CN102535351B - Web plate type bridge fabrication machine for constructing bridge under strong wind and high altitude conditions and construction process - Google Patents

Web plate type bridge fabrication machine for constructing bridge under strong wind and high altitude conditions and construction process Download PDF

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Publication number
CN102535351B
CN102535351B CN 201210061548 CN201210061548A CN102535351B CN 102535351 B CN102535351 B CN 102535351B CN 201210061548 CN201210061548 CN 201210061548 CN 201210061548 A CN201210061548 A CN 201210061548A CN 102535351 B CN102535351 B CN 102535351B
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fabrication machine
bridge
joist
bridge fabrication
girder section
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CN102535351A (en
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苗文怀
邵怀全
雷耀军
王俊辉
姚长文
仲维玲
邓有辉
田育虎
邱成林
王炳乾
王群英
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China Railway 20th Bureau Group Corp
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China Railway 20th Bureau Group Corp
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Abstract

The invention discloses a web plate type bridge fabrication machine for constructing a bridge under strong wind and high altitude conditions and a construction process. The bridge fabrication machine comprises a bridge fabrication machine main body structure, a crown block system and a forward movement system, wherein the bridge fabrication machine main body structure comprises a left main body splicing structure and a right main body splicing structure which are distributed symmetrically; each main body splicing structure comprises a main beam section, a guide beam section and a tail beam feeding cantilever section; and low trimming beams which are distributed horizontally and are formed by assembling a left trimming beam with a right trimming beam are arranged under the main beam sections in the two main body splicing structures. The construction process comprises the following steps of: 1, splicing a first hole beam in a single hole beam or a multi-hole beam; 2, constructing the next hole beam; and 3, repeatedly constructing until all construction processes of constructed beams are finished. The bridge fabrication machine has a reasonable structural design, high construction efficiency, high bearing capacity and a good using effect, is convenient to process, manufacture and splice, is easy and convenient to operate, and can quickly and safely finish a section splicing construction process of a large-cross-section bridge under the strong wind and high altitude conditions with high quality.

Description

Web plate type bridge fabrication machine for constructing bridge and construction technology under strong wind and high altitude conditions
Technical field
The invention belongs to bridge fabrication machine assembling construction technical field, especially relate to Web plate type bridge fabrication machine for constructing bridge and construction technology under a kind of strong wind and high altitude conditions.
Background technology
The high 46.5m of maximum pier of newly-built Lan-xing Railway the second double line (Xinjiang section) LXTJ1 mark DK1123+907 Hongliuhe grand bridge (L=1651.19m), superstructure is 33 hole 48m prestressed concrete two-wire simple supported box beams, adopts the section assembling technology to construct.The 48m prestressed concrete two-wire simple supported box beam that adopts is assemblied to form continuously by 11 box girder segments.During practice of construction, the heaviest sections weight 150t in 11 box girder segments that adopt, whole opening box girder weight 1800t, the case depth of beam is that 4.6m and its bridge floor transverse width are 12.2m, thereby the box section area is larger, belong to large-tonnage, heavy in section case beam, adopt common railway bridge fabrication machine, can't set up at all.
In addition, the cigarette pier II level wind district that is located in severe cold Gobi desert, Xinjiang due to this bridge, the this area take dry, amount of precipitation is little, ice period is long, day and night temperature is large, spring and autumn is windy, summer is very brief and hot, winter is very long and severe cold as its principal character, annual average wind speed 4.5m/s, maximum regularly wind speed 19.8m/s, extreme wind speed 25.8m/s year after year year after year.Strong wind takes place frequently under weather, the box girder pre-stressed concrete two-wire of the 48m simple supported box beam that with the construction speed index in 12.5 days/hole, 11 box girder segments is assembled into 1800t weight in the high-altitude of the nearly 52m of operation maximum height, and security risk is high, and difficulty of construction is very large.
Nowadays, generally adopt the suspension bridge fabrication machine to carry out precast segment box girder assembling construction, and part work point is because Bridge Pier is lower, physical features is more smooth, and under the traveling dependence bridge of bridge fabrication machine, walking rails is completed.But due to this bridge owing to being located in the strong wind district, and multiple holes under the multinomial unfavorable factors such as strong wind district, high-altitude, is carried out consolidation service and the wet seam construction of large-tonnage, heavy in section case beam across high nearly 50 meters of pier, security risk is high, and the suffered extraneous objective factor of constructing is disturbed large.Simultaneously, from weighing 1800t, the heaviest sections reaches 150t, has greatly increased the requirement of bridge fabrication machine at aspects such as load-bearing, lifting, linear controls due to this bridge case beam.Thereby, be essential existing bridge fabrication machine structure and assembling construction process are improved, design a kind of construction demand under strong wind and high altitude conditions, assembling construction process is simple and construction effect is good bridge fabrication machine of being applicable to.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, provides a kind of reasonable in design, processing and fabricating and assembly unit easy for installation and use Web plate type bridge fabrication machine for constructing bridge under strong wind easy and simple to handle, that weight capacity is strong, result of use is good and high altitude conditions.
for solving the problems of the technologies described above, the technical solution used in the present invention is: Web plate type bridge fabrication machine for constructing bridge under a kind of strong wind and high altitude conditions, comprise the bridge fabrication machine agent structure, be arranged on described bridge fabrication machine agent structure top and a plurality of beam sections of construction bridges lift respectively with the Overhead travelling crane system of transferring and drag the reach system that described bridge fabrication machine agent structure integral level moves forward to being assemblied to form, and be arranged on respectively from front to back described bridge fabrication machine agent structure lower front, the front leg strut of below, middle part and lower rear, middle supporting leg and rear support leg, described reach system is laid on described bridge fabrication machine agent structure, it is characterized in that: described bridge fabrication machine agent structure comprises that two left and right are the symmetrical main body splicing structure of laying, the structure of two described main body splicing structures and size are all identical and both all be vertically to laying, connect as one to the upper portion connecting structure of laying by being level between the top of two described main body splicing structures, described main body splicing structure comprises the girder section, be laid in the nose girder section of girder section front portion and be laid in the afterbody feeding beam cantilever segment at girder section rear portion, and described nose girder section is positioned at the dead ahead of girder section, and afterbody feeding beam cantilever segment is positioned at the dead astern of girder section, described girder section, nose girder section and afterbody feeding beam cantilever segment all for by upper chord, lower chord and be arranged on upper chord and lower chord between web member be assemblied to form and be vertically to the plane frame of laying, described girder section for by the upper strata plane frame, be positioned at the middle level plane frame under the plane frame of described upper strata and be positioned at three layers of trussed construction that the lower floor's plane frame under the plane frame of described middle level forms, the vertical height of described upper strata plane frame, middle level plane frame and lower floor's plane frame is all identical, the bottom of described nose girder section is mutually concordant with the bottom of described middle level plane frame, and the bottom of afterbody feeding beam cantilever segment is mutually concordant with the middle part of described middle level plane frame,
Be provided with under girder section in two described main body splicing structures and be level to the lower joist of laying, girder section in two described main body splicing structures is respectively left side girder section and is positioned at the right side girder section on girder section right side, described left side, the transverse width of described lower joist is identical with spacing between girder section right side, described left side and right side girder section, and lower joist is assembled by left side joist and the right side joist that is positioned at joist right side, described left side, and described left side joist and right side joist are that bilateral symmetry is laid and structure both is all identical with size; Connect by connector between the inside portion of described left side joist and right side joist, and all be connected in hinged way between the bottom of between the bottom of the outside portion of described left side joist and described left side girder section and the outside portion of described right side joist and described right side girder section.
Web plate type bridge fabrication machine for constructing bridge under above-mentioned strong wind and high altitude conditions is characterized in that: described left side joist and described right side joist include horizontal tray and are laid in from front to back a plurality of vertical height adjustment parts on described horizontal tray.
Web plate type bridge fabrication machine for constructing bridge under above-mentioned strong wind and high altitude conditions, it is characterized in that: described left side joist and described right side joist are from front to back the assembly type joist that a plurality of planes joist of laying is assemblied to form continuously, and connect by assembly between adjacent two the described plane joists in front and back.
Web plate type bridge fabrication machine for constructing bridge under above-mentioned strong wind and high altitude conditions, it is characterized in that: described front leg strut, the quantity of middle supporting leg and rear support leg is two, two described front leg struts are symmetrical respectively is arranged on two nose girder section lower front in described main body splicing structure, and front leg strut can move forward and backward along the nose girder section, described nose girder section bottom is provided with the horizontal sliding track that moves forward and backward for front leg strut, described front leg strut comprises and is vertical telescopic legs one to laying and is arranged on described telescopic legs one top and can takes turns along the slippage that described horizontal sliding track moves forward and backward, two described middle supporting legs are arranged on two middle leg support columns below the nose girder section rearward end in described main body splicing structure for symmetrical respectively, and described middle leg support column comprises middle leg upper supporting column and the middle leg lower supporting rod that is arranged on described middle leg upper supporting column below, two described rear support legs are the symmetrical back leg support column that is arranged on two afterbody feeding beam cantilever segment front portions in described main body splicing structure respectively.
