CN113772576A - Annular hydraulic cylinder and method for jacking bridge and building by using annular hydraulic cylinder - Google Patents
Annular hydraulic cylinder and method for jacking bridge and building by using annular hydraulic cylinder Download PDFInfo
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- CN113772576A CN113772576A CN202111105055.5A CN202111105055A CN113772576A CN 113772576 A CN113772576 A CN 113772576A CN 202111105055 A CN202111105055 A CN 202111105055A CN 113772576 A CN113772576 A CN 113772576A
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- 239000000463 material Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000013011 mating Effects 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009435 building construction Methods 0.000 abstract description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
- B66F3/28—Adaptations or arrangements of pistons telescopic
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/055—Jacks with a single cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/055—Jacks with a single cylinder
- B66F2700/057—Pistons, e.g. telescopic; Cylinders or sealing joints; Hydraulic travel-limiting devices or shock damping
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B2001/3588—Extraordinary methods of construction, e.g. lift-slab, jack-block using special lifting or handling devices, e.g. gantries, overhead conveying rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/855—Testing of fluid pressure systems
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- Structural Engineering (AREA)
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Abstract
The application discloses an annular hydraulic cylinder and a method for jacking a bridge and a building by using the annular hydraulic cylinder, which are used for solving the problems of complex operation and low data accuracy when supporting pillars of the bridge and the building at multiple points. Wherein, an annular pneumatic cylinder for support post in bridge and the building construction process includes: an annular cylinder body; the annular piston is arranged between the inner ring and the outer ring of the annular cylinder body and moves relative to the annular cylinder body and is used for supporting the column; a closed space is formed between the annular cylinder and the annular piston and is used for storing hydraulic liquid; the annular cylinder body and the annular piston are made of steel materials; the annular piston moves relative to the annular cylinder and has a first matching state and a second matching state; in the first matching state, hydraulic liquid is injected into the closed space and pushes the annular piston to ascend; in the second mating state, the closed space discharges the hydraulic fluid, and the annular piston descends along with the hydraulic fluid. And an integral support design is adopted, so that the operation steps are simplified, and the data accuracy is improved.
Description
Technical Field
The application relates to the technical field of bridge and building construction, in particular to an annular hydraulic cylinder and a method for jacking a bridge and a building by using the annular hydraulic cylinder.
Background
In the independent column work progress of bridge and building, whether need detect the post that has the displacement, place a plurality of hydraulic means at independent column periphery this moment, each point is all through suppressing and post interact, all is provided with the sensor in each point and carries out data measurement.
In the process of realizing the prior art, the inventor finds that:
because the sensing data measurement is carried out in a multi-point supporting mode, the final measurement data is not very accurate, and the whole process is relatively complicated.
Therefore, it is necessary to provide an integrally supported annular hydraulic cylinder and a method for jacking a bridge and a building by using the annular hydraulic cylinder, so as to solve the technical problems of inaccurate measurement data and complicated measurement process.
Disclosure of Invention
The embodiment of the application provides an annular hydraulic cylinder and a method for jacking a bridge and a building by using the annular hydraulic cylinder, and aims to solve the technical problems of inaccurate measurement data and complicated measurement process.
Concretely, an annular pneumatic cylinder for support post and detect among bridge and the building construction process includes:
an annular cylinder body;
the annular piston is arranged between the inner ring and the outer ring of the annular cylinder body and moves relative to the annular cylinder body and is used for supporting the column;
wherein a closed space is formed between the annular cylinder and the annular piston and is used for storing hydraulic liquid;
the annular cylinder body and the annular piston are made of steel materials;
the annular piston moves relative to the annular cylinder and has a first matching state and a second matching state;
in the first matching state, hydraulic liquid is injected into the closed space and pushes the annular piston to ascend;
in the second mating state, the closed space discharges the hydraulic fluid, and the annular piston descends along with the hydraulic fluid.
Further, the annular cylinder includes:
an annular base plate;
the outer ring vertical plate and the inner ring vertical plate are respectively and vertically arranged at the outer side edge and the inner side edge of the annular bottom plate;
and an annular groove is formed among the annular bottom plate, the outer ring vertical plate and the inner ring vertical plate and is used for providing a track for the annular piston to move up and down under the action of hydraulic liquid.
