CN111042008A - Over-arch active control leveling anchoring device assembly for boom replacement and method for boom replacement - Google Patents
Over-arch active control leveling anchoring device assembly for boom replacement and method for boom replacement Download PDFInfo
- Publication number
- CN111042008A CN111042008A CN201911259360.2A CN201911259360A CN111042008A CN 111042008 A CN111042008 A CN 111042008A CN 201911259360 A CN201911259360 A CN 201911259360A CN 111042008 A CN111042008 A CN 111042008A
- Authority
- CN
- China
- Prior art keywords
- leveling
- joint structure
- pin joint
- suspender
- arch
- 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
- 238000004873 anchoring Methods 0.000 title claims description 60
- 238000000034 method Methods 0.000 title claims description 48
- 238000012544 monitoring process Methods 0.000 claims description 31
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
An arch active control leveling anchor assembly for boom replacement comprising two sets of arch active control leveling anchors, each set of arch active control leveling anchor comprising: leveling beams, 7 pin joint structures, 2 electric cylinders I and II, upper clamps I and II, and upper and lower high-strength screw rods; the lower clamps I and II, the inclination angle sensor, the force sensors I and II and the contact sensor are arranged on the lower clamp; in a working state, two sides of the upper clamp I and the lower clamp I and two sides of the upper clamp II and the lower clamp II are respectively connected with 1 electric cylinder; the two sides of the upper clamp I and the lower clamp II are respectively connected through high-strength screws; be provided with contact sensor in I side of last anchor clamps, set up force sensor I, force sensor II and force sensor III respectively on electronic jar I, electronic jar II and electronic jar III, leveling roof beam top face is provided with inclination sensor, adopts this to encircle the initiative control leveling anchor subassembly and implements the jib and change, can realize standardized construction, and the ann tears the progress fast open, and fail safe nature is strong.
Description
Technical Field
The invention relates to a bridge construction machine and a construction method, in particular to an on-arch active control leveling anchoring device assembly for replacing a concrete arch bridge hanging rod and a method for replacing the hanging rod.
Background
At present, most of concrete arch bridge lifting rod replacement cable force conversion devices are mainly temporary hanging devices, and the upper portion of an arch needs to be provided with cushion blocks in the modes of bar planting, steel bar net binding and concrete pouring, so that the purposes of leveling the arch, facilitating the arrangement of a cross beam and resisting sliding are achieved. The disadvantages are as follows: the main arch ring is damaged by the steel bar planting drill hole, the engineering operation strength is high, the poured concrete can be used only when the poured concrete needs to be cured to the designed strength, the cushion blocks cannot be used in a circulating way, the dismantling and recovering operation progress is slow, the period is long, and the construction cost is high;
secondly, the anti-slippage safety in the replacement process is monitored by manual offline in the prior art, the feedback control cannot be performed in time, the safety and reliability are poor, and the period is long.
Disclosure of Invention
The invention aims to: an over-arch active control leveling anchor assembly for concrete arch bridge boom replacement and a method for boom replacement thereof are provided; the arch active control leveling anchoring device assembly has the advantages that in the cable force conversion process of replacing the suspender, an original structure stress system is not changed, the influence on the original structure stress is small, the monitoring and the active control of the arch leveling anchoring device can be realized, the manual operation strength is low, the construction installation and disassembly progress is fast, the original concrete main arch ring is not damaged, the arch active control leveling anchoring device assembly can be used circularly, the modular design is convenient, the standardized construction is realized, the work efficiency is high, the construction cost is low, and therefore the problems in the prior art are solved.
The technical scheme for solving the problems is as follows: an on-arch active control leveling anchor assembly for boom replacement, characterized by: this an encircle initiative control leveling anchor assembly on for jib is changed includes two sets of encircles initiative control leveling anchor assembly, and two sets of encircles initiative control leveling anchor assembly set up respectively in old jib one side, encircle initiative control leveling anchor assembly and include: the device comprises a leveling beam, a pin joint structure I, a tilt angle sensor, a pin joint structure II, a force sensor I, an electric cylinder I, a pin joint structure III, an upper clamp I, an upper clamp II, a pin joint structure IV, a pin joint structure V, 2 pairs of high-strength screw rods, a force sensor II, 2 electric cylinders II, a force sensor III, 2 electric cylinders III, a lower clamp I, a pin joint structure VI, a lower clamp II, a pin joint structure VII, 2 pairs of lower high-strength screw rods and a contact sensor;
in a working state, two sides of an upper clamp I and two sides of a lower clamp I are respectively connected with 1 electric cylinder II through a pin joint structure IV and a pin joint structure VI; the two sides of the upper clamp II and the lower clamp II are respectively connected with 1 electric cylinder III through a pin joint structure V and a pin joint structure VII;
the two sides of the upper clamp I and the upper clamp II are respectively connected through a high-strength screw rod, and the two sides of the lower clamp I and the lower clamp II are respectively connected through a lower high-strength screw rod; the electric cylinder II and the electric cylinder III are driven to generate clamping force among the upper clamp I, the lower clamp I, the upper clamp II and the lower clamp II and a concrete main arch ring, so that friction force resisting downward sliding is generated on a contact surface of the upper clamp I and the concrete main arch ring, a contact sensor is arranged on the side surface of the upper clamp I, and the electric cylinder II and the electric cylinder III are respectively provided with a force sensor II and a force sensor III for monitoring the anti-sliding state and the clamping force value of the clamps in the process of replacing a suspender on line;
one end of the leveling beam is connected with the upper clamp II through a pin joint structure II, the other end of the leveling beam is connected with one end of the electric cylinder I through a pin joint structure I, the other end of the electric cylinder I is connected with the upper clamp I through a pin joint structure III, the leveling beam, the high-strength screw and the electric cylinder I form a stable triangular structure, an inclination angle sensor used for monitoring the leveling condition of the top surface of the leveling beam in the process of replacing a suspender on line is arranged on the top surface of the leveling beam, and a force sensor I used for monitoring the leveling force value in the process of replacing the suspender on line is arranged on the electric cylinder.
