june 2014 (ahmed fathy abdel-azeem)
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7/23/2019 JUNE 2014 (Ahmed Fathy Abdel-Azeem)
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AIN SHAMS UNIVERSITY
PH.D.
AND
M.SC.
FACULTY OF ENG. EXAM
STRUCT.
ENG. D E P T ~ JuNEib14
SUSPENSION AND GUYED STRUCTURES CES 614
The Exam Consists
of
TWO
Problems
n
Two
Pages
PROBLEM
NO 1
I a. What are the different types of suspension bridges? Sho , by sketches the different structural
systems
for
suspension bridges. Explain with examples the different theorems
for
the static
analysis
of
suspension bridges .
1-b. What
are
the effectS ofWlnd
o
suspension and cable stayed bridges. What causes instabilities of
suspension bridges?
Write downthe
differential equation, solve, and explain the cause of failure
ofthe Tacoma Bridge
1-c. Explain wi th examples ahdfIow charts the. energy as well as the stiffness methods for
formulating the nonlinear equations for prestressed cable net roof structures. Explain by
sketches the Newton Raphson and the Conjugate Gradient methods for
solving nonlinear
equations.
PROBLEM NO 2
. . .
2 a. Formulate and write down the solution steps for the analysis
of
the cable supported and
suspension structures suggested
by Dr.
Saa1 an.
2-b. Write down the assumptions, solution steps and also give a complete
flow
chart explaining Dr.
Hegab's Energy Method for the structural. analysis of the four cable supported and suspension
structures shown below. What modifications ~ d e by Aboul-Ella in this respect.
1 .
h
Cable Supported Roof
of
AHMED FATHY ABDEL-AZEEM SAAD NEAMT-ALLAH
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2
AIN SHAMS UNIVERSITY
PH.D. AND M.SC.
FACULTY
OF
ENG.
EXAM
STRUCT. ENG.
DEPT
JUN
2014
SUSPENSION
AND GUYED STRUCTURES CES 614
3
4
h
Suspension Bridge
h
Cable Stayed Bridge
Harp
- Shaped
f
_L1 - - --- -- - - -- -
-------
_L
-----
.
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-1 -
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t
h
Cable Stayed Bridge
Fan
- Shaped
-
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