Aisc 14th edition table 14.2 full#

If you wish to ignore the eccentricity when these codes allow for it make sure the Full Shear Ecc. This is because moment connections have the rotational restraint in the flanges, thus not allowing the rotation to occur that is typical in a simple shear connection.īoth the AISC and CSA codes give parameters when this eccentricity can be ignored for the Bolt Shear Strength check.

The shear tabs for moment connections do not consider any eccentricities, thus this section will not be included in these connections.

Generally the Elastic method is more conservative than the IC method.

Once this coefficient is computed it is used in the Bolt Shear Strength check.

The Ang value given is the angle between the X axis and the resultant load (resultant of the shear and axial loads).

The E y value given is the vertical distance between the centerline of the beam and the centroid of the bolt group.

The E x value given is the horizontal distance from the face of the supporting member to the centroid of the bolt group.

The IC method is used to compute the values in Tables 7-7 through 7-14, thus program values can be compared to these tables.

Aisc 14th edition table 14.2 manual#

Information on these methods are found on pages 7-6 through 7-9 in the AISC 14th edition manual and most steel design textbooks. These are given as options in Global Parameters - Solution tab.

To account for this eccentricity, the AISC 14th Edition Manual provides two different methods: the Instantaneous Center of Rotation method (IC method) and the Elastic Method. When bolt groups are subjected to shear loads that are eccentric to the centroid of the bolt group, then bolt group eccentricity is introduced. That is because the larger values are given directly in AISC specification table J3.2 without regard to bolt size. This was ignored for AISC even though it is unconservative. This is enforced for the CSA S16-09 and the CSA S16-14 codes, but is NOT enforced for the AISC codes. Bolts up to an inch in diameter have a strength of 120 ksi, larger bolts have a strength of 105 ksi. When bolts are designated with a material property of A325, the bolt strength in the ASTM varies based on the bolt diameter. The material properties of metric bolts are not exactly equal to the imperial ASTM with the same designation as there is as much as a 0.5% difference between 120 or 150 ksi used in the imperial ASTMs and the 830 or 1035 MPa used in the metric ones. Metric bolt sizes are only available when using A325M or A490M. The following ASTM bolt material designations are available in RISAConnection: These bolts checks are common to many different connection types.