Structural use of timber. Recommendations for the calculation basis for span tables - Purlins supporting rafters Ingestion-build-225643 Creating the risk profile

Creating the risk profile

BS EN 1998-4 specifies principles and application rules for the seismic design of the structural aspects of facilities composed of above-ground and buried pipeline systems and of storage tanks of different types and uses

including that of:

hereinafter referred to as a “model pump”)

horizontal oval tanks (with the major axis horizontal) and rectangular tanks

Structural use of timber. Recommendations for the calculation basis for span tables - Purlins supporting rafters Ingestion-build-225643 Creating the risk profileBS 5268 7. 6: 1990 recommends a calculation basis for the permissible clear span of purlins used in traditional pitched roof construction, i. e. not including trussed rafter roofs. The method of calculation is for purlins formed from solid timber and supported by external or internal walls or by purlin struts. The major axis of the purlin is perpendicular to the rafter slope; other orientations of the purlin are not covered by this Section of BS 5268.