Torsion, Bending, and Warping Analysis of Rolled Steel Sections

• Main Authors: Yu-Ling Liu, 劉于綾
• Other Authors: Bor-Tsung Hsiao
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/00691868212869870936

碩士 === 國立中興大學 === 土木工程學系所 === 96 === Rolled steel section may be composed of several noncircular or rectangular segments. Most of previous studies centered on the analysis of computing as compared with few studies on torsion, bending, and warping analysis. Theory of torsion was employed to analyze the complex bending and warping in this study, individual torsion was considered as the theoretical formulas. Loads acted on each rolled steel sections included normal stress and shear stress was determined based on torsion and bending theory. Previous literatures for theory of torsion, bending, and warping analysis were reviewed and verified. Calculating for torsion and shear was done through the use of virtual work method, where "pure torsion effect" in stiffness of section was defined and considered to make use of virtual work. Calculating patterns among bending was concisely classified to determine the loads acted on x-axis and y-axis. Beams were worked by unsymmetrical bending, where are calculated from the flexure formula, and the definition of neutral axis are analogized as basic formula.