Draw the influence lines for bar forces in members HD and HC of the truss shown in Figure P12.33….

Draw the influence lines for bar forces in members 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 maximum tension and compression forces in bar HD.

 

 

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