{"title":"Design and numerical analysis of reusable column base connection with pinned energy dissipators","authors":"","doi":"10.1016/j.jcsr.2024.109012","DOIUrl":null,"url":null,"abstract":"<div><p>This paper represents a comprehensive numerical analysis of a reusable column base connection previously proposed by the authors. The energy dissipator utilised in the proposed connection was investigated from the aspect of the design procedure, experimental study, and numerical simulation. The test specimens were designed following the design procedure and served as a reference for comparison with the finite element (FE) models in ABAQUS. The findings indicate that the energy dissipator behaves in accordance with expectations, affirming the feasibility of the modelling approach. To investigate the impact of key design parameters on the global and local behaviours of the proposed connection, an advanced FE model was developed and sufficiently validated against the experimental data from prior research by the authors. Three sets of FE models were constructed corresponding to three design parameters, including the global slenderness of the reduced section, the strength factor, as well as the deflection angle of the dissipative plate. The parametric study focuses on the energy dissipation capacity and reusability. The outcomes contribute to a deeper comprehension of the assumptions and constraints of the design process, offering practical suggestions to enhance the seismic performance of the proposed connection.</p></div>","PeriodicalId":15557,"journal":{"name":"Journal of Constructional Steel Research","volume":null,"pages":null},"PeriodicalIF":4.0000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Constructional Steel Research","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143974X24005625","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
This paper represents a comprehensive numerical analysis of a reusable column base connection previously proposed by the authors. The energy dissipator utilised in the proposed connection was investigated from the aspect of the design procedure, experimental study, and numerical simulation. The test specimens were designed following the design procedure and served as a reference for comparison with the finite element (FE) models in ABAQUS. The findings indicate that the energy dissipator behaves in accordance with expectations, affirming the feasibility of the modelling approach. To investigate the impact of key design parameters on the global and local behaviours of the proposed connection, an advanced FE model was developed and sufficiently validated against the experimental data from prior research by the authors. Three sets of FE models were constructed corresponding to three design parameters, including the global slenderness of the reduced section, the strength factor, as well as the deflection angle of the dissipative plate. The parametric study focuses on the energy dissipation capacity and reusability. The outcomes contribute to a deeper comprehension of the assumptions and constraints of the design process, offering practical suggestions to enhance the seismic performance of the proposed connection.
本文对作者之前提出的一种可重复使用的柱基连接进行了全面的数值分析。本文从设计程序、实验研究和数值模拟三个方面对拟议连接中使用的消能装置进行了研究。试验试件是按照设计程序设计的,可作为与 ABAQUS 中的有限元(FE)模型进行比较的参考。研究结果表明,消能装置的性能符合预期,这也证实了建模方法的可行性。为了研究关键设计参数对拟议连接的整体和局部行为的影响,作者开发了一个先进的 FE 模型,并根据先前研究的实验数据进行了充分验证。根据三个设计参数,包括减小截面的整体细长度、强度因子以及消能板的挠曲角,构建了三套 FE 模型。参数研究的重点是消能能力和可重复使用性。研究结果有助于加深对设计过程中的假设和限制因素的理解,为提高拟议连接的抗震性能提供了实用建议。
期刊介绍:
The Journal of Constructional Steel Research provides an international forum for the presentation and discussion of the latest developments in structural steel research and their applications. It is aimed not only at researchers but also at those likely to be most affected by research results, i.e. designers and fabricators. Original papers of a high standard dealing with all aspects of steel research including theoretical and experimental research on elements, assemblages, connection and material properties are considered for publication.