CN113931086B - Pier deviation rectifying construction process - Google Patents
Pier deviation rectifying construction process Download PDFInfo
- Publication number
- CN113931086B CN113931086B CN202111260547.1A CN202111260547A CN113931086B CN 113931086 B CN113931086 B CN 113931086B CN 202111260547 A CN202111260547 A CN 202111260547A CN 113931086 B CN113931086 B CN 113931086B
- Authority
- CN
- China
- Prior art keywords
- support
- safety
- fixedly connected
- safety fence
- fixing
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 119
- 238000012423 maintenance Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000013102 re-test Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Abstract
The invention discloses a pier deviation rectifying construction process, which comprises a moving mechanism, two power mechanisms connected to the moving mechanism in a sliding way and a safety fence mechanism connected to the lower part of the moving mechanism, wherein a return mechanism is fixedly connected to the moving mechanism, the two power mechanisms are respectively connected to two sides of the safety fence mechanism in a sliding way, and a fixing mechanism is arranged on the lower side of the safety fence mechanism; the bridge further comprises an upper guide frame fixedly connected to the bottom of the bridge through nuts and a side guide frame fixedly connected to the bridge pier, and the two power mechanisms are both hoisted on the upper guide frame; the operation position of the safety fence is moved through the power mechanism, the operation position can be adjusted at any time according to different operation positions, the installation area of the operation platform is reduced, the cost of later maintenance can be greatly saved, and the operation area of operators can be increased through the position change of the safety fence mechanism at a fixed position.
Description
Technical Field
The invention belongs to the technical field of bridge pier deviation correction, and particularly relates to a bridge pier deviation correction construction process.
Background
The main diseases of the bridge occur in the transition pier and the support at the expansion joint, the longitudinal slope of the bridge is larger, and a limiting device is not arranged between the upper structure and the lower structure, so that dislocation phenomenon can occur; the dislocation phenomenon greatly reduces the stability and safety of the bridge, potential safety hazards possibly exist, and tension cracks can be generated at the bottom of the pier column when the pier is deviated greatly, so that the opposite beam plate of the pier deviation has the risk of sliding and falling, and the treatment of the pier deviation is a technical difficulty and a safety risk.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a pier deviation rectifying construction process.
The technical scheme adopted by the invention is as follows:
a pier deviation rectifying construction process is characterized in that: the method comprises the following steps:
s1: measuring the offset: the method comprises the steps of carrying out retest on longitudinal offset values (especially the bridge pier needing correction) of all bridge piers before maintenance and reinforcement are carried out, and carrying out measurement and comparison in at least two different modes during retest so as to determine the accurate offset value of the bridge pier before construction, thereby determining the correction value of the bridge pier;
s2: cleaning foreign matters: the operator gets on the construction platform to clean all garbage on the bridge pier and the table cap;
s3: closed road section: closing a traffic lane and a hard road shoulder and limiting speed for traffic;
s4: jacking the bridge: and after the vertical jack is lifted, a temporary steel plate supporting pad is adopted to convert the stress of the jack, a stainless steel plate and a tetrafluoro slide plate are additionally arranged between the temporary steel plate and the cap beam top, the lifting height of the jack is controlled within 2cm, and the tetrafluoro slide plate is inserted between the upper top surface of the original support and the steel plate on the support.
S5: reset monitoring: resetting pier columns in a longitudinal deviation correcting way, and synchronously performing construction monitoring;
s6: repairing the falling beam: after the pier column is rectified, vertically jacking and dismantling the tetrafluoro slide plate, and repairing the support cushion stone before the girder falls to meet the installation requirement of installing the adjustable support;
s7: traffic is resumed: and removing the site safety protection device, releasing traffic control, opening traffic and recovering the vehicle to pass through in a fortune.
The construction platform comprises a moving mechanism, two power mechanisms which are connected to the moving mechanism in a sliding manner and a safety fence mechanism which is connected to the lower part of the moving mechanism, wherein a return mechanism is fixedly connected to the moving mechanism, the two power mechanisms are respectively connected to two sides of the safety fence mechanism in a sliding manner, and a fixing mechanism is arranged on the lower side of the safety fence mechanism;
the bridge is characterized by further comprising an upper guide frame fixedly connected to the bottom of the bridge through nuts and a side guide frame fixedly connected to the bridge pier, wherein the two power mechanisms are hoisted on the upper guide frame, and the fixing mechanism slides in the side guide frame.
Preferably, the moving mechanism comprises a moving support, a first screw rod rotatably connected to the middle of the moving support, and a first motor fixedly connected to one side of the moving support, and an output shaft of the first motor is fixedly connected to one end of the first screw rod.
