
Q235 / Q345 Workshop Steel Structure Metal Structure Buildings Environmentally Friendly
1. Strictly control the welding position of the relative position of size , welding pass behind the prospective;
2. Reasonablly selection of welding parameters and order to prevent crack;
3. Electrode required drying, welding area need to clean up, welding process, together with the appropriate welding current, decrease of welding speed, gas completely escape , prevent the formation of weld porosity;
4. When continuously multi-layer welding, each weld layer after cleaning, prevent the formation of slag;
5. Selection for current, avoid arc pull too long, control electrode angle and arc method, avoid the generation of undercut.
Attached: welding process parameters
welding process parameters
Materals(mm) | Electrode diameter (mm) | Welding current(A) | Welding voltage(V) | Welding speed(m/min) |
<10 | Ø3.2 | 200-250 | 30-38 | 0.2-0.3 |
10-20 | Ø4.0 | 200-250 | 30-38 | 0.15-0.25 |
>30 | Ø4.0 | 320-350 | 30-38 | 0.3-0.5 |
" Steel Design Code" (GB50017-2003)
" Cold-formed steel structure technical specifications" (GB50018-2002)
" Construction Quality Acceptance of Steel" (GB50205-2001)
" Technical Specification for welded steel structure" (JGJ81-2002, J218-2002)
" Technical Specification for Steel Structures of Tall Buildings" (JGJ99-9)
1. Steel structure welding requirements
Engaged in welding of steel structure work welders must pass the examination and obtain a certificate. The holder welder must welding in its passing the examination and approval within the scope of the project.
2. Fastener connection requirements
Steel structure fabrication and installation of units should be in accordance with the provisions of the high strength bolts respectively connected with friction surface of the anti slip coefficient test and retest, component friction surface site should be dealt with separately anti slip coefficient test, the results should be consistent with design requirements.
3. Steel structure assembly and installation of steel structure requirements
(1) of H type steel welding seam splicing spacing and the web of the seam shall not be less than 200 mm.
(2) and crane beam crane truss installation in place should not be deflection.
(3) multi section column installation, each column positioning ground control axis should lead directly, not from the axis of lower column guide, avoid too large error accumulation.
(4) the steel grid structure after the completion of the total spell and roofing project should be finished respectively to measure the deflection, the deflection and the measured value of 1.15 times can't exceed the design value.
(5) coating, coating times, coating thickness shall comply with the design requirements.
(6) the thickness of coating coated thin type fireproof coating shall conform to the requirements of design about the fireproof limit.
4. Electric single girder crane technical parameters
LD - type A electric single girder bridge crane and CD1, MD1 type electric hoist necessary use, become a light rail running a small crane.
This product is a general purpose crane, for mechanical manufacturing, assembly workshop and warehouse and other places.
As with Motor Grab spreader, is handling and transportation of bulk goods. This product is suitable for lifting weight 1, 2, 3, 5, 10 tons, 22.5 meters span 7.5-.
The crane control mode with the ground (divided into wired and wireless two), control room control, for users to select.
This product is not flammable, explosive in the medium or large humidity with acid, alkali gases places of work, is not suitable for lifting and transporting molten metal, toxic and flammable work.
This product series is a series of products of electric single girder crane adopts the international advanced standard manufacturing. The machine has the advantages of novel structure, good technology, operation is flexible and stable, safe and reliable.
1. Dimension :Length , width, height, eave height , roof pitch .
2. Doors and windows :dimension , quantity , where to put them.
3. Local climate : Wind speed , snow load ,etc
4. insulation material :sandwich panel or steel sheet
5. Crane beam :Do you need crane beam &tons? inside the steel structure or outside ?
6. Is there any materials that are not allowed to imported into the country where the structure is planning to use ?
7. What is the founctions of the workshop? we must consider the wind and lighting inside.
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Shenyang iBeehive Technology Co., LTD.
iBeehive ENTERPRISE GROUP is one large and diversified private corporation, consisting of Liaoning iBeehive Construction Material Technology Co., LTD., Shenyang iBeehive Steel Structure Engineering Co., Ltd., Liaoning iBeehive Metal Structure Products Co. Ltd., and specializing in the consulting, design, production and construction of steel structure parts and color-coated steel plates. The products and services we can provide contain light portal steel frame, industrial workshop of heavy crane work, civil steel structure with multilayer frame, superhigh&outsize steel structure, non-standard structure parts, spheronization of less than O.D.200mm and sandblasting and tempering of structure parts, etc. The factory covers an area of 100000m2, including a construction area of 60000 ㎡ and a workshop of single largest span (24X4+21X2+15X1 )m, the length of 240m and height 18m, and the lifting capacity of 100 tons. We have more than 380 employees and an annual output of 40 thousand tons of steel construction. Since 2009, our yearly output value has reached 250 million RMB. Since its establishment in 2000, with the outstanding development experience of more than ten years, our operation Headquarters and production bases are located in China's equipment manufacturing base - New Tiexi District of Shenyang.
iBeehive ENTERPRISE GROUP, by virtue of regional advantage of the Northeast Old Industrial Base, has a large number of outstanding professionals making and executing strict standards for the quality of the products.
Excellent projects of iBeehive Enterprise mainly comprise New World Exhibition Center as a landmark, NHI, Shenyang JFMMRI Industrial Park, SMTCL, TBEA in Shenyang area, and others in other areas. And iBeehive always keeps good partnership with Chinese Metallurgical Group, China construction group, Chinese railway construction group, China Power Investment Group, Shanghai Baosteel, Shanghai General Steel Structure, Zhejiang Hengda Group, Zhejiang Seiko steel, Anhui Fuhuang steel construction group, Hubei Yangtze River and other large construction groups. To seek a breakthrough, in 2008 iBeehive extended business to special-shape and heavy rivet-solder products market, and succeeds in the industries of mining and metallurgical equipment, shield machine, railway bridges and other large projects at home and abroad.
With strong business strength, the integrity of the service concept, and awareness of social responsibility, iBeehive enterprise has widely been recognized by the government, industry, and society. iBeehive has always insisted on obtaining reputation and market by quality and nice products, the perfect combination of the first-class talent and first-class equipment is committed to becoming the R & D center of high-end steel structure industry.
Our enterprise principle is "quality first, sincere service; excelsior, mutual benefit and win-win" as business philosophy, we firmly believe that enterprise will be even more brilliant!