This presentation has introduced statically indeterminate structures and also it has identified the difference between an indeterminate and determinate structure, it has also been able to. Structures as classified into either being statically determinate or statically indeterminate. The book covers the following chapters chapter one includes a brief history of statically determinate structures, the principles of statics, reactions, types of supports, the equation of. Statics basically means the sum of forces in any direction is zero. Statically determinate structures are structures that can be analyzed using statics alone. Force method for analysis of indeterminate structures. The space truss is statically determinate externally equilibrium of each joint can be specified by three scalar force equations 3j equations for a truss with j number of joints.
Classify each of the frames shown in figure below as statically determinate or statically indeterminate. Bending deflection statically indeterminate beams ae1108ii. The frames are subjected to external loadings that are assumed to be known and can act anywhere on the frames. The structure is classified as statically unstable, determinate or indeterminate depending on whether dosi is. Table 1 shows the conditions of static stability and determinacy of 2d and 3d trusses and frames. Simple explanation of structured determinate and indeterminate structural with examples. All structures are planar and movements in the outofplane direction are prevented. Influence lines for indeterminate structures for statically determinate structures, influence lines are straight. Draw the influence lines for the shear force and bending moment at point c for the following beam. Find the maximum bending moment at c due to a 400 lb load moving across the beam. If statically indeterminate, specify the degree of statical indeterminacy. If statically indeterminate, report the number of degrees of indeterminacy. How to analyse structure using 3 equation of equilibrium. A statically determinate structure is the one in which reactions and internal forces can be determined solely from freebody diagrams and equations of equilibrium.