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Final Exam(April2010) - (page 1/6 CE 470 Final Exam(12...

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CE 470: Final Exam ( 12 April 2010 ) –Structural Steel Design (page 1/6) _________________________________________________________________________________ Department of Civil & Geological Engineering University of Saskatchewan CE470 .3 FINAL EXAMINATION Monday 9:00am, 12 April 2010, Room 232 PAC Building Time Allowed = 3 hours Instructor: M.M. Hrabok Student Name: Number: Notes: How many booklets and other sheets handed in: ______________ • this is a “closed book examination” except the Student is allowed to bring in the CSA-S16- 01 CISC Handbook of Steel Construction (9 th Edition) but not the Class Notes . Calculators are permitted but not any other computational aids or electronic devices which transmit, receive, record or replay, etc. • cross-reference all answer sheets to the questions and hand these in with your exam. answers/calculations are complete only if the numbers are accompanied by units. draw and use sketches freely to explain and support your calculations. use the Tables in the Handbook to your advantage. units are [ mm ] and [ MPa ] unless noted otherwise. the exam consists of 4 questions (not all equal marks) and 6 pages for a total of 100 marks. Question 1 (30 marks) : Cantilevered Beam with a Welded Connection A 4-metre long W310x74 ( W12x50 ) steel cantilever beam is welded to a “rigid support” with an E49xx 8mm fillet weld all-around as shown in Figure 1 . Section properties for the member are given in the Handbook on page 6-52 . The steel grade is “50 ksi” with , F y =345 MPa, F u =450 MPa. Draw a free-body diagram for each of the load cases below, and according to CSA-S16- 01 , assign to each load case the maximum load which you would permit on this member: a) axial load P x ? b) lateral load P y ? c) vertical load P z ? d) torsional moment (torque) M xx ? how is this torque carried along the length of the beam? sketch the shape of the torque-carrying mechanisms and label each one.
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