Page 215 - Pressure Vessel Design Manual

Design of Vessel Supports 193

Lap welded Butt welded Pedestal Conical

-- L

D D
---T---
I I 4
L > I
I
I Small-diameter
T vessels only

E = 0.5 E = 0.7
slip band

Figure 3-69. Skirt types.

Type 2: With gussets
Type 1: Without gussets
R7-t
a,,,,, = 2 in.
arm" = 2 in.
c- E 11k in.
yL*
c,,,,. = 11k in
rto

Type 4: Top ring
&
Type 3: Chairs
Bolt Q + %in. Bolt d + 1 in.
Ship loose Washer
and attach
in field

5 in minimum bolt 6 + 1 in. 5 in. minimum Boll d + 1 in.
Figure 3-70. Base details of various types of skirt-supported vessels.