Answered: Find the value q can take so that the…

Find the value q can take so that the BD bar, the cross section of which is shown in the figure, can carry the given load without buckling. factor of safety n = 3 Ri= 7cm , Rd=9cm on BD bar

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

Find the value q can take so that the BD bar, the cross section of which is shown in the figure, can carry the given load without buckling.

factor of safety n = 3

Ri= 7cm , Rd=9cm on BD bar

b)
c)
d)
11
1-1 kesiti
q
B
y
L= 5.5m
2.75m
39.70kN/m <q < 44kN/m
q> 44.5kN/m
31kN/m <q < 34.5kN/m
q< 30.5kN/m
35.2kN/m <q < 39kN/m
qL
C
M
6.6m
Şekilde kesiti belirtilmiş olan BD çubuğunun
verilen yüklemeyi burkulmadan taşıyabilmesi
için q
nun alabileceği değeri bulunuz.
Emniyet katsayısı n = 3, p≤ 120 için
Okr = 24000-2²/1.5[N/cm²], elastisite
modülü E = 210 GPa dır. BD çubuğunda
R₁ = 7cm, Ra = 9cm dir.

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Step 2: Calculate buckling load for bar BD

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Step 3: Draw FBD and calculate value of q

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