CN208501505U - Kiloton bridge superstructure fast replacement system - Google Patents

Abstract

The utility model discloses kiloton bridge superstructure fast replacement systems, including old beam to carry beam support system on the back, fall beam support system, SPMT vehicle group and mobile controller；Old beam is carried on the back in beam support system and connects to form entirety with diagonal brace using horizontal-associate between each first steel column；SPMT vehicle group is formed by the standard weight SPMT vehicle spelling with ground convex-concave adaptability, the wheel shaft grouping for surpassing the double suspensions of 100 axis bands can be realized by wireless mobile controller and vehicle uses, each group SPMT vehicle group is reconfigured axis and is divided into 4 SMPT support groups, each SMPT support group is reached within 15mm by independent PPU power drive, multiple groups and vehicle precision.The utility model bridge other for kiloton can complete the dismounting of beam body in 2 hours, the quick-replaceable for completing beam body for 12 hours, realize bridging toughening and replacement process safety, low traffic impact, quickly, energy conservation and environmental protection, structure be lossless, beneficial effect of upgrading synergy.

Description

Kiloton bridge superstructure fast replacement system

Technical field

The utility model relates to field of bridge construction.More specifically, the utility model relates on a kind of kiloton bridge Portion's structure fast replacement system.

Background technique

As China's socio-economic development and urbanization process promote, a part of city and Existing Highway Bridges, especially main line There is planning and are unsatisfactory for demand, lead in bridge, viaduct, ramp bridge (mostly freely-supported or continuous beam type structure, single hole across footpath≤50m) Row scarce capacity, the problems such as bearing capacity is inadequate are badly in need of replacement or are removed, and engineering characteristic is as follows:

Old bridge quantity is more: as: more than 230 if the list overpass of Beijing, whole nation seats up to ten thousand；

Old bridge weight is larger: Partial Bridges single span is more than 1000t, and simply connected is more than 3000t；

Beam body stress is complicated: most bridges are the serious concrete structure of disease, concrete flexural slope skew bridge；

Traffic environment is complicated: on most bridge bridges, under bridge and bridge side traffic network and vehicle condition it is complicated, it is even three-dimensional to hand over It is logical；

Construction environment is complicated: for most bridge under-clearances within 10m, construction space is narrow, and ambient enviroment is complicated；

Social environment is complicated: Partial Bridges are in throat thoroughfare, and interruption can be to bands such as social production, life, economy, politics To influence；

Safety protects smooth first: the key problem of bridging toughening is safety, it should be ensured that traffic cannot influence society and economic hair Exhibition；

The environmentally friendly duration second: most bridging toughenings are key project, and crucial bridge need to be rapidly and efficiently removed under environmental protection condition Section；

How the difficulty of construction of this intermediate item and very risky ensures that complex condition old bridge removal reaches safety, low friendship Logical influence, energy conservation and environmental protection, quick, upgrading synergy target, are the significant technology issues of science of bridge building.

The quick-replaceable of China's large-tonnage (as more than 1000 tons) bridge or dismounting mostly use traditional approach at present, it is difficult to suitable Answer complex environment, it is difficult to synthesis solve the problems, such as, it is difficult to while guarantee construction safety, it is convenient, efficient, environmentally friendly, green, intelligent, Low traffic impact.Technology is quickly removed or replaced to domestic and international existing highway bridge, and there are limitations, equip in modularization, generalization, intelligence Shortcomings in terms of energyization, are less able to achieve more large-tonnage (3000t), the bridge of shorter time (36h) close traffic is quickly torn open Construction is removed or replaces, not yet system realizes the modularization of equipment, generalization, intelligence.Therefore, it is highly desirable at home and abroad both On the basis of having technology and equipment, invention kiloton bridge superstructure quickly removed, installation method and its replaces system, with reality Existing urban bridge is quickly removed or is replaced under existing low traffic impact, guarantees bridge structure, traffic, construction, Environmental security and work Cheng Zhiliang dissolves bridging toughening or replacement construction and whole traffic operation target (safety, green, quick, comfortable, hommization, warp Ji) between contradiction, realize that China's technological innovation and industrial transformation upgrade.

