20 B D E -6 @ 20'= 120- P12.33
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Draw the influence lines for bar forces in mem-
bers HD and HC of the truss shown in Figure P12.33.
The load moves along the bottom chord of the truss. If the
truss is to be designed for a uniform live load of 0.32 kip/ft
that can be placed anywhere on the span in addition to a
concentrated live load of 13 kips that can be positioned
where it will produce the largest force, compute the maxi-
mum tension and compression forces in bar HD.
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