An I-shaped beam with overhang at both sides is shown below. The left figure shows the cross-sectional dimensions, while the right figure shows the triangular load acting on the on the beam. The prestressed cables are placed at an eccentricity e = 430 mm below the neutral axis. The cables are subjec- ted to a final prestressing force of P= 915 kN. 525mm w = 82.48 kN/m 1105mm OB 535 mm 6.48 m 8m 17.12 m 540mm 1095mm 1. Calculate the moment of inertia of the section with respect to the strong axis. 2. Calculate the total longitudinal stress at the top fibers at point A. 3. Calculate the total longitudinal stress at the bottom fibers at point B.

An I-shaped beam with overhang at both sides is shown below. The left figure shows the cross-sectional dimensions, while the right figure shows the triangular load acting on the on the beam. The prestressed cables are placed at an eccentricity e = 430 mm below the neutral axis. The cables are subjec- ted to a final prestressing force of P= 915 kN. 525mm w = 82.48 kN/m 1105mm OB 535 mm 6.48 m 8m 17.12 m 540mm 1095mm 1. Calculate the moment of inertia of the section with respect to the strong axis. 2. Calculate the total longitudinal stress at the top fibers at point A. 3. Calculate the total longitudinal stress at the bottom fibers at point B.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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