The simply supported I-beam shown in cross-section and elevation is to carry a uniform service live load totalling 8 kN/m over 12m span, in addition to its own weight. The beam will be pretensioned using multiple seven-wire strands, eccentricity is 130mm and constant. The 28-day compressive strength of concrete is 40 Mpa. Calculate deflections

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
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ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Saeed Moaveni
Chapter7: Length And Length-related Variables In Engineering
Section: Chapter Questions
Problem 42P
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The simply supported I-beam shown in cross-section and elevation is to carry a uniform service live load totalling 8 kN/m over 12m span, in addition to its own weight. The beam will be pretensioned using multiple seven-wire strands, eccentricity is 130mm and constant. The 28-day compressive strength of concrete is 40 Mpa. Calculate deflections
8 kN/m
300mm
130mm
125mm
- 100mm
350mm
130mm
A= 110,000 mm2
125mm
1. = 4.685 x 109 mm4
Transcribed Image Text:8 kN/m 300mm 130mm 125mm - 100mm 350mm 130mm A= 110,000 mm2 125mm 1. = 4.685 x 109 mm4
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