Preferably, the power mechanism comprises a power bracket, guide wheels, a second motor and a sliding block, wherein the power bracket is connected to the movable bracket in a sliding manner, the guide wheels are connected to two sides of the power bracket in a rotating manner, the second motor is fixedly connected to one side of the power bracket, the sliding block is fixedly connected to the lower portion of the power bracket, and an output shaft of the second motor is fixedly connected with one of the guide wheel brackets.
Preferably, the safety fence mechanism comprises a connecting piece which is connected on the movable bracket in a sliding way, the connecting piece is connected with the first screw rod in a threaded way, clamping blocks are connected on two sides of the connecting piece in a sliding way, an elastic piece is arranged between the clamping blocks and the connecting piece, a safety fence bracket is clamped between the two clamping blocks,
preferably, the safety fence mechanism is characterized in that two sides of the safety fence mechanism are slidably connected with movable safety fences, two first racks are fixedly connected to the lower portion of the safety fence support, telescopic guardrails are arranged between the front side and the rear side of the safety fence support and the movable safety fences, first oil cylinders are arranged between the bottom of the safety fence support and the movable safety fences, the safety fence support is in threaded connection with the first lead screw, and two movable safety fences are in sliding connection with the two sliding blocks respectively.
Preferably, the fixing mechanism comprises a fixing support, a fixing sliding frame and two first driving wheels, wherein the fixing support is connected to the bottom of the safety fence support in a sliding mode, the fixing sliding frame is connected to the fixing support in a sliding mode, the two first driving wheels are connected to the fixing sliding frame in a rotating mode, second racks are arranged on two sides of the fixing sliding frame, the two second racks are respectively connected with the two first driving wheels in a transmission mode, the two first driving wheels are respectively connected with the two first racks in a transmission mode, a second oil cylinder is arranged between the fixing support and the safety fence support, fixing columns are arranged on the fixing sliding frame at equal intervals, and fixing holes matched with the fixing columns in size are formed in the fixing support at equal intervals.
Preferably, the return mechanism comprises a return bracket fixedly connected to the movable bracket, return carriages are fixedly connected to two sides of the return bracket, a first spring is arranged between the return carriages and the return bracket, a second screw rod is arranged between the return carriages, and a limiting barrel is fixedly connected to the return bracket.
Preferably, a traction wheel is fixedly connected to the second screw rod, a traction rope is wound on the traction wheel, one end of the traction rope is fixedly connected to the safety fence support, a second driving wheel is rotatably connected to the second screw rod, a torsion spring is arranged between the second driving wheel and the traction wheel, a friction barrel is connected to the second driving wheel in a threaded mode, and the friction barrel is connected to the limiting barrel in a sliding mode.
Preferably, the return support is rotatably connected with a worm, one end of the worm is fixedly connected with a third driving wheel, the return support is rotatably connected with a fourth driving wheel, the fourth driving wheel is in transmission connection with the worm, and the fourth driving wheel is in transmission connection with the upper guide frame.
The beneficial effects of the invention are as follows:
by systematically checking the high-speed bridge, potential safety hazards possibly existing in the high-speed bridge are eliminated, the stability and the safety of the high-speed bridge are ensured, and in the maintenance and repair process, maintenance personnel need to perform reinforcement on the unstable place of the bridge, so that the service life of the high-speed bridge is prolonged, the quality of the high-speed bridge is improved, and the normal operation of the high-speed bridge is ensured;
the construction platform can be in the in-process that drops, utilizes construction platform's gravity to drive return mechanism and rotates, with the smooth position of sending to of operating personnel, can prevent that personnel from appearing danger in safety barrier mechanism, send operating personnel to the position of sending simultaneously can reduce personnel's rescue work like this.
The construction platform is through adopting suspension type mode, through the operation position of power unit removal safety fence, can adjust at any time according to the difference of operation position, can save the expense of later maintenance simultaneously greatly to reduce operation platform's installation area, through utilizing the change of safety fence mechanism position, can increase operation personnel's operation area in fixed position's the passage.
Drawings
The invention will be described in further detail with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic view of the overall axial side structure of the present invention;
FIG. 2 is a schematic view of the overall front side of the present invention;
FIG. 3 is a schematic view of the movement mechanism and power mechanism of the present invention;
FIG. 4 is a schematic view of the axial side structure of the safety barrier mechanism of the present invention;
FIG. 5 is a schematic view of the safety bar mechanism portion of the present invention;
FIG. 6 is a schematic view of the safety bar mechanism and securing mechanism of the present invention;
FIG. 7 is a schematic view of the structure of the front side of the return mechanism of the present invention;
fig. 8 is a schematic view of the structure of the shaft side of the return mechanism of the present invention.
