The frame shown in Figure 3 is subjected to tow lateral forces. Use the Portal Method, determine approximately the internal axial, shear and moments of all members and hence calculate the reactions at A and B. Assume the supports at A and B are fixed. Show details of your work including Free Body Diagrams (FBD). Hence find reactions at supports A and B. Indicate their directions. 60 kN 6 m 30 kN 6 m 10 m

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Frames

The trusses and frames are the two most important structural members of civil engineering. Trusses are the interconnection of links and other structural members. The interconnection with other members makes the system behave as a single member that supports and transfers loads. Trusses are generally two types, plane truss, and space truss. Frames on the other hand form the skeleton of any building construction. Frames are structures formed by the connection of beams, columns, slabs, and joists. These members provide the building with the required structural support.