ACT does not suggest any regulations for columns under torsion. However, by all means, the number of such columns used in steel and concrete structures is abundant. In this paper, using the results of laboratory tests on 35 square and rectangular columns with intermediate slender ratios, relations for determination of torsional strengths of reinforced concrete under axial compression have been ...

a subject of the investigation is the behavior of concrete and reinforced concrete columns under different loading conditions. the experimental study comprised a great number of tests on hinged - end columns with slenderness ratio within 35 and 155 subjected to both short and long - time loads applied at different eccentricities. the strength of concrete and the steel percentage varied in a wid...

This paper presents the development and experimental validation of a multi-hazard bridge pier concept, i.e., a bridge pier system capable of providing an adequate level of protection against collapse under seismic and blast loading. A multi-column pier-bent with concrete-filled steel tube (CFST) columns is the proposed concept, and the adequacy of this system is experimentally and analytically ...