Strut-and-tie models (STM), comprising of struts, ties, nodes and fans as the basic tools, provide the conceptual frame work for the analysis, design and detailing of shear critical and disturbed regions of the concrete structures. Due to inherent flexibility, several types of STM are possible to describe the different load-transfer-mechanisms. In the present study, the various idealization of strut component in Strut-and-Tie technique is presented. The struts modelling are compared for the compliance of countries code and their recommendation for the analysis and design are also discussed. Two examples available in literature are reanalyzed with more refined strut modeling and the results obtained from different code guidelines are compared. It is highlighted that there are substantial differences in the country code provisions to define the characteristics of an idealized STM and strut within a continuum of structural concrete and there is need to unify and to improve the codal provisions for a rational Strut-and-Tie modelling. To make the STM technique versatile tool for analysis and design, the structural elements may be designated based on the shear span- effective depth ratio (a/d), a governing factor for the development of load transfer mechanisms, arch action (a/d ≤ 1), arch- truss transition action (1 < a/d < 3) or truss action (a/d ≥ 3), for most appropriate STM model. The separate guidelines for efficiency factor of strut, transverse reinforcement to strut, and angle of strut may also be framed based on a/d ratio for different load transfer mechanism in the concrete structures.