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- W2022992723 abstract "The shear strength is an important factor in the design of prestressed concrete beams. Therefore, researchers have utilized various methods to determine the shear strength of these elements for the design purposes. To evaluate some of the proposed theoretical methods, numerous models of posttensioned beams with or without vertical prestressing are selected and analyzed using the finite element method and assuming nonlinear behavior for the materials. In this regard the validity of modeling is evaluated based on some tests results. In the second part of the study two beam specimens are built and tested and their load-deformation curve and cracking pattern are studied. The analytical results consist of compressive strut slope and mid span load deflection are compared with some experimental results, and the results of some codes' formulas. Finally comparing the results of nonlinear analysis with theexperimental values, a new formula is proposed for determining strut slopes in prestressed concrete beams." @default.
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- W2022992723 date "2012-02-25" @default.
- W2022992723 modified "2023-09-26" @default.
- W2022992723 title "Nonlinear shear strength of pre-stressed concrete beams" @default.
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