CN105603881B - A kind of the integral erection system and its construction method of large-scale arch bridge over strait - Google Patents

A kind of the integral erection system and its construction method of large-scale arch bridge over strait Download PDF

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Publication number
CN105603881B
CN105603881B CN201610102485.4A CN201610102485A CN105603881B CN 105603881 B CN105603881 B CN 105603881B CN 201610102485 A CN201610102485 A CN 201610102485A CN 105603881 B CN105603881 B CN 105603881B
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girder
support
arched girder
sections
arch rib
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CN105603881A (en
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梁雄
王诚
刘安兴
孙向东
卢绍鸿
刘桂红
罗致
梁立农
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Guangdong communication Planning and Design Institute Group Co Ltd
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Guangdong Province Communications Planning & Design Institute Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D4/00Arch-type bridges

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a kind of the integral erection system and its construction method of large-scale arch bridge over strait,The integral erection system includes semi-submerged ship,Towboat,Modularization Temporary Piers sections,Modularization falsework sections,Beam bottom temporary support docking bayonet socket,Arched girder is put more energy into support temporarily,Arch rib assembling support,Arc rib alignment adjuster,Girder assembling support and trestle,Girder assembling support and arch rib assembling support are used to realize the integral assembling of overall arched girder on bank,Modularization Temporary Piers sections support is on trestle,Modularization falsework sections support is on the semi-submerged ship,Semi-submerged ship is by pressure water and combines fluctuation tide,Realize the alternating jacking support of modularization Temporary Piers sections and modularization falsework sections,The integral erection system is using semi-submerged ship pressure water and fluctuation tide,After overall arched girder jacking to designed elevation,Transportation by driving directly sets up in place to bridge location.The present invention discloses the integral erection construction method of large-scale arch bridge over strait.

Description

A kind of the integral erection system and its construction method of large-scale arch bridge over strait
Technical field
The present invention relates to the spanning equipment and construction method of arch bridge, specifically a kind of integral erection system of large-scale arch bridge over strait System and its construction method.
Background technology
The arrangement and method for construction of current domestic arch bridge over strait mainly has:Cable hoisting scheme, full framing scheme etc..
Erection with cableway one is the cable machine for needing large-tonnage, and two is to need assembled two pylons higher, and sets knotted rope With dorsal funciculus and earth anchor;Erection with cableway needs the critical process quality such as long-term offshore high-altitude effect, welding to be not easily controlled;Arch rib appearance State adjustment is difficult;Cable buckling and hanging system steel using amount is big, and marine corrosion amount is big, reclaims few, and cost is high;Coastal typhoon region, Need to be very big across the typhoon cycle of 2 years, construction risk.
Raft support method construction one is to need substantial amounts of timbering material and bracket basis, and two is influence navigation;The method needs length Phase offshore high-altitude operation, construction wind-engaging, rain, wave influence are big, long construction period;It is primarily suitable for the shallower depth of water, small across footpath and does not have There is the arch bridge that navigation is required.
Sea navigation safety, offshore construction safety and offshore construction quality etc. have become the large-scale arch bridge development over strait of restriction Key factor.
The content of the invention
An object of the present invention is to provide a kind of integral erection system of large-scale arch bridge over strait, and the integral erection system exists Assembled entirety arched girder, damp using semi-submerged ship pressure water and fluctuation on the bank, after overall arched girder jacking to designed elevation, transportation by driving to bridge Position directly sets up in place, without using traditional super-tonnage synchronization of jacking up equipment and its falsework, farthest reducing Construction interim measure expense, simultaneously because overall arched girder completes assembling construction on the coast, it is to avoid adverse circumstances construction at sea, protects Hinder construction quality, the offshore construction activity duration is short, had little influence on and open the navigation or air flight safe, the construction period for largely shortening, Labour is saved, with good society and economic benefit.
Above-mentioned purpose of the invention is achieved by the following technical solution:A kind of integral erection of large-scale arch bridge over strait System, the arch bridge has overall arched girder, and overall arched girder includes the arch rib and longitudinally disposed girder of arc, and its feature exists In:Described integral erection system includes semi-submerged ship, towboat, modularization Temporary Piers sections, modularization falsework sections, beam bottom Temporary support docking bayonet socket, arched girder are put more energy into support temporarily, arch rib assembling support, arc rib alignment adjuster, girder assembling support with And trestle, described girder assembling support and arch rib assembling support are used to realize the integral assembling of overall arched girder on bank, and incite somebody to action Overall arched girder integral pushing after assembly slides onto the upper ship position of trestle, and described beam bottom temporary support docking bayonet socket is interim Installed in multiple bayonet sockets at girder beam bottom, described modularization Temporary Piers sections support on the trestle, described modularization On the semi-submerged ship, described multiple beam bottoms temporary support docking bayonet socket is integrally pushed up falsework sections support in overall arched girder Rise when setting up for being docked with described modularization Temporary Piers sections and modularization falsework sections, described semi-submerged ship passes through Pressure water and combination fluctuation tide, realize the alternating jacking support of modularization Temporary Piers sections and modularization falsework sections, will Overall arched girder jacking to designed elevation, in alternately support stress, it is ensured that the quick positioning of overall arched girder, described towboat is used for It is connected with semi-submerged ship, the overall arched girder on semi-submerged ship is dragged to by installation bridge location by towboat, partly latent marine railway is being passed through at the incoming tide Water integrally lifts overall arched girder, directly lifts overall arched girder to bridge pier top, and the disposable integral erection of overall arched girder is in place, Described arched girder is put more energy into support and is temporarily disposed in overall arched girder with arc rib alignment adjuster temporarily, and described arched girder adds temporarily The arch rib of overall arched girder is connected and put more energy into by strength support with girder, and arched girder is put more energy into support and faced with the modularization on semi-submerged ship temporarily When bracket subsection be in up and down with respect to shape, arched girder put more energy into temporarily support overall as support arched girder when the power transmission strong point, it is described Arc rib alignment adjuster is used to be temporarily disposed between arch rib assembling support and arch rib, angle and linear tune for realizing arch rib It is whole.
