CN103266569B - A kind of pre-assembly method of steel bridge - Google Patents
A kind of pre-assembly method of steel bridge Download PDFInfo
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- CN103266569B CN103266569B CN201310199810.XA CN201310199810A CN103266569B CN 103266569 B CN103266569 B CN 103266569B CN 201310199810 A CN201310199810 A CN 201310199810A CN 103266569 B CN103266569 B CN 103266569B
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- floor beam
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- arch rib
- beam box
- bridge
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Abstract
The present invention relates to steel structure bridge manufacturing technology field, disclose a kind of pre-assembly method of steel bridge: be some parts each component clustering of beam-arch composition steel bridge, each several part independently lifts pre-splicing; Comprise: the pre-assembly method of S1. arch rib, montant and bridge floor beam box-structure; S2. the pre-assembly method of bridge floor beam; S3. the pre-assembly method of arch rib and crossbeam.This method achieves the succinct assembled in advance of steel structure bridge, and steel structure assembly is divided into three parts independent assembled in advance, each part can realize the assembled in advance of associated component, thus determines the accurate location of bolt hole; Assembled relative to traditional entirety solid, present approach reduces the overall preframed amount of labour of steel structure bridge and reduce dependence to large lifting equipment simultaneously, shorten the assembled cycle, improve operating efficiency.
Description
Technical field
The present invention relates to steel structure bridge manufacturing technology field, disclose a kind of pre-assembly method of steel bridge.
Background technology
At present, part steel bridge adopts beam-arch composition form, adopts box-shaped montant to connect, adopt box-shaped beam to connect between arch rib between camber, and connected mode is high-strength bolt and connects.Due in the fabrication process, various piece separately manufactures, and when building site is assembled, because bolt connects, very high to required precision, it is pre-assembled essential therefore to carry out after finalization of the manufacture.
Because beam-arch composition bridge sectional dimension is large, various piece weight is large, three-dimensional assembled very high to crane gear requirement, adds equipment cost; Three-dimensional assembled workload is large, and the cycle is long.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of pre-assembly method of beam-arch composition steel bridge, and the amount of labour and the equipment cost that can reduce pre-assembled operation promote operating efficiency simultaneously.
For solving the problems of the technologies described above, the invention provides a kind of pre-assembly method of steel bridge: be some parts each component clustering of beam-arch composition steel bridge, the dismounting of each several part independence is pre-splicing; Comprise: the pre-assembly method of S1. arch rib, montant and bridge floor beam box-structure; S2. the pre-assembly method of bridge floor beam; S3. the pre-assembly method of arch rib and crossbeam; Comprise the following steps:
S1. the pre-assembly method of arch rib, montant and bridge floor beam box-structure;
S1.1 draws the port locations terrestrial reference of the first arch rib 1, second arch rib 2, first bridge floor beam box-structure 3, second bridge floor beam box-structure 4, first montant 5 and the second montant 6;
S1.2 makes the first pre-splicing moulding bed, formwork leveling above described first pre-splicing moulding bed;
Described first arch rib 1 is hung on described first pre-splicing moulding bed with described first bridge floor beam box-structure 3 by S1.3; During location, involutory corresponding port locations terrestrial reference;
S1.4 lifts described first pre-splicing moulding bed location on described first montant 5; Mate the port between described first montant 5 and described first arch rib 1 and described first bridge floor beam box-structure 3;
