CN100579712C - Firstly hole drilling construction method in girder steel hole-drilling - Google Patents
Firstly hole drilling construction method in girder steel hole-drilling Download PDFInfo
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- CN100579712C CN100579712C CN200710168462A CN200710168462A CN100579712C CN 100579712 C CN100579712 C CN 100579712C CN 200710168462 A CN200710168462 A CN 200710168462A CN 200710168462 A CN200710168462 A CN 200710168462A CN 100579712 C CN100579712 C CN 100579712C
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Abstract
The invention discloses a construction method used for drilling and milling holes on a girder, relating to a method of drilling holes on a rod part of a girder. The method has a process that a butted-groove is milled on a butt position of a steel plate and the butt steel plates are combined and butted into a plate unit; a vertical rib is arranged behind a butt provided with a vertical rib; a template bore is fully covered by one end of the plate unit; a vertical long-side is milled and a vertical groove is processed for combination; A soleplate unit is arranged on a platform used for assembling a jig, and system lines and clapboard assembling lines are drawn; clapboards are assembled against the lines; an internal mould is assembled by milled holes; a web of one side is arranged and tightened; the internal mould is assembled on a suspension part of the web, and a web of the other side is assembled and tightened; the web unit firmly supports the clapboard and is fixedly welded with the clapboard; a cover board is covered and four angels of a box girder are welded; an integrated body is covered by the template and is drilled. For the invention, a hole-group at one end of holes of a faceplate and the web are firstly prearranged, and the internal moulds are assembled to conform opposite positions of the hole-group of each face; a positioning should be done first for the integrated body to be covered by the template; a back-hole end is drilled. The invention can be used for an integrated node rod part which has complicated structure and encounters welding shrink and big distortion, and has high efficiency and low manufacturing cost.
Description
Technical field
The present invention relates to the method for a kind of girder steel rod member drilling.
Background technology
During steel truss girder is made, bridge linear is that the drilling precision by rod member guarantees, because present Bridge Design span is increasing, the bar cross section size is also increasing, the weight of single rod member is also increasing, and the bar cross section of seat bridge is also changing together, task amount is big, the duration anxiety is if adopt traditional drill process, promptly after member is finished, in the locating hole moulding bed, bore locating hole, utilize the whole template that covers in the location of having holed to hole after the demoulding, have following problem: locating hole moulding bed applicability is just more and more narrow, need make the locating hole drilling moulding bed of different size, the place that takies is big, the auxiliary material that use are also many, and efficient is low, far can not meet the needs of production.Therefore need the new method for drilling of development.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide a kind of firstly hole drilling construction method in girder steel hole-drilling that can adapt to various cable-stayed bridge steel box beam erection operating modes.
The implementation of the object of the invention is, firstly hole drilling construction method in girder steel hole-drilling, and concrete steps are as follows:
1) do not wait the steel plate docking location to mill inclined-plane, processing butt joint groove 3,
2) butt joint steel plate spelling, to being connected into the plate unit, vertical rib is installed after the butt joint of vertical rib is arranged,
3) plate unit one end adopts the whole template boring 4 that covers, and is benchmark with the system line of having holed, and mill vertical long limit, and process vertical groove 5,
4) spelling
1. on the platform 6 of assembly unit moulding bed, lay bottom board unit,
2. draw system line, dividing plate assembly unit line,
3. to line assembly unit dividing plate 7 and first hole assembly unit internal mold 8,
One side, the first web unit (9) 4. is installed, and is benchmark with first hole assembly unit internal mold (8), dashes nail location, bolted, guarantees that the first web unit is consistent with the relative position of bottom plate hole,
5. on the first web unit (9), hang worker's type assembly unit internal mold (10),
6. the assembly unit side second web unit (11) in addition be a benchmark with first hole assembly unit internal mold (8), dashes that nail is located, bolted, guarantees that first and second web unit (9,11) is consistent with the relative position of bottom plate hole,
7. first and second web unit and dividing plate hold out against, tack welding,
8. case beam internal partition weld seam welding,
9. cover cover plate unit (12),
10. four main corner angle weld seam weldings of case beam, whole covering template (13) drilling (14).
Longitudinal length shrinks and calculates: calculate by following formula
δ＝6.5*10
-4*Aw*L*Ej/A
δ---amount of contraction (mm)
Aw---section of weld joint amasss (mm
2)
L---beam length (m)
Ej---heat input (J/cm)
A---member section amasss (mm
2).
