Experimental and numerical study of seismic performance of high-strength steel fabricated framed-tube structures with replaceable shear links

Lian, Ming; Guan, Binlin; Cheng, Qianqian; Zhang, Hao; Su, Mingzhou

doi:10.1016/j.istruc.2020.10.081

Cited by 13 publications

(6 citation statements)

References 35 publications

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“…An adequate estimate of the residual displacements becomes fundamental for determining the structural residual capacity of the building and for assessing whether the structure would collapse, or survive, during the aftershocks (Luco et al 2004) or other main shocks (Montuori et al 2021). Huge efforts have been made in recent years to identify design strategies or recentering devices (Hashemi et al 2020, Hashemi et al 2019, Khoo et al 2013, Kamperidis et al 2018, Freddi et al 2017, Baiguera et al 2016, Tzimas et al 2015, Guo et al 2022, Beiraghi and Freidoni 2021, Noureldin et al 2021, Ke et al 2021, Kharrazi and Zahrai 2020, Lian et al 2020, Song et al 2019, Chao et al 2019, Lian et al 2019 able to assure the control of the residual drift.…”

Section: Introductionmentioning

confidence: 99%

Residual Drift Control Strategies: extension and application to MDOF Systems

Montuori

Nastri

Tagliafierro

2023

Preprint

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The paper proposes a new methodology for the control of residual displacements in multi-storey steel structure frames. The work starts from the validation and extension of a mechanical model based on single degree of freedom systems, already proposed in previous work, following with analyses performed on a set of natural accelerograms. The same model is applied to multi-degree of freedom (MDOF) systems through an anlaytical design procedure. The procedure is used to dimension study cases composed of concentrically braced frames that are analysed through nonlinear dynamic analyses with earthquake records excerpted from the previous dataset. The results confirm the effectiveness and suitability of the proposed procedure for MDOF systems. ……

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Section: Introductionmentioning

confidence: 99%

Residual Drift Control Strategies: extension and application to MDOF Systems

Montuori

Nastri

Tagliafierro

2023

Preprint

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“…Hence, this system dissipates energy by a shear yielding mechanism instead of the flexural yielding behavior. Nikoukalam and Dolatshahi (2014) introduced the concept of the shear link frame, and this idea was later investigated by Dolatshahi et al (2018), (2021), Mahmoudi et al (2016Mahmoudi et al ( , 2019, Lian et al (2020), Guan et al (2020. This category of studies experimentally investigated the shear link frame issue in one bay frame and showed its performance.…”

Section: Introductionmentioning

confidence: 99%

Dual moment resisting-shear link frames: experimental and numerical investigation

Mahmoudi

Rahai

Hatami

2023

Preprint

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Moment resisting frames (MRFs) are one of the most favorable systems, thanks to their appropriate performance and sufficient geometric flexibility. Despite these advantages, MRFs have limitations such as low stiffness and certain code limitations. This paper provides the experimental and numerical results of a novel dual lateral load resisting system. This dual system is proposed to combine the flexural and shear nonlinear behavior of MRFs with different lengths. In the proposed dual system, MRFs are combined with frames that have a shear link with a smaller cross-section at the mid-span. This combination transfers the first plastic hinges location from the beam ends of the MRFs to the mid-span of the shear link frames. Two 1/3-scale tests are performed in the strong floor lab, and the frames are tested under quasi-static cyclic loading. In addition to increasing the stiffness of the system, the novel dual system waives the code requirement to satisfy the constraint on the beam span-to-depth (span/depth) ratio. Furthermore, the new dual system improves the resilience of the system due to the substitutability of the shear link after an earthquake. Moreover, verified 3D finite element models of the moment resisting-shear link frames dual system are also used to demonstrate the performance of the new dual system.

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“…e American Applied Technology Council (ATC) gave earthquake vulnerability curves for various types of lifeline equipment and facilities based on expert experience [9] for use on the US earthquake emergency (FEMA) seismic risk analysis system HAZAS [10]. Previously, more research has been conducted for substation visualization and monitoring, and some researchers have studied the design of remote video monitoring system for substations based on self-assembling networks [11].…”

Section: Introductionmentioning

confidence: 99%

Visual Monitoring Technology for Substation Vulnerable High-Voltage Electrical Equipment Based on ISSA-LSTM Deep Learning Model Coupling Video Overlay Algorithm

Wang

Ding

Tan

2022

Computational Intelligence and Neuroscience

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To enhance the visualization effect of substation high-voltage electrical equipment vulnerability, this study proposes an ISSA-LSTM coupled video overlay algorithm-based substation high-voltage electrical equipment vulnerability visualization and monitoring model. Using the improved α blending algorithm combined with the inverse sampling of video background color, overlaying visible video as well as infrared video, using the improved adaptive weighted two-dimensional principal component analysis (W2DPCA) to fuse the base layer, selecting the detail layer as the final detail layer, obtaining the final fusion frame, and realizing the visualization and monitoring of substation high-voltage electrical equipment vulnerability, and introducing the improved sparrow search algorithm (ISSA) to establish long and short-term memory network prediction model to reduce the prediction error and improve the monitoring accuracy rate. The experimental results show that the monitoring frames obtained by this method can reflect rich details of substation high-voltage electrical equipment, and the texture color and equipment edge contrast are enhanced to facilitate accurate determination of substation high-voltage electrical equipment vulnerability, and the prediction accuracy of ISSA-LSTM model is as high as 99.85%.

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Experimental and numerical study of seismic performance of high-strength steel fabricated framed-tube structures with replaceable shear links

Cited by 13 publications

References 35 publications

Residual Drift Control Strategies: extension and application to MDOF Systems

Residual Drift Control Strategies: extension and application to MDOF Systems

Dual moment resisting-shear link frames: experimental and numerical investigation

Visual Monitoring Technology for Substation Vulnerable High-Voltage Electrical Equipment Based on ISSA-LSTM Deep Learning Model Coupling Video Overlay Algorithm

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