CN105155418B - A kind of construction method of bridge translation - Google Patents

A kind of construction method of bridge translation Download PDF

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Publication number
CN105155418B
CN105155418B CN201510501403.9A CN201510501403A CN105155418B CN 105155418 B CN105155418 B CN 105155418B CN 201510501403 A CN201510501403 A CN 201510501403A CN 105155418 B CN105155418 B CN 105155418B
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bridge
old
translation
pier stud
new
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CN105155418A (en
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孙九春
王波东
薛武强
王建忠
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TENGDA CONSTRUCTION GROUP CO Ltd
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TENGDA CONSTRUCTION GROUP CO Ltd
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Abstract

The invention discloses the construction method of a kind of bridge translation, comprise the following steps: first arrange new address pier stud and set up job platform, the old site pier stud surrounding at bridge sets up steel pipe and full hall scaffold;Next sets up slideway between new old site, sets up slideway between the new old site of Steel Space Truss structure between new address pier stud and old site pier stud;Again carry out bridge Integral synchronous jacking, the whole bridge of jack pair is installed at the pier stud of each old site and carries out synchronization of jacking up;Then releasing old support restraint, jacking postpones to specific bit, takes out old bearing, releases its constraint to bridge;Then, translation driving mechanism is installed, shoes is installed below bridge, remove jack, and counter force system is installed at the bridge pier of old site;Finally carry out bridge Integral synchronous translation, remove described translation driving mechanism, new bearing is installed, bridge is carried out Integral synchronous landing, complete the integral shift work of bridge.The synchronicity error of the present invention is within ± 2mm, and parameter control method is unique, effect is notable.

