Analysis of lightweight composite sections with reinforced concrete infill with autoclaved aerated concrete (AAC)

The development of composite sections is great importance in structural design, with the aim reducing weight and deflection while limiting effect on section’s strength durability. This paper examines computational analysis where reinforced concrete was replaced autoclaved aerated (AAC) compression zone. first principles combined Hook’s law were adopted to find a flexure, shear, equivalent modulus elasticity, effective moment inertia, deflection. results are discussed investigated using finite element models developed by ANSYS WORKBENCH software. We found that proposed analytical model can effectively provide solution for cross-section. comparison between theoretical calculation cracking loads percentage ranges from 89 110%. ratio elasticity ranged 0.91 1.06. inertia 92% 118%. 0.87 1.15.