CN107419907A - A kind of steel-making tower steel structure platform is staggered installation of welding method - Google Patents

A kind of steel-making tower steel structure platform is staggered installation of welding method Download PDF

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Publication number
CN107419907A
CN107419907A CN201710779990.7A CN201710779990A CN107419907A CN 107419907 A CN107419907 A CN 107419907A CN 201710779990 A CN201710779990 A CN 201710779990A CN 107419907 A CN107419907 A CN 107419907A
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China
Prior art keywords
platform
prop
lower prop
steel
welding
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CN201710779990.7A
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CN107419907B (en
Inventor
孔炯
金仁才
朱红刚
周金龙
施光涛
徐峥
吴名
陈志�
郑治飞
汪柱兵
琚志海
郭建华
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements

Abstract

Welding method is staggered installation of the invention discloses a kind of steel-making tower steel structure platform, using supporting role of the halfpace during interlayer stage+module, is resisted due to welding deformation caused by welding concentrated stress, its step is substantially:First, preparation of construction:1), basic repetition measurement;2), component is marched into the arena repetition measurement;2nd, lower platform and component installation:Steel column is first installed, then one layer of platform and two-layer platform are installed successively, one layer of platform is welded after two-layer platform installs;3rd, upper brace and component installation:Upper prop is installed, then installs three layers of platform member, two-layer platform is welded after installing, with this upward erecting and welding.The erecting and welding method of the present invention, ensure that the orderly progress of erecting and welding, while improve efficiency of construction and installation accuracy.