S1.5 joins the bolt hole boring described first montant 5 two ends;
S1.6. lift described second arch rib 2, described second bridge floor beam box-structure 4 and the second montant 6 according to step S1.3 ~ S1.5 and join the bolt hole boring described second montant 6 two ends;
S2. the pre-assembly method of bridge floor beam;
S2.1 draws the middle girder 7, first of bridge floor beam and chooses the located lateral terrestrial reference that arm 8, second chooses arm 9, described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4;
S2.2 makes the second pre-splicing moulding bed;
S2.3 lifts the second pre-splicing moulding bed location on described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4; During location, described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4 its located lateral terrestrial reference involutory also rigidly fix with the second pre-splicing moulding bed;
S2.4 lifts girder 7, first in the middle of described bridge floor beam and chooses arm 8 and second and choose the second pre-splicing moulding bed location on arm 9;
S2.5 is fixed on girder 7 in the middle of described bridge floor beam between described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4; Choosing arm 8 by described first is fixed on described first bridge floor beam box-structure 3; Choosing arm 9 by described second is fixed on described second bridge floor beam box-structure 4;
S2.6 measures the distance L between described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4;
S3. the preassembling method of arch rib and crossbeam;
S3.1 is with in described step S2.6, and after bridge floor beam is assembled in advance, the distance L between described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4 is foundation, the surplus of the described crossbeam 10 of line cutting;
S3.2 draws the port locations terrestrial reference of crossbeam 10 and the located lateral terrestrial reference of described first arch rib 1 and the second arch rib 2;
S3.3 makes the 3rd pre-splicing moulding bed;
Described first arch rib 1 and the second arch rib 2 are lifted upper 3rd pre-splicing moulding bed location by S3.4; During location, described first arch rib 1 and the second arch rib 2 its located lateral terrestrial reference involutory;
S3.5 mates the port locations terrestrial reference of described crossbeam 10, described 3rd pre-splicing moulding bed location on lifting cross beam 10;
S3.6 joins the bolt hole boring described crossbeam 10 two ends.
Further, in described step S1.2, above described first pre-splicing moulding bed during formwork leveling, described form height error≤1mm.
Further, in described step S1.1, S2.1, S3.2, the instrument drawing port locations terrestrial reference and the employing of located lateral terrestrial reference is total powerstation.
Further, the coordinate of each location terrestrial reference described and described first pre-splicing moulding bed, the second pre-splicing moulding bed and the 3rd pre-splicing moulding bed uses the same coordinate system when drawing.
The pre-assembly method of beam-arch composition steel bridge provided by the invention achieves the succinct assembled in advance of steel structure bridge, steel structure assembly is divided into three parts independent assembled in advance, the coupling that each part can realize between associated component is assembled, thus determines the accurate location of bolt hole; Reduce the overall preframed amount of labour of steel structure bridge and reduce dependence to large lifting equipment simultaneously, shorten the assembled cycle, improve operating efficiency.
Accompanying drawing explanation
The beam-arch composition steel bridge theory structure schematic diagram that Fig. 1 provides for the embodiment of the present invention;
Wherein, 1-first arch rib, 2-second arch rib, 3-first bridge floor beam box-structure, 4-second bridge floor beam box-structure, 5-first montant, 6-second montant, girder in the middle of 7-bridge floor beam, 8-first chooses arm, and 9-second chooses arm, 10-crossbeam.
