CN105735129A - Full-welding truss section modularized splicing method - Google Patents
Full-welding truss section modularized splicing method Download PDFInfo
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- CN105735129A CN105735129A CN201610106419.4A CN201610106419A CN105735129A CN 105735129 A CN105735129 A CN 105735129A CN 201610106419 A CN201610106419 A CN 201610106419A CN 105735129 A CN105735129 A CN 105735129A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D6/00—Truss-type bridges
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Abstract
The invention relates to a full-welding truss section modularized splicing method. According to the method, each assembly of each truss section is divided into multiple modules, and each module is independently spliced. The method includes firstly, a truss sheet module splicing method, secondly, a transverse connecting sheet module splicing method, thirdly, an upper-layer road bridge face module splicing method, fourthly, a lower-layer railway bridge face module splicing method, fifthly, a road combination section longitudinal and transverse beam splicing method and sixthly, a truss whole section module splicing method. A bridge is spliced in a modularized manner, part of the modules of the bridge can be spliced on a bridge production site, the difficulty of constructing the bridge on the site is lowered, the labor amount for manufacturing the bridge is reduced, the manufacturing time of the bridge is shortened, and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of full weldering truss sections modularization assemble method, belong to bridge technical field.
Background technology
Develop rapidly along with socioeconomic, the pressure of land transportation increasingly highlights, in order to solve this pressure, building of the projects such as substantial amounts of railway, highway is imperative, in order to cross over the great rivers that road passes through, the use of the bridge of large span tends to certainty, and people are also designed in the structure of the bridge to different distance.
nullIn the bridge of present invention research，The logical bridge in Shanghai includes main channel bridge、Special purpose channel bridge、Freely-supported steel truss girder bridge and land route, two sides access bridge，Total length 11.072km，Bridge is divided into upper and lower two-layer by function，Respectively upper strata highway layer，Lower floor's railway layer，If adopting traditional assembling process loaded down with trivial details，And time assembled at the scene setting accuracy it is difficult to ensure that，If so assembling process traditionally can not meet far away the requirement of construction period，And need workpiece Left on/Left off in operation，Add so again security risk，Traditional bridge manufacture method is suitable for manufacturing the bridge that span is little，The bridge of total length 11.072km is used conventional methods manufacture comparatively laborious，Inconvenient operation，And bridging cost is high，Therefore it is badly in need of developing a kind of manufacture method simple、The truss section assembling technique that easy to operate and precision is high，The logical bridge in this Shanghai adopts 95 modules assembled，Gross weight 127927.976t.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of full weldering truss sections modularization assemble method, it is possible to reduces the difficulty that bridge manufactures on river surface, promotes bridging efficiency.
For solving above-mentioned technical problem, the technical scheme is that
A kind of full weldering truss sections modularization assemble method, its innovative point is in that: the method is divided into several modules each assembly of truss sections, and each module is independent assembled；Including: the assembling method of S1. purlin sheet module；S2. the assembling method of horizontal-associate sheet module；S3. the assembling method of upper strata highway bridge module；S4. the assembling method of lower floor's railway deck module；S5. highway adapter section beam assembling method in length and breadth；S6. the assembling method of the whole sections module of truss；Specifically include following steps:
S1. the assembling method of purlin sheet module: purlin sheet module includes top boom, lower boom and diagonal web member, purlin sheet module be assembled on moulding bed A to complete；First by top boom and lower boom positioned parallel on moulding bed A, it is linear that top boom and lower boom are adjusted complying with camber, after adjusting the dimensional requirement in each orientation, adopts interim location measure top boom and lower boom to be fixed on the positioning；Diagonal web member is pushed up pick cooperation and is arranged between top boom and lower boom, again diagonal web member is welded with top-bottom chord node, first burn-on the weld seam between chord member and diagonal web member, the centrage coupling deviation welding the weld seam between lower boom and diagonal web member, top-bottom chord and diagonal web member again controls at≤± 0.5mm；The overall purlin sheet welded is disintegrated so that it is become single purlin sheet module, stay the module of one section of single purlin sheet as parent segment, participate in the splicing of next round；
