CN102359071B - Steel truss girder multi-point synchronous incremental launching control device and continuous relay construction method - Google Patents
Steel truss girder multi-point synchronous incremental launching control device and continuous relay construction method Download PDFInfo
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- CN102359071B CN102359071B CN2011102121134A CN201110212113A CN102359071B CN 102359071 B CN102359071 B CN 102359071B CN 2011102121134 A CN2011102121134 A CN 2011102121134A CN 201110212113 A CN201110212113 A CN 201110212113A CN 102359071 B CN102359071 B CN 102359071B
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Abstract
The invention discloses a steel truss girder multi-point synchronous incremental launching control device, which comprises a main control unit, a field control unit, a hydraulic station, a control cabinet, continuous jacks and a displacement sensor component, wherein each pier is provided with a front continuous jack and a rear continuous jack; the front continuous jack and the rear continuous jack are used for connecting and dragging first and second steel strand groups through anchorage devices; each front continuous jack and each rear continuous jack respectively correspond to a control assembly comprising a field control unit, a hydraulic station and a control cabinet, and respectively correspond to a displacement sensor module. The invention also provides a steel truss girder multi-point synchronous incremental launching continuous relay construction method. When the method is matched with the device, front and rear continuous jacks on a plurality of piers can be controlled simultaneously, and the steel truss girder multi-point synchronous incremental launching construction is realized. The invention also provides a steel truss girder multi-point synchronous incremental launching continuous relay construction method.
Description
Technical field:
The present invention relates to technical field of bridge construction, relate in particular to a kind of steel truss girder incremental launching construction by multipoint jacking control device and endless relay job practices.
Background technology:
China's infrastructure construction is further accelerated, need the project of construction increasing, particularly the Railway Steel Truss beam bridge is more and more, is the needs that adapt to the China railways great-leap-forward development, require steel truss girder to set up the new technology of need employing new technology, could be in the time limit of expection high-quality finishing the duration.
At present, the large-span steel trusses sets up the job practices of general employing free cantilever erection, dilatory, pushing tow, the free cantilever erection construction, and its shortcoming is that the construction period is long, and the equipment of input is many, and steel truss girder sets up difficult quality guarantee, and security risk is bigger in constructing simultaneously; Segment lifting needs heavy mechanical equipment to transport and lifts by crane, and existing steel truss girder is dilatory, incremental launching construction also is confined to utilize the existing railway longeron as elongated continuous slideway, this just requires the stressed of slideway can not be too big, can not be too big thereby also limited the pushing tow span, and for the orthotropic plate bridge floor of no longeron, just do not have longeron to utilize at all, just can't carry out incremental launching construction yet.Present steel truss girder bridge span is big, each bridge pier place needs to arrange incremental launching device, carry out synchronous push, and the present control device that synchronous push is not arranged as yet, if a kind of steel truss girder incremental launching construction by multipoint jacking control device and a kind of steel truss girder incremental launching construction by multipoint jacking endless relay job practices can be provided, with solving present predicament, guarantee construction quality, simultaneously, improve speed of application.
Summary of the invention:
The purpose of this invention is to provide a kind of steel truss girder incremental launching construction by multipoint jacking control device, with control multi-point pushing device synchronization pushing tow, to guarantee the steel truss girder construction quality, improve speed of application; The present invention also provides a kind of steel truss girder incremental launching construction by multipoint jacking endless relay job practices that cooperates above-mentioned steel truss girder incremental launching construction by multipoint jacking control device.
A kind of steel truss girder incremental launching construction by multipoint jacking control device, wherein: comprise main control unit, field control unit, Hydraulic Station, switch board, continuous jack, displacement sensor component, wherein, each bridge pier arranges a continuous jack in front portion, the continuous jack in rear portion, and anterior jack, the continuous jack in rear portion continuously are respectively applied to connect by ground tackle first, second steel strand group of dilatory steel truss girder; Each anterior jack, the continuous jack in each rear portion continuously be corresponding Control Component that comprises field control unit, Hydraulic Station and switch board respectively, each anterior jack continuously, the respectively corresponding displacement sensor component of the continuous jack in each rear portion; The communication terminal of main control unit connects the communication terminal of each field control unit, the hydraulic control signal output of each field control unit connects corresponding Hydraulic Station control signal input, the power control signal output of each field control unit connects the power control signal input of corresponding switch board, the Hydraulic Station power supply output of switch board connects the power supply input of Hydraulic Station, the jack power supply output of switch board connects the corresponding power supply input of jack continuously, the status signal output of Hydraulic Station connects the Hydraulic Station status signal input of corresponding field control unit, each displacement sensor component is equipped with in corresponding jack continuously, and the signal output part of each displacement sensor component connects the jack displacement signal input of corresponding field control unit.