Furthermore, a fixing column with the length larger than the maximum running distance of the annular piston is vertically arranged on the annular bottom plate and used for preventing the annular piston from rotating in the annular groove.
Furthermore, the inner angle of the connecting part of the annular bottom plate in the annular groove and the outer annular vertical plate and the inner annular vertical plate is a circular arc;
and the R angle of the circular arc is calculated by a stress calculation model.
Further, the annular piston includes:
an annular piston bottom plate;
the piston outer ring vertical plate and the piston inner ring vertical plate are respectively and vertically arranged at the outer side edge and the inner side edge of the annular piston bottom plate;
the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate form an annular convex surface side for bearing pressure generated by hydraulic liquid in the annular groove;
and the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate form an annular concave surface side for supporting the pillar.
Further, the annular piston bottom plate is provided with through holes for hydraulic fluid injection and discharge.
Furthermore, an annular ring is arranged on the outer side of the annular piston bottom plate and used for processing chamfers.
Furthermore, a plurality of annular grooves are formed in the outer side of the piston outer ring vertical plate and the outer side of the piston inner ring vertical plate and used for installing sealing strips.
Furthermore, the annular piston is also provided with a rib plate;
the rib plates are vertically arranged on the annular piston bottom plate and are vertically connected with the piston outer ring vertical plate and the piston inner ring vertical plate;
and the rib plate is provided with a fixing hole matched with the fixing column.
The embodiment of the application also provides a method for jacking the bridge and the building by using the annular hydraulic cylinder.
Specifically, the method for jacking the bridge and the building by using the annular hydraulic cylinder comprises the following specific steps:
fixing the annular hydraulic cylinder on a construction bearing platform;
annular pneumatic cylinder for support post among bridge and the building construction process includes:
an annular cylinder body;
the annular piston is arranged between the inner ring and the outer ring of the annular cylinder body and moves relative to the annular cylinder body and is used for supporting the column;
wherein a closed space is formed between the annular cylinder and the annular piston and is used for storing hydraulic liquid;
the annular cylinder body and the annular piston are made of steel materials;
the annular piston moves relative to the annular cylinder and has a first matching state and a second matching state;
in the first matching state, hydraulic liquid is injected into the closed space and pushes the annular piston to ascend;
in a second matching state, the closed space discharges hydraulic fluid, and the annular piston descends along with the hydraulic fluid;
a sensor is arranged on the annular hydraulic cylinder;
pressurizing the annular hydraulic cylinder according to the strength of the support column and the design requirement;
and when the measurement value of the sensor is within the specification range, the support column and the annular hydraulic cylinder are cast into a whole.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
by adopting the integral support design, the operation steps are simplified, and the accuracy of the measured data is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an annular hydraulic cylinder according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a method for jacking a bridge and a building by using an annular hydraulic cylinder according to an embodiment of the present application.
100 ring hydraulic cylinder
11 annular cylinder
12 ring piston
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the present application discloses an annular hydraulic cylinder 100 for supporting and detecting a pillar during bridge and building construction, comprising:
an annular cylinder 11;
an annular piston 12 disposed between the inner ring and the outer ring of the annular cylinder 11 and moving relative to the annular cylinder 11 for supporting the column;
wherein, a closed space is formed between the annular cylinder 11 and the annular piston 12 and is used for storing hydraulic liquid;
the annular cylinder body 11 and the annular piston 12 are made of steel materials;
the annular piston 12 moves relative to the annular cylinder 11 and has a first matching state and a second matching state;
in the first matching state, the closed space is filled with hydraulic liquid, and the annular piston 12 is pushed to ascend by the hydraulic liquid;
in the second mating condition, the closed space is drained of hydraulic fluid and the annular piston 12 follows the hydraulic fluid.