Web plate type bridge fabrication machine for constructing bridge under above-mentioned strong wind and high altitude conditions is characterized in that: the longitudinal length of described lower joist is less than the longitudinal length of girder section, institute's construction bridges is single hole beam or multi-hole beam, each Kong Liang in institute's construction bridges forms by a plurality of segment installations, described each hole beam supports fixingly by being positioned at bottom, its rear and front end and two adjacent Bridge Pier of front and back respectively, and two described Bridge Pier are respectively the front side Bridge Pier and are positioned at the rear side Bridge Pier of described front side Bridge Pier rear side, a plurality of described beam sections in described each Kong Liang includes the front end beam sections that is positioned at front side, the rear end beam sections of rear side and be laid in from front to back described front end beam sections and described rear end beam sections between a plurality of middle parts beam sections, described lower joist is between two described Bridge Pier and carry out the platform for lining of integral assembling to being supported in a hole beam between two described Bridge Pier, spacing between two described Bridge Pier is D and is supported in described front end beam sections between two described Bridge Pier and the longitudinal length of described rear end beam sections is d, the rearward end of the spacing between the leading section of described lower joist and described front side Bridge Pier and lower joist and the spacing between described rear side Bridge Pier are all less than d, the longitudinal length of described girder section and nose girder section is all greater than D, and the longitudinal length of lower joist is less than D.
Web plate type bridge fabrication machine for constructing bridge under above-mentioned strong wind and high altitude conditions is characterized in that: the height of institute's construction bridges is h, and the vertical height of described upper strata plane frame, middle level plane frame and lower floor's plane frame all is not less than h; In institute's construction bridges, the longitudinal length of each Kong Liang is L and L=48m ± 5m, the longitudinal length of described girder section is 55m ± 5m, the longitudinal length of described lower joist is 45m ± 5m, and the longitudinal length of described afterbody feeding beam cantilever segment is 10m ± 2m, and the longitudinal length of nose girder section is 55m ± 5m.
Simultaneously, the invention also discloses a kind of construction sequence simple, realize convenient and efficiency of construction is high, can carry out the bridge assembling construction process of high-quality construction under strong wind and high altitude conditions to the heavy in section bridge, institute's construction bridges is single hole beam or multi-hole beam, and each Kong Liang in institute's construction bridges forms by a plurality of segment installations, described each hole beam supports respectively fixing by two Bridge Pier that are positioned at bottom, its rear and front end, it is characterized in that this technique comprises the following steps:
The first hole beam in step 1, assembling construction single hole beam or assembling construction multi-hole beam: two Bridge Pier that construction single hole beam or the first hole beam are supported are respectively between Bridge Pier one and Bridge Pier two, described Bridge Pier two adjacent with described Bridge Pier one and its be positioned at described Bridge Pier one front side, described Bridge Pier one is abutment one, the work progress of the single hole beam of constructing or the first hole beam as follows:
The reach of step 101, bridge fabrication machine puts in place: system moves forward described bridge fabrication machine agent structure integral level by described reach, until the lower joist in described bridge fabrication machine agent structure moves between abutment one and described Bridge Pier two; Afterwards, the inner Overhead travelling crane system of installing of described bridge fabrication machine agent structure that puts in place in reach;
Step 102, single hole beam or the first hole beam assembling construction: a plurality of beam sections that adopt described Overhead travelling crane system will form described single hole beam or the first hole beam lift and are transplanted on lower joist successively, afterwards according to conventional bridge subsection assembling and construction method and complete the assembly unit process of a plurality of described beam sections on lower joist, obtain single hole beam or the first hole beam that assembly unit is completed, and the front and back end section of the single hole beam that assembly unit is completed or the first hole beam is supported and fixed on respectively on described Bridge Pier two and abutment one;
When institute's construction bridges is the single hole beam, complete whole work progresss of institute's construction bridges in step 1; When institute's construction bridges is multi-hole beam, enter step 2;
Step 2, next hole beam construction, its work progress is as follows:
Step 201, lower joist split: remove the described connector between left side joist described in lower joist and right side joist, and described left side joist and right side joist are rotated to be vertical state by level, this moment, described left side joist and described left side girder section were positioned on same perpendicular, and right side joist and described right side girder section are positioned on same perpendicular;
The reach of step 202, bridge fabrication machine agent structure is across the hole: system moves forward described bridge fabrication machine agent structure and Overhead travelling crane system integral level mounted thereto by described reach, until the lower joist in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang; The front and back end section of described next Kong Liang is supported in respectively the front axle beam pier and is positioned on the axle casing pier of described front axle beam pier rear side;
When the lower joist in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang, two described middle supporting legs prop up and withstand on described front axle beam pier, and described bridge fabrication machine agent structure is in level, afterwards front leg strut is moved forward along described horizontal sliding track, and front leg strut is propped up withstand on adjacent with described front axle beam pier and be positioned on the Bridge Pier of described front axle beam pier front side, complete the reach of described bridge fabrication machine agent structure across the hole process this moment;
Step 203, next hole beam assembling construction: a plurality of beam sections that adopt Overhead travelling crane system will form described next Kong Liang lift and are transplanted on lower joist successively, afterwards according to conventional bridge subsection assembling and construction method and complete the assembly unit process of a plurality of described beam sections on lower joist, obtain next Kong Liang that assembly unit is completed, and the front and back end section of next Kong Liang that assembly unit is completed is supported and fixed on respectively on described front axle beam pier and axle casing pier;
Step 3, repeating step two repeatedly are until complete whole work progresss of institute's construction bridges.
Above-mentioned construction technology is characterized in that: when by described reach system, described bridge fabrication machine agent structure integral level being moved forward in step 101, it is as follows that it moves forward process:
Step 1011, the assembly unit of bridge fabrication machine overhead structure: on the smooth vacant lot in abutment one dead astern, described upper strata plane frame and middle level plane frame in nose girder section in two described main body splicing structures, afterbody feeding beam cantilever segment, girder section and the described upper portion connecting structure that is connected between two described main body splicing structure tops are carried out assembly unit, and obtain the bridge fabrication machine overhead structure that assembly unit is completed; After the assembly unit of described bridge fabrication machine overhead structure is completed, two described front leg struts are arranged on respectively in two described main body splicing structures the nose girder section lower front that assembly unit is completed, and the bottom of front leg strut is propped up withstand on abutment one, simultaneously the middle leg upper supporting column of two described middle supporting legs is arranged on respectively in two described main body splicing structures the nose girder section rearward end below that assembly unit has been completed, and it is anterior that two described rear support legs are arranged on respectively in two described main body splicing structures afterbody feeding beam cantilever segment;
Step 1012, bridge fabrication machine overhead structure be dilatory moving ahead tentatively: before preliminary dilatory moving ahead, also need adopt tail support device that the afterbody of the overhead structure of bridge fabrication machine described in step 1011 is propped up overhead, simultaneously with the jack-up upwards of the described telescopic legs one in front leg strut described in step 1011, and make described bridge fabrication machine overhead structure be in level; Afterwards, by described reach system with the translation forward of described bridge fabrication machine overhead structure, until till the nose girder section rearward end in described bridge fabrication machine overhead structure is positioned at abutment one top;
Step 1013, middle leg upper supporting column temporary supporting and front leg strut reach: the described telescopic legs one in front leg strut described in step 1012 is shunk downwards, in this moment step 1011 the described middle leg upper supporting column bottom of installation prop up and withstand on abutment one; Afterwards, described front leg strut is moved forward to described Bridge Pier two tops along the set horizontal sliding track in nose girder section bottom, and front leg strut is propped up withstand on described Bridge Pier two;
Step 1014, bridge fabrication machine overhead structure be dilatory moving ahead and the assembly unit of bridge fabrication machine lower body part structure further: first with the jack-up and make described bridge fabrication machine overhead structure be in level upwards of the described telescopic legs one in front leg strut described in step 1013, the middle leg upper supporting column bottom described in this moment step 1013 breaks away from abutment one; Afterwards, system continues translation forward with described bridge fabrication machine overhead structure by described reach, until till the nose girder section rearward end in described bridge fabrication machine overhead structure is positioned at described Bridge Pier two tops;
And system continues described bridge fabrication machine overhead structure in translation process forward by described reach, the described middle leg lower supporting rod of assembly unit and obtain the middle supporting leg that assembly unit is completed below the middle leg upper supporting column described in step 1013, assembling bridge manufacturing machine lower body part structure and obtain the described bridge fabrication machine agent structure that assembly unit is completed on described bridge fabrication machine overhead structure simultaneously; Described bridge fabrication machine lower body part structure comprises the lower floor's plane frame in the girder section and is laid in two lower joists under described main body splicing structure middle girder section;
When the nose girder section rearward end in described bridge fabrication machine overhead structure is positioned at described Bridge Pier two top, described telescopic legs one in front leg strut is shunk downwards, assembly unit this moment is completed middle supporting leg bottom withstands on described Bridge Pier two and described bridge fabrication machine overhead structure is in level, afterwards front leg strut is moved forward along described horizontal sliding track, and front leg strut is propped up withstand on Bridge Pier three, complete assembly unit and the dilatory process that moves ahead of described bridge fabrication machine agent structure this moment, and lower joist is between abutment one and described Bridge Pier two; Described Bridge Pier three is for being positioned at described Bridge Pier two front sides and the Bridge Pier adjacent with described Bridge Pier two.
