 2017-09-20 | 2018-01-16 | 广东省交通规划设计研究院股份有限公司 | A kind of ultra-high performance concrete floorings |
| CN207567571U (en) * | 2017-11-14 | 2018-07-03 | 北京九州一轨隔振技术有限公司 | A kind of attachment device at plate stitch between adjacent floating plate |
| CN207878189U (en) * | 2017-11-14 | 2018-09-18 | 北京九州一轨隔振技术有限公司 | A kind of shear hinge for floating plate |
| CN208545622U (en) * | 2018-07-02 | 2019-02-26 | 隔而固(青岛)振动控制有限公司 | Bending resistance square shear hinge |
| CN208733394U (en) * | 2018-08-27 | 2019-04-12 | 隔而固(青岛)振动控制有限公司 | Equipped with the floating ballast bed of middle shear hinge installation passage |
| CN109183522A (en) * | 2018-10-12 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of floating board connecting equipment of prefabricated and its construction method |
Non-Patent Citations (1)
| Title |
|---|
| 郭战胜等: "《材料力学》", 30 August 2013, 同济大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114277618A (en) * | 2020-12-04 | 2022-04-05 | 安境迩（上海）科技有限公司 | Built-in replaceable shear hinge device and mounting and replacing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100987062B1 (en) | Expansion joint for bridges and this construction technique capable of a drainage sheet change | |
| BR112014010111A2 (en) | elastic rail fastening device | |
| CN208472484U (en) | A kind of damping type magnetic floating system rail telescopic adjustment structure | |
| CN111501420A (en) | Method for improving fatigue resistance of shear hinge, shear hinge and floating track bed | |
| KR100643015B1 (en) | A pot bearing for bridge of spherical type | |
| CN212983571U (en) | Large-displacement bridge expansion joint | |
| CN213017446U (en) | Friction damping shock insulation steel support with prevent roof beam function that falls | |
| KR101767489B1 (en) | Orbital beam expansion joint device for monorail | |
| CN209759911U (en) | Suspension type track beam support of self-adaptation track slope change | |
| CN109797984B (en) | Variable-curvature multipurpose steering device for external prestressed tendons | |
| CN111764268A (en) | Self-resetting support | |
| KR20070000971A (en) | Expansion and contraction joint | |
| CN212404814U (en) | Road expansion joint structure for municipal bridge | |
| CN212656108U (en) | Self-resetting support | |
| CN211285244U (en) | Rubber vibration-damping rollover-prevention support | |
| Zeinali et al. | Effects of Hinged dowel system on the performance of concrete pavement joints | |
| CN110761183A (en) | Rubber vibration-damping rollover-prevention support | |
| CN110747731A (en) | Anti-rollover locking type metal support | |
| CA2483130C (en) | Bearing and expansion joint system including same | |
| CN110747730A (en) | Anti-rollover metal vibration reduction support | |
| RU2746165C1 (en) | Method for frictional compensation of movements of continous welded rail track and device for its implementation | |
| CN115058958A (en) | Method capable of transferring earthquake risk of CRTS II-shaped bridge-rail system | |
| KR102620408B1 (en) | Optimization of securing the edge distance and seismic isolation support for easy maintenance and replacement | |
| CN216040618U (en) | Multidirectional displacement anti-seismic facility device for bridge | |
| KR102403058B1 (en) | Piping installation structure that improves seismic resistance, vibration resistance, elasticity and piping construction method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200807 |
|
| RJ01 | Rejection of invention patent application after publication |