Answered: Use the virtual work method to…

Use the virtual work method to determine the deformation at joint B of the truss shown. 3 m A -2 m- 100 KN B 50 kN -4 m- EA=constant E = 70 GPa A = 1,000 mm² C

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

Properties of materials

A property of a material describes its characteristics and distinguishes it from the others. The material properties are described it in terms of its hardness, color, appearances, and so on. The material properties generally depend on the type of material, or whether it is a metal or an alloy. There are different kinds of material properties such as mechanical properties, thermal properties, physical properties, and chemical properties. Chemical properties describe the material in terms of a chemical change. The mechanical properties come into existence when the material is acted upon by an external load. Thermal properties are associated with the temperature of the material and specific heat.

Question

Use the virtual work
method to determine the deformation
at joint B of the truss shown.
3 m
A
-2 m
100 KN
B
50 kN
-4 m-
EA constant
E = 70 GPa
A =
= 1,000 mm²
C

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Step 1: Actual member forces

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Step 2: calculate Vertical Deflection by virtual method

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Step 3: calculate Horizontal Deflection by virtual method

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