S2. the assembling method of horizontal-associate sheet module: horizontal-associate sheet module includes node, web member and horizontal-associate sheet lower boom, and horizontal-associate sheet module completes on moulding bed B；First positioning horizontal-associate sheet lower boom on moulding bed B, horizontal-associate sheet lower boom, according to single making, becomes work shape chord member and two ends node reserves two amount of cutting with assembly welding after cover plate splicing；Assembled welding web member and node on moulding bed B successively, node is reserved two amounts of cutting in horizontal-associate sheet short transverse；After welding and having repaired horizontal-associate sheet, according to the length of horizontal-associate lamellar body and cutting node of highly ruling；Transport and hoisting process adopt temporary connection reinforce, to avoid deformation；
S3. the assembling method of upper strata highway bridge module: upper strata highway bridge module includes highway bridge Slab element and T-shaped crossbeam unit, upper strata highway bridge module be assembled on moulding bed C to complete；Road spelling adopts continuously coupling assembly welding and the assembled parallel process program of examination, often wheel four whole sections of spelling, stays one section of parent segment as next round to participate in assembly after last round of assembly completes；First highway bridge panel is carried out two-in-one assembled formation highway single-unit floorings, and then T-shaped crossbeam is positioned on the moulding bed C of simulation chord member, then highway single-unit floorings carry out assembly according to by middle part to the order of both sides on T-shaped crossbeam, longitudinal seam welding between assembled Hou Xianjiang highway single-unit floorings is got up, again transverse joint is welded, finally weld other weld seam, highway single-unit floorings after welding are drawn two and cuts non-referenced end line, cut non-referenced end line according to drawn two and carry out adjacent middle part highway single-unit floorings assembly, then the highway single-unit floorings of assembled adjacent highway single-unit floorings both sides, middle part again, repeat upper strata highroad module is installed according to above order；For ensureing the Interface Matching precision of highway bridge panel and main truss chord member horizontal plate, after highway bridge panel welding completes, line cutting both sides, control bridge deck width；
S4. the assembling method of lower floor's railway deck module: lower floor's railway deck module includes top plate unit, bottom board unit, longeron unit and board-like crossbeam unit, lower floor's railway deck module be assembled on moulding bed D to complete；Top plate unit and bottom board unit are carried out respectively two-in-one assembled formation railway single-unit bridge floor top board and railway single-unit bridge floor base plate, railway single-unit bridge floor base plate is laid to both sides by centre, railway single-unit bridge floor base plate is welded, first weld longitudinal joint, weld transverse joint again, last welded plate type crossbeam unit and top plate unit, the weld seam of bottom board unit, moulding bed D is placed on individual railroad bridge floor base plate, board-like crossbeam unit is positioned on the moulding bed D of simulation chord member, longeron unit is vertically embedded into board-like crossbeam unit carry out assembly and wouldn't weld, top plate unit assembly is laid on the upper end of longeron unit and board-like crossbeam, according to the top plate unit first laying middle part, the order of the top plate unit re-laying both sides carries out；Top plate unit and bottom board unit connect with the upper lower horizontal board penetration weld of the lower boom of purlin sheet module respectively, and board-like crossbeam unit is welded with the lower boom of purlin sheet module；
S5. highway adapter section beam assembling method in length and breadth: highway adapter section includes crossbeam, longeron and connection beam；Highway adapter section beam in length and breadth is assembled on moulding bed E and completes, and moulding bed E is provided with longeron, crossbeam positioner and portraitlandscape baseline；First the height that under being relied on moulding bed E by crossbeam according to the horizontal baseline on moulding bed, buttress sets positions, crossbeam is cut cut-to-measure by reserved for crossbeam two ends two after having positioned and is cut, then moulding bed E end gauge and Longitudinal Base location is relied on to assemble longeron, the twice connection beam being perpendicular to longeron it is equipped with again between two crossbeams, finally carry out weld seam, welding adopts first weldering crossbeam and longeron weld seam, and the rear order welding connection beam weld seam carries out；