In the figure: 1-a moving mechanism; 101-moving a bracket; 102-a first motor; 103-a first screw rod; 2-a power mechanism; 201-a power rack; 202-a second motor; 203-a guide wheel; 204-a slider; 3-a safety fence mechanism; 301-a safety bar support; 302-moving a security bar; 303—telescoping guardrail; 304-a first oil cylinder; 305-a first rack; 306-a connector; 307-clamp blocks; 4-a fixing mechanism; 401-fixing a bracket; 402-a fixed carriage; 403-a second oil cylinder; 404-a first drive wheel; 405-fixing holes; 406-fixing the column; 407-a second rack; 5-upper guide frames; 6-side guide frames; 7-a return mechanism; 701-a backhaul stent; 702-a return carriage; 703-a second screw; 704-traction wheels; 705-a second drive wheel; 706-friction barrels; 707-limiting barrels; 708-a third drive wheel; 709-a fourth drive wheel; 710-worm; 8, a deviation rectifying bracket; 9-jack; 10-tetrafluoro slide plate.
Detailed Description
The invention is further described with reference to the drawings and specific examples.
The following describes a concrete embodiment of the invention with reference to fig. 1-8, a construction platform of bridge pier deviation correcting construction technology, comprising a moving mechanism 1, two power mechanisms 2 connected on the moving mechanism 1 in a sliding way and a safety fence mechanism 3 connected on the lower part of the moving mechanism 1, wherein a return mechanism 7 is fixedly connected on the moving mechanism 1, the two power mechanisms 2 are respectively connected on two sides of the safety fence mechanism 3 in a sliding way, and a fixing mechanism 4 is arranged on the lower side of the safety fence mechanism 3; the bridge further comprises an upper guide frame 5 fixedly connected to the bottom of the bridge through nuts and a side guide frame 6 fixedly connected to the bridge pier, the two power mechanisms 2 are both hoisted on the upper guide frame 5, and the fixing mechanism 4 slides inside the side guide frame 6; compared with a safety protection device, the device adopts a suspension type mode, the operation position of the safety fence is moved through the power mechanism, the operation position can be adjusted at any time according to different operation positions, the installation area of an operation platform is reduced, meanwhile, the cost of later maintenance can be greatly saved, and the operation area of operators can be increased through the position change of the safety fence mechanism at a fixed position; when the construction platform falls, the gravity of the construction platform is utilized to drive the return mechanism 7 to rotate, the operation personnel are smoothly sent to the starting position, danger of the operation personnel in the safety fence mechanism 3 can be prevented, and meanwhile, the operation personnel are sent to the starting position, so that rescue work of the operation personnel can be reduced.
Preferably, in one embodiment of the present invention, referring again to fig. 3, the moving mechanism 1 includes a moving bracket 101, a first screw 103 rotatably connected to the middle of the moving bracket 101, and a first motor 102 fixedly connected to one side of the moving bracket 101, where an output shaft of the first motor 102 is fixedly connected to one end of the first screw 103; the power mechanism 2 comprises a power bracket 201 which is connected to the movable bracket 101 in a sliding manner, guide wheels 203 which are connected to two sides of the power bracket 201 in a rotating manner, a second motor 202 which is fixedly connected to one side of the power bracket 201, and a sliding block 204 which is fixedly connected to the lower part of the power bracket 201, wherein an output shaft of the second motor 202 is fixedly connected with one guide wheel 203; the first motor 102 is driven to drive the first screw rod 103 to rotate, and the safety fence mechanism 3 is pushed to move through threads in the rotating process; since the guide wheel 203 is clamped in the groove on the upper guide frame 5, the second motor 202 is driven to rotate by driving the second motor 202 in the moving process, and the friction force between the second motor 202 and the upper guide frame 5 is utilized to drive the device to move.
