Design Procedure

 

1. Start design by selecting a certain strut size such that it satisfies

  Design Procedure Подпись: Copyright © Marcel Dekker, Inc. All rights reserved.

where d is the least dimension of the cross section of the selected strut.

2. Calculate Euler’s critical buckling stress for column FCE as follows:

 

KcEE’ (le/d )2

 

F cE

 

where KcE = 0.3 for visually graded lumber (also used in form design)