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Unformatted text preview: 12-100Introduction to Civil and Environmental Engineering Spring 2008 Homework 2. Due: 30 January 2008 Please use clean, whole sheets of engineering paper, and work to three significant figures. Use the grade sheet as the top sheet of your homework set, and staple the set together before turning it in. Free-body diagrams must accompany every calculation of equilibrium!1.Frame ABCDE is supported by a pinned connection (a hinge) at A, and is in frictionless contact with a vertical wall at E. It carries two applied loads, at B and D, as shown. Determine the reactions acting on this structure at A and E. 2.Beam ABCDE carries three loads, as shown. Find the reactions acting on this beam at A and D. 3.Beam ABCD carries two loads, as shown. Find the reactions acting on this beam at A and D. 4.The L-shaped frame ABCD is supported by a pinned connection at A and by cable DE. Determine the tension in that cable, and the reactions at A, (i)(ii)5.Case (i) shows a ladder, ABC, supported by a hinged foot at A and in frictionless contact with a...
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- Spring '08
- Environmental Engineering