Detailed description of the invention
See Fig. 1, the pre-assembly method of a kind of beam-arch composition steel bridge that the embodiment of the present invention provides: be some parts each component clustering of beam-arch composition steel bridge, the dismounting of each several part independence is pre-splicing; Comprise: the pre-assembly method of S1. arch rib, montant and bridge floor beam box-structure; S2. the pre-assembly method of bridge floor beam; S3. the pre-assembly method of arch rib and crossbeam; Comprise the following steps:
S1. the pre-assembly method of arch rib, montant and bridge floor beam box-structure;
S1.1 draws the port locations terrestrial reference of the first arch rib 1, second arch rib 2, first bridge floor beam box-structure 3, second bridge floor beam box-structure 4, first montant 5 and the second montant 6;
S1.2 makes the first pre-splicing moulding bed, formwork leveling above the first pre-splicing moulding bed;
First arch rib 1 and the first bridge floor beam box-structure 3 are hung on the first pre-splicing moulding bed by S1.3; During location, involutory corresponding port locations terrestrial reference;
S1.4 lifts the first pre-splicing moulding bed location on the first montant 5; Mate the port between the first montant 5 and the first arch rib 1 and the first bridge floor beam box-structure 3;
S1.5 joins the bolt hole at brill first montant 5 two ends;
S1.6. lift the second arch rib 2, second bridge floor beam box-structure 4 and the second montant 6 according to step S1.3 ~ S1.5 and join the bolt hole at brill second montant 6 two ends;
S2. the pre-assembly method of bridge floor beam;
S2.1 draws the middle girder 7, first of bridge floor beam and chooses the located lateral terrestrial reference that arm 8, second chooses arm 9, first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4;
S2.2 makes the second pre-splicing moulding bed;
S2.3 lifts the second pre-splicing moulding bed location on the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4; During location, the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4 its located lateral terrestrial reference involutory also rigidly fix with the second pre-splicing moulding bed;
In the middle of S2.4 lifting bridge floor beam, girder 7, first is chosen arm 8 and second and is chosen the second pre-splicing moulding bed location on arm 9;
S2.5 is fixed on girder 7 in the middle of bridge floor beam between the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4; Choosing arm 8 by first is fixed on the first bridge floor beam box-structure 3; Choosing arm 9 by second is fixed on the second bridge floor beam box-structure 4;
S2.6 measures the distance L between the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4;
S3. the preassembling method of arch rib and crossbeam;
S3.1 is with in step S2.6, and after bridge floor beam is assembled in advance, the distance L between described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4 is foundation, the surplus of line cutting crossbeam 10;
S3.2 draws the port locations terrestrial reference of crossbeam 10 and the located lateral terrestrial reference of described first arch rib 1 and the second arch rib 2;
S3.3 makes the 3rd pre-splicing moulding bed;
First arch rib 1 and the second arch rib 2 are lifted upper 3rd pre-splicing moulding bed location by S3.4; During location, the first arch rib 1 and the second arch rib 2 its located lateral terrestrial reference involutory;
S3.5 mates the port locations terrestrial reference of crossbeam 10, the 3rd pre-splicing moulding bed location on lifting cross beam 10;
S3.6 joins the bolt hole boring crossbeam 10 two ends.
The assembled in advance of beam-arch composition steel bridge is divided into three parts by this method, and each part is independently assembled in advance; When execute certain part assembled in advance after, each assembly is dismantled, waits for the assembled in advance of other parts.
Perform S1: arch rib, montant and bridge floor beam box-structure assembled in advance; Before lifting is pre-splicing, perform step S1.1: the port locations terrestrial reference drawing the first arch rib 1, second arch rib 2, first bridge floor beam box-structure 3, second bridge floor beam box-structure 4, first montant 5 and the second montant 6; Draw out the first arch rib 1, second arch rib 2, first bridge floor beam box-structure 3 on the ground, second bridge floor beam box-structure 4, the port locations terrestrial reference of the first montant 5 and the second montant 6, said modules can being made accurately to be located each port by vertical collimation method when lifting fixing, not occurring deviation.
Perform step S1.2: make the first pre-splicing moulding bed; First pre-splicing moulding bed is used for supporting and fixing the first arch rib 1, second arch rib 2, first bridge floor beam box-structure 3, second bridge floor beam box-structure 4, first montant 5 and the second montant 6.The location of each assembly and assembled fixing can be completed smoothly.
In order to make the position with assembly on the first pre-splicing moulding bed and state all accurate, preferably, above moulding bed during formwork leveling, the height error≤1mm of template.
Perform step S1.3: the first arch rib 1 and the first bridge floor beam box-structure 3 are hung on the first pre-splicing moulding bed; During location, involutory corresponding port locations terrestrial reference.Lift the first arch rib 1 and the first bridge floor beam box-structure 3, on the first pre-splicing moulding bed, carry out assembled in advance, according to the port locations terrestrial reference that step S1.1 draws, put and fix each assembly.