Description

A kind of steel-making tower steel structure platform is staggered installation of welding method
Technical field
The present invention relates to technical field of buildings, and in particular to a kind of steel-making tower steel structure platform is staggered installation of welding side Method.
Background technology
The skyscraper of full steel structure compares more at home at present, and main pooled applications are in conference and exhibition center, grand theater, physical culture In terms of shop and indivedual Business Buildings.And the high-rise steel structure of metallurgical system construction is concentrated mainly on converter and blast furnace region, highly exist 60m or 80m or so.The characteristics of converter system steel structure platform is that the more discrepancy in elevation of layer are big, and centralized arrangement has jumbo, converter system The comprehensive progress of Steel Structure Installation directly affects the installation effectiveness of steelmaking system.
In general, technique steel construction in converter region takes incremental pattern to be installed by chapter, lift, install, The installation of landing beam, welding etc., but for multi-storey steel structure installation, welding sequence has a great influence to structure both shrinks how Ensure that it is the emphasis controlled to make steel tower steel structure platform and in order, precisely install.
The content of the invention
The purpose of this invention is welded aiming in steel-making high building multi-storey steel structure conventional mounting welding process due to concentrating Scoop out power and cause the skew of steel columns of steel structures perpendicularity, welding contraction distortion, solve control platform erecting and welding method, to improve The efficiency of Steel Structure Installation, quality stability and the problem of reduce job safety risk.
To solve the above problems, the present invention provides following technical scheme:
A kind of steel-making tower steel structure platform is staggered installation of welding method, is in interlayer stage+module using halfpace During supporting role, resist due to welding deformation caused by welding concentrated stress, its construction procedure is as follows:
Step 1: preparation of construction
A, surveying setting-out, repetition measurement is carried out to steel-column foundation using theodolite and spirit level, measuring goes out steel-column foundation in length and breadth To center line;
B, component site acceptance, the component marched into the arena is checked, the size of component carries out repetition measurement and is identified;
Step 2: lower platform and component installation
A, lower prop I, lower prop II, lower prop III are lifted successively, and lower prop I, lower prop II, lower prop are measured using theodolite and spirit level III perpendicularity and absolute altitude;
B, once grouting is carried out after centering to lower prop I, lower prop II, lower prop III, grouting height control is away from steel column base Plinth upper surface about 200mm;
C, one layer of platform of construction:
Construction transverse frame beam and vertical Vierendeel girder:First installation transverse frame beam between lower prop I and lower prop II, utilize Crane gear lifts Vierendeel girder the bracket upper surface to steel column I and steel column II, Vierendeel girder is kept water with steel column I and steel column II It is flat, connecting plate I is installed and high-strength bolt that both sides take, high-strength bolt, which need to pass through, just twists and twist eventually;
Vertical Vierendeel girder is identical with the mode of installation transverse frame beam with the connected mode of steel column;Consequently, it is possible to vertical frame Set a roof beam in place, transverse frame beam lower prop I, lower prop II, lower prop III are connected it is integral, connected mode be high-strength bolt connection, wouldn't weld Connect;
Construct vertical platform secondary beam and horizontal platform secondary beam:After girder I and girder II are installed, lifted using crane gear Secondary beam, connecting plate II, installation bolt, then welded seam are installed successively;Other vertical platform secondary beam, horizontal platforms in the platform Secondary beam mounting means is identical;
D, construct two-layer platform, the component mounting means same layer platform in two-layer platform;
E, start to weld the component in one layer of platform after two-layer platform installs;First soldering frame is set a roof beam in place and steel column I, steel column The beam upper end weld seam of II connection, then welded grider lower end weld seam;
Step 3: upper brace and component installation
A, while Member Welding in one layer of platform, start that upper prop I, upper prop II, upper prop III are installed, and respectively with Post I, lower prop II, the butt welding of lower prop III;
Component in three layers of platform, mounting means same layer platform and two-layer platform are installed b,;
C, after the component in three layers of platform installs, then the Vierendeel girder carried out in two-layer platform connects with steel column I, steel column II The welding of the beam upper end weld seam, beam lower end weld seam that connect, the welding manner of welding manner same layer platform;
D, the component installation in four layers of platform is carried out, mounting means is identical with last layer platform, then carries out three layers of platform Interior Vierendeel girder connecting welding work;
E, the Vierendeel girder connecting welding work in four layers of platform is finally carried out;
F, back-grouting work is carried out to the suspension column of lower prop I, lower prop II, lower prop III.
Further, in above-mentioned steps three the installation centering of upper prop I, upper prop II, upper prop III with the lower prop in step 2, but The centering point of perpendicularity is with upper prop I, upper prop II, the top center of upper prop III and lower prop I, lower prop II, the suspension column center pair of lower prop III It should be worth.
Compared with prior art, beneficial effects of the present invention are:
1) this method avoids because Vierendeel girder concentration welding and caused by welding deformation and influence the perpendicularity of steel column, then The difficulty for causing upper platform to install, ensure the orderly progress of erecting and welding, improve efficiency of construction and installation accuracy;
