2019/05/05 by Mohammadreza Mashayekhi, Mashayekhi, Mohammadreza, Mojtaba Harati +3 · 1 citation
Engineering · #FOS: Physical sciences #Geophysics (physics.geo-ph) #Masonry and Concrete Structural Analysis #Seismic Performance and Analysis #Structural Health Monitoring Techniques #Vibration Control and Rheological Fluids
paper · pdf · doi:10.48550/arxiv.1905.01737
openalex publication_date 2019/05/05 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28
Strong-motion duration and number of cycles of motion are the well-known\nparameters with which earthquake engineers currently use to take into account\nthe influence of motion duration for the dynamic analysis of structures. In\naddition to these prevalent means, using the number of nonlinear cycles, which\na structure experiences during the motion, is also one another method to find\nthe influence of the motion duration in the response of structures. In this\nstudy, a new approach is proposed to determine the number of nonlinear cycles.\nMoreover, a parameter based on both hysteretic energy and number of nonlinear\ncycles is likewise suggested to precisely reflect the shaking characteristics\nof the motion. The proposed parameter is expected to demonstrate a high\ncorrelation with the response of structures even for the structures having\ndeteriorative and degraded behaviour during the motion. This matter is examined\nand confirmed with the application of this parameter to predict the influence\nof motion duration in the response of several degrading RC frames. It is\nrevealed that the proposed parameter is able to well predict the influence of\nmotion duration and can be used as a criterion to select ground motions for\ndynamic analysis.\n