In the present invention, described overall arched girder also includes arch rib wind brace, flexible tie-rod and suspension rod, and described arch rib is steel knot Structure, the depth of section of arch rib sets dividing plate and ribbed stiffener along bridge to change, in arch rib, and described arch rib wind brace is multiple tracks, arch rib wind Support is rigidly connected with arch rib, and described arch rib constitutes the main arch of overall arched girder with arch rib wind brace, and the girder is steel construction, girder As being rigid tie bar, girder is connected to a fixed with arch rib at arch springing, the suspension rod for vertically fall to hang over girder and arch rib it Between plurality of rods, spacing between adjacent suspension rod is 8m~16m, and girder is hung on arch rib by suspension rod;The flexible tie-rod is The multiply in girder is disposed longitudinally on along girder length direction, flexible tie-rod is anchored at the junction of girder and arch rib, there is provided water Horizontal drawing power is resisting the horizontal thrust of arch rib.
In the present invention, described towboat is many, and many towboats constitute towboat groups, for described semi-submerged ship provide power, Positioning and anchoring.
In the present invention, described modularization Temporary Piers sections is identical with modularization falsework bay structural, is by many At least one section box truss system of the steel stull composition of putting more energy into of the vertically arranged steel thin-walled column of root and horizontally set, and in case The bottom of shape girder system is provided with the bowl buckle-like construction bayonet socket that Open Side Down, and the upper end of the steel thin-walled column is provided with and adds Strength rib and billet, while being provided with multigroup High-strength bolt hole in billet, can be aligned using high-strength bolt as needed Each section modularization Temporary Piers sections or modularization falsework sections in upper and lower position carry out the fixed concatenation of multi-segmental.
In the present invention, described beam bottom temporary support docking bayonet socket is in horn-like, in alternately support stress, it is ensured that overall The strong point of arched girder is quick and precisely positioned with described modularization Temporary Piers sections or modularization falsework sections.
In the present invention, the support of putting more energy into temporarily of described arched girder is by many angularly disposed steel thin-walled columns and angularly disposed The overall girder system of variable cross-section that is welded of steel stull of putting more energy into, the arched girder puts more energy into the bottom temporary weld of support temporarily On girder, top is mutually welded temporarily with arch rib, and described arched girder is put more energy into support and connects described overall arched girder temporarily temporarily And put more energy into, the stress and deformation that overall arched girder is ensured during jacking, transportation by driving meet design requirement.
In the present invention, described arch rib assembling support is the multigroup steel truss being welded by steel thin-walled column and steel stull of putting more energy into Frame system, multigroup arch rib assembling support constitutes transverse girder between arch rib system.
In the present invention, described arc rib alignment adjuster is included by jack system and regulation steel plate, described jack System is mounted vertically between described arch rib assembling support and arch rib, described for realizing arch rib angle and LFM signal Regulation steel plate is horizontally installed between described jack system and arch rib assembling support.
In the present invention, described girder assembling support is in arch rib assembling support corresponding position by positioned at the vertically arranged steel in bottom Pipe pile foundation, the reinforced concrete pile cap beam positioned at middle part horizontally set and positioned at the vertically arranged steel pipe support group in top Into in non-arch rib assembling support corresponding position by the concrete cushion of horizontally set and the vertical steel being inserted into concrete cushion Pipe holder is constituted.
In the present invention, the trestle is made up of steel pipe pile foundation and reinforced concrete pile cap beam, pre-buried steel above apron piece Plate simultaneously lays tetrafluoro slide plate, leaves jack pushing tow stress bayonet socket, is overall arched girder from assembled position thrusting slip to trestle Ship position provides slideway, and as the interim pier foundation of modularization.
The second object of the present invention is to provide a kind of integral erection construction method of large-scale arch bridge over strait, and the construction method is Assembled entirety arched girder, using jack by overall arched girder from assembled position thrusting slip to ship position on trestle, utilizes on the coast Semi-submerged ship pressure water and fluctuation tide, by overall arched girder jacking to designed elevation after, transportation by driving to bridge location directly sets up in place.
