ROD STRENGTH

ASD Allowable rod strength is calculated Per AISC 360 14th Edition as follows:

P (ASD) = 0.75 x Fu x Ag/2

Reference: Table 7.2 p.7-23, Table J3.2 p.16.1-120 &. J3-1 p.16.1-124

ROD GRADE

Most threaded rod is classified into 3 Grades:

  1. Grade A307– Also known as A36 & F1554G36

  2. Grade 55- Also known as F1554G55

  3. Grade B7- Also known as F1554G105

ROD INDENTIFICATION

Rods are specified in 1/8-inch increments.

Example1: R8-A307=1” Diameter Rod

Example 2: R4-A307= ½” Diameter Rod

ASD THREADED ROD

AUTOTIGHT THREADED ROD

  1. ASD Allowable rod strength is calculated Per AISC 360 14th Edition as follows: P (ASD) = 0.75 x Fu x Ag/2

  2. Rod elongation is calculated per AC391, 3.2.1.1 Using Net Area (An)

  3. Unified National Coarse (UNC). Rod is available from 3/8″ to 2″ diameter.