CN112878203A - Lifting beam operation method for synchronously jacking beam body - Google Patents
Lifting beam operation method for synchronously jacking beam body Download PDFInfo
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- CN112878203A CN112878203A CN202110101426.6A CN202110101426A CN112878203A CN 112878203 A CN112878203 A CN 112878203A CN 202110101426 A CN202110101426 A CN 202110101426A CN 112878203 A CN112878203 A CN 112878203A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention discloses a lifting beam operation method for synchronously jacking a beam body, belonging to the technical field of bridge construction, and comprising a jacking mechanism, wherein the lifting beam operation method for synchronously jacking the beam body is operated by the jacking mechanism, the jacking mechanism comprises a plurality of pier bodies, pouring grooves are formed in the upper sides of the pier bodies, the number of the pouring grooves is four, the four pouring grooves are distributed in a rectangular shape, foundation bolts are arranged in the pouring grooves, the upper ends of the foundation bolts are positioned on the upper sides of the pouring grooves, concrete is poured in the pouring grooves, a steel base plate is arranged on the upper sides of the pier bodies, four through holes are formed in the edges of the steel base plate, the through holes correspond to the positions of the foundation bolts, the upper sides of the foundation bolts penetrate through the through holes, fixing nuts are screwed at the upper ends of the foundation bolts, a mounting seat is fixedly connected to the upper sides of the steel base plate, and the, make the roof beam body jacking in step, and can avoid the atress inequality, cause inside damage.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to an operation method of a lifting beam for synchronously jacking a beam body.
Background
In recent decades, more and more bridges have been constructed with the continuous development of bridge design, manufacturing and erection techniques and building materials.
In the process of bridge construction, the beam body needs to be jacked up for installation and processing, but all positions of the beam body are stressed unevenly in the existing beam body jacking process, so that internal damage is easily caused, and the beam body is difficult to jack up synchronously due to long length.
Disclosure of Invention
The invention aims to provide a lifting beam operation method for synchronously jacking a beam body, which aims to solve the problems that the inside of the beam body is easily damaged due to uneven stress at each position of the beam body in the existing beam body jacking process and the beam body is not easy to synchronously jack up due to long length of the beam body in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a lifting beam operation method for synchronously jacking a beam body comprises a jacking mechanism, wherein the lifting beam operation method for synchronously jacking the beam body is operated through the jacking mechanism, the jacking mechanism comprises a plurality of pier bodies, pouring grooves are formed in the upper sides of the pier bodies, the number of the pouring grooves is four, the four pouring grooves are distributed in a rectangular manner, foundation bolts are placed in the pouring grooves, the upper ends of the foundation bolts are located on the upper sides of the pouring grooves, concrete is poured in the pouring grooves, steel base plates are placed on the upper sides of the pier bodies, four through holes are formed in the edges of the steel base plates, the through holes correspond to the positions of the foundation bolts, the upper sides of the foundation bolts penetrate through the through holes, fixing nuts are screwed on the upper ends of the foundation bolts, mounting seats are fixedly connected to the upper sides of the steel base plates, the number of the mounting seats is four, the four mounting seats are distributed in a rectangular manner, hydraulic, the hydraulic lifting jack is characterized in that a pressure sensor is connected between the hydraulic lifting jack and the mounting seat through screws, a beam body is placed on the upper side between the multiple pier bodies, a connecting seat is fixedly connected to the lower side of the beam body, the connecting seat is connected with the upper side of the telescopic end of the hydraulic lifting jack through a fastener, the jacking mechanism is connected with a central control computer, the central control computer is connected with a hydraulic pump, a hydraulic hose is connected between the hydraulic pump and the hydraulic lifting jack, an electromagnetic control valve is installed on a pipeline of the hydraulic hose and electrically connected with the central control computer, a displacement sensor and an oil pressure sensor are installed on the hydraulic lifting jack, and the displacement sensor, the oil pressure sensor and the central control computer are connected through wireless communication modules;