Preferably, in one embodiment of the present invention, referring again to fig. 4-6, the safety bar mechanism 3 includes a connecting member 306 slidably connected to the moving bracket 101, the connecting member 306 is screwed with the first screw 103, two sides of the connecting member 306 are slidably connected with clamping blocks 307, an elastic member is disposed between the clamping blocks 307 and the connecting member 306, and the safety bar bracket 301 is clamped between the two clamping blocks 307; the two sides of the safety fence mechanism 3 are both slidably connected with movable safety fences 302, the lower part of the safety fence support 301 is fixedly connected with two first racks 305, telescopic guardrails 303 are arranged between the front side and the rear side of the safety fence support 301 and the two movable safety fences 302, first oil cylinders 304 are arranged between the bottom of the safety fence support 301 and the two movable safety fences 302, the safety fence support 301 is in threaded connection with the first screw rods 103, and the two movable safety fences 302 are respectively in sliding connection with the two sliding blocks 204; the fixing mechanism 4 comprises a fixing bracket 401 connected to the bottom of the safety fence bracket 301 in a sliding manner, a fixing carriage 402 connected to the fixing bracket 401 in a sliding manner, and two first driving wheels 404 connected to the fixing bracket 401 in a rotating manner, wherein two sides of the fixing carriage 402 are respectively provided with a second rack 407, the two second racks 407 are respectively connected with the two first driving wheels 404 in a driving manner, the two first driving wheels 404 are respectively connected with the two first racks 305 in a driving manner, a second oil cylinder 403 is arranged between the fixing bracket 401 and the safety fence bracket 301, fixing columns 406 are arranged on the fixing carriage 402 in an equidistant manner, and fixing holes 405 matched with the fixing columns 406 in size are arranged on the fixing bracket 401 in an equidistant manner; the distance between the safety bar support 301 and the fixed support 401 will be contracted in the moving process of the safety bar support 301, and as the fixed support 401 is slidably connected inside the side guide frame 6, in the moving process, the first driving wheel 404 on the fixed support 401 drives the first rack 305 to rotate through being meshed with the first rack 305 at the lower part of the safety bar support 301, in the rotating process, the fixed support 402 is driven to move to one side of the fixed support 401 through being meshed with the second rack 407 on the fixed support 402, after moving to a designated position, the fixed column 406 on the fixed support 402 passes through the fixed hole 405 which is arranged on the side guide frame 6 and is inserted into the fixed support 401 to fix the safety bar mechanism 3, so that the moving phenomenon is prevented in the working process, and in the fixing process, the first oil cylinder 304 is stretched to push the moving safety bar 302 to two sides by extruding the second oil cylinder 403 which is arranged between the fixed support 401 and the safety bar support 301, so that the working space of the working personnel is enlarged by utilizing the communicating vessel principle.
In a preferred embodiment of the present invention, referring again to fig. 7-8, the return mechanism 7 includes a return bracket 701 fixedly connected to the moving bracket 101, two sides of the return bracket 701 are fixedly connected with return carriages 702, a first spring is disposed between two return carriages 702 and the return bracket 701, a second screw 703 is disposed between two return carriages 702, and a limiting barrel 707 is fixedly connected to the return bracket 701; a traction wheel 704 is fixedly connected to the second screw rod 703, a traction rope is wound on the traction wheel 704, one end of the traction rope is fixedly connected to the safety fence support 301, a second driving wheel 705 is rotatably connected to the second screw rod 703, a torsion spring is arranged between the second driving wheel 705 and the traction wheel 704, a friction barrel 706 is connected to the second driving wheel 705 through threads, and the friction barrel 706 is slidably connected in the limiting barrel 707; a worm 710 is rotatably connected to the return bracket 701, one end of the worm 710 is fixedly connected to a third driving wheel 708, a fourth driving wheel 709 is rotatably connected to the return bracket 701, the fourth driving wheel 709 is in driving connection with the worm 710, and the fourth driving wheel 709 is in driving connection with the upper guide frame 5; during the use, the operating personnel at first will be with safety belt fixed connection on connecting piece 306, when the weight in safety bar mechanism 3 is too big, the phenomenon of safety bar mechanism 3 will appear when safety bar support 301 overcomes the resistance between two clamp blocks 307, will drive traction wheel 704 through pulling the haulage rope and rotate when safety bar support 301 appears dropping, need drive second lead screw 703 and rotate in the in-process of rotating, because the threaded connection between second lead screw 703 and friction bucket 706, because at first time second drive wheel 705, in friction bucket 706's inside, utilize the frictional force through friction bucket 706 and second drive wheel 705 to carry out the holding power through the torsion spring that sets up between traction wheel 704 and second drive wheel 705 when traction wheel 704 rotates, will make second drive wheel 705 and third drive wheel 708 drive through the effect of the first spring that sets up between backhaul support 701 and balladeur frame 702 after second drive wheel 705 breaks away from, drive wheel 709 and the fourth drive wheel 709 and be connected on backhaul support 701 through the drive wheel 710 and rotate, utilize the fixed connection of fourth drive wheel 709 and third drive wheel 709 to carry out the position through setting up in order to reduce the position can be in order to send to the safety bar mechanism 3 through setting up in order to prevent personnel's the position to take turns to the position in order to take over the position to the safety bar mechanism, can be set up in order to the safety bar mechanism and can be safe personnel to take the position to the safety bar mechanism and move at the safety bar mechanism.
