Transcription of Force Method for Analysis of Indeterminate Structures
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Force Method for Analysis of Indeterminate Structures
Force Method for Analysis of Indeterminate StructuresNumber of unknown Reactions or Internal forces > Number of equilibrium equationsNote: Most Structures in the real world are statically deflections for similar members Redundancy in load carrying capacity (redistribution) Increased stability AdvantagesDisadvantagesMore material => More Cost Complex connections Initial / Residual / Settlement Stresses Methods of Analysis (i) Equilibriumof forces and moments(ii) Compatibilityof deformation among members and at supports(iii) Materialbehavior relating stresses with strains(iv) Strain-displacement relations(v) Boundary ConditionsStructural Analysis requires that the equations governing the following physical relationships be satisfied:Primarily two types of methods of Analysis :(Ref: Chapter 10)Displacement (Stiffness) MethodExpress local (member) Force -displacement relationships in terms of unknown member displacements.
Structural Analysis requires that the equations governing the following physical relationships be satisfied: Primarily two types of methods of analysis: (Ref: Chapter 10) ... For statically indeterminate structures, influence lines are usually curved. The Müller -Breslau principle also holds for indeterminate structures.
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