CN102061807B - Method for assembling large-span H-shaped steel truss beam - Google Patents
Method for assembling large-span H-shaped steel truss beam Download PDFInfo
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- CN102061807B CN102061807B CN2010105638218A CN201010563821A CN102061807B CN 102061807 B CN102061807 B CN 102061807B CN 2010105638218 A CN2010105638218 A CN 2010105638218A CN 201010563821 A CN201010563821 A CN 201010563821A CN 102061807 B CN102061807 B CN 102061807B
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Abstract
The invention discloses a method for assembling a large-span H section steel truss beam. In the assembling method, a forming die assembly frame is adopted and comprises a rectangular working platform, and a plurality of compressors are arranged at equal intervals along the length direction of the working platform. The assembling method comprises the following steps of: assembling an upper chord beam and a lower chord beam with H-shaped structures; assembling into a special diagonal web member with a serpent-shaped structure, wherein the special diagonal web member consists of a web plate II and a flange plate II, and the section has an H-shaped structure; and assembling the upper chord beam, the lower chord beam and the special diagonal web member on the forming die assembly frame. The method gets rid of the limitation that the hot rolled H-shaped steel is adopted at present; steel plates with greater thickness are selected under the condition of not increasing the beam section space so as to meet the requirement of a large-span and high-bearing capacity truss beam; when the upper chord beam, the lower chord beam and the special diagonal web member are assembled, the forming die assembly frame is used for positioning, and small deformation and high precision are ensured during welding; and the forming die assembly frame is suitable for massive production of truss beams.
Description
Technical field
The present invention relates to a kind of assemble method of girder truss, relate in particular to a kind of assemble method of large span H shaped steel girder truss.
Background technology
At present, large span space all need be installed large span H shaped steel girder truss in bearing platform that many steel mills build and heavy construction, to carry big load, strengthens the safety and the stability of whole flat and building structure.
In the prior art, the H shaped steel of the main employing hot rolling of large span H shaped steel girder truss is as wind up beam and lower edge beam, and wind up hot rolling is set between beam and the lower edge beam H shaped steel as diagonal web member.Though the structure fabrication of this existing large span H shaped steel girder truss is simple; But the web of the H shaped steel of hot rolling and thinner thickness, the narrow width of frange plate can't satisfy existing large span, the demand of big weight bearing; If will satisfy the demand of large span, big weight bearing; Certainly will select the H shaped steel of the hot rolling of bigger model for use, and the structure of the H shaped steel of the hot rolling of bigger model is bigger, it is big to take up room.
Summary of the invention
To above-mentioned weak point, the invention provides a kind of assemble method of making the large span H shaped steel girder truss that the girder truss cross-sectional volume is little, load capacity is big, the girder truss structure of assembling through this method is more stable, safety factor is higher.
The assemble method of a kind of large span H shaped steel girder truss provided by the invention has adopted a kind of assembling loose tool frame in this assemble method, said assembling loose tool frame comprises a rectangle working platform, along the length direction of working platform is equidistant a plurality of hold down gags is set; Said hold down gag comprises the movably pressured column that is arranged on working platform one side, at the top of pressured column the jack that stretches to the working platform upper surface is set, and is fixed with baffle plate at the opposite side top of working platform; This assemble method comprises the steps:
(1), the wind up beam and the lower edge beam of assembling H type structure:
A, employing steel plate carry out blanking, cut by the web I in wind up beam and the lower edge beam and the width dimensions of frange plate I;
B, respectively web I and frange plate I in wind up beam and the lower edge beam are docked; Open X type groove during butt joint earlier, adopt the Lincoln weld welding, need weld scarfing cinder polishing after single face has welded, welding again reverse side;
C, web I and frange plate I welding assembly after good be will weld again, and the wind up beam and the lower edge beam of H type structure will be welded into;