The further technical scheme of the on-arch active control leveling anchoring device assembly for boom replacement is as follows: the leveling beam of the arch active control leveling anchoring device comprises a rectangular leveling beam body and connecting lug plates which are positioned at two ends of the leveling beam body and are connected with the leveling beam body into a whole, and pin holes are reserved in the connecting lug plates.
The pin joint structure I, the pin joint structure III, the pin joint structure IV, the pin joint structure V, the pin joint structure VI and the pin joint structure VII of the arch active control leveling anchoring device are all formed by assembling a cuboid-shaped base plate and a cylindrical pin shaft, threaded holes are reserved in the left side surface and the right side surface of the base plate and are in threaded connection with the cylindrical pin shaft, and bolt holes are reserved in the upper side surface and the lower side surface of the base plate and are convenient to connect with an upper flange of an electric cylinder.
The pin joint structure II of the arch active control leveling anchoring device is composed of a cylindrical pin shaft.
Another related technical scheme is as follows: the invention relates to a method for replacing a concrete arch bridge lifting rod, which is a method for replacing the concrete arch bridge lifting rod by adopting an arch-on active control leveling anchoring device assembly for replacing a lifting rod, and comprises the following steps:
A. installing an over-the-arch active control leveling anchor assembly for boom replacement:
symmetrically installing a set of arch upper active control leveling anchoring devices on two sides of the old suspender of the main arch ring;
B. installing an upper shoulder pole beam, a lower shoulder pole beam, a tensioning jack and a temporary suspender:
vertically arranging an upper shoulder pole beam on a leveling beam of an arch active control leveling anchoring device, sequentially penetrating four temporary suspenders through a tensioning jack, the upper shoulder pole beam and a lower shoulder pole beam from top to bottom respectively, anchoring the upper end of the upper shoulder pole beam through an upper locker, and anchoring the lower end of the upper shoulder pole beam through a lower locker;
C. stretching test:
the temporary suspender is slowly tensioned step by driving the tensioning jack to test tensioning, the connection safety and the stable load holding capacity of each part of the actively controlled leveling anchoring device assembly on the arch are checked, and the lower shoulder pole beam is ensured to be closely attached to the bottom of the suspender beam;
D. tensioning the temporary suspender, dismantling the old suspender:
when the old suspender is formally dismantled, the old suspender is unloaded step by step, the temporary suspender is synchronously tensioned step by step, the cable force of the old suspender is converted to the arch to actively control and level the anchoring device assembly, the cable force system conversion is completed, and the old suspender is cut off and dismantled;
E. installing a new suspender, tensioning and anchoring the new suspender step by step, and completing the conversion of a cable force system to the new suspender:
after the new suspender is installed, the new suspender is tensioned step by step, the temporary suspender is synchronously and gradually tensioned, the cable force of the on-arch active control leveling anchoring device assembly is converted to the new suspender, the cable force system conversion is completed, and the new suspender is anchored after being tensioned in place;
F. removing the on-arch active control leveling anchoring device assembly for replacing the suspender and transferring the on-arch active control leveling anchoring device assembly to the next old suspender;
G. and D, repeating the step A to the step F when each suspender is replaced, and completing the replacement of other suspenders.
