Evaluation of Dynamic Properties for the Super High-Rise RC Building Based on 3-D frame Analysis

Abstract

Strong motion records during the 2011 off the Pacific coast of Tohoku earthquake were obtained at high-rise RC buildings in the Tokyo metropolitan area. This paper presents the evaluation of dynamic properties of a high-rise RC building based on 3-D frame analysis. From these studies, the following results were obtained. (1) Relationship between the relative displacement and temporal variation of the natural frequency based on 3-D analysis was consistent with the earthquake observation records. (2) The height-wise distribution of story drift angle was dependent on the levels of the input earthquake motion and showed different characteristics for the pulse type input motions. (3) For the larger input motion where the structural responses exceed far beyond the experienced responding levels, maximum response is not largely affected by whether it experienced seismic responses before or not.