S6. the assembling method of truss whole sections module: the whole sections of truss includes purlin sheet module, horizontal-associate sheet module, upper strata highway bridge module and lower floor's railway deck module；The whole sections module spliced of truss is contained on moulding bed F and completes, and moulding bed F to arrange temporary support and fixing device, it is ensured that assembled stable safety and splicing accuracy；First on moulding bed F, position lower floor's railway deck module of side, secondly adopt interim location measure that middle purlin sheet module is installed at the side of the railway deck module of lower floor, then adopt interim location measure that lower floor's railway deck module of opposite side is carried out assembly at the opposite side of middle purlin sheet module, by Liang Kuai lower floor railway deck module after the location assembly of middle sheet module both sides, purlin completes, it is respectively mounted side purlin sheet module again in the both sides of Liang Kuai lower floor railway deck module, then adopt interim location measure auxiliary that horizontal-associate sheet module is installed between middle purlin sheet module and dual-side purlin sheet module, last again in horizontal-associate sheet upper strata installed above highway bridge module；Assembly carries out quality halt detection after completing, lower tire transhipment of disintegrating after qualified, stays parent segment to participate in the lower whole section assembling of round；The whole sections of truss is installed first section and is carried out assembly in the following order: (1) side lower floor railway deck module location；(2) in the middle of, purlin sheet module is assembled；(3) opposite side lower floor railway deck module is assembled；(4) sheet module in purlin, both sides is assembled；(5) horizontal-associate sheet module is assembled；(6) highway bridge module in upper strata is assembled；The whole sections of follow-up truss is assembled in the following order to be advanced: in the middle of (1), purlin sheet module is assembled；(2) both sides lower floor railway deck module is assembled；(3) sheet module in purlin, both sides is assembled；(4) horizontal-associate sheet module is assembled；(5) highway bridge module in upper strata is assembled；The highway bridge panel of upper strata highway bridge module and crossbeam all adopt penetration to weld when welding with the top boom of purlin sheet module, when lower floor's railway deck module connects between whole sections, its roof and floor unit is connected as the docking of penetration building site, and except being welded to connect except the employing of levels floorings between whole sections, all the other all adopt high strength exploitation.
Described purlin sheet module is in the whole sections module assembly of truss, and the chord member between two purlin sheets adopts high strength exploitation, is also adopted by high strength exploitation between the brace of purlin sheet module.
In described purlin sheet environment in the open, location assembles and measures needs before sunrise, avoiding solar radiation, to consider fetalism and the impact of purlin sheet linear expansion coefficient under sunshine during welding, in case fetalism deformation effect dimensional accuracy.
Web member and the top boom spacing not spot welding in spacing shelves angle when described purlin sheet assembles, relocate after web member completes with lower boom weld seam and weld, so as to web member has the space freely stretched in the longitudinal direction when lower-chord panel point welds, reduce welding and shrink the impact that purlin is high.
When being assembled in assembled purlin sheet module of the whole sections module of described truss, sheet purlin, the three overall purlins high bias direction of same whole sections is consistent, and within the scope of tolerance.
The position of described welding needs to utilize the position that ultrasonic listening instrument butt welding connects to carry out carrying out flaw detection after having welded.
The positioner of the upper setting of described moulding bed E arranges keyhole and utilizes punch to position with end longeron keyhole in its end.
It is an advantage of the current invention that: this entirely welds truss sections modularization assemble method and achieves the modularization assemble of bridge, it is that some little modules carry out independent assembly truss sections Module Division, the coupling between relevant little module can be realized assembled, assembled operation is reasonable and assembled simple to operate, just the part of module assembly of bridge can be got up in the place produced, reduce the difficulty of on-the-spot bridging, decrease the amount of labour that bridge manufactures, shorten the time that bridge manufactures, improve the efficiency of work；The steel structure material of bridge adopts the 6th generation high strength steel of Q500qE, adds the intensity of Parameters of Bridge Steel Under；In the full process welding truss section assembling, the assembly of each module adopts special moulding bed, it is ensured that the precision that each sections module is assembled；All adopt ultrasonic listening instrument butt welding to connect position after each welding position has welded to detect a flaw, it is ensured that the effect of welding.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the axonometric chart of truss sections modularization assemble.
Fig. 2 is the splicing structure figure of purlin sheet module.
Fig. 3 is the assembled flow chart of purlin sheet module.
Fig. 4 is the splicing structure figure of horizontal-associate sheet module.
Fig. 5 is the assembled flow chart of horizontal-associate sheet module.
Fig. 6 is upper strata highway bridge module process flow chart.
Fig. 7 is the splicing structure figure of lower floor's railway deck module.
Fig. 8 is lower floor's railway deck module assembly flow chart.