2) present invention improves product quality and operating efficiency, significantly reduces security risk, reduces large-scale crane Using man-hour, engineering cost is reduced;With practicality and operability.
Brief description of the drawings
Fig. 1 is the elevation of steel structure platform construction of the present invention;
Fig. 2 is the top view of steel structure platform construction of the present invention;
Fig. 3 is beam-column scheme of installation of the present invention;
Fig. 4 is the scheme of installation of middle girder and secondary beam of the present invention;
In figure:
1- steel-column foundations, 2- lower props I, 3- lower props II, 4- lower props III, mono- layer of platform of 5-, 6- two-layer platforms, 7- steel columns, 8- Vertical Vierendeel girder, 9- transverse frames beam, the vertical platform secondary beams of 10-, 11- horizontal platforms secondary beam, 12- upper props I, 13- upper props II, 14- upper props III, tri- layers of platforms of 15-, tetra- layers of platforms of 16-, 17- once groutings, 18- back-groutings, 19- steel columns I, 20- steel columns II, 21- Vierendeel girders, 22- connecting plates I, 23- high-strength bolts, 24- beams upper end weld seam, 25- beams lower end weld seam, 26- girders I, 27- girders IIth, 28- connecting plates II, 29- installation bolts, 30- weld seams, 31- secondary beams.
Embodiment
To further describe the present invention, with reference to implementing, the invention will be further described with accompanying drawing.
As shown in Figures 1 to 4, a kind of tower steel structure platform of making steel of the present invention is staggered installation of welding method, is to utilize Supporting role of the halfpace during interlayer stage+module, resist due to welding deformation caused by welding concentrated stress, its Construction procedure is as follows:
Step 1: preparation of construction
A, surveying setting-out, repetition measurement is carried out to steel-column foundation 1 using theodolite and spirit level, carries out repetition measurement and be to ensure that steel column hangs down The premise of straight degree installation quality, then measuring go out the vertically and horizontally center line of steel-column foundation 1;
B, component site acceptance, the component marched into the arena is checked, the size of component carries out repetition measurement and is identified.
Step 2: lower platform and component installation
A, lower prop I 2, lower prop II 3, lower prop III 4 are lifted successively, and lower prop I 2, lower prop II are measured using theodolite and spirit level 3rd, the perpendicularity and absolute altitude of lower prop III 4, the measurement of perpendicularity should be carried out from capital to suspension column;
B, once grouting 17 is carried out after centering to lower prop I 2, lower prop II 3, lower prop III 4, grouting height control is away from steel The upper surface of column foundation 1 about 200mm, to ensure the stability of steel column;
C, one layer of platform 5 of construction:
Construction transverse frame beam 9 and vertical Vierendeel girder (8):First installation transverse frame between lower prop I 2 and lower prop II 3 Beam 9, Vierendeel girder 21 is lifted into bracket upper surface to steel column I 19 and steel column II 20 using crane gear, makes Vierendeel girder 21 and steel Post I 19 and the keep level of steel column II 20, install the high-strength bolt 23 that connecting plate I 22 and both sides take, high-strength bolt 23 need by Just twist and twist eventually;
Vertical Vierendeel girder 8 is identical with the mode of installation transverse frame beam 9 with the connected mode of steel column 7;It is consequently, it is possible to vertical Vierendeel girder 8, transverse frame beam 9 are integral by lower prop I 2, lower prop II 3, the connection of lower prop III 4, and connected mode is that high-strength bolt 23 connects Connect, wouldn't weld;
Construct vertical platform secondary beam 10 and horizontal platform secondary beam 11:After girder I 26 and girder II 27 are installed, lifting is utilized Equipment hoisting secondary beam 31, connecting plate II 28, installation bolt 29, then welded seam 30 are installed successively;Other in the platform are vertical Platform secondary beam 10, the mounting means of horizontal platform secondary beam 11 are same;
D, construct two-layer platform 6, the component mounting means same layer platform 5 in two-layer platform 6;
E, two-layer platform 6 starts to weld the component in one layer of platform 5 after installing;First soldering frame set a roof beam in place 21 with steel column I 19th, the beam upper end weld seam 24 that steel column II 20 connects, then welded grider lower end weld seam 25;
Step 3: upper brace and component installation
A, while Member Welding in one layer of platform 5, start that upper prop I 12, upper prop II 13, upper prop III 14 are installed, and Respectively with lower prop I 2, lower prop II 3, the butt welding of lower prop III 4;
Component in three layers of platform 15, mounting means same layer platform 5 and two-layer platform 6 are installed b,;
C, after the component in three layers of platform 15 installs, then carry out Vierendeel girder 21 in two-layer platform 6 and steel column I 19, The welding of beam upper end weld seam 24, beam lower end weld seam 25 that steel column II 20 connects, the welding manner of welding manner same layer platform 5;
D, the component installation in four layers of platform 16 is carried out, mounting means is identical with last layer platform 5, then carries out three layers and put down The connecting welding of Vierendeel girder 21 work in platform 15;
E, the connecting welding of Vierendeel girder 21 work in four layers of platform 16 is finally carried out;
F, the suspension column progress back-grouting 18 to lower prop I 2, lower prop II 3, lower prop III 4 works.
In the present embodiment, in step 3 the installation centering of upper prop I 12, upper prop II 13, upper prop III 14 with step 2 Lower prop, but the centering point of perpendicularity be with upper prop I 12, upper prop II 13, the top center of upper prop III 14 and lower prop I 2, lower prop II 3, under The suspension column center respective value of post III 4.
In the present embodiment, the welding of Vierendeel girder 21 is carried out after stage+module above it, and two-layer platform 6 is pacified Install and finish one layer of platform 5 of welding, three layers of construction of platform 15 finish welding two-layer platform 6, by that analogy until last layer of platform Welding is completed.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (2)

