Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Serviceability Design Spectral Acceleration for Structures Subjected to Passing Underground Trains
https://orcid.org/http://orcid.org/0000-0002-4435-3540
Evaluation of the vibration transmitted to a building due to nearby passing underground trains is an important design need nowadays. There are no easily available tools for this purpose, and in many cases, engineers must resort to local measurement and vibration experiments. As a simple alternative, in this paper the idea of using seismic design spectra for earthquake analysis is extended to dealing with train-induced vibrations. In this regard, maximum accelerations are calculated for single-degree-of-freedom systems with natural periods of 0–4 s subjected to passage of an underground train. The dynamic wheel loads are determined first and then applied to a 3D soil-tunnel system. The problem is analyzed for the three most common train types, three train velocities, three different tunnel depths, three soil types and three damping ratios of the structure. The analysis results in the design spectral acceleration for 243 cases of passing trains. By comparison to the comfort threshold, cases in which the serviceability is breached are highlighted. The spectra presented can be used as a very simple tool for analysis of the train-induced vibrations in modal analysis of structures.
Serviceability Design Spectral Acceleration for Structures Subjected to Passing Underground Trains
https://orcid.org/http://orcid.org/0000-0002-4435-3540
Evaluation of the vibration transmitted to a building due to nearby passing underground trains is an important design need nowadays. There are no easily available tools for this purpose, and in many cases, engineers must resort to local measurement and vibration experiments. As a simple alternative, in this paper the idea of using seismic design spectra for earthquake analysis is extended to dealing with train-induced vibrations. In this regard, maximum accelerations are calculated for single-degree-of-freedom systems with natural periods of 0–4 s subjected to passage of an underground train. The dynamic wheel loads are determined first and then applied to a 3D soil-tunnel system. The problem is analyzed for the three most common train types, three train velocities, three different tunnel depths, three soil types and three damping ratios of the structure. The analysis results in the design spectral acceleration for 243 cases of passing trains. By comparison to the comfort threshold, cases in which the serviceability is breached are highlighted. The spectra presented can be used as a very simple tool for analysis of the train-induced vibrations in modal analysis of structures.
Serviceability Design Spectral Acceleration for Structures Subjected to Passing Underground Trains
https://orcid.org/http://orcid.org/0000-0002-4435-3540
Evaluation of the vibration transmitted to a building due to nearby passing underground trains is an important design need nowadays. There are no easily available tools for this purpose, and in many cases, engineers must resort to local measurement and vibration experiments. As a simple alternative, in this paper the idea of using seismic design spectra for earthquake analysis is extended to dealing with train-induced vibrations. In this regard, maximum accelerations are calculated for single-degree-of-freedom systems with natural periods of 0–4 s subjected to passage of an underground train. The dynamic wheel loads are determined first and then applied to a 3D soil-tunnel system. The problem is analyzed for the three most common train types, three train velocities, three different tunnel depths, three soil types and three damping ratios of the structure. The analysis results in the design spectral acceleration for 243 cases of passing trains. By comparison to the comfort threshold, cases in which the serviceability is breached are highlighted. The spectra presented can be used as a very simple tool for analysis of the train-induced vibrations in modal analysis of structures.
Serviceability Design Spectral Acceleration for Structures Subjected to Passing Underground Trains
Iran J Sci Technol Trans Civ Eng
Yazdani, A. A. (Autor:in) / Behnamfar, F. (Autor:in)
01.10.2023
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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