Palm trees in a high wind off the coast

Formulas

Hdeflection = (8EI / 15PDW)1/3

Hstress = (2SA / 3PW%)1/2

% = In / (I1 + I2 + I3 + I4)

Where

D - Deflection divisor


A - Allowable Stress, psi


E - Modulus of Elasticity, psi


H - Height of Opening, ft


W - Width of Opening, ft


P - Pressure, psf

Input Parameters

Min W, ft
Max W, ft
P, psf
Part #
I value in4
S value in3

If multiple shapes are selected, the curve will be based on the "weakest" shape.

*1. THESE WINDLOAD CHARTS ARE BASED UPON THE LESSER OF DEFLECTION RATIO (L/D) OR ALLOWABLE STRESS, A.

*2. THESE STRUCTURAL CURVES ARE ESTIMATES AND ARE PRESENTED TO THE BEST KNOWLEDGE OF THE WILLIAM L BONNELL COMPANY. IT IS HOWEVER THE RESPONSIBILITY OF THE CUSTOMER TO BE SATISFIED THAT THE CURVES ARE CORRECT. THE WILLIAM L BONNELL COMPANY MAY NOT BE HELD RESPONSIBLE IN ANY WAY FOR FAILURE OF PERFORMANCE RESULTING FROM THE USE OF THESE CURVES.