State of the regarding stiffness modulus for reinforced concrete elements

Vlăduț-Ionel Iftode, Ioana Olteanu

Abstract


The paper aims a comparative synthesis of the values currently considered to affect the stiffness modulus of the reinforced concrete elements. Both national and international norms were considered, but reference research works is also presented. The article concludes with a case study that shows that there are behaviour differences for a reinforced concrete frame in the national and international codes.

Keywords


stiffness modulus, elasticity modulus, moment of inertia

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References


American Concrete Institute (ACI), Building code requirements for structural concrete (ACI 318-08) and commentary, January 2008, ISBN 978-0-87031-264-9

American Society of Civil Engineers (ASCE), Seismic rehabilitation of existing buildings, ASCE/SEI 41-06, 2007, ISBN 978-0-7844-0884-1

National standard of Canada, Design of concrete structures, CAN/CSA-A23.3-04, July 2007, ISBN 1-55397-559-6

Federal Emergency Management Agency, FEMA 356, Prestandard and commentary for the seismic rehabilitation of buildings, November 2000

Cod de proiectare a construcțiilor cu pereți structurali de beton armat, indicativ CR 2–1–1.1/2013

New Zeeland Standard, NZS 3101-1, English version, Concrete structures standard - The design of concrete structures, 2006, ISBN 1-86975-043-8

Cod de proiectare seismică – partea I – prevederi de proiectare pentru clădiri, indicativ P100-1, 2013 Design of reinforced concrete structures in seismic areas", Volume III, 2012


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