Above-mentioned construction technology, it is characterized in that: in step 1012, in the tentatively dilatory process neutralization procedure 1014 that moves ahead of bridge fabrication machine overhead structure, the bridge fabrication machine overhead structure is further draws in the process that moves ahead, and described tail support device synchronously moves forward with described bridge fabrication machine overhead structure along the smooth vacant lot in abutment one dead astern; In step 202 bridge fabrication machine agent structure reach is across in the process of hole, and described tail support device is completed the beam section along the construction that is positioned at described axle casing pier dead astern and synchronously moved forward with described bridge fabrication machine overhead structure; In step 1014, when the nose girder section rearward end in described bridge fabrication machine overhead structure was positioned at described Bridge Pier two top, two described rear support legs propped up and withstand on abutment one; In step 202, when the lower joist in described bridge fabrication machine agent structure moved to the construction location place of next Kong Liang, two described rear support legs propped up and withstand on described axle casing pier.
Above-mentioned construction technology is characterized in that: in described bridge fabrication machine agent structure, the described left side joist of lower joist and described right side joist include horizontal tray and are laid in from front to back a plurality of vertical height adjustment parts on described horizontal tray; When carrying out next hole beam assembling construction when carrying out single hole beam or the first hole beam assembling construction in step 102 and in step 203, utilize a plurality of described vertical height adjustment parts that the absolute altitude of a plurality of described beam sections is adjusted.
The present invention compared with prior art has the following advantages:
1, the web-type bridge fabrication machine reasonable in design that adopts, span are large, processing and fabricating and assembly unit is easy for installation and weight capacity is strong.
2, bridge fabrication machine agent structure integrated connection used is reliable, and easy to assembly, and main employing " military eight or seven beams " is that basic rod member is assembled.
3, the assembling and construction method step of bridge fabrication machine agent structure is simple and realize conveniently, actually first the bridge fabrication machine overhead structure is carried out assembly unit when carrying out assembly unit, and after assembly unit completes, carries out the dilatory previous operation of complete machine; In the dilatory process that moves ahead, bridge fabrication machine lower body part structure is carried out assembly unit, and the corresponding Task of Debugging that carries out complete machine, make it reach the normal operation condition of the first hole beam.
4, use is easy and simple to handle, result of use good and the quality of institute's assembling construction bridge is high, be particularly useful for heavy in section, the construction of large-tonnage segment installation under many unfavorable factors such as strong wind and high-altitude, each beam sections is lifted into carries out assembling construction in the bridging ventral, utilize the members such as lower joist, solve the potential safety hazard of personnel and section box girder operation assembly unit under the strong wind weather of high-altitude, be subjected to the also minimizings relatively of objective factor restriction such as weather.
5, efficiency of construction is high, under many unfavorable factors such as strong wind and high-altitude, can complete safety and the high-quality assembling construction process that realizes large sections, heavy in section case beam with the construction speed in 12.5 days/hole.
6, practical value is high, can effectively be applicable to heavy in section, large-tonnage section assembling bridging work progress, due to the construction operation demand that can satisfy many unfavorable factors such as strong wind and high-altitude.high-speed railway two-wire 48m sections simple supported box beam, the heaviest beam sections 150t, belong to large-tonnage box beam, and be at Gobi desert, Xinjiang barren beach, be located in the strong wind arid area, surface relief is larger, the bridge pier height is greater than 50m, build high-speed railway two-wire Box-girder Bridges, from the larger simply supported girder bridge of the more suitable construction span of economy, in the Gobi desert lack of water, strong wind, build bridge under the operating environments such as high and cold and high-altitude, batch production precast concrete segment case beam is conducive to the requirement of concrete quality and environmental protection, filled up the blank of building similar bridge in this area, similar engineering design to high ferro also has very large reference.Actual when carrying out beam precast, near the precasting yard of beam section bridge location is prefabricated, after prefabricated end, the sections of case beam is assembled into bridge on bridge fabrication machine, greatly reduced construction cost.
In sum, bridge fabrication machine reasonable in design of the present invention, processing and fabricating and assembly unit is easy for installation, efficiency of construction is high and it is easy and simple to handle to use, weight capacity is strong, result of use good can be fast, safety and complete in high quality the section assembling work progress of heavy in section bridge under strong wind and high altitude conditions.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the use state reference map that the present invention adopts the web-type bridge fabrication machine.
Fig. 2 is for adopting the mobile status schematic diagram after the present invention carries out integral level the assembly unit of bridge fabrication machine overhead structure is completed when moving forward the bridge fabrication machine agent structure.
Fig. 3 is the mobile status schematic diagram after adopting the present invention to preliminary dilatory the moving ahead of bridge fabrication machine overhead structure.
Fig. 4 is for adopting the present invention to further dilatory the moving ahead and the bridge fabrication machine mobile status schematic diagram of bridge fabrication machine lower body part structure assembly unit after completing of bridge fabrication machine overhead structure.
Fig. 5 is that employing the present invention carries out the feeding beam view in bridge assembling construction process.
Construction technology process block diagram when Fig. 6 carries out assembling construction for employing the present invention to multi-hole beam.
Description of reference numerals:
1-girder section; 2-nose girder section; 3-afterbody feeding beam cantilever segment;
The 4-1-upper chord; The 4-2-lower chord; The 4-3-web member;
Joist under 5-; The 5-1-longeron; The 5-2-crossbeam;
The 6-front leg strut; Supporting leg in 7-; The 8-rear support leg;
The 9-Bridge Pier; The 10-adjusting screw; 11-abutment one;
12-has constructed and has completed the beam section; The 13-box girder segment; 14-bridge pier two;
Trolley before 15-; Trolley after 16-; 17-bridge pier three;
24-fortune beam dolly.
The specific embodiment
Web plate type bridge fabrication machine for constructing bridge under a kind of strong wind as shown in Figure 1 and high altitude conditions, comprise the bridge fabrication machine agent structure, be arranged on described bridge fabrication machine agent structure top and a plurality of beam sections of construction bridges lift respectively with the Overhead travelling crane system of transferring and drag the reach system that described bridge fabrication machine agent structure integral level moves forward to being assemblied to form, and be arranged on respectively from front to back described bridge fabrication machine agent structure lower front, the front leg strut 6 of below, middle part and lower rear, middle supporting leg 7 and rear support leg 8, described reach system is laid on described bridge fabrication machine agent structure.Described bridge fabrication machine agent structure comprises that two left and right are the symmetrical main body splicing structure of laying, the structure of two described main body splicing structures and size are all identical and both all be vertically to laying, connect as one to the upper portion connecting structure of laying by being level between the top of two described main body splicing structures; Described main body splicing structure comprises girder section 1, be laid in the nose girder section 2 of girder section 1 front portion and be laid in the afterbody feeding beam cantilever segment 3 at girder section 1 rear portion, described nose girder section 2 is positioned at the dead ahead of girder section 1, and afterbody feeding beam cantilever segment 3 is positioned at the dead astern of girder section 1.Described girder section 1, nose girder section 2 and afterbody feeding beam cantilever segment 3 all for by upper chord 4-1, lower chord 4-2 and be arranged on upper chord 4-1 and lower chord 4-2 between web member 4-3 be assemblied to form and be vertically to the plane frame of laying.Described girder section 1 for by the upper strata plane frame, be positioned at the middle level plane frame under the plane frame of described upper strata and be positioned at three layers of trussed construction that the lower floor's plane frame under the plane frame of described middle level forms, the vertical height of described upper strata plane frame, middle level plane frame and lower floor's plane frame is all identical.The bottom of described nose girder section 2 is mutually concordant with the bottom of described middle level plane frame, and the bottom of afterbody feeding beam cantilever segment 3 is mutually concordant with the middle part of described middle level plane frame.In the present embodiment, described nose girder section 2 is the two-tier truss structure.