Utility model content

The purpose of the utility model is to provide bridge superstructure fast replacement systems, for kiloton (more than 3000t) Bridge the dismounting of beam body can be completed in 2 hours, complete within 12 hours the quick-replaceable of beam body, realize bridging toughening and replacement Process safety, low traffic impact, quickly, energy conservation and environmental protection, structure be lossless, beneficial effect of upgrading synergy.

In order to realize these purposes and other advantages according to the present utility model, bridge superstructure quick-replaceable is provided System, including more replacing equipment, the replacement equipment include that old beam carries beam support system on the back, falls beam support system, SPMT vehicle group and shifting Movement controller；

The old beam carries beam support system on the back

It in the first steel column that matrix is distributed, connects to form entirety with diagonal brace using horizontal-associate between each first steel column, and each the Highness change between one steel column makes first 2 or more the steel column safety coefficient in outside in beam body decentralization in 2mm, and described the One steel column welds integrally connected by bolt or welding or bolt by steel pipe and forms；

First path changing head is set to the top of the first steel column；And

First compression shear transition piece uses the small material of compressional stiffness to be made, and the first compression shear transition piece is arranged first The top of path changing head or the first thick support plate；When the first compression shear transition piece is set to the top of the first thick support plate, institute State the top that the first thick support plate is set to the first path changing head.

Preferably, the beam support system that falls includes:

It in the second steel column that matrix is distributed, connects to form entirety with diagonal brace using horizontal-associate between each second steel column, and each the For highness change between two steel columns in 2mm, second steel column welds integrally connected by bolt or welding or bolt by steel pipe At；

Second path changing head is set to the top of the second steel column；And

Second compression shear transition piece uses the small material of compressional stiffness to be made, and the second compression shear transition piece is arranged second The top of path changing head or the second thick support plate；When the second compression shear transition piece is set to the top of the second thick support plate, institute State the top that the second thick support plate is set to the second path changing head.

Preferably, SPMT vehicle group is formed by the standard weight SPMT basic unit spelling with ground convex-concave adaptability, Wherein, each SPMT basic unit is supported by the wheel shaft of the double suspensions of 4~8 bands.

Preferably, the more replacing equipment further include: new beam carries beam support system on the back and deposits beam support system.

The utility model is include at least the following beneficial effects: bridge superstructure fast replacement system has the advantage that

1) structure safety, traffic safety, equipment safety, the safety of construction safety and environment safety: are realized；

2) quickly: the dismounting of beam body can be completed in 2 hours, complete within 12 hours the quick-replaceable of beam body；

3) traffic impact in bridge week is no more than 2 hours when low influence: removing and replacement, traffic and social influence are low；

4) environmentally friendly: there is energy-efficient effect using the present processes, construct free from environmental pollution, without lifting, filling repeatedly The energy consumption that self weight potential energy need to be overcome such as unload and transport, without large-scale electricity consumption facility, no waste water is generated, asked without blocking up and detouring Energy consumption caused by inscribing removes object reproducible utilization.For 3000 tons of beam section, it is only necessary to the connecting pin at both ends is cut, And existing method needs the beam section by 3000 tons to be cut into multiple segments to remove, and the later period remove need it is repeatedly past Multiple movement, noise is big, oil consumption is high；

5) lossless: so that movement beam body is not generated uncontrollable damage by monitoring system and more replacing equipment；

6) efficiently: mechanization degree is high, is based primarily upon the displacement that SPMT vehicle group completes bridge；The degree of modularity is high, can Partly or wholly synchronization of jacking up, decentralization and very fast mobile, the translation of the whole rotation any direction for realizing 360 ° of level angles, mould Block vehicle on-site assembly is simple and fast, and SPMT modular cart can be used for the movement of other large scale structures and Transportation Engineering after construction； Standardization level is high, standardized support system, monitoring system, movement movement etc., can be used for quick-assembling and completes complicated move Movement；Intelligence degree is high, and the real-time monitoring system of wireless transmission can intelligent early-warning, intelligent storage, intelligent display in time；

