Experimental Investigate on Seismic Performance of RC Hill-Side Stilted Buildings Affected by Vertical Stiffness Irregularity
Ruifeng Li, Liping Liu, Yingmin Li, Guojue Wang
Abstract
In this study, the ratio of lateral stiffness of the stilted story to that of the second story was proposed as the story stiffness ratio (SSR) to quantify vertical stiffness irregularities of hillside stilted buildings. A quasi-static experiment was conducted on a plane stilted frame with an SSR of 40 in the slope direction. Experimental results were compared with those of a stilted frame with an SSR of 1.01. The results show that SSR is an important factor influencing seismic failure modes of stilted buildings. As SSR decreases, structural ductility and deformation capacity improve, and stiffness degradation decelerates.
Topics & Concepts
StiffnessMaterials scienceDuctility (Earth science)Structural engineeringFrame (networking)Deformation (meteorology)Composite materialMechanical engineeringEngineeringCreepSeismic Performance and AnalysisStructural Behavior of Reinforced ConcreteStructural Engineering and Vibration Analysis