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RISS 인기검색어
- 검색키워드
- 저자 : Bernardino Chiaia (검색결과 3 건)
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Minimum reinforcement and ductility index of lightly reinforced concrete beams
Alessandro P. Fantilli,Bernardino Chiaia,Andrea Gorino 사단법인 한국계산역학회 2016 Computers and Concrete, An International Journal Vol.18 No.6
Nonlinear models, capable of taking into account all the phenomena involved in the cracking and in the failure of lightly reinforced concrete beams, are nowadays available for a rigorous calculation of the minimum reinforcement. To simplify the current approaches, a new procedure is proposed in this paper. Specifically, the ductility index, which is lower than zero for under-reinforced concrete beams in bending, is introduced. The results of a general model, as well as the data measured in several tests, reveal the existence of two linear relationships between ductility index, crack width, and the amount of steel reinforcement. The above relationships can be applied to a wide range of lightly reinforced concrete beams, regardless of the geometrical dimensions and of the mechanical properties of materials. Accordingly, if only a few tests are combined with this linear relationships, a new design-by-testing procedure can be used to calculate the minimum reinforcement, which guarantees both the control of cracking in service and the ductility at failure.
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Structural robustness of RC frame buildings under threat-independent damage scenarios
Ventura, Antonio,De Biagi, Valerio,Chiaia, Bernardino Techno-Press 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.65 No.6
This study focuses on a novel procedure for the robustness assessment of reinforced concrete (RC) framed structures under threat-independent damage scenarios. The procedure is derived from coupled dynamic and non-linear static analyses. Two robustness indicators are defined and the method is applied to two RC frame buildings. The first building was designed for gravity load and earthquake resistance in accordance with Eurocode 8. The second was designed according to the tie force (TF) method, one of the design quantitative procedures for enhancing resistance to progressive collapse. In addition, in order to demonstrate the suitability and applicability of the TF method, the structural robustness and resistance to progressive collapse of the two designs is compared.
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Structural robustness of RC frame buildings under threat-independent damage scenarios
Antonio Ventura,Valerio De Biagi,Bernardino Chiaia 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.65 No.6
This study focuses on a novel procedure for the robustness assessment of reinforced concrete (RC) framed structures under threat-independent damage scenarios. The procedure is derived from coupled dynamic and non-linear static analyses. Two robustness indicators are defined and the method is applied to two RC frame buildings. The first building was designed for gravity load and earthquake resistance in accordance with Eurocode 8. The second was designed according to the tie force (TF) method, one of the design quantitative procedures for enhancing resistance to progressive collapse. In addition, in order to demonstrate the suitability and applicability of the TF method, the structural robustness and resistance to progressive collapse of the two designs is compared.
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