Fysical-engineering model of reinforced concrete frames in compression

Blaauwendraad, J.

Fysical-engineering model of reinforced concrete frames in compression

Title

Fysical-engineering model of reinforced concrete frames in compression

Author

Blaauwendraad, J.

Corporate name

Rijkswaterstaat

Date

1973-01-01

Abstract

A calculation of the complementary moments due to second-order effects and the analysis of the stability of reinforced concrete framed structures can be conceived as follows. With the aid of a computer a very large number of M-N-x diagrams can be produced on the basis of the standard specified stress-strain diagrams for concrete and steel. A framed structure is then analysed with an available program which takes account of second-order effects. The flexural stiffnesses EI to be adopted are estimated and corrected with reference to the M-N-x diagrams calculated once before and held in store for the purpose. The present paper discusses the drawbacks ofthis approach and proposes a method of analysis which can be fitted into existing programs for framed structures and dispenses with the large number of stored M-N-x diagrams. It is shown that direct use can be made of the stress-strain diagrams. The results are just as reliable as those obtained by the procedure utilising the M-N-/( diagrams. The method can be applied to total frames and single members in compression as well.

Subject

second-order effect
stability
stress-strain relation

Classification

TPL00

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http://resolver.tudelft.nl/uuid:bc6657a6-1c77-4c03-9f81-da8791fb8e01

Publisher

Rijkswaterstaat

Source

Rijkswaterstaat Communications No. 15

Part of collection

Hydraulic Engineering Reports