مشخصات پژوهش

عنوان	Reliability-based design of reinforced concrete beams for simultaneous bending, shear, and torsion loadings
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Reliability-Based Design; Reinforced Concrete Beam; Safety Index; Load and Resistance Factors; Monte-Carlo Simulation.
چکیده	The design of Structural members is targeted in resisting the loads such that the safety of the structure is preserved regarding different conditions of loadings. The traditional design method in concrete standards is based on the load and resistance factors regardless of the random nature of them. Uncertainties in design parameters such as load and resistance have great influences in the safety of the structure and using constant coefficients caused unsafe and uneconomical designs. The present research is focused on a probabilistic design of reinforced concrete beams subjected to simultaneous actions of bending, shear, and torsion. For this purpose, analytical formulas for the limit states have been developed to combine different stresses. Monte Carlo simulation method is used to estimate the safety indexes for three different T, rectangular and L-shaped cross-sections. Then, the load and resistance factors have been calculated in different safety indexes, and the influence of load and resistance factors based-on ACI standard has been examined. The proposed method is applicable to all concrete standards. However, here the procedures are based on the ACI standard.
پژوهشگران	جلال اکبری (نفر اول)، فائزه جعفری (نفر دوم)