Usage of post-tensioned structures in Saint-Petersburg

Abstract

The study was commissioned by Finnmap Consulting Oy. The purpose of this thesis was to introduce the concept of post-tensioning, applications of post-tensioning, to study calculation stages and calculation programs for post-tensioning, to show the way of normal approval process and approval process for post-tensioned structures in Saint-Petersburg. The thesis should be of interest to design engineers working with designing of post-tensioned structures, which are going to be built in Saint-Petersburg. The first part of the thesis contains the post-tensioning definition, advantages of post-tensioning, post-tensioning systems, stages of post-tensioning and applications of post-tensioning. The second part includes the general information about calculation process according to Eurocode 2, stages of calculation process, calculation stages and rules in ADAPT-PT program and an example of calculation with this program. The thesis continues by the stages of normal approval process for design documentation in Saint-Petersburg. This part includes the required documentation, verification of documentation, results of state expert examination and the order of charging for state expert examination. The last part consists of the approval process for post-tensioned structures in Saint-Petersburg. This part consists of the procedure of development of special technical conditions, the procedure of approval process when special technical conditions are not required, the required documentation for approval process and the results of approval process. As a result of this project, the post-tensioning concept was found out. Also the calculation process for post-tensioned structures was described. Finally, the normal approval process and approval process for post-tensioned structures were described by stages.