The square bar shown (Figure 1) is 2.1 in. thick and 14 ft long
and is fixed supported at both ends. A load directed leftward is
applied at point C , as shown, L2 = 9 ft from the left end . The
modulus of elasticity is E = 1.5×104 ksi .If point C moves δ =
2×10−3 in. to the left, what is the applied force?
B.
Consider a new structure, where the thickness of the bar is
reduced
to 1.05 in.in. from CC to BB (it
is still square) (Figure 2) and x=9ftx=9ft. If the
applied load is FFF = 110 kipkip , then
what is the reaction at AA? Let a positive reaction act to the
right. The total length is still 14 ftft .
C.
Consider the structure from Part B (Figure 2). What value
of xx will lead to equal reaction forces
at AA and BB?
- A The Square Bar Shown Figure 1 Is 2 1 In Thick And 14 Ft Long And Is Fixed Supported At Both Ends A Load Directed 1 (5.48 KiB) Viewed 25 times
- A The Square Bar Shown Figure 1 Is 2 1 In Thick And 14 Ft Long And Is Fixed Supported At Both Ends A Load Directed 2 (5.39 KiB) Viewed 25 times
А с с В Ft х