Modeling Parameters for Nonlinear Behavior of Members and Verification of Non-ductile Reinforced Concrete Buildings

• Main Authors: SHENG-CHUN PENG, 彭勝均
• Other Authors: BING-CHANG LIN
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/77708947412884199622

碩士 === 中原大學 === 土木工程研究所 === 94 === A lot of old buildings were designed without based on seismic requirement, thus they had not enough ductile ability for the buildings. Such as, transverse reinforcement was 90° hook, or beam-column connection was lack of shear reinforcement, or longitudinal reinforcement was spliced, or transverse reinforcement spacing was too large in the plastic hinge region of members, or concrete strength was poor and cover depth was not enough etc. These made members become less ductile ability and without enough strength, and caused brittle easily. The purpose of this research is to establish more precise predictable method of the plastic rotation angle value. And then we can judge further while the ductile ability is good or bad. Thus we use different stress-strain model to analyze and evaluate the moment-curvature curve of reinforced concrete members. And we try to get the curve linearity with different method. And then use the experience formula of plastic rotation value and plastic hinge to calculate plastic hinge value. Further more, we simulate the plastic behavior of members. At the same time, we concern nonlinear pushover analysis of SAP2000 to evaluate the capacity curve of the buildings, and also Use the result make intersections of the demand spectrum and the capacity spectrum by ATC-40 suggested method to estimated the difference the seismic evaluation of old buildings in the different situations.