New Equations and Table for Design of Eccentrically Loaded WT Compression Members

Abstract

Equations and a design table are developed to determine the available axial compressive strength of eccentrically loaded WT shapes with F_y = 50 ksi using both the LRFD and ASD methods. WTs considered are made from W-shapes ordinarily used as columns. Tabulated values account for the bending moment created in the member due to the load eccentricity, including second-order effects, and follow the provisions of Section H1.1 of the AISC Specification for Structural Steel Buildings (2022) for design of members subject to combined forces. Applicable limit states and cross-section classifications are considered in the development of the equations and the design table. Numerical example problems are presented.