Perform step S1.4: lift the first pre-splicing moulding bed location on the first montant 5; Mate the port between the first montant 5 and the first arch rib 1 and the first bridge floor beam box-structure 3.Lift the first pre-splicing moulding bed on the first montant 5, to be placed between the first arch rib 1 and the first bridge floor beam box-structure 3 and to be located by the port locations terrestrial reference of the first montant 5; Be connected with the first arch rib 1 and the first bridge floor beam box-structure 3 by the first montant 5 upper and lower port afterwards.
Perform step S1.5: the bolt hole of joining brill first montant 5 two ends.After first montant 5 is located, join the bolt hole at brill first montant 5 two ends, the operation of joining brill is based upon on all pinpoint basis of above-mentioned each parts, therefore, it is possible to ensure the precision of joining brill, thus reaches preframed object.Meanwhile, the bolt hole of joining brill can make fastening bolt connection more firm.
Perform step S1.6. lift the second arch rib 2, second bridge floor beam box-structure 4 and the second montant 6 according to step S1.3 ~ S1.5 and join the bolt hole at brill second montant two ends 6.Assembled in advance and arch rib 1, the first bridge floor beam box-structure 3 that step S1.3 ~ S1.5 relates to of the second arch rib 2, second bridge floor beam box-structure 4 and the second montant 6 and the assembling method of the first montant 5 consistent.
Perform S2: bridge floor beam is assembled; This process is consistent with the operating principle of step S1.When after completing steps S1, by each assembly dismounting of lifting, for subsequent use.
Perform step S2.1: in the middle of drawing bridge floor beam, the located lateral terrestrial reference that arm 8, second chooses arm 9, first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4 chosen by girder 7, first; For preparing in ensuing each assembly lifting location.
Perform step S2.2: make the second pre-splicing moulding bed; In the middle of making bridge floor beam, the moulding bed that arm 8, second chooses arm 9, first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4 chosen by girder 7, first, enables the mutual linking of said modules firm and the assembled environment of bridge that is virtually reality like reality.
Perform step S2.3: lift the second pre-splicing moulding bed location on the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4; During location, the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4 its located lateral terrestrial reference involutory also rigidly fix with the second pre-splicing moulding bed.
Perform step S2.4 and S2.5: in the middle of lifting bridge floor beam, girder 7, first is chosen arm 8 and second and chosen the second pre-splicing moulding bed location on arm 9; Girder 7 in the middle of bridge floor beam is fixed between the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4; Choosing arm 8 by first is fixed on the first bridge floor beam box-structure 3; Choose arm 9 to be fixed on second on the second bridge floor beam box-structure 4.By above-mentioned assembled, arm 8 is chosen to girder 7, first in the middle of the first bridge floor beam box-structure 3, second bridge floor beam box-structure 4 of bridge floor beam, bridge floor beam and simulation is made in the second linking of choosing between arm 9, can accurately locate fastening bolt and bolt hole thereof.
This step also comprises step S2.6: measure the distance L between the first bridge floor beam box-structure 3 and the second bridge floor beam box-structure 4.Distance L between two bridge floor beam box-structures is significant for instructing the pre-splicing harness of ensuing crossbeam 10.
Perform S3: arch rib and crossbeam pre-splicing.Step S1 is completed assembled in advance after the assembly pulled down again lift use, complete arch rib and crossbeam is pre-splicing.
Perform step S3.1: with in step S2.6, after bridge floor beam is assembled in advance, the distance L between described first bridge floor beam box-structure 3 and described second bridge floor beam box-structure 4 is foundation, the surplus of the described crossbeam 10 of line cutting.Distance L between the first bridge floor beam box-structure 3 determined according to step S2.6 and the second bridge floor beam box-structure 4 cuts crossbeam, avoids it long, affects pre-splicing.
Perform step S3.2: draw the port locations terrestrial reference of crossbeam 10 and the located lateral terrestrial reference of described first arch rib 1 and the second arch rib 2; In view of crossbeam 10 is between the first arch rib 1 and the second arch rib 2, being fixedly connected with for both; When drawing the port locations terrestrial reference of crossbeam 10, the spacing L recorded according to step S2.6 should be considered.
