Purlins Z
The "Z"- and "C" (Zed and Cee) shaped sections of Kamaridis GlobalWire Group are accurately roll-formed via cold forming from high-strength zinc-alloy coated steel in order to provide an efficient, lightweight and cost efficient roofing, cladding and walling support system, for framed structures. (Purling and girt system).
| Purlin Type | Section Area | Warping Constant | ||||||
| Full Section Properties | Effective Section Properties | |||||||
| Second moment of area | Section modulus | Distortional buckling stress in bending | at service-ability | at yield stress | ||||
| Z | A | Iw | Ix' | Iy' | Wx'el | fod | Ix'eff | Wx'eff |
| mm2 | 106mm4 | 106mm4 | 106mm4 | mm3 | MPa | 106mm4 | mm3 | |
| Z 100 15 | 325,80 | 316,20 | 0,5235 | 0,1956 | 10,440 | 649,50 | 0,5235 | 8,172 |
| Z 100 20 | ||||||||
| Z 140 15 | 436,80 | 1.377,00 | 1,3730 | 0,4149 | 19.550 | 441,50 | 1,3190 | 13.410 |
| Z 140 20 | 577,50 | 1.716,00 | 1,7990 | 0,5363 | 25.710 | 622,10 | 1.7990 | 20.150 |
| Z 180 15 | 496,80 | 2.326,00 | 2,4590 | 0,4149 | 27.230 | 384,70 | 2,2990 | 17.630 |
| Z 180 20 | 657,50 | 2.992,00 | 3,2300 | 0,5364 | 35.850 | 537,60 | 3,1660 | 26.720 |
| Z 180 25 | 815,70 | 3.606,00 | 3,9760 | 0,6498 | 44.260 | 710,40 | 3,9760 | 35.420 |
| Z 210 20 | 720,60 | 4.318,00 | 4,6390 | 0,5492 | 44.220 | 525,00 | 4,4640 | 31.640 |
| Z 210 25 | 900,70 | 5.397,00 | 5,7980 | 0,6865 | 55.280 | 681,90 | 5,7170 | 46.620 |
| Z 210 30 | 1.074,00 | 6.254,00 | 6,8610 | 0,7987 | 65.650 | 860,00 | 6,8610 | 53.200 |
| Z 250 20 | ||||||||
| Z 250 25 | 1.068,00 | 12.670,00 | 9,8310 | 1,1510 | 78.520 | 467,90 | 9,5060 | 57.450 |
| Z 250 30 | 1.275,00 | 14.760,00 | 11,6600 | 1,3450 | 93.300 | 584,60 | 11,5000 | 72.390 |
| Z 300 20 | ||||||||
| Z 300 25 | 1.321,00 | 37.800,00 | 17,8500 | 2,4050 | 118.600 | 355,90 | 16,7400 | 78.170 |
| Z 300 30 | 1.578,00 | 44.320,00 | 21,2200 | 2,8280 | 141.300 | 442,50 | 20,5400 | 102.000 |
Material specifications - Standards
The "Z" and "C" shaped section structural elements are manufactured through cold forming procedure from zinc-alloy coated steel Zinc-hi-ten® which minimum yield stress is by 60% higher than the respective profiles formed through hot forming. This means that we can use sections of minimum thickness and weight, resulting in reduction of the time and the cost of the construction.
They are classified as "thin gauge member" profiles and the study as well as the analysis concerning their application is conducted according to the provisions of the European standard EN 1993-1.3: "Eurocode 3: Design of steel structures. Part 1.3: General rules. Supplementary rules for coldformed thin gauge member and sheeting"
Base Metal Thickness (BMT) 1,5mm - 2,0mm - 2,5mm - 3,0mm
Steel Quality: S320 (according to AS 1397-93) with guaranteed minimum yield stress of 320 mm2. (For further details, consult the section regarding the technical characteristics of the sheeting).
Dimensions and Technical Characteristics
Dimensions
The KAMARIDIS GLOBALWIRE GROUP OF COMPANIES "Z" and "C" shaped section are produced in standard dimension and length upon request from 2.000mm to 12.000mm according to the engineering design data. Are produced according to the desired hole punching with the following restriction:
- Minimum distance from the end section 35mm
- Minimum centre holes distance in perpendicular axe 65mm
| Hole and Bolt Specification (tighten all bolts to 5,5 Nm torque) |
||
| Nominal Section Size D (mm) |
Holes Diameter ( mm ) |
Bolt Specification |
| 100,140 | Φ 14 | M12-8,8 |
| 180,210 250,300 |
Φ 18 | M16-8,8 |
| all sections | Φ 12 | M10-4,6 |
Installation
The "Z" shaped sections structural elements of KAMARIDIS GLOBALWIRE SA feature two flanges of different width so that two elements with the same static height can overlap, fitting perfectly to each other. In this way, we achieve to bridge multiple spans with continuous purlins.
This purlin fixing method is called continuous and provides the advantage of practically doubling the purlin thickness at its fixing points, where bending moments and shear forces have maximum values, thus improving the load bearing capacity as well as the rigidity of the system.
The structural elements of "Z" profiles with the same static height but different thickness can be overlapped in any combination.
Other fixing methods:
A) Sleeve system
B) Freely supported continuous fixing
Dimensions
| Purlin Type | Section Thickness | Section Height | Radius | Mass per unit length |
Ζ Shaped | ||
| t | D | R | Kg/m | F | E | L | |
| mm | mm | mm | mm | mm | mm | ||
| Z 100 15 | 1,50 | 100 | 2 | 2,55 | 47 | 51 | 15 |
| Z 100 20 | 2,00 | 100 | 2 | 3,38 | 47 | 51 | 15 |
| Z 140 15 | 1,50 | 140 | 2 | 3,40 | 57 | 65 | 20 |
| Z 140 20 | 2,00 | 140 | 2 | 4,49 | 57 | 65 | 20 |
| Z 180 15 | 1,50 | 180 | 2 | 3,87 | 57 | 65 | 20 |
| Z 180 20 | 2,00 | 180 | 2 | 5,12 | 57 | 65 | 20 |
| Z 180 25 | 2,50 | 180 | 2 | 6,35 | 57 | 65 | 20 |
| Z 210 20 | 2,00 | 210 | 2 | 5,65 | 57 | 65 | 22 |
| Z 210 25 | 2,50 | 210 | 2 | 6,99 | 57 | 65 | 22 |
| Z 210 30 | 3,00 | 210 | 2 | 8,32 | 57 | 65 | 22 |
| Z 250 20 | 2,00 | 250 | 2 | 7,60 | 71 | 79 | 22 |
| Z 250 25 | 2,50 | 250 | 2 | 8,30 | 71 | 79 | 22 |
| Z 250 30 | 3,00 | 250 | 2 | 9,89 | 71 | 79 | 22 |
| Z 300 20 | 2,00 | 300 | 2 | 8,30 | 92 | 100 | 25 |
| Z 300 25 | 2,50 | 300 | 2 | 10,28 | 92 | 100 | 25 |
| Z 300 30 | 3,00 | 300 | 2 | 12,27 | 92 | 100 | 25 |