It can be understood that, in the actual construction of bridges, viaducts, buildings and the like, the installation and construction of load-bearing columns are often involved, including columns which need to be detected whether there is displacement. The construction process of the bridge and the building can be the construction process of a bearing independent column of the bridge, the viaduct and the building and can also be any construction occasion needing to install the bearing column. In the specific implementation, here the annular cylinder 11 and the annular piston 12 are matched. Between the inner and outer rings of the annular cylinder 11 there is an annular recessed area, where the recessed area is sized to receive the annular piston 12 and allow the annular piston 12 to perform a lifting movement in the recessed area. In actual use, through holes for hydraulic fluid injection and discharge can be found at suitable positions on the annular cylinder 11 or the annular piston 12. The annular piston is pushed to integrally move towards the direction consistent with the opening direction of the annular cylinder body by the pressure generated by injection of hydraulic liquid, and at the moment, the annular piston integrally drives the external bearing column or bearing pillars and other bearing columns to be lifted upwards, so that the ground clearance of the bearing columns is improved. The annular cylinder body 11 and the annular piston 12 are made of steel materials, so that the pressure resistance of the annular hydraulic cylinder 100 can be effectively enhanced, and meanwhile, the steel materials are low in acquisition cost, so that the production cost can be effectively reduced. When selecting the steel material, the material of the steel material to be used and the thickness of the cylinder body of the annular hydraulic cylinder are calculated according to the actual use working condition and the pressure value to be exerted by the annular hydraulic cylinder. Obviously, through adopting the design that the annular piston 12 integrally supports the pillar, the step of jacking the pillar can be simplified, and the working efficiency is effectively improved.
Further, in an embodiment provided herein, the annular cylinder 11 includes:
an annular base plate;
the outer ring vertical plate and the inner ring vertical plate are respectively and vertically arranged at the outer side edge and the inner side edge of the annular bottom plate;
an annular groove is formed among the annular bottom plate, the outer annular vertical plate and the inner annular vertical plate, and is used for providing a track for the annular piston 12 to move up and down under the action of hydraulic liquid.
In the specific design of the annular hydraulic cylinder 100, the annular bottom plate is a circular ring shape formed by an outer circle and an inner circle with the centers at the same point. Due to the circular ring shape design, stress can be evenly distributed on the annular hydraulic cylinder 100, and safety is higher. The outer ring vertical plate is vertical to the edge of the outer circle of the annular bottom plate, the inner ring vertical plate is vertical to the edge of the inner circle of the annular bottom plate, and the vertical heights of the outer ring vertical plate and the inner ring vertical plate are kept equal. Within the vertical height range of the outer annular vertical plate and the inner annular vertical plate, the annular groove can be understood as a hollow annular cylinder. When the annular piston 12 moves in an annular vertical channel formed by the annular groove under the action of hydraulic liquid, because the stress is uniform, the friction loss during the relative motion between the annular cylinder body 11 and the annular piston 12 can be effectively reduced, and the stability and the safety of the annular hydraulic cylinder are improved.
Specifically, in one embodiment provided herein, a fixing column having a length greater than the maximum travel distance of the annular piston 12 is vertically disposed on the annular bottom plate, so as to prevent the annular piston 12 from rotating in the annular groove.
It will be appreciated that the purpose of the lifting movement of the annular piston 12 is to lift or lower the load bearing column attached thereto. The matched parts of the annular cylinder body 11 and the annular piston 12 are annular, if the annular cylinder body and the annular piston are not provided with anti-rotation devices, the annular cylinder body and the annular piston are likely to rotate under the action of external force and can drive the bearing support fixed on the annular cylinder body to rotate, so that certain errors exist in the installation angle of the bearing support, and potential safety hazards are brought. This application can prevent annular piston 12 relative annular cylinder body 11 rotatory through setting up the fixed column at annular bottom plate. The fixed column and the annular piston 12 are matched, and the annular piston 12 does not influence the ascending and descending movement in the annular cylinder 11. In a specific implementation, a sleeve matched with the length of the fixed column can be arranged on the annular piston. The sleeve is fitted over the fixed post during the raising and lowering movement of the annular piston 12, the depth of the sleeve being sufficient so that when the annular piston 12 is raised to its maximum position, the fixed post remains within the sleeve. The sleeve is provided on the other side of the annular piston 12 on the side where the annular piston 12 contacts the annular bottom plate of the annular cylinder 11. Preferably, there may be 2 fixing posts and 2 corresponding sleeves. Preferably, the fixing column is not in contact with the outer ring vertical plate and the inner ring vertical plate of the annular cylinder 11, so as to avoid adverse effects on the overall tightness of the annular hydraulic cylinder 100. Obviously, through setting up the fixed column, can prevent effectively that annular piston 12 and annular cylinder body 11 from taking place relative rotary motion, improve the security of annular pneumatic cylinder 100 and the accuracy of bearing pillar installation angle.
