SteelL = 4 mA = 500 mm²E = 200 GPaAluminumL = 3 mA = 300 mm²E = 70 GPaCAВ– 3.5 m2.5 mPFIG. P2.20 2.20 The rigid bar AB, attached to aluminum and steel rods, is horizontal beforethe load P is applied. Find the vertical displacement of point C caused by the loadP = 50 kN. Neglect all weights.

Calculate vertical reactions at point A and B: ∑MA=00=P×3.5-RB×6RB=3.5×506=29.167…

Answered: Steel L = 4 m A = 500 mm² E = 200 GPa…

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Civil Engineering

Steel L = 4 m A = 500 mm² E = 200 GPa Aluminum L= 3 m A = 300 mm² E = 70 GPa C A В 3.5 m 2.5 m- FIG. P2.20

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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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.

Question

Steel
L = 4 m
A = 500 mm²
E = 200 GPa
Aluminum
L = 3 m
A = 300 mm²
E = 70 GPa
C
A
В
– 3.5 m
2.5 m
P
FIG. P2.20

2.20 The rigid bar AB, attached to aluminum and steel rods, is horizontal before
the load P is applied. Find the vertical displacement of point C caused by the load
P = 50 kN. Neglect all weights.

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