Design of Timber Purlins

REFERENCE

PARTICULARS

OUTPUT

PROPOSED SAKAAZA'S RESIDENCE IN KYANJA DESIGN OF THE TIMBER PURLINS Design Assumptions and Details;    

Angle of inclination of the roof to horizontal is 4 75x50mm Pine Timber Purlins 2 Iron Sheets as Roof Covering (weight = 4.8kg/m ) No wind wind load considered because roof is surrounded by parapet wall  

Note: The Note: The Design output is to determine the span of purlins that shall prevent ultimate failure of purlins and to limit excessive deflection. deflection. Eurocode 5 (ENV 1995-1-1)

Timber properties Timber properties Pine; Strength Class

C14/ SG4

Grade Stresses

       

                

           

    

        

        



Loading; Permanent Load Due to; 1.

Corrugated Iron Sheets, Fsheets:  

2.

     

        

Purlins, Fpurlins:  

    

      

Total Permanent Load        

Variable Load; For Roof without access, Live load    Hence,                      Eurocode 5 (ENV 1995-1-1)

Design Load, Fd;                        