Do subscribe to Ekeeda Channel and press bell icon to get updates of structural analysis 2 today we are seeing basic fundamentals of structural analysis in that we are seeing degree of indeterminacy static and kinematic concepts and introduction Hello friends let’s start with another subject this name as structural analysis 2 in that first we are seeing a basic fundamentals of structural analysis in that today we are seeing a degree of static and kinematic indeterminacy introduction and their concept so let’s see in details now see this is a this one is themed as basic fundamentals of structural analysis in that today we are seeing a degree of static and kinematic indeterminacy introductions and concepts now first of all we see that degree of indeterminacy why we are finding the degree of indeterminacy because we have to know whether the structure is stable or unstable we are finding the degree of indeterminacy to find whether the structure is stable or structure is unstable now after that let’s move on to further the further will be types of indeterminacy there are two types of indeterminacy the first one will be degree of static indeterminacy this name as TS and degree of kinematic indeterminacy is named as DK okay after that that move on to furthers now see what is degree of static indeterminacy in degree of static indeterminacy we will see a two types – sorry – parts internal static indeterminacy means it is a degree of internal static indeterminacy is nothing but d s e+ its external static indeterminacy TS i okay this both are addition of these two will get degree of static indeterminacy now second one will be degree of kinematic indeterminacy now let’s see what is kinetic indeterminacy it is defined as the number of nonzero it is defined as the number of nonzero joints displacement of the structure this point is very important displacement of this structure on every joints we will see in kinematics it also called as degree of freedom is also called as nothing but degree of freedom after that I have made one formulas to get better understands degree of indeterminacy important formulates you will follow this formulas to find es and D K this is nothing but degree of static indeterminacy decays that a degree of kinematic indeterminacy now we will deal with three types of problem in this chapter the first one will be beam and the third second one will be frame and the third one will be truss in static within static determinacy we will see UDS e and d s IE d s he is nothing but this is external and D si is nothing but internal and kinematic whippet deals with dk okay now in da c in beam we have a formula of da c is nothing but r minus 3 minus 3 this 3 is nothing but this it is a condition of equilibrium it is nothing but it is a condition of equilibrium means summation F X is equal to 0 summation FY equal to 0 and moment equal to 0 and this is nothing but number of unknowns okay now in frames formula will be of D s will be same R minus 3 interest formula will be same R minus 3 in DSC now in D si the beam D si will be 0 in frame D si will be 3 into CC is nothing but closed loop interest formula will be M minus 2 J minus 3 now in kinematics we will deals with 3 J minus R this is also 3 J minus R this is 2 J minus R we will not follow this two because we have in question we have given the neglect the external deformation and this formula is very important to us we have to use only this three formulas and this one we cannot use this two formulas ok we will solve directly decay in the problem only I will explain you how will you solve the D K means D s is nothing but d s c plus D si and decay we can solve directly in the problems now let’s see degree of kinematic indeterminacy D K in fixed there is no the in fixed there is no decay okay means degree of kinematic indeterminacy will win 0 now in hinge support it is 1 because it is 1 rotation which duties in hinge it is 1 rotation that is decay will be fun in roller if we are using with actual deformation DK will be – without external deformation DK will be neglecting external diffusion DK will be one enroller also obviously can use the one okay means in hinge also one in roller also we get one now see where internal hinge is there see internal hinge internal hinge will be joint two parts remember this pattern this member means our DK will be 2 this is 1 and this is 2 if internal hinge we will at centre means 3 points are the 3 members are there 1 2 & 3 so in that case this is 1 DK this is second DK and this is your third D K now in free end this is your first DK and this is second DK in free end we can use 1 or 2 decays now after that lets see the full forms of all the members now see this R is nothing but number of unknown reactions components are will be smaller will be or this 3 we are written available conditions of equation summation F X equal to 0 summation of y equal to 0 and moment equal to 0 plus additional equation due to internal hinge or Li if we are using internal hinge at that time we can use the additional equation what is that additional equation we can see in the problems of link if any M will be number of member j will be number of joints and c will be number of closed loops to better index can we can see with the problem I hope you understands my video don’t forget to subscribe de carousel and share with your friends thank you