A further technical scheme of the method for replacing the concrete arch bridge hanging rod is as follows: in a step a of installing an on-arch active control leveling anchor assembly for boom replacement, the on-arch active control leveling anchor comprises: the device comprises a leveling beam, a pin joint structure I, a tilt angle sensor, a pin joint structure II, a force sensor I, an electric cylinder I, a pin joint structure III, an upper clamp I, an upper clamp II, a pin joint structure IV, a pin joint structure V, 2 pairs of high-strength screw rods, a force sensor II, 2 electric cylinders II, a force sensor III, 2 electric cylinders III, a lower clamp I, a pin joint structure VI, a lower clamp II, a pin joint structure VII, 2 pairs of lower high-strength screw rods and a contact sensor;
during installation, two sides of an upper clamp I and two sides of a lower clamp I are respectively connected with 1 electric cylinder II through a pin joint structure IV and a pin joint structure VI; the two sides of the upper clamp II and the lower clamp II are respectively connected with 1 electric cylinder III through a pin joint structure V and a pin joint structure VII;
the two sides of the upper clamp I and the upper clamp II are respectively connected through a high-strength screw rod, and the two sides of the lower clamp I and the lower clamp II are respectively connected through a lower high-strength screw rod; the clamping force is generated between the upper clamp I, the lower clamp I, the upper clamp II and the lower clamp II and a concrete main arch ring by driving the electric cylinder II and the electric cylinder III, so that the friction force resisting the downward sliding is generated on the contact surface of the upper clamp I and the concrete main arch ring, a contact sensor is arranged on the side surface of the upper clamp I, the electric cylinder II and the electric cylinder III are respectively provided with a force sensor II and a force sensor III for monitoring the anti-sliding state and the clamping force value of the clamp in the process of replacing a suspender on line, the electric cylinder II or the electric cylinder III is driven according to the monitoring feedback result to control the clamping force of the clamp to meet the anti-sliding safety requirement, and the arching active control anchoring force in the process of replacing the suspender;
one end of a leveling beam is connected with an upper clamp II through a pin joint structure II, the other end of the leveling beam is connected with one end of an electric cylinder I through a pin joint structure I, the other end of the electric cylinder I is connected with an upper clamp I through a pin joint structure III, so that the leveling beam, a high-strength screw and the electric cylinder I form a stable triangular structure, an inclination angle sensor used for monitoring the leveling condition of the top surface of the leveling beam in the process of replacing a suspender on line is arranged on the top surface of the leveling beam, a force sensor I used for monitoring the leveling force value in the process of replacing the suspender on line is arranged on the electric cylinder I, the electric cylinder I is driven according to a monitoring feedback result to control the leveling force value and a rotation angle to meet the leveling safety requirement.
Due to the adoption of the technical scheme, the invention discloses an arch-up active control leveling anchoring device assembly for replacing a concrete arch bridge lifting rod and a method for replacing the lifting rod, which have the following beneficial effects:
the method has the advantages of realizing standardized construction, fast mounting and dismounting progress, high work efficiency and low construction cost:
the arch active control leveling anchoring device of the arch active control leveling anchoring device assembly for replacing the concrete arch bridge hanging rod is assembled into a whole in a pin joint structure mode, can replace a concrete leveling anchoring cushion block in the prior art, can modularly design each part of the device, is convenient to replace and install and remove, can be used for replacing hanging rods at different parts of the same bridge and replacing hanging rods at different parts of other bridges of the same type, can realize standardized construction, and has the advantages of quick installation and removal progress, high work efficiency and low construction cost; the problems that in the prior art, the cushion block cannot be used in a turnover mode, the dismantling and recovering operation progress is slow, the period is long, and the construction cost is high are well solved.
Two, change cable power conversion in-process at the jib, do not change original structure atress system, it is less to original structure atress influence, and manual work intensity is little, and the cycle is short, and construction quality is convenient for control:
the arch active control leveling anchoring device of the arch active control leveling anchoring device component for replacing the concrete arch bridge hanging rod realizes anchoring by clamping the main arch ring by an upper clamp and a lower clamp, has no damage to the original concrete main arch ring, small manual operation intensity, short period and convenient control of construction quality.
In the cable force conversion process of the suspender replacement, the active control leveling and the active control anchoring on the arch can be realized in the process, the on-line monitoring and the timely feedback control are realized, and the safety and the reliability are strong:
in the prior art, the anti-slippage safety in the replacement process of the suspender is monitored manually in an off-line manner, the feedback control cannot be carried out in time, the safety and reliability are poor, and the period is long;
according to the invention, one end of a leveling beam of an arch active control leveling anchoring device assembly for replacing a concrete arch bridge lifting rod is connected with an upper clamp II through a pin joint structure II, the other end of the leveling beam is connected with one end of an electric cylinder I through a pin joint structure I, the other end of the electric cylinder I is connected with an upper clamp I through a pin joint structure III, the leveling beam, a high-strength screw and the electric cylinder I generate a stable triangular structure, an inclination angle sensor is arranged on the top surface of the leveling beam, a force sensor I is arranged on the electric cylinder I, the leveling condition and the leveling force value of the top surface of the leveling beam in the replacement process of a lifting rod are monitored on line, the electric cylinder I is driven to control the leveling force value and the rotating angle to meet the leveling safety requirement according to the monitoring feedback result, the arch active control leveling in the process;
meanwhile, a contact sensor is arranged on the side face of the upper clamp I, a force sensor II and a force sensor III are respectively arranged on the electric cylinder II and the electric cylinder III, the anti-slipping condition and the clamping force value of the clamp in the process of replacing the suspender are monitored on line, the electric cylinder II or the electric cylinder III is driven according to a monitoring feedback result to control the clamping force of the clamp to meet the anti-slipping safety requirement, active control anchoring is achieved in arching in the process, real-time monitoring and feedback control are achieved, safety and reliability are high, and the period is short.