the operation method of the jacking mechanism comprises the following steps: the hydraulic pump is started by the central control computer, the electromagnetic control valve is opened, hydraulic oil enters the hydraulic hose and enters the oil cylinder, the hydraulic jacks are jacked upwards, the displacement of the hydraulic jacks are detected by the oil pressure sensor, the difference between the displacement of each hydraulic jack is controlled within a set value by the central control computer in the cylinder extending process of each stroke of the hydraulic jacks, if one hydraulic jack extends the cylinder quickly, the jacking oil inlet circuit of the hydraulic jack is cut off or the hydraulic oil flow rate is reduced, so that the cylinder extending speed is reduced, if one hydraulic jack extends the cylinder slowly, the hydraulic oil flow rate is increased, so that the cylinder extending speed is accelerated, the central control computer monitors the load change condition by the oil pressure sensor, so as to coordinate the load distribution of the whole jacking mechanism, and if the load of a single hydraulic jack has abnormal sudden change, the central control computer automatically stops, and report to the police through alarm lamp and bee calling organ, inform the staff, detect the pressure that hydraulic jack received through pressure sensor, further avoided load distribution uneven, through central control computer control climbing mechanism work makes the roof beam body jacking in step.
Preferably, the foundation bolt is in threaded connection with a sleeve, and the sleeve is located in the pouring groove.
Preferably, the foundation bolt and the fixing nut are screwed and then welded and fixed.
Preferably, a flat pad and an elastic pad are installed between the foundation bolt and the fixing nut, and the flat pad and the elastic pad are located between the fixing nut and the steel base plate.
Preferably, the wireless communication module is a 4G communication chip.
Preferably, a hydraulic throttling check valve is mounted on a pipeline of the hydraulic hose.
Compared with the prior art, the invention has the beneficial effects that:
1) the hydraulic pump is started by the central control computer, the electromagnetic control valve is opened, hydraulic oil enters the hydraulic hose and enters the oil cylinder, the hydraulic jacks are jacked upwards, the displacement of the hydraulic jacks are detected by the oil pressure sensor, the difference between the displacement of each hydraulic jack is controlled within a set value by the central control computer in the cylinder extending process of each stroke of the hydraulic jacks, if one hydraulic jack extends the cylinder quickly, the jacking oil inlet circuit of the hydraulic jack is cut off or the hydraulic oil flow rate is reduced, so that the cylinder extending speed is reduced, if one hydraulic jack extends the cylinder slowly, the hydraulic oil flow rate is increased, so that the cylinder extending speed is accelerated, the central control computer monitors the load change condition by the oil pressure sensor, so as to coordinate the load distribution of the whole jacking mechanism, and if the load of a single hydraulic jack has abnormal sudden change, the central control computer automatically stops, the alarm lamp and the buzzer are used for alarming, workers are informed, and the pressure sensor is used for detecting the pressure applied to the hydraulic jack, so that uneven load distribution is further avoided, the central control computer is used for controlling the jacking mechanism to work, the beam body can be synchronously jacked, and internal damage caused by uneven stress can be avoided;
2) the steel base plate can be stably fixed by pouring and fixing the anchor bolts through concrete and matching with the fixing nuts;
3) through the setting of hydraulic pressure throttle check valve, carry out safety protection, when avoiding central control computer malfunctioning, hydraulic jack does not support the roof beam body, and then reduces the probability that the incident takes place.
Drawings
FIG. 1 is a logic block diagram of the present invention;
FIG. 2 is a schematic view of a connection structure of a jacking mechanism and a beam body according to the present invention;
fig. 3 is a schematic sectional structure view of a jacking mechanism of the invention.
