![]() ![]() ![]() If the end of the compression member is fixed or hinged, Ψ is taken as 1 or 10 respectively, If the compression member is not connected to any flexural member, Ψ is taken as 1000. where, E: Modulus of elasticity I: Moment of inertia of section L: Span length of flexural member measured from center to center of joints 2. If the joint of the flexural member is fixed or hinged as shown in the figure 2 below, the stiffness, S, is modified as indicated. Calculate stiffness, S (=EI/L), of the members which are connected to the ‘Member A’. The auto-calculated effective length is based on the procedure briefed as follows: Let us consider the ‘Member A’ as shown in Figure 1 1. Check on ‘Auto Calculate Effective Length Factors’ for the program to internally calculate the effective length factor. ![]() A: In midas Gen, effective length factor could either be given manually or the program auto computes based on the frame definition Auto Calculate Effective Length factor: For the program to automatically consider effective length factor, from the main menu select Design > General Design parameter > Definition of frame. ![]()
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