7) applicability is wide: bearing capacity to foundation and ground flat degree require it is low, can any group be combined into more than 3000t The point-supported modular cart group in the 4 of load-bearing capacity is adapted to any bridge structure (steel bridge, concrete bridge, the freely-supported of kiloton or more Beam, continuous beam, curved bridge, Zhi Qiao, skew bridge and polymorphic structure bridge etc.) quick dismounting installation and replacement (while containing remove and peace Dress).It may be implemented to surpass 100 axis SPMT lateral, longitudinal or angled spelling and vehicle, the different sizes of composition, difference can be facilitated The movement of loading capacity is equipped, be common to a variety of Over-size transports, especially beam weight >=3000 ton, headroom≤10m, single hole across footpath≤ 50m, the freely-supported of longitudinal slope≤6% or continuous viaduct, overpass, overbridge it is whole across or integrin is removed and installation, and garage is walked Synchronism≤15mm, three-dimensional alignment error≤3mm, aligning accuracy≤10mm, construction time≤36 hour, traffic and social influence Small, have and very answer wide prospect, can be applied to field: (1) hundreds of thousands of highway dilapidated bridges are removed and are replaced； (2) thousands of potential urban road crossing spannings are removed and are replaced；(3) hundreds of potential tracks and the overhead beam bridge that conflicts remove with more It changes；(4) a large amount of new bridge may be used across installation (being used in particular for bridge ABC method to build)；(5) other structures object or especially big piece Movement engineering.

The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through Research and practice to the utility model and be understood by the person skilled in the art.

Detailed description of the invention

Fig. 1 is that SPMT basic unit is bolted as the structural schematic diagram of SPMT vehicle group；

Fig. 2 is that 4 SPMT support groups integrally adjust the structural schematic diagram for pushing up bridge to be torn open；

Fig. 3 is that 4 SPMT support groups integrally adjust the top view pushed up when tearing bridge open；

Fig. 4 is the structural schematic diagram that old beam carries beam support system on the back；

Fig. 5 is the cross-section diagram that old beam carries A-A in beam support system on the back；

Fig. 6 is the setting schematic diagram of the first compression shear transition piece, the first thick support plate and the first path changing head.

Appended drawing reference

1-SPMT vehicle group, 2- bridge to be torn open, 3- bridge pier, the old beam of 4- carry beam support system, 5- leveling mechanism, the first variable diameter of 6- on the back Head, 7- the first compression shear transition piece, the first steel column of 8-, 9- horizontal-associate, 10- diagonal brace, the thick support plate of 11- first.

Specific embodiment

The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation Book text can be implemented accordingly.

In the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or Positional relationship is merely for convenience of describing the present invention and simplifying the description, and is not the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

As shown in figs. 1 to 6, the quick method for dismounting of bridge superstructure, comprising the following steps:

1) preparation

1a, setting movement path, make the foundation bearing capacity of movement path domain reach 100kPa or more, tire and ground Specific contact pressure reaches 0.85MPa or more.

2a, the assembled old beam of bolt weldering carry beam support system on the back.

2) system transform

1b, by after the accurate setting-out in both ends wait tear bridge 2 open, cut setting-out in the form of convenient for jacking, translation.

3) superstructure is removed

1c, debugging assembly SPMT vehicle group 1, the SPMT vehicle group 1 is by the standard weight SPMT with ground convex-concave adaptability Basic unit spelling forms, wherein each SPMT basic unit is supported by the wheel shaft of the double suspensions of 4~8 bands；SPMT vehicle group 1 Quantity determines that SPMT vehicle group 1 can be by double outstanding more than bands more than 100 axis according to beam body weight, center of gravity and geometry are comprehensive The wheel shaft grouping of extension is assembled.

