INTERACTION BETWEEN PRESTRESS SECONDARY MOMENTS, MOMENT REDISTRIBUTION, AND DUCTILITY: A TREATISE ON THE AUSTRALIAN CONCRETE CODES

摘要: The Australian concrete codes, NAASRA and AS3600, permit moment redistribution in prestressed structures for design at the strength ultimate limit state. Provided sections considered have sufficient ductility, redistributed any intermediate support is taken as a percentage of elastically determined factored negatives moment, including secondary prestress effects. magnitudes these allowable redistrubtions are directly related to ductility sections. There logical relationship between magnitude redistributions capacity relavant cross Conversely, rules ACI 318-89 shown be illogical. inclusion moments with other load has been subject considerable controversy, this paper illustrates, from designer's point view, that can present state they often beneficial.