A kind of steel truss girder incremental launching construction by multipoint jacking endless relay job practices that adopts described steel truss girder incremental launching construction by multipoint jacking control device, wherein: specifically comprise the steps:
A), main control unit sends enabling signal to primary scene control module and the secondary scene control module of corresponding bridge pier, after primary scene control module and secondary scene control module are received, enter starting state: at first, the signal that primary scene control module and secondary scene control module transmit according to corresponding displacement sensor component, judge the continuous jack in current front portion, the position of the continuous jack in rear portion, the continuous jack in rear portion is not on initial position if judgement draws anterior jack continuously, the primary scene control module or/and secondary scene control module to first Hydraulic Station, first switch board is or/and second Hydraulic Station, second switch board sends control signal, the anterior jack continuously of control is or/and the continuous jack in rear portion is got back to initial position, afterwards, carry out next action; If judge to draw anterior jack continuously and the continuous jack in rear portion all on initial position, carry out next action;
Afterwards, main control unit sends control signal respectively to primary scene control module and secondary scene control module, drive the control of first Hydraulic Station, first switch board and second Hydraulic Station, second switch board by primary scene control module and secondary scene control module and open the anterior ground tackle of jack, the continuous jack in rear portion continuously, carry out the preparation of endless relay action; Afterwards, enter step b);
B), main control unit sends the driving signal to the primary scene control module, after the primary scene control module is received, control first Hydraulic Station, first switch board drives anterior jack continuously and advances with the first speed forward pushing tow, simultaneously, the primary scene control module drives first Hydraulic Station, first switch board control be equipped with on the continuous jack in front portion before hold out against the energising of anchor electromagnetic valve, the first steel strand group that wears on the continuous jack in front portion is fastening, advance to spur the first steel strand group, thereby the steel truss girder that spurs the connection of the first steel strand group other end moves forward; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior pushing tow position of jack continuously in real time, and the anterior pushing tow position signalling of jack continuously that monitors is sent to the primary scene control module, whether the pushing tow position of the continuous jack in the current front portion of control module real-time judge, primary scene arrives the relay point, arrive the relay point if judge the pushing tow position that draws anterior jack continuously, the primary scene control module sends the front portion signal of the pushing tow position arrival relay point of jack continuously to main control unit, enters step c);
C), main control unit sends control signal to primary scene control module, secondary scene control module simultaneously:
Drive the unit, primary scene and send control signal to first Hydraulic Station, first switch board, the anterior jack continuously of control advances with second speed forward pushing tow, and second speed is less than first speed; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior pushing tow position of jack continuously in real time, and the anterior pushing tow position signalling of jack continuously that monitors is sent to the primary scene control module, whether the pushing tow position of the continuous jack in the current front portion of control module real-time judge, primary scene arrives forward extreme position foremost, arrive forward extreme position foremost if judge the pushing tow position that draws anterior jack continuously, the primary scene control module arrives the forward signal of extreme position foremost to the pushing tow position that main control unit sends anterior jack continuously; Main control unit receives that the pushing tow position of the anterior jack continuously that the primary scene control module sends arrives forward foremost behind the signal of extreme position, drive the unit, primary scene and send control signal to first Hydraulic Station, first switch board, the anterior jack continuously of control with first velocity reversal's retraction movement to return; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior position of jack continuously in real time, and the anterior position signalling of jack continuously that monitors is sent to the primary scene control module, whether the continuous jack in the current front portion of control module real-time judge, primary scene returns initial position, if judge that drawing anterior jack has continuously returned initial position, the primary scene control module sends the signal that anterior jack has continuously returned initial position to main control unit; Afterwards, enter step d);
