Page 90 - Pressure Vessel Design Manual

General Design 71
CASE 2: DOUBLE BEAM

I
I Corrosion allowance
Specific gravity

I Liquid holdup (%) I

Packinglcatalyst unit weight

IVolurne of packing/catalyst I
1 Packinglcatalyst total weight

Entrained liquid weight
I Weight of liquid above bed I
I I I I Q herentiil pressure

Weight of grating

Weight of beam (est.)
I Miscellaneous

Total load, F =
Figure 2-44. Loading diagram of double-beam support. = -
F
Area of loading = 37% per beam. Uniform load, rr2

19, Figure 41
MOMENT AND REACTION CALCULATIONS
Total moment M = M1 + M2 + M3 I New
Total end reaction R = R1 + R2 + R3 Zr& = Fb Corroded I
Select beam and add appropriate correction allowance to web and flange