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8/10/2019 AWWA D100 Tension Table
1/1
WELDED CARBON STEEL TANKS FOR WATER STORAGE 21
Table 4 Material classes
Fy*
Class psi (MPa)
0 Fy< 27,000 (Fy< 186.2)
1 27,000 Fy34,000 (186.2 Fy234.4)
2 Fy> 34,000 (Fy> 234.4)
*Where Fyis the published minimum yield strength.
Table 5 Unit stressestension
Maximum Unit Stress
Item Class psi (MPa)
Plates in tank shell 1,2* 15,000 (103.4)
Structural steel, built-up structural members, structural details 0 12,000 (82.7)
1 15,000 (103.4)
2 18,000 (124.1)
Tension rings 1,2 15,000 (103.4)
Bolts and other nonupset threaded parts 15,000 (103.4)
Anchor bolts
Mild steel
ASTM A36 or ASTM F1554-36 15,000 (103.4)
ASTM F1554-55 (weldable) 18,750 (129.3)
High strength steel
ASTM A193-B7
11/4in. diameter 21/2in. 31,250 (215.5)
21/2in. < diameter 4 in. 28,750 (198.3)
ASTM F1554-105
11/4in. diameter 3 in. 31,250 (215.5)
Bracing rods with swedged (upset) or welded, enlarged stubends having threads with root area greater than the rod area
1 15,000 (103.4)
2 18,000 (124.1)Cast steel 11,250 (77.6)
*See exceptions in Sec. 4.5.
On area based on diameter at root of threads.
See Sec. 3.3.3.2 for additional requirements.
On area based on diameter at root of threads or an area of plain portion of rod, whichever is smaller.
Recommended