Further, in a specific embodiment provided by the present application, an inner angle at a connection position of the annular bottom plate in the annular groove and the outer annular vertical plate and the inner annular vertical plate is an arc;
and the R angle of the circular arc is calculated by a stress calculation model.
It is understood that the circular arc is an inner angle formed by chamfering. The dimension of the R-angle here is understood to correspond to the radius of the chamfer, which is obtained by a special stress calculation formula. In a specific implementation process, when the diameter of the outer circle formed by the outer ring vertical plate of the annular cylinder 11 is 1000mm, the radius of the chamfer is not less than 12mm through calculation of a stress calculation formula. It is obvious that, in addition to the chamfering of the inner corners of the annular cylinder 11, the outer corners of the annular piston 12 may also be machined to be rounded. When the annular cylinder 11 and the annular piston 12 move relatively, the inner angle of the annular cylinder 11 corresponds to the outer angle of the annular piston 12. When the annular piston 12 is at the shortest distance of travel, the cylinder part at the inner corner of the annular cylinder 11 and the piston body part at the outer corner of the annular piston 12 are in contact. Preferably, the outer corner formed by connecting the annular bottom plate of the annular cylinder 11 and the outer annular vertical plate, the outer corner formed by connecting the annular bottom plate and the inner annular vertical plate, and the outer corner and the inner corner related to the annular piston 12 may be chamfered. Through chamfering treatment, the pressure resistance of the annular cylinder body 11 and the annular piston 12 can be effectively improved, and the safety is effectively improved.
Specifically, in one embodiment provided herein, the annular piston 12 includes:
an annular piston bottom plate;
the piston outer ring vertical plate and the piston inner ring vertical plate are respectively and vertically arranged at the outer side edge and the inner side edge of the annular piston bottom plate;
the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate form an annular convex surface side for bearing pressure generated by hydraulic liquid in the annular groove;
and the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate form an annular concave surface side for supporting the pillar.
It will be appreciated that the annular cylinder 100 requires the annular cylinder 11 and the annular piston 12 to cooperate in operation. In the specific design of the annular hydraulic cylinder 100, the annular piston bottom plate in the annular piston 12 is a circular ring formed by an outer circle and an inner circle with the centers at the same point, the annular bottom plate in the annular cylinder 11 is also a circular ring formed by an outer circle and an inner circle with the centers at the same point, a three-dimensional outer cylinder is formed between the outer circles of the two circular rings, and a three-dimensional inner cylinder is also formed between the inner circles of the two circular rings. The edge of the outer circle of the piston outer ring vertical plate is vertical to the edge of the outer circle of the annular piston bottom plate, the edge of the inner circle of the piston inner ring vertical plate is vertical to the edge of the inner circle of the annular piston bottom plate, and the vertical heights of the piston outer ring vertical plate and the piston inner ring vertical plate are kept equal. In the vertical height range of the piston outer ring vertical plate and the piston inner ring vertical plate, a hollow annular cylinder is formed among the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate. The annular column is matched with an annular bottom plate, an outer annular vertical plate and an inner annular vertical plate in the annular cylinder body 11 to form an annular groove, and a closed space can be formed between the annular column and the annular groove and is used for filling hydraulic liquid. The annular piston 12 is movable in an annular vertical track formed by the annular groove under the urging of the hydraulic fluid. It can be understood that, the annular cylinder 11 and the annular piston 12 designed in a circular ring shape have more uniform internal stress, can bear larger pressure, and can improve the stability and the safety of the annular hydraulic cylinder.
Further, in one embodiment provided herein, the annular piston bottom plate is provided with through holes for hydraulic fluid injection and drainage.