Driving secondary scene control module is controlled second Hydraulic Station, second switch board advances with the first speed forward pushing tow to drive the continuous jack in rear portion, simultaneously, secondary scene control module drive the control of second Hydraulic Station, second switch board be equipped with on the continuous jack in rear portion before hold out against the energising of anchor electromagnetic valve, the second steel strand group that wears on the continuous jack in rear portion is fastening, advance to spur the second steel strand group, thereby the steel truss girder that spurs the connection of the second steel strand group other end moves forward; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the forward pushing tow position of the continuous jack in rear portion in real time, and the forward pushing tow position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, whether secondary scene control module real-time judge arrives the relay point when the forward pushing tow position of the continuous jack in front and rear part, arrive the relay point if judge the forward pushing tow position that draws the continuous jack in rear portion, secondary scene control module arrives the signal of relay point to the forward pushing tow position that main control unit sends the continuous jack in rear portion, enter step d);
D), after the position that main control unit obtains the anterior jack continuously that the primary scene control module sends arrives the signal of initial position, stop the driving to the continuous jack in front portion, receive that up to main control unit the pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives the signal of relay point, at this moment, main control unit sends control signal to the primary scene control module, drive first Hydraulic Station by the primary scene control module, the anterior ground tackle of jack is continuously opened in the control of first switch board, discharge the first steel strand group, carry out the preparation of next relay action, so that when next relay is moved, the retighten first steel strand group, make first steel strand group pulling steel truss girder continue mobile, afterwards, main control unit sends control signal to the primary scene control module, drives first Hydraulic Station by the primary scene control module, first switch board enters the next round pushing tow, the action of returning;
Simultaneously, after main control unit receives that the forward pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives the signal of relay point, drive unit, the secondary scene and send control signal to second Hydraulic Station, second switch board, the continuous jack in control rear portion advances with second speed forward pushing tow; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the forward pushing tow position of the continuous jack in rear portion in real time, and the forward pushing tow position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, whether secondary scene control module real-time judge arrives forward extreme position foremost when the forward pushing tow position of the continuous jack in front and rear part, arrive forward extreme position foremost if judge the pushing tow position that draws the continuous jack in rear portion, secondary scene control module arrives the forward signal of extreme position foremost to the forward pushing tow position that main control unit sends the continuous jack in rear portion; Main control unit receives that the forward pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives forward foremost behind the signal of extreme position, drive unit, the secondary scene and send control signal to second Hydraulic Station, second switch board, the continuous jack in control rear portion with the reverse retraction movement of second speed to return; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the position of the continuous jack in rear portion in real time, and the position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, secondary scene control module real-time judge is worked as the continuous jack in front and rear part and whether is returned initial position, if judge that drawing the continuous jack in rear portion returns initial position, secondary scene control module sends the signal that the continuous jack in rear portion returns initial position to main control unit; After main control unit obtains the continuous jack in rear portion that secondary scene control module sends and returns the signal of initial position, stop the driving to the continuous jack in rear portion, receive that up to main control unit the forward pushing tow position of the anterior jack continuously that the primary scene control module is sent arrives the signal of relay point, at this moment, main control unit sends control signal to secondary scene control module, drive second Hydraulic Station by secondary scene control module, the ground tackle of the continuous jack in rear portion is opened in the control of second switch board, discharge the second steel strand group, carry out the preparation of next relay action, so that when next relay is moved, the retighten second steel strand group makes second steel strand group pulling steel truss girder continue mobile; Afterwards, main control unit sends control signal to secondary scene control module, drives the action that second Hydraulic Station, second switch board enter the next round pushing tow, return by secondary scene control module;
The operation signal of sending by control panel that stops the endless relay construction is received in so circulation up to main control unit.
The present invention will reach following technique effect after adopting technique scheme:
Steel truss girder incremental launching construction by multipoint jacking control device of the present invention cooperates steel truss girder incremental launching construction by multipoint jacking endless relay job practices of the present invention, can control the continuous jack in front portion, rear portion that arranges on a plurality of bridge piers simultaneously, realize the construction of steel truss girder incremental launching construction by multipoint jacking, compared to existing technology, improve the construction quality of steel truss girder, and the raising speed of application, be a kind of control device and job practices of innovation.
