Curvature Ductility Design Method for RC Beam Section

• Main Authors: Chao-Lin Cheng, 鄭兆麟
• Other Authors: Chang-An Shih
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/07505361238882063286

碩士 === 華梵大學 === 建築學系碩士班 === 101 === This research established a flexural strength and curvature ductility design method for reinforced concrete (RC) beam section, designated as RCSD method. In RCSD method, a relationship between the position of neutral axis (c) and the curvature ductility ratio (μcr) was refined and used at first. And then, according a curvature ductility requirement it finds out a limited position of neutral axis, named cL. For RC beam section design, if c ≦ cL, the curvature ductility requirement will be satisfied. Following this design concept, it develops the RCSD method. The accuracy and applicability of the RCSD method was verified by designing 432 sections and comparing the required moment and ductility capacities with the provided moment and ductility capacities of the designed sections. It was found that the proposed design method has good control of moment and curvature ductility capacities of the RC beams designed. This is able to provide designers a tool for designing RC beam sections to fulfill both the flexural strength and designated curvature ductility ratio demands. The RCSD method is fairly simple and accurate. Consequently, sections designed according to RCSD method are provided economical. And, the RCSD method fairly well control on the ductility of designed sections.