Be provided with under girder section 1 in two described main body splicing structures and be level to the lower joist 5 of laying, girder section 1 in two described main body splicing structures is respectively left side girder section and is positioned at the right side girder section on girder section right side, described left side, the transverse width of described lower joist 5 is identical with spacing between girder section right side, described left side and right side girder section, and lower joist 5 is assembled by left side joist and the right side joist that is positioned at joist right side, described left side, and described left side joist and right side joist are that bilateral symmetry is laid and structure both is all identical with size.Connect by connector between the inside portion of described left side joist and right side joist, and all be connected in hinged way between the bottom of between the bottom of the outside portion of described left side joist and described left side girder section and the outside portion of described right side joist and described right side girder section.
In the present embodiment, described connector is connecting pin, and all is connected by bearing pin between the bottom of between the bottom of the outside portion of described left side joist and described left side girder section and the outside portion of described right side joist and described right side girder section.
In the present embodiment, described left side joist and described right side joist include horizontal tray and are laid in from front to back a plurality of vertical height adjustment parts on described horizontal tray.
When actual processing and fabricating and assembling construction, described horizontal tray is assemblied to form with the crossbeam 5-2 that Duo Gen is parallel laying by the many longeron 5-1 that are parallel laying, and described longeron 5-1 is parallel laying with girder section 1 and it is vertical laying with crossbeam 5-2.
In the present embodiment, the actual laying when installing, a plurality of described vertical height adjustment parts are laid on same straight line, and a plurality of described vertical height adjustment part all is laid on longeron 5-1.
In the present embodiment, described vertical height adjustment part is to be vertical adjusting screw 10 to laying, and dismounting and use operation are all very easy.During practice of construction, also can adopt the vertical height adjustment part of other type.
In the present embodiment, described left side joist and described right side joist are from front to back the assembly type joist that a plurality of planes joist of laying is assemblied to form continuously, and connect by assembly between adjacent two the described plane joists in front and back.
In the present embodiment, the quantity of described front leg strut 6, middle supporting leg 7 and rear support leg 8 is two, two described front leg struts 6 are symmetrical respectively is arranged on two nose girder section 2 lower front in described main body splicing structure, and front leg strut 6 can move forward and backward along nose girder section 2, described nose girder section 2 bottoms are provided with the horizontal sliding track that moves forward and backward for front leg strut 6, and described front leg strut 6 comprises and is vertical telescopic legs one to laying and is arranged on described telescopic legs one top and can takes turns along the slippage that described horizontal sliding track moves forward and backward.Two described middle supporting legs 7 are arranged on two middle leg support columns below nose girder section 2 rearward end in described main body splicing structure for symmetrical respectively, and described middle leg support column comprises middle leg upper supporting column and the middle leg lower supporting rod that is arranged on described middle leg upper supporting column below.Two described rear support legs 8 are the symmetrical back leg support column that is arranged on two afterbody feeding beam cantilever segment 3 front portions in described main body splicing structure respectively.
During actual processing and fabricating, the longitudinal length of described lower joist 5 is less than the longitudinal length of girder section 1.Institute's construction bridges is single hole beam or multi-hole beam, each Kong Liang in institute's construction bridges forms by a plurality of segment installations, described each hole beam supports fixingly by being positioned at bottom, its rear and front end and two adjacent Bridge Pier 9 of front and back respectively, and two described Bridge Pier 9 are respectively the front side Bridge Pier and are positioned at the rear side Bridge Pier of described front side Bridge Pier rear side.a plurality of described beam sections in described each Kong Liang includes the front end beam sections that is positioned at front side, the rear end beam sections of rear side and be laid in from front to back described front end beam sections and described rear end beam sections between a plurality of middle parts beam sections, described lower joist 5 is between two described Bridge Pier 9 and carry out the platform for lining of integral assembling to being supported in a hole beam between two described Bridge Pier 9, spacing between two described Bridge Pier 9 is D and is supported in described front end beam sections between two described Bridge Pier 9 and the longitudinal length of described rear end beam sections is d, the rearward end of the spacing between the leading section of described lower joist 5 and described front side Bridge Pier and lower joist 5 and the spacing between described rear side Bridge Pier are all less than d, the longitudinal length of described girder section 1 and nose girder section 2 is all greater than D, and the longitudinal length of lower joist 5 is less than D.In the present embodiment, described lower joist 5 be positioned at girder section 1 under.
In the present embodiment, during actual assembly unit, described upper chord 4-1, lower chord 4-2 and web member 4-3 are eight or seven military beams.
In the present embodiment, the spacing between two described main body splicing structures is greater than the transverse width of institute's construction bridges.The top absolute altitude of described girder section 1, nose girder section 2 and afterbody feeding beam cantilever segment 3 is all identical.The height of institute's construction bridges is h, and the vertical height of described upper strata plane frame, middle level plane frame and lower floor's plane frame all is not less than h.
During practice of construction, in institute's construction bridges, the longitudinal length of each Kong Liang is L and L=48m ± 5m, the longitudinal length of described girder section 1 is 55m ± 5m, the longitudinal length of described lower joist 5 is 45m ± 5m, the longitudinal length of described afterbody feeding beam cantilever segment 3 is 10m ± 2m, and the longitudinal length of nose girder section 2 is 55m ± 5m.
in the present embodiment, the construction bridges total length 1651.19m of institute, the basis is the basis of digging a well, Bridge Pier 9 is round end type hollow pier and solid pier, the high 46.5m of maximum pier, the superstructure of institute's construction bridges is that 33 hole spans are the prestressed concrete two-wire simple supported box beam of 48m, adopt the construction of section assembling technology, the whole opening box girder deadweight is 1800t approximately, each Kong Liang is by the front end beam sections of 1 single hop length 2.7m, the rear end segment installation of 9 middle part beam sections and 1 single hop length 2.7m forms, 9 described middle part beam sections include the middle part beam sections one of 7 single hop length 4.3m and 2 and are connected between middle part beam sections one and front end beam sections and rear end beam sections and beam sections two in the middle part of the transition section of 2 single hop length 4.0m, that is to say, each Kong Liang forms by 11 segment installations, and 11 described beam sections are box girder segment 13, the top width 12.2m of monolithic box girder segment 13, bottom width 5.5m and its deck-molding 4.6m, the weight 150t of maximum monolithic box girder segment 13, adopt the wet seam of the thick C50 steel concrete of 0.6m to connect between adjacent two the described box girder segments 13 in front and back.This bridge is located in Gobi desert, Xinjiang severe cold area, is subordinate to cigarette Dun Feng district, and the wind zoning is divided into II level wind district, and the construction phase of stopping in winter reaches four months, and progress indicator is 12.5 days/hole.
Thereby, the longitudinal length L=48m of each Kong Liang in institute's construction bridges, the longitudinal length of described lower joist 5 is 45.3m, space D=49.5m between two described Bridge Pier 9, for arbitrary Kong Liang, the spacing between the leading section of described lower joist 5 and described front side Bridge Pier and the rearward end of lower joist 5 and the spacing between described rear side Bridge Pier are 2.1m.
In the present embodiment, the longitudinal length of described bridge fabrication machine agent structure is 120m, and the longitudinal length of described girder section 1 is 55m, and the longitudinal length of afterbody feeding beam cantilever segment 3 is 10m, and the longitudinal length of nose girder section 2 is 55m.
In the present embodiment, as shown in Figure 6, when institute's construction bridges is carried out assembling construction, comprise the following steps:
The first hole beam in step 1, assembling construction single hole beam or assembling construction multi-hole beam: two Bridge Pier 9 that construction single hole beam or the first hole beam are supported are respectively between Bridge Pier one and Bridge Pier two, described Bridge Pier two adjacent with described Bridge Pier one and its be positioned at described Bridge Pier one front side, described Bridge Pier one is abutment 1, the work progress of the single hole beam of constructing or the first hole beam as follows:
The reach of step 101, bridge fabrication machine puts in place: system moves forward described bridge fabrication machine agent structure integral level by described reach, until the lower joist 5 in described bridge fabrication machine agent structure moves between abutment 1 and described Bridge Pier two; Afterwards, the inner Overhead travelling crane system of installing of described bridge fabrication machine agent structure that puts in place in reach.
In the present embodiment, described Bridge Pier two is bridge pier 2 14.Described Overhead travelling crane system comprises front trolley 15 and the rear trolley 16 that is installed on described bridge fabrication machine agent structure inside.