Description of drawings:
Fig. 1 is the structure principle chart of steel truss girder incremental launching construction by multipoint jacking control device of the present invention;
Fig. 2 is the process control flow figure of steel truss girder incremental launching construction by multipoint jacking endless relay job practices of the present invention.
The specific embodiment:
A kind of steel truss girder incremental launching construction by multipoint jacking control device of the present invention, comprise main control unit, field control unit, Hydraulic Station, switch board, continuous jack, displacement sensor component, wherein, each bridge pier arranges a continuous jack in front portion, the continuous jack in rear portion, and anterior jack, the continuous jack in rear portion continuously are respectively applied to connect by ground tackle first, second steel strand group of dilatory steel truss girder; Each anterior jack, the continuous jack in each rear portion continuously be corresponding Control Component that comprises field control unit, Hydraulic Station and switch board respectively, each anterior jack continuously, the respectively corresponding displacement sensor component of the continuous jack in each rear portion; The communication terminal of main control unit connects the communication terminal of each field control unit, the hydraulic control signal output of each field control unit connects corresponding Hydraulic Station control signal input, the power control signal output of each field control unit connects the power control signal input of corresponding switch board, the Hydraulic Station power supply output of switch board connects the power supply input of Hydraulic Station, the jack power supply output of switch board connects the corresponding power supply input of jack continuously, the status signal output of Hydraulic Station connects the Hydraulic Station status signal input of corresponding field control unit, each displacement sensor component is equipped with in corresponding jack continuously, and the signal output part of each displacement sensor component connects the jack displacement signal input of corresponding field control unit.
Fig. 1 shows anterior jack continuously, the continuous jack in rear portion and the corresponding anterior syndeton of secondary scene control module, second Hydraulic Station, second switch board and second displacement sensor component of the continuous jack of syndeton and corresponding rear portion of primary scene control module, first Hydraulic Station, first switch board and first displacement sensor component of jack continuously of a bridge pier, and the syndeton of main control unit and first, second field control unit.
The present invention also provides a kind of steel truss girder incremental launching construction by multipoint jacking endless relay job practices that adopts aforementioned steel truss girder incremental launching construction by multipoint jacking control device, as Fig. 2 flow chart, specifically comprises the steps:
A), main control unit sends enabling signal to primary scene control module and the secondary scene control module of corresponding bridge pier, after primary scene control module and secondary scene control module are received, enter starting state: at first, the signal that primary scene control module and secondary scene control module transmit according to corresponding displacement sensor component, judge the continuous jack in current front portion, the position of the continuous jack in rear portion, the continuous jack in rear portion is not on initial position if judgement draws anterior jack continuously, the primary scene control module or/and secondary scene control module to first Hydraulic Station, first switch board is or/and second Hydraulic Station, second switch board sends control signal, the anterior jack continuously of control is or/and the continuous jack in rear portion is got back to initial position, afterwards, carry out next action; If judge to draw anterior jack continuously and the continuous jack in rear portion all on initial position, carry out next action;
Afterwards, main control unit sends control signal respectively to primary scene control module and secondary scene control module, drive the control of first Hydraulic Station, first switch board and second Hydraulic Station, second switch board by primary scene control module and secondary scene control module and open the anterior ground tackle of jack, the continuous jack in rear portion continuously, carry out the preparation of endless relay action; Afterwards, enter step b);
B), main control unit sends the driving signal to the primary scene control module, after the primary scene control module is received, control first Hydraulic Station, first switch board drives anterior jack continuously and advances with the first speed forward pushing tow, simultaneously, the primary scene control module drives first Hydraulic Station, first switch board control be equipped with on the continuous jack in front portion before hold out against the energising of anchor electromagnetic valve, the first steel strand group that wears on the continuous jack in front portion is fastening, advance to spur the first steel strand group, thereby the steel truss girder that spurs the connection of the first steel strand group other end moves forward; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior pushing tow position of jack continuously in real time, and the anterior pushing tow position signalling of jack continuously that monitors is sent to the primary scene control module, whether the pushing tow position of the continuous jack in the current front portion of control module real-time judge, primary scene arrives the relay point, arrive the relay point if judge the pushing tow position that draws anterior jack continuously, the primary scene control module sends the front portion signal of the pushing tow position arrival relay point of jack continuously to main control unit, enters step c);
C), main control unit sends control signal to primary scene control module, secondary scene control module simultaneously:
Drive the unit, primary scene and send control signal to first Hydraulic Station, first switch board, the anterior jack continuously of control advances with second speed forward pushing tow, and second speed is less than first speed; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior pushing tow position of jack continuously in real time, and the anterior pushing tow position signalling of jack continuously that monitors is sent to the primary scene control module, whether the pushing tow position of the continuous jack in the current front portion of control module real-time judge, primary scene arrives forward extreme position foremost, arrive forward extreme position foremost if judge the pushing tow position that draws anterior jack continuously, the primary scene control module arrives the forward signal of extreme position foremost to the pushing tow position that main control unit sends anterior jack continuously; Main control unit receives that the pushing tow position of the anterior jack continuously that the primary scene control module sends arrives forward foremost behind the signal of extreme position, drive the unit, primary scene and send control signal to first Hydraulic Station, first switch board, the anterior jack continuously of control with first velocity reversal's retraction movement to return; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior position of jack continuously in real time, and the anterior position signalling of jack continuously that monitors is sent to the primary scene control module, whether the continuous jack in the current front portion of control module real-time judge, primary scene returns initial position, if judge that drawing anterior jack has continuously returned initial position, the primary scene control module sends the signal that anterior jack has continuously returned initial position to main control unit; Afterwards, enter step d);
Driving secondary scene control module is controlled second Hydraulic Station, second switch board advances with the first speed forward pushing tow to drive the continuous jack in rear portion, simultaneously, secondary scene control module drive the control of second Hydraulic Station, second switch board be equipped with on the continuous jack in rear portion before hold out against the energising of anchor electromagnetic valve, the second steel strand group that wears on the continuous jack in rear portion is fastening, advance to spur the second steel strand group, thereby the steel truss girder that spurs the connection of the second steel strand group other end moves forward; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the forward pushing tow position of the continuous jack in rear portion in real time, and the forward pushing tow position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, whether secondary scene control module real-time judge arrives the relay point when the forward pushing tow position of the continuous jack in front and rear part, arrive the relay point if judge the forward pushing tow position that draws the continuous jack in rear portion, secondary scene control module arrives the signal of relay point to the forward pushing tow position that main control unit sends the continuous jack in rear portion, enter step d);
D), after the position that main control unit obtains the anterior jack continuously that the primary scene control module sends arrives the signal of initial position, stop the driving to the continuous jack in front portion, receive that up to main control unit the pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives the signal of relay point, at this moment, main control unit sends control signal to the primary scene control module, drive first Hydraulic Station by the primary scene control module, the anterior ground tackle of jack is continuously opened in the control of first switch board, discharge the first steel strand group, carry out the preparation of next relay action, so that when next relay is moved, the retighten first steel strand group, make first steel strand group pulling steel truss girder continue mobile, afterwards, main control unit sends control signal to the primary scene control module, drives first Hydraulic Station by the primary scene control module, first switch board enters the next round pushing tow, the action of returning;
Simultaneously, after main control unit receives that the forward pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives the signal of relay point, drive unit, the secondary scene and send control signal to second Hydraulic Station, second switch board, the continuous jack in control rear portion advances with second speed forward pushing tow; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the forward pushing tow position of the continuous jack in rear portion in real time, and the forward pushing tow position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, whether secondary scene control module real-time judge arrives forward extreme position foremost when the forward pushing tow position of the continuous jack in front and rear part, arrive forward extreme position foremost if judge the pushing tow position that draws the continuous jack in rear portion, secondary scene control module arrives the forward signal of extreme position foremost to the forward pushing tow position that main control unit sends the continuous jack in rear portion; Main control unit receives that the forward pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives forward foremost behind the signal of extreme position, drive unit, the secondary scene and send control signal to second Hydraulic Station, second switch board, the continuous jack in control rear portion with the reverse retraction movement of second speed to return; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the position of the continuous jack in rear portion in real time, and the position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, secondary scene control module real-time judge is worked as the continuous jack in front and rear part and whether is returned initial position, if judge that drawing the continuous jack in rear portion returns initial position, secondary scene control module sends the signal that the continuous jack in rear portion returns initial position to main control unit; After main control unit obtains the continuous jack in rear portion that secondary scene control module sends and returns the signal of initial position, stop the driving to the continuous jack in rear portion, receive that up to main control unit the forward pushing tow position of the anterior jack continuously that the primary scene control module is sent arrives the signal of relay point, at this moment, main control unit sends control signal to secondary scene control module, drive second Hydraulic Station by secondary scene control module, the ground tackle of the continuous jack in rear portion is opened in the control of second switch board, discharge the second steel strand group, carry out the preparation of next relay action, so that when next relay is moved, the retighten second steel strand group makes second steel strand group pulling steel truss girder continue mobile; Afterwards, main control unit sends control signal to secondary scene control module, drives the action that second Hydraulic Station, second switch board enter the next round pushing tow, return by secondary scene control module;
The operation signal of sending by control panel that stops the endless relay construction is received in so circulation up to main control unit.