It should be noted that, in the specific operation of the annular hydraulic cylinder 100, a sealed space may be formed between the annular cylinder 11 and the annular piston 12. The annular piston 12 is raised by pressure generated by injecting hydraulic fluid into the annular cylinder 11. When hydraulic fluid is discharged from the annular cylinder 11, the pressure in the annular cylinder 11 decreases, and the annular piston 12 performs a lowering motion. In a particular implementation, through holes for the injection and discharge of hydraulic liquid are provided in the annular piston bottom plate in order to avoid an adverse effect on the overall pressure resistance of the annular cylinder 11.
Specifically, in a specific implementation mode provided by the present application, an annular ring is disposed outside the annular piston bottom plate and is used for processing a chamfer.
It should be noted that, through stress mechanical analysis of the pressurization test, the maximum stress point of the stress can be found to be concentrated in the area where the inner angle and the outer angle are located. This application is for strengthening annular piston's compressive capacity, is provided with the annular ring in the annular piston bottom plate outside. In consideration of the strength enhancing effect and the production cost, 2 annular rings may be provided here. The annular ring can enhance the strength of the position, and can prevent the steel material of the position of the annular piston 12 from becoming thin and weakened when the chamfer is processed. Preferably, in order to enhance the overall pressure resistance of the annular hydraulic cylinder 100, an annular ring may be further disposed outside the annular bottom plate of the annular cylinder 11, so as to enhance the pressure resistance of the annular cylinder 11.
Further, in a specific embodiment provided by the present application, a plurality of annular grooves are disposed on the outer side of the piston outer ring vertical plate and the outer side of the piston inner ring vertical plate, and are used for installing sealing strips.
It can be understood that, in the occasion of constructing the closed space, the sealing strip can effectively ensure the sealing effect of the closed space. In the present application, a closed space needs to be established between the annular cylinder 11 and the annular piston 12 for storing hydraulic liquid. At this time, the sealing property of the closed space can be improved by adding the sealing strip. In order to prevent the sealing strip from sliding or deviating under the action of internal and external force to influence the sealing effect, an annular groove can be arranged at the position where the sealing strip is installed, and the number of the grooves can be set according to actual needs. According to the bearing capacity of actual design, sealing strips are required to be arranged on the outer side of the piston outer ring vertical plate and the outer side of the piston inner ring vertical plate, and a plurality of annular grooves can be simultaneously formed in the outer side of the piston outer ring vertical plate and the outer side of the piston inner ring vertical plate. It is apparent that the pressure resistance of the annular hydraulic cylinder 100 can be further improved by providing a groove for mounting a seal.
Specifically, in a specific embodiment provided by the present application, the annular piston 12 is further provided with a rib plate;
the rib plates are vertically arranged on the annular piston bottom plate and are vertically connected with the piston outer ring vertical plate and the piston inner ring vertical plate;
and the rib plate is provided with a fixing hole matched with the fixing column.
It can be understood that the annular hydraulic cylinder 100 is mainly used for supporting columns such as independent columns in construction of bridges and the like, and has extremely high requirements on safety. The safety of the annular hydraulic cylinder 100 is mainly reflected in the pressure resistance. In the present application, considering that the external force applied to the annular piston bottom plate of the annular piston 12 is strongest, in order to enhance the overall pressure resistance, the annular piston bottom plate needs to be enhanced. Therefore, the whole pressure resistance can be enhanced by additionally arranging the rib plates on the annular piston bottom plate. The number of the rib plates can be 8, the rib plates are evenly and vertically arranged on the annular piston bottom plate, the annular piston bottom plate is equally divided into 8 areas with equal area, and the rib plates are respectively connected with the piston outer ring vertical plate and the piston inner ring vertical plate. The edge parts of one sides, which are used for supporting the cylinder, between the rib plates, the outer ring vertical plate of the piston and the inner ring vertical plate of the piston are positioned in the same horizontal plane. Preferably, the annular piston bottom plate between the two rib plates is also correspondingly provided with a through hole, and meanwhile, the corresponding rib plate is also provided with a corresponding positioning hole. It should be noted that the through hole and the positioning hole need to be isolated from the outside, so as to ensure that the enclosed space in the whole annular hydraulic cylinder is not damaged. The number and the positions of the through holes and the positioning holes correspond to those of the fixing columns. Preferably, the number of the fixing columns can be selected to be 2, and the fixing columns are symmetrically distributed on the annular bottom plate of the annular cylinder body 11. Correspondingly, the annular piston bottom plate of the annular piston 12 is provided with 2 through holes for the fixed column to pass through, rib plates are arranged at the positions of the through holes, and fixing holes are arranged at the corresponding positions of the rib plates and used for being matched with the fixed column to complete positioning. In particular, the thickness of the rib plate provided with the fixing holes is larger than the diameter of the fixing holes, so that hydraulic fluid is prevented from leaking through the fixing holes in the rib plate, and the pressure resistance of the whole annular hydraulic cylinder 100 is prevented from being affected.