(2), be assembled into the different in nature diagonal web member of serpentine configuration, said different in nature diagonal web member is made up of web II and frange plate II, and the cross section becomes H type structure:
The web II of a, the different in nature diagonal web member of assembling: adopt earlier steel plate to carry out blanking, cut, cut into straightway and segmental arc by the width dimensions of different in nature diagonal web member median ventral plate II; Straightway and segmental arc steel plate under will cutting are then put by serpentine configuration, and are welded into the web II;
B, the frange plate II of making different in nature diagonal web member: adopt steel plate to carry out blanking earlier, cut, cut into straight plate by the width dimensions of the frange plate II of different in nature diagonal web member; Adopt plate bending rolls that wherein a part of straight coiled sheet is curved the circular arc type frange plate;
(3), will wind up beam, lower edge beam and different in nature diagonal web member assembled:
A, backing plate is placed on the working platform; Again different in nature diagonal web member is lain on the working platform; Under the web II of backing plate pad in different in nature diagonal web member, will wind up beam and lower edge beam are placed on the both sides of different in nature diagonal web member respectively again, and one of them string beam leans against on the baffle plate; Exert pressure with another string beam of jack pair, more different in nature diagonal web member is welded with wind up beam and lower edge beam respectively;
B, the straight plate in the step (2) and circular arc type frange plate are separately positioned on web the II corresponding straightway and segmental arc, and the web II is welded with straight plate and circular arc type frange plate respectively.
Further, be drilled with connecting hole on said wind up beam and the lower edge beam.
Compared with prior art, the assemble method of a kind of large span H shaped steel girder truss of the present invention has following advantage:
1, will wind up beam, lower edge beam and different in nature diagonal web member of the present invention all adopts steel plate to dress up H shaped steel through soldering group; Broken away from the hot rolled H-shaped restriction of present employing; Under the situation that does not increase the beam section space; Select the bigger steel plate of thickness for use, to satisfy the demand of large span, girder truss that supporting capacity is big.
2, when the beam that winds up, lower edge beam and different in nature diagonal web member are assembled, through assembling loose tool frame location, during welding distortion little, precision is high; Improved simultaneously production efficiency greatly.
3, the position through the pressured column in the adjustment assembling loose tool frame is to adapt to the requirement of different girder truss height, to reach the large span of making different size, the purpose of big load truss beam.
Description of drawings
Fig. 1 is the structural representation of assembling loose tool frame;
Fig. 2 is along the cross section view of A-A direction among Fig. 1;
Fig. 3 is the structural representation of the web of different in nature diagonal web member;
Fig. 4 is the structural representation of large span H shaped steel girder truss.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done explanation in further detail.
A kind of assemble method of large span H shaped steel girder truss; Adopted a kind of assembling loose tool frame in this assemble method; The structure of assembling loose tool frame is like Fig. 1, shown in 2; Assembling loose tool frame comprises a rectangle working platform 1, along the equidistant a plurality of hold down gags (three horizontal hold down gags only draw among the figure) that are provided with of the length direction of working platform 1; Hold down gag comprises the movably pressured column 2 that is arranged on working platform 1 one sides, at the top of pressured column 2 jack 3 that stretches to working platform 1 upper surface is set, and is fixed with baffle plate 4 at the opposite side top of working platform 1.
This assemble method comprises the steps:
(1), the wind up beam 5 and the lower edge beam 6 of assembling H type structure:
A, employing steel plate carry out blanking, cut by the web I 7 in wind up beam 5 and the lower edge beam 6 and the width dimensions of frange plate I 8;
B, respectively web I 7 and frange plate I 8 in wind up beam 5 and the lower edge beam 6 are docked; Open X type groove during butt joint earlier, adopt the Lincoln weld welding, need weld scarfing cinder polishing after single face has welded, welding again reverse side;
C, web I 7 and frange plate I 8 welding assemblies after good be will weld again, and the wind up beam 5 and the lower edge beam 6 of H type structure will be welded into.
