Seismic Performance Evaluation of Special RC Frames with Gravity Steel Columns under the Base Level

Zaherdannak, Amin; Shabani, Amirhosein; Erfani, Saeed

doi:10.1155/2020/8825258

Cited by 5 publications

(3 citation statements)

References 27 publications

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“…2-dimensional (2D) models are suitable for buildings with simple plan forms that lack mass or stiffness cross-coupling between orthogonal horizontal directions. Although 2D numerical models are computationally efficient, they are limited to modeling planar structures focusing on a motion in a single plane direction (Zaherdannak et al, 2020). 2D models do not capture the full 3D behavior of structures (Park et al, 2009).…”

Section: Open Access Guismentioning

confidence: 99%

A review of graphical user interfaces of OpenSees software framework

Shabani

2023

Front. Built Environ.

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Seismic vulnerability assessment is crucial for evaluating the resilience of structures. OpenSees, an open-access and versatile tool, plays a pivotal role in accurately simulating the complex behavior of structures subjected to seismic loads. However, lacking a built-in graphical user interface (GUI) is one of the limitations of OpenSees that can hinder usability and accessibility. Moreover, users must rely on command-line inputs and scripts for interaction, potentially limiting its adoption by non-programmers. To address this, several GUIs were designed as pre- and post-processor for OpenSees. In this study, 15 GUIs were categorized as open access or commercial. The functionalities and features of the GUIs, such as open-source nature, three-dimensional (3D) modeling and visualization capabilities, automation of incremental dynamic analysis (IDA), and simplification of soil-structure interaction (SSI) modeling, were examined. Note that certain GUIs were introduced with a focus on modeling and analysis of specific structures that were reviewed in this study. This mini-review aims to guide OpenSees users in choosing an appropriate GUI for their projects and support developers in improving existing GUI functionality or creating advanced GUIs that comprehensively cater to users’ needs.

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Section: Open Access Guismentioning

confidence: 99%

A review of graphical user interfaces of OpenSees software framework

Shabani

2023

Front. Built Environ.

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“…The aforementioned studies offer methodologies and insight for the quantitative evaluation of seismic damage in three-dimensional structures. Of course, the development of finite element software such as OpenSees 3.5.0 [17] and numerical analysis methods such as incremental dynamic analysis of RC buildings [18,19] also provide a basis for the study. Offering open-source flexibility and a broad range of applications, OpenSees plays a critical role in the precise modeling of complex structural behaviors under seismic loads [20].…”

Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Seismic Damage Assessment Method for RC Structures Based on Multi-Mode Damage Model

Guo,

Liu,

Wang

et al. 2024

Buildings

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To rationally evaluate the seismic damage of RC structures comprehensively and multi-dimensionally, a damage index calculation method is proposed. This is a macroscopic global seismic damage model that considers torsional damage, damage in two perpendicular horizontal directions, as well as the overall damage, based on the modal characteristics of the three-dimensional structure and the multi-mode damage model. Formulas are derived, and the steps for damage evaluation are summarized. To better illustrate the results of the proposed method, an example of an asymmetric 6-story frame-shear wall structure is built using the OpenSees program. Thirteen ground motions are selected for incremental dynamic analysis. The structure’s damage indexes are evaluated according to the proposed method and compared with the corresponding structural responses, He et al.’s index, and the Final Softening index. The results demonstrate that the proposed method can fully reflect the macroscopic damage state of the structure from different perspectives. Additionally, the results show that, despite the ground motion only acting in the y-direction, the structure exhibits responses and damage in both the x-direction and the torsional direction. The overall damage to the structure is primarily controlled by the torsional damage, attributed to the asymmetric arrangement of shear walls. The torsional effect is the key factor leading to the failure of asymmetric structures during earthquakes. Therefore, ensuring the torsional strength of the structure is crucial during the structural design process.

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“…Soil-structure interaction (SSI) is an effective parameter on the results from the structural analyses of the numerical models of structures, including historical masonry towers (Anand and Kumar 2018). In order to simplify the modeling procedure, SSI was neglected in some studies, but the basement level structural elements were modeled (Shabani and Erfani 2020, Zaherdannak et al 2020). Various methods have been presented for considering SSI effects, i.e., modeling springs, dashpots, or the soil layers with solid elements (Çarhoglu and Usta 2018, Fathi et al 2020, Hökelekli and Al-Helwani 2020.…”

Section: Introductionmentioning

confidence: 99%

Structural Model Updating of a Historical Stone Masonry Tower in Tønsberg, Norway

Shabani

Ademi

Kioumarsi

2021

Lecture Notes in Civil Engineering

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Conservation of historical structures plays a pivotal role in every nation, and numerical modeling of historic buildings is an essential part of a conservation methodology. Since deriving the mechanical properties of construction materials using destructive tests is usually not allowed, and most of the cultural heritage assets are so complicated in architecture, numerical modeling of historic buildings is challenging for the analysts. Therefore, in this study, a non-invasive approach for numerical simulation of historic structures has been proposed and applied on a historical stone masonry tower (Slottsfjell tower) in the city of Tønsberg, Norway. Two types of sensors were utilized for finite element modeling of the stone masonry tower. Firstly, three-dimensional (3D) laser scanners were used as a fast and precise tool to provide a finite element model of the case study with and without considering soil-structure interaction. Secondly, operational modal analysis (OMA) was performed using accelerometers to derive the tower's dynamic characteristics. Finally, as a preliminary result of the case study in the context of a European project, the produced finite element models' mechanical properties are updated based on the OMA results, and the effect of considering soil-structure interaction has been investigated.

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Seismic Performance Evaluation of Special RC Frames with Gravity Steel Columns under the Base Level

Cited by 5 publications

References 27 publications

A review of graphical user interfaces of OpenSees software framework

A review of graphical user interfaces of OpenSees software framework

A Three-Dimensional Seismic Damage Assessment Method for RC Structures Based on Multi-Mode Damage Model

Structural Model Updating of a Historical Stone Masonry Tower in Tønsberg, Norway

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