| Customization: | Available |
|---|---|
| After-sales Service: | Installation Instruction in Drawings or Videos |
| Connection Form: | Bolt Connection and Welded Connection |
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Often office accommodation sits within a steel portal frame structure that utilises the use of a mezzanine floor.
These frames are usually fabricated from UB sections with a large eaves haunch section cut from a fabricated plate or rolled section. 25 to 35 m are the most effective and common spans.
In the case where a travelling crane of up to 20 tonnes is required, brackets can be attached to the columns of the frame to support the crane rails. By using a tie member or rigid column base, this reduces the eaves deflection.
The horizontal movement of the eaves present in a tied portal frame along with bending motions in the columns are significantly reduced. Tie portal frames can be highly effective in limiting the spreading of a crane-supported structure.
Mono-pitch portal frames are generally used for small spans and because of their proximity to other buildings in the area. As a simplistic variation of the pitched roof portal frame, these frames tend to be ideal for smaller constructions of up to 15m span.
In the case where the span of the portal frame is larger than usual and you don't have to provide a clear span, a propped portal frame is suitable. This reduces the size of the rafters along with the horizontal shear present at foundation level.
Mansard portal frames are generally chosen in the case of large and clear height mid-spans where the eaves height of a building is minimised in comparison.
Portal frames can be constructed with curved rafters which are implemented generally for architectural reasons. Due to transport limitations however, rafters that are longer than 20m usually require splices.
Rafters can be fabricated using cellular beams and this is usually the case for aesthetics. However, they may also be preferred for long spans and where transportation is limited which imposes a requirement for the use of splices. They should be carefully detailed in order to preserve their architectural features and be of an elastic design.
| Item | Materials | Remark |
| Steel Frame | 1 H section column and beam | Q235B steel, painted |
| 2 Wind resistant column | Q235B steel, painted | |
| 3 Roof purline | Q235B C or Z section galvanized steel | |
| 4 Wall purline | Q235B C section galvanized steel | |
| Supporting System | 1 Tie rod | Q235 round steel pipe |
| 2 Knee brace | angle steel L50*4,Q235 | |
| 3 Roof horizontal bracing | φ20,Q235B steel bar, painted or galvanized | |
| 4 Column vertical bracing | φ20,Q235B steel bar, painted or galvanized | |
| 5 Purline brace | Φ12 round bar Q235 | |
| 6 Knee brace | angle steel, L50*4,Q235 | |
| 7 Casing pipe | φ32*2.0,Q235 steel pipe | |
| 8 Gable angle steel | M24 Q235B | |
| Roof and Wall | 1 Wall and roof panel | corrugated steel sheet / sandwich panel |
| Door and Windows | 1 Window | PVC or Aluminium Alloy Window |
| 2 Door | Rolling or Sliding door | |
| Protecting system | 1 Self tapping screw | galvanized |
| 2 Ridge tile | color steel sheet | |
| 3 Gutter | color steel sheet/galvanized steel/stainless steel | |
| 4 down pipe | PP | |
| 5 corner trim | steel sheet in customized color | |
| Fastener system | 1 Anchor bolts | Q235 steel, galvanized |
| 2 Bolts | galvanized | |
| 3 Nuts | galvanized |
Why Choose Us?
1.Quality Assurance: We use high-quality raw materials that you can compare with any other manufacturers.
2. High-tech Manufacturing:
We have the most advanced equipment which can make the production in high quality and efficiency.
3. We have an experienced professional team, including designers, engineers, architects, etc.
We are ready to solve any problems you may have.
4. After-sales service:
We can provide installation videos or detailed installation instructions.
If you need, We could arrange an engineer to guide you in person.
we could also arrange a skilled team to install the building on site. (The cost should be discussed)
5. Experienced trading team:
Our sales representatives have many years of experience in steel structure trade. We have done lots of projects home and abroad.
We are not the biggest, we are the best.
Advanced Equipment In use
Q: Is your company a factory or a trader?
A: We are an integrated industry and trade company. You are welcomed to visiting our factory. The quality control flow and sales team will show you our professionalism.
Q: Whats the quality assurance you provided and how do you control quality?
A: There is a procedure to check products at all stages of the manufacturing process - raw materials, in process materials, validated or tested materials, finished goods, etc. SGS, BV and other testing are available for us.
Q: Can you offer designing service?
A: Yes, we have more than 20 experienced designers. We could design full solution drawings as per your requirements. By using AutoCAD, PKPM, MTS, 3D3S, Tekla Structures (X steel) etc, we can design complex industrial building like office mansion, super market, plants, shipping mall, 5 stars hotel, etc. One-stop service is our outstanding superiority.
Q: How about the delivery time?
A: The specific production time depends on the quantity of goods. Normally, it is about 10 to 30 days after all the details are confirmed and receiving the deposit. The delivery of Large order should be discussed with the management department in advance and then confirm the timing with you accordingly. Usually, large order will be delivered in batches.
Q: What about the installation instrucions?
A: We will provide you installation videos and detailed installation instructions or online technical guidance. If you need, we can provide the service of installation guidance arrange a team to do the installation on site by extra.
Q: How about the payment?
A: All payment methods are acceptable. We prefer to 30% down payment by T/T, 70% balance before shipment.
If you have the design drawing, we could make the budget according to your design.
If you could advise the following parameters so that we could make the design and quotation accordingly.
| 1. Location (where will be built? ) | _____ country, area |
| 2. Size: | _____ mm(L) * _____mm(W) * _____mm(H) |
| 3. Live load on roof | _____ kn/m2, |
| 4. Wind load (max. Wind speed) | _____ kn/m2, or _____km/h, or_____m/s |
| 5. Snow load (max. Snow height) | _____ kn/m2, or _____mm |
| 6. Anti-earthquake | _____ level |
| 7. usage of the building: | |
| 8. Brickwall needed or not | if yes, 1.2m or 1.5m in height |
| 9. Thermal insulation | if yes, EPS, fiberglass wool, rockwool, PU sandwich panels, Corrugated steel sheet with fiber glass wool will be suggested; If not, the Corrugated steel sheet will be ok. The cost of the latter will be much lower than that of the former. |
| 10. Door quantity & size | _____ units, _____(width)mm*_____(height)mm |
| 11. Window quanity & size | _____ units, _____(width)mm*_____(height)mm |
| 12. Crane needed or not | If yes, _____units, max. Lifting weight____tons; Max. Lifting height _____m |
| 13. Others | Skylight belt, ventilator and any other accessories if needed. |
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