4. Given the following data of prestressed rectangular beam Beam dimension; b x h = 300 mm x 600 mm Loads; Super imposed deadload = 5 kN/m, Live load = 15 kN/m Unit weight of concrete = 23 kN/m³ Simple supported beam with a span of 12 m Initial Presstressed = 1750 kN Eccentricity 220 mm Presstress loss at service load = 15% a) Calculate the stress at bottom fiber at end span due to initial presttressing only b) Calculate the stress at the top fiber of the beam at midspan due to the service loads and prestressing force(loss of presstress is 15%) c) Calculate the maximum additional uniform load that the beam can be subjected without producing tensile stress in conrete

4. Given the following data of prestressed rectangular beam Beam dimension; b x h = 300 mm x 600 mm Loads; Super imposed deadload = 5 kN/m, Live load = 15 kN/m Unit weight of concrete = 23 kN/m³ Simple supported beam with a span of 12 m Initial Presstressed = 1750 kN Eccentricity 220 mm Presstress loss at service load = 15% a) Calculate the stress at bottom fiber at end span due to initial presttressing only b) Calculate the stress at the top fiber of the beam at midspan due to the service loads and prestressing force(loss of presstress is 15%) c) Calculate the maximum additional uniform load that the beam can be subjected without producing tensile stress in conrete

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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