Fig. 9 is the assembled flow chart of truss whole sections module.
As shown in Figures 1 to 9: 1, purlin sheet module；11, top boom；12, lower boom；13, diagonal web member；2, horizontal-associate sheet module；21, node；22, web member；23, horizontal-associate sheet lower boom；3, upper strata highway bridge module；31, floorings unit；32, T-shaped crossbeam unit；4, lower floor's railway deck module；41, top plate unit；42, bottom board unit；43, longeron unit；44, board-like crossbeam unit；5, highway adapter section；51, crossbeam；52, longeron；53, connection beam；
6, the whole sections module of truss.
Detailed description of the invention
The following examples can make professional and technical personnel more fully understand the present invention, but does not therefore limit the present invention among described scope of embodiments.
A kind of full weldering truss sections modularization assemble method as shown in Figures 1 to 9: the method is divided into several modules each assembly of truss sections, and each module is independent assembled；Including: the assembling method of S1. purlin sheet module 1；S2. the assembling method of horizontal-associate sheet module 2；S3. the assembling method of upper strata highway bridge module 3；S4. the assembling method of lower floor's railway deck module 4；S5. highway adapter section 5 beam assembling method in length and breadth；S6. the assembling method of the whole sections module 6 of truss；Specifically include following steps:
S1. the assembling method of purlin sheet module 1: purlin sheet module includes top boom 11, lower boom 12 and diagonal web member 13, purlin sheet module 1 be assembled on moulding bed A to complete；First by top boom 11 and lower boom 12 positioned parallel on moulding bed A, it is linear that top boom 11 and lower boom 12 are adjusted complying with camber, after adjusting the dimensional requirement in each orientation, adopts interim location measure top boom 11 and lower boom 12 to be fixed on the positioning；Being coordinated with top pick by diagonal web member 13 is arranged between top boom 11 and lower boom 12, again diagonal web member 13 is welded with top-bottom chord node, first burn-on the weld seam between chord member 11 and diagonal web member 13, welding the weld seam between lower boom 12 and diagonal web member 13 again, the centrage coupling deviation of top-bottom chord and diagonal web member 13 controls at≤± 0.5mm；The overall purlin sheet welded is disintegrated so that it is become single purlin sheet module, stay the module of one section of single purlin sheet as parent segment, participate in the splicing of next round.
S2. the assembling method of horizontal-associate sheet module 2: horizontal-associate sheet module 2 includes node 21, web member 22 and horizontal-associate sheet lower boom 23, and horizontal-associate sheet module 2 completes on moulding bed B；First positioning horizontal-associate sheet lower boom 23 on moulding bed B, horizontal-associate sheet lower boom 23, according to single making, becomes work shape chord member and two ends node reserves two amount of cutting with assembly welding after cover plate splicing；Assembled welding web member 22 and node 21 on moulding bed B successively, node is reserved two amounts of cutting in horizontal-associate sheet module 2 short transverse；After welding and having repaired horizontal-associate sheet module 2, according to the length of horizontal-associate sheet module 2 and cutting node of highly ruling；Transport and hoisting process adopt temporary connection reinforce, to avoid deformation.
S3. the assembling method of upper strata highway bridge module 3: upper strata highway bridge module 3 includes highway bridge Slab element 31 and T-shaped crossbeam unit 32, upper strata highway bridge module 3 be assembled on moulding bed C to complete；Road spelling adopts continuously coupling assembly welding and the assembled parallel process program of examination, often wheel four whole sections of spelling, stays one section of parent segment as next round to participate in assembly after last round of assembly completes；First highway bridge panel is carried out two-in-one assembled formation highway single-unit floorings, and then T-shaped crossbeam unit 32 is positioned on the moulding bed C of simulation chord member, then highway single-unit floorings carry out assembly according to by middle part to the order of both sides unit 32 on T-shaped crossbeam, longitudinal seam welding between assembled Hou Xianjiang highway single-unit floorings is got up, again transverse joint is welded, finally weld other weld seam, highway single-unit floorings after welding are drawn two and cuts non-referenced end line, cut non-referenced end line according to drawn two and carry out adjacent middle part highway single-unit floorings assembly, then the highway single-unit floorings of assembled adjacent highway single-unit floorings both sides, middle part again, repeat upper strata highway bridge module 3 is installed according to above order；For ensureing the Interface Matching precision of highway bridge panel 31 and main truss chord member horizontal plate, after highway bridge panel welding completes, line cutting both sides, control bridge deck width.