After 2c, each group SPMT vehicle group 1 position, individually jacks old beam and carry beam support system on the back to contacting with 2 bottom of bridge to be torn open.

3c, each group SPMT vehicle group 1 is reconfigured it is divided into 4 SPMT support groups, each SPMT support group is by independent PPU Power drive, double suspensions of each wheel shaft by oil pipe gang up into oil pressure, and essentially identical (4 SPMT support groups are respectively different oil Pressure) so that the center of gravity projection of beam body falls within the Resultant force by each SPMT support group successively in the square range of line, and have There is the mobile angle of stability not less than 7 °, the four-point supporting recombination and oil circuit for completing multiple groups SPMT vehicle group 1 are disposed with control system.

4c, it is integrally adjusted by 4 SPMT support groups and pushes up bridge 2 to be torn open to designed elevation, and moved to and set according to movement path Position is counted to be accurately positioned；Wherein, monitor the vertical displacement of beam body in real time during movement, Jiu Liang carry on the back the stress of beam support system with And the oil pressure of SPMT vehicle group 1.

In the above-mentioned technical solutions, the quick method for dismounting of bridge superstructure is suitable for simply supported beam and continuous beam, especially right In continuous beam, counter-force difference difference in difference is larger, therefore to realize when packing removal, and the counter-force difference of each supporting point being capable of base This is equal, can remove simultaneously with multiple using 4 points of recombinations of 1 oil pressure of bearing capacity reparation and SPMT vehicle group of ground The kiloton beam body of bridge pier 3, and can adapt to environment of the ground irregularity degree within the scope of 10cm.When pavement roughness not When greater than 10cm, in the prior art, there will be two kinds of situations for vehicle, and one is a part of wheels to come to nothing down, the beam of the point can under The case where next, power can be transmitted to two sides, this beam bottom portion is caused to be drawn by contracting, and beam body cracks；Another situation is that part Wheel is opened, and the beam is caused to be withstood, and counter-force is big, unfavorable to vehicle and support system, and the beam of the point can also be damaged.At this In technical solution, since the front-end and back-end hydraulic system of two groups of SPMT vehicle groups 1 is respectively communicated with, four point attachment, each point meeting are formed Adjusting oil pressure according to surface conditions ensure that the center of gravity of support section beam body and the weight of four point attachment to adapt to the different gradients The problem of essentially coinciding, prevent beam body from cracking of the heart when especially needing to install new beam, needs to guarantee beam body free from flaw.

In another technical solution, 3) in the continuous beam removal further include:

The synchronous decentralization continuous beam of 5c, each group SPMT vehicle group 1 is to the contact of beam support system top section is fallen, using wedge structure The part that wedging does not contact makes continuous beam gapless fall on beam support system, and SPMT vehicle group 1 carries old beam and carries beam branch on the back later Support system, which leaves, falls beam support system.The wedge structure can be steel plate, hardwood a tree, used in making timber for boats etc..Wherein, for curved bridge or beam bottom Beam body when with horizontal slope, longitudinal slope or its combination, falls and is provided with leveling mechanism 5 in beam support system in advance, make itself and beam body Bottom surface is agreed with, and in the place there are gap again by squeezing into wedge structure, ensure that the stabilization of continuous beam falls frame.

In the above-mentioned technical solutions, falling boom support is to meet static stability, the hardwood a tree, used in making timber for boats put of top, beam and is fallen when falling It is worked as a buffer between beam support system.

In another technical solution, when 2 beam bottom of continuous beam to be removed has horizontal slope, longitudinal slope or its combination, setting is looked for Flattening mechanism 5, the upper surface of the leveling mechanism 5 are agreed with corresponding continuous beam soffit, and the lower surface of the leveling mechanism 5 is water Plane；The leveling mechanism 5 is directly poured into beam bottom or is fixed on the top that Jiu Liang carries beam support system 4 on the back in advance.Work as levelling machine When structure 5 is directly poured into beam bottom, to setting supporting point beam bottom carry out dabbing, bar planting, arrangement of reinforcement, with thick steel plate, envelope template after adopt Poured with perfusion it is closely knit, guarantee bottom plate flatness 2mm within, 3 or more partial pressing's safety coefficient.

