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An analytical investigation into the lateral load response of curved RC shear walls
The Structural Design of Tall and Special Buildings ( IF 2.4 ) Pub Date : 2024-03-25 , DOI: 10.1002/tal.2097
Hatef Abdoos 1 , Alireza Khaloo 1 , Mohammad Tabiee 1
Affiliation  

SummaryCurved structural elements can extensively be employed in engineering applications, to which structural designers and architects can resort in order to cope with the existing structural limitations and architectural challenges. In this regard, the current study is an attempt to provide insight into the overall performance of curved reinforced concrete (RC) shear walls (CRCSWs) due to the gaps existing in the literature. In order to fulfill this purpose, a CRCSW with general cross‐section has been considered subjected to the applied bi‐lateral and axial loadings. Equivalent non‐rectangular T‐, U‐, and L‐shaped sections are then introduced in lieu of a curved section. Thereafter, the stress and displacement distributions of CRCSWs have been analytically established. In order to highlight the structural merits of CRCSWs, a comparative study is performed based on the six non‐dimensional parameters defined in this study. According to the comparative study conducted between the CRCSWs and the equivalent non‐rectangular flanged walls, unlike latter wall types, the shear‐lag effects do not make serious issues for the performance of CRCSWs. Furthermore, to make a more realistic judgment on the response of CRCSWs, a numerical investigation has been carried out utilizing the finite element (FE) software Abaqus. On the strength of the data obtained from the FE simulation of 90 CRCSWs in three categories of short, squat, and slender walls, a regression model has been established, which is advantageous in that it can supply a means for the initial estimation of the shear strength of CRCSWs. The average R‐factor of 0.88 indicates that the established formulations can potentially well predict the shear strength of CRCSWs. The findings of this study divulge that, in addition to the inherent aesthetical advantages of CRCSWs, these structural elements can effectively resist against bi‐directional loadings as compared with the equivalent RC walls with flanged sections.

中文翻译:

弯曲钢筋混凝土剪力墙横向荷载响应的分析研究

摘要弯曲结构构件可以广泛应用于工程应用中,结构设计师和建筑师可以利用它来应对现有的结构限制和建筑挑战。在这方面,由于文献中存在的空白,当前的研究试图深入了解弯曲钢筋混凝土(RC)剪力墙(CRCSW)的整体性能。为了实现这一目的,考虑了具有一般横截面的 CRCSW 承受所施加的双边和轴向载荷。然后引入等效的非矩形 T 形、U 形和 L 形截面来代替弯曲截面。此后,通过分析建立了 CRCSW 的应力和位移分布。为了突出 CRCSW 的结构优点,基于本研究中定义的六个无量纲参数进行了比较研究。根据 CRCSW 与等效非矩形法兰墙之间进行的比较研究,与后一种墙类型不同,剪力滞效应不会对 CRCSW 的性能造成严重问题。此外,为了对 CRCSW 的响应做出更现实的判断,利用有限元 (FE) 软件 Abaqus 进行了数值研究。根据短墙、矮墙、细墙三类90个CRCSW的有限元模拟数据,建立了回归模型,其优点是可以为剪力的初始估计提供手段。 CRCSW 的实力。平均 R 因子为 0.88,表明所建立的公式可以很好地预测 CRCSW 的剪切强度。这项研究的结果表明,除了 CRCSW 固有的美学优势之外,与具有凸缘部分的等效 RC 墙相比,这些结构元件可以有效地抵抗双向荷载。
更新日期:2024-03-25
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