Effects of environmental conditions on the experimental modal analysis of timbrel domes

Title: Effects of environmental conditions on the experimental modal analysis of timbrel domes
Author(s): A.D. Sorensen, E. Erdogmus
Paper category : conference
Book title: RILEM Symposium on On Site Assessment of Concrete, Masonry and Timber Structures - SACoMaTiS 2008
Editor(s): L. Binda, M. di Prisco, R. Felicetti
Print-ISBN: 978-2-35158-061-5
e-ISBN: 978-2-35158-075-2
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 779 - 785
Total Pages: 7
Nb references: 4
Language: English

Abstract: The paper studies short and long term effects of environmental conditions on the mechanical characteristics of timbrel domes. First, the effects of long term weathering and aging on the mechanical characteristics, as evidenced from experimental modal analysis, are discussed. Experimental modal analysis data from immediately after construction are compared to data from six months later, and a decrease in flexibility is observed. Second, the short duration fluctuations in the ambient temperature and humidity are observed. Modal analysis results, along with the temperature and relative humidity data during test time are collected over a two month period. The obtained natural frequencies are compared to temperature and humidity data, and normalization factors for the two are developed.

Online publication: 2009-05-26
Publication type : full_text
Public price (Euros): 0.00