Question

Classify each of the figures shown below as statically determinate or statically indeterminate, stable or unstable. If statically indeterminate, report the number of degrees of indeterminacy. Joint Joint Joint Beta Joint 177777 TITUT 777

Answer 1

Sol": CO Toint B C in abone figure, A and B are fixed support and as a internal linge at A and B there are & support reaction at each support SO degree of static indeferminacy. (P) = No of support Reaction equations og equilibrium 2 S-r No of support reaction 3+3 - 6 {A} {B (S) = 6 equation of equilibrium [ {f=0 <fy.. EM sol and Me - 4

() = (6-4) 22 So the above figure as Hatically indefermenate and table 2 degree of Joint Point B TD A in the * figure, Als roller support D is a fixed support so the total support reaction is 1 + 3 - 4 * B and c are internal hinge co total tofal equation of eque equilibran are

♡ {fuso Efyzo, EM 20 EMB=0 {Mcco - 5 NOW: degree of indeterminary. (ه-ی) - 4-5 - – 1. since So degree of indeterminacy is regatives the figure as defierent to one degree and is not stable ell Ps =-q anstable COND B

So the structure is efaltically determinate but unstable