may be realized in a variety of structural materials such as a reinforced concrete post tensioned concrete and steel framing with concrete on steel deck floors among others the choice of structural material is dependent on the scale and dimensions of the structure and associated requirements the use of the terminology u2018 cantilever walls u2019 refers to the wall positions where a structural concrete cantilever or steel truss cantilever may be placed as shown in fig3 alternative pairs of floors e g f 30 f 32 have nearly aligned cantilever walls e g w 30 w 32 respectively for each floor e g f 30 walls for that floor e g w 30 along with walls for the floor below that floor e g w 31 together support the floor e g f 30 as further shown in fig4 the cantilever walls w 30 a w 31 w 30 b are subject to shear forces and cantilever bending forces by virtue of gravity and their attachment to central core c 30 and floor f 30 the walls w 30 a w 30 b support floor f 30 from above as shown the weight of the floor is transferred to the core as shear force the geometry of the load path results in cantilever bending forces since floor f 30 is attached to the.