@article{fdi:010068124, title = {{S}eismic response of {B}eirut ({L}ebanon) buildings : instrumental results from ambient vibrations}, author = {{S}alameh, {C}hristelle and {G}uillier, {B}ertrand and {H}arb, {J}. and {C}ornou, {C}{\'e}cile and {B}ard, {P}. {Y}. and {V}oisin, {C}. and {M}ariscal, {A}rmand}, editor = {}, language = {{ENG}}, abstract = {{R}esonance period is a key parameter in the seismic design of a structure, thus dynamic parameters of buildings in {B}eirut ({L}ebanon) were investigated based on ambient vibration method for risk and vulnerability assessment. {L}ebanon is facing high seismic hazard due to its major faults, combined to a high seismic risk caused by dense urbanization in addition to the lack of a seismic design code implementation. {F}or this study, ambient vibration recordings have been performed on 330 {RC} buildings, period parameters extracted and statistically analyzed to identify correlations with physical building parameters (height, horizontal dimensions, age) and site characteristics (rock sites or soft sites). {T}he study shows that (1) the building height or number of floors ({N}) is the primary statistically robust parameter for the estimation of the fundamental period {T}; (2) the correlation between {T} and {N} is linear and site dependent: {T} ae {N}/23 for rock sites and {N}/18 for soft sites; (3) the measured damping is inversely proportional to the period: the taller the building the lower is the damping; (4) a significant overestimation of the period exists in current building codes. {H}owever part of the large discrepancy with building code recommendations may be due to the very low level of loading.}, keywords = {{L}ebanon ; {B}eirut ; {RC} buildings ; {A}mbient vibration ; {D}ynamic parameters ; {S}oil type ; {F}undamental period/frequency ; {D}amping ; {S}eismic code ; {LIBAN} ; {BEYROUTH}}, booktitle = {}, journal = {{B}ulletin of {E}arthquake {E}ngineering}, volume = {14}, numero = {10}, pages = {2705--2730}, ISSN = {1570-761{X}}, year = {2016}, DOI = {10.1007/s10518-016-9920-9}, URL = {https://www.documentation.ird.fr/hor/fdi:010068124}, }