Investigation on the Suitability of Various Equations for Calculating Strength Using an Experimental Database for Reinforced Concrete Beams and Columns made Using Ultra-high Strength Materials

Abstract

Many apartments are increasingly being built as super high-rise reinforced concrete buildings, particularly in metropolitan areas, and thus the usage of ultra-high strength concrete and reinforcing bars is increasing. However, the existing design recommendations of public organizations are for concrete of compressive strength not exceeding 60 N/mm² and main reinforcements of SD390 or lower. In this study, a database which compiled experimental results of bending shear tests on reinforced concrete columns or beams using concrete of more than 60 N/mm² for compressive strength was constructed in order to investigate the suitability of several proposed equations for strength estimations.