CE6501 Structural Analysis I, Third year, Department of Civil Engineering, First and second Units Questions

CE6501 Structural Analysis I, Third year, Department of Civil Engineering, First and second Units Questions

Answer ALL Questions

PART A – (10 x 2 = 20 Marks)

1.      Write down the catiglano’s first theorm?

2.      Difference between determinate and indeterminate structures?

3.      Define lack of fit?

4.      Write the equation used to find out the deflection of any joint of te truss using the principle of virtual work?

5.      What is meant by  virtual moment?

6.      What is influence line diagram?

7.      Sketch the shapes of the influence line for the support reaction and the hogging moment  at the continuous support B of a two span continuous beam ABC .Assume the extreme ends A and C to be fully fixed ?

8.      What is the uses of Beggsdeformeter?

9.      What is the uses of influence line diagram ?

10.  Find the maximum  bending moment at a section 30m from  the left end of the three hinged  stiffening girder of span 100m where UDL of 10KN/m ,5m length crosses the girder ?

PART B (5x15=80 Marks)

1.      A two span continuous stress is load as shown in fig. All the members are of same material are of same cross sectional area .Find the reaction at the central support?

F                                                  G                    H                                    I                   J

 

A                                      40 KN  B                                C         D         40 KN                       E

		3m						3mmm
				3m		3m

 

2.Find the forces in all members of the pinjointed frame shown in fig. All the mmbers  have the same cross sectional area and the young’s modulus?

                                                      A     B          C                 D

                                                      33

                        5M

A               30⁰                                                                               75KN

B               45⁰

^C                90⁰

^D                45⁰

50KN

3.The frame shown in fig. is supported by a rigid wall at D and E ,All the members have the same cross sectional area are 1600mm² If there is rise of temperature of members BC=32⁰c .Determine the resulting force n the member  coefficient of temperature  /⁰c and E=2.08×10⁵N/mm²?

                                                                        B                                               D

 

                                                                                                                                    3M

                                                            A              C                                         E

     4. A train of the wheel loads crosses a simply supported beam of span 22.5 m using influence line diagram .Calculate the maximum positive and absolute maximum bending moments any where in this span?

5. Draw the ILD for shear force and bending moment for a section  at 5m from the left  hand support of a simply supported beam20 m long .Hence calculate the maximum bending moment and shear force at the section due to  an uniformly distributed rolling load of length 3m and indensity 10KN/m run.