In the figure: the system comprises a central control computer 1, an electromagnetic control valve 2, a hydraulic pump 3, a hydraulic hose 4, a hydraulic throttling check valve 5, a hydraulic jack 6, a displacement sensor 7, an oil pressure sensor 8, a jacking mechanism 9, a pier body 10, a pouring groove 11, concrete 12, foundation bolts 13, sleeves 14, a steel base plate 15, a through hole 16, a fixing nut 17, an installation seat 18, a pressure sensor 19, a connecting seat 20 and a beam body 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-3, the present invention provides a technical solution: a lifting beam operation method for synchronously jacking a beam body comprises a jacking mechanism 9, the lifting beam operation method for synchronously jacking the beam body is operated through the jacking mechanism 9, the jacking mechanism 9 comprises a plurality of pier bodies 10, pouring grooves 11 are formed in the upper sides of the pier bodies 10, the number of the pouring grooves 11 is four, the four pouring grooves 11 are distributed in a rectangular mode, foundation bolts 13 are placed in the pouring grooves 11, the upper ends of the foundation bolts 13 are located on the upper sides of the pouring grooves 11, concrete 12 is poured in the pouring grooves 11 to fix the foundation bolts 13, steel padding plates 15 are placed on the upper sides of the pier bodies 10, four through holes 16 are formed in the edges of the steel padding plates 15, the through holes 16 correspond to the positions of the foundation bolts 13, the upper sides of the foundation bolts 13 penetrate through the through holes 16, fixing nuts 17 are screwed on the upper ends of the foundation bolts 13 to fix the steel padding plates 15, the upper side of the steel base plate 15 is fixedly connected with mounting seats 18, the number of the mounting seats 18 is four, the four mounting seats 18 are distributed in a rectangular shape, hydraulic jacks 6 are mounted on the mounting seats 18, pressure sensors 19 are connected between the hydraulic jacks 6 and the mounting seats 18 through screws and used for detecting loads borne by the hydraulic jacks 6, beam bodies 21 are placed on the upper sides of the multiple pier bodies 10, connecting seats 20 are fixedly connected to the lower sides of the beam bodies 21, the connecting seats 20 are connected with the upper sides of the telescopic ends of the hydraulic jacks 6 through fasteners, the jacking mechanisms 9 are connected with a central control computer 1, the central control computer 1 is connected with a hydraulic pump 3, hydraulic hoses 4 are connected between the hydraulic pump 3 and the hydraulic jacks 6, electromagnetic control valves 2 are mounted on pipelines of the hydraulic hoses 4 and control the on-off of the hydraulic hoses 4, the electromagnetic control valve 2 is electrically connected with the central control computer 1, a displacement sensor 7 and an oil pressure sensor 8 are installed on the hydraulic jack 6, the displacement sensor 7, the oil pressure sensor 8 and the central control computer 1 are connected through a wireless communication module, the displacement sensor 7 detects the displacement (namely the elongation) of the hydraulic jack 6, and the oil pressure sensor 8 monitors the change condition of an oil pressure load;
the operation method of the jacking mechanism 9 comprises the following steps: the hydraulic pump 3 is started by the central control computer 1, the electromagnetic control valve 2 is opened, hydraulic oil enters the hydraulic hose 4 and enters the oil cylinder, so that the hydraulic jacks 6 are jacked upwards, the displacement of the hydraulic jacks 6 is detected by the oil pressure sensor 8, the difference of the displacement of each hydraulic jack 6 is controlled within a set value by the central control computer 1 in the cylinder extending process of each stroke of the hydraulic jacks 6, if one hydraulic jack 6 extends the cylinder faster, the jacking oil inlet circuit of the hydraulic jack 6 is cut off or the flow rate of the hydraulic oil is reduced to reduce the cylinder extending speed, if one hydraulic jack 6 extends the cylinder slower, the flow rate of the hydraulic oil is increased to accelerate the cylinder extending speed, the central control computer 1 monitors the load change condition by the oil pressure sensor 8 to coordinate the load distribution of the whole jacking mechanism 9, if the load of one hydraulic jack 6 has abnormal sudden change, central control computer 1 auto-stop to report to the police through alarm lamp and bee calling organ, inform the staff, detect the pressure that hydraulic jack 6 received through pressure sensor 19, further avoid load distribution uneven, through central control computer 1 control climbing mechanism 9 work, make roof beam body 21 jacking in step.
