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The flooring of a warehouse is made up of double-tee joints (DT) as shown. The joists are simply supported on a span of 7.5 m and are pre tensioned with one tendon in each stem with an initial force of 745 kN each, located at 75 mm above the bottom fiber, loss of stress at service load is 18%.

The flooring of a warehouse is made up of double-tee joints (DT) as shown. The joists are simply supported on a span of 7.5 m and are pre tensioned with one tendon in each stem with an initial force of 745 kN each, located at 75 mm above the bottom fiber, loss of stress at service load is 18%.

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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Properties of DT: • A = 200,000 mm? • I = 1880 x 10° mm4 Y: = 88 mm • Yb = 267 mm • a = 2.4 m. Compute the resulting stress in MPa at the bottom fibers at the DT at mid-span due to the service loads and pre stress force.
Transcribed Image Text:Properties of DT: • A = 200,000 mm? • I = 1880 x 10° mm4 Y: = 88 mm • Yb = 267 mm • a = 2.4 m. Compute the resulting stress in MPa at the bottom fibers at the DT at mid-span due to the service loads and pre stress force.
The flooring of a warehouse is made up of double-tee joints (DT) as shown. The joists are simply supported on a span of 7.5 m and are pre tensioned with one tendon in each stem with an initial force of 745 kN each, located at 75 mm above the bottom fiber, loss of stress at service load is 18%. a=2.4 m 88 NA. 192 |267 75 mm Load imposed on the joists are: (See loadings) 10 kN/m A B 7.5 m
Transcribed Image Text:The flooring of a warehouse is made up of double-tee joints (DT) as shown. The joists are simply supported on a span of 7.5 m and are pre tensioned with one tendon in each stem with an initial force of 745 kN each, located at 75 mm above the bottom fiber, loss of stress at service load is 18%. a=2.4 m 88 NA. 192 |267 75 mm Load imposed on the joists are: (See loadings) 10 kN/m A B 7.5 m
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