2. The beam shown is prestressed using a bonded (stress relieved tendons) with a specified tensile strength of prestressing tendons fpy = 1350 MPa, andfc' = 35 MPa. The area of prestressed reinforcement in tension zone Aps = 1000 mm². The specified yield strength of prestressing tendons fpy = 1160MPa.0.85fc'Ca430N.A.|(d-a/2)Ap=1000T=Ap,Sps250a. 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.

Considering the free body diagram:

2. The beam shown is prestressed using a bonded (stress relieved tendons) with a specified tensile strength of prestressing tendons fpu = 1350 MPa, a fc' = 35 MPa. The area of prestressed reinforcement in tension zone Aps = 1000 mm2. The specified yield strength of prestressing tendons fpy = 1160 %3D MPа. 0.85fc' a 430 NA. -- (d-a/2)

2. The beam shown is prestressed using a bonded (stress relieved tendons) with a specified tensile strength of prestressing tendons fpu = 1350 MPa, a fc' = 35 MPa. The area of prestressed reinforcement in tension zone Aps = 1000 mm2. The specified yield strength of prestressing tendons fpy = 1160 %3D MPа. 0.85fc' a 430 NA. -- (d-a/2)

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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