This purpose of the invention is achieved by the following technical solution:Using the whole of above-mentioned arch bridge large-scale over strait The construction method that body construction system is carried out, it is characterised in that the construction method comprises the following steps:
Step 1:Bank assembly levelling of the land hardening, girder assembling support and arch rib assembling support foundation construction, slide rail Road and Conveyor belt are constructed, the construction of girder assembling support;Symmetrical assembly girder sections, forms entirety on girder assembling support Girder;The arch rib erection assembling support on girder, installs arched girder and puts more energy into temporarily support, symmetrical on arch rib assembling support assembled to encircle , be adjusted to for arch rib by arc rib alignment adjuster design linear, arch rib erection wind brace by rib sections, and assembly forms overall arched girder Main arch;Tensioning part permanent flexible tie-rod, installs suspension rod and tensioning, and construction forms overall arched girder;
Step 2:It is symmetrical to remove arch rib assembling support, only retain arched girder and put more energy into temporarily support, it is symmetrical to remove that girder is assembled to be propped up Frame, arched girder is integral, stress at bearing;Using hydraulic jack by overall arched girder from assembled position thrusting slip to the upper of trestle Ship position;
Step 3:In position, the first segment on trestle by the first segment modularization falsework segment lifting on semi-submerged ship Modularization Temporary Piers sections prepares in place;During low tide, semi-submerged ship pressure is dived under water, is twisted into beam bottom;At the incoming tide, first on semi-submerged ship Overall arched girder is lifted in section modularization falsework sections top insertion beam bottom temporary support docking bayonet socket, semi-submerged ship combination draining Rise, rapidly hang at girder bearing first segment modularization Temporary Piers sections on trestle;During ebb tide, semi-submerged ship pressure water, overall arch Beam falls on first segment modularization Temporary Piers sections, and overall arched girder completes first time integral jacking highly;
Step 4:In position, the second section mould on trestle by the second section modularization falsework segment lifting on semi-submerged ship Block Temporary Piers sections prepares in place;During low tide, semi-submerged ship pressure is dived under water, is twisted into beam bottom;At the incoming tide, second section on semi-submerged ship Overall arched girder is lifted in modularization falsework sections top insertion beam bottom temporary support docking bayonet socket, semi-submerged ship combination draining, Second section modularization Temporary Piers sections on trestle is hung in and tipped upside down on first segment modularization Temporary Piers sections, ebb tide rapidly When, semi-submerged ship pressure water, overall arched girder falls on second section modularization Temporary Piers sections, and overall arched girder completes second integral jacking Highly;
Step 5:Jacking is continued cycling through according to step 4, until bridge floor reaches designed elevation;During low tide, semi-submerged ship pressure water Dive, twists into beam bottom;During high tide level, overall arched girder is lifted in semi-submerged ship draining, and semi-submerged ship twists out temporary trestle bridge position, tenses wind Cable, prepares transportation by driving;
Step 6:In wind, wave smaller period, under many tractions of towboat, semi-submerged ship is attached to bridge location by overall arched girder transportation by driving Closely;
Step 7:At the incoming tide, overall arched girder is lifted in semi-submerged ship draining, is twisted into bridge location, directly lifts overall arched girder to bridge pier Top;During ebb tide, semi-submerged ship pressure water, bridge pad is slowly contacted with bridge pier, the rapid soft or hard connection for releasing overall arched girder and ship, Semi-submerged ship leaves, and completes the erection of overall arched girder;
Step 8:The arched girder for removing overall arched girder is put more energy into the stretching force of support, the flexible tie-rod of adjustment and suspension rod temporarily, is constructed Bridge deck, Cheng Qiao is open to traffic.
Compared with prior art, the present invention has following remarkable result:
1. arch rib of the invention is prefabricated in the factory with girder sections, and bank building-site spelling is integral at bridge location, Avoid wind, the influence of wave, can application property and construction quality be greatly increased.
2. overall arched girder jacking of the invention is floating chase erected, at utmost reducing traditional arch rib and main girder construction method Work high above the ground, improve the security of construction.
3. arched girder of the present invention is assembled integral on the coast, and erection at sea time history is shorter at bridge location, under bridge Navigation is almost without influence.
4. the present invention is creatively using semi-submerged ship pressure water and fluctuation tide, after arched girder jacking to designed elevation, transportation by driving Directly set up in place to bridge location;The present invention uses simplest buoyancy and tide, the jacking of super-tonnage arch bridge is realized, without adopting With traditional super-tonnage synchronization of jacking up equipment and its falsework, construction interim measure expense is maximally reduced, obtain notable Economic benefit;There are more ten thousand tons and tens thousand of tonnes of semi-submerged ships, the integral erection system of large-scale arch bridge over strait of the invention both at home and abroad System and its construction method, jacking and can set up ten thousand tons and tens thousand of tonnes of bridge structure in theory, greatly promote bridge to develop.
6. present invention entirety arched girder jacking, shortens the construction period, and accelerating construction progress saves labour, ensures and is disliking Construction quality under bad environment, with the obvious advantage on severe offshore construction environment and the frequent navigation channel of navigation, reliable, environmental protection, tool There is good society and economic benefit.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is integral erection system of the present invention in bank spelling girder, the construction schematic diagram of arch rib;
Figure 1A is the A of Fig. 1 to zoomed-in view;
Figure 1B is the B of Fig. 1 to zoomed-in view;
Fig. 2 is that integral erection system of the present invention semi-submerged ship pressure in low tide is latent under water twists the construction for preparing jacking into beam bottom Schematic diagram;
Overall arched girder is lifted and hangs in modularization and faced by Fig. 3 for integral erection system of the present invention in semi-submerged ship draining at the incoming tide When pier construction schematic diagram;
Fig. 4 is that integral erection system of the present invention semi-submerged ship pressure water in ebb tide falls on modularization Temporary Piers overall arched girder Construction schematic diagram;
Fig. 5 integral erection systems of the present invention be middle semi-submerged ship by overall arched girder transportation by driving construct schematic diagram;
Fig. 6 is that overall arched girder is lifted applying to above bridge pier by integral erection system of the present invention in semi-submerged ship draining at the incoming tide Work schematic diagram;
Fig. 7 is that the structure of modularization Temporary Piers sections and modularization falsework sections in integral erection system of the present invention is shown It is intended to;
The overall structure diagram of the Cheng Qiao of the arch bridge that Fig. 8 is set up by integral erection system of the present invention.
