Earthquake Ground Motions for Seismic Damage Assessment and Re-Evaluation of Existing Buildings and Critical Facilities

Léger, Pierre; Tremblay, Robert

doi:10.1007/978-90-481-2386-5_8

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…According to statistical data [6], the damages on ground structures are mainly correlated with the vibration velocity, followed by acceleration. As the tamping time increases, the ground vibration velocity increases significantly [3], as well as the inertial force on the ground structure induced by vibration acceleration [7]. Hence, the vibration safe distance is generally determined by controlling PGV and PGA.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Ground Vibration of Full‐Stone Foundation under Dynamic Compaction

Shi

et al. 2019

Shock and Vibration

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is study focuses on the ground vibration of a full-stone foundation treatment project. e single-point dynamic compaction test was performed using a tamping machine at an energy level of 3200 kN·m. Time-history curves of ground vibration velocity were recorded under 10 times tamping within 120 m distance. e effects of tamping times on the waveform of velocity and frequency spectra were assessed, as well as of peak ground velocity (PGV), peak ground acceleration (PGA), and average frequency. Furthermore, the attenuations of PGV, PGA, and average frequency were also analyzed in detail. It has been founded that increasing tamping times of dynamic compaction can effectively improve PGV and PGA. For the frequency spectra, the increasing tamping times contribute to a higher frequency range, more primary frequencies, and a larger frequency domain. However, the three parameters, namely, PGV, PGA, and average frequency, remain stable roughly when they reach a threshold of test tamping times. e attenuations of PGV and PGA with the proportional distance follow the power law with negative exponents. Furthermore, the fitted equivalent factor increases while the damped exponential decreases persistently with the increase of tamping times. e average frequency is negatively linearly correlated with the proportional tamping distances.

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Section: Introductionmentioning

confidence: 99%

Investigation of Ground Vibration of Full‐Stone Foundation under Dynamic Compaction

Shi

et al. 2019

Shock and Vibration

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Civil Engineering Structures: Multiscale Damage Representation, Identification, Controlled Destruction and Quick Reconstruction

Ibrahimbegović

Kučerová

Brancherie

et al. 2009

Damage Assessment and Reconstruction After War or Natural Disaster

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Assessing physical vulnerability in large cities exposed to flash floods and debris flows: the case of Arequipa (Peru)

et al. 2014

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International audienceUnderstanding the physical vulnerability of buildings and infrastructure to natural hazards is an essential step in risk assessment for large cities. We have interpreted high spatial resolution images, conducted field surveys, and utilized numerical simulations, in order to assess vulnerability across Arequipa, south Peru, close to the active El Misti volcano. The emphasis of this study was on flash floods and volcanic or non-volcanic hyperconcentrated flows, which recur on average every 3.5 years across the city. We utilized a geographic information system to embed vulnerability and hazard maps as a step to calculate risk for buildings and bridges along the Río Chili valley and two tributaries. A survey of ~1,000 buildings from 46 city blocks, different in age, construction materials, and land usage, provided architectural and structural characteristics. A similar survey of twenty bridges across the three valleys was based on structural, hydraulic, and strategic parameters. Interpretation of high spatial resolution (HSR) satellite images, which allows for quick identification of approximately 69 % of the structural building types, effectively supplemented field data collection. Mapping vulnerability has led us to pinpoint strategic areas in case of future destructive floods or flows. Calculated vulnerability is high if we examine structural criteria alone. We further consider physical setting with the most vulnerable city blocks located on the lowermost terraces, perpendicular or oblique to the flow path. Statistical analysis conducted on 3,015 city blocks, considering nine criteria identified from HSR images, indicated that building-type heterogeneity and the shape of the city blocks, along with building and street network density, are the most discriminant parameters for assessing vulnerability

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Earthquake Ground Motions for Seismic Damage Assessment and Re-Evaluation of Existing Buildings and Critical Facilities

Cited by 3 publications

References 37 publications

Investigation of Ground Vibration of Full‐Stone Foundation under Dynamic Compaction

Investigation of Ground Vibration of Full‐Stone Foundation under Dynamic Compaction

Civil Engineering Structures: Multiscale Damage Representation, Identification, Controlled Destruction and Quick Reconstruction

Assessing physical vulnerability in large cities exposed to flash floods and debris flows: the case of Arequipa (Peru)

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