![]() ![]() ![]() Draw bending momentĪnd shear force diagram. A continuous beam ABC is carrying a uniformlyĭistributed load of 1 kN/m in addition to aĬoncentrated load of 10 kN. Determine forces in the truss structure shown below. Determine member forces and reaction at supports To determine redundant, we superimpose deflection due toĮxternal load and a unit value of the redundant multiplied Vertical displacement at B must be zero The released structure is then loaded by redundant I intentionally choose support at B as the redundant Is the structure determinate or indeterminate? The beam structure below, using force method. ![]() Determine the reactions of the continuous beam in Now by solving the two linear equations Therefore our second linear equation becomes This time we make sure vertical displacement at Now we need another equation to solve two Therefore our first linear equation becomes Members have the same cross-sectional area A and Calculate the forces in the members of the truss. The cross-sectional area A and Young’sįA FB FC fA fB fC FAfAL/EA FBfBL/EA FCfCL/EA Determine internal forces in the truss structure Forces are determined first and then strains and Redundant forces and component flexibilities In this method the governing equations expressĬompatibility requirements in terms of the Focuses on the solution for the system internal forces This method is for solving indeterminate structures Ability to solve indeterminate structures Familiarisation with force method (flexibility Flexibility Energy Method in structural analysis ![]()
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