Description of reference numerals
1st, overall arched girder;11st, arch rib;12nd, arch rib wind brace;13rd, girder;14th, flexible tie-rod;15th, suspension rod;2nd, semi-submerged ship; 3rd, towboat;4th, modularization Temporary Piers sections;41st, steel thin-walled column;42nd, put more energy into steel stull;43rd, bowl buckle-like construction bayonet socket;44th, put more energy into Rib;45th, billet;46th, high-strength bolt;5th, modularization falsework sections;6th, beam bottom temporary support docking bayonet socket;7th, arched girder faces When put more energy into support;71st, steel thin-walled column;72nd, put more energy into steel stull;8th, arch rib assembling support;9th, arc rib alignment adjuster;91st, it is very heavy Top system;92nd, steel plate is adjusted;10th, girder assembling support;10a, steel pipe pile foundation;10b, reinforced concrete pile cap beam;10c, steel Pipe holder;10d, concrete cushion;100th, trestle;100a, Conveyor belt;101st, main pier;102nd, cushion cap;103rd, pile foundation; 104th, wind cable.
Specific embodiment
The integral erection system of a kind of large-scale arch bridge over strait as shown in Figures 1 to 8, wherein, arch bridge has overall arched girder 1, overall arched girder 1 includes arch rib 11, longitudinally disposed girder 13, arch rib wind brace 12, flexible tie-rod 14 and the suspension rod 15 of arc, arch Rib 11 is steel construction, and the depth of section of arch rib 11, to change, dividing plate and ribbed stiffener is set in arch rib 11 along bridge, is overall lifting transportation by driving Enough perpendicular and torsional rigidities in length and breadth are provided, arch rib wind brace 12 is multiple tracks, and arch rib wind brace 12 is rigidly connected with arch rib 11, it is ensured that apply Work process and the stability and wind resistance into bridge construction, arch rib 11 constitute the main arch of overall arched girder 1, girder with arch rib wind brace 12 13 is steel construction, and girder 13 doubles as being rigid tie bar that energy receiving portion divides axial tension and moment of flexure, and girder 13 is with arch rib 11 in arch springing Place is connected to a fixed, and suspension rod 15 is vertically to fall to hang over plurality of rods between girder 13 and arch rib 11, between adjacent suspension rod 15 between Away from being 12m, between 8m~16m, suspension rod 15 has adjusts Suo Genghuan functions to the spacing between adjacent suspension rod 15, it is ensured that each Construction stage adjusts the internal force of main arch and girder 13 by adjusting the internal force of suspension rod 15, and girder 13 is hung in arch rib by suspension rod 15 On 11;Flexible tie-rod 14 is the multiply being disposed longitudinally on along the length direction of girder 13 in girder 13, and flexible tie-rod 14 is anchored at master The junction of beam 13 and arch rib 11, there is provided horizontal pull to resist the horizontal thrust of arch rib 11, according to stress in work progress Can be by stock tensioning adjusting main arch and the internal force of girder 13.
Integral erection system in the present embodiment includes that semi-submerged ship 2, towboat 3, modularization Temporary Piers sections 4, modularization face When bracket subsection 5, beam bottom temporary support docking bayonet socket 6, arched girder put more energy into temporarily support 7, arch rib assembling support 8, arc rib alignment is adjusted Section device 9, girder assembling support 10 and trestle 100.
Longitudinal direction in the present embodiment refers to the length direction of girder 13, namely arch bridge length direction, refer to laterally and master The perpendicular direction of the length direction of beam 13, namely arch bridge width.
Girder assembling support 10 and arch rib assembling support 8 are used to realize the integral assembling of overall arched girder 1 on bank, and will spell The integral pushing of overall arched girder 1 after dress slides onto the upper ship position of trestle 100, and temporary support docking bayonet socket 6 in beam bottom is interim peace Mounted in multiple bayonet sockets at the beam bottom of girder 13, the support of modularization Temporary Piers sections 4 on trestle 100, modularization falsework sections 5 On semi-submerged ship 2, multiple beam bottoms temporary support docks bayonet socket 6 to be used for and module support when the integral jacking of overall arched girder 1 sets up Change Temporary Piers sections 4 and modularization falsework sections 5 is docked, semi-submerged ship 2 is by pressure water and combines fluctuation tide, realizes module Change the alternating jacking support of Temporary Piers sections 4 and modularization falsework sections 5, by the jacking of overall arched girder 1 to designed elevation, Alternately in support stress, it is ensured that the quick positioning of overall arched girder 1, towboat 3 is many, and many towboats constitute towboat group, are partly latent The offer of ship 2 power, positioning and anchoring, towboat 3 are used to be connected with semi-submerged ship 2, are encircleed the entirety on semi-submerged ship 2 by towboat 3 Beam 1 is dragged to installation bridge location, lifts the entirety of overall arched girder 1 the draining of semi-submerged ship 2 is passed through at the incoming tide, directly lifts overall arched girder 1 It is to bridge pier top, the disposable integral erection of overall arched girder 1 is in place, arched girder put more energy into temporarily support 7 and arc rib alignment adjuster 9 it is equal It is temporarily disposed in overall arched girder 1, arched girder is put more energy into and supports 7 the arch rib 11 of overall arched girder 1 is connected and is added with girder 13 temporarily Strength, arched girder support 7 of putting more energy into temporarily is in relative shape up and down with the modularization falsework sections 5 on semi-submerged ship 2, and arched girder is put more energy into temporarily Power transmission strong point when support 7 is as support entirety arched girder 1, arc rib alignment adjuster 9 is used to be temporarily disposed at the assembled branch of arch rib Between frame 8 and arch rib 11, angle and LFM signal for realizing arch rib 11.