Referring to fig. 2, the present embodiment further provides a method for lifting a bridge with the annular hydraulic cylinder 100.
Specifically, the method for jacking the bridge and the building by using the annular hydraulic cylinder 100 comprises the following specific steps:
s100: fixing the annular hydraulic cylinder 100 on a construction bearing platform;
annular pneumatic cylinder 100 for support post among bridge and the building construction process includes:
an annular cylinder 11;
an annular piston 12 disposed between the inner ring and the outer ring of the annular cylinder 11 and moving relative to the annular cylinder 11 for supporting the column;
wherein, a closed space is formed between the annular cylinder 11 and the annular piston 12 and is used for storing hydraulic liquid;
the annular cylinder body 11 and the annular piston 12 are made of steel materials;
the annular piston 12 moves relative to the annular cylinder 11 and has a first matching state and a second matching state;
in the first matching state, the closed space is filled with hydraulic liquid, and the annular piston 12 is pushed to ascend by the hydraulic liquid;
in the second mating state, the closed space discharges the hydraulic fluid, and the annular piston 12 descends along with the hydraulic fluid;
s200: mounting a sensor on the annular hydraulic cylinder 100;
s300: pressurizing the annular hydraulic cylinder 100 according to the strength of the support column according to the design requirement;
s400: when the measurement value of the sensor is within the specification range, the strut is cast integrally with the annular hydraulic cylinder 100.
It should be noted that, in the conventional displacement measurement method for the independent columns of bridges and buildings, the lateral displacement value of the independent column is qualified within the specification. In practice, a plurality of hydraulic devices are usually placed around the perimeter of the individual columns, each point requiring pressure to ensure interaction with the column. Meanwhile, a sensor is arranged on a supporting point where each hydraulic device is located. Because of the multiple supporting points, the final measurement data is not very accurate, and the whole measurement process is relatively complicated and inconvenient to operate. In the application, the annular hydraulic cylinder supports the pillars of the target construction bodies such as bridges in an integrated supporting mode, and the whole operation process only needs to operate the single annular hydraulic cylinder 100. Because a plurality of sensors are arranged on the same annular hydraulic cylinder 100 platform, the whole deviation condition of the support column can be judged only by comparing the monitoring data of the sensors, the operation is simple and convenient, the accuracy of the test data can be effectively improved, and the working efficiency is improved. In a specific implementation, the annular hydraulic cylinder 100 needs to be fixedly mounted on a construction platform in advance, and then a plurality of sensors are mounted on the annular piston 12 of the annular hydraulic cylinder 100. The specific number of sensors is determined according to the requirements of actual working conditions. After the sensor is mounted, the column and the annular piston 12 are subjected to a corresponding partial fixing operation such as welding, and a part of the inner structure of the column is connected to the annular hydraulic cylinder. The support column is generally a reinforced concrete column with the strength reaching the allowable stress value according to the actual construction requirement. At this time, the annular hydraulic cylinder 100 may be pressurized by filling hydraulic fluid according to a designed pressure value, the pillar is lifted by the annular piston 12 with the increase of the pressure, and the pressurization is stopped when the pressure value reaches a design requirement. And calculating the integral deviation value of the support column according to the monitoring data of the arranged sensor, and when the deviation value is within the design range, fixing the support column, pouring the support column and the annular hydraulic cylinder 100 into a whole, and fixing the support column on the construction bearing platform.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
by adopting the integral support design, the operation steps are simplified, and the accuracy of the measured data is improved.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that there is an element defined as "comprising" … … does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides an annular pneumatic cylinder which characterized in that for support post and detect among bridge and the building work process, include:
an annular cylinder body;
the annular piston is arranged between the inner ring and the outer ring of the annular cylinder body and moves relative to the annular cylinder body and is used for supporting the column;
wherein a closed space is formed between the annular cylinder and the annular piston and is used for storing hydraulic liquid;
the annular cylinder body and the annular piston are made of steel materials;
the annular piston moves relative to the annular cylinder and has a first matching state and a second matching state;
in the first matching state, hydraulic liquid is injected into the closed space and pushes the annular piston to ascend;
in the second mating state, the closed space discharges the hydraulic fluid, and the annular piston descends along with the hydraulic fluid.