In the present embodiment, when by described reach system, described bridge fabrication machine agent structure integral level being moved forward in step 101, it is as follows that it moves forward process:
step 1011, the assembly unit of bridge fabrication machine overhead structure: on the smooth vacant lot in abutment one 11 dead asterns, described upper strata plane frame and middle level plane frame in nose girder section 2 in two described main body splicing structures, afterbody feeding beam cantilever segment 3, girder section 1 and the described upper portion connecting structure that is connected between two described main body splicing structure tops are carried out assembly unit, and obtain the bridge fabrication machine overhead structure that assembly unit is completed, after the assembly unit of described bridge fabrication machine overhead structure is completed, two described front leg struts 6 are arranged on respectively in two described main body splicing structures nose girder section 2 lower front that assembly unit is completed, and the bottom of front leg strut 6 is propped up withstand on abutment 1, simultaneously the middle leg upper supporting column of two described middle supporting legs 7 is arranged on respectively in two described main body splicing structures nose girder section that assembly unit completed 2 rearward end belows, and two described rear support legs 8 are arranged on respectively afterbody feeding beam cantilever segment 3 front portions in two described main body splicing structures, this moment, the concrete mobile status of bridge fabrication machine overhead structure saw Fig. 2 for details.
In the present embodiment, be on the roadbed of 120m, the bridge fabrication machine overhead structure to be carried out assembly unit in abutment one 11 dead asterns and length.During practice of construction, smooth assembly unit place in the place is grown at abutment one 11 dead astern 120m by elder generation, and the gradient is laid the haul track of bridge fabrication machine by being not more than 8 ‰ controls, the minimum 50m of place transverse width.
Actual when the bridge fabrication machine overhead structure is carried out assembly unit, therefrom the installation place of supporting leg 7 respectively forwards, backwards both sides carry out assembly unit.
Step 1012, bridge fabrication machine overhead structure be dilatory moving ahead tentatively: before preliminary dilatory moving ahead, also need adopt tail support device that the afterbody of the overhead structure of bridge fabrication machine described in step 1011 is propped up overhead, simultaneously with the jack-up upwards of the described telescopic legs one in front leg strut described in step 1,011 6, and make described bridge fabrication machine overhead structure be in level; Afterwards, by described reach system with the translation forward of described bridge fabrication machine overhead structure, until till nose girder section 2 rearward end in described bridge fabrication machine overhead structure are positioned at abutment one 11 tops.
In the present embodiment, the bracing frame that described tail support device comprises walking mechanism and is arranged on described walking mechanism and described bridge fabrication machine overhead structure afterbody is supported.
In the present embodiment, described walking mechanism is running truck.During actual the use, also can adopt the walking mechanism of other type.
After the assembly unit of described bridge fabrication machine overhead structure is completed, open running truck to the rear end of described bridge fabrication machine overhead structure and support the afterbody of jack-up bridge fabrication machine overhead structure, simultaneously in conjunction with front leg strut 6, make the whole support that breaks away from ground of described bridge fabrication machine overhead structure, the preliminary dilatory previous operation of bridge fabrication machine overhead structure is carried out in removing obstacles afterwards.
Step 1013, middle leg upper supporting column temporary supporting and front leg strut reach: the described telescopic legs one in front leg strut described in step 1,012 6 is shunk downwards, in this moment step 1011 the described middle leg upper supporting column bottom of installation prop up and withstand on abutment 1; Afterwards, described front leg strut 6 is moved forward to described Bridge Pier two tops along the set horizontal sliding track in nose girder section 2 bottoms, and 6 of front leg struts are withstood on described Bridge Pier two, this moment, the concrete mobile status of bridge fabrication machine overhead structure saw Fig. 3 for details.
In the present embodiment, the described telescopic legs one in described front leg strut 6 is for being carried out the supporting leg of telescopic drive by hydraulic jack.In the tentatively dilatory process that moves ahead of described bridge fabrication machine overhead structure, nose girder section 2 rearward end in described bridge fabrication machine overhead structure are positioned at abutment one 11 tops, stop when namely, supporting leg 7 arrives abutment one 11 top, middle leg upper supporting column is supported on abutment 1, and anchoring temporarily; Afterwards, shrink the hydraulic jack of front leg strut 6, and by the horizontal sliding track, front leg strut 6 is moved on bridge pier 2 14, and be supported on the pier top pinner of bridge pier 2 14 and carry out anchoring.
Step 1014, bridge fabrication machine overhead structure be dilatory moving ahead and the assembly unit of bridge fabrication machine lower body part structure further: first with the jack-up and make described bridge fabrication machine overhead structure be in level upwards of the described telescopic legs one in front leg strut described in step 1,013 6, the middle leg upper supporting column bottom described in this moment step 1013 breaks away from abutment 1; Afterwards, system continues translation forward with described bridge fabrication machine overhead structure by described reach, until till nose girder section 2 rearward end in described bridge fabrication machine overhead structure are positioned at described Bridge Pier two tops.
And system continues described bridge fabrication machine overhead structure in translation process forward by described reach, the described middle leg lower supporting rod of assembly unit and obtain the middle supporting leg 7 that assembly unit is completed below the middle leg upper supporting column described in step 1013, assembling bridge manufacturing machine lower body part structure and obtain the described bridge fabrication machine agent structure that assembly unit is completed on described bridge fabrication machine overhead structure simultaneously; Described bridge fabrication machine lower body part structure comprises the lower floor's plane frame in girder section 1 and is laid in two lower joists 5 under described main body splicing structure middle girder section 1.
when nose girder section 2 rearward end in described bridge fabrication machine overhead structure are positioned at described Bridge Pier two top, described telescopic legs one in front leg strut 6 is shunk downwards, middle supporting leg 7 bottoms that assembly unit this moment is completed are propped up and are withstood on described Bridge Pier two and described bridge fabrication machine overhead structure is in level, afterwards front leg strut 6 is moved forward along described horizontal sliding track, and 6 of front leg struts are withstood on Bridge Pier three, complete assembly unit and the dilatory process that moves ahead of described bridge fabrication machine agent structure this moment, and lower joist 5 is between abutment 1 and described Bridge Pier two, this moment, the mobile status of bridge fabrication machine agent structure saw Fig. 4 for details.Described Bridge Pier three is for being positioned at described Bridge Pier two front sides and the Bridge Pier 9 adjacent with described Bridge Pier two.
In step 1012, in the tentatively dilatory process neutralization procedure 1014 that moves ahead of bridge fabrication machine overhead structure, the bridge fabrication machine overhead structure is further draws in the process that moves ahead, utilize the smooth vacant lot in abutment one 11 dead asterns, described tail support device synchronously moves forward with described bridge fabrication machine overhead structure.
In the present embodiment, the hydraulic jack of jacking front leg strut 6, after making the supporting surface of leg upper supporting column bottom disengaging abutment 1, described bridge fabrication machine overhead structure continues translation forward 30 meters left and right, and in moving process, leg lower supporting rod and obtain the middle supporting leg 7 that assembly unit is completed in assembly unit, carry out assembly unit to the front portion structure of described lower floor plane frame and lower joist 5 simultaneously below middle leg upper supporting column; Afterwards, described bridge fabrication machine overhead structure continues translation forward again, until nose girder section 2 rearward end in described bridge fabrication machine overhead structure (supporting leg 7 namely) are stopped when being positioned at described Bridge Pier two top, shrink the hydraulic jack of front leg strut 6, middle supporting leg 7 is supported on the pier top pinner of bridge pier 2 14 and anchoring temporarily; Afterwards, shrink the hydraulic jack of front leg strut 6, by the horizontal sliding track, front leg strut 6 is moved to and be positioned at bridge pier 2 14 front sides and bridge pier three 17 tops adjacent with bridge pier 2 14, and be supported on the pier top pinner of bridge pier 3 15 and carry out anchoring.
After translation puts in place, when namely nose girder section 2 rearward end in described bridge fabrication machine overhead structure are positioned at described Bridge Pier two top, the free bearing of rear support leg 8; Afterwards, the rear structure of described lower floor plane frame and lower joist 5 carried out assembly unit.
In the present embodiment, in step 1012, in the tentatively dilatory process neutralization procedure 1014 that moves ahead of bridge fabrication machine overhead structure, the bridge fabrication machine overhead structure is further draws in the process that moves ahead, and described tail support device synchronously moves forward with described bridge fabrication machine overhead structure along the smooth vacant lot in abutment one 11 dead asterns; In step 202 bridge fabrication machine agent structure reach is across in the process of hole, and described tail support device is completed beam section 12 along the construction that is positioned at described axle casing pier dead astern and synchronously moved forward with described bridge fabrication machine overhead structure.
In step 1014, when nose girder section 2 rearward end in described bridge fabrication machine overhead structure were positioned at described Bridge Pier two top, two 8 of described rear support legs withstood on abutment 1; In step 202, when the lower joist 5 in described bridge fabrication machine agent structure moved to the construction location place of next Kong Liang, two 8 of described rear support legs withstood on described axle casing pier.