The technical features of an arch active control leveling anchor assembly for concrete arch bridge boom replacement and a method for replacing a boom thereof according to the present invention will be further described with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of the overall construction and installation of an over-arch active control leveling anchor assembly for concrete arch bridge boom replacement according to the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is an enlarged view of section B of FIG. 1 (i.e., a schematic view of a set of over-arch active control leveling anchors);
fig. 4-6 are schematic structural views of leveling beams of the active control leveling anchoring device on the arch:
FIG. 4: front view, fig. 5: top view of fig. 4, fig. 6: a perspective view;
fig. 7 to 8 are schematic structural diagrams of a pin joint structure i, a pin joint structure iii, a pin joint structure iv, a pin joint structure v, a pin joint structure vi and a pin joint structure vii of the arch active control leveling anchoring device:
FIG. 7: perspective view, fig. 8: fig. 7 is a front view.
In the figure:
1-upper locking device, 2-tensioning jack, 3-upper shoulder pole beam, 4-leveling beam, 401-leveling beam body, 402-connecting lug plate, 403-pin hole;
5-pin joint structure I, 501-pin shaft, 502-backing plate, 503-threaded hole and 504-bolt hole;
6-tilt angle sensor, 7-pin joint structure II, 8-force sensor I, 9-electric cylinder I, 10-pin joint structure III, 11-upper clamp I, 12-upper clamp II, 13-pin joint structure IV, 14-pin joint structure V, 15-high strength screw rod, 16-force sensor II, 17-electric cylinder II, 18-force sensor III, 19-electric cylinder III, 20-lower clamp I, 21-pin joint structure VI, 22-lower clamp II, 23-pin joint structure VII, 24-lower high strength screw rod, 25-concrete main arch ring, 26-old suspender, 27-bridge deck, 28-temporary suspender, 29-suspender beam, 30-lower carrying pole beam, 31-lower locker and 32-contact sensor.
Detailed Description
The first embodiment is as follows:
an over-the-arch active control leveling anchor assembly for boom replacement.
As shown in fig. 1 to 3, the arch active control leveling anchor assembly for boom replacement includes two sets of arch active control leveling anchor devices, the two sets of arch active control leveling anchor devices are respectively disposed on one side of an old boom, and the arch active control leveling anchor device includes: the device comprises a leveling beam 4, a pin joint structure I5, an inclination angle sensor 6, a pin joint structure II 7, a force sensor I8, an electric cylinder I9, a pin joint structure III 10, an upper clamp I11, an upper clamp II 12, a pin joint structure IV 13, a pin joint structure V14, 2 high-strength screw rods 15, a force sensor II 16, 2 electric cylinders II 17, a force sensor III 18, 2 electric cylinders III 19, a lower clamp I20, a pin joint structure VI 21, a lower clamp II 22, a pin joint structure VII 23, 2 lower high-strength screw rods 24 and a contact sensor 32;
in a working state, two sides of an upper clamp I11 and two sides of a lower clamp I20 are respectively connected with 1 electric cylinder II 17 through a pin joint structure IV 13 and a pin joint structure VI 21; the two sides of the upper clamp II 12 and the lower clamp II 22 are respectively connected with 1 electric cylinder III 19 through a pin joint structure V14 and a pin joint structure VII 23;
the two sides of the upper clamp I and the upper clamp II are respectively connected through an upper high-strength screw 15, and the two sides of the lower clamp I and the lower clamp II are respectively connected through a lower high-strength screw 24; the clamping force is generated between the upper clamp I, the lower clamp I, the upper clamp II and the lower clamp II and the concrete main arch ring 25 by driving the electric cylinder II 17 and the electric cylinder III 19, so that the friction force resisting the downward sliding is generated on the contact surface of the upper clamp I11, a contact sensor 32 is arranged on the side surface of the upper clamp I11, a force sensor II 16 and a force sensor III 18 for monitoring the anti-sliding state and the clamping force value of the clamp in the process of replacing the suspender on line are respectively arranged on the electric cylinder II and the electric cylinder III, the electric cylinder II or the electric cylinder III is driven according to the monitoring feedback result to control the clamping force of the clamp to meet the anti-sliding safety requirement, and the active control of the upward arching and the anchoring in the process of replacing the suspender is;
one end of a leveling beam 4 is connected with an upper clamp II 12 through a pin joint structure II 7, the other end of the leveling beam 4 is connected with one end of an electric cylinder I9 through a pin joint structure I5, the other end of the electric cylinder I9 is connected with an upper clamp I11 through a pin joint structure III 10, the leveling beam 4, an upper high-strength screw 15 and the electric cylinder I9 form a stable triangular structure, an inclination angle sensor 6 used for monitoring the leveling condition of the top surface of the leveling beam in the process of replacing a suspender on line is arranged on the top surface of the leveling beam 4, a force sensor I8 used for monitoring the leveling force value in the process of replacing the suspender on line is arranged on the electric cylinder I9, the electric cylinder I is driven according to a monitoring feedback result to control the leveling force value and a rotation angle to meet leveling safety requirements.
