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Earthquakes and Structures Volume 26, Number 4, April 2024 , pages 285-297 DOI: https://doi.org/10.12989/eas.2024.26.4.285 |
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Random vibration-based investigation of required separation gap between adjacent buildings |
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Atefeh Soleymani, Denise-Penelope N. Kontoni and Hashem Jahangir
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| Abstract | ||
| Due to the imbalanced vibration of the adjacent buildings, the pounding phenomenon occurs as a result of an insufficient gap between them. Providing enough gap between adjacent structures is the most efficient approach to preventing the pounding effect. This paper calculated the required separation gaps between adjacent buildings, including two, four, eight, twelve and twenty stories steel moment-resisting frames, and investigated their related influencing parameters such as time periods, damping ratios, and the number of bays. The linear and nonlinear dynamic time-history analyses under real seismic event records were conducted to calculate the required separation gaps by obtaining relative displacement and velocity functions of two adjacent frames. The results showed that the required separation gap increased when the time periods of adjacent frames were not the same. The resulting separation gaps values of linear and nonlinear analyses were similar only for two and four stories frames. In other frames, the resulting separation gap values of linear analyses surpassed the corresponding nonlinear analyses. Although increasing the damping ratios in adjacent frames causes a decrease in the required separation gaps, the number of bays had no significant effect on them. | ||
| Key Words | ||
| adjacent buildings; damping ratio; dynamic analysis; random vibration; separation gap; time period | ||
| Address | ||
| Atefeh Soleymani: Department of Civil Engineering, Shahid Bahonar University of Kerman, Kerman, Iran Denise-Penelope N. Kontoni: 1) Department of Civil Engineering, School of Engineering, University of the Peloponnese, GR-26334 Patras, Greece, 2) School of Science and Technology, Hellenic Open University, GR-26335 Patras, Greece Hashem Jahangir: Department of Civil Engineering, University of Birjand, Birjand, Iran | ||