Seismic response of steel fibre reinforced concrete beam–column joints

Abstract

ABSTRACT

A simplified finite element model for assessing steel fibre reinforced concrete structural performance

“…The structural configurations considered herein include a wide range of SFRC specimens ranging from simply-supported SFRC beams with no conventional reinforcement to more complex (statically indeterminate, consisting of more than one structural elements and subjected to a combination of axial and lateral loading) SFRC structural configurations fully reinforced. It should be pointed out that although some of the case studies are presented herein for the first time, others have formed the basis for parametric investigations carried out recently assessing the effect of the fibre-content on RC structural responses [14][15][16][17][18][19][20]. The reason for presenting all the cases in the present article is to show the objectivity of the numerical model employed.…”

“…The experimental studies were utilised for FE modelling validation purposes in the present study. Further FE-based parametric studies were carried out on both types of SFRC beam-column joints and the findings are discussed elsewhere [20].…”

Application of PP-ECC in beam–column joint connections of rigid-framed railway bridges to reduce transverse reinforcements

“…Previous researches [1][2][3][4][5][6] on steel fiber reinforced concrete (SFRC) have devoted significant effort studying the behavior of joints under reversed cyclic loadings, as well as on the development of design recommendations for ensuring sufficient ductile behavior in beam-column joint connections while reducing the transverse reinforcement. SFRC, as one type of the fiber reinforced concretes (FRCs), is characterized by a tensile strain softening behavior after reaching its first cracking strength.…”

Numerical simulation for seismic performance evaluation of fibre reinforced concrete beam–column sub-assemblages

“…It was brought out the validated numerical models can be used to improve the design technique for repair or retrofittment using such composites. Though few research works addressed the issues of numerical modelling of normal and fiber reinforced concrete [9][10][11][12][13][14][15][16][17], detailed discussion on methodology for numerical simulations of the performance of the critical reinforced concrete components such as beam-column joints using materials like FRC, under reverse cyclic loading, is very scanty and inadequate. Further, though importance of development and usage of new materials for construction activities have been increased dramatically, the research on material properties required for effective evaluation of cyclic response of the structural components made of fiber reinforced concrete is scarce.…”

“…Collapse mode due to the failure of beam longitudinal rebars was investigated. Numerical investigations on behaviour of steel fibre reinforced concrete beam-column joints were carried out by Abbas et al [15]. The joints were subjected to reverse cyclic loading and constant axial force was applied on the column.…”