The Kong Qun of an end on the prefabricated web of the present invention elder generation, the panel hole, by adopting spelling internal mold assembly unit location, end, guarantee that carrying out secondary after each face faciation is to position (spelling spare being welded in the not demoulding under the execution conditions situation that the not demoulding allows) welding, adjustment draws system line, adopt the whole template that covers, elder generation's nose end is towards oncomelania anchoring position, no nose end is located line, covers template according to integral body and bores the back nose end.First Application is in the integrated node member baroque, that welding is shunk, distortion is big in girder steel in the present invention, and efficient height of the present invention can be saved a large amount of frock moulding beds, low cost of manufacture.
Description of drawings
Fig. 1 is a plate of the present invention unit docking scheme,
Fig. 2 is plate unit divided edge structure figure,
Fig. 3 a, b are plate of the present invention unit elder generation hole patterns,
Fig. 4 lays bottom board unit figure on the moulding bed,
Fig. 5 is assembly unit dividing plate and first hole assembly unit internal mold figure,
Fig. 6 is assembly unit one coxostermum figure,
Fig. 7 hangs the oblique montant hole internal mold figure of elder generation of assembly unit,
Fig. 8 is assembly unit coxostermum figure in addition,
Fig. 9 covers cover plate figure,
The whole template figure that covers of Figure 10,
Figure 11 is a drill drawing of the present invention,
Figure 12 is one of assembly unit location internal mold mode figure,
Figure 13 is two of assembly unit location internal mold mode figure.
The specific embodiment
The present invention is described in detail in detail with reference to the accompanying drawings:
Concrete steps of the present invention are, with reference to Fig. 1,3,
1),, do not wait steel plate 1,2 docking locations to mill inclined-plane, processing butt joint groove 3 as shown in Figure 2 with reference to Fig. 1;
2) butt joint steel plate spelling, to being connected into the plate unit shown in Fig. 3 a, vertical rib is installed after the butt joint of vertical rib is arranged as Fig. 3 b sample,
3) with reference to Fig. 4, plate unit one end adopts the whole template boring 4 that covers, and is benchmark with the system line of having holed, and mill vertical long limit, and process vertical groove 5,
4) spelling
1. with reference to Fig. 5, on the platform 6 of assembly unit moulding bed, lay bottom board unit,
2. draw system line, dividing plate assembly unit line,
3. to line assembly unit dividing plate 7 and first hole assembly unit internal mold 8,
4. with reference to Fig. 6,12, a side first web 9 being installed, is benchmark with first hole assembly unit internal mold 8, dashes nail location, bolted, guarantees that web is consistent with the relative position of bottom plate hole,
5. with reference to Fig. 7,13, on the first web unit 9, hang worker's type assembly unit internal mold 10,
6. with reference to Fig. 8,12, assembly unit is side second web 11 in addition, is benchmark with first hole assembly unit internal mold 8, dashes nail location, bolted, guarantees that first and second web unit 9,11 is consistent with the relative position of bottom plate hole,
7. web unit and dividing plate hold out against, tack welding,
8. case beam internal partition weld seam welding,
9. with reference to Fig. 9, cover cover plate unit 12,
10. four main corner angle weld seam weldings of case beam, the whole template 13 that covers is by drilling 14 shown in Figure 10.
By the data of collecting in the girder steel construction process, amount of contraction and case beam section size are inversely proportional to, and are directly proportional with weld deposit amount, heat input size, beam length etc., derive following vertical weld length and shrink computing formula calculating:
δ＝6.5*10
-4*Aw*L*Ej/A
δ---amount of contraction (mm)
Aw---section of weld joint amasss (mm
2)
L---beam length (m)
Ej---heat input (J/cm)
Aw---member section amasss (mm
2).
This formula is verified in follow-up production, and this amount of contraction is less for big node stomidium group and the influence of web member (montant, brace) hole group's spacing simultaneously, can satisfy design and job specfication.