S4. the assembling method of lower floor's railway deck module 4: lower floor's railway deck module 4 includes top plate unit 41, bottom board unit 42, longeron unit 43 and board-like crossbeam unit 44, lower floor's railway deck module 4 be assembled on moulding bed D to complete；Top plate unit 41 and bottom board unit 42 are carried out respectively two-in-one assembled formation railway single-unit bridge floor top board and railway single-unit bridge floor base plate, railway single-unit bridge floor base plate is laid to both sides by centre, railway single-unit bridge floor base plate is welded, first weld longitudinal joint, weld transverse joint again, last welded plate type crossbeam unit 44 and top plate unit 41, the weld seam of bottom board unit 42, moulding bed D is placed on individual railroad bridge floor base plate, board-like crossbeam unit 44 is positioned on the moulding bed D of simulation chord member, longeron unit 43 is vertically embedded into board-like crossbeam unit 44 carry out assembly and wouldn't weld, top plate unit 41 assembly is laid on the upper end of longeron unit 43 and board-like crossbeam 44, according to the top plate unit 41 first laying middle part, the order of the top plate unit 41 re-laying both sides carries out；Top plate unit 41 and bottom board unit 42 connect with the upper lower horizontal board penetration weld of the lower boom 12 of purlin sheet module 1 respectively, and board-like crossbeam unit 44 is welded with the lower boom 12 of purlin sheet module 1.
S5. highway adapter section 5 beam assembling method in length and breadth: highway adapter section includes crossbeam 51, longeron 52 and connection beam 53；Highway adapter section 5 beam in length and breadth is assembled on moulding bed E and completes, and moulding bed E is provided with longeron 52, crossbeam 51 positioner and portraitlandscape baseline；First the height that under being relied on moulding bed E by crossbeam 51 according to the horizontal baseline on moulding bed, buttress sets positions, crossbeam 51 is cut cut-to-measure by reserved for crossbeam 51 two ends two after having positioned and is cut, then moulding bed E end gauge and Longitudinal Base location is relied on to assemble longeron 52, the twice connection beam 53 being perpendicular to longeron 52 it is equipped with again between two crossbeams 51, finally carry out weld seam, welding adopts first weldering crossbeam 51 and longeron 52 weld seam, and the rear order welding connection beam 53 weld seam carries out.
S6. the assembling method of truss whole sections module 6: the whole sections of truss includes purlin sheet module 1, horizontal-associate sheet module 2, upper strata highway bridge module 3 and lower floor's railway deck module 4；The whole sections module 6 of truss is assembled on moulding bed F and completes, and moulding bed F to arrange temporary support and fixing device, it is ensured that assembled stable safety and splicing accuracy；First on moulding bed F, position the lower floor railway deck module 4a of side, secondly adopt interim location measure that middle purlin sheet module 1 is installed at the side of the railway deck module 4 of lower floor, then adopt interim location measure that the lower floor railway deck module 4b of opposite side is carried out assembly at the opposite side of middle purlin sheet module 1a, by Liang Kuai lower floor railway deck module 4 after the location assembly of middle sheet module 1a both sides, purlin completes, it is respectively mounted side purlin sheet module 1b again in the both sides of Liang Kuai lower floor railway deck module 4, then adopt interim location measure auxiliary that horizontal-associate sheet module 2 is installed between middle purlin sheet module 1a and dual-side purlin sheet module 1b, last again in horizontal-associate sheet upper strata installed above highway bridge module 3；Assembly carries out quality halt detection after completing, lower tire transhipment of disintegrating after qualified, stays parent segment to participate in the lower whole section assembling of round；The whole sections of truss is installed first section and is carried out assembly in the following order: (1) side lower floor railway deck module 4a positions；(2) in the middle of, purlin sheet module 1a is assembled；(3) opposite side lower floor railway deck module 4b is assembled；(4) sheet module 1b in purlin, both sides is assembled；(5) horizontal-associate sheet module 2 is assembled；(6) upper strata highway bridge module 3 is assembled；The whole sections of follow-up truss is assembled in the following order to be advanced: in the middle of (1), purlin sheet module 1a is assembled；(2) both sides lower floor railway deck module 4 is assembled；(3) sheet module 1b in purlin, both sides is assembled；(4) horizontal-associate sheet module 2 is assembled；(5) upper strata highway bridge module 3 is assembled；The highway bridge panel of upper strata highway bridge module 3 and crossbeam all adopt penetration to weld when welding with the top boom 11 of purlin sheet module 1, when lower floor's railway deck module 4 connects between whole sections, its roof and floor unit is connected as the docking of penetration building site, and except being welded to connect except the employing of levels floorings between whole sections, all the other all adopt high strength exploitation.