As shown in fig. 4-6, the leveling beam 4 of the arch active control leveling anchoring device includes a rectangular leveling beam body 401 and connecting ear plates 402 located at two ends of the leveling beam body 401 and integrally connected with the leveling beam body, pin holes 403 are reserved on the connecting ear plates 402, and the leveling beam 4 is a casting or is made of steel plates by welding.
As shown in fig. 7-8, the pin joint structure i 5, the pin joint structure iii 10, the pin joint structure iv 13, the pin joint structure v 14, the pin joint structure vi 21 and the pin joint structure vii 23 of the arch active control leveling anchoring device are formed by assembling a rectangular parallelepiped-shaped base plate 502 and a cylindrical pin shaft 501, the left and right side faces of the base plate 502 are provided with screw holes for screw connection with the cylindrical pin shaft 501, and the upper and lower side faces of the base plate 502 are provided with bolt holes for connection with an upper flange of an electric cylinder; the pin joint structure I5, the pin joint structure III 10, the pin joint structure IV 13, the pin joint structure V14, the pin joint structure VI 21 and the pin joint structure VII 23 are integrally cast.
The pin joint structure II 7 of the arch active control leveling anchoring device is formed by a cylindrical pin shaft, and the pin joint structure II 7 is an integral casting.
Example two
A method for replacing a concrete arch bridge hanging rod comprises the following steps:
the method for realizing the replacement of the concrete arch bridge hanging rod by adopting the arch upper active control leveling anchoring device component for replacing the hanging rod comprises the following steps:
A. installing an over-the-arch active control leveling anchor assembly for boom replacement:
symmetrically installing a set of arch upper active control leveling anchoring devices on two sides of the old suspender of the main arch ring;
B. installing an upper shoulder pole beam, a lower shoulder pole beam, a tensioning jack and a temporary suspender:
an upper shoulder pole beam 3 is vertically arranged on a leveling beam 4 of an arch active control leveling anchoring device, four temporary suspenders 28 respectively penetrate through a tensioning jack 2, the upper shoulder pole beam 3 and a lower shoulder pole beam 30 from top to bottom in sequence, the upper end of the upper shoulder pole beam is anchored through an upper locker 1, and the lower end of the upper shoulder pole beam is anchored through a lower locker 31;
C. stretching test:
the temporary suspender 28 is tensioned by driving the tensioning jack 2 to slowly perform trial tensioning step by step, the connection safety and the stable load holding capacity of each part of the on-arch active control leveling anchoring device assembly are checked, and the lower shoulder pole beam is ensured to be closely attached to the bottom of the suspender beam 29;
D. tensioning the temporary suspender, dismantling the old suspender:
when the old suspender is formally dismantled, the old suspender is unloaded step by step, the temporary suspender is synchronously tensioned step by step, the cable force of the old suspender is converted to the arch to actively control and level the anchoring device assembly, the cable force system conversion is completed, and the old suspender is cut off and dismantled;
E. installing a new suspender, tensioning and anchoring the new suspender step by step, and completing the conversion of a cable force system to the new suspender:
after the new suspender is installed, the new suspender is tensioned step by step, the temporary suspender is synchronously and gradually tensioned, the cable force of the on-arch active control leveling anchoring device assembly is converted to the new suspender, the cable force system conversion is completed, and the new suspender is anchored after being tensioned in place;
F. removing the on-arch active control leveling anchoring device assembly for replacing the suspender and transferring the on-arch active control leveling anchoring device assembly to the next old suspender;
G. and D, repeating the step A to the step F when each suspender is replaced, and completing the replacement of other suspenders.
In a step a of installing an on-arch active control leveling anchor assembly for boom replacement, the on-arch active control leveling anchor comprises: the device comprises a leveling beam 4, a pin joint structure I5, an inclination angle sensor 6, a pin joint structure II 7, a force sensor I8, an electric cylinder I9, a pin joint structure III 10, an upper clamp I11, an upper clamp II 12, a pin joint structure IV 13, a pin joint structure V14, 2 pairs of high-strength screw rods 15, a force sensor II 16, 2 electric cylinders II 17, a force sensor III 18, 2 electric cylinders III 19, a lower clamp I20, a pin joint structure VI 21, a lower clamp II 22, a pin joint structure VII 23, 2 pairs of lower high-strength screw rods 24 and a contact sensor 32;
during installation, two sides of an upper clamp I11 and two sides of a lower clamp I20 are respectively connected with 1 electric cylinder II 17 through a pin joint structure IV 13 and a pin joint structure VI 21; the two sides of the upper clamp II 12 and the lower clamp II 22 are respectively connected with 1 electric cylinder III 19 through a pin joint structure V14 and a pin joint structure VII 23;
the two sides of the upper clamp I and the upper clamp II are respectively connected through an upper high-strength screw 15, and the two sides of the lower clamp I and the lower clamp II are respectively connected through a lower high-strength screw 24; the clamping force is generated between the upper clamp I, the lower clamp I, the upper clamp II and the lower clamp II and the concrete main arch ring 25 by driving the electric cylinder II 17 and the electric cylinder III 19, so that the friction force resisting the downward sliding is generated on the contact surface of the upper clamp I11, a contact sensor 32 is arranged on the side surface of the upper clamp I11, a force sensor II 16 and a force sensor III 18 for monitoring the anti-sliding state and the clamping force value of the clamp in the process of replacing the suspender on line are respectively arranged on the electric cylinder II and the electric cylinder III, the electric cylinder II or the electric cylinder III is driven according to the monitoring feedback result to control the clamping force of the clamp to meet the anti-sliding safety requirement, and the active control of the anchoring force on the arch in the process of replacing the suspender is realized;
one end of a leveling beam 4 is connected with an upper clamp II 12 through a pin joint structure II 7, the other end of the leveling beam 4 is connected with one end of an electric cylinder I9 through a pin joint structure I5, the other end of the electric cylinder I9 is connected with an upper clamp I11 through a pin joint structure III 10, so that the leveling beam 4, an upper high-strength screw 15 and the electric cylinder I9 form a stable triangular structure, an inclination angle sensor 6 used for monitoring the leveling condition of the top surface of the leveling beam in the process of replacing a suspender on line is arranged on the top surface of the leveling beam 4, a force sensor I8 used for monitoring the leveling force value in the process of replacing the suspender on line is arranged on the electric cylinder I9, the electric cylinder I is driven according to a monitoring feedback result to control the leveling force value and a rotation angle to meet the leveling safety requirement, and the active control of.
