Structural system optimization of high rise building based on optimal topology

Determining the structural system is one of the important items in preliminary design of high-rise buildings. In conventional preliminary design, engineers often gain the design scheme which is concluded from a large amount of uncertain factors and is based on the experience, ingenuity and intuition.

In recent years, many studies have been conducted on the issues of optimal truss topology in designing structural systems such as horizontal truss systems and vertical truss systems, braced frames. The selection of minimum weight truss can be achieved by assuming zero lower bounds on cross section. Assuming the force method analysis formulation, the problem can be stated in a Linear Programming (LP) under certain assumptions. It is also possible to derive analytically some conditions related to optimal topology. This study will analyze the formulated truss structures for the possible applications in horizontal trusses and vertical trusses using Linear Programming satisfying stress, displacement, and side constraints.