Roof Purlin Design Spreadsheet

Design of purlin sizes is based on an analysis of bending members as a simple beam.

Roof purlin design spreadsheet.

Design of c purlins spreadsheet by admin 0. Visit our site now. This collection includes following spreadsheets under following categories geotechnical design structural r f concrete structural steel design detailing bridge design timber design structural dynamics wind load calculation and hydraulics and. Oct 31 lawrence bulanadi molina.

All spreadsheets that you can download are fully functional. The designis based on the maximum yeild strength mn fysx as stated in the aisc manual 13th ed. The roof support system is a ridgepole and either rafters which run perpendicular from the top of the walls to the ridge or purlins which run parallel to the ridge. Roof design structural steel.

This is a conservative approach as it provides for a large moment than that obtained by true engineering analysis. This spread sheet can only be used for load combinations with two variables. Kb pls check tabs at the flag for inappropriate may 10 this spreadsheet is to be used to check the adequacy of roof purlins for a specified combination of loads. The design of a puriin system known as multibeam mark 2 based on a cold formed steel sigma profile.

The length of the purlin from truss to the truss is taken as the span length needed for the single span simply supported beam formula. A common arrangement is a rafter and purlin system which combines purlins and rafters. This spreadsheet is to be used to check the adequacy of roof purlins for a specified combination of loads.