Dynamic analysis of buildings for earthquake-resistant design

Saatçioğlu, Murat; Humar, J. L.

doi:10.1139/l02-108

Cited by 55 publications

(27 citation statements)

References 25 publications

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“…For this reason, such analyses are used more commonly in research than in practice. More details on dynamic analysis can be found in Saatcioglu and Humar (2003).…”

Section: Dynamic Analysis Methodsmentioning

confidence: 99%

“…For this reason, different empirical relationships have been developed to predict the fundamental period for buildings having different lateral load-resisting systems. These range in complexity from simple equations based solely on building height (ASCE, 2005;Farsi and Bard, 2004;Fritz et al, 2009;Lagomarsino, 1993;NRC/IRC, 2005a;Saatcioglu and Humar, 2003) to more complex equations which incorporate the dimensions of individual structural elements (Goel and Chopra, 1998;Lee et al, 2000;Morales, 2000;Wallace and Moehle, 1992). Simple equations based solely on building height cannot be expected to be very accurate since they neglect many parameters that contribute to a building's lateral stiffness; however, they are easy to apply in general.…”

Section: Fundamental Periodmentioning

confidence: 99%

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In Situ Dynamic Characteristics of Reinforced Concrete Shear Wall Buildings

Gilles

McClure

2012

Structures Congress 2012

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Structural engineers routinely need to make assumptions about the dynamic properties (natural periods, mode shapes, and damping) of a building to simulate its response to dynamic loads, such as strong winds or earthquake ground motions. However, the assumed properties may significantly differ from those of the actual building, once it is constructed, due to differences between the idealized model and in situ conditions. The main objectives of this study are to evaluate how common models and assumptions used to predict the dynamic properties of buildings compare to those measured in actual buildings, and to develop improved prediction models.To this end, ambient vibration measurements were performed in 39 buildings on the island of Montréal and the dynamic properties of up to six vibration modes were identified, for each of these buildings, using the enhanced frequency domain decomposition method. Though the initial goal was to obtain a representative sample of different types of buildings, 27 of these 39 buildings turned out to be reinforced concrete buildings with shear walls providing the main resistance to lateral loads. Hence, the scope of this study was narrowed to the dynamic properties of reinforced concrete shear wall (RCSW) buildings. The measured dynamic properties of this subset of 27 buildings were then used to evaluate different models, proposed in building codes and in the literature, to predict the natural periods and damping characteristics of these types of buildings. Finally, simple models to predict the natural periods of torsion and second translation modes were proposed based on regression analyses. These models agree very well with those that have been proposed in the literature. Again, equations corresponding to different probability levels (mean, mean minus one standard deviation, and mean plus one standard deviation) were produced as a measure of uncertainty.This study should help engineers select realistic values of the dynamic properties of RCSW buildings for structural analysis and design, and should ultimately improve engineers' ability to predict the dynamic response of these buildings. Further, the proposed models could lead to improved recommendations in building codes.iii This research could not have been possible without the help of many building owners and managers, who allowed our team to perform vibration measurements in their buildings. I would also like to thank the numerous graduate and undergraduate students who were involved in these tests for both their participation and the stimulating discussions that often ensued:

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“…For this reason, such analyses are used more commonly in research than in practice. More details on dynamic analysis can be found in Saatcioglu and Humar (2003).…”

Section: Dynamic Analysis Methodsmentioning

confidence: 99%

Section: Fundamental Periodmentioning

confidence: 99%

In Situ Dynamic Characteristics of Reinforced Concrete Shear Wall Buildings

Gilles

McClure

2012

Structures Congress 2012

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“…The measured data used for the derivation of Equation 1-20 were based on reinforced concrete shear wall buildings. Large scatter was observed in the collected data when the measured period was related to only the height of the structures (Saatcioglu and Humar, 2003 Lee et al (2000), Morales (2000), and Goel and Chopra (1998)) to evaluate the applicability of various code period equations for concrete buildings. A summary of these studies is provided in section 2.1.…”

Section: Fundamentals Of Structural Dynamics 13mentioning

confidence: 99%

Dynamic characteristics of light-frame wood buildings

2019

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This research project deals with dynamic field testing of light-frame wood buildings with wood based shear walls. The primary objective of the investigation is to evaluate the code formula for estimating light wood frame building's fundamental period, through intensive field testing and numerical modelling. The project also aims to propose an alternative simplified rational approach where applicable. The thesis provides insight to the ambient vibration testing procedures of light-frame wood buildings and explains the protocol adopted for the current research program. Experimental and numerical investigations were performed to evaluate the effect of non-structural components, and the connectivity between firewall-separated buildings, on dynamic properties of light-frame wood buildings. The study provides a reliable expression for building period estimate based on field testing and numerical modeling.iii

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“…The measured data used for 43 the derivation of Equation (1) were taken on reinforced concrete shear wall buildings and large 44 scatter was observed in the collected data when the measured period was related to only the 45 height of the structures (Saatcioglu and Humar 2003). It is therefore questionable whether this 46 equation can reflect the fundamental periods of buildings of other materials (such as in light-47 frame sheathed wood structures) and at different locations outside California where construction 48 practices may also significantly differ.…”

Section: Effects 31mentioning

confidence: 99%

Establishing the fundamental period of light-frame wood buildings on the basis of ambient vibration tests

2018

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4This research project deals with dynamic field testing of light-frame wood buildings with wood-5 based shear walls. The primary objective of the investigation is to evaluate the building code 6 formula for estimating light-frame wood building's fundamental period for seismic analysis, 7 through intensive field testing and numerical modelling. The project also aims to propose an 8 alternative simplified rational approach to seismic analysis of these structures. The paper

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Dynamic analysis of buildings for earthquake-resistant design

Cited by 55 publications

References 25 publications

In Situ Dynamic Characteristics of Reinforced Concrete Shear Wall Buildings

In Situ Dynamic Characteristics of Reinforced Concrete Shear Wall Buildings

Dynamic characteristics of light-frame wood buildings

Establishing the fundamental period of light-frame wood buildings on the basis of ambient vibration tests

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