Claims (6)
1. An on-arch active control leveling anchor assembly for boom replacement, characterized by: this an encircle initiative control leveling anchor assembly on for jib is changed includes two sets of encircles initiative control leveling anchor assembly, and two sets of encircles initiative control leveling anchor assembly set up respectively in old jib one side, encircle initiative control leveling anchor assembly and include: the device comprises a leveling beam (4), a pin joint structure I (5), an inclination angle sensor (6), a pin joint structure II (7), a force sensor I (8), an electric cylinder I (9), a pin joint structure III (10), an upper clamp I (11), an upper clamp II (12), a pin joint structure IV (13), a pin joint structure V (14), 2 pairs of high-strength screw rods (15), a force sensor II (16), 2 electric cylinders II (17), a force sensor III (18), 2 electric cylinders III (19), a lower clamp I (20), a pin joint structure VI (21), a lower clamp II (22), a pin joint structure VII (23), 2 pairs of lower high-strength screw rods (24) and a contact sensor (32);
in a working state, two sides of an upper clamp I (11) and two sides of a lower clamp I (20) are respectively connected with 1 electric cylinder II (17) through a pin joint structure IV (13) and a pin joint structure VI (21); the two sides of the upper clamp II (12) and the lower clamp II (22) are respectively connected with 1 electric cylinder III (19) through a pin joint structure V (14) and a pin joint structure VII (23);
the two sides of the upper clamp I and the upper clamp II are respectively connected through an upper high-strength screw rod (15), and the two sides of the lower clamp I and the lower clamp II are respectively connected through a lower high-strength screw rod (24); the clamping force is generated among the upper clamp I, the lower clamp I, the upper clamp II, the lower clamp II and the concrete main arch ring (25) by driving the electric cylinder II (17) and the electric cylinder III (19), so that the friction force resisting the downward sliding is generated on the contact surface of the upper clamp I (11), a contact sensor (32) is arranged on the side surface of the upper clamp I (11), and the electric cylinder II and the electric cylinder III are respectively provided with a force sensor II (16) and a force sensor III (18) for monitoring the anti-sliding state and the clamping force value of the clamps in the process of replacing the suspender on line;
leveling roof beam (4) one end is connected through pin joint structure II (7) with last anchor clamps II (12), the other end is connected through pin joint structure I (5) with electronic jar I (9) one end, electronic jar I (9) other end is connected through pin joint structure III (10) with last anchor clamps I (11), leveling roof beam (4), high-strength screw rod (15) form stable triangular structure with electronic jar I (9), be provided with inclination sensor (6) that are used for the leveling situation of on-line monitoring jib top surface in leveling roof beam change process at leveling roof beam (4) top surface, be provided with I (8) of force sensor that are used for on-line monitoring jib change in-process leveling force value at electronic jar I (9).
2. An on-arch active control leveling anchor assembly for boom replacement as claimed in claim 1 wherein: the leveling beam (4) of the arch active control leveling anchoring device comprises a rectangular leveling beam body (401) and connecting lug plates (402) which are positioned at two ends of the leveling beam body (401) and connected with the leveling beam body into a whole, and pin holes (403) are reserved in the connecting lug plates (402).
3. An on-arch active control leveling anchor assembly for boom replacement as claimed in claim 1 wherein: the pin joint structure I (5), the pin joint structure III (10), the pin joint structure IV (13), the pin joint structure V (14), the pin joint structure VI (21) and the pin joint structure VII (23) of the arch active control leveling anchoring device are assembled by a cuboid-shaped base plate (502) and a cylindrical pin shaft (501), threaded connection is reserved between a threaded hole (503) in the left side surface and a threaded hole (503) in the right side surface of the base plate (502) and the cylindrical pin shaft (501), and bolt holes (504) are reserved in the upper side surface and the lower side surface of the base plate (502) and are convenient to connect with an upper flange plate of an electric cylinder.