Semi-submerged ship 2 in the present embodiment is arched girder jacking, overall transportation by driving, the key of integral jacking, with including automatic ballast water Adjustment function, can dive certain depth load;Semi-submerged ship 2 can set according to the weight of overall arched girder 1, height of C.G., bridge floor Depth of water etc. calculates selected at the size of power, the quantity of falsework and position, trestle at meter absolute altitude, falsework;Semi-submerged ship 2 Deck is per square meter bearing capacity, (traction navigates to load tonnage, captain, the beam, moldeed depth, maximum heavy deep, the towage speed of a ship or plane and designed draft It is OK) etc. main control parameters.
In the present embodiment, modularization Temporary Piers sections 4 is identical with modularization falsework 5 structures of sections, is by many Vertically arranged steel thin-walled column 41 and at least one section box truss system of the composition of steel stull 42 of putting more energy into of horizontally set, and The bottom of box truss system is provided with the bowl buckle-like construction bayonet socket 43 that Open Side Down, to reach rapid alignment, quick-assembling And the quick purpose removed, the upper end of steel thin-walled column 41 is provided with ribbed stiffener 44 and billet 45 and steel thin-walled column end is entered Row is put more energy into, and prevents local pressure flexing, while multigroup High-strength bolt hole is provided with billet 45, can be according to actually used need Each section modularization Temporary Piers sections 4 or modularization falsework sections 5 to be pointed to upper and lower position using high-strength bolt 46 enter The fixed concatenation of row multi-segmental, such as one section, two sections, three sections or more piece.
Beam bottom temporary support docking bayonet socket 6 in the present embodiment is made up of, respectively in horn-like billet and stiffened steel plates Weld under falsework aboard ship and the corresponding beam of trestle Temporary Piers, in alternately support stress, it is ensured that the branch of overall arched girder 1 Support point is quick and precisely positioned with modularization Temporary Piers sections 4 or modularization falsework sections 5.
The support 7 of putting more energy into temporarily of arched girder in the present embodiment is by many angularly disposed steel thin-walled columns 71 and angularly disposed The overall girder system of variable cross-section that is welded of steel stull 72 of putting more energy into, arched girder puts more energy into the bottom temporary weld of support 7 temporarily On girder 13, top is interim with arch rib 11 mutually to be welded, and arched girder is put more energy into and supports 7 overall arched girder 1 is connected and put more energy into temporarily temporarily, The stress and deformation that overall arched girder 1 is ensured during jacking, transportation by driving meet design requirement, are ensured during jacking, transportation by driving Arched girder stress and deformation meet desired key.
Arch rib assembling support 8 in the present embodiment is the multigroup steel truss being welded by steel thin-walled column and steel stull of putting more energy into System, multigroup arch rib assembling support 8 constitutes transverse girder between arch rib system.
Arc rib alignment adjuster 9 in the present embodiment is included by jack system 91 and regulation steel plate 92, jack system 91 are mounted vertically between arch rib assembling support 8 and arch rib 11, and for realizing arch rib angle and LFM signal, regulation steel plate 92 is horizontal To being arranged between jack system 91 and arch rib assembling support 8, the angle of arch rib 11 and LFM signal are capable of achieving.
In the present embodiment, girder assembling support 10 is in the corresponding position of arch rib assembling support 8 by positioned at the vertically arranged steel in bottom Pipe pile foundation 10a, the reinforced concrete pile cap beam 10b positioned at middle part horizontally set and positioned at the vertically arranged steel pipe branch in top Frame 10c is constituted, the non-corresponding position of arch rib assembling support 8 is by the concrete cushion 10d of horizontally set and is vertically inserted into coagulation Steel pipe support 10c compositions in soil padding 10d.
In the present embodiment, trestle 100 is made up of steel pipe pile foundation and reinforced concrete pile cap beam, and steel pipe pile foundation that is to say Conveyor belt 100a, pre-embedded steel slab and tetrafluoro slide plate is laid above apron piece, leaves jack pushing tow stress bayonet socket, is overall arch Beam provides slideway from assembled position thrusting slip to ship position on trestle, and as the interim pier foundation of modularization.
The span of arch bridge is 286m in the present embodiment, it can also be used to which span is the arch bridge large-scale over strait of 100m~500m.