Claims (1)
1, firstly hole drilling construction method in girder steel hole-drilling is characterized in that concrete steps are as follows:
1) do not wait the steel plate docking location to mill inclined-plane, processing butt joint groove (3),
2) butt joint steel plate spelling, to being connected into the plate unit, vertical rib is installed after the butt joint of vertical rib is arranged,
3) plate unit one end adopts the whole template boring (4) that covers, and is benchmark with the system line of having holed, and mill vertical long limit, and process vertical groove (5),
4) spelling
1. go up at the platform (6) of assembly unit moulding bed and lay bottom board unit,
2. draw system line, dividing plate assembly unit line,
3. to line assembly unit dividing plate (7) and first hole assembly unit internal mold (8),
One side, the first web unit (9) 4. is installed, and is benchmark with first hole assembly unit internal mold (8), dashes nail location, bolted, guarantees that the first web unit is consistent with the relative position of bottom plate hole,
5. on the first web unit (9), hang worker's type assembly unit internal mold (10),
6. the assembly unit side second web unit (11) in addition be a benchmark with first hole assembly unit internal mold (8), dashes that nail is located, bolted, guarantees that first and second web unit (9,11) is consistent with the relative position of bottom plate hole,
7. first and second web unit and dividing plate hold out against, tack welding,
8. case beam internal partition weld seam welding,
9. cover cover plate unit (12),
10. four main corner angle weld seam weldings of case beam, whole covering template (13) drilling (14).
Longitudinal length shrinks and calculates: calculate by following formula
δ＝6.5*10
-4*Aw*L*Ej/A
δ---amount of contraction (mm)
Aw---section of weld joint amasss (mm
2)
L---beam length (m)
Ej---heat input (J/cm)
A---member section amasss (mm
2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710168462A CN100579712C (en) | 2007-11-26 | 2007-11-26 | Firstly hole drilling construction method in girder steel hole-drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710168462A CN100579712C (en) | 2007-11-26 | 2007-11-26 | Firstly hole drilling construction method in girder steel hole-drilling |
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| Publication Number | Publication Date |
|---|---|
| CN101186003A CN101186003A (en) | 2008-05-28 |
| CN100579712C true CN100579712C (en) | 2010-01-13 |
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| CN200710168462A Active CN100579712C (en) | 2007-11-26 | 2007-11-26 | Firstly hole drilling construction method in girder steel hole-drilling |
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| CN103132649A (en) * | 2013-03-13 | 2013-06-05 | 广西大学 | Steel box girder matched with cellular steel web plate |
| CN103397593B (en) * | 2013-08-12 | 2015-09-30 | 中铁大桥勘测设计院集团有限公司 | The web member of steel truss girder bridge Nodes intersects joints structure mutually |
| CN104209706B (en) * | 2014-08-22 | 2016-08-17 | 宝鸡石油机械有限责任公司 | A kind of manufacture method of many dividing plates large aperture tank tower |
| CN104911989A (en) * | 2015-05-05 | 2015-09-16 | 中铁大桥勘测设计院集团有限公司 | Box and truss composite node structure of steel box and truss composite bridge |
| CN105290724B (en) * | 2015-10-09 | 2017-08-25 | 江苏中铁山桥重工有限公司 | A kind of bridge lower boom manufacture craft |
| CN105880940B (en) * | 2016-04-20 | 2019-01-25 | 中建钢构武汉有限公司 | A kind of box bending component manufacturing method |
| CN106078114A (en) * | 2016-07-21 | 2016-11-09 | 中铁九桥工程有限公司 | A kind of large span main truss, floorings integration manufacture and secondary purlin borehole accuracy controls technology |
| CN107253026B (en) * | 2017-06-23 | 2019-03-19 | 江苏中铁山桥重工有限公司 | A kind of multidirectional four anchor heads overall steel anchor beam production method |
| CN107855742B (en) * | 2017-12-27 | 2019-08-20 | 浙江东南网架股份有限公司 | One kind being used for great cantilever rotating folding roof system steel track box beam processing method |
| CN109208486B (en) * | 2018-10-19 | 2020-09-01 | 江苏京沪重工有限公司 | Embedding and repairing segmented manufacturing process between steel bridge roof plates |
| CN113042981B (en) * | 2021-04-21 | 2022-02-01 | 中国水利水电第十工程局有限公司 | End column structure assembling tool and rigid water-stopping herringbone gate manufacturing method |
| CN114290065B (en) * | 2022-02-21 | 2023-11-07 | 中铁山桥集团有限公司 | Hole making method for oversized rod piece |
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Owner name: CHINA RAILWAY NINE BRIDGE ENGINEERING CO., LTD. Free format text: FORMER NAME: SEVENTH ENGINEERING OF CHINA S RAILROAD BRIDGE BUREAU GROUP CO.LTD |
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Address after: 332004 No. 148 East Binjiang Road, Jiangxi, Jiujiang Patentee after: China Railway Jiujiang Bridge Engineering Co., Ltd. Address before: 332004 No. 148 East Binjiang Road, Jiangxi, Jiujiang Patentee before: Seventh Engineering of China's Railroad Bridge Bureau Group Co.Ltd |