Perform step S3.3: make the 3rd pre-splicing moulding bed.
Perform step S3.4: the first arch rib 1 and the second arch rib 2 are lifted upper 3rd pre-splicing moulding bed location; During location, the first arch rib 1 and the second arch rib 2 its located lateral terrestrial reference involutory.Lift the first arch rib 1 and the second arch rib 2, the position relationship in Reality simulation bridge environment.
Perform step S3.5 and S3.6: the port locations terrestrial reference of coupling crossbeam 10, the 3rd pre-splicing moulding bed location on lifting cross beam 10; Join and bore crossbeam 10 bolts at two ends hole.3rd pre-splicing moulding bed on lifting cross beam 10, is placed between the first arch rib 1 and the second arch rib 2, and is connected with the second arch rib 2 with the first arch rib 1 by the port at crossbeam 10 two ends, and join auger shell keyhole.
In order to ensure the positioningly target degree of accuracy, in aforesaid operations, the drafting of above-mentioned all port locations terrestrial references and located lateral terrestrial reference is all realized by total powerstation.
Further, the drafting of the location terrestrial reference coordinate of the first pre-splicing moulding bed, the second pre-splicing moulding bed and the 3rd pre-splicing moulding bed and each assembly uses the same coordinate system, thus avoids not mating of pre-splicing moulding bed and each inter-module position.
The pre-assembly method inventing the beam-arch composition steel bridge provided achieves the succinct assembled in advance of steel structure bridge, steel structure assembly is divided into three parts independent assembled in advance, the coupling that each part can realize between associated component is assembled, thus determines the accurate location of bolt hole; Reduce the overall preframed amount of labour of steel structure bridge and reduce dependence to large lifting equipment simultaneously, shorten the assembled cycle, improve operating efficiency.In order to strengthen preframed effect, positioningly target is drawn and is used the same coordinate system, and adopts high-precision total powerstation; Thus further promote preframed effect.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a pre-assembly method for steel bridge, is characterized in that: be some parts each component clustering of beam-arch composition steel bridge, and the dismounting of each several part independence is pre-splicing; Comprise: the pre-assembly method of S1. arch rib, montant and bridge floor beam box-structure; S2. the pre-assembly method of bridge floor beam; S3. the pre-assembly method of arch rib and crossbeam; Comprise the following steps:
S1. the pre-assembly method of arch rib, montant and bridge floor beam box-structure;
S1.1 draws the first arch rib (1), the second arch rib (2), the first bridge floor beam box-structure (3), second bridge floor beam box-structure (4), the port locations terrestrial reference of the first montant (5) and the second montant (6);
S1.2 makes the first pre-splicing moulding bed, formwork leveling above described first pre-splicing moulding bed;
Described first arch rib (1) and described first bridge floor beam box-structure (3) are hung on described first pre-splicing moulding bed by S1.3; During location, involutory corresponding port locations terrestrial reference;
S1.4 lifts the upper described first pre-splicing moulding bed location of described first montant (5); Mate the port between described first montant (5) and described first arch rib (1) and described first bridge floor beam box-structure (3);
S1.5 joins the bolt hole boring described first montant (5) two ends;
S1.6. lift described second arch rib (2), described second bridge floor beam box-structure (4) and the second montant (6) according to step S1.3 ~ S1.5 and join the bolt hole boring described second montant (6) two ends;
S2. the pre-assembly method of bridge floor beam;
S2.1 draws girder (7), first in the middle of bridge floor beam and chooses the located lateral terrestrial reference that arm (8), second chooses arm (9), described first bridge floor beam box-structure (3) and described second bridge floor beam box-structure (4);
S2.2 makes the second pre-splicing moulding bed;