The integral erection construction method of above-mentioned large-scale arch bridge over strait, comprises the following steps:
Step 1:As shown in figure 1, in bank assembly levelling of the land hardening, girder assembling support 10 and arch rib assembling support 8 Foundation construction, sliding rail and Conveyor belt are constructed, and girder assembling support 10 is constructed;It is symmetrical assembled on girder assembling support 10 Girder sections, forms overall girder 13;The arch rib erection assembling support 8 on girder 13, installs arched girder and puts more energy into temporarily support 7, , be adjusted to for arch rib 11 by arc rib alignment adjuster 9 design linear by the symmetrical assembly rib-lifting section on arch rib assembling support 8, Arch rib erection wind brace 12, assembly forms the main arch of overall arched girder 1;Tensioning part permanent flexible tie-rod 14, installs suspension rod 15 and opens Draw, construction forms overall arched girder 1;
Step 2:It is symmetrical to remove arch rib assembling support 8, only retain arched girder and put more energy into temporarily support 7, it is symmetrical that to remove girder assembled Support 10, arched girder is integral, stress at bearing;Using hydraulic jack by overall arched girder 1 from assembled position thrusting slip to stack The upper ship position of bridge 100;
As shown in Figures 2 to 4, by the pressure water of semi-submerged ship 2 and combination fluctuation tide, modularization falsework sections 5 is realized Alternating jacking with modularization Temporary Piers sections 4 is supported, and by the jacking of overall arched girder 1 to designed elevation, is comprised the following steps that:
Step 3:First segment modularization falsework sections 5 on semi-submerged ship 2 is lifted it is in position, on trestle 100 First segment modularization Temporary Piers sections 4 prepares in place;During low tide, semi-submerged ship 2 is pressed and dived under water, is twisted into beam bottom;At the incoming tide, partly latent The top of first segment modularization falsework sections 5 insertion beam bottom temporary support docking bayonet socket 6 on ship 2, semi-submerged ship 2 combines draining will Overall arched girder 1 is lifted, and rapidly hangs at girder bearing first segment modularization Temporary Piers sections 4 on trestle 100;During ebb tide, half The latent pressure of ship 2 water, overall arched girder 1 falls on first segment modularization Temporary Piers sections 4, and overall arched girder 1 completes first time integral jacking Highly;
Step 4:Second section modularization falsework sections 5 on semi-submerged ship 2 is lifted it is in position, on trestle 100 Two section modularization Temporary Piers sections 4 prepare in place;During low tide, semi-submerged ship 2 is pressed and dived under water, is twisted into beam bottom;At the incoming tide, semi-submerged ship The top of second section modularization falsework sections 5 insertion beam bottom temporary support docking bayonet socket 6 on 2, semi-submerged ship 2 combines draining will be whole Body arched girder 1 is lifted, and is rapidly hung in and is tipped upside down on first segment modularization second section modularization Temporary Piers sections 4 on trestle 100 and faces When pier sections 4 on, during ebb tide, the pressure water of semi-submerged ship 2, overall arched girder 1 falls on second section modularization Temporary Piers sections 4, overall arch Beam 1 completes second integral jacking highly;
Step 5:Jacking is continued cycling through according to step 4, until bridge floor reaches designed elevation;During low tide, the pressure water of semi-submerged ship 2 Dive, twists into beam bottom;During high tide level, overall arched girder 1 is lifted in the draining of semi-submerged ship 2, and semi-submerged ship 2 twists out temporary trestle bridge position, is drawn Tight wind cable 104, prepares transportation by driving;Step 6:In wind, wave smaller period, under many tractions of towboat 3, semi-submerged ship 2 is by overall arch Near the transportation by driving of beam 1 to bridge location, as shown in Figure 5;
Step 7:At the incoming tide, overall arched girder 1 is lifted in the draining of semi-submerged ship 2, is twisted into bridge location, directly lifted overall arched girder 1 to Bridge pier top;During ebb tide, the pressure water of semi-submerged ship 2, bridge pad is slowly contacted with bridge pier, and the rapid overall arched girder 1 of releasing is soft with ship Hard link, semi-submerged ship 2 leaves, and completes the erection of overall arched girder 1, as shown in Figure 6;
Step 8:The arched girder for removing overall arched girder 1 is put more energy into support 7, the tensioning of the flexible tie-rod 14 of adjustment and suspension rod 15 temporarily Power, bridge deck of constructing, Cheng Qiao is open to traffic, arch bridge into bridge overall structure diagram as shown in figure 8, including entirety arched girder 1, main pier 101st, cushion cap 102, pile foundation 103.
The above embodiment of the present invention is not limiting the scope of the present invention, and embodiments of the present invention are not limited to This, the above of the invention, according to the ordinary technical knowledge and customary means of this area, not departing from, the present invention is above-mentioned Under the premise of basic fundamental thought, modification, replacement or the change of other diversified forms made to said structure of the present invention all fall within Within protection scope of the present invention.

