การศึกษาเปรียบเทียบแบบจำลองกำลังรับแรงเฉือนของกำแพงเตี้ยคอนกรีตเสริมเหล็ก ภายใต้แรงแผ่นดินไหว

วีระพงษ์ ชมชายผล; ปนัสย์ชัย เชษฐ์โชติศักดิ์; จารึก ถีระวงษ์

วีระพงษ์ ชมชายผล สาขาวิชาวิศวกรรมโยธา คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน วิทยาเขตขอนแก่น
ปนัสย์ชัย เชษฐ์โชติศักดิ์ สาขาวิชาวิศวกรรมโยธา คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลอีสาน วิทยาเขตขอนแก่น
จารึก ถีระวงษ์

Keywords: squat wall, shear strength, earthquake, reinforced concrete

Abstract

Seven state-of-the-art shear strength models for reinforced concrete squat walls available in the literature were reviewed and assessed against a large database of 657 test results covering a wide range of important parameters. The selected shear strength models compared in this study consist of ACI 318-19, Sánchez-Alejandre and Alcocer, Gulec and Whittaker, Kassem, Ning and Lee,Hwang et al., Baghi et al. The comparative results indicated that the approach of Gulec and Whittaker predicted the shear strength of squat walls more precisely than the other models with the lowest coefficient of variation and mean absolute error, while the ACI 318-19 method showed the largest error and uncertainty. It was also found that most of methods considered herein gave the relatively conservative predictions for the members with low concrete strength.

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References

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Shear Strength Models for Reinforced Concrete Squat Walls Under Seismic Loading: A Comparative Study

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