Impact of the Method of Analysing Post-Tensioned Flat Slabs on the Amount of Prestressing

[摘要] The post-tensioned slabs have been using for many years. Over the years, many guidelines regarding design methods and calculations have been issued. There are several methods of static analysis and obtained results interpretation. It should be noted that the selection of method has a large impact on the final results in terms of required amount of presstresing steel. It is a great importance for economic aspects of realization of the posttensioned slabs. In this paper the results of analysis of flat post-tensioned slab are presented. The calculations were carried out using two methods: the equivalent frame method and final elements method. The differences between these two methods and the impact of the selected method on the final usage of the prestressing steel are described in detail.

[发布机构] Cracow University of Technology, Warszawska 24 Street, Cracow; 31-155, Poland^1

[效力级别] 机械制造

[关键词] Design method;Economic aspects;Equivalent frame;Final elements;Flat slabs;Post tensioned;Post-tensioned slabs;Pre-stressing steels