Recording inter-storey drifts of structures in time-history approach for seismic design of building frames

Hokmabadi, AS; Fatahi, B; Samali, Bijan

doi:10.7158/s11-118.2012.13.2

Cited by 27 publications

(12 citation statements)

References 1 publication

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“…While there are numerous methods for determining the story drift ratio of the structure through a time-history analysis, some researchers have put emphasis on the proper performance of the method dealing with determining the maximum story drift ratio at each level considering all time-steps during the earthquake [56]. It needs to be underscored that the story drift ratio of the interaction model is not necessarily higher than that of resulted from the model without considering the interaction issue, i.e.…”

Section: Story Drift Ratiomentioning

confidence: 97%

Seismic analysis of the soil–structure interaction for a high rise building adjacent to deep excavation

Yeganeh

Bazaz

Akhtarpour

2015

Soil Dynamics and Earthquake Engineering

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Section: Story Drift Ratiomentioning

confidence: 97%

Seismic analysis of the soil–structure interaction for a high rise building adjacent to deep excavation

Yeganeh

Bazaz

Akhtarpour

2015

Soil Dynamics and Earthquake Engineering

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“…This means that all the records are relative to the movements of the foundation on the soil surface level. This data was based on the lateral deformation of each storey when maximum de°ection at the top level occurs because, as Hokmabadi et al 51 stated, this approach gives a more reasonable pattern of structural deformation compared to the approach where maximum absolute storey deformation irrespective of the time they occurred were recorded. Figure 17 shows a sample of the timehistory deformation records used to obtain the lateral deformations reported in Fig.…”

Section: Lateral De°ection and Inter-storey Drifts Of The 15-storey Smentioning

confidence: 99%

Influence of Foundation Type on Seismic Performance of Buildings Considering Soil–Structure Interaction

Hokmabadi

Fatahi

2016

Int. J. Str. Stab. Dyn.

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In selecting the type of foundation best suited for mid-rise buildings in high risk seismic zones, design engineers may consider that a shallow foundation, a pile foundation, or a pile-raft foundation can best carry the static and dynamic loads. However, di®erent types of foundations behave di®erently during earthquakes, depending on the soil-structure interaction (SSI) where the properties of the in situ soil and type of foundation change the dynamic characteristics (natural frequency and damping) of the soil-foundation-structure system. In order to investigate the di®erent characteristics of SSI and its in°uence on the seismic response of building frames, a 3D numerical model of a 15-storey full-scale (prototype) structure was simulated with four di®erent types of foundations: (i) A¯xed-based structure that excludes the SSI, (ii) a structure supported by a shallow foundation, (iii) a structure supported by a pile-raft foundation in soft soil and (iv) a structure supported by a°oating (frictional) pile foundation in soft soil. Finite di®erence analyzes with FLAC3D were then conducted using real earthquake records that incorporated material (soil and superstructure) and geometric (uplifting, gapping and P À Á e®ects) nonlinearities. The 3D numerical modeling procedure had previously been veri¯ed against experimental shaking table tests conducted by the authors. The results are then presented and compared in terms of soil ampli¯cation, shear force distribution and rocking of the superstructure, including its lateral deformation and drift. The results showed that the type of foundation is a major contributor to the seismic response of buildings with SSI and should therefore be given careful consideration in order to ensure a safe and cost e®ective design.

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“…Drift can be measured using the performance damage level in performance-based seismic design (PBSD), which is a new approach to earthquake-resistant design. Drift can be described by considering the maximum allowable damage state B Fadzli Mohamed Nazri cefmn7@gmail.com 1 Disaster Research Nexus, School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia in identifying the performance level [1]. It can also be expressed as the maximum desired extent of damage to a structure under a specific earthquake design level.…”

Section: Introductionmentioning

confidence: 99%

Seismic Fragility Curves for Steel and Reinforced Concrete Frames Based on Near-Field and Far-Field Ground Motion Records

Nazri

Saruddin

2015

Arab J Sci Eng

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This study presents the fragility curve for steel and concrete frames based on near-field (NF) and far-field (FF) ground motion records. The fragility curve is calibrated to the incremental dynamic analysis (IDA) curve based on building materials and frame heights. The frames are designed according to Eurocodes. This study uses seven ground motion records for NF and another seven records for FF. The five performance levels prescribed by FEMA-273 are used as structure performance benchmarks in generating the IDA curve. Results based on the NF and FF records indicate that a three-storey steel frame is stiffer than a concrete frame. By contrast, the results for a six-storey structure show that a steel frame is more suitable than low-rise and mid-rise frames. The fragility curve results show that the probability of reaching or exceeding a specified damage state can be determined.

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Recording inter-storey drifts of structures in time-history approach for seismic design of building frames

Cited by 27 publications

References 1 publication

Seismic analysis of the soil–structure interaction for a high rise building adjacent to deep excavation

Seismic analysis of the soil–structure interaction for a high rise building adjacent to deep excavation

Influence of Foundation Type on Seismic Performance of Buildings Considering Soil–Structure Interaction

Seismic Fragility Curves for Steel and Reinforced Concrete Frames Based on Near-Field and Far-Field Ground Motion Records

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