In another technical solution, it includes the first small pressure of compressional stiffness at the top of beam support system that the old beam, which is carried on the back, Transition piece 7 is cut, the first compression shear transition piece 7 can be rubber support, hardwood block, spring structure etc.；Beam column limiting device can be Steel ability structure or spring structure.

In the above-mentioned technical solutions, old beam, which is carried on the back, is arranged the first compression shear transition piece compared to the first path changing head in beam support system 6 size wants smaller, guarantees support section each point uniform stressed, while preventing steel to concrete part transition buffer stress, by Big in the rigidity of steel, slightly uneven integral point can all cause pressure in local increase, cause leveling mechanism 5 and steel pipe that can all damage It is bad.

And the first compression shear transition piece wants smaller compared to the size of the first path changing head 6, has so that object falls in the first pressure It cuts on transition piece, to reduce the eccentric force of steel pipe, guarantees contact of the steel pipe with beam bottom, the advantages of uniform force.

In another technical solution, setting-out the 1b, is cut at the both ends of continuous beam 2 to be removed specifically:

The both ends of continuous beam 2 to be removed are subjected to setting-out, 2 plane projection of continuous beam to be removed is made to be positive splayed (opening Towards translation direction), facade projection is herringbone (being open towards jacking direction)；When cutting, symmetrical equilibrium cuts flange area, side abdomen Plate area, median ventral plate area complete system transform.

It in the above-mentioned technical solutions, is that first jacking is extremely higher than other beam sections, then leads in movement due to beam body to be removed It crosses vehicle group to transfer out, therefore splay cutting mode can guarantee being smoothly moved out for beam body, avoid rubbing or collides.

Bridge superstructure fast replacement system, including more replacing equipment and monitoring system；

The replacement equipment includes that old beam carries beam support system on the back, falls beam support system, SPMT vehicle group and mobile controller, is new Beam carries beam support system on the back, deposits beam support system；

The monitoring system include vehicle oil pressure sensor, vehicle synchronous control sensor (such as displacement sensor for pull rope, GPS navigator fix carries out data comparison, laser sensor and is ok, but is not limited to these components), the displacement monitoring list of beam body Member and the stress monitoring unit for carrying beam support system on the back etc.；The displacement monitoring unit of the vehicle synchronous control sensor, beam body And carry the stress monitoring unit of beam support system on the back and connected by wireless telecommunications and controlled, monitoring system realizes safe and lossless Demand, can be with the synchronism of monitoring car group.It is just no longer superfluous herein that monitoring system partly belongs to the prior art in bridge construction It states.

In another technical solution, old bridge (or new bridge) carries beam support system on the back and includes:

In the first steel column 8 that matrix is distributed, entirety is formed using horizontal-associate 9 and the connection of diagonal brace 10 between each first steel column 8, and Highness change between each first steel column 8 makes 82 or more the safety coefficient of the first steel column in outside in beam body decentralization in 2mm, First steel column 8 welds integrally connected by bolt or welding or bolt by steel pipe and forms.

First path changing head 6 is set to the top of the first steel column 8；And

First compression shear transition piece uses the small material of compressional stiffness to be made, and the first compression shear transition piece is arranged first The top of path changing head or the first thick support plate；When the first compression shear transition piece is set to the top of the first thick support plate 11, Described first thick support plate is set to the top of the first path changing head 6.

In the above-mentioned technical solutions, the material of the first compression shear transition piece structure small using compressional stiffness, guarantees steel pipe Uniaxial force makes its not eccentric force, has ensured steel pipe and the relatively uniform stress of leveling mechanism 5, also ensure more steel pipes it Between uniform force, allow steel pipe between 1mm compression (such as rubber support, hardwood block, spring structure etc.).

