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Posted: February 23rd, 2022
CIVIL ENGINEER STATICS HW
ENGINEERING MECHANICS STATICS CE214
FALL 2020 – EXTRA CREDIT- Submit to D2L Dropbox – Due on 12/3/20 at 11:59pm.
The floor of a bridge will rest on stringer that will be simply supported by transverse floor
beams, as in Fig. a. The ends of the beams will be connected to the upper joints of two
trusses, one of which is shown in Fig. b. As part of the design of the bridge, it is desired to
simulate the effect on this truss of driving a 3-kip truck over the bridge. Knowing that the
distance between the truck’s axles is b = 7.5 ft and assuming that the weight of the truck is
equally distributed over its four wheels, use computational software to calculate and plot the
forces created by the truck in members BH and GH as a function of x for 0 x 57.5 ft.
From the results obtained,
determine:
(a)The maximum tensile force
in BH,
(b)The maximum compressive
force in BH,
(c)The maximum tensile force
in GH.
Indicate in each case the
corresponding value of x.
Fig. a
Fig. b
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