A Simplified Analytical Method for High-Rise Buildings

Abstract

High-rise buildings are constructed everywhere in the world. The height and size of highrise buildings get larger and larger. The structural design of high-rise buildings depends on dynamic analysis for winds and earthquakes. Since today performance of computer pro‐ gresses remarkably, almost structural designers use the software of computer for the struc‐ tural design of high-rise buildings. Hence, after that the structural plane and outline of highrise buildings are determined, the structural design of high-rise buildings which checks structural safety for the individual structural members is not necessary outstanding struc‐ tural ability by the use of structural software on the market. However, it is not exaggeration to say that the performance of high-rise buildings is almost determined in the preliminary design stages which work on multifaceted examinations of the structural form and outline. The structural designer is necessary to gap exactly the whole picture in this stage. The static and dynamic structural behaviors of high-rise buildings are governed by the distributions of transverse shear stiffness and bending stiffness per each storey. Therefore, in the prelimina‐ ry design stages of high-rise buildings a simple but accurate analytical method which re‐ flects easily the structural stiffness on the whole situation is more suitable than an analytical method which each structural member is indispensable to calculate such as FEM.