Step 102, single hole beam or the first hole beam assembling construction: a plurality of beam sections that adopt described Overhead travelling crane system will form described single hole beam or the first hole beam lift successively and are transplanted on lower joist 5, afterwards according to conventional bridge subsection assembling and construction method and complete the assembly unit process of a plurality of described beam sections on lower joist 5, obtain single hole beam or the first hole beam that assembly unit is completed, and the front and back end section of the single hole beam that assembly unit is completed or the first hole beam is supported and fixed on respectively on described Bridge Pier two and abutment 1.
When institute's construction bridges is the single hole beam, complete whole work progresss of institute's construction bridges in step 1; When institute's construction bridges is multi-hole beam, enter step 2.
in the present embodiment, before a plurality of beam sections that adopt described Overhead travelling crane system will form described single hole beam or the first hole beam lift and are transplanted on lower joist 5 successively, need first to adopt fortune beam dolly 24 that a plurality of described beam sections are transported to described bridge fabrication machine agent structure afterbody by beam making field and carry out the feeding beam operation, assembling construction has been completed constructs to complete and is provided with two moving tracks that are parallel laying and move for described fortune beam dolly 24 on beam section 12, and the spacing between two described moving tracks is 4625mm, moving track is undertaken temporary fixed by being reserved in the reinforcing bar of completing on beam section 12 bridge floors of constructing, beam sections of each transportation is box girder segment 13.
In conjunction with Fig. 5, actual when carrying out the feeding beam operation, utilize front trolley 15 and rear trolley 16 and by suspender and suspension rod, box girder segment 13 sling, described fortune beam dolly 24 is return, front trolley 15 and rear trolley 16 are installed along afterbody feeding beam cantilever segment 3 inside moves beam orbit, and box girder segment 13 is winched to corresponding design attitude.
In the present embodiment, according to conventional bridge subsection assembling and construction method and when completing the assembly unit process of a plurality of described beam sections on lower joist 5, by front trolley 15 and rear trolley 16 carry out the lifting of a plurality of described beam sections and (specifically descend joist 5) in the abdomen of bridge fabrication machine agent structure put operation.Described bridge fabrication machine agent structure adopts and the same longitudinal grade of circuit, the absolute altitude adjustment of each described beam sections is adopted the adjusting screw 10 of lower joist 5 and is coordinated the low clearance jack to regulate, when reality is adjusted absolute altitude, first by jack and will be conditioned beam sections according to predefined bearing height and be supported to respective heights, afterwards adjusting screw 10 is adjusted to this bearing height.Thereby, the formwork support platform when described lower joist 5 provides the interior platform for placing of bridging ventral and the cast of wet seam.
In the present embodiment, described horizontal tray is comprised of the platen etc. of walking of longeron 5-1, crossbeam 5-2 and working platform and both sides.To be connected by four bearing pins in the middle of per pass subiculum crossbeam, the two ends of crossbeam 5-2 by bearing pin be connected that the connection otic placode of lower chord 4-2 connects in lower floor's plane frame.Be connected by bolt between described longeron 5-1 and crossbeam 5-2, be provided with adjusting screw 10 on longeron 5-1.
Step 2, next hole beam construction, its work progress is as follows:
Step 201, lower joist split: remove the described connector between left side joist described in lower joist 5 and right side joist, and described left side joist and right side joist are rotated to be vertical state by level, this moment, described left side joist and described left side girder section were positioned on same perpendicular, and right side joist and described right side girder section are positioned on same perpendicular.
The reach of step 202, bridge fabrication machine agent structure is across the hole: system moves forward described bridge fabrication machine agent structure and Overhead travelling crane system integral level mounted thereto by described reach, until the lower joist 5 in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang; The front and back end section of described next Kong Liang is supported in respectively the front axle beam pier and is positioned on the axle casing pier of described front axle beam pier rear side.
When the lower joist 5 in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang, two 7 of described middle supporting legs withstand on described front axle beam pier, and described bridge fabrication machine agent structure is in level, afterwards front leg strut 6 is moved forward along described horizontal sliding track, and withstand on 6 of front leg struts adjacent with described front axle beam pier and be positioned on the Bridge Pier 9 of described front axle beam pier front side, complete the reach of described bridge fabrication machine agent structure across the hole process this moment.
In the present embodiment, described reach system is dilatory trailer system, and described dilatory trailer system comprises the hoist engine that is fixed on described bridge fabrication machine agent structure, is fixed on to construct and completes the earth anchor on beam section 12, the assembly pulley that is connected in the drag rope between described hoist engine and earth anchor and is comprised of movable pulley and quiet pulley.Described movable pulley is fixed on described bridge fabrication machine agent structure rear portion, and quiet pulley is fixed on to construct completes the front end of beam section 12.
In the present embodiment, move forward across before the hole, first carry out the front preparation of via hole, specifically comprise: the wet joint template on lower joist 5 and other instrument etc. have all fixed, and (be about to described left side joist and the right side joist rotates to be vertical state by level) time falls in case 5 upsets of lower joist; Walking carriage is opened to bridge fabrication machine agent structure afterbody, and installed in the walking carriage back rail meter that slips after preventing walking carriage; Utilize the jack jacking to be laid in the haul crossbeam at described bridge fabrication machine agent structure rear portion, with bridge fabrication machine afterbody jack-up and be connected and fixed, fall slightly jack by bracket after rise, the haul crossbeam is fallen on the balance arm of walking carriage, is connected and fixed; Drag rope and assembly pulley etc. is in place, and the traction anchoring embedded bar of the fixed pulley of front end and the end of having set a roof beam in place (being described earth anchor) is connected and fixed.
Move forward across before the hole, across the position that rear rear support leg 8 should arrive that puts in place, hole, calculate the final in-position of the place ahead wheel of walking carriage according to reach, rail meter is installed herein, guarantee that the accurate traveling of bridging function is to design attitude.Simultaneously, check whether the anchoring status of front leg strut 6 is intact, and whether tugboat system is normal.In the present embodiment, described left side joist and described right side joist are from front to back the assembly type joist that the three dimensions joist laid is assemblied to form continuously, and the three dimensions joist is respectively plane joist one, plane joist two and plane joist three from front to back.Reach is first removed between described left side joist and described right side joist midplane joist one and the assembly between plane joist two across before the hole, makes plane joist one and plane joist two be freely vertically state.
Reach is across in the process of hole, and the anchor connection at supporting leg 7 places in first removing utilizes front leg strut 6 jacking bridge fabrication machine agent structure leading sections afterwards until middle supporting leg 7 leaves the pier top pinner of institute's supporting bridge pier 9 gets final product; Start afterwards dilatory trailer system, described bridge fabrication machine agent structure begins via hole.by after needing bridge beam pier 9, suspend via hole until plane joist one, by assembly, plane joist one is reverted to the normally closed state, afterwards, open plane joist three and be freely vertically state, subsequently, continue via hole and move ahead, before central supporting leg 7 arrives during pinner top, square pier top, middle supporting leg 7 is supported on pinner and temporary fixed, and to sliding rail, front leg strut 6 is moved to by level that front square pier top pinner assigned address supports and anchoring is fixed, then, front leg strut 6 jackings cause middle supporting leg 7 disengaging pinner end faces can continue slightly via hole and move ahead, until the lower joist 5 in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang, when middle supporting leg 7 arrives (or rear support leg 8 arrives) specified design position, shrink the hydraulic jack of front leg strut 6, make supporting leg 7 be supported on the pinner of pier top and anchoring is fixed, simultaneously rear support leg 8 dropped on the beam face of completing beam section 12 of constructing and support fixing, and by assembly, plane joist two and plane joist three are all reverted to the normally closed state, bridge fabrication machine agent structure via hole is complete.
Step 203, next hole beam assembling construction: a plurality of beam sections that adopt Overhead travelling crane system will form described next Kong Liang lift successively and are transplanted on lower joist 5, afterwards according to conventional bridge subsection assembling and construction method and complete the assembly unit process of a plurality of described beam sections on lower joist 5, obtain next Kong Liang that assembly unit is completed, and the front and back end section of next Kong Liang that assembly unit is completed is supported and fixed on respectively on described front axle beam pier and axle casing pier.
Step 3, repeating step two repeatedly are until complete whole work progresss of institute's construction bridges.
In the present embodiment, described left side joist and described right side joist include horizontal tray and are laid in from front to back a plurality of vertical height adjustment parts on described horizontal tray; When carrying out next hole beam assembling construction when carrying out single hole beam or the first hole beam assembling construction in step 102 and in step 203, utilize a plurality of described vertical height adjustment parts that the absolute altitude of a plurality of described beam sections is adjusted.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.

