Example 14.12 A prestressed rectangular concrete beam of size 150 x 450 mm is prestressed by 5 wires of 6 mm diameter located at an eccentricity of 45 mm. The initial prestress in the wires is 1350 N/mm2. What is the loss of stress in steel due to creep of concrete? Take E = 210 kN/mm², E = 35 kN/mm², ultimate creep strain = 41 x 10-6 mm/mm per N/mm2, creep coefficient = 1.6.

Example 14.12 A prestressed rectangular concrete beam of size 150 x 450 mm is prestressed by 5 wires of 6 mm diameter located at an eccentricity of 45 mm. The initial prestress in the wires is 1350 N/mm2. What is the loss of stress in steel due to creep of concrete? Take E = 210 kN/mm², E = 35 kN/mm², ultimate creep strain = 41 x 10-6 mm/mm per N/mm2, creep coefficient = 1.6.

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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