Page 270 - Pressure Vessel Design Manual

248 Pressure Vessel Design Manual

Table 4-17
Values of p

Soil Type Standard
ASCE 7-95 Major Oil Co ASME STS1 NBC Misc. Papers Gupta Compress
0.005
Unlined
Medium 0.01 See Table 4-18; See Note 1 and Lined=0.0048-0,0095 64.008 See Table 4-1 5; Default = 2%
0.001
=
0.004-0.0127 Table 4-19 See Note See Note 0.03-0.05 (0.02)
Rock/ 0.005
Piles

Equipment Description B
Vessels:
1. Empty without internals 0.0048
2. Empty with tray spacing > 5 ft. 0.0051
3. Empty with tray spacing 3-5ft 0.0056
4. Empty with tray spacing < 3ft 0.0064
5. Operating with tray spacing 5-8ft 0.01 16
I 6. Operating with tray spacing<5ft 0.01 27 I
7. Vessel full of liquid 0.01 8

Stacks mounted at grade 0.004-0.008

Table 4-19
Values of ps per ASME STS-1
Type of Stack
Rigid Support Elastic Support
Unlined 0.002 0.004
Lined 0.003 0.006

I 2. For lined and unlined stacks only!

Notes 6
B=-
2n
1.
3.

B, = from table I