S1: measuring the offset: the method comprises the steps of carrying out retest on longitudinal offset values (especially the bridge pier needing correction) of all bridge piers before maintenance and reinforcement are carried out, and carrying out measurement and comparison in at least two different modes during retest so as to determine the accurate offset value of the bridge pier before construction, thereby determining the correction value of the bridge pier;
s2: cleaning foreign matters: the operator gets on the construction platform to clean all garbage on the bridge pier and the table cap;
s3: closed road section: closing a traffic lane and a hard road shoulder and limiting speed for traffic;
s4: jacking the bridge: after the vertical jack is installed on the pier top, the stress of the jack is converted by adopting a temporary steel plate supporting pad, a stainless steel plate and a tetrafluoro slide plate are additionally arranged between the temporary steel plate and the cap beam top, the lifting height of the jack is controlled within 2cm, and the tetrafluoro slide plate 10 is inserted between the upper top surface of the original support and the steel plate on the support.
S5: reset monitoring: resetting pier columns in a longitudinal deviation correcting way, and synchronously performing construction monitoring;
s6: repairing the falling beam: after the pier column is rectified, the tetrafluoro slide plate 10 is vertically lifted and removed, and the support cushion stone is repaired before the girder falls so as to meet the installation requirement of the installation adjustable support.
S7: traffic is resumed: and removing the site safety protection device, releasing traffic control, opening traffic and recovering the vehicle to pass through in a fortune.
And (3) installing the lower side of the bridge between the bridge and the bridge pier in the correction process in the step S4, installing the bottom of the jack on the correction support, jacking the telescopic end of the jack to the side part of the bridge pier, pushing the bridge to move by driving the jack, and further adjusting the position of the bridge.
The invention relates to a bridge pier deviation rectifying construction process, which comprises the following working principles:
in the using process, the first motor 102 is driven to drive the first screw rod 103 to rotate, and the safety fence mechanism 3 is pushed to move through threads in the rotating process; because the guide wheel 203 is clamped in the groove on the upper guide frame 5, the second motor 202 is driven to rotate by driving the second motor 202 in the moving process, and the friction force between the second motor 202 and the upper guide frame 5 is utilized to drive the device to move; the distance between the safety bar support 301 and the fixed support 401 is shortened in the moving process of the safety bar support 301, and as the fixed support 401 is connected inside the side guide frame 6 in a sliding manner, in the moving process, the first driving wheel 404 on the fixed support 401 drives the first rack 305 to rotate through being meshed with the first rack 305 arranged at the lower part of the safety bar support 301, in the rotating process, the fixed support 402 is driven to move to one side of the fixed support 401 through being meshed with the second rack 407 on the fixed support 402, after the fixed support 402 moves to a designated position, the fixed column 406 on the fixed support 402 passes through the fixed hole 405 arranged on the side guide frame 6 and is inserted into the fixed support 401 to fix the safety bar mechanism 3, the phenomenon of movement in the working process is prevented, and in the fixing process, the second cylinder 403 arranged between the fixed support 401 and the safety bar support 301 is extruded, the working space of the moving safety bar 302 is pushed to two sides by the first cylinder 304 to move by extending by using a communicating vessel principle, so that the working space of a worker is enlarged; during the use, the operating personnel is fixedly connected with the connecting piece 306 at first, when the weight in the safety bar mechanism 3 is overlarge, the phenomenon that the safety bar mechanism 3 falls off can appear when the safety bar bracket 301 overcomes the resistance between the two clamping blocks 307, the traction wheel 704 is driven to rotate by pulling the traction rope when the safety bar bracket 301 falls off, the second lead screw 703 is required to be driven to rotate in the rotating process, the second lead screw 703 is in threaded connection with the friction barrel 706, the second driving wheel 705 is initially arranged in the friction barrel 706, the force accumulation is carried out by utilizing the friction force between the friction barrel 706 and the second driving wheel 705 through the torsion spring arranged between the traction wheel 704 and the second driving wheel 705 when the traction wheel 704 rotates, after the second driving wheel 705 moves to the position of the third driving wheel 708, the second driving wheel 705 and the third driving wheel 708 are driven to rotate under the action of the first spring arranged between the bracket 701 and the return carriage 702, the fourth driving wheel 709 is driven to rotate by the worm 710, the fourth driving wheel 709 is connected with the third driving wheel 709 on the friction barrel 706, and the safety bar bracket can be meshed with the first driving wheel 708 to the position of the original safety bar bracket 7, and the safety bar mechanism can be moved to the original position of the safety bar mechanism 3, and the safety bar mechanism can be moved to the position of the safety bar mechanism can be set at the position of the safety personnel.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (1)
