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Influence of separation gap on the response of colliding models of steel structures under seismic and paraseismic excitations
Abstrakt
As a result of high urbanization, the need to erect closely-spaced buildings forces designers to consider collisions between structures taking place during ground motions. Experimental and numerical studies have confirmed that such collisions (often referred to as structural pounding) may cause serious damage to the structural elements and even lead to total collapse of colliding structures. The main reason of earthquake-induced structural pounding, besides insufficient in-between gap size, is related to the differences in stiffness and/or mass of colliding structures. The aim of the study is to present the results of experimental investigation focused on dynamic behavior of closely-separated steel structures under seismic and paraseismic excitations. To perform this study, models of three steel towers, with different dynamic parameters, have been constructed and mounted to the platform of a shaking table. The influence of the size of separation gap (=0 mm; =30 mm; =60 mm) on the response of colliding structures has been investigated. Experimental study confirms that earthquake-induced pounding may lead to significant changes in the structural behavior. The smallest structural response has been observed for the case of zero gap size as well as when the gap size is large enough to prevent pounding.
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Informacje szczegółowe
- Kategoria:
- Aktywność konferencyjna
- Typ:
- materiały konferencyjne indeksowane w Web of Science
- Tytuł wydania:
- 3rd Polish Congress of Mechanics (PCM) / 21st International Conference on Computer Methods in Mechanics (CMM) strony 533 - 536
- Język:
- angielski
- Rok wydania:
- 2016
- Opis bibliograficzny:
- Sołtysik B., Jankowski R..: Influence of separation gap on the response of colliding models of steel structures under seismic and paraseismic excitations, W: 3rd Polish Congress of Mechanics (PCM) / 21st International Conference on Computer Methods in Mechanics (CMM), 2016, CRC Press/Balkema, Taylor & Francis Group,.
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1201/b20057-114
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 119 razy