As fully visible, steel truss girder incremental launching construction by multipoint jacking control device of the present invention cooperates steel truss girder incremental launching construction by multipoint jacking endless relay job practices of the present invention, can control the continuous jack in front portion, rear portion that arranges on a plurality of bridge piers simultaneously, realize the steel truss girder incremental launching construction by multipoint jacking construction of Longspan Bridge, compared to existing technology, technical solution of the present invention can improve the construction quality of steel truss girder, and improves speed of application, is a kind of control device and job practices of innovation.
Claims (2)
1. steel truss girder incremental launching construction by multipoint jacking control device, it is characterized in that: comprise main control unit, field control unit, Hydraulic Station, switch board, continuous jack and displacement sensor component, wherein, each bridge pier arranges a continuous jack in front portion, the continuous jack in rear portion, anterior jack continuously, anterior jack continuously are used for connecting by ground tackle the first steel strand group of dilatory steel truss girder, and the continuous jack in rear portion is used for connecting by ground tackle the second steel strand group of dilatory steel truss girder; Each anterior jack, the continuous jack in each rear portion continuously be corresponding Control Component that comprises field control unit, Hydraulic Station and switch board respectively, each anterior jack continuously, the respectively corresponding displacement sensor component of the continuous jack in each rear portion; The communication terminal of main control unit connects the communication terminal of each field control unit, the hydraulic control signal output of each field control unit connects corresponding Hydraulic Station control signal input, the power control signal output of each field control unit connects the power control signal input of corresponding switch board, the Hydraulic Station power supply output of switch board connects the power supply input of Hydraulic Station, the jack power supply output of switch board connects the corresponding power supply input of jack continuously, the status signal output of Hydraulic Station connects the Hydraulic Station status signal input of corresponding field control unit, each displacement sensor component is equipped with corresponding jack continuously, and the signal output part of each displacement sensor component connects the jack displacement signal input of corresponding field control unit.
2. a steel truss girder incremental launching construction by multipoint jacking endless relay job practices that adopts the described steel truss girder incremental launching construction by multipoint jacking of claim 1 control device is characterized in that: specifically comprise the steps:
A), main control unit sends enabling signal to primary scene control module and the secondary scene control module of corresponding bridge pier, after primary scene control module and secondary scene control module are received, enter starting state: at first, the signal that primary scene control module and secondary scene control module transmit according to corresponding displacement sensor component, judge the continuous jack in current front portion, the position of the continuous jack in rear portion, the continuous jack in rear portion is not on initial position if judgement draws anterior jack continuously, the primary scene control module or/and secondary scene control module to first Hydraulic Station, first switch board is or/and second Hydraulic Station, second switch board sends control signal, the anterior jack continuously of control is or/and the continuous jack in rear portion is got back to initial position, afterwards, carry out next action; If judge to draw anterior jack continuously and the continuous jack in rear portion all on initial position, carry out next action;
Afterwards, main control unit sends control signal respectively to primary scene control module and secondary scene control module, drive the control of first Hydraulic Station, first switch board and second Hydraulic Station, second switch board by primary scene control module and secondary scene control module and open the anterior ground tackle of jack, the continuous jack in rear portion continuously, carry out the preparation of endless relay action; Afterwards, enter step b);
B), main control unit sends the driving signal to the primary scene control module, after the primary scene control module is received, control first Hydraulic Station, first switch board drives anterior jack continuously and advances with the first speed forward pushing tow, simultaneously, the primary scene control module drives first Hydraulic Station, first switch board control be equipped with on the continuous jack in front portion before hold out against the energising of anchor electromagnetic valve, the first steel strand group that wears on the continuous jack in front portion is fastening, advance to spur the first steel strand group, thereby the steel truss girder that spurs the connection of the first steel strand group other end moves forward; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior pushing tow position of jack continuously in real time, and the anterior pushing tow position signalling of jack continuously that monitors is sent to the primary scene control module, whether the pushing tow position of the continuous jack in the current front portion of control module real-time judge, primary scene arrives the relay point, arrive the relay point if judge the pushing tow position that draws anterior jack continuously, the primary scene control module sends the front portion signal of the pushing tow position arrival relay point of jack continuously to main control unit, enters step c);
