Experimental and Numerical Study of the Behavior of RC Shear Wall with Opening Using Concealed Stiffeners

IF 1 Q4 ENGINEERING, CIVIL

Jordan Journal of Civil Engineering Pub Date : 2023-04-01 DOI:10.14525/jjce.v17i2.04

S. Mahadik, S. Bhagat, P. D. Gunaware, Vijay N. Patil

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Abstract

A shear wall becomes weak when an opening is provided in it. It is important to provide some arrangement in the shear wall having an opening for recovering strength loss due to the opening. It may be recovered by providing some steel profiles around the opening or at weaker sections in the shear wall having an opening. At first, the identification of weaker sections in the shear wall having an opening is important and then, the wall can be made stronger as the shear wall without an opening by strengthening weaker sections. In the present study, the performance of a shear wall having an opening subjected to horizontal cyclic loading along the plane of the shear wall in the presence of concealed stiffeners is investigated. The reduced models of shear walls with openings were tested under axial and lateral load conditions. Load-carrying capacity, deformation behavior and strain behavior of shear walls were studied with experiments and the validation of the results was made with general-purpose finite element software ANSYS. Significant improvements were observed in strength, deformation and strain behavior of a shear wall having a central opening using concealed reinforced concrete (RC) stiffeners and steel tube stiffeners. KEYWORDS: Shear wall, Strength, Stiffness, Strain, Openings, Stiffeners.

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暗藏加劲钢筋混凝土开孔剪力墙性能试验与数值研究

当在剪力墙上开一个开口时，剪力墙就会变弱。重要的是在剪力墙内布置开孔，以弥补由于开孔而造成的强度损失。它可以通过在开口周围或在有开口的剪力墙较弱的部分提供一些钢型材来恢复。首先，识别有开口的剪力墙中较弱的部分是很重要的，然后，通过对较弱的部分进行加固，使剪力墙与无开口的剪力墙一样坚固。在本研究中，有一个开孔的剪力墙的性能受到水平循环荷载沿剪力墙的平面在隐伏加强筋的存在。对带开口剪力墙的简化模型进行了轴向和侧向荷载作用下的试验研究。通过试验研究了剪力墙的承载能力、变形行为和应变行为，并利用通用有限元软件ANSYS对结果进行了验证。使用隐藏式钢筋混凝土(RC)加劲筋和钢管加劲筋，观察到具有中心开口的剪力墙的强度，变形和应变行为的显著改善。关键词:剪力墙，强度，刚度，应变，开口，加筋。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Jordan Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

2.10

自引率

27.30%

发文量

期刊介绍： I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.