What CL6-3a stands for the steel structure of the roof purlin
The inner support component of the steel structure is made of high strength galvanized steel sheet, which is rolled into C and Z steel by precision machining.
6, the general first classification is according to specifications, may be more than 6 specifications, such as: H200*100*8*4 and other models of different types of steel, there are 6. But I estimate that here may indicate the installation location number, which may be used for the third span.3 here, I estimate the representative specifications, may also be the serial number, that is, the third rootA may represent third specifications, there may be several special-shaped, such as some brackets, and some do not have, or because of contact is not the same, may be different forms of nodes.
Purlin in slope roof often used in roof or inclined beam, coupled with its shop on the rail and the waterproof layer, as a downstream component attachment. The modern steel structure building commonly used C/Z steel, Z steel for building a better bearing capacity of purlin.
The steel structure of the roof purlin CL6-3a: type C purlin thin-walled cold-formed steel, a span of 6 meters.1, CL:C type steel purlin.2 and 6: span is 6 meters.3, commonly used labeling methods: such as the middle number 1, end cross mark 2, expansion joint number 3.4, a and 3 symmetrical angle.
