Empirical formula for fundamental vibration periods of reinforced concrete buildings in Taiwan

Hong, Li; Hwang, Woei Luen

doi:10.1002/(sici)1096-9845(200003)29:3<327::aid-eqe907>3.0.co;2-0

Cited by 104 publications

(58 citation statements)

References 3 publications

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“…Crowley and Pinho (2010) review the work that was done at that time. Housner and Brady (1963), Hong and Hwang (2000) as well as Farsi and Bard (2004) criticized the use of the lateral dimension L in the formula. For these authors, only the height of the building has a statistical influence on its period, if one wants to use empirical relationships, basing their conclusions on ambient vibration data.…”

Section: Existing Formulas In Design Codesmentioning

confidence: 99%

Comparison between seismic vulnerability models and experimental dynamic properties of existing buildings in France

Michel

Guéguen

Lestuzzi

et al. 2010

Bull Earthquake Eng

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International audienceElastic fundamental frequency is a key-parameter of simplified seismic design and vulnerability assessment methods. Empirical relationships exist in codes to estimate this frequency but they miss experimental data to validate them accounting for national feature of building design and, above all, corresponding uncertainties. Even if resonance frequency extracted from ambient vibrations may be larger than the elastic frequency (at yield) generally used in earthquake engineering, ambient vibration recordings may provide a large set of data for statistical analysis of periods versus building characteristics relationships. We recorded ambient vibrations and estimated the fundamental frequency of about 60 buildings of various types (RC and masonry) in Grenoble City (France). These data complete the set existing yet, made of 26 RC-buildings of Grenoble (Farsi and Bard 2004) and 28 buildings in Nice (France) (Dunand 2005). Statistical analysis of these experimental data was performed for fundamental frequencies of RC shear wall structures and the results are compared with existing relationships. Only building height or number of stories has a statistical relevancy to estimate the resonance frequency but the variability associated to the proposed relationships is large. Moreover, we compared the elastic part of capacity curves of RC and masonry buildings used in the European Risk-UE method for vulnerability assessment with the experimental frequencies. The variability is also large and the curves may not be consistent with French existing buildings

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Section: Existing Formulas In Design Codesmentioning

confidence: 99%

Comparison between seismic vulnerability models and experimental dynamic properties of existing buildings in France

Michel

Guéguen

Lestuzzi

et al. 2010

Bull Earthquake Eng

View full text Add to dashboard Cite

show abstract

“…Differences in the fundamental period of buildings determined by the code equation and computational methods is due to elimination of the effects of non-structural members in the computational methods [8]. There are several proposed equations [9][10][11][12] to predict the fundamental period of reinforced concrete frames by considering more than the type and height of structure.…”

Section: Introductionmentioning

confidence: 99%

Parameters affecting the fundamental period of RC buildings with infill walls

Köse

2009

Engineering Structures

118

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“…Goel and Chopra 1997;Hong and Hwang 2000). Moreover, these relationships are dependent only on the material and structural system (concrete or steel frames, shear walls, masonry, etc.)…”

mentioning

confidence: 99%

Experimental and numerical evaluation of the fundamental period of undamaged and damaged RC framed buildings

Masi

Vona

2009

Bull Earthquake Eng

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This paper deals with the period evaluation of Reinforced Concrete (RC) framed buildings in elastic, yield and severely damaged states. Firstly, period-height relationships either reported in the literature, or obtained from both numerical simulations (eigenvalue analyses) and experimental measurements (ambient vibration analyses) have been examined and compared. Structural types representing low-rise, mid-rise and high-rise RC buildings without earthquake resistant design, widely present in the Italian and European built environment, have been studied. Results have shown high differences between numerical and experimental period values. Period elongation (stiffness degradation) during and after strong ground shaking has been also examined based on results from experimental in situ and laboratory tests performed on some RC framed building structures which suffered moderate-heavy damage. Some comments on the relationship between damage level and period elongation are reported.

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Empirical formula for fundamental vibration periods of reinforced concrete buildings in Taiwan

Cited by 104 publications

References 3 publications

Comparison between seismic vulnerability models and experimental dynamic properties of existing buildings in France

Comparison between seismic vulnerability models and experimental dynamic properties of existing buildings in France

Parameters affecting the fundamental period of RC buildings with infill walls

Experimental and numerical evaluation of the fundamental period of undamaged and damaged RC framed buildings

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