@article{fdi:010067665,
  title = {{B}uilding frequency fluctuations from continuous monitoring of ambient vibrations and their relationship to temperature variations},
  author = {{G}uillier, {B}ertrand and {C}hatelain, {J}ean-{L}uc and {P}erfettini, {H}ugo and {O}ubaiche, {E}. and {V}oisin, {C}hristophe and {B}ensalem, {R}. and {M}achane, {D}. and {H}ellel, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}uilding frequencies (fundamental and higher modes) are a critical parameter especially in the field of structural health monitoring mainly based on the stability of the structural dynamic parameters of individual building (frequencies, damping and modes shape). {O}ne of the most used methods to find out these parameters is based on the use on ambient vibration analysis. {I}n this work, we study the fluctuations over a month period of the fundamental frequencies (transverse and longitudinal) of a 3.5-story {RC}-building made of 2 identical units connected by a structural joint. {T}ime independent building frequencies is a strong assumption; as illustrated by our experiment showing that over an observation period of a month, building frequencies fluctuate of about 3.5 %. {A} clear correlation is found between the building frequency fluctuations and temperature variations, with a phase-shift interpreted as the characteristic time of heat diffusion within the walls. {T}his allows: (1) determining the thermal diffusivity of the structure, (2) inferring its relative stiffness variations, and (3) showing that its {Y}oung modulus varies linearly with temperature.},
  keywords = {{B}uilding frequencies ; {T}emperature ; {B}uilding health monitoring ; {D}iffusivity ; {Y}oung modulus ; {ALGERIE}},
  booktitle = {},
  journal = {{B}ulletin of {E}arthquake {E}ngineering},
  volume = {14},
  numero = {8},
  pages = {2213--2227},
  ISSN = {1570-761{X}},
  year = {2016},
  DOI = {10.1007/s10518-016-9901-z},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067665},
}