Cyclic Behavior of Precast Post-Tensioned Concrete Shear Wall with and Without Opening

Journal of Structural Engineering and Geo-Techniques

دوره 12، شماره 1 - شماره پیاپی 28، مهر 2022، صفحه 1-5   

نوع مقاله: Original Manuscript

شناسه دیجیتال (DOI): 10.22094/jseg.2022.1937963.1113

نویسندگان

Ahmad Shokoohfar^{* 1}؛ peyman khorshidi²

¹Department of Civil Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran

²Department of Civil Engineering, Qazvin branch, Islamic Azad University, Qazvin, Iran

چکیده

Innovative Precast Post-Tensioned Concrete Shear Wall (PPCSW) comprises two columns as boundary elements and a main precast shear wall. Although, there have been some researches about the cyclic behavior of the PPCSWs, the investigation of the effect of openings in this system has been of less interest. The main purpose of this article is to study the effect of a standard opening on the PPCSWs. The numerical models are prepared for three different heights (3,6, and 9 stories) and their cyclic dissipated energy is compared. The concrete damage plasticity model is applied as constitutive material law. The numerical results demonstrate that by increasing the shear wall’s height, the openings become more effective. Therefore, the maximum reduction of dissipated energy belongs to the nine stories shear wall system. And, also the maximum strength reduction due to opening effects is for the nine stories shear wall system. In contrast to the strength and dissipated energy variables, the maximum initial stiffness reduction due to opening effects take place in 3 stories model.

کلیدواژه‌ها

Seismic Behavior؛ Concrete Shear Wall؛ Precast؛ Opening؛ Cyclic Behavior