Claims (8)

1. Web plate type bridge fabrication machine for constructing bridge under a strong wind and high altitude conditions, comprise the bridge fabrication machine agent structure, be arranged on described bridge fabrication machine agent structure top and a plurality of beam sections of construction bridges lift respectively with the Overhead travelling crane system of transferring and drag the reach system that described bridge fabrication machine agent structure integral level moves forward to being assemblied to form, and be arranged on respectively from front to back described bridge fabrication machine agent structure lower front, the front leg strut (6) of below, middle part and lower rear, middle supporting leg (7) and rear support leg (8), described reach system is laid on described bridge fabrication machine agent structure, it is characterized in that: described bridge fabrication machine agent structure comprises that two left and right are the symmetrical main body splicing structure of laying, the structure of two described main body splicing structures and size are all identical and both all be vertically to laying, connect as one to the upper portion connecting structure of laying by being level between the top of two described main body splicing structures, described main body splicing structure comprises girder section (1), be laid in the anterior nose girder section (2) of girder section (1) and be laid in the afterbody feeding beam cantilever segment (3) at girder section (1) rear portion, described nose girder section (2) is positioned at the dead ahead of girder section (1), and afterbody feeding beam cantilever segment (3) is positioned at the dead astern of girder section (1), described girder section (1), nose girder section (2) and afterbody feeding beam cantilever segment (3) all for by upper chord (4-1), lower chord (4-2) and be arranged on upper chord (4-1) and lower chord (4-2) between web member (4-3) be assemblied to form and be vertically to the plane frame of laying, described girder section (1) for by the upper strata plane frame, be positioned at the middle level plane frame under the plane frame of described upper strata and be positioned at three layers of trussed construction that the lower floor's plane frame under the plane frame of described middle level forms, the vertical height of described upper strata plane frame, middle level plane frame and lower floor's plane frame is all identical, the bottom of described nose girder section (2) is mutually concordant with the bottom of described middle level plane frame, and the bottom of afterbody feeding beam cantilever segment (3) is mutually concordant with the middle part of described middle level plane frame,
be provided with under girder section (1) in two described main body splicing structures and be level to the lower joist (5) of laying, girder section (1) in two described main body splicing structures is respectively left side girder section and is positioned at the right side girder section on girder section right side, described left side, the transverse width of described lower joist (5) is identical with spacing between girder section right side, described left side and right side girder section, and lower joist (5) is assembled by left side joist and the right side joist that is positioned at joist right side, described left side, described left side joist and right side joist are that bilateral symmetry is laid and structure both is all identical with size, connect by connector between the inside portion of described left side joist and right side joist, and all be connected in hinged way between the bottom of between the bottom of the outside portion of described left side joist and described left side girder section and the outside portion of described right side joist and described right side girder section,
Described left side joist and described right side joist include horizontal tray and are laid in from front to back a plurality of vertical height adjustment parts on described horizontal tray;
described front leg strut (6), the quantity of middle supporting leg (7) and rear support leg (8) is two, two described front leg struts (6) symmetry respectively are arranged on two nose girder section (2) lower front in described main body splicing structure, and front leg strut (6) can move forward and backward along nose girder section (2), described nose girder section (2) bottom is provided with the horizontal sliding track that moves forward and backward for front leg strut (6), described front leg strut (6) comprises and is vertical telescopic legs one to laying and is arranged on described telescopic legs one top and can takes turns along the slippage that described horizontal sliding track moves forward and backward, two described middle supporting legs (7) are arranged on two middle leg support columns below nose girder section (2) rearward end in described main body splicing structure for symmetrical respectively, and described middle leg support column comprises middle leg upper supporting column and the middle leg lower supporting rod that is arranged on described middle leg upper supporting column below, two described rear support legs (8) are that symmetry is arranged on two back leg support columns that the afterbody feeding beam cantilever segment (3) in described main body splicing structure is anterior respectively.
2. according to Web plate type bridge fabrication machine for constructing bridge under strong wind claimed in claim 1 and high altitude conditions, it is characterized in that: described left side joist and described right side joist are from front to back the assembly type joist that a plurality of planes joist of laying is assemblied to form continuously, and connect by assembly between adjacent two the described plane joists in front and back.
3. according to Web plate type bridge fabrication machine for constructing bridge under strong wind claimed in claim 1 and high altitude conditions, it is characterized in that: the longitudinal length of described lower joist (5) is less than the longitudinal length of girder section (1), institute's construction bridges is single hole beam or multi-hole beam, each Kong Liang in institute's construction bridges forms by a plurality of segment installations, described each hole beam supports fixingly by being positioned at bottom, its rear and front end and adjacent two Bridge Pier (9) in front and back respectively, and two described Bridge Pier (9) are respectively the front side Bridge Pier and are positioned at the rear side Bridge Pier of described front side Bridge Pier rear side, a plurality of described beam sections in described each Kong Liang includes the front end beam sections that is positioned at front side, the rear end beam sections of rear side and be laid in from front to back described front end beam sections and described rear end beam sections between a plurality of middle parts beam sections, described lower joist (5) is for being positioned between two described Bridge Pier (9) and carrying out being supported in a hole beam between two described Bridge Pier (9) platform for lining of integral assembling, spacing between two described Bridge Pier (9) is D and is supported in described front end beam sections between two described Bridge Pier (9) and the longitudinal length of described rear end beam sections is d, the rearward end of the spacing between the leading section of described lower joist (5) and described front side Bridge Pier and lower joist (5) and the spacing between described rear side Bridge Pier are all less than d, the longitudinal length of described girder section (1) and nose girder section (2) is all greater than D, and the longitudinal length of lower joist (5) is less than D.
4. according to Web plate type bridge fabrication machine for constructing bridge under strong wind claimed in claim 3 and high altitude conditions, it is characterized in that: the height of institute's construction bridges is h, and the vertical height of described upper strata plane frame, middle level plane frame and lower floor's plane frame all is not less than h; In institute's construction bridges, the longitudinal length of each Kong Liang is L and L=48m ± 5m, the longitudinal length of described girder section (1) is 55m ± 5m, the longitudinal length of described lower joist (5) is 45m ± 5m, the longitudinal length of described afterbody feeding beam cantilever segment (3) is 10m ± 2m, and the longitudinal length of nose girder section (2) is 55m ± 5m.
5. construction technology of utilizing bridge fabrication machine as claimed in claim 3 to carry out the bridge assembly unit, institute's construction bridges is single hole beam or multi-hole beam, and each Kong Liang in institute's construction bridges forms by a plurality of segment installations, described each hole beam supports respectively fixing by two Bridge Pier (9) that are positioned at bottom, its rear and front end, it is characterized in that this technique comprises the following steps:
The first hole beam in step 1, assembling construction single hole beam or assembling construction multi-hole beam: two Bridge Pier (9) that construction single hole beam or the first hole beam are supported are respectively between Bridge Pier one and Bridge Pier two, described Bridge Pier two adjacent with described Bridge Pier one and its be positioned at described Bridge Pier one front side, described Bridge Pier one is abutment one (11), the work progress of the single hole beam of constructing or the first hole beam as follows:
The reach of step 101, bridge fabrication machine puts in place: system moves forward described bridge fabrication machine agent structure integral level by described reach, until the lower joist (5) in described bridge fabrication machine agent structure moves between abutment one (11) and described Bridge Pier two; Afterwards, the inner Overhead travelling crane system of installing of described bridge fabrication machine agent structure that puts in place in reach;
Step 102, single hole beam or the first hole beam assembling construction: a plurality of beam sections that adopt described Overhead travelling crane system will form described single hole beam or the first hole beam lift successively and are transplanted on lower joist (5), afterwards according to conventional bridge subsection assembling and construction method and complete the assembly unit process of a plurality of described beam sections on lower joist (5), obtain single hole beam or the first hole beam that assembly unit is completed, and the front and back end section of the single hole beam that assembly unit is completed or the first hole beam is supported and fixed on respectively on described Bridge Pier two and abutment one (11);
When institute's construction bridges is the single hole beam, complete whole work progresss of institute's construction bridges in step 1; When institute's construction bridges is multi-hole beam, enter step 2;
Step 2, next hole beam construction, its work progress is as follows:
Step 201, lower joist split: remove the described connector between left side joist described in lower joist (5) and right side joist, and described left side joist and right side joist are rotated to be vertical state by level, this moment, described left side joist and described left side girder section were positioned on same perpendicular, and right side joist and described right side girder section are positioned on same perpendicular;
The reach of step 202, bridge fabrication machine agent structure is across the hole: system moves forward described bridge fabrication machine agent structure and Overhead travelling crane system integral level mounted thereto by described reach, until the lower joist (5) in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang; The front and back end section of described next Kong Liang is supported in respectively the front axle beam pier and is positioned on the axle casing pier of described front axle beam pier rear side;
When the lower joist (5) in described bridge fabrication machine agent structure moves to the construction location place of next Kong Liang, two described middle supporting legs (7) prop up and withstand on described front axle beam pier, and described bridge fabrication machine agent structure is in level, afterwards front leg strut (6) is moved forward along described horizontal sliding track, and front leg strut (6) is withstood on adjacent with described front axle beam pier and is positioned on the Bridge Pier (9) of described front axle beam pier front side, complete the reach of described bridge fabrication machine agent structure across the hole process this moment;
Step 203, next hole beam assembling construction: a plurality of beam sections that adopt Overhead travelling crane system will form described next Kong Liang lift successively and are transplanted on lower joist (5), afterwards according to conventional bridge subsection assembling and construction method and complete the assembly unit process of a plurality of described beam sections on lower joist (5), obtain next Kong Liang that assembly unit is completed, and the front and back end section of next Kong Liang that assembly unit is completed is supported and fixed on respectively on described front axle beam pier and axle casing pier;
Step 3, repeating step two repeatedly are until complete whole work progresss of institute's construction bridges.