Purlin sheet module 1 is in the whole sections module assembly of truss, and the chord member between two purlin sheets adopts high strength exploitation, is also adopted by high strength exploitation between the brace of purlin sheet module 1.
In purlin sheet module 1 environment in the open, location assembles and measures needs before sunrise, avoiding solar radiation, to consider fetalism and the impact of purlin sheet linear expansion coefficient under sunshine during welding, in case fetalism deformation effect dimensional accuracy.
Web member and the top boom 11 spacing not spot welding in spacing shelves angle when purlin sheet module 1 assembles, relocate after web member completes with lower boom weld seam and weld, so as to web member has the space freely stretched in the longitudinal direction when lower-chord panel point welds, reduce welding and shrink the impact that purlin is high.
When being assembled in assembled purlin sheet module of the whole sections module 6 of truss, sheet module 1 purlin, the three overall purlins high bias direction of same whole sections is consistent, and within the scope of tolerance.
The position of welding needs to utilize the position that ultrasonic listening instrument butt welding connects to carry out carrying out flaw detection after having welded.
The positioner of the upper setting of moulding bed E arranges keyhole and utilizes punch to position with end longeron keyhole in its end.
Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (7)
1. a full weldering truss sections modularization assemble method, it is characterised in that: the method is divided into several modules each assembly of truss sections, and each module is independent assembled；Including: the assembling method of S1. purlin sheet module；S2. the assembling method of horizontal-associate sheet module；S3. the assembling method of upper strata highway bridge module；S4. the assembling method of lower floor's railway deck module；S5. highway adapter section beam assembling method in length and breadth；S6. the assembling method of the whole sections module of truss；Specifically include following steps:
S1. the assembling method of purlin sheet module: purlin sheet module includes top boom, lower boom and diagonal web member, purlin sheet module be assembled on moulding bed A to complete；First by top boom and lower boom positioned parallel on moulding bed A, it is linear that top boom and lower boom are adjusted complying with camber, after adjusting the dimensional requirement in each orientation, adopts interim location measure top boom and lower boom to be fixed on the positioning；Diagonal web member is pushed up pick cooperation and is arranged between top boom and lower boom, again diagonal web member is welded with top-bottom chord node, first burn-on the weld seam between chord member and diagonal web member, the centrage coupling deviation welding the weld seam between lower boom and diagonal web member, top-bottom chord and diagonal web member again controls at≤± 0.5mm；The overall purlin sheet welded is disintegrated so that it is become single purlin sheet module, stay the module of one section of single purlin sheet as parent segment, participate in the splicing of next round；
S2. the assembling method of horizontal-associate sheet module: horizontal-associate sheet module includes node, web member and horizontal-associate sheet lower boom, and horizontal-associate sheet module completes on moulding bed B；First positioning horizontal-associate sheet lower boom on moulding bed B, horizontal-associate sheet lower boom, according to single making, becomes work shape chord member and two ends node reserves two amount of cutting with assembly welding after cover plate splicing；Assembled welding web member and node on moulding bed B successively, node is reserved two amounts of cutting in horizontal-associate sheet short transverse；After welding and having repaired horizontal-associate sheet, according to the length of horizontal-associate lamellar body and cutting node of highly ruling；Transport and hoisting process adopt temporary connection reinforce, to avoid deformation；
S3. the assembling method of upper strata highway bridge module: upper strata highway bridge module includes highway bridge Slab element and T-shaped crossbeam unit, upper strata highway bridge module be assembled on moulding bed C to complete；Road spelling adopts continuously coupling assembly welding and the assembled parallel process program of examination, often wheel four whole sections of spelling, stays one section of parent segment as next round to participate in assembly after last round of assembly completes；First highway bridge panel is carried out two-in-one assembled formation highway single-unit floorings, and then T-shaped crossbeam is positioned on the moulding bed C of simulation chord member, then highway single-unit floorings carry out assembly according to by middle part to the order of both sides on T-shaped crossbeam, longitudinal seam welding between assembled Hou Xianjiang highway single-unit floorings is got up, again transverse joint is welded, finally weld other weld seam, highway single-unit floorings after welding are drawn two and cuts non-referenced end line, cut non-referenced end line according to drawn two and carry out adjacent middle part highway single-unit floorings assembly, then the highway single-unit floorings of assembled adjacent highway single-unit floorings both sides, middle part again, repeat upper strata highway bridge module is installed according to above order；For ensureing the Interface Matching precision of highway bridge panel and main truss chord member horizontal plate, after upper strata highway bridge panel welding completes, line cutting both sides, control bridge deck width；
