| Everrich's Z purlin is suitable for all construction in which the spans are simply supported.
Everrich's Z purlin has two flanges, one broader, one narrower, two flanges proportioned so that two sections of the flanges broader, narrower bolted tightly together when either of them moves 180 degree . So, Z purlin suitable for lapping. Z sections having the same high but different thickness lapped in combination.
The better economy as a result of structural continuity. Lapping provides two thicknesses on inner support, Z purlin's strength being increased at these sections where bending moments are maximum, so the load capacity, rigidity of the system improved.
Single, shorter even two spans without lap can also use Z purlin. |
