Consider the multi-span beam structure shown below. Support A is a roller, B is an internal hinge
and support C is xed. Using the virtual work method:!
Compute the rotation at A, i.e. A!
Note: Flexural rigidity EI is constant
Structural Analysis I
November 20, 2014
Hour Exam 3
This is a closed-book, closed-notes exam. The exam is worth 100 points. The point value for each
problem is as indicated. Unexplained work and work w/o FBDs will receive great
1) For each of the three structures shown below, answer the following questions.
a) Is the structure stable or unstable? Explain your reasoning briefly.
b) If the structure is stable, is it statically determinate or indeterminate? If it is statically
» Exam N0. 2 CE 371 Name: 5:1me
9 April 2009
l. (15%) Using the moment-area method, determine the deection and rotation at C. E] is
constant. No partial credit will be awarded for incorrect answers.
100 kip-ft Exam N0. 2 CE 371 Name: Sou.)on
9 April 200
1) The beam-structure shown below is made of two segments: PQR and RST. The structure has
roller-supports at P and T, and a pinned-support at S. Note that the segment RST is continuous
over the pinned-support at S. There is an internal hinge at R. A verti
The truss shown below has pinned supports at A and B. Find the support reactions.
The 30-ft long beam shown below is acted upon by a pair of 20 kip-ft clockwise moments at its free ends. The beam has