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RISS 인기검색어
- 검색키워드
- 저자 : Shyh-Jiann Hwang (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Strength and deflection prediction of double-curvature reinforced concrete squat walls
Bali, Ika,Hwang, Shyh-Jiann Techno-Press 2007 Structural Engineering and Mechanics, An Int'l Jou Vol.27 No.4
This study presents a model to better understand the shear behavior of reinforced concrete walls subjected to lateral load. The scope of the study is limited to squat walls with height to length ratios not exceeding two, deformed in a double-curvature shape. This study is based on limited knowledge of the shear behavior of low-rise shear walls subjected to double-curvature bending. In this study, the wall ultimate strength is defined as the smaller of flexural and shear strengths. The flexural strength is calculated using a strength-of-material analysis, and the shear strength is predicted according to the softened strut-and-tie model. The corresponding lateral deflection of the walls is estimated by superposition of its flexibility sources of bending, shear and slip. The calculated results of the proposed procedure correlate reasonably well with previously reported experimental results.
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Deflection prediction for reinforced concrete deep beams
Wen-Yao Lu,Shyh-Jiann Hwang,Ing-Jaung Lin 사단법인 한국계산역학회 2010 Computers and Concrete, An International Journal Vol.7 No.1
A simplified method, developed from the softened strut-and-tie model, for determining the mid-span deflection of deep beams at ultimate state is proposed. The mid-span deflection and shear strength predictions of the proposed model are compared with the experimental data collected from 70 simply supported reinforced concrete deep beams, loaded with concentrated loads located at a distance a from an end reaction. The comparison shows that the proposed model can accurately predict the mid-span deflection and shear strength of deep beams with different shear span-to-depth ratios, different concrete strengths, and different horizontal and vertical hoops.
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Shear strength of reinforced concrete dapped-end beams
Lin, Ing-Jaung,Hwang, Shyh-Jiann,Lu, Wen-Yao,Tsai, Jiunn-Tyng Techno-Press 2003 Structural Engineering and Mechanics, An Int'l Jou Vol.16 No.3
In this study, 24 high-strength concrete dapped-end beams were tested to study the effects of the amount of main dapped-end reinforcement, the nominal shear span-to-depth ratio, and the concrete strength on the shear strength of dapped-end beams. Test results indicate that the shear strength of dapped ends increases with the increase in the amount of main dapped-end reinforcement and the concrete strength. The shear strength of dapped-end beam increases with the decrease of nominal shear span-to-depth ratio. A simplified method for determining the shear strength of reinforced concrete dapped ends is also proposed in this paper. The shear strengths predicted by the proposed method and the approach of PCI Design Handbook are compared with test results. The comparison shows that the proposed method can more accurately predict the shear strength of reinforced concrete dapped-end beams than the approach of PCI Design Handbook.
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