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posted by  randeep on 7/17/2008 5:27:23 AM  |  status: Live  

Need the answer fast please, Will give "LIFESAVER",

Course Textbook Chapter Problem
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Question Details:
Joint A is supported by rollers and joint L is supported by a pin. find the zero force members.
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posted by rooya on 7/17/2008 11:47:40 AM  |  status: Live
Asker's Rating: None Provided    Moderator's Rating: Lifesaver
Response Details:
 
at joint c BC is a zero force member
REASON: SINCE AT JOINT C SINCE FORCES AT AC AND CE ARE EQUAL AND OPPOSITE  AND IF THE FORCES AT JOINT C IS TO BE IN EQUILIBRIUM CONDITION THEN FORCE CB MUST BE A ZERO FORCE MEMBER
 
SAME REASON APPLIES FOR ALL THE JOINTS EXPLAINED BELOW
at joint b BE is a zero force member
at joint E DE is a zero force member
simillarly
at joint k KJ is a zero force member
at joint j IJ is a zero force member
at joint I HI is a zero force member
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