The foundation bolt 13 is in threaded connection with a sleeve 14, the sleeve 14 is located in the pouring groove 11, and stability of the foundation bolt 13 is improved.
The foundation bolt 13 and the fixing nut 17 are in threaded connection and then are welded and fixed, so that looseness is avoided.
Install flat pad and bullet pad between rag bolt 13 and fixation nut 17, flat pad and bullet pad are located between fixation nut 17 and the steel backing plate 15.
The wireless communication module is a 4G communication chip.
Install hydraulic pressure throttle check valve 5 on the pipeline of hydraulic pressure hose 4, carry out safety protection, when avoiding central control computer 1 malfunctioning, hydraulic jack 6 does not support roof beam body 21, and then reduces the probability that the incident takes place.
The working principle is as follows: the hydraulic pump 3 is started by the central control computer 1, the electromagnetic control valve 2 is opened, hydraulic oil enters the hydraulic hose 4 and enters the oil cylinder, so that the hydraulic jacks 6 are jacked upwards, the displacement of the hydraulic jacks 6 is detected by the oil pressure sensor 8, the difference of the displacement of each hydraulic jack 6 is controlled within a set value by the central control computer 1 in the cylinder extending process of each stroke of the hydraulic jacks 6, if one hydraulic jack 6 extends the cylinder faster, the jacking oil inlet circuit of the hydraulic jack 6 is cut off or the flow rate of the hydraulic oil is reduced to reduce the cylinder extending speed, if one hydraulic jack 6 extends the cylinder slower, the flow rate of the hydraulic oil is increased to accelerate the cylinder extending speed, the central control computer 1 monitors the load change condition by the oil pressure sensor 8 to coordinate the load distribution of the whole jacking mechanism 9, if the load of one hydraulic jack 6 has abnormal sudden change, central control computer 1 auto-stop to report to the police through alarm lamp and bee calling organ, inform the staff, detect the pressure that hydraulic jack 6 received through pressure sensor 19, further avoid the load distribution uneven, thereby, control climbing mechanism 9 work through central control computer 1, make roof beam body 21 jacking in step, and can avoid the atress inequality, cause the internal damage.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for operating a lifting beam for synchronously jacking a beam body comprises a jacking mechanism (9), and is characterized in that: the lifting beam operation method for synchronously jacking the beam body is operated through a jacking mechanism (9), the jacking mechanism (9) comprises a plurality of pier bodies (10), pouring grooves (11) are formed in the upper sides of the pier bodies (10), the number of the pouring grooves (11) is four, the four pouring grooves (11) are distributed in a rectangular shape, foundation bolts (13) are placed in the pouring grooves (11), the upper ends of the foundation bolts (13) are located on the upper sides of the pouring grooves (11), concrete (12) is poured in the pouring grooves (11), steel padding plates (15) are placed on the upper sides of the pier bodies (10), four through holes (16) are formed in the edges of the steel padding plates (15), the through holes (16) correspond to the foundation bolts (13), the through holes (16) are penetrated through the upper sides of the foundation bolts (13), and fixing nuts (17) are screwed on the upper ends of the foundation bolts (13), the steel backing plate is characterized in that the upper side of the steel backing plate (15) is fixedly connected with mounting seats (18), the number of the mounting seats (18) is four, the mounting seats (18) are distributed in a rectangular shape, hydraulic jacks (6) are mounted on the mounting seats (18), pressure sensors (19) are connected between the hydraulic jacks (6) and the mounting seats (18) through screws, a plurality of beam bodies (21) are placed on the upper sides between the pier bodies (10), connecting seats (20) are fixedly connected to the lower sides of the beam bodies (21), the connecting seats (20) are connected with the upper sides of the telescopic ends of the hydraulic jacks (6) through fasteners, a jacking mechanism (9) is connected with a central control computer (1), the central control computer (1) is connected with a hydraulic pump (3), and a hydraulic hose (4) is connected between the hydraulic pump (3) and the hydraulic jacks (6), an electromagnetic control valve (2) is mounted on a pipeline of the hydraulic hose (4), the electromagnetic control valve (2) is electrically connected with the central control computer (1), a displacement sensor (7) and an oil pressure sensor (8) are mounted on the hydraulic jack (6), and the displacement sensor (7), the oil pressure sensor (8) and the central control computer (1) are connected through a wireless communication module;