1. a kind of steel-making tower steel structure platform is staggered installation of welding method, it is characterized in that:Put down using halfpace in interlayer Supporting role in platform installation process, resist because welding deformation, its construction procedure are as follows caused by welding concentrated stress:
Step 1: preparation of construction
A, surveying setting-out, repetition measurement is carried out to steel-column foundation (1) using theodolite and spirit level, measuring goes out the vertical of steel-column foundation (1) Cross central line;
B, component site acceptance, the component marched into the arena is checked, the size of component carries out repetition measurement and is identified;
Step 2: lower platform and component installation
A, lower prop I (2), lower prop II (3), lower prop III (4) are lifted successively, using theodolite and spirit level measure lower prop I (2), under Post II (3), the perpendicularity of lower prop III (4) and absolute altitude;
B, once grouting (17) is carried out after centering to lower prop I (2), lower prop II (3), lower prop III (4), grouting height control exists Away from steel-column foundation (1) upper surface about 200mm;
C, one layer of platform (5) of construction:
Construction transverse frame beam (9) and vertical Vierendeel girder (8):First installation transverse direction frame between lower prop I (2) and lower prop II (3) Set a roof beam in place (9), Vierendeel girder (21) is lifted to the bracket upper surface of steel column I (19) and steel column II (20) using crane gear, makes frame Set a roof beam in place (21) and steel column I (19) and steel column II (20) keep level, connecting plate I (22) is installed and high-strength bolt that both sides take (23), high-strength bolt (23), which need to pass through, just twists and twists eventually;
Vertical Vierendeel girder (8) is identical with the mode of installation transverse frame beam (9) with the connected mode of steel column (7);It is consequently, it is possible to perpendicular To Vierendeel girder (8), transverse frame beam (9) that lower prop I (2), lower prop II (3), lower prop III (4) connection is integral, connected mode is High-strength bolt (23) connects, and wouldn't weld;
Construct vertical platform secondary beam (10) and horizontal platform secondary beam (11):After girder I (26) and girder II (27) installation, utilize Crane gear lifting secondary beam (31), connecting plate II (28), installation bolt (29), then welded seam (30) are installed successively;The platform Interior other vertical platform secondary beams (10), horizontal platform secondary beam (11) mounting means are identical;
D, construct two-layer platform (6), the component mounting means same layer platform (5) in two-layer platform (6);
E, two-layer platform (6) starts to weld the component in one layer of platform (5) after installing;First soldering frame is set a roof beam in place (21) and steel column I (19), the beam upper end weld seam (24) of steel column II (20) connection, then welded grider lower end weld seam (25);
Step 3: upper brace and component installation
A, while Member Welding in one layer of platform (5), start that upper prop I (12), upper prop II (13), upper prop III are installed (14), and respectively with lower prop I (2), lower prop II (3), lower prop III (4) butt welding;
Component in three layers of platform (15), mounting means same layer platform (5) and two-layer platform (6) b, are installed;
C, after the component in three layers of platform (15) installs, then the Vierendeel girder (21) and steel column I in two-layer platform (6) are carried out (19), the welding of the beam upper end weld seam (24), beam lower end weld seam (25) of steel column II (20) connection, welding manner same layer platform (5) welding manner;
D, the component installation in four layers of platform (16) is carried out, mounting means is identical with last layer platform (5), then carries out three layers and put down Vierendeel girder (21) connecting welding work in platform (15);
E, Vierendeel girder (21) connecting welding work in four layers of platform (16) is finally carried out;
F, back-grouting (18) work is carried out to the suspension column of lower prop I (2), lower prop II (3), lower prop III (4).
2. a kind of steel-making tower steel structure platform according to claim 1 is staggered installation of welding method, it is characterized in that:Step Upper prop I (12) in rapid three, upper prop II (13), the installation centering of upper prop III (14) are with the lower prop in step 2, but perpendicularity is looked for It is with upper prop I (12), upper prop II (13), upper prop III (14) top center and lower prop I (2), lower prop II (3), lower prop III (4) on schedule Suspension column center respective value.
CN201710779990.7A 2017-09-01 2017-09-01 A kind of steel-making tower steel structure platform is staggered installation of welding method Active CN107419907B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110984637A (en) * 2019-12-09 2020-04-10 中国十七冶集团有限公司 Steel structure modular installation method for steelmaking oxygen lance valve station
CN112127477A (en) * 2020-10-30 2020-12-25 中国十七冶集团有限公司 Large-scale steel-making high-span solid-web type steel column and installation method thereof
CN114045370A (en) * 2021-10-29 2022-02-15 中国华冶科工集团有限公司 Method and device for quickly installing blast furnace body frame

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110984637A (en) * 2019-12-09 2020-04-10 中国十七冶集团有限公司 Steel structure modular installation method for steelmaking oxygen lance valve station
CN112127477A (en) * 2020-10-30 2020-12-25 中国十七冶集团有限公司 Large-scale steel-making high-span solid-web type steel column and installation method thereof
CN114045370A (en) * 2021-10-29 2022-02-15 中国华冶科工集团有限公司 Method and device for quickly installing blast furnace body frame

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