The lintel of prestressed reinforced concrete in the figure below is 1.50 m long. The concrete...
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The lintel of prestressed reinforced concrete in the figure below is 1.50 m long. The concrete encloses one steel reinforcing rod with cross-sectional area 1.00 cm. The rod joins two strong end plates. The cross-sectional area of the concrete perpendicular to the rod is 47.5 cm2. Young's modulus for the concrete is 3.00 x 1010 N/m2. After the concrete cures and the original tension T, in the rod is released, the concrete is to be under compressive stress 6.55 x 106 N/m?. 1.50 m (a) By what distance will the rod compress the concrete when the original tension in the rod is released? mm (b) What is the new tension T, in the rod? KN (c) The rod will then be how much longer than its unstressed length? mm (d) When the concrete was poured, the rod should have been stretched by what extension distance from its unstressed length? mm (e) Find the required original tension T, in the rod. kN The lintel of prestressed reinforced concrete in the figure below is 1.50 m long. The concrete encloses one steel reinforcing rod with cross-sectional area 1.00 cm. The rod joins two strong end plates. The cross-sectional area of the concrete perpendicular to the rod is 47.5 cm2. Young's modulus for the concrete is 3.00 x 1010 N/m2. After the concrete cures and the original tension T, in the rod is released, the concrete is to be under compressive stress 6.55 x 106 N/m?. 1.50 m (a) By what distance will the rod compress the concrete when the original tension in the rod is released? mm (b) What is the new tension T, in the rod? KN (c) The rod will then be how much longer than its unstressed length? mm (d) When the concrete was poured, the rod should have been stretched by what extension distance from its unstressed length? mm (e) Find the required original tension T, in the rod. kN
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Related Book For
College Algebra Graphs and Models
ISBN: 978-0321845405
5th edition
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
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