Carry beam support system feature, the first standardization connection on the back；The support small with compressional stiffness on second top；Third is whole Meet dynamic stability requirement, anti-horizontal capability is greater than the 6% of self weight.

In another technical solution, the beam support system that falls includes:

In the second steel column that matrix is distributed, entirety is formed using horizontal-associate 9 and the connection of diagonal brace 10 between each second steel column, and each For highness change between second steel column in 2mm, second steel column welds integrally connected by bolt or welding or bolt by steel pipe It forms.

Second path changing head is set to the top of the second steel column；And

Second compression shear transition piece uses the small material of compressional stiffness to be made, and the second compression shear transition piece is arranged second The top of path changing head or the second thick support plate；When the second compression shear transition piece is set to the top of the second thick support plate, institute State the top that the second thick support plate is set to the second path changing head.

In the above-mentioned technical solutions, falling beam support system and Jiu Liang, to carry 4 structure of beam support system on the back similar, repeats no more.

In another technical solution, two groups of SPMT vehicle groups 1 are set as one big group, SPMT vehicle group 1 is by with ground convex-concave The standard weight SPMT vehicle group 1 of adaptability is spelled, wherein each SPMT basic unit is by the double wheel shaft branch hung of 4~8 bands Support.

Bridge superstructure method for rapidly mounting, which comprises the following steps:

Step 1

1.1 setting movement paths, make the foundation bearing capacity of movement path domain reach 100kPa or more, tire and ground Specific contact pressure reaches 0.85MPa or more；

1.2 bolts weld assembled new bridge and carry beam support system on the back；

New beam and bridge floor affiliated facility to be installed are held on and deposit in beam support system by 1.3；

Step 2

2.1 debugging assembly SPMT vehicle groups 1, the SPMT vehicle group 1 is by the standard weight SPMT with ground convex-concave adaptability Vehicle group 1 is spelled, wherein each SPMT basic unit is supported by the wheel shaft of the double suspensions of 4~8 bands；

After the positioning of 2.2 each group SPMT vehicle groups 1, individually jacks new beam and carry beam support system on the back to contacting with new beam beam bottom；

Each group SPMT vehicle group 1 is reconfigured and is divided into 4 SPMT support groups by 2.3, and each SPMT support group is by independent PPU Power drive, double suspensions of each wheel shaft by oil pipe gang up into oil pressure, and essentially identical (4 SPMT support groups are respectively different oil Pressure) so that the center of gravity projection of new beam falls within the Resultant force by each SPMT support group successively in the square range of line, and have There is the mobile angle of stability not less than 7 °, the four-point supporting recombination and oil circuit for completing multiple groups SPMT vehicle group 1 are disposed with control system.

2.4 are integrally adjusted by 4 SPMT support groups and push up beam body to be installed to designed elevation, and are moved to and set according to movement path It counts position to be accurately positioned, aligning accuracy error is no more than 10mm；Wherein, monitor in real time during movement beam body vertical displacement, Carry the stress of beam support system and the oil pressure of SPMT vehicle group 1 on the back.

Step 3

3.1 are integrally transferred in beam body to be installed to the support of preset in advance by 4 SPMT support groups, complete beam to be installed Stress conversion of the body from SPMT toward support.

3.2 installation expansion joints and other bridge floor affiliated facilities.

Embodiment

It is both state key research and development that Shanghai S26 highway, which enters the city road Duan Beizhai overpass BDLK1-3 bridging toughening to rebuild project, Plan the science and technology demonstration project of project " existing urban bridge superstructure quick-replaceable complete set technology and equipment ", and is world's list The bridge of body maximum weight quickly removes engineering.