Description

A kind of construction method of bridge translation
Technical field
Present invention relates particularly to the construction method of a kind of bridge translation.
Background technology
Along with social economy's high speed development, urban traffic amount increases day by day, and the bridge road in urban district will face more and more tighter High test.For alleviate traffic pressure, Urban Bridge road certainly will be planned again, wherein, part across boat bridge because of Planning requirement cannot be met, remove, by facing, the situation rebuild.
Intact for bridge structure function, and indices remain to meet use require bridge, as carry out remove rebuild, Not only shorten the service life of bridge, cause the huge wasting of resources, and manpower consumption is big, long in time limit, capital expenditure is high, Also the normal navigation in navigation channel under bridge can be affected.For problem above, currently used method is to combine road overall planning, In certain limit, bridge is implemented integral shift so that it is retained and be continuing with.But existing bridge shift method leads to Often complex procedures, operation easier is high, efficiency is low and security performance has much room for improvement, and fails conscientiously to meet practical application request.
Summary of the invention
The present invention is in order to overcome above deficiency, it is provided that a kind of operation is simple, operation easier is low, efficiency is high and safe and reliable Bridge translation construction method.
In order to solve above-mentioned technical problem, the technical scheme is that the construction method that a kind of bridge translates, including with Lower step:
S1: arrange new address pier stud and set up job platform, the old site pier stud surrounding at bridge sets up steel pipe and full hall foot hands Frame;
S2: set up slideway between new old site, sets up the new and old of Steel Space Truss structure between new address pier stud and old site pier stud Slideway between location;
S3: bridge Integral synchronous jacking, installs the whole bridge of jack pair at the pier stud of each old site and carries out synchronization of jacking up;
S4: release old support restraint, jacking postpones to specific bit, takes out old bearing, releases its constraint to bridge;
S5: install translation driving mechanism, installs shoes below bridge, removes jack, and installs at the bridge pier of old site Counter force system;
S6: bridge Integral synchronous translates, and described translation driving mechanism applies thrust by bridge by slideway between new old site Move integrally to new address pier stud correspondence position;
S7: bridge Integral synchronous lands, and removes described translation driving mechanism, installs new bearing, carries out bridge overall same Step landing, to complete the integral shift work of bridge.
Further, in described step S1, described steel pipe top lays plywood, and its surrounding hangs safety net.
Further, in described step S2, described Steel Space Truss is connected with old site pier stud by post-anchoring technology.
Further, in described step S3, described jack is hydraulic jack, and each described jack is provided with hydraulic pressure Lock and etc. the most assembling steel cushion block.
Further, in described step S3, it is additionally included at the bridge pier of old site and Displacement monitor system is set, set in the middle part of bridge Put stress monitoring system, and in bridge surface configuration plan-position monitoring system.
Further, in described step S5, described shoes is hydraulic suspension floating shoes, slideway between described shoes and new old site Contact surface be provided with polyethylene tetrafluoro plate and corrosion resistant plate.
Further, in described step S5, the installation process of counter force system is: arrange steel corbel, institute on the pier stud of old site State steel corbel to be connected by rear screw rod and old site pier stud are fixing.
Further, in described step S6, bridge Integral synchronous translation motion is controlled in real time by pushing tow control system System, described pushing tow control system uses variable-frequency governor.
Further, in described step S3 or S7, described jacking or descent use PLC hydraulic synchronization lifting to control system System is controlled.
Further, step S8 is also included: remove slideway and job platform between new old site.
The construction method of the bridge translation that the present invention provides, by setting up slideway between the new old site of Steel Space Truss structure, And translation driving mechanism is installed below bridge, the flatness of slideway end face between new old site and the rigidity of slideway can not only be ensured, Realize overall steadily the moving of bridge, and to synchronization of jacking up and synchronize to land by PLC hydraulic synchronization lifting control system Process accurately controls, synchronicity error can be controlled in ± 2mm within, and parameter control method is unique, and effect is notable.This Bright operation is simple, time consumption is few, conscientiously meets practical application request.
Accompanying drawing explanation
Fig. 1 is the construction method flow chart of bridge of the present invention translation.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, the invention provides the construction method of a kind of bridge translation, comprise the following steps:
S1: arrange new address pier stud and set up job platform, the old site pier stud surrounding at bridge sets up steel pipe and full hall foot hands Frame;Preferably, steel pipe top lays plywood, and its surrounding hangs safety net.Concrete, determine bridge according to urban planning scheme New address after translation, arranges some new addresses pier stud (i.e. bridge of supporting bridge according to parameters such as the sizes of bridge at new address Platform);The total departure advance of the full hall scaffold vertical rod of the old site pier stud surrounding of bridge is 1.2m, and step pitch is 1.2~1.5m, takes Require during if vertical rod is inserted river bed, it is ensured that it is by force intensity;Lay plywood in steel pipe top, and hang in its surrounding Safety net, not only increases the convenient degree of bridge jacking and translation, and ensure that working security.
S2: set up slideway between new old site, sets up the new and old of Steel Space Truss structure between new address pier stud and old site pier stud Slideway between location;Preferably, Steel Space Truss is connected with old site pier stud by post-anchoring technology.Concrete, the height of Steel Space Truss For 3m, a width of 1.25m.The top boom of Steel Space Truss, lower boom, web member and horizon bar all use Q345BH shaped steel;Steel Space Truss is connected with concrete old site pier stud by post-anchoring technology, is i.e. connected by high extensive chemical screw rod, uses friction machinery Boring, aperture and the degree of depth set according to specific requirement.The assembling process of Steel Space Truss is: first pass through bolt, nut fixes steel Bracket rest, then lower boom and top boom are installed, then assemble horizon bar and web member, finally weld lower boom, top boom and bury Connecting plate between plate.
