Z & C PURLINS

ALFAA secondary structural members i.e., purlins girts & eve struts are used to support the wall and roof panels.

Purlins are used on the roof, girts are used on the walls and eve struts at the intersection of side walls and roofs. Secondary structural members are designed in accordance with the American Iron and Steel Institute (AISI) then cold formed design manual.

ALFAA sections may be used over single spans unlapped continuously and lapped continuous span in multi-bay buildings.

Standard Finishes
  • Red Oxide
  • Galvanized
Steel Grade, Material Specification & FINISH
ALFAA Zed & CEE Purlins with punching
IS 513/IS 277/IS 10748/IS 1079
G240 MPA/G340 MPA/G550 MPA, Z 120 GSM/Z 275 GSM & Z 180 GSM
G indicates Yield Strength in MPA & Z indicates Coating Mass in G/M2

Mill finish / Red Oxide Primer / Pre Galvanized


ALFAA sections may be used over single spans unlapped continuous and lapped continuous span in multi bay buildings.


ALFAA Z and C purlins are available in two Standard Finishes i.e., Red Oxide, Galvanized

Thickness
1.5mm to 3.5mm
Accessories
  • Sleeves
  • Cleats
  • Sag rods
Application

1)   Industrial Buildings, Sheds, Warehouses
2)   Where strong reliable steel framing is required
3)   Railway Structural Projects
4)   Telecommunication Tower
4)   Sub Station Structures

6)   Transmission Line Towers
7)   Solar power projects
8)   Hanger
9)   Indoor Statium
10) Commercial Buildings

Advantages

Economy

  1. Savings in steel consumption upto 50% and savings in cost upto 30%
  2. Savings of transportation & handling, erection and fabrication costs
  3. No wastages, No surplus left-overs, since sections are supplied in exact required lengths

Design

  1. High strength, section versatility & wide range of choice
  2. Having their shear centre within the section, less liable to twist
  3. Permit increased truss-spacings & larger bay centres thus reducing foundation costs and overall weight of the structure
  4. Sleeve system to exploit continuity concept for larger spans
  5. Empirical design rules apply, hence no design problems
  6. Excellent surface finish
  7. Less weight per unit length compared to conventional section without sacrificing the required structural efficiency
  8. Conforming to the requirements of IS-801, IS-811

Practical Advantages

  1. Ability to rotate 180 degrees and fit together
  2. A full range of fixing accessories is supplied. Therefore no extra material needs be procured
  3. Sections supplied are pre-painted hence prevents corrosion and promotes long life
  4. Sections are pre-engineered, pre-punched and with complete accessories. No further fabrication required. Considerable savings in erection costs and time.
Typical Connections
Typical Connections
Holes & Cleats / Standard Holes For ZED & CEE Sections
Holes & Cleats
Standard Hole for Zed section
Standard Hole for CEE Sections
Load Chart Tobe Added

Wind load = 150 kg/cm,2 fy=240n/mm2
Yield stress of zincalume sheet = 5500 kg/cm2
Yield stress of a.c sheet & colour coated = 2400 kg/cm2
Slope 10 deg to 14 deg

SPAN
As Sheet Roofing
Colour Coated Roofings
Zincalume Roofing
Sag Rods
IN MM (AT 1.4 M) (AT 1.60 M) (AT 1.80 M) (AT 1.4 M)
4.5 Z180 X 2.0 Z180 X 2.0 Z180 X 2.0 NIL
5.0 Z180 X 2.0 Z180 X 2.0 Z180 X 2.0 NIL
5.5 Z200 X 2.0 Z200 X 2.0 Z200 X 2.0 NIL
6.0 Z200 x 2.3 Z200 X 2.3 Z200 X 2.3 1 NO
6.5 Z200 x 2.3 Z230 x 2.0 Z230 x 2.0 1 NO
7.0 Z230 x 2.3 Z230 x 2.5 Z230 x 2.3 1 NO
7.5 Z230 x 2.5 Z230 x 2.5 Z230 x 2.5 1 NO
8.0 Z250 x 2.3 Z250 x 2.3 Z250 x 2.3 2 NO
8.5 Z250 x 2.5 Z250 x 2.5 Z250 x 2.5 2 NO
9.0 Z250 x 2.5 Z250 x 2.5 Z250 x 2.5 2 NO
Technical specifiactions of ‘z’ and ‘c’
Purlin DEPTH ‘D’ Thickness (t) Mass (Kg/M) Zed Purlin Cee Purlin
F
L
F
L
100 1.80          
120 2.20          
150 1.50          
160 2.00 4.82 60 20 60 20
160 2.30 5.54 60 20 60 20
160 2.55 6.15 60 20 60 20
180            
200 2.00 5.44 60 20 60 20
200 2.30 6.27 60 20 60 20
200 2.55 6.95 60 20 60 20
230 2.00 5.92 60 20 60 20
230 2.30 6.87 60 20 60 20
230 2.55 7.55 60 20 60 20
250 2.00 6.23 60 20 60 20
250 2.30 7.17 60 20 60 20
250 2.55 7.95 60 20 60 20
300 3.00          
HANDLING AND STORAGE
  • Purlin requires appropriate care during storage on site
  • The period between delivery and installation to be minimized
  • Purlin should be neatly stacked on a ground on a slight slope so that water can drain out
  • On open site condition purlins should be protected with water proof covers and condensation
  • In case if the bundle of purlins becomes wet , seprate the purlins and wipe & dry it

HR C purlins

Alfa Roofing also does HR C Purlins Manufacturing which will change the style of roofing systems. While Manufacturing HR C purlins in Bangalore our design engineers will take utmost interest on the precision and the production team ensures the best quality production. There is a huge potential to serve the infrastructure development projects underway all across the country. HR C purlins Manufactures in India are preferred to give importance to the Local manufacturers and to recongize them.

PEBINDIA.NET
ALFA Steel Building Solutions pre-
engineered buildings are custom-
designed to meet More info..
DECKINGSHEETS.COM
Trapezoidal Metal Profile sheets
with strong and reliable shear bond performance More info..
SANDWICHPANELS.IN
Sandwich elements have become
essential in the construction industry.
They are More info..
Metal Roofing Sheets
Lorem Ipsum is simply dummy text
of the printing and typesetting
industry. More info..
Turbo Ventilators.IN
Lorem Ipsum is simply dummy text
of the printing and typesetting
industry. More info..
© Copyrights All Rights Reserved