Load Balancing Method Load Balancing MethodA rectangular pre stressed concrete beam 450 mm x 700 mm is simply supported having a span of 8 m. The beam carries a super imposed service live load of 30 kN/m. The only service dead load is the weight of the beam. The parabolic pre stressing tendon is located as shown and is subjected to an effective pre stress force of 1338 kN (neglect any prestress losses). Using balancing load method,LL = 30 kN/mcentroidat axis'of concrete8mParabolic tendon450 mm Z350mm750mm350mm1504 m4 m:0. 154 m10.1511. Determine the flexural stress at the bottom at the midspan at transfer.2. Determine the flexural stress at the bottom at the midspan when the member is under full-service load.3. Determine the flexural stress at the top at the midspan when the member is under full-service load.

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Arectangular pre stressed concrete beam 450 mm 700 mm is simply supported having a span of m. The beam carries asuper imposed service live load of 30Nm. The only service dead load is the weight of the beam. The parabolic pre stressing tondon is located as shown and is subjected to an effective pre stress force of 1338 N neglect any pre stress lossesi. Using balancing load method LL - 30 kN/m compreidal fcone Parlic d 450 m 750 1350 1. Determine the fieural stress aat the bottom at tthe midpan at transter. 2. Determine the fieural stresa 3. Detormine the fieural stress a the midpan when the member is under uservice load. midspan when tthe member is undertservice load

Arectangular pre stressed concrete beam 450 mm 700 mm is simply supported having a span of m. The beam carries asuper imposed service live load of 30Nm. The only service dead load is the weight of the beam. The parabolic pre stressing tondon is located as shown and is subjected to an effective pre stress force of 1338 N neglect any pre stress lossesi. Using balancing load method LL - 30 kN/m compreidal fcone Parlic d 450 m 750 1350 1. Determine the fieural stress aat the bottom at tthe midpan at transter. 2. Determine the fieural stresa 3. Detormine the fieural stress a the midpan when the member is under uservice load. midspan when tthe member is undertservice load

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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