4. An on-arch active control leveling anchor assembly for boom replacement as claimed in claim 1 wherein: the pin joint structure II of the arch active control leveling anchoring device is composed of a cylindrical pin shaft.
5. A method for replacing a concrete arch bridge hanging rod is characterized by comprising the following steps: the method for replacing the concrete arch bridge hanging rod by adopting the on-arch active control leveling anchoring device assembly for replacing the hanging rod as claimed in claim 1 comprises the following steps:
A. installing an over-the-arch active control leveling anchor assembly for boom replacement:
symmetrically installing a set of arch upper active control leveling anchoring devices on two sides of the old suspender of the main arch ring;
B. installing an upper shoulder pole beam, a lower shoulder pole beam, a tensioning jack and a temporary suspender:
an upper shoulder pole beam (3) is vertically arranged on a leveling beam of an arch active control leveling anchoring device, four temporary suspenders (28) respectively penetrate through a tensioning jack (2), the upper shoulder pole beam (3) and a lower shoulder pole beam (30) from top to bottom in sequence, the upper end of each temporary suspender is anchored through an upper locker (1), and the lower end of each temporary suspender is anchored through a lower locker (31);
C. stretching test:
the temporary suspender (28) is tensioned by driving the tensioning jack (2) to slowly perform trial tensioning step by step, the connection safety and the stable load holding capacity of each part of the upper active control leveling anchoring device assembly are checked, and the lower shoulder pole beam is ensured to be closely attached to the bottom of the suspender beam (29);
D. tensioning the temporary suspender, dismantling the old suspender:
when the old suspender is formally dismantled, the old suspender is unloaded step by step, the temporary suspender is synchronously tensioned step by step, the cable force of the old suspender is converted to the arch to actively control and level the anchoring device assembly, the cable force system conversion is completed, and the old suspender is cut off and dismantled;
E. installing a new suspender, tensioning and anchoring the new suspender step by step, and completing the conversion of a cable force system to the new suspender:
after the new suspender is installed, the new suspender is tensioned step by step, the temporary suspender is synchronously and gradually tensioned, the cable force of the on-arch active control leveling anchoring device assembly is converted to the new suspender, the cable force system conversion is completed, and the new suspender is anchored after being tensioned in place;
F. removing the on-arch active control leveling anchoring device assembly for replacing the suspender and transferring the on-arch active control leveling anchoring device assembly to the next old suspender;
G. and D, repeating the step A to the step F when each suspender is replaced, and completing the replacement of other suspenders.
6. A method of replacing a concrete arch bridge boom according to claim 5, wherein: in a step a of installing an on-arch active control leveling anchor assembly for boom replacement, the on-arch active control leveling anchor comprises: the device comprises a leveling beam (4), a pin joint structure I (5), an inclination angle sensor (6), a pin joint structure II (7), a force sensor I (8), an electric cylinder I (9), a pin joint structure III (10), an upper clamp I (11), an upper clamp II (12), a pin joint structure IV (13), a pin joint structure V (14), 2 pairs of high-strength screw rods (15), a force sensor II (16), 2 electric cylinders II (17), a force sensor III (18), 2 electric cylinders III (19), a lower clamp I (20), a pin joint structure VI (21), a lower clamp II (22), a pin joint structure VII (23), 2 pairs of lower high-strength screw rods (24) and a contact sensor (32);
during installation, two sides of an upper clamp I (11) and two sides of a lower clamp I (20) are respectively connected with 1 electric cylinder II (17) through a pin joint structure IV (13) and a pin joint structure VI (21); the two sides of the upper clamp II (12) and the lower clamp II (22) are respectively connected with 1 electric cylinder III (19) through a pin joint structure V (14) and a pin joint structure VII (23);
the two sides of the upper clamp I and the upper clamp II are respectively connected through a high-strength screw rod (15), and the two sides of the lower clamp I and the lower clamp II are respectively connected through a lower high-strength screw rod (24); the clamping force is generated between the upper clamp I, the lower clamp I, the upper clamp II and the lower clamp II and between the main concrete arch ring (25) by driving the electric cylinder II (17) and the electric cylinder III (19), so that the friction force resisting the downward sliding is generated on the contact surface of the main arch ring and the main arch ring, a contact sensor (32) is arranged on the side surface of the upper clamp I (11), a force sensor II (16) and a force sensor III (18) for monitoring the anti-sliding state and the clamping force value of the clamp in the process of replacing the suspender on line are respectively arranged on the electric cylinder II and the electric cylinder III, the clamping force of the electric cylinder II or the electric cylinder III is driven according to a monitoring feedback result to meet the anti-sliding safety requirement, and the anchorage force is actively controlled on the arch in the process of replacing the suspender;