Claims (10)

1. a kind of integral erection system of large-scale arch bridge over strait, the arch bridge has overall arched girder (1), and overall arched girder (1) includes The arch rib (11) of arc and longitudinally disposed girder (13), it is characterised in that:Described integral erection system includes semi-submerged ship (2), towboat (3), modularization Temporary Piers sections (4), modularization falsework sections (5), beam bottom temporary support docking bayonet socket (6), arched girder is put more energy into support (7) temporarily, arch rib assembling support (8), arc rib alignment adjuster (9), girder assembling support (10) with And trestle (100), described girder assembling support (10) and arch rib assembling support (8) on bank for realizing overall arched girder (1) Integral assembling, and by assembly after overall arched girder (1) integral pushing slide onto the upper ship position of trestle (100), described beam Bottom temporary support docks bayonet socket (6) to be temporarily installed at multiple bayonet sockets at girder (13) beam bottom, described modularization Temporary Piers section Section (4) support on the trestle (100), described modularization falsework sections (5) support on the semi-submerged ship (2), Described multiple beam bottoms temporary support dock bayonet socket (6) when overall arched girder (1) integral jacking sets up for described module Change Temporary Piers sections (4) and modularization falsework sections (5) docking, described semi-submerged ship (2) is by pressure water combination fluctuation Tide, realizes the alternating jacking support of modularization Temporary Piers sections (4) and modularization falsework sections (5), by overall arched girder (1) Jacking to designed elevation, in alternately support stress, it is ensured that the quick positioning of overall arched girder (1), described towboat (3) for Semi-submerged ship (2) is connected, and the overall arched girder (1) on semi-submerged ship (2) is dragged into installation bridge location by towboat (3), is leading at the incoming tide Cross semi-submerged ship (2) draining integrally to lift overall arched girder (1), overall arched girder (1) to bridge pier top is directly lifted, by overall arched girder (1) disposable integral erection is in place, and described arched girder is put more energy into support (7) and arc rib alignment adjuster (9) setting temporarily temporarily In the overall arched girder (1), described arched girder puts more energy into support (7) by the arch rib (11) of overall arched girder (1) and girder (13) phase temporarily Connect and put more energy into, arched girder put more energy into temporarily support (7) with modularization falsework sections (5) on semi-submerged ship (2) in relative up and down Shape, power transmission strong point arched girder puts more energy into support (7) as support entirety arched girder (1) temporarily when, described arc rib alignment adjuster (9) for being temporarily disposed between arch rib assembling support (8) and arch rib (11), angle and linear tune for realizing arch rib (11) It is whole.
2. the integral erection system of large-scale arch bridge over strait according to claim 1, it is characterised in that:Described overall arched girder (1) arch rib wind brace (12), flexible tie-rod (14) and suspension rod (15) are also included, described arch rib (11) is steel construction, arch rib (11) Depth of section along bridge to change, sets dividing plate and ribbed stiffener in arch rib (11), described arch rib wind brace (12) is multiple tracks, arch rib wind Support (12) is rigidly connected with arch rib (11), and described arch rib (11) constitutes the main arch of overall arched girder (1), institute with arch rib wind brace (12) It is steel construction to state girder (13), and as being rigid tie bar, girder (13) is fixedly linked girder (13) with arch rib (11) at arch springing Connect, the suspension rod (15) hangs over the plurality of rods between girder (13) and arch rib (11) for vertical lifting, between adjacent suspension rod (15) Spacing is 8m~16m, and girder (13) is hung on arch rib (11) by suspension rod (15);The flexible tie-rod (14) is along girder (13) Length direction is disposed longitudinally on the multiply in girder (13), and flexible tie-rod (14) is anchored at the friendship of girder (13) and arch rib (11) Meet place, there is provided horizontal pull is resisting the horizontal thrust of arch rib (11).
3. the integral erection system of large-scale arch bridge over strait according to claim 2, it is characterised in that:Described towboat (3) It is many, many towboats constitute towboat group, is that described semi-submerged ship (2) provides power, positioning and anchors.
4. the integral erection system of large-scale arch bridge over strait according to claim 2, it is characterised in that:Described modularization is faced When pier sections (4) it is identical with modularization falsework sections (5) structure, be by many vertically arranged steel thin-walled columns (41) with And at least one section box truss system of steel stull (42) composition of putting more energy into of horizontally set, and in the bottom of box truss system Be provided with the bowl buckle-like that Open Side Down and construct bayonet socket (43), the upper end of the steel thin-walled column (41) be provided with ribbed stiffener (44) with And billet (45), while being provided with multigroup High-strength bolt hole in billet (45), can as needed use high-strength bolt (46) each section modularization Temporary Piers sections (4) or modularization falsework sections (5) for being pointed to upper and lower position carry out multi-segmental Fixed concatenation.
5. large-scale arch bridge over strait according to claim 2 integral erection system it is characterized in that:Described beam bottom is interim Support docks bayonet socket (6) in horn-like, in alternately support stress, it is ensured that the strong point and described module of overall arched girder (1) Change Temporary Piers sections (4) or modularization falsework sections (5) is quick and precisely positioned.
6. the integral erection system of large-scale arch bridge over strait according to claim 2, it is characterised in that:Described arched girder is interim Support (7) of putting more energy into is to be welded by the angularly disposed steel stull (72) of putting more energy into of many angularly disposed steel thin-walled columns and many Variable cross-section overall girder system, the arched girder put more energy into temporarily support (7) bottom temporary weld on girder (13), top Interim with arch rib (11) mutually to weld, described arched girder is put more energy into support (7) by the connection temporarily of described overall arched girder (1) and is added temporarily Strength, the stress and deformation that overall arched girder (1) is ensured during jacking, transportation by driving meets design requirement.
