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A continuous beam ABC (AB = BC = 20 m) with an overall depth of 1 m is prestressed by a continuous cable carrying a force of 300 kN. The cable profile is parabolic between the supports, with zero eccentricity at ends A and C. The cable has an eccentricity of 100 mm towards the soffit at mid span sections and 200 mm towards the top fibre at the mid support section. Calculate the reactions devel- oped at the supports due to prestress and show that the cable is concordant.

A continuous beam ABC (AB = BC = 20 m) with an overall depth of 1 m is prestressed by a continuous cable carrying a force of 300 kN. The cable profile is parabolic between the supports, with zero eccentricity at ends A and C. The cable has an eccentricity of 100 mm towards the soffit at mid span sections and 200 mm towards the top fibre at the mid support section. Calculate the reactions devel- oped at the supports due to prestress and show that the cable is concordant.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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A continuous beam ABC (AB = BC= 20 m) with an overall depth of 1 m is prestressed by a continuous cable carrying a force of 300 kN. The cable profile is parabolic between the supports, with zero eccentricity at ends A and C. The cable has an eccentricity of 100 mm towards the soffit at mid span sections and 200 mm towards the top fibre at the mid support section. Calculate the reactions devel- oped at the supports due to prestress and show that the cable is concordant.
Transcribed Image Text:A continuous beam ABC (AB = BC= 20 m) with an overall depth of 1 m is prestressed by a continuous cable carrying a force of 300 kN. The cable profile is parabolic between the supports, with zero eccentricity at ends A and C. The cable has an eccentricity of 100 mm towards the soffit at mid span sections and 200 mm towards the top fibre at the mid support section. Calculate the reactions devel- oped at the supports due to prestress and show that the cable is concordant.
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