S4. the assembling method of lower floor's railway deck module: lower floor's railway deck module includes top plate unit, bottom board unit, longeron unit and board-like crossbeam unit, lower floor's railway deck module be assembled on moulding bed D to complete；Top plate unit and bottom board unit are carried out respectively two-in-one assembled formation railway single-unit bridge floor top board and railway single-unit bridge floor base plate, railway single-unit bridge floor base plate is laid to both sides by centre, railway single-unit bridge floor base plate is welded, first weld longitudinal joint, weld transverse joint again, last welded plate type crossbeam unit and top plate unit, the weld seam of bottom board unit, moulding bed D is placed on individual railroad bridge floor base plate, board-like crossbeam unit is positioned on the moulding bed D of simulation chord member, longeron unit is vertically embedded into board-like crossbeam unit carry out assembly and wouldn't weld, top plate unit assembly is laid on the upper end of longeron unit and board-like crossbeam, according to the top plate unit first laying middle part, the order of the top plate unit re-laying both sides carries out；Top plate unit and bottom board unit connect with the upper lower horizontal board penetration weld of the lower boom of purlin sheet module respectively, and board-like crossbeam unit is welded with the lower boom of purlin sheet module；
S5. highway adapter section beam assembling method in length and breadth: highway adapter section includes crossbeam, longeron and connection beam；Highway adapter section beam in length and breadth is assembled on moulding bed E and completes, and moulding bed E is provided with longeron, crossbeam positioner and portraitlandscape baseline；First the height that under being relied on moulding bed E by crossbeam according to the horizontal baseline on moulding bed, buttress sets positions, crossbeam is cut cut-to-measure by reserved for crossbeam two ends two after having positioned and is cut, then moulding bed E end gauge and Longitudinal Base location is relied on to assemble longeron, the twice connection beam being perpendicular to longeron it is equipped with again between two crossbeams, finally carry out weld seam, welding adopts first weldering crossbeam and longeron weld seam, and the rear order welding connection beam weld seam carries out；
S6. the assembling method of truss whole sections module: the whole sections of truss includes purlin sheet module, horizontal-associate sheet module, upper strata highway bridge module and lower floor's railway deck module；The whole sections module spliced of truss is contained on moulding bed F and completes, and moulding bed F to arrange temporary support and fixing device, it is ensured that assembled stable safety and splicing accuracy；First on moulding bed F, position lower floor's railway deck module of side, secondly adopt interim location measure that middle purlin sheet module is installed at the side of the railway deck module of lower floor, then adopt interim location measure that lower floor's railway deck module of opposite side is carried out assembly at the opposite side of middle purlin sheet module, by Liang Kuai lower floor railway deck module after the location assembly of middle sheet module both sides, purlin completes, it is respectively mounted side purlin sheet module again in the both sides of Liang Kuai lower floor railway deck module, then adopt interim location measure auxiliary that horizontal-associate sheet module is installed between middle purlin sheet module and dual-side purlin sheet module, last again in horizontal-associate sheet upper strata installed above highway bridge module；Assembly carries out quality halt detection after completing, lower tire transhipment of disintegrating after qualified, stays parent segment to participate in the lower whole section assembling of round；The whole sections of truss is installed first section and is carried out assembly in the following order: (1) side lower floor railway deck module location；(2) in the middle of, purlin sheet module is assembled；(3) opposite side lower floor railway deck module is assembled；(4) sheet module in purlin, both sides is assembled；(5) horizontal-associate sheet module is assembled；(6) highway bridge module in upper strata is assembled；The whole sections of follow-up truss is assembled in the following order to be advanced: in the middle of (1), purlin sheet module is assembled；(2) both sides lower floor railway deck module is assembled；(3) sheet module in purlin, both sides is assembled；(4) horizontal-associate sheet module is assembled；(5) highway bridge module in upper strata is assembled；The highway bridge panel of upper strata highway bridge module and crossbeam all adopt penetration to weld when welding with the top boom of purlin sheet module, when lower floor's railway deck module connects between whole sections, its roof and floor unit is connected as the docking of penetration building site, and except being welded to connect except the employing of levels floorings between whole sections, all the other all adopt high strength exploitation.
