The commentary for Chapter 3 of ASME BTH-1, found in Nonmandatory Appendix C, cites two papers written by Mr. Duerr that provide the technical basis for certain provisions of the standard.
The pinned connection design provisions in BTH-1 are quite different than those found in the more familiar AISC Specification. The more detailed BTH-1 provisions are appropriate, given the importance of pinned connections in lifting devices and the ways that pinned connections are detailed. The paper "Pinned Connection Strength and Behavior" provides details about the research that underlies these provisions in BTH-1. This paper is also referenced in the pinned connection paper in the list at left.
The elastic lateral-torsional buckling behavior of suspended beams differs from that of beams that are framed into a structure. This behavior must be accounted for in the design of lifting beams. The paper "Lateral-Torsional Buckling of Suspended I-Shape Lifting Beams" explains the derivation of the lateral-torsional buckling strength coefficient CLTB used in the BTH-1 beam design equations for I-shape beams.
A third paper, not referenced in BTH-1, "Lateral-Torsional Buckling of Suspended Tee-Shape and Flat Plate Lifting Beams" expands the material reported in the paper cited above to cover tee-shape and flat plate beams. This paper demonstrates the performance of the CLTB equations in BTH-1 for these types of beams.