No. of Pages:2

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

THIRD SEMESTER M.TECH DEGREE EXAMINATION, DECEMBER 2017
Branch: Civil Engineering

Stream: Structural Engineering

01 CE 7117 Stability of Structures

Answer any two full questions from each part

Limit answers to the required points.

Max. Marks: 60 Duration: 3 hours
PARTA
1. a. Write the second order differential equation for buckling and solve for 9
⋅⋅ ∙ ∙ ⋅ ⋅∙ Marks
the exact characteristic equation which defines the critical load. No need
to
find the critical load (M=3EIO/L)
L
ஷ்‌ > ۲
ह ‏بت ووپچچ۰ی۰صصصججحصجمسیے‎ ^
| ஜி னெ
| |
[|
A —
2. 3. Explain the buckling phenomenon of columns. What is column design 6
curve?. What are its advantages? Marks
b. Explain the behaviour of initially bent columns 3
Marks
3. ` Explain the Double Modulus and Tangent modulus theory for inelastic 9 Marks
buckling of columns
PART B
∙ ⋅⋅ ⋅ ∙ ⋅ ∙⋅ 9 Marks
a, Obtain critical load for a hinged hinged column using matrix stiffness

method