S3: bridge Integral synchronous jacking, installs the whole bridge of jack pair at the pier stud of each old site and carries out synchronization of jacking up, I.e. ensureing the integral jacking state consistency of bridge, jack is located between old site pier stud and bridge, it is preferred that described jack is Ultra-thin hydraulic jack, each described jack is provided with hydraulic lock and waits the most assembling steel cushion block, any to prevent The system of form and pipeline decompression, thus effective support of proof load, meanwhile, jack needs to ensure very heavy during installing The axis on top is vertical, in order to avoid producing horizontal component during jacking, additionally, jack is respectively provided with billet up and down, to ensure There is not local damage in structure.Preferably, the process of jacking uses PLC hydraulic synchronization lifting control system to be controlled, and PLC is controlled Hydraulic synchronization lifting processed is a kind of power and the jacking method of displacement Comprehensive Control, and this method is set up in power and displacement with dual closed loop On the basis of control.
Concrete, stay-supported type displacement sensor is set at the pier stud of old site, by ultrathin hydraulic jack during jacking Top is accurately according to the bridge actual weight of relevant position, and smoothly beam body is lifted on top, and make that beam body during jacking is subject to is additional Stress decrease is to minimum, and ultra-thin hydraulic jack is divided into group according to distributing position simultaneously, with corresponding stay-supported displacement sensing Device composition position closed loop, in order to control displacement and the state of bridge jacking, in order to ensure the synchronicity of jacking process well, really The safety of bridge when protecting jacking.In order to accurately control synchronization of jacking up process, the jack of each old site pier stud is divided into one group, often The corresponding stay-supported type displacement sensor of group, wherein, stay-supported type displacement sensor is located at the pier stud of old site, in order to preferably monitor The state of jacking.
Preferably, this step is additionally included at the bridge pier of old site and arranges Displacement monitor system, is used for detecting beam body jacking vertical Displacement;Stress monitoring system is set in the middle part of bridge, is used for detecting whether beam body the tension that exceeds standard occurs during jacking;With And in bridge surface configuration plan-position monitoring system, for monitoring bridge skew in machine and transverse direction, by monitoring be System monitors each details in real time, in order to pinpoints the problems in time and solves within the shortest time, to guarantee that jacking process is normally entered OK.
It should be noted that whole jacking process is divided into some strokes, the top lifting height of each stroke is as the case may be Set, after each stage jacking terminates, by jack machinery nut-locking, then pad or bracing members are installed, under carrying out The jacking of one stroke, to putting in place to jacking.
S4: release old support restraint, jacking postpones to specific bit, takes out old bearing, releases its constraint to bridge.
S5: install translation driving mechanism, installs shoes below bridge, removes jack, and installs at the bridge pier of old site Counter force system;Preferably, described shoes is hydraulic suspension floating shoes, is provided with double-acting self locking hydraulic oil in hydraulic suspension floating shoes Cylinder, in bridge moving process, between shoes with new old site, ramp surface contacts, and between shoes and new old site, the contact surface of slideway is provided with Polyethylene tetrafluoro plate and corrosion resistant plate, to reduce frictional force between the two, reduce thrust required during the translation of bridge, reduce The difficulty of operation.Preferably, the installation process of counter force system is: arrange steel corbel on the pier stud of old site, and described steel corbel passes through Rear screw rod is fixing with old site pier stud to be connected, and old site pier stud provides opposition by counter force system to bridge, is also bridge Translation provides thrust.
S6: bridge Integral synchronous translates, and described translation driving mechanism is applied thrust and makes bridge pass through slideway between new old site Moving integrally to new address pier stud correspondence position, for the sake of security, the speed of translation is less than 30mm/min, it is preferred that bridge is whole Body synchronous translational process is controlled in real time by pushing tow control system, and described pushing tow control system uses variable-frequency governor, with Hydraulic jack in hydraulic suspension floating shoes connects so that it is the flow of middle oil pump output reaches continuously adjustable purpose.Control former Manage as follows: the operation that the PLC of the electric control system in variable-frequency governor control is sent according to bench board refers to Order, drives frequency control hydraulic-driven unit, drives hydraulic pump pressure oil output to make corresponding cylinder movement, meanwhile, each oil cylinder Load and the displacement signal of the oil cylinder collected are sent to PLC, PLC by pressure transducer and displacement transducer Pressure that Programmable Logic Controller root Ju detects and displacement signal, constitute multichannel position closed loop loop, and continuous correction motion is by mistake Difference, it is ensured that the synchronous control accuracy of the oil cylinder pushing tow of each hydraulic suspension floating shoes, trueness error scope is ± 0.5mm.
In bridge translation motion, due to equipment installation, construction level, control accuracy and the difference of control device, bridge Often there is certain deviation with theory locus line in the track of actual movement, if not being any limitation as this deviation or correcting, past Toward influencing whether being smoothed out of displacement.Therefore longitudinal limiting device is set at the expansion joint that two ends pier stud is corresponding, to guarantee Bridge plan-position meets design requirement in real time.Additionally, during bridge translates, need the real-time status to bridge to carry out Monitoring, mainly includes the monitoring of horizontal displacement synchronicity, the plan-position monitoring of bridge, the stress monitoring of beam body, truss slipway beam Displacement and strain monitoring, such as amount of deflection, torsional deformation degree etc., in order to find that in time bridge translation motion CTC (Centell Technology Corporation) is in problem and Solve in short time, to guarantee that synchronous translational process is normally carried out.
S7: bridge Integral synchronous lands, and removes described translation driving mechanism, installs new bearing, carries out bridge overall same Step landing, completes the integral shift work of bridge.Preferably, this synchronization descent uses PLC hydraulic synchronization lifting to control system System is controlled.
S8: remove slideway and job platform between new old site.
The construction method of the bridge translation that the present invention provides, by setting up slideway between the new old site of Steel Space Truss structure, And translation driving mechanism is installed below bridge, the flatness of slideway end face between new old site and the rigidity of slideway can not only be ensured, Realize overall steadily the moving of bridge, and to synchronization of jacking up and synchronize to land by PLC hydraulic synchronization lifting control system Process accurately controls, synchronicity error can be controlled in ± 2mm within, and parameter control method is unique, effect is notable.This Bright operation is simple, time consumption is few, conscientiously meets practical application request.
Although in description being illustrated embodiments of the present invention, but these embodiments are intended only as prompting, Should not limit protection scope of the present invention.Carry out various omission without departing from the spirit and scope of the present invention, replace and change all Should comprise within the scope of the present invention.

