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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Parametric Studies on Reinforced Concrete Shear Walls: An Engineering Response to Einstein’s Riddle?
Author(s): Firooz Emamy Farvashany
Publication: Structural Journal
Appears on pages(s): 1099-1108
Keywords: high-strength concrete; optimization; shear strength; shear walls; simulation
Abstract:This paper presents a new equation proposed for the prediction of shear strength of shear wall panels of normal- and high-strength concrete. A computer simulator was developed and used for obtaining a rich pool of data by analyzing a wide range of different shear walls. Contributions of parameters such as concrete strength, height-to-length ratio, axial load, horizontal reinforcement, and vertical reinforcement were considered. A previously developed event simulator was used to simulate hundreds of full-scale shear wall tests with different parameters. Tens of different equations were considered based on those currently used in major codes, with different combinations of terms used in the equations. Then, using an optimization process, the best proposed equation was chosen by finding the best fit to the pool of data obtained from analytical results of the simulator. The newly proposed equation was then compared with predictions by existing codes using available experimental data found in the literature. Based on calculations of mean value and standard deviation for the ratios of predicted shear strength to experimental values, it was found that the newly proposed equation predicts the shear strength of shear walls better than equations previously proposed by design codes.
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