2. The annular hydraulic cylinder of claim 1, wherein the annular cylinder block comprises:
an annular base plate;
the outer ring vertical plate and the inner ring vertical plate are respectively and vertically arranged at the outer side edge and the inner side edge of the annular bottom plate;
and an annular groove is formed among the annular bottom plate, the outer ring vertical plate and the inner ring vertical plate and is used for providing a track for the annular piston to move up and down under the action of hydraulic liquid.
3. The annular hydraulic cylinder as claimed in claim 2, wherein the annular bottom plate is vertically provided with a fixing post having a length greater than the maximum travel distance of the annular piston for preventing the annular piston from rotating in the annular groove.
4. The annular hydraulic cylinder according to claim 2, wherein the inner angle at the connection of the annular bottom plate in the annular groove and the outer annular vertical plate and the inner annular vertical plate is a circular arc;
and the R angle of the circular arc is calculated by a stress calculation model.
5. The annular hydraulic cylinder of claim 3, wherein the annular piston comprises:
an annular piston bottom plate;
the piston outer ring vertical plate and the piston inner ring vertical plate are respectively and vertically arranged at the outer side edge and the inner side edge of the annular piston bottom plate;
the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate form an annular convex surface side for bearing pressure generated by hydraulic liquid in the annular groove;
and the annular piston bottom plate, the piston outer ring vertical plate and the piston inner ring vertical plate form an annular concave surface side for supporting the pillar.
6. Annular hydraulic cylinder according to claim 5, characterized in that the annular piston bottom plate is provided with through holes for hydraulic liquid injection and discharge.
7. The annular hydraulic cylinder according to claim 5, wherein the annular piston bottom plate is provided with an annular ring outside for chamfering.
8. The annular hydraulic cylinder according to claim 5, wherein a plurality of annular grooves are formed on the outer side of the piston outer ring vertical plate and the outer side of the piston inner ring vertical plate for installing sealing strips.
9. The annular hydraulic cylinder according to claim 5, wherein the annular piston is further provided with a rib plate;
the rib plates are vertically arranged on the annular piston bottom plate and are vertically connected with the piston outer ring vertical plate and the piston inner ring vertical plate;
and the rib plate is provided with a fixing hole matched with the fixing column.
10. A method for jacking a bridge and a building by using an annular hydraulic cylinder is characterized by comprising the following specific steps:
securing the annular hydraulic cylinder of any one of claims 1-9 to a construction platform;
a sensor is arranged on the annular hydraulic cylinder;
pressurizing the annular hydraulic cylinder according to the strength of the support column and the design requirement;
and when the measurement value of the sensor is within the specification range, the support column and the annular hydraulic cylinder are cast into a whole.
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| CN202111105055.5A CN113772576A (en) | 2021-09-22 | 2021-09-22 | Annular hydraulic cylinder and method for jacking bridge and building by using annular hydraulic cylinder |
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| CN202111105055.5A CN113772576A (en) | 2021-09-22 | 2021-09-22 | Annular hydraulic cylinder and method for jacking bridge and building by using annular hydraulic cylinder |
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Application publication date: 20211210 |