Problem 2 A Post-tensioned prestressed concrete beam is to carry a live load of 14.50 kN/m and a superimposed dead load of 12.80 kN/m. In addition to its own weight (Assumed to be 4.75 kN/m) on a 17.80 m simple span with a 75 kN concentrated force at the midspan. Normal density concrete will be used with design strength f'e 35 MPa and Pi= 1450 kN. Time- dependent losses may be assumed at 17.55 percent of the initial prestress. Determine the stress (MPa) at the extreme bottom fiber located at midspan under the final stage. 230.4 + 304.8 152.4 152.4 320.5 320.5 152.4

Problem 2 A Post-tensioned prestressed concrete beam is to carry a live load of 14.50 kN/m and a superimposed dead load of 12.80 kN/m. In addition to its own weight (Assumed to be 4.75 kN/m) on a 17.80 m simple span with a 75 kN concentrated force at the midspan. Normal density concrete will be used with design strength f'e 35 MPa and Pi= 1450 kN. Time- dependent losses may be assumed at 17.55 percent of the initial prestress. Determine the stress (MPa) at the extreme bottom fiber located at midspan under the final stage. 230.4 + 304.8 152.4 152.4 320.5 320.5 152.4

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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