a) Determine the ultimate strength of the concrete in lb/inb) Determine the allowable compressive stress with a factor of safety of 5.0 against ultimate strength.c) Determine the ultimate permissible load that the concrete can carry using the strength design method. Use a strength reduction factor of 0.60 against ultimate strength. On the 28th day after concrete was mixed, a 6.00-in-diameter concrete cylinder failedin a compressive testing at a load of 145 000 lb.(a) Determine the ultimate strength of the concrete, in lb/in?.(b) Determine the allowable compressive stress with a factor of safety of 5.0 againstultimate strength.(c) Determine the maximum permissible load that the concrete can carry using thestrength design method. Use a strength reduction factor of 0.60 against ultimatestrength.

Given data, Diameter of cylinder d = 6 in Compressive load P = 145000 lb Factor of safety γ0 = 5

Answered: On the 28th day after concrete was…

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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a) Determine the ultimate strength of the concrete in lb/in b) Determine the allowable compressive stress with a factor of safety of 5.0 against ultimate strength. c) Determine the ultimate permissible load that the concrete can carry using the strength design method. Use a strength reduction factor of 0.60 against ultimate strength.

On the 28th day after concrete was mixed, a 6.00-in-diameter concrete cylinder failed
in a compressive testing at a load of 145 000 lb.
(a) Determine the ultimate strength of the concrete, in lb/in?.
(b) Determine the allowable compressive stress with a factor of safety of 5.0 against
ultimate strength.
(c) Determine the maximum permissible load that the concrete can carry using the
strength design method. Use a strength reduction factor of 0.60 against ultimate
strength.

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