the operation method of the jacking mechanism (9) comprises the following steps: the hydraulic pump (3) is started through the central control computer (1), the electromagnetic control valve (2) is opened, hydraulic oil enters the hydraulic hose (4) and enters the oil cylinder, the hydraulic jacks (6) are jacked upwards, the displacement of the hydraulic jacks (6) is detected through the oil pressure sensor (8), in the process of extending the hydraulic jacks (6) in each stroke, the difference of the displacement of each hydraulic jack (6) is controlled within a set value through the central control computer (1), if one hydraulic jack (6) extends the cylinder faster, the jacking oil inlet circuit of the hydraulic jack (6) is cut off or the flow rate of the hydraulic oil is reduced to reduce the cylinder extending speed, if one hydraulic jack (6) extends the cylinder slower, the flow rate of the hydraulic oil is increased to accelerate the cylinder extending speed, the central control computer (1) monitors the load change condition through the oil pressure sensor (8), be used for coordinating the load distribution of whole climbing mechanism (9), if the load of single hydraulic jack (6) has unusual sudden change, central control computer (1) automatic shutdown to report to the police through alarm lamp and bee calling organ, inform the staff, detect the pressure that hydraulic jack (6) received through pressure sensor (19), further avoided the load distribution uneven, through central control computer (1) control climbing mechanism (9) work makes roof beam body (21) jacking in step.
2. The method of operating a landing beam for the synchronized jacking of a beam of claim 1, wherein: the foundation bolt (13) is in threaded connection with a sleeve (14), and the sleeve (14) is located in the pouring groove (11).
3. The method of operating a landing beam for the synchronized jacking of a beam of claim 1, wherein: the foundation bolt (13) and the fixing nut (17) are in threaded connection and then are welded and fixed.
4. The method of operating a landing beam for the synchronized jacking of a beam of claim 1, wherein: install flat pad and bullet pad between rag bolt (13) and fixation nut (17), flat pad and bullet pad are located between fixation nut (17) and steel backing plate (15).
5. The method of operating a landing beam for the synchronized jacking of a beam of claim 1, wherein: the wireless communication module is a 4G communication chip.
6. The method of operating a landing beam for the synchronized jacking of a beam of claim 1, wherein: and a hydraulic throttling check valve (5) is mounted on the pipeline of the hydraulic hose (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101426.6A CN112878203A (en) | 2021-01-26 | 2021-01-26 | Lifting beam operation method for synchronously jacking beam body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101426.6A CN112878203A (en) | 2021-01-26 | 2021-01-26 | Lifting beam operation method for synchronously jacking beam body |
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| CN202110101426.6A Pending CN112878203A (en) | 2021-01-26 | 2021-01-26 | Lifting beam operation method for synchronously jacking beam body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000727A (en) * | 2021-11-22 | 2022-02-01 | 山东天齐建筑科技有限公司 | Translation device for one-way hydraulic jacking, clasping and fixing of guide rail |
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| CN110644381A (en) * | 2019-10-12 | 2020-01-03 | 杭州交投科技工程有限公司 | Bridge jacking method |
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| CN114000727A (en) * | 2021-11-22 | 2022-02-01 | 山东天齐建筑科技有限公司 | Translation device for one-way hydraulic jacking, clasping and fixing of guide rail |
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