(2), be assembled into the different in nature diagonal web member 9 of serpentine configuration, different in nature diagonal web member 9 is made up of web II 10 and frange plate II 11, and cross section one-tenth H type structure:
The web II 10 of a, the different in nature diagonal web member 9 of assembling: adopt earlier steel plate to carry out blanking, cut, cut into straightway and segmental arc by the width dimensions of different in nature diagonal web member 9 median ventral plate II 10; Straightway and segmental arc steel plate under will cutting are then put by serpentine configuration, and are welded into web II 10;
B, the frange plate II 11 of making different in nature diagonal web member: adopt steel plate to carry out blanking earlier, cut, cut into straight plate by the width dimensions of the frange plate II 11 of different in nature diagonal web member 9; Adopt plate bending rolls that wherein a part of straight coiled sheet is curved the circular arc type frange plate.
(3), will wind up beam 5, lower edge beam 6 and different in nature diagonal web member 9 assembled:
A, backing plate 12 is placed on the working platform 1; Again different in nature diagonal web member 9 is lain on the working platform 1; The web II of backing plate 12 pads in different in nature diagonal web member 9 10 times, will wind up beam 5 and lower edge beam 6 are placed on the both sides of different in nature diagonal web member 9 respectively again, and one of them string beam leans against on the baffle plate 4; With jack 3 another string beam is exerted pressure, more different in nature diagonal web member 9 is welded with lower edge beam 6 with the beam 5 that winds up respectively;
B, the straight plate in the step (2) and circular arc type frange plate are separately positioned on web the II 10 corresponding straightway and segmental arc, and web II 10 is welded with straight plate and circular arc type frange plate respectively.
To wind up beam 5, lower edge beam 6 and different in nature diagonal web member 9 of this method adopts steel plates to dress up H shaped steel through soldering group; Broken away from the hot rolled H-shaped restriction of present employing; Under the situation that does not increase the beam section space; Select the bigger steel plate of thickness for use, to satisfy the demand of large span, girder truss that supporting capacity is big.When the beam 5 that winds up, lower edge beam 6 and different in nature diagonal web member 9 are assembled, through assembling loose tool frame location, during welding distortion little, precision is high; Improved simultaneously production efficiency greatly.The position of assembling the pressured column 2 in the loose tool frame through adjustment is to adapt to the requirement of different girder truss height, to reach the large span of making different size, the purpose of big load truss beam.
In the present embodiment, be drilled with connecting hole on wind up beam 5 and the lower edge beam 6, can the beam 5 that wind up be connected with other connector with lower edge beam 6 through erection bolt in connecting hole.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. the assemble method of a large span H shaped steel girder truss; It is characterized in that; Adopted a kind of assembling loose tool frame in this assemble method, said assembling loose tool frame comprises a rectangle working platform (1), along the length direction of working platform (1) is equidistant a plurality of hold down gags is set; Said hold down gag comprises the movably pressured column (2) that is arranged on working platform (1) one side; Top at pressured column (2) is provided with the jack (3) that stretches to working platform (1) upper surface, is fixed with baffle plate (4) at the opposite side top of working platform (1); This assemble method comprises the steps:
(1), the beam that winds up (5) and the lower edge beam (6) of assembling H type structure:
A, adopt steel plate to carry out blanking, cut by the width dimensions of web I (7) in beam that winds up (5) and the lower edge beam (6) and frange plate I (8);
B, web I (7) in beam that winds up (5) and the lower edge beam (6) and frange plate I (8) are docked respectively; Open X type groove during butt joint earlier, adopt the Lincoln weld welding, need weld scarfing cinder polishing after single face has welded, welding again reverse side;
C, web I (7) and frange plate I (8) welding assembly after good be will weld again, and the beam that winds up (5) and the lower edge beam (6) of H type structure will be welded into;
(2), be assembled into the special-shaped diagonal web member (9) of serpentine configuration, said special-shaped diagonal web member (9) is made up of web II (10) and frange plate II (11), and the cross section becomes H type structure:
A, the web II (10) of assembling special-shaped diagonal web member (9): adopt earlier steel plate to carry out blanking, cut, cut into straightway and segmental arc by the width dimensions of special-shaped diagonal web member (9) median ventral plate II (10); Straightway and segmental arc steel plate under will cutting are then put by serpentine configuration, and are welded into web II (10);
B, the frange plate II (11) of making special-shaped diagonal web member: adopt steel plate to carry out blanking earlier, cut, cut into straight plate by the width dimensions of the frange plate II (11) of special-shaped diagonal web member (9); Adopt plate bending rolls that wherein a part of straight coiled sheet is curved the circular arc type frange plate;
(3), will wind up beam (5), lower edge beam (6) and special-shaped diagonal web member (9) assembled:
A, backing plate (12) is placed on the working platform (1); Again special-shaped diagonal web member (9) is lain on the working platform (1); Under the web II (10) of backing plate (12) pad in special-shaped diagonal web member (9); To wind up again beam (5) and lower edge beam (6) is placed on the both sides of special-shaped diagonal web member (9) respectively; One of them string beam leans against on the baffle plate (4), with jack (3) another string beam is exerted pressure, and more special-shaped diagonal web member (9) is welded with beam that winds up (5) and lower edge beam (6) respectively;
B, the straight plate in the step (2) and circular arc type frange plate are separately positioned on web II (10) the corresponding straightway and segmental arc, and web II (10) is welded with straight plate and circular arc type frange plate respectively.
