ESDEP LECTURE NOTE [WG14]

ULTIMATE LOAD TABLES

INTRODUCTION

The following load tables have been prepared to assist the designer in specifying cold formed sections.

The tabulated values are only valid for use with the fixing details and recommendations proposed by the manufacturer.

This information has been prepared as a supplement to the main handbook for ease of reference in the design office.

USE OF TABLES

The load tables show the ultimate load for double span sections in terms of a UDL per span.
Section self weight has not been subtracted in the loads shown.
Loadings have also been tabulated that will produce the noted deflection ratio.
Loads shown assume lateral restraint to the top flange of the section and that the beams are fixed in accordance with manufacturers instructions.
Ultimate reversal loads may be obtained by multiplying the loads shown by a factor of 0,8.
Interpolation of the ultimate loads shown is permissible on a linear basis.

Note: These values are typical and should not be used in design.

LOAD FACTORS

Loading	Factor
Dead load	1,4
Dead load restraining uplift or overturning	1,0
Dead load acting with wind and imposed loads combined	1,2
Imposed load	1,6
Imposed load acting with wind load	1,2
Wind load	1,4
Wind load acting with imposed load	1,2
Forces due to temperature	1,2

PURLINS

Figure 11. Ultimate load tables for purlins