Evaluation of Flexural and Shear Capacity of High Strength Steel Fiber-Reinforced Concrete Beams without Stirrups
Date Issued
2014
Date
2014
Author(s)
Wu, Yung-Fu
Abstract
A number of studies pointed out that adding steel fiber to concrete will enhance tensile strength and elastic modulus, develop ductile behavior, and improve failure mechanism. As stated in ACI-318-08, steel fiber is allowed to replace traditional stirrups under certain circumstances. Its contribution for increasing shear strength has been well-recognized.
Despite of having these advantages, steel fiber is not commonly used in practice due to the lack of design formula. In order to increase the prevalence of steel fiber concrete, quantifying the benefits of it is critical for accelerating the development of relevant regulations. The focus of this study is to evaluate the flexure strength of steel fiber concrete and shear strength. By adjusting the parameter of pure concrete base on the experimental results, the prediction formula of new shear strength that applies the principle of mechanic is generated. The data that were collected from various credible sources once again confirmed its accuracy and the range of its application.
Subjects
鋼纖維混凝土
彎鉤型鋼纖維
撓曲強度
剪力強度
Type
thesis
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