Answered: e moduli and the ultimate stresses on…

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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Using Figure 7.34, d. Plot the relationship between the moduli and the ultimate stresses on the same graph of part (c), using the relation of the ACI Building Code (Equation 7.3). e. Compare the two relations in questions c and d and comment on any discrepancies f. Determine the toughness at each water-cement ratio and comment on the effect of increasing water-cement ratio on the toughness of concrete.

8
Water-cement ratio = 0.33
50
0.40
40
0.50
30
20
0.67
2
10
1.00
1000
2000
3000
4000
5000
Strain, 10-6
FIGURE 7.34 Typical stress-strain relationships for
compressive tests on 0.15 × 0.30-m concrete cylinders at
an age of 28 days.
Stress, MPa
4.
CO
Stress, ksi

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