Claims (8)

1. the construction method of a bridge translation, it is characterised in that comprise the following steps:
S1: arrange new address pier stud and set up job platform, the old site pier stud surrounding at bridge sets up steel pipe and full hall scaffold, institute Stating steel pipe top and lay plywood, its surrounding hangs safety net;
S2: set up slideway between new old site, sets up between the new old site of Steel Space Truss structure between new address pier stud and old site pier stud Slideway;
S3: bridge Integral synchronous jacking, installs the whole bridge of jack pair at the pier stud of each old site and carries out synchronization of jacking up, also wrap Include and Displacement monitor system is set at the bridge pier of old site, stress monitoring system is set in the middle part of bridge, and in bridge surface configuration Plan-position monitoring system;
S4: release old support restraint, bridge jacking postpones to specific bit, takes out old bearing, releases its constraint to bridge;
S5: install translation driving mechanism, installs shoes below bridge, removes jack, and installs counter-force at the bridge pier of old site System;
S6: bridge Integral synchronous translates, and described translation driving mechanism applying thrust makes bridge pass through between new old site whole on slideway Body moves to new address pier stud correspondence position;
S7: bridge Integral synchronous lands, and removes described translation driving mechanism, installs new bearing, carries out bridge Integral synchronous landing, To complete the integral shift work of bridge.
The construction method of bridge the most according to claim 1 translation, it is characterised in that in described step S2, described space Steel truss is connected with old site pier stud by post-anchoring technology.
The construction method of bridge the most according to claim 1 translation, it is characterised in that in described step S3, described very heavy Top is hydraulic jack, and each described jack is provided with hydraulic lock and waits the most assembling steel cushion block.
The construction method of bridge the most according to claim 1 translation, it is characterised in that in described step S5, described shoes For hydraulic suspension floating shoes, between described shoes and new old site, the contact surface of slideway is provided with polyethylene tetrafluoro plate and corrosion resistant plate.
The construction method of bridge the most according to claim 1 translation, it is characterised in that in described step S5, counter force system Installation process be: arranging steel corbel on the pier stud of old site, described steel corbel is fixed by rear screw rod and old site pier stud and is connected.
The construction method of bridge the most according to claim 1 translation, it is characterised in that in described step S6, bridge is overall Synchronous translational process is controlled in real time by pushing tow control system, and described pushing tow control system uses variable-frequency governor.
The construction method of bridge the most according to claim 1 translation, it is characterised in that in described step S3 or S7, described Jacking or descent use PLC hydraulic synchronization lifting control system to be controlled.
The construction method of bridge the most according to claim 1 translation, it is characterised in that also include step S8: remove new and old Slideway and job platform between location.
CN201510501403.9A 2015-08-16 2015-08-16 A kind of construction method of bridge translation Active CN105155418B (en)

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CN105672143B (en) * 2016-01-22 2017-03-08 广东辰誉电力设计咨询有限公司 A kind of construction method updating pipeline portal structure
CN107651590B (en) * 2017-11-15 2019-06-21 天津开发区桑博技术服务有限公司 A kind of ocean platform replacing torch heads construction method of installation
CN111676815A (en) * 2020-05-28 2020-09-18 中铁十局集团青岛工程有限公司 Positioning method and positioning system for steel truss girder in-place construction

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DE4306040C2 (en) * 1993-02-26 1995-03-30 Walter Dipl Ing Komm Method and device for the transverse displacement of bridge components manufactured at heights
CN101429820B (en) * 2007-11-07 2011-11-02 上海天演建筑物移位工程有限公司 Integral shift method for buildings
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
CN202492807U (en) * 2012-03-27 2012-10-17 中交四航局第一工程有限公司 Steel box girder walking-type multi-point incremental launching construction system
CN203593976U (en) * 2013-12-10 2014-05-14 中铁二十局集团第一工程有限公司 Sliding system for setting up steel truss girder by dragging method

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