Reliability-based optimization of shear walls in RC shear wall-frame buildings subjected to earthquake loading

Abualreesh, Abdulrahman M.; Tüken, Ahmet; Albidah, Abdulrahman; Siddiqui, Nadeem A.

doi:10.1016/j.cscm.2022.e00978

Cited by 9 publications

(8 citation statements)

References 26 publications

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“…A critical parameter governing the reduction of damage in buildings subjected to earthquake-induced ground accelerations is the relative story drift ratio, defined as the difference in story displacements between two consecutive floors divided by story height. Consistent with previous studies [10], the time history of drift was obtained with a time increment of 0.1 seconds for all models to gather sufficient random data.…”

Section: Check For Serviceabilitymentioning

confidence: 80%

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Enhancing Seismic Performance of RC Buildings: A Reliability-Based Approach to Shear Wall Positioning

Khand,

Poudel

2024

Preprint

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This study addresses the significant threat posed by earthquakes, emphasizing the importance of selecting earthquake-resistant structural systems to mitigate property damage and loss of life. Shear walls, ubiquitous in construction, play a critical role in fortifying concrete structures against lateral forces, enhancing structural rigidity, and optimizing space utilization. Reinforced concrete (RC) walls, valued for their strength and stiffness, are preferred for tall buildings and elevator shafts, with their strategic placement and quantity influencing structural integrity, operational efficiency, and project costs. Recognizing the pivotal role of soil-structure interaction (SSI) in governing structural flexibility, this study advocates for a reliability-based optimization (RBO) framework for positioning shear walls, systematically addressing uncertainties, implementing risk mitigation strategies, and ensuring compliance with industry standards. Leveraging advanced reliability analysis techniques and optimization methodologies, our research aims to identify the most effective shear wall locations considering both serviceability and strength criteria while accounting for SSI effects. By integrating these considerations, our proposed approach attempts to enhance structural reliability and augment seismic performance, contributing to the resilience of built environments in earthquake-prone regions.

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Section: Check For Serviceabilitymentioning

confidence: 80%

“…Foundations play a pivotal role in SSI, transferring stresses and deformations between soil and structure [10]. Recent advancements in computational efficiency have led to the adoption of Reliability-Based Design Optimization (RBDO) to enhance the structural performance and safety of Reinforced Concrete (RC) buildings [11].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Seismic Performance of RC Buildings: A Reliability-Based Approach to Shear Wall Positioning

Khand,

Poudel

2024

Preprint

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“…Pada bangunan beton bertingkat dinding geser berfungsi untuk menahan beban lateral yang timbul dari beban angin dan beban gempa yang berkekuatan sedang sampai dengan kekuatan tinggi. Jumlah dan lokasi dinding geser memiliki peran penting dalam mengendalikan respon bangunan sehingga perlu dioptimalkan [10]. Oleh karena itu, Penelitian dilakukan dengan menambahkan dinding geser di posisi selain lift.…”

Section: Pendahuluanunclassified

Analisis Pengaruh Penambahan Dinding Geser terhadap Perilaku Struktur Gedung Sistem Ganda

Nursani,

Noor

2023

J-Sil

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Beban gempa merupakan beban yang harus sangat diperhitungkan dalam merencanakan kekuatan struktur gedung terutama di daerah rawan gempa. Beban gempa dapat mengakibatkan bangunan mengalami gerakan pada arah horizontal dan menyerang titik lemah struktur. Dinding geser merupakan salah satu komponen struktural pada gedung yang dapat meningkatkan kekakuan gedung. Terdapat struktur gedung 7 lantai yang menggunakan sistem ganda dengan dinding geser di bagian lift. Penelitian dilakukan dengan menambahkan dinding geser pada struktur dengan tujuan membandingkan perilaku struktur sebelum dan setelah penambahan dinding geser. Perhitungan analisis struktur menggunakan bantuan perangkat lunak untuk membuat pemodelan dan mendapatkan hasil gaya dalam yang terjadi. Output gaya dalam digunakan untuk menghitung kapasitas struktur. Hasil penelitian menunjukan terdapat perbandingan antara perilaku struktur sebelum dan setelah penambahan dinding geser. Apabila simpangan horizontal, gaya geser dasar dan waktu getar alami melebihi syarat aman, maka gedung berpotensi mengalami kerusakan sampai keruntuhan. Struktur dengan penambahan dinding geser dapat menimalisir simpangan antar lantai sehingga kekakuan struktur lebih besar.

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“…Shear walls also tend to be installed in the existing structural frame. It is described as a vertical concrete slab constructed on a particular side of the building to enhance its rigidity and bind the largest lateral shear force that occurs due to seismic activities [11]- [13]. However, erecting shear walls in critical locations on the multi-story structure provides the rigidity required for resisting horizontal load economically.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Retrofitting Strategies of Low-to-Mid-Rise Reinforced Concrete Structure Based on Its Seismic Fragility

Rahma¹,

Sangadji²,

Virawan³

et al. 2023

Int. J. Adv. Sci. Eng. Inf. Technol.

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In earthquake-prone regions such as Indonesia, this situation has drawn public attention and led to difficulties in implementing certain policies and decision-making. One of the challenging issues in seismic risk reduction is evaluating the efficacy of seismic retrofitting the existing low-to-mid reinforced concrete building. Therefore, this research evaluates the retrofitting of low-tomid-rise reinforced concrete structures to evaluate the efficacy of the retrofitting strategy rationally using Fiber Reinforced Plastic (FRP), Buckling Restrained Braced Frame (BRBF), and shear wall strategies. Rusunawa at Cilacap, a mid-rise RC apartment for lowincome people, was selected as a benchmark building to compare existing and retrofitted seismic fragility. Furthermore, a 3D computer model was developed to predict the seismic response of the structure using a nonlinear static (pushover) analysis. The pushover method produces a capacity curve, showing that the unreinforced structure has a maximum base shear value of 15.2x10 3 kN. While the reinforcement of low to medium rise reinforced concrete structures using the Fiber Reinforced Plastic strategy has a maximum base shear value of 15.3x10 3 kN, then reinforcement using the Buckling Restrained Braced Frame strategy with a maximum base shear value of 16.2x10 3 kN. The shear wall reinforcement has a value maximum base shear of 19.7x103 kN. The capacity curves as the analysis outputs were then converted into the fragility and used to rationalize the probabilistic value of the damage states between existing and retrofitted buildings.

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Reliability-based optimization of shear walls in RC shear wall-frame buildings subjected to earthquake loading

Cited by 9 publications

References 26 publications

Enhancing Seismic Performance of RC Buildings: A Reliability-Based Approach to Shear Wall Positioning

Enhancing Seismic Performance of RC Buildings: A Reliability-Based Approach to Shear Wall Positioning

Analisis Pengaruh Penambahan Dinding Geser terhadap Perilaku Struktur Gedung Sistem Ganda

Evaluating Retrofitting Strategies of Low-to-Mid-Rise Reinforced Concrete Structure Based on Its Seismic Fragility

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