The bridge section be overweight (4400t) super oblique (5%) 3 across (3x33m) Concrete Curved (r=450m) continuously width (18m) box beam.Site traffic and environment are complicated, narrow space, to save the duration, reduce traffic impact, creatively develop Overweight super oblique Concrete Curved Continuous Beams SPMT quickly removes engineering method, to wherein one section of continuous beam (long 67.5m, weight 3050t) into Row removes, and main construction procedure and main points are as follows:

1, preparation of construction

(1) setting of movement path must remove earth's surface barrier and ground weak link, foundation bearing force request reach 100kPa needs integrally more smooth same slope hardening, and part paving thick steel plate, clearly mark is drawn in ground surface.

(2) levelling piece of the beam bottom of each supporting point position construction need to carry out dabbing, bar planting, arrangement of reinforcement, match thick steel plate, using perfusion Method pour it is closely knit, within bottom plate flatness 2mm, 3 or more partial pressing's safety coefficient.

(3) after carrying beam support system on the back by the design of stable space structure, bolt weldering is assembled under bridge or near bridge, with each steel column of group Within highness change 2mm, interior 2 or more outside steel column safety coefficient, branch support set rubber support, on set beam-column limiting device, under If vehicle-column fixer.

(4) after falling beam support system by the design of stable space structure, assembled, each steel column top of each group is welded in the specified area Luo Liang bolt Within highness change 10mm, hardwood wedge block is above set, be reliably connected with strip footing steel built-in fitting down.

(5) it completes SPMT vehicle group 1 comprehensively and car test is tested, debugged, overall structure and movenent performance stabilization, oil pressure speed are controllable It is adjustable, non control system loophole.

(6) for 3 SPMT basic units, simultaneously four SPMT vehicle groups are arranged altogether and move beams, each at 1 SPMT vehicle group for vehicle SPMT vehicle group 1 forms (needing with the Che Zuke of how many axis according to practical beam body weight configuration) by 30 axis connections, sets 4 big groups altogether SPMT vehicle group 1, respectively 3-1,3-2,3-3,3-4 vehicle group, it is desirable that beam bearing stress is carried in accurate real time monitoring beam body vertical displacement on the back And gradient, regulate and control the oil pressure and top beam, Luo Liang, the synchronism for moving beam of each vehicle group in time；

(7) investigation and assessment for completing bridge, ground, environment and traffic impact, carry out targetedly bridge movement technology The design and demonstration of scheme and monitoring scheme；

(8) it completes three-level specific technique and safety is told somebody what one's real intentions are, establish sound beam body movement command system and Emergency System.

2, system transform

(1) after bridge deck traffic closing, the laying of full-bridge intelligent monitor system, debugging and support, expansion joint and sluicing are completed Pipe etc. influences constraint release；

(2) this section of Liangping facade projection is completed into the accurate cutting setting-out of " positive eight word " and " eight word "；

(3) perpendicular compact form diamond chain cutter is selected, first balanced cutting concrete flange plate and side web case area, right again Claim cutting median ventral plate case area, slowly complete this section of continuous beam system transform to multi-point support complex beam system.

3, the continuous support of continuous beam body (long 67.5m, weight 3050t) removes

(1) using jack respectively synchronization of jacking up 3-1,3-2,3-3,3-4 carry on the back beam support system be self-possessed to levelling piece Contact；

(2) 3-1,3-2,3-3,3-4 vehicle groups are driven under respective support system, and high fine positioning, single group debugging, support are completed Test, 4 points of recombinations and oil circuit deployment；

(3) 3-1,3-2,3-3,3-4 vehicle group vehicle frame highest top under the 3rd section of beam are adjusted to 160cm；

(4) traffic of bridge south is closed, it is slowly synchronous that 3rd section of beam is accurately moved into Luo Liang by diagonal, the alternate mode of straight trip Position monitors vertical displacement, stress, cracking and the motion track of beam body in real time in the process, carries beam bearing stress and gradient on the back, with And the oil pressure of each vehicle group of regulation, top beam, Luo Liang, the synchronism for moving beam process, opening bridge south traffic after about 2 hours；