2. one according to claim 1 welds truss sections modularization assemble method entirely, it is characterized in that: described purlin sheet module is in the whole sections module assembly of truss, chord member between two purlin sheets adopts high strength exploitation, is also adopted by high strength exploitation between the brace of purlin sheet module.
3. one according to claim 1 welds truss sections modularization assemble method entirely, it is characterized in that: in described purlin sheet module environment in the open, location assembles and measures needs before sunrise, avoid solar radiation, fetalism and the impact of purlin sheet linear expansion coefficient is considered during welding under sunshine, in case fetalism deformation effect dimensional accuracy.
4. one according to claim 1 welds truss sections modularization assemble method entirely, it is characterized in that: web member and the top boom spacing not spot welding in spacing shelves angle during described purlin sheet module assembled, relocate after web member completes with lower boom weld seam and weld, so as to web member has the space freely stretched in the longitudinal direction when lower-chord panel point welds, reduce welding and shrink the impact that purlin is high.
5. one according to claim 1 welds truss sections modularization assemble method entirely, it is characterized in that: when being assembled in assembled purlin sheet module of the whole sections module of described truss, sheet module purlin, the three overall purlins high bias direction of same whole sections is consistent, and within the scope of tolerance.
6. one according to claim 1 welds truss sections modularization assemble method entirely, it is characterised in that: the position of described welding needs to utilize the position that ultrasonic listening instrument butt welding connects to carry out carrying out flaw detection after having welded.
7. one according to claim 1 welds truss sections modularization assemble method entirely, it is characterised in that: the positioner of the upper setting of described moulding bed E arranges keyhole and utilizes punch to position with end longeron keyhole in its end.
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| CN114808750A (en) * | 2022-04-25 | 2022-07-29 | 中铁山桥(南通)有限公司 | Manufacturing and assembling process for double-layer highway bridge deck steel truss girder segments |
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| CN107775240A (en) * | 2016-08-29 | 2018-03-09 | 西尼机电（杭州）有限公司 | A kind of truss welding frock technique |
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| CN110373989A (en) * | 2019-07-22 | 2019-10-25 | 中铁大桥局集团有限公司 | A kind of whole segment manufacturing method of non-major P.E.subject steel truss girder closure section |
| CN110373988A (en) * | 2019-07-22 | 2019-10-25 | 中铁大桥局集团有限公司 | The big segment steel truss girder and manufacturing technology of a kind of band pair purlin |
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| CN113047153A (en) * | 2021-02-07 | 2021-06-29 | 中铁四局集团有限公司 | Method for manufacturing all-welded U-shaped steel structure aqueduct |
| CN113042981A (en) * | 2021-04-21 | 2021-06-29 | 中国水利水电第十工程局有限公司 | End column structure assembling tool and rigid water-stopping herringbone gate manufacturing method |
| CN113042981B (en) * | 2021-04-21 | 2022-02-01 | 中国水利水电第十工程局有限公司 | End column structure assembling tool and rigid water-stopping herringbone gate manufacturing method |
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Address after: 226500 Wenjin Road, Yangtze River Town, Rugao City, Nantong City, Jiangsu Province Patentee after: China Railway Shanqiao (Nantong) Co.,Ltd. Address before: 226500 Wenjin Road, Yangtze River Town, Rugao City, Nantong City, Jiangsu Province Patentee before: JIANGSU CHINA RAILWAY SHANHAIGUAN BRIDGE HEAVY INDUSTRY Co.,Ltd. |