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原文传递 STRESS IN UNBONDED TENDONS FOR POST-TENSIONED CONCRETE GIRDERS- EVALUATION AND SUGGESTION FOR INCORPORATION INTO IRC 112-2011
题名: STRESS IN UNBONDED TENDONS FOR POST-TENSIONED CONCRETE GIRDERS- EVALUATION AND SUGGESTION FOR INCORPORATION INTO IRC 112-2011
正文语种: 英文
作者: R. MANISEKARI
作者单位: Principal Scientist, CSIR-Structural Engineering Research Centre, Chennai,
关键词: recommend;international;archer;expression;ultimate;research;stress;evaluation;deform;section
摘要: The analysis of concrete members with unbonded post-tensioning tendons is not a section dependent, and it is depending on the deformation of the whole member. Therefore, to calculate the flexural strength of concrete members with unbonded tendons, it is necessary to predict the stress in unbonded tendons at ultimate state, fps. Several researchers have developed equations of fps by empirical or analytical approach. This paper evaluate the equations of fps developed by researchers using published test data, and discussed. Also, referred the equations of fps recommended by international codes. It is suggested that the equation of stress in unbonded tendons fps needs to be incorporated into IRC: 112-2011 in the ACI form fps = fpe + fps in which the parameter fps may either be an empirical or analytical expression.
出版年: 2019
期刊名称: Indian Highways
卷: 47
期: 11
页码: 23-29
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