Materials Nonlinear Behavior of the Thin-Walled Rectangle Beam Considering Two Way Moment

• Main Authors: Ching-Yin Chen, 陳清尹
• Other Authors: Shyh-Rong Kuo
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/93107535427373472378

碩士 === 國立臺灣海洋大學 === 河海工程學系 === 95 === Abstract The purpose of this research in talk about the material nonlinear behavior of bearing two-way moment thin-walled rectangle beam shaft, that mainly bring a obviously energy function in approximate the relationship between two-way moment section and two-way curvature, and obtain angle variation of the end in bearing two-way moment beam shaft by that. It include five parts：(1) To infer the relationship between two-way moment of thin-walled rectangle beam section and two-way curvature with Quasi-Plastic-Hinge Approach. (2) Through thin-walled rectangle beam section relative equation among stress and strain in elastic and secondary plastic zone to find out energy equation both these two zones section accept two-way moment. (3) Using known energy equation of boundary in primary plastic, gaining the obviously approximate energy equation of thin-walled rectangle beam section in primary plastic zone. By the energy equation transmitting approximate relation between two-way moment and two-way curvature in primary plastic zone, then compare them by correct solution. (4) Rely on this approximate energy equation to get the end angle variation when beam shaft bearing two-way moment, and compare difference between them with correct solution. (5) Finally, using energy approximate solution to proceeding actual example analysis, conferred the end angle variation and toughness ratio of material nonlinear beam shaft bearing two-way moment.