Problem 411
Determine the force in members AB, AC, BD, CD, and CE of the cantilever truss shown in Fig. P-411. If the loads were applied at C and E instead of at B, specify which members would have their internal force changed.
Problem 410
Determine the force in each member of the Pratt roof truss shown in Fig. P-410.
Problem 409
Determine the force in members AB, BD, BE, and DE of the Howe roof truss shown in Fig. P-409.
Problem 408
Compute the force in each member of the Warren truss shown in Fig. P-408.
The following models of CASIO calculator may work with this method: fx-570ES, fx-570ES Plus, fx-115ES, fx-115ES Plus, fx-991ES, and fx-991ES Plus.
The following calculator keys will be used for the solution
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This is one of the series of post in calculator techniques in solving problems. You maybe interested also on my previous post in calculator technique for progression problems and calculator technique for clock problems; both in Algebra.
Problem 407
In the cantilever truss shown in Fig. P-407, compute the force in members AB, BE, and DE.
Problem 406
The cantilever truss in Fig. P-406 is hinged at D and E. Find the force in each member.
Problem 405
Determine the force in each bar of the truss shown in Fig. P-405 caused by lifting the 120 kN load at a constant velocity of 8 m per sec. What change in these forces, if any, results from placing the roller support at D and the hinge support at A?
Problem 404
Determine the forces in the members of the roof truss shown in Fig. P-404.
The following models of CASIO calculator may work with these methods: fx-570ES, fx-570ES Plus, fx-115ES, fx-115ES Plus, fx-991ES, and fx-991ES Plus.
Before we go to Calculator technique, let us first understand the movements of the hands of our continuously driven clock.
For simplicity, let "dial" be the unit of one hand movement and there are 60 dials in the complete circle as shown in the figure.
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