C), main control unit sends control signal to primary scene control module, secondary scene control module simultaneously:
Drive the unit, primary scene and send control signal to first Hydraulic Station, first switch board, the anterior jack continuously of control advances with second speed forward pushing tow, and second speed is less than first speed; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior pushing tow position of jack continuously in real time, and the anterior pushing tow position signalling of jack continuously that monitors is sent to the primary scene control module, whether the pushing tow position of the continuous jack in the current front portion of control module real-time judge, primary scene arrives forward extreme position foremost, arrive forward extreme position foremost if judge the pushing tow position that draws anterior jack continuously, the primary scene control module arrives the forward signal of extreme position foremost to the pushing tow position that main control unit sends anterior jack continuously; Main control unit receives that the pushing tow position of the anterior jack continuously that the primary scene control module sends arrives forward foremost behind the signal of extreme position, drive the unit, primary scene and send control signal to first Hydraulic Station, first switch board, the anterior jack continuously of control with first velocity reversal's retraction movement to return; Simultaneously, the anterior displacement sensor component of jack correspondence is continuously monitored the anterior position of jack continuously in real time, and the anterior position signalling of jack continuously that monitors is sent to the primary scene control module, whether the continuous jack in the current front portion of control module real-time judge, primary scene returns initial position, if judge that drawing anterior jack has continuously returned initial position, the primary scene control module sends the signal that anterior jack has continuously returned initial position to main control unit; Afterwards, enter step d);
Driving secondary scene control module is controlled second Hydraulic Station, second switch board advances with the first speed forward pushing tow to drive the continuous jack in rear portion, simultaneously, secondary scene control module drive the control of second Hydraulic Station, second switch board be equipped with on the continuous jack in rear portion before hold out against the energising of anchor electromagnetic valve, the second steel strand group that wears on the continuous jack in rear portion is fastening, advance to spur the second steel strand group, thereby the steel truss girder that spurs the connection of the second steel strand group other end moves forward; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the forward pushing tow position of the continuous jack in rear portion in real time, and the forward pushing tow position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, whether secondary scene control module real-time judge arrives the relay point when the forward pushing tow position of the continuous jack in front and rear part, arrive the relay point if judge the forward pushing tow position that draws the continuous jack in rear portion, secondary scene control module arrives the signal of relay point to the forward pushing tow position that main control unit sends the continuous jack in rear portion, enter step d);
D), after the position that main control unit obtains the anterior jack continuously that the primary scene control module sends arrives the signal of initial position, stop the driving to the continuous jack in front portion, receive that up to main control unit secondary scene control module arrives the signal of relay point to the pushing tow position of the continuous jack of sending in rear portion, at this moment, main control unit sends control signal to the primary scene control module, drive first Hydraulic Station by the primary scene control module, the anterior ground tackle of jack is continuously opened in the control of first switch board, discharge the first steel strand group, carry out the preparation of next relay action, so that when next relay is moved, the retighten first steel strand group, make first steel strand group pulling steel truss girder continue mobile, afterwards, main control unit sends control signal to the primary scene control module, drives first Hydraulic Station by the primary scene control module, first switch board enters the next round pushing tow, the action of returning;
