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Prediction of the Punching Load Strength of SCS Slabs with Stud-Bolt Shear Connectors Using Numerical Modeling and GEP Algorithm | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 4، دوره 11، شماره 3 - شماره پیاپی 31، آبان 2023، صفحه 68-87 اصل مقاله (2.23 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2022.26528.1628 | ||
| نویسندگان | ||
| Mehdi Yousefi1؛ Mohammad Golmohammadi* 2؛ Seyed Hashem Khatibi3؛ Majid Yaghoobi2 | ||
| 1Civil Engineering Department, Faculty of Maritime Engineering, Chabahar Maritime University, Chabahar, Iran | ||
| 2Civil Engineering and Architectural Department, Faculty of Engineering, University of Torbat Heydarieh, Torbat Heydarieh, Iran | ||
| 3Civil Engineering Department, Sistan and Baluchestan University, Zahedan, Iran | ||
| تاریخ دریافت: 23 اسفند 1400، تاریخ بازنگری: 15 مرداد 1401، تاریخ پذیرش: 30 شهریور 1401 | ||
| چکیده | ||
| Using bolt shear connectors in Steel-Concrete-Steel (SCS) slabs is very important due to producing a complete steel plates connection and adjusting the sandwich thickness desirably. Therefore, in the present research, a numerical study is conducted on the flexural behavior of SCS sandwich slabs with stud-bolt shear connectors under the effect of the quasi-static concentrated load. For this purpose, first, the experimental specimens extracted from the previously published study were numerically modeled and quasi-statically analyzed using explicit dynamic analysis. Then based on the tests, the models were validated. Subsequently, the effect of the parameters, including the thickness of steel plates, stud-bolts diameter, the concrete core thickness, center-to-center distance of stud-bolt connectors, and the concrete core strength was evaluated based on the numerical models on the failure modes and the force-displacement curve. Finally, using the experimental setup and gene expression programming (GEP) algorithm, several numerical models were planned to predict the maximum strength of the slabs and a simple relation was proposed. The maximum strength resulting from the proposed relation and numerical models had an acceptable agreement with an error of 11% based on mean absolute percentage error (MAPE). | ||
| کلیدواژهها | ||
| Steel-concrete-steel Slab؛ Stud-bolt connector؛ Finite element؛ Gene expression programming؛ Failure modes | ||
| مراجع | ||
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