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Problem 14.5 (One ans: 8-in. slab, d = 6.75 in., A = 0.267 in./ft at each end; A = 0.420 in.*/ft at interior supports, A,=0.267 in.*/ft in end spans, A,, =0.307 in. /ft in middle span) 16 ft 19 ft 16 ft

Problem 14.5 (One ans: 8-in. slab, d = 6.75 in., A = 0.267 in./ft at each end; A = 0.420 in.*/ft at interior supports, A,=0.267 in.*/ft in end spans, A,, =0.307 in. /ft in middle span) 16 ft 19 ft 16 ft

Structural Analysis
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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**Problem 14.5** *(One ans: 8-in. slab, d = 6.75 in., A_s = 0.267 in²/ft at each end; A_sm = 0.420 in²/ft at interior supports, A_s+ = 0.267 in²/ft in end spans, A_s+ = 0.307 in²/ft in middle span)* --- **Diagram Explanation:** The diagram illustrates a structural layout featuring a continuous beam supported at three points: 1. **Span Lengths:** - The beam consists of three spans with lengths of 16 feet, 19 feet, and 16 feet, respectively. 2. **Supports:** - There are supports illustrated beneath the beam. Two are located at each end, and there are interior supports shown through lines perpendicular to the beam. 3. **Structural Information:** - The slab is 8 inches thick. - The effective depth (d) is given as 6.75 inches. 4. **Reinforcement Areas:** - \( A_s \) (area of steel) at each end of the slab is 0.267 in²/ft. - \( A_{sm} \) (area of steel at midspan) at interior supports is 0.420 in²/ft. - \( A_s^+ \) (area of steel for positive moments) in end spans is 0.267 in²/ft. - \( A_s^+ \) in the middle span is 0.307 in²/ft. This configuration is typical of continuous beams, commonly used in construction and civil engineering for distributing loads across multiple support points, enhancing the structural stability of floors and bridges.
Transcribed Image Text:**Problem 14.5** *(One ans: 8-in. slab, d = 6.75 in., A_s = 0.267 in²/ft at each end; A_sm = 0.420 in²/ft at interior supports, A_s+ = 0.267 in²/ft in end spans, A_s+ = 0.307 in²/ft in middle span)* --- **Diagram Explanation:** The diagram illustrates a structural layout featuring a continuous beam supported at three points: 1. **Span Lengths:** - The beam consists of three spans with lengths of 16 feet, 19 feet, and 16 feet, respectively. 2. **Supports:** - There are supports illustrated beneath the beam. Two are located at each end, and there are interior supports shown through lines perpendicular to the beam. 3. **Structural Information:** - The slab is 8 inches thick. - The effective depth (d) is given as 6.75 inches. 4. **Reinforcement Areas:** - \( A_s \) (area of steel) at each end of the slab is 0.267 in²/ft. - \( A_{sm} \) (area of steel at midspan) at interior supports is 0.420 in²/ft. - \( A_s^+ \) (area of steel for positive moments) in end spans is 0.267 in²/ft. - \( A_s^+ \) in the middle span is 0.307 in²/ft. This configuration is typical of continuous beams, commonly used in construction and civil engineering for distributing loads across multiple support points, enhancing the structural stability of floors and bridges.
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