A composite beam made of steel and bronze has the cross section shown. The cross-sectional dimensions are b, - 0.9 in, b2 - 2.7 in.,and d- 1.8 in. The elastic modulus of the steel is E, - 30,000 ksi, and its allowable bending stress is 17 ksi. The elastic modulus of thebronze is E2 - 15,000 ksi, and its allowable bending stress is 14 ksi. Calculate the allowable bending moment that can be applied aboutthe z centroidal axis.Bronze (2)dSteel(1)b2Part 1Your answer has been saved. See score details after the due date.Determine the modular ratio in order to transform the steel into an equivalent amount of bronze.Answer:n-Attempts: 1 of 1 usedPart 2Determine the area moment of inertia of the transformed section about the z-axis.Answer:in.4

To find modular ratio and moment of inertia

Id = 1.8 in. The elastic modulus of the steel is E1 – 30,000 ksi, and its allowable bending stress is 17 ksi. The elastic modulus nze is E2 - 15,000 ksi, and its allowable bending stress is 14 ksi. Calculate the allowable bending moment that can be applie z centroidal axis. Bronze (2) d Steel (1) b2 rt 1 Your answer has been saved. See score details after the due date. Determine the modular ratio in order to transform the steel into an equivalent amount of bronze. nswer: 2 Attempts: 1 of rt 2

Id = 1.8 in. The elastic modulus of the steel is E1 – 30,000 ksi, and its allowable bending stress is 17 ksi. The elastic modulus nze is E2 - 15,000 ksi, and its allowable bending stress is 14 ksi. Calculate the allowable bending moment that can be applie z centroidal axis. Bronze (2) d Steel (1) b2 rt 1 Your answer has been saved. See score details after the due date. Determine the modular ratio in order to transform the steel into an equivalent amount of bronze. nswer: 2 Attempts: 1 of rt 2

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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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

A composite beam made of steel and bronze has the cross section shown. The cross-sectional dimensions are b, - 0.9 in, b2 - 2.7 in.,
and d- 1.8 in. The elastic modulus of the steel is E, - 30,000 ksi, and its allowable bending stress is 17 ksi. The elastic modulus of the
bronze is E2 - 15,000 ksi, and its allowable bending stress is 14 ksi. Calculate the allowable bending moment that can be applied about
the z centroidal axis.
Bronze (2)
d
Steel
(1)
b2
Part 1
Your answer has been saved. See score details after the due date.
Determine the modular ratio in order to transform the steel into an equivalent amount of bronze.
Answer:
n-
Attempts: 1 of 1 used
Part 2
Determine the area moment of inertia of the transformed section about the z-axis.
Answer:
in.4

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