S2.3 lifts described first bridge floor beam box-structure (3) and the upper second pre-splicing moulding bed location of described second bridge floor beam box-structure (4); During location, described first bridge floor beam box-structure (3) and described second bridge floor beam box-structure (4) its located lateral terrestrial reference involutory also rigidly fix with the second pre-splicing moulding bed;
S2.4 lifts girder (7), first in the middle of described bridge floor beam and chooses arm (8) and second and choose the upper second pre-splicing moulding bed of arm (9) and locate;
S2.5 is fixed on girder (7) in the middle of described bridge floor beam between described first bridge floor beam box-structure (3) and described second bridge floor beam box-structure (4); Choosing arm (8) by described first is fixed on described first bridge floor beam box-structure (3); Choosing arm (9) by described second is fixed on described second bridge floor beam box-structure (4);
S2.6 measures the distance L between described first bridge floor beam box-structure (3) and described second bridge floor beam box-structure (4);
S3. the preassembling method of arch rib and crossbeam;
S3.1 is with in described step S2.6, after bridge floor beam is assembled in advance, distance L between described first bridge floor beam box-structure (3) and described second bridge floor beam box-structure (4) is foundation, the surplus of the line described crossbeam of cutting (10);
S3.2 draws the port locations terrestrial reference of crossbeam (10) and the located lateral terrestrial reference of described first arch rib (1) and the second arch rib (2);
S3.3 makes the 3rd pre-splicing moulding bed;
S3.4 is by described first arch rib (1) and the upper 3rd pre-splicing moulding bed location of the second arch rib (2) lifting; During location, described first arch rib (1) and the second arch rib (2) its located lateral terrestrial reference involutory;
S3.5 mates the port locations terrestrial reference of described crossbeam (10), the upper described 3rd pre-splicing moulding bed location of lifting cross beam (10);
S3.6 joins the bolt hole boring described crossbeam (10) two ends.
2. the pre-assembly method of steel bridge as claimed in claim 1, is characterized in that: in described step S1.2, above described first pre-splicing moulding bed during formwork leveling, and described form height error≤1mm.
3. the pre-assembly method of steel bridge as claimed in claim 1, is characterized in that: in described step S1.1, S2.1, S3.2, and the instrument drawing port locations terrestrial reference and the employing of located lateral terrestrial reference is total powerstation.
4. the pre-assembly method of steel bridge as claimed in claim 1, is characterized in that: the coordinate of locating terrestrial reference and described first pre-splicing moulding bed, the second pre-splicing moulding bed and the 3rd pre-splicing moulding bed described in each uses the same coordinate system when drawing.
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| CN105129614B (en) * | 2015-08-05 | 2017-06-30 | 武船重型工程股份有限公司 | A kind of splice plate pre-setting method |
| CN105369737B (en) * | 2015-10-09 | 2017-03-22 | 江苏中铁山桥重工有限公司 | Splicing process for segment for movable bridge |
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| CN102182139B (en) * | 2011-05-11 | 2012-10-10 | 江苏沪宁钢机股份有限公司 | Manufacturing method of three-crankcase steel connecting bridge |
| CN102277825B (en) * | 2011-05-23 | 2014-02-26 | 江苏沪宁钢机股份有限公司 | Steel truss bridge and method for fabricating same |
| CN102733312A (en) * | 2012-07-03 | 2012-10-17 | 宁波二十冶建设有限公司 | Arch rib manufacturing process |
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Inventor after: Song Zhenqiong Inventor after: Yu Biao Inventor after: Wang Zhen Inventor after: Chen Xiaolong Inventor after: He Yuling Inventor after: Cheng He Inventor after: Li Huiping Inventor before: Wang Zhen Inventor before: Yu Biao Inventor before: Song Zhenqiong Inventor before: Chen Xiaolong Inventor before: He Yuling Inventor before: Cheng He Inventor before: Li Huiping |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG ZHEN YU BIAO SONG ZHENQIONG CHEN XIAOLONG HAO YULING CHENG HE LI HUIPING TO: SONG ZHENQIONG YU BIAO WANG ZHEN CHEN XIAOLONG HAO YULING CHENG HE LI HUIPING |
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