Chapter 1 describes an outline of an earthquake resistant design for high-rise reinforced concrete frame buildings. It is mentioned that displacement response should be the most important thing for earthquake resistant design of high rise buildings.
In chapter 2, nonlinear displacement response of reinforced concrete structure is investigated by a parametric study of SDOF system. The results show the nonlinear displacement response of the high-rise reinforced concrete buildings would be less than the spectral value with 2% damping. This is "the constant displacement response rule".
Chapter 3 investigates seismic shear load distribution considering higher mode contribution for multi-story buildings to avoid drift concentration. The seismic shear load is consisted with the base shear coefficient and seismic coefficient distribution. The base shear coefficient is established from the design response spectrum and the design criteria such as story drift limitation and allowable ductility factors of structural members. The seismic coefficient distribution obtained by the SRSS method using the elastic mode shapes is proposed after investigation of the time-invariable oscillatory mode shapes of the buildings designed with the appropriate story shear strength distribution. The results of response analyses show if the seismic coefficient distribution with disregard to higher mode effect is used for design, it leads to the drift concentration. The story shear strength should be within 1.2 times of the design shear force distribution to avoid the drift concentration caused by the discontinuous distribution.
Using these results, chapter 4 proposes the outline of primary design method and the method to estimate response values.
Chapter 5 shows the applications of this method to multistory buildings. In-story displacement responses during severe earthquakes are estimated and examined. The results satisfied the design criteria.
Chapter 6 is conclusion of this paper.