Damage assessment of shear wall components for RC frame–shear wall buildings using story curvature as engineering demand parameter

Chen, Xiong; Lu, Xinzheng; Lin, Xuchuan

doi:10.1016/j.engstruct.2019.03.068

Cited by 36 publications

(11 citation statements)

References 25 publications

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“…Buildings with concrete shear walls have been widely used in earthquake-prone areas to provide enhanced strength, stiffness, and ductility capacity against possible earthquakes. however they were severely damaged during previous earthquakes, compromising their performance [1][2][3][4][5]. In most cases, the damaged buildings were rebuilt due to the difficulties in repairing concrete shear walls and/or the fact that an required performance may not be ensured after repairing.…”

Section: Introductionmentioning

confidence: 99%

Multicriteria Decision-Making Methods in Selecting Seismic Upgrading Strategy of High-Rise RC Wall Buildings

et al. 2022

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Reinforced concrete (RC) structural walls are widely used in high-rise structures in earthquakeprone areas. Damaged by the earthquakes in the past decades, these buildings need retrofitting in order to increase the resilience of buildings with concrete shear walls. This study aimed to investigate the retrofitting of high-rise RC wall buildings using energy dissipation devices. To this end, a total of 4 buildings with 15, 20, 25, and 30 stories equipped with concrete shear walls as their lateral load-resisting system were retrofitted using passive seismic control systems. The buildings were subjected to the set of the far-field and near-field record presented in the Federal Emergency Management Agency (FEMA) P695, and an index was defined to relate the structural responses of the building, such as drift, acceleration, velocity, displacement, and base shear, to the earthquake records. The resulting index values were considered as the criterion, and the passive seismic control systems were ranked by the efficient multi-criterion decision-making (MCDM) method. Based on the results from the MCDM and using the considered criteria, friction damper was ranked first among the avaiable energy dissipation devices for high-rise RC wall buildings.

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Section: Introductionmentioning

confidence: 99%

Multicriteria Decision-Making Methods in Selecting Seismic Upgrading Strategy of High-Rise RC Wall Buildings

et al. 2022

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“…Curvature sensing is essential in various fields such as smart robot [1], engineering structure [2] and medical image [3], etc. When compared with the traditional resistive curvature sensors, the optical fiber curvature sensor owns the advantages such as flexibility, small size, low cost, immunity to electromagnetic interference and easiness to form sensing network [4,5].…”

Section: Introductionmentioning

confidence: 99%

Multiplexed Weak Waist-Enlarged Fiber Taper Curvature Sensor and Its Rapid Inline Fabrication

Wang

Geng

et al. 2021

Sensors

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This study proposes a multiplexed weak waist-enlarged fiber taper (WWFT) curvature sensor and its rapid fabrication method. Compared with other types of fiber taper, the proposed WWFT has no difference in appearance with the single mode fiber and has ultralow insertion loss. The fabrication of WWFT also does not need the repeated cleaving and splicing process, and thereby could be rapidly embedded into the inline sensing fiber without splicing point, which greatly enhances the sensor solidity. Owing to the ultralow insertion loss (as low as 0.15 dB), the WWFT-based interferometer is further used for multiplexed curvature sensing. The results show that the different curvatures can be individually detected by the multiplexed interferometers. Furthermore, it also shows that diverse responses for the curvature changes exist in two orthogonal directions, and the corresponding sensitivities are determined to be 79.1°/m−1 and –48.0°/m−1 respectively. This feature can be potentially applied for vector curvature sensing.

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“…Xu et al (Chengxiang et al 2018) carried out a seismic fragility analysis of steel-reinforced concrete frame structures with OpenSees software and investigated the differences in the seismic fragility curves based on the peak inter-storey drift ratio (IDR) and two damage indices, demonstrating that the analysis based on the damage index of the members is more cost-effective, practical, and robust. Xiong et al (Xiong, Xinzheng, and Lin 2019) executed the fragility analysis of the frameshear wall structure using the storey curvature as the engineering demand parameter (EDP) and determined and validated the damage limit state (LS) of the shear wall. Skalomenos et al (Skalomenos, Hatzigeorgiou, and Beskos 2015) researched the seismic performance of plane moment-resisting frames composed of steel I-beams and CFST columns and established fragility curves based on the peak ground acceleration (PGA) and spectral acceleration.…”

Section: Introductionmentioning

confidence: 99%

Seismic fragility analysis and index evaluation of concrete-filled steel tube column frame-core tube structures

Zeng

Huang

Zhou

et al. 2021

Journal of Asian Architecture and Building Engineering

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To understand the effect of connection type on the seismic fragility of concrete-filled steel tube (CFST) column frame-core tube structures, typical structures with different numbers of storeys (15, 30, 45, and 60) and different types of beam-end connections (rigid connections, hinged connections, and rigid connections with outriggers) are designed. The probabilistic seismic demand models (PSDMs) of the structures are obtained using cloud analysis, and seismic fragility curves based on the mean period and the number of storeys are established. The results show that the differences in the seismic fragilities among the structures with the three types of connections can be effectively determined by the critical inter-storey drift ratio (IDR) and the storey ductility and that the determination method with the critical IDR is relatively simple. The use of beam-end hinges in the 15-storey structure results in an advantageous seismic performance, with a lower probability of exceeding the limit states, and the performance of the 60-storey structure with beam-end hinges is sensitive to spectral acceleration. The spectral acceleration and peak ground acceleration (PGA) can effectively describe the fragility curves based on the number of storeys and the mean period, respectively.

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Damage assessment of shear wall components for RC frame–shear wall buildings using story curvature as engineering demand parameter

Cited by 36 publications

References 25 publications

Multicriteria Decision-Making Methods in Selecting Seismic Upgrading Strategy of High-Rise RC Wall Buildings

Multicriteria Decision-Making Methods in Selecting Seismic Upgrading Strategy of High-Rise RC Wall Buildings

Multiplexed Weak Waist-Enlarged Fiber Taper Curvature Sensor and Its Rapid Inline Fabrication

Seismic fragility analysis and index evaluation of concrete-filled steel tube column frame-core tube structures

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