2. the assemble method of a kind of large span H shaped steel girder truss according to claim 1 is characterized in that: be drilled with connecting hole on said beam that winds up (5) and the lower edge beam (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105638218A CN102061807B (en) | 2010-11-29 | 2010-11-29 | Method for assembling large-span H-shaped steel truss beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105638218A CN102061807B (en) | 2010-11-29 | 2010-11-29 | Method for assembling large-span H-shaped steel truss beam |
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| CN102061807A CN102061807A (en) | 2011-05-18 |
| CN102061807B true CN102061807B (en) | 2012-01-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102896480B (en) * | 2012-10-25 | 2015-05-27 | 盈都桥梁钢构工程有限公司 | Manufacture method for double-curve H-shaped steel |
| CN109650256B (en) * | 2018-12-14 | 2020-03-31 | 中冶南方工程技术有限公司 | Automatic composite plate blank assembling method and system |
| CN112878709B (en) * | 2021-01-29 | 2022-08-19 | 中国五冶集团有限公司 | Accurate and rapid fine adjustment device for large steel column installation and fine adjustment method thereof |
| CN113530265B (en) * | 2021-07-20 | 2022-05-27 | 中国路桥工程有限责任公司 | Steel beam construction device and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1483460A1 (en) * | 2002-02-20 | 2004-12-08 | Aluma Enterprises Inc. | Column hung truss system |
| CN101050659A (en) * | 2006-04-03 | 2007-10-10 | 杨峰 | Large span combined truss |
| CN101603352A (en) * | 2009-06-24 | 2009-12-16 | 中国电子工程设计院 | A kind of Castellated beam and steel frame system |
| CN201460022U (en) * | 2009-06-23 | 2010-05-12 | 上海美建钢结构有限公司 | Cold bending thin-wall welded steel truss purline |
| CN101775876A (en) * | 2010-01-28 | 2010-07-14 | 中国瑞林工程技术有限公司 | Spacial steel roof truss |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6519908B1 (en) * | 2000-06-27 | 2003-02-18 | Nci Building Systems, L.P. | Structural member for use in the construction of buildings |
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- 2010-11-29 CN CN2010105638218A patent/CN102061807B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1483460A1 (en) * | 2002-02-20 | 2004-12-08 | Aluma Enterprises Inc. | Column hung truss system |
| CN101050659A (en) * | 2006-04-03 | 2007-10-10 | 杨峰 | Large span combined truss |
| CN201460022U (en) * | 2009-06-23 | 2010-05-12 | 上海美建钢结构有限公司 | Cold bending thin-wall welded steel truss purline |
| CN101603352A (en) * | 2009-06-24 | 2009-12-16 | 中国电子工程设计院 | A kind of Castellated beam and steel frame system |
| CN101775876A (en) * | 2010-01-28 | 2010-07-14 | 中国瑞林工程技术有限公司 | Spacial steel roof truss |
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