Interdependency between seismic acceleration parameters and the behaviour of structures

Elenas, Anaxagoras

doi:10.1016/s0267-7261(97)00005-5

Cited by 36 publications

(13 citation statements)

References 1 publication

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“…6c). The effectiveness of S a (T 1 ) as indicator of the seismic motion destructiveness is in agreement with previous studies [1,2,15]. This is due to the fact that it is the only one of the investigated earthquake intensity measures that incorporates structural information.…”

Section: Correlation Between Earthquake Intensity Measures and Structsupporting

confidence: 91%

“…Elenas [1,2] and Elenas and Meskouris [3] studied the interdependency between several seismic acceleration parameters and the damage state of a 6-storey [1] and an 8-storey [2,3] planar R/C frame structure. The damage response parameters that were evaluated were the maximum horizontal displacement at the top of the building [1], the curvature ductility demand at the base of a column [1], the Park and Ang overall structural damage index [2,3], the maximum softening index after DiPasquale/Cakmak [2], the maximum interstorey drift [3] and the maximum floor acceleration [3].…”

Section: Introductionmentioning

confidence: 99%

“…The damage response parameters that were evaluated were the maximum horizontal displacement at the top of the building [1], the curvature ductility demand at the base of a column [1], the Park and Ang overall structural damage index [2,3], the maximum softening index after DiPasquale/Cakmak [2], the maximum interstorey drift [3] and the maximum floor acceleration [3]. They observed that for the structures under consideration spectral and energy related seismic intensity measures correlate well with seismic damage.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Correlation between ground motion intensity measures and seismic damage of 3D R/C buildings

Kostinakis

Athanatopoulou

Morfidis

2015

Engineering Structures

106

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Section: Correlation Between Earthquake Intensity Measures and Structsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Correlation between ground motion intensity measures and seismic damage of 3D R/C buildings

Kostinakis

Athanatopoulou

Morfidis

2015

Engineering Structures

106

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“…However, even with the same amount of energy input, the performance of the structure with the hysteretic damper can be di erent for di erent earthquakes [6]. This may be caused mainly by ignoring the time-dependant parameters of earthquakes [7]. Hence, it was found that the current design methods could not reduce the seismic vulnerability of structures in some cases [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of earthquake energy input characteristics on hysteretic damper efficiency

Yamaguchi

El-Abd

2003

Earthq Engng Struct Dyn

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SUMMARYRobust performance of hysteretic dampers, used in controlling mid-rise buildings, against change of earthquake characteristics is investigated in this paper. A shear type ten-storey building incorporating hysteretic dampers is studied as a model under the assumption of elastic perfectly plastic behavior for inelastic frame and damper deformations. An energy-based damper performance index is used to evaluate damper overall e ciency. Thirty-ÿve earthquake records are applied and the damper strength is optimized for each earthquake record to obtain the maximum performance index or the damper e ciency. Based on the obtained numerical results it is found that, besides the e ect of maximum energy input on damper e ciency, other time-dependant properties such as energy-based e ective duration and earthquake dominant period have great in uence on the damper e ciency. A factor ( ), which represents the combined e ect of maximum energy input, e ective duration and dominant earthquake period, is also derived for the prediction of damper e ciency.

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“…The importance of the correlation between these seismic parameters and the damage to structures has been increasingly reported by researchers [168]. The correlation between 10 seismic parameters of 20 well-known acceleration records and the responses of an RC building frame in terms of maximum inter-storey drift, overall structural damage index and maximum floor acceleration was investigated in many studies [169][170][171][172][173][174]. They concluded that spectral and energy parameters demonstrate a strong correlation, while PGA weakly correlates with the damage indices.…”

Section: Introductionmentioning

confidence: 99%

Seismic damage assessment and FRP retrofit of reinforced concrete structures

Cao¹

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Only a small percentage of existing buildings around the world have been designed and constructed based on modern seismic codes. Majority of these buildings were designed and built based on older codes and thus are now identified as potentially hazardous due to more stringent seismic requirements of newer seismic standards. Consequently, these structures are vulnerable to earthquakes as has become evident in the recent earthquake events. Mitigating the seismic hazards for these deficient structures, instead of replacement, has been increasingly looked at by the engineering community due to obvious economic reasons.An important first step towards this mitigation is called "Damage Assessment". Damage Assessment by definition is the evaluation of potential damage in a particular structure in a seismic event. There exist many indices such as drift based on which the extent of potential damage in a building can be described. Choosing the right index and understanding how a particular index would correlate with the seismic parameters or how sensitive it would be to a particular seismic event is quite important. Many structures, for example, are structurally sound under far fault earthquakes but may suffer from extensive damage if a near fault earthquake occurs.While many studies have been undertaken in the past towards methods of analysis that best simulate the damage and on the development of indices that better represent it, the efforts are isolated and in some instances contradictory. The current study thus attempts to address the gaps in the state of the art and presents a coherent and consistent understanding of the issue together with the introduction of a couple of damage mitigation methods.The main achievements of this thesis are as follows:A simplified model for inelastic analysis of RC structures subjected to earthquakes is developed.A new damage model that appropriately assesses the damage of RC structures is proposed. This new damage model is based on the single parameter of energy which naturally overrides and implicitly incorporates a number of parameters such as force, deformation and number of cycles.Damage assessment in RC structures using the new damage model is performed.Correlation between seismic parameters and damage indices of structures is investigated.A new definition for near-fault earthquakes is developed and regions with different damage potential are established.

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Interdependency between seismic acceleration parameters and the behaviour of structures

Cited by 36 publications

References 1 publication

Correlation between ground motion intensity measures and seismic damage of 3D R/C buildings

Correlation between ground motion intensity measures and seismic damage of 3D R/C buildings

Effect of earthquake energy input characteristics on hysteretic damper efficiency

Seismic damage assessment and FRP retrofit of reinforced concrete structures

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