Studying the Effects of Opening Size and Location on Punching Shear Resistance of Flat Slabs Using ANSYS V.19

IF 0.8 Q3 ENGINEERING, MULTIDISCIPLINARY

International Journal of Engineering Research in Africa Pub Date : 2023-12-18 DOI:10.4028/p-IT6Xm6

Naglaa G. Fahmy, Hanaa Gamal Mohammed, L.M. Abd el-Hafez, Alaa Y. Abouelezz

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Abstract

To validate the accuracy of ANSYS V.19, an experimental model based on a previous study was used to determine the typical values of crack pattern, ultimate load, and deflection. The model was a flat slab with an internal column with dimensions of 1000 × 1000 × 100 mm³. Four groups used a slab with an edge column in parametric research. The first group studied the opening size relative to the column face. The second group of specimens studied opening sizes close to column corners. The third group consisted of four specimens: two had openings in front of the column face and two in front of the column corner to study how opening distance affected flat slab behaviour. The fourth group examined the optimum opening arrangement in slabs with two openings around the column. The findings showed that flat slab openings at the column corner had higher ultimate load capacity than those at the column face; however, increasing opening dimensions beyond the column dimension decreases punching shear capacity. If the column needs two openings, place them on opposite faces or near the corners; this minimizes ultimate load reduction.

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使用 ANSYS V.19 研究开口尺寸和位置对平板抗冲剪性能的影响

为了验证 ANSYS V.19 的准确性，我们使用了一个基于先前研究的实验模型来确定裂纹模式、极限荷载和挠度的典型值。该模型为带内柱的平板，尺寸为 1000 × 1000 × 100 mm³。在参数研究中，有四个小组使用了带有边柱的板。第一组研究了相对于柱面的开口尺寸。第二组试样研究了靠近柱角的开口尺寸。第三组由四个试样组成：两个在柱面前面开孔，两个在柱角前面开孔，以研究开孔距离对平板行为的影响。第四组研究了柱周围有两个开口的平板的最佳开口布置。研究结果表明，在柱角处开洞的平板比在柱面处开洞的平板具有更高的极限承载能力；但是，将开洞尺寸增大到超过柱的尺寸会降低冲剪能力。如果柱子需要两个开口，则应将其放在相对的面上或靠近角的位置；这样可最大限度地减少极限荷载。

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

International Journal of Engineering Research in Africa ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.80

自引率

14.30%

发文量

期刊介绍： "International Journal of Engineering Research in Africa" is a peer-reviewed journal which is devoted to the publication of original scientific articles on research and development of engineering systems carried out in Africa and worldwide. We publish stand-alone papers by individual authors. The articles should be related to theoretical research or be based on practical study. Articles which are not from Africa should have the potential of contributing to its progress and development.