7. the integral erection system of large-scale arch bridge over strait according to claim 2, it is characterised in that:Described arch rib is assembled Support (8) is the multigroup steel truss frame system being welded by steel thin-walled column and steel stull of putting more energy into, multigroup arch rib assembling support (8) structure Into arch rib support system.
8. the integral erection system of large-scale arch bridge over strait according to claim 2, it is characterised in that:Described arc rib alignment Adjuster (9) includes jack system (91) and regulation steel plate (92), and described jack system (91) is mounted vertically in described Arch rib assembling support (8) and arch rib (11) between, for realizing arch rib angle and LFM signal, described regulation steel plate (92) it is horizontally installed between described jack system (91) and arch rib assembling support (8).
9. the integral erection system of large-scale arch bridge over strait according to claim 2, it is characterised in that:Described girder is assembled Support (10) is in arch rib assembling support (8) corresponding position by positioned at the vertically arranged steel pipe pile foundation in bottom (10a), positioned at middle part horizontal stroke Constituted to the reinforced concrete pile cap beam (10b) for setting and positioned at the vertically arranged steel pipe support in top (10c), in non-arch rib Assembling support (8) corresponding position by horizontally set concrete cushion (10d) and be vertically inserted into concrete cushion (10d) Steel pipe support (10c) is constituted.
10. large-scale arch bridge over strait is carried out using the integral erection system of the arch bridge large-scale over strait described in any one of claim 2 to 9 The construction method of integral erection, it is characterised in that the construction method comprises the following steps:
Step (1):Bank assembly levelling of the land hardening, girder assembling support (10) and arch rib assembling support (8) foundation construction, it is sliding Move track and Conveyor belt construction, girder assembling support (10) construction;The symmetrical assembly girder section on girder assembling support (10) Section, forms overall girder (13);The arch rib erection assembling support (8) on girder (13), installs arched girder and puts more energy into temporarily support (7), be adjusted to for arch rib (11) by arc rib alignment adjuster (9) by the symmetrical assembly rib-lifting section on arch rib assembling support (8) Linear, arch rib erection wind brace (12) is designed, assembly forms the main arch of overall arched girder (1);Tensioning part permanent flexible tie-rod (14), Suspension rod (15) and tensioning are installed, construction forms overall arched girder (1);
Step (2):It is symmetrical to remove arch rib assembling support (8), only retain arched girder and put more energy into temporarily support (7), it is symmetrical to remove girder spelling Dress support (10), arched girder is integral, stress at bearing;Overall arched girder (1) is slided from assembled position pushing tow using hydraulic jack Move on to the upper ship position of trestle (100);
Step (3):First segment modularization falsework sections (5) on semi-submerged ship (2) is lifted into position, trestle (100) On first segment modularization Temporary Piers sections (4) prepare in place;During low tide, semi-submerged ship (2) pressure is dived under water, is twisted into beam bottom;Rise The time of tide, first segment modularization falsework sections (5) top insertion beam bottom temporary support docks bayonet socket (6), half on semi-submerged ship (2) Latent ship (2) lifts overall arched girder (1) with reference to draining, rapidly hangs first segment modularization Temporary Piers sections (4) on trestle (100) Become owner of at beam support;During ebb tide, semi-submerged ship (2) pressure water, overall arched girder (1) falls on first segment modularization Temporary Piers sections (4), Overall arched girder (1) completes first time integral jacking highly;
Step (4):Second section modularization falsework sections (5) on semi-submerged ship (2) is lifted into position, trestle (100) Upper second section modularization Temporary Piers sections (4) prepares in place;During low tide, semi-submerged ship (2) pressure is dived under water, is twisted into beam bottom;Flood tide When, second section modularization falsework sections (5) top insertion beam bottom temporary support docks bayonet socket (6), partly latent on semi-submerged ship (2) Ship (2) lifts overall arched girder (1) with reference to draining, rapidly hangs in second section modularization Temporary Piers sections (4) on trestle (100) And tip upside down on first segment modularization Temporary Piers sections (4), during ebb tide, semi-submerged ship (2) pressure water, overall arched girder (1) falls second On section modularization Temporary Piers sections (4), overall arched girder (1) completes second integral jacking highly;
Step (5):Jacking is continued cycling through according to step (4), until bridge floor reaches designed elevation;During low tide, semi-submerged ship (2) pressure Dive under water, twist into beam bottom;During high tide level, overall arched girder (1) is lifted in semi-submerged ship (2) draining, and semi-submerged ship (2) twists out temporary trestle bridge Position, tenses wind cable (104), prepares transportation by driving;
Step (6):In wind, wave smaller period, under many tractions of towboat (3), semi-submerged ship (2) is by overall arched girder (1) transportation by driving To bridge location;
Step (7):At the incoming tide, overall arched girder (1) is lifted in semi-submerged ship (2) draining, is twisted into bridge location, directly lifts overall arched girder (1) to bridge pier top;During ebb tide, semi-submerged ship (2) pressure water, bridge pad is slowly contacted with bridge pier, rapid to release overall arched girder (1) With the soft or hard connection of ship, semi-submerged ship (2) leaves, and completes the erection of overall arched girder (1);
Step (8):The arched girder for removing overall arched girder (1) is put more energy into support (7) temporarily, adjustment flexibility tie-rod (14) and suspension rod (15) Stretching force, bridge deck of constructing, Cheng Qiao is open to traffic.
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