2. The beam shown is prestressed using a bonded(stress relieved tendons) with a specified tensilestrength of prestressing tendons fpu = 1350 MPa,and fc' = 35 MPa. The area of prestressedreinforcement in tension zone Aps = 1000 mm2.The specified yield strength of prestressingtendons fpy =1160 MPa.%3D%3Dру0.85fc'a430N.A.|(d-a/2)A=1000T=Apsfps250a. Determine the value of the stress in prestressedreinforcement at nominal strength.b. Determine the value of the depth of thecompression block.c. Which of the following gives the ultimatemoment capacity of the prestressed beam.

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Engineering

Civil Engineering

The beam shown is prestressed using a bonded

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.3P: A tensile test was performed on a metal specimen having a circular cross section with a diameter 0....

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Question

2. The beam shown is prestressed using a bonded
(stress relieved tendons) with a specified tensile
strength of prestressing tendons fpu = 1350 MPa,
and fc' = 35 MPa. The area of prestressed
reinforcement in tension zone Aps = 1000 mm2.
The specified yield strength of prestressing
tendons fpy =1160 MPa.
%3D
%3D
ру
0.85fc'
a
430
N.A.
|(d-a/2)
A=1000
T=Apsfps
250
a. Determine the value of the stress in prestressed
reinforcement at nominal strength.
b. Determine the value of the depth of the
compression block.
c. Which of the following gives the ultimate
moment capacity of the prestressed beam.

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