A post-tensioned concrete rectangular beam consists of two 10 m spans. It is 300 mm wide and 600 mm deep. Permanent action of 25 kN/m (including self-weight) and a variable action of 15 kN/m. Cover requirements mean that center of tendon should be no closer than 100 mm from surface of concrete. Calculate following: Minimum prestress force required to balance all of permanent action at span BC. Moment at B at service. Stresses at top and bottom of section at B at service.

A post-tensioned concrete rectangular beam consists of two 10 m spans. It is 300 mm wide and 600 mm deep. Permanent action of 25 kN/m (including self-weight) and a variable action of 15 kN/m. Cover requirements mean that center of tendon should be no closer than 100 mm from surface of concrete. Calculate following: Minimum prestress force required to balance all of permanent action at span BC. Moment at B at service. Stresses at top and bottom of section at B at service.

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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