6. according to construction technology claimed in claim 5, it is characterized in that: when by described reach system, described bridge fabrication machine agent structure integral level being moved forward in step 101, it is as follows that it moves forward process:
Step 1011, the assembly unit of bridge fabrication machine overhead structure: on the smooth vacant lot in abutment one (11) dead astern, described upper strata plane frame and middle level plane frame in nose girder section (2) in two described main body splicing structures, afterbody feeding beam cantilever segment (3), girder section (1) and the described upper portion connecting structure that is connected between two described main body splicing structure tops are carried out assembly unit, and obtain the bridge fabrication machine overhead structure that assembly unit is completed; After the assembly unit of described bridge fabrication machine overhead structure is completed, two described front leg struts (6) are arranged on respectively in two described main body splicing structures nose girder section (2) lower front that assembly unit is completed, and the bottom of front leg strut (6) is propped up withstand on abutment one (11), simultaneously the middle leg upper supporting column of two described middle supporting legs (7) is arranged on respectively in two described main body splicing structures nose girder section (2) the rearward end below that assembly unit has been completed, and two described rear support legs (8) are arranged on respectively afterbody feeding beam cantilever segment (3) front portion in two described main body splicing structures;
Step 1012, bridge fabrication machine overhead structure be dilatory moving ahead tentatively: before preliminary dilatory moving ahead, also need adopt tail support device that the afterbody of the overhead structure of bridge fabrication machine described in step 1011 is propped up overhead, simultaneously with the jack-up upwards of the described telescopic legs one in front leg strut described in step 1011 (6), and make described bridge fabrication machine overhead structure be in level; Afterwards, by described reach system with the translation forward of described bridge fabrication machine overhead structure, until till nose girder section (2) rearward end in described bridge fabrication machine overhead structure is positioned at abutment one (11) top;
Step 1013, middle leg upper supporting column temporary supporting and front leg strut reach: the described telescopic legs one in front leg strut described in step 1012 (6) is shunk downwards, in this moment step 1011 the described middle leg upper supporting column bottom of installation prop up and withstand on abutment one (11); Afterwards, described front leg strut (6) is moved forward to described Bridge Pier two tops along the set horizontal sliding track in nose girder section (2) bottom, and front leg strut (6) is withstood on described Bridge Pier two;
Step 1014, bridge fabrication machine overhead structure be dilatory moving ahead and the assembly unit of bridge fabrication machine lower body part structure further: first with the jack-up and make described bridge fabrication machine overhead structure be in level upwards of the described telescopic legs one in front leg strut described in step 1013 (6), the middle leg upper supporting column bottom described in this moment step 1013 breaks away from abutment one (11); Afterwards, system continues translation forward with described bridge fabrication machine overhead structure by described reach, until till nose girder section (2) rearward end in described bridge fabrication machine overhead structure is positioned at described Bridge Pier two tops;
And system continues described bridge fabrication machine overhead structure in translation process forward by described reach, the described middle leg lower supporting rod of assembly unit and obtain the middle supporting leg (7) that assembly unit is completed below the middle leg upper supporting column described in step 1013, assembling bridge manufacturing machine lower body part structure and obtain the described bridge fabrication machine agent structure that assembly unit is completed on described bridge fabrication machine overhead structure simultaneously; Described bridge fabrication machine lower body part structure comprises the lower floor's plane frame in girder section (1) and is laid in lower joist (5) under two described main body splicing structure middle girder sections (1);
when nose girder section (2) rearward end in described bridge fabrication machine overhead structure is positioned at described Bridge Pier two top, described telescopic legs one in front leg strut (6) is shunk downwards, middle supporting leg (7) bottom that assembly unit this moment is completed withstands on described Bridge Pier two and described bridge fabrication machine overhead structure is in level, afterwards front leg strut (6) is moved forward along described horizontal sliding track, and front leg strut (6) is withstood on Bridge Pier three, complete assembly unit and the dilatory process that moves ahead of described bridge fabrication machine agent structure this moment, and lower joist (5) is positioned between abutment one (11) and described Bridge Pier two, described Bridge Pier three is for being positioned at described Bridge Pier two front sides and the Bridge Pier (9) adjacent with described Bridge Pier two.
7. according to construction technology claimed in claim 6, it is characterized in that: in step 1012, in the tentatively dilatory process neutralization procedure 1014 that moves ahead of bridge fabrication machine overhead structure, the bridge fabrication machine overhead structure is further draws in the process that moves ahead, and described tail support device synchronously moves forward with described bridge fabrication machine overhead structure along the smooth vacant lot in abutment one (11) dead astern; In step 202 bridge fabrication machine agent structure reach is across in the process of hole, and described tail support device is completed beam section (12) along the construction that is positioned at described axle casing pier dead astern and synchronously moved forward with described bridge fabrication machine overhead structure; In step 1014, when nose girder section (2) rearward end in described bridge fabrication machine overhead structure was positioned at described Bridge Pier two top, two described rear support legs (8) propped up and withstand on abutment one (11); In step 202, when the lower joist (5) in described bridge fabrication machine agent structure moved to the construction location place of next Kong Liang, two described rear support legs (8) withstood on described axle casing pier.
8. according to the described construction technology of claim 5 or 6, it is characterized in that: in described bridge fabrication machine agent structure, the described left side joist of lower joist (5) and described right side joist include horizontal tray and are laid in from front to back a plurality of vertical height adjustment parts on described horizontal tray; When carrying out next hole beam assembling construction when carrying out single hole beam or the first hole beam assembling construction in step 102 and in step 203, utilize a plurality of described vertical height adjustment parts that the absolute altitude of a plurality of described beam sections is adjusted.
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Publication number Priority date Publication date Assignee Title
CN104120654B (en) * 2014-07-04 2016-05-18 广东省基础工程集团有限公司 Prefabricated subsection beam bridge formation machine and segment installation method
CN104179123A (en) * 2014-08-26 2014-12-03 中国铁建大桥工程局集团有限公司 Bridge fabrication machine capable of building and assembling two bridge segments
RU2737771C1 (en) * 2020-06-29 2020-12-02 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный автомобильно-дорожный университет (СибАДИ)" Method for erection of continuous steel-reinforced concrete superstructure of bridge with monolithic reinforced concrete slab

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1103689A (en) * 1994-02-25 1995-06-14 铁道建筑研究设计院 Bridge span erecting machine composed with emergency beams
CN101787678A (en) * 2010-02-08 2010-07-28 中铁一局集团有限公司 Large-span section assembling bridge manufacturing machine and assembling construction process thereof
CN101831876A (en) * 2010-04-15 2010-09-15 中铁大桥局集团第五工程有限公司 Movable bridge fabrication machine and bridging method thereof
CN202482776U (en) * 2012-03-11 2012-10-10 中铁二十局集团第二工程有限公司 Web type bridge fabrication machine for bridge constructions under conditions of heavy winds and high altitudes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3114967B2 (en) * 1997-11-13 2000-12-04 株式会社サクラダ Box girder assembling method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1103689A (en) * 1994-02-25 1995-06-14 铁道建筑研究设计院 Bridge span erecting machine composed with emergency beams
CN101787678A (en) * 2010-02-08 2010-07-28 中铁一局集团有限公司 Large-span section assembling bridge manufacturing machine and assembling construction process thereof
CN101831876A (en) * 2010-04-15 2010-09-15 中铁大桥局集团第五工程有限公司 Movable bridge fabrication machine and bridging method thereof
CN202482776U (en) * 2012-03-11 2012-10-10 中铁二十局集团第二工程有限公司 Web type bridge fabrication machine for bridge constructions under conditions of heavy winds and high altitudes

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