Analysis and control of vibrations in a floor of a building used for dancing activities

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Moutinho, C. (Author) FEUP; Cunha, A. (Author) FEUP; Caetano, E. (Author) FEUP

Conference proceedings International

Title: PROCEEDINGS OF THE 8TH INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS, EURODYN 2011

Pages: 1846-1850

8th International Conference on Structural Dynamics (EURODYN)

Leuven, BELGIUM, JUL 04-06, 2011

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Other information

Authenticus ID: P-00K-8RZ

Abstract (EN): Floors of buildings may be subjected to high levels of vibration particularly due to the possibility of occurrence of resonance phenomena associated to the proximity of dominant frequencies of the dynamic excitation induced by its occupants with natural frequencies of the structure. In these cases, the vibration levels achieved may be considered unacceptable in terms of the adequate functioning of the structure, often causing feelings of fear and discomfort to its users. The use of some standards in this area can provide important indicators on the evaluation of the admissibility of the vibrations in this type of structural elements. If the vibration levels are high, several control techniques are available in order to reduce the structural response and ensure the proper functioning of the floor. The most popular control devices used in these cases are Tuned Mass Dampers (TMDs), which are particularly effective in reducing harmonic vibrations. In this context, this work aims to analyze the vibration levels observed in a floor of a building used for dancing activities by comparing the measured and simulated response of the system with the recommendations indicated in several standards. In any case, due to the effective existence of complaints, a control system composed by a single TMD is proposed in order to reduce the dynamic response of the structure.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5