The use of monolithic construction in building high-rise buildings in most cities have gained wide spread acceptance by scholars and practitioners in the building construction industry. The complexity of calculation of high-rise building requires search for better methodological approaches to construct such long lasting high-rise buildings. For this reason, technological advancement has made it possible to use computer-aided design (CAD) software package to design and undertake structural calculations. This book, therefore, is to make a computer modeling study of elastic and firm base multi-storey buildings and conduct feasibility studies of applying their computational schemes. This book made use of Complex Program (CP) Lira to design and calculate 18-storey residential buildings with basement. The book will be useful for professionals in the building and construction industry to investigates numerical characteristics of high rise buildings; determine the deformation and displacement of the floors; determine the membrane forces in the floors; analyze the bending moment effect on the floors; and analyze the compressive stress on the structural walls of modeled buildings.