1. A pier deviation rectifying construction process is characterized in that: the method comprises the following steps:
s1: measuring the offset: retest is carried out on the longitudinal offset of all piers of the bridge before maintenance and reinforcement are carried out;
s2: cleaning foreign matters: the operator gets on the construction platform to clean all garbage on the bridge pier and the table cap;
s3: closed road section: closing a traffic lane and a hard road shoulder and limiting speed for traffic;
s4: jacking the bridge: after the vertical jack is lifted, a temporary steel plate supporting pad is adopted to change the stress of the jack, a stainless steel plate and a tetrafluoro slide plate are additionally arranged between the temporary steel plate and the top of the cap beam, the vertical jack is lifted to 1.5cm, and a tetrafluoro slide plate (10) is inserted between the upper top surface of the original support and the steel plate on the support;
s5: reset monitoring: resetting pier columns in a longitudinal deviation correcting way, and synchronously performing construction monitoring;
s6: repairing the falling beam: after the pier column is rectified, vertically jacking and dismantling the tetrafluoro slide plate, and repairing the support cushion stone before the girder falls to meet the installation requirement of installing the adjustable support;
s7: traffic is resumed: removing the site safety protection device, releasing traffic control, opening traffic, and recovering vehicle traffic;
the construction platform comprises a moving mechanism (1), two power mechanisms (2) which are connected to the moving mechanism (1) in a sliding manner and a safety fence mechanism (3) which is connected to the lower part of the moving mechanism (1), wherein a return mechanism (7) is fixedly connected to the moving mechanism (1), the two power mechanisms (2) are respectively connected to the two sides of the safety fence mechanism (3) in a sliding manner, and a fixing mechanism (4) is arranged on the lower side of the safety fence mechanism (3);
the bridge further comprises an upper guide frame (5) fixedly connected to the bottom of the bridge through nuts and a side guide frame (6) fixedly connected to the bridge pier, the two power mechanisms (2) are hoisted on the upper guide frame (5), and the fixing mechanism (4) slides in the side guide frame (6);
the moving mechanism (1) comprises a moving support (101), a first screw rod (103) rotatably connected to the middle of the moving support (101) and a first motor (102) fixedly connected to one side of the moving support (101), and an output shaft of the first motor (102) is fixedly connected to one end of the first screw rod (103);
the power mechanism (2) comprises a power bracket (201) which is connected to the movable bracket (101) in a sliding manner, guide wheels (203) which are connected to two sides of the power bracket (201) in a rotating manner, a second motor (202) which is fixedly connected to one side of the power bracket (201) and a sliding block (204) which is fixedly connected to the lower part of the power bracket (201), wherein an output shaft of the second motor (202) is fixedly connected with one of the guide wheels (203) in a supporting manner;
the safety fence mechanism (3) comprises a connecting piece (306) which is connected to the movable support (101) in a sliding manner, the connecting piece (306) is connected with the first screw rod (103) in a threaded manner, clamping blocks (307) are connected to two sides of the connecting piece (306) in a sliding manner, an elastic piece is arranged between the clamping blocks (307) and the connecting piece (306), and the safety fence support (301) is clamped between the two clamping blocks (307);
the safety fence mechanism is characterized in that two sides of the safety fence mechanism (3) are slidably connected with movable safety fences (302), two first racks (305) are fixedly connected to the lower portion of the safety fence support (301), telescopic guardrails (303) are arranged between the front side and the rear side of the safety fence support (301) and the two movable safety fences (302), first oil cylinders (304) are arranged between the bottoms of the safety fence support (301) and the two movable safety fences (302), the safety fence support (301) is in threaded connection with the first lead screws (103), and the two movable safety fences (302) are respectively in sliding connection with the two sliding blocks (204);
the fixing mechanism (4) comprises a fixing support (401) which is connected to the bottom of the safety fence support (301) in a sliding mode, a fixing sliding frame (402) which is connected to the fixing support (401) in a sliding mode, and two first driving wheels (404) which are connected to the fixing support (401) in a rotating mode, second racks (407) are arranged on two sides of the fixing sliding frame (402), the two second racks (407) are respectively connected with the two first driving wheels (404) in a driving mode, the two first driving wheels (404) are respectively connected with the two first racks (305) in a driving mode, a second oil cylinder (403) is arranged between the fixing support (401) and the safety fence support (301), fixing columns (406) are arranged on the fixing sliding frame (402) in an equidistant mode, and fixing holes (405) which are matched with the fixing columns (406) in size are arranged on the fixing support (401) in an equidistant mode.