one end of a leveling beam (4) is connected with an upper clamp II (12) through a pin joint structure II (7), the other end of the leveling beam (4) is connected with one end of an electric cylinder I (9) through a pin joint structure I (5), the other end of the electric cylinder I (9) is connected with an upper clamp I (11) through a pin joint structure III (10), so that the leveling beam (4), an upper high-strength screw rod (15) and the electric cylinder I (9) form a stable triangular structure, an inclination angle sensor (6) for monitoring the leveling condition of the top surface of the leveling beam in the process of replacing the suspender on line is arranged on the top surface of the leveling beam (4), a force sensor I (8) for monitoring the leveling force value in the process of replacing the suspender on line is arranged on an electric cylinder I (9), and driving the electric cylinder I to control the leveling force value and the rotation angle according to the monitoring feedback result so as to meet the leveling safety requirement, and realizing the active control leveling on the arch in the process of replacing the suspender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259360.2A CN111042008A (en) | 2019-12-10 | 2019-12-10 | Over-arch active control leveling anchoring device assembly for boom replacement and method for boom replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259360.2A CN111042008A (en) | 2019-12-10 | 2019-12-10 | Over-arch active control leveling anchoring device assembly for boom replacement and method for boom replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111042008A true CN111042008A (en) | 2020-04-21 |
Family
ID=70235608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911259360.2A Pending CN111042008A (en) | 2019-12-10 | 2019-12-10 | Over-arch active control leveling anchoring device assembly for boom replacement and method for boom replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111042008A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10291778A (en) * | 1997-04-17 | 1998-11-04 | Hitachi Constr Mach Co Ltd | Connecting device for pendant rope |
| CN200999323Y (en) * | 2007-02-06 | 2008-01-02 | 同济大学 | Replaceable hoisting rod for half-through or through arch bridges |
| CN109001060A (en) * | 2018-07-18 | 2018-12-14 | 西南交通大学 | A kind of drawing hoist cable pulling force width and the two-way index fatigue experimental device of anchored end corner and method |
| CN211849004U (en) * | 2019-12-10 | 2020-11-03 | 柳州欧维姆结构检测技术有限公司 | Arch active control leveling anchoring device assembly for suspender replacement |
-
2019
- 2019-12-10 CN CN201911259360.2A patent/CN111042008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10291778A (en) * | 1997-04-17 | 1998-11-04 | Hitachi Constr Mach Co Ltd | Connecting device for pendant rope |
| CN200999323Y (en) * | 2007-02-06 | 2008-01-02 | 同济大学 | Replaceable hoisting rod for half-through or through arch bridges |
| CN109001060A (en) * | 2018-07-18 | 2018-12-14 | 西南交通大学 | A kind of drawing hoist cable pulling force width and the two-way index fatigue experimental device of anchored end corner and method |
| CN211849004U (en) * | 2019-12-10 | 2020-11-03 | 柳州欧维姆结构检测技术有限公司 | Arch active control leveling anchoring device assembly for suspender replacement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108603380B (en) | System and method for installing tensioning tendons in a wind turbine tower | |
| CN103147391A (en) | Corrosion-resistant self-centering bridge pier structure easy for seismic rehabilitation | |
| CN111517212A (en) | Lifting appliance capable of adjusting position of lifting point and inclination angle of lifted object and operation method | |
| CN211849004U (en) | Arch active control leveling anchoring device assembly for suspender replacement | |
| CN115506650A (en) | Jacking landing double-rocker arm holding rod assembly and vertical tower and disassembly and assembly process | |
| CN113699891A (en) | Processing, manufacturing and construction method of prefabricated small box girder hanging bracket | |
| CN210439705U (en) | Precast concrete superimposed sheet hoist device | |
| CN111042008A (en) | Over-arch active control leveling anchoring device assembly for boom replacement and method for boom replacement | |
| CN107939422B (en) | Device with arch grabbing and rock drilling functions | |
| CN212612011U (en) | Hoop support for cylindrical pier | |
| CN212403195U (en) | Lifting appliance capable of adjusting position of hanging point and inclination angle of lifted object | |
| CN212153150U (en) | Whole reinforcing apparatus of bridge | |
| CN210797292U (en) | Six-direction positioning and quick adjusting device for realizing prefabricated section beam | |
| CN111470407B (en) | Weighing rod type hoisting assembly, hoisting equipment and hoisting method | |
| JPH0941325A (en) | Bridge floor slab disassembling method and device | |
| CN220358985U (en) | Special tool for dismounting magnetic poles of rotor of hydraulic generator | |
| CN212716557U (en) | Pre-buried articulated seat and self-translation pylon base | |
| CN111058388A (en) | Suspension bridge sling replacement underpinning device | |
| CN217173052U (en) | Auxiliary dismantling and hoisting device for tower crane cab | |
| CN216764030U (en) | Safe and rapid hoisting tool for large ship lock herringbone door pivot A, B rod | |
| CN219279252U (en) | Special support tool for hoisting | |
| CN216999261U (en) | End part anchoring part and temporary anchoring structure | |
| CN220977659U (en) | Bridge limit structure | |
| CN216583940U (en) | Hydraulic lifting device for bridge reinforced concrete combined section | |
| CN220790646U (en) | Steel strand stress adjusting device applied to prestress fish belly type reaction frame |
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 |