9. Using the Method of Sections, determine the force in member BC, to the nearest 1 Ibs. (Hint: Find the vertical reaction at a support, then cut the vertical section through BC, and with the FBD of the truss portion to the side where the reaction is known, apply the equations of equilibrium as needed to determine member force BC. Note: Members EB and GC are perpendicular to the top chord, and the center triangle BFC is an equilateral triangle). 48# 48# 48# 48# 48# G 30° А B! D 12! 12! 12'

9. Using the Method of Sections, determine the force in member BC, to the nearest 1 Ibs. (Hint: Find the vertical reaction at a support, then cut the vertical section through BC, and with the FBD of the truss portion to the side where the reaction is known, apply the equations of equilibrium as needed to determine member force BC. Note: Members EB and GC are perpendicular to the top chord, and the center triangle BFC is an equilateral triangle). 48# 48# 48# 48# 48# G 30° А B! D 12! 12! 12'

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

Loads and Reactive Forces

Loads are the external influences that a beam experiences under its working conditions. For instance, a beam may be subjected to shear loads, twisting loads, bending moment, and axial loads during its working conditions. Engineers primarily deal with beams and trusses in the civil engineering domain. Due to the influence of loads, it is very crucial to determine the induced stresses and deformation values. These values give an insight into the critical area of the beam that needs to be worked upon to make it fail-safe.

Question

9. Using the Method of Sections, determine the force in member BC, to the nearest 1 Ibs.
(Hint: Find the vertical reaction at a support, then cut the vertical section through BC, and
with the FBD of the truss portion to the side where the reaction is known, apply the
equations of equilibrium as needed to determine member force BC. Note: Members EB
and GC are perpendicular to the top chord, and the center triangle BFC is an equilateral
triangle).
48#
48#
F
48#
48#
48#
E
G.
30°
A
В
C.
D
12'
12'
12'

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