The return mechanism (7) comprises return brackets (701) fixedly connected to the moving mechanism (1), return carriages (702) are fixedly connected to two sides of each return bracket (701), a first spring is arranged between each return carriage (702) and each return bracket (701), a second screw rod (703) is arranged between each return carriage (702), and a limiting barrel (707) is fixedly connected to each return bracket (701);
a traction wheel (704) is fixedly connected onto the second screw rod (703), a traction rope is wound on the traction wheel (704), one end of the traction rope is fixedly connected onto the safety fence mechanism (3), a second driving wheel (705) is rotatably connected onto the second screw rod (703), a torsion spring is arranged between the second driving wheel (705) and the traction wheel (704), a friction barrel (706) is connected onto the second driving wheel (705) in a threaded manner, and the friction barrel (706) is slidably connected into the limiting barrel (707);
a worm (710) is rotationally connected to the return bracket (701), a third driving wheel (708) is fixedly connected to one end of the worm (710), a fourth driving wheel (709) is rotationally connected to the return bracket (701), the fourth driving wheel (709) is in driving connection with the worm (710), and the fourth driving wheel (709) is in driving connection with the upper guide frame (5);
in the using process, the first motor (102) is driven to drive the first screw rod (103) to rotate, and the safety fence mechanism (3) is pushed to move through threads in the rotating process; because the guide wheel (203) is clamped in the groove on the upper guide frame (5), the second motor (202) is driven to rotate by driving the second motor (202) in the moving process, and the device is driven to move by utilizing the friction force between the second motor (202) and the upper guide frame (5); the distance between the safety bar support (301) and the fixed support (401) is shortened in the moving process of the safety bar support (301), and as the fixed support (401) is connected inside the side guide frame (6) in a sliding manner, a first driving wheel (404) on the fixed support (401) is fixed in a fixing hole (405) arranged on the side guide frame (6) and inserted into the fixed support (401) in the moving process, the first driving wheel (404) is meshed with a first rack (305) at the lower part of the safety bar support (301) to drive the first rack (305) to rotate, the fixed support (402) is driven to move towards one side of the fixed support (401) by being meshed with a second rack (407) on the fixed support (402) in the rotating process, and a fixed column (406) on the fixed support (402) is pushed to extend towards two sides of the safety bar (301) by utilizing the principle of extrusion of the fixed support (401) in the fixed process, so that the safety bar (301) is extended towards two sides by utilizing the principle of the fixed support (401); during the use, the safety belt is fixedly connected on the connecting piece (306) firstly by an operator, when the weight in the safety bar mechanism (3) is overlarge, the safety bar bracket (301) overcomes the phenomenon that the safety bar mechanism (3) falls off when the resistance between the two clamping blocks (307) is overcome, the safety bar bracket (301) drives the traction wheel (704) to rotate through pulling the traction rope when falling off, the second lead screw (703) is required to be driven to rotate in the rotating process, the second lead screw (703) is in threaded connection with the friction barrel (706) due to the fact that the second lead screw (703) is in threaded connection with the friction barrel (706), the second lead screw (705) is fixedly connected with the fourth lead screw (709) on the fourth lead screw (701) through the effect of the first spring arranged between the return bracket (701) and the sliding frame (702) after the second lead screw (705) moves to the position of the third lead screw (708) through the torsion spring arranged between the traction wheel (704) and the second lead screw (705) when the traction wheel (704) rotates, the second lead screw (705) is meshed with the fourth lead screw (709) through the fourth lead screw (710) to rotate on the fourth lead screw (709) through the fourth lead screw (710) when the third lead screw (702) rotates, the movable mechanism (1) can be brought back to the original position, the operation personnel can be safely sent to the original position through the arranged return mechanism (7) after the safety fence mechanism (3) falls to a certain position, the danger of the operation personnel in the safety fence mechanism (3) can be prevented, and meanwhile, the operation personnel is sent to the starting position, so that the rescue work of the operation personnel can be reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260547.1A CN113931086B (en) | 2021-10-28 | 2021-10-28 | Pier deviation rectifying construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260547.1A CN113931086B (en) | 2021-10-28 | 2021-10-28 | Pier deviation rectifying construction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113931086A CN113931086A (en) | 2022-01-14 |
