Open AccessPRACTICAL METHOD OF FLEXURAL STRENGTH CALCULATION OF REINFORCED AND PRESTRESSED CONCRETE MEMBERS
Author(s) -
Vello Otsmaa,
Tiit Pedak
Publication year - 2007
Publication title -
technological and economic development of economy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.634
H-Index - 47
eISSN - 2029-4921
pISSN - 2029-4913
DOI - 10.3846/13928619.2007.9637817
Subject(s) - structural engineering , flexural strength , eurocode , compression (physics) , section (typography) , stress (linguistics) , symmetry (geometry) , materials science , computer science , mathematics , composite material , engineering , geometry , linguistics , philosophy , operating system
In this paper the flexural strength analysis of reinforced and prestressed concrete members with symmetrical cross‐sections loaded in the plane of symmetry is performed. A new practical method for determining the height of the compression zone is proposed. The method is valid for normal and high‐strength concretes and for different distributions of bars along the section. It is based on the assumptions, simplifications and material properties of Eurocode 2. Design equations have been developed for the rectangular stress distribution in the concrete compression zone and for the steel stress‐strain diagrams with a horizontal and inclined top branch. A numerical example is presented to show the method usage.