The synchronous decentralization beam body of (5) 3-1,3-2,3-3,3-4 vehicle groups is contacted to beam support top part is fallen, using wedge-shaped steel plate After wedging, beam body integral gapless falls frame；

(6) first with the excision of diamond chain cutter behind the edge of a wing on road, then cooperate more spray dust's facilities, it is directly symmetrical Equilibrium cuts box beam, finally carries out resource utilization to concrete waste and reinforcing bar；

The carrying of (7) 3-1,3-2,3-3,3-4 vehicle groups, which is carried beam support system on the back and left, falls beam position.It is required that moving process maximum oil Within pressure 28MPa, the max speed 100m/h, positioning and aligning accuracy 10mm；

6, delivery receiving acceptance

Intelligent monitor system, Xin Liang (or old beam) is completed to carry beam support system on the back, fall beam support system and SPMT vehicle group 1 is torn open Except withdrawing, the scene cleaning of progress is checked and accepted.

The engineering innovation carries out " four change " (standardization, fining, mechanization, intelligence) quick demolition technique of bridge, mentions The overweight oblique wide quick design method of Continuous Box Girder is gone out and has calculated Assessment theory, has initiated based on SPMT module and vehicle 3000 tonnes of bent cant beam bodies quickly remove construction technology, unique construction intelligent monitor system and security control system, have developed 132 axis SPMT modules quickly and vehicle, synchronization of jacking up, synchronizing moving, synchronize and fall beam and placement technology, develop 3000 tonnes Bent cant beam body central supported and freely-supported, which support, quickly removes construction technology and safety control index, ensure that engineering construction is safe, fast Prompt, efficient, environmental protection, green, low traffic impact, improve comprehensive value, promote technological progress, pushed industrial upgrading.To the greatest extent Pipe the embodiments of the present invention have been disclosed as above, and it is not limited to the applications listed in the specification and the embodiments, It can be applied to various fields suitable for the present invention completely, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the utility model is simultaneously It is not limited to specific details and legend shown and described herein.

Claims (4)

1. kiloton bridge superstructure fast replacement system, which is characterized in that including more replacing equipment, the replacement equipment includes Old beam carries beam support system on the back, falls beam support system, SPMT vehicle group and mobile controller；

The old beam carries beam support system on the back

In the first steel column that matrix is distributed, connect to form entirety with diagonal brace using horizontal-associate between each first steel column, and each first steel In 2mm, first steel column welds integrally connected by bolt or welding or bolt by steel pipe and forms highness change between column；

First path changing head is set to the top of the first steel column；And

First compression shear transition piece uses the small material of compressional stiffness to be made, and the first compression shear transition piece is arranged in the first variable diameter The top of head or the first thick support plate；When the first compression shear transition piece is set to the top of the first thick support plate, described the One thick support plate is set to the top of the first path changing head.

2. kiloton bridge superstructure fast replacement system as described in claim 1, which is characterized in that described to fall beam support System includes:

In the second steel column that matrix is distributed, connect to form entirety with diagonal brace using horizontal-associate between each second steel column, and each second steel In 2mm, second steel column welds integrally connected by bolt or welding or bolt by steel pipe and forms highness change between column；

Second path changing head is set to the top of the second steel column；And

Second compression shear transition piece uses the small material of compressional stiffness to be made, and the second compression shear transition piece is arranged in the second variable diameter The top of head or the second thick support plate；When the second compression shear transition piece is set to the top of the second thick support plate, described the Two thick support plates are set to the top of the second path changing head.

3. kiloton bridge superstructure fast replacement system as described in claim 1, which is characterized in that SPMT vehicle group is by having There is the standard weight SPMT basic unit spelling of ground convex-concave adaptability to form, wherein each SPMT basic unit is by 4~8 The wheel shaft support of the double suspensions of band.

4. kiloton bridge superstructure fast replacement system as described in claim 1, which is characterized in that the more replacing equipment Further include: new beam carries beam support system on the back and deposits beam support system.