| CN113931086B true CN113931086B (en) | 2023-12-05 |
Family
ID=79284599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111260547.1A Active CN113931086B (en) | 2021-10-28 | 2021-10-28 | Pier deviation rectifying construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113931086B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011149202A (en) * | 2010-01-21 | 2011-08-04 | Fletcher Construction Co Ltd | Installation method of bridge pier |
| CN103821090A (en) * | 2014-02-27 | 2014-05-28 | 武汉中交试验检测加固工程有限责任公司 | Deviation correcting and resetting method for inclined bridge pier |
| CN205062654U (en) * | 2015-10-25 | 2016-03-02 | 王艳青 | High -speed railway bridge wall side ventilation hole location walking bridge inspection robot |
| CN205329562U (en) * | 2016-01-20 | 2016-06-22 | 招商局重庆交通科研设计院有限公司 | Bridge construction detection platform |
| CN206784198U (en) * | 2017-04-25 | 2017-12-22 | 浙江海安建设有限公司 | A kind of bridge high altitude operation stage apparatus |
| CN109356042A (en) * | 2018-10-15 | 2019-02-19 | 浙江交工集团股份有限公司 | A kind of replacing and rectificating method after pier slope |
| CN210264010U (en) * | 2019-07-08 | 2020-04-07 | 张晓薇 | Anti-falling building construction support |
| CN212404862U (en) * | 2020-06-02 | 2021-01-26 | 张波 | Bridge construction is with preventing device that falls |
| CN214459624U (en) * | 2021-01-19 | 2021-10-22 | 曲聪 | Bridge detection device |
-
2021
- 2021-10-28 CN CN202111260547.1A patent/CN113931086B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011149202A (en) * | 2010-01-21 | 2011-08-04 | Fletcher Construction Co Ltd | Installation method of bridge pier |
| CN103821090A (en) * | 2014-02-27 | 2014-05-28 | 武汉中交试验检测加固工程有限责任公司 | Deviation correcting and resetting method for inclined bridge pier |
| CN205062654U (en) * | 2015-10-25 | 2016-03-02 | 王艳青 | High -speed railway bridge wall side ventilation hole location walking bridge inspection robot |
| CN205329562U (en) * | 2016-01-20 | 2016-06-22 | 招商局重庆交通科研设计院有限公司 | Bridge construction detection platform |
| CN206784198U (en) * | 2017-04-25 | 2017-12-22 | 浙江海安建设有限公司 | A kind of bridge high altitude operation stage apparatus |
| CN109356042A (en) * | 2018-10-15 | 2019-02-19 | 浙江交工集团股份有限公司 | A kind of replacing and rectificating method after pier slope |
| CN210264010U (en) * | 2019-07-08 | 2020-04-07 | 张晓薇 | Anti-falling building construction support |
| CN212404862U (en) * | 2020-06-02 | 2021-01-26 | 张波 | Bridge construction is with preventing device that falls |
| CN214459624U (en) * | 2021-01-19 | 2021-10-22 | 曲聪 | Bridge detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113931086A (en) | 2022-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107632023B (en) | Bridge detection structure and detection method thereof | |
| CN109113320B (en) | Construction operation method in elevator shaft | |
| CN111005315B (en) | Bridge bottom surface detection structure and detection method thereof | |
| CN101597958B (en) | Template system capable of internally erecting and detaching mould | |
| KR20090120886A (en) | Self-launching apparatus for moving girders forwardly for incremental launching method | |
| CN113931086B (en) | Pier deviation rectifying construction process | |
| CN108756198B (en) | Elevator shaft operating platform | |
| CN211850709U (en) | Simple scaffold for house construction | |
| CN109113321B (en) | Automatic leveling operation platform | |
| CN112796685A (en) | Automatic calandria device of oil field workover | |
| CN214459694U (en) | Working platform for construction outside viaduct and overpass | |
| CN214497224U (en) | Large-scale bridge maintenance auxiliary device | |
| CN215976904U (en) | Highway bridge maintains and uses scaffold frame | |
| CN219218705U (en) | Highway bridge construction platform | |
| CN220081041U (en) | Protective equipment for subway operation maintenance | |
| CN218756983U (en) | Bridge detection operation car landing leg | |
| CN217231505U (en) | Pier construction safety device that rectifies | |
| CN216476312U (en) | Hydraulic climbing formwork anti-falling and anti-tilting device | |
| CN217205221U (en) | Scaffold for building engineering with protective structure | |
| CN220392357U (en) | Single-rail type unloading trolley for building civil engineering | |
| CN218621907U (en) | Railway bridge lateral part and bottom protection maintenance are with removing frame | |
| RU208369U1 (en) | MOBILE UNIT FOR REPLACING WHEEL SETS OR UNDERWORK EQUIPMENT | |
| CN220665975U (en) | A operation platform truck for construction of bridge anticollision barrier template | |
| CN219931566U (en) | Climbing frame lifting mechanism | |
| CN115821737B (en) | Highway bridge engineering expansion joint detection device and use method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |