H.W No.1: The concrete I-beam of figure is pretensioned with four bounded strandedcables having total area (371 mm²). Eccentricity of the steel varies parabolically from 0at the support to 193 mm at the center of 9 m span. The effective stress in steel afterlosses is 910 MPa.76 mm254 mm102 mm304 mm102 mm193 mm9 ma-what superimposed load will produce a balanced condition of external equivalentprestress load, such that uniform axial compression will be obtained in the concrete.b-what superimposed uniform distributed load will produce cracking of the beam, giventhe modulus of rupture f-3.28 MPa.c-compute the flexural strength of the beam and compare with the cracking moment.Use: fe = 27.6 MPa, fpy= 1469 MPa, fpu= 1724 MPa.

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Answered: H.W No.1: The concrete I-beam of figure…

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

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.1.3P

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