Simultaneously, after main control unit receives that the forward pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives the signal of relay point, drive unit, the secondary scene and send control signal to second Hydraulic Station, second switch board, the continuous jack in control rear portion advances with second speed forward pushing tow; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the forward pushing tow position of the continuous jack in rear portion in real time, and the forward pushing tow position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, whether secondary scene control module real-time judge arrives forward extreme position foremost when the forward pushing tow position of the continuous jack in front and rear part, arrive forward extreme position foremost if judge the pushing tow position that draws the continuous jack in rear portion, secondary scene control module arrives the forward signal of extreme position foremost to the forward pushing tow position that main control unit sends the continuous jack in rear portion; Main control unit receives that the forward pushing tow position of the continuous jack in rear portion that secondary scene control module is sent arrives forward foremost behind the signal of extreme position, drive unit, the secondary scene and send control signal to second Hydraulic Station, second switch board, the continuous jack in control rear portion with the reverse retraction movement of second speed to return; Simultaneously, the displacement sensor component of the continuous jack correspondence in rear portion is monitored the position of the continuous jack in rear portion in real time, and the position signalling of the continuous jack in rear portion that monitors is sent to secondary scene control module, secondary scene control module real-time judge is worked as the continuous jack in front and rear part and whether is returned initial position, if judge that drawing the continuous jack in rear portion returns initial position, secondary scene control module sends the signal that the continuous jack in rear portion returns initial position to main control unit; After main control unit obtains the continuous jack in rear portion that secondary scene control module sends and returns the signal of initial position, stop the driving to the continuous jack in rear portion, receive that up to main control unit the forward pushing tow position of the anterior jack continuously that the primary scene control module is sent arrives the signal of relay point, at this moment, main control unit sends control signal to secondary scene control module, drive second Hydraulic Station by secondary scene control module, the ground tackle of the continuous jack in rear portion is opened in the control of second switch board, discharge the second steel strand group, carry out the preparation of next relay action, so that when next relay is moved, the retighten second steel strand group makes second steel strand group pulling steel truss girder continue mobile; Afterwards, main control unit sends control signal to secondary scene control module, drives the action that second Hydraulic Station, second switch board enter the next round pushing tow, return by secondary scene control module;
The operation signal of sending by control panel that stops the endless relay construction is received in so circulation up to main control unit.
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| CN2011102121134A CN102359071B (en) | 2011-07-27 | 2011-07-27 | Steel truss girder multi-point synchronous incremental launching control device and continuous relay construction method |
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| CN2011102121134A CN102359071B (en) | 2011-07-27 | 2011-07-27 | Steel truss girder multi-point synchronous incremental launching control device and continuous relay construction method |
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| CN102642790B (en) * | 2012-04-19 | 2015-10-14 | 赵皓 | A kind of computer-controlled hydraulic jacking system |
| CN103161127B (en) * | 2013-03-05 | 2015-06-10 | 唐述林 | Steel truss girder dragging construction intelligent measure and control method and system |
| CN103510475B (en) * | 2013-09-27 | 2015-09-23 | 中铁大桥局集团有限公司 | Three main truss steel truss girder simply connected twin spans are without nose girder long distance push construction method |
| CN107815975B (en) * | 2017-11-28 | 2023-06-09 | 江西乔田重工有限公司 | Multi-point synchronous pushing device based on independent non-rigid pier for multi-connected multi-span steel girder and construction method |
| CN107858932B (en) * | 2017-11-28 | 2023-09-29 | 江西乔田重工有限公司 | Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof |
| CN116240826B (en) * | 2023-05-06 | 2023-07-14 | 四川省公路规划勘察设计研究院有限公司 | Reset pushing system and deviation correcting method thereof |
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| DE3322951A1 (en) * | 1983-06-25 | 1985-01-03 | Johannes Dörnen, Stahlbauwerk, 4600 Dortmund | Truss bridge and method for producing it |
| CN101831874B (en) * | 2010-05-27 | 2011-08-03 | 中铁大桥局集团第一工程有限公司 | Multipoint synchronous push construction method for porous large-span continuous steel truss girder |
| CN101906755B (en) * | 2010-09-06 | 2012-07-04 | 中铁大桥局集团有限公司 | Three-truss continuous steel truss girder pushing device and arrangement method thereof |
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