بررسی عددی دال‌های بتنی مسلح شده به ورق‌های حفره‌دار فولادی تحت بارگذاری انفجار

Peyman, Safa

Volume 17, Issue 2 (9-2022) مواد پرانرژی 2022, 17(2): 129-141 | Back to browse issues page

‎ 20.1001.1.17353629.1401.17.2.6.3

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Peyman S. بررسی عددی دال‌های بتنی مسلح شده به ورق‌های حفره‌دار فولادی تحت بارگذاری انفجار. مواد پرانرژی 2022; 17 (2) : 6
URL: http://isaem.ir/article-1-1434-en.html

بررسی عددی دال‌های بتنی مسلح شده به ورق‌های حفره‌دار فولادی تحت بارگذاری انفجار

Safa Peyman ^*

Imam Hossein University , speyman@ihu.ac.ir

Abstract: (592 Views)

This paper aims to study the numerical behavior of concrete slabs reinforced with perforated steel plates (PSPs) through nonlinear finite element (FE) analysis performed by ABAQUS. In this regard, conventional steel rebars (CSRs) are replaced with (PSPs) in the concrete slabs. Due to the particular geometry that the configuration of the hole provides, these PSPs are more integrated with surrounding concrete than CSRs. In order to numerically investigation of concrete slab under blast loading, the concrete slab reinforced with steel rebars subjected to blast loading has been modeled in ABAQUS and verified with the test results of references addressed in the literature. Moreover, in the validated model, CSRs were replaced by PSPs with an equal volume. In the following, various models with different configurations for holes are considered and determine the optimal arrangement to compare with concrete slab reinforced with CSRs and to perform in parametric study. Furthermore, a parametric study was carried out on the four independent parameters, including standoff distance, charge weight, reinforcement ratio, and PSPs yield stress. According to the results, PSPs with an equal volume of steel compared to CSRs decrease the maximum deflection by up to 40 percent and increase the ductility of reinforced concrete slabs. In addition, among the four parameters studied, standoff distance and the charge weight are the most critical parameters affecting the performance of concrete slabs reinforced with PSPs under blast loading.

Article number: 6

Keywords: Perforated Steel Plates, Blast Loading, Concrete Slab, Nonlinear Finite Element Analysis

Full-Text [PDF 6383 kb] (33 Downloads)

Type of Study: Research | Subject: سازه های مقاوم به انفجار
Published: 2023/03/21