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An examination paper for the structural engineering 2 module (civl6025) of the beng in civil engineering programme at the cork institute of technology. Instructions for candidates, questions for sections a and b, and figures for reference. The examination covers topics such as second moment of area, moment of resistance, uniformly distributed loads, point loads, maximum shear, maximum flexural shear stress, eccentric loads, and stress calculation.
Typology: Exams
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Semester 2 Examinations 2011/
Module Code: CIVL
School: Building and Civil Engineering
Programme Title: BEng in Civil Engineering – Year 2
Programme Code: CCIVL_7_Y
External Examiner(s): Mr J. Murphy Ms M. Kyne Internal Examiner(s): Mr D. Coleman Mr C. Ó Súilleabháin
Instructions: Answer all four questions Use separate answer books for each section
Duration: 2 hours
Sitting: Summer 2012
Requirements for this examination:
Note to Candidates: Please check the Programme Title and the Module Title to ensure that you have received the correct examination paper. If in doubt please contact an Invigilator.
Q1. A steel I-beam with a steel plate fastened to the top flange as shown in Fig Q1 (a) has the following dimensions: Steel Plate = 250mm x 15mm Top Flange = 200mm x 18mm Web = 10mm x 350mm Bottom Flange = 180mm x 12mm (a) Determine the second moment of area IYY (12 marks) (b) If the beam is positioned to bend about the Y-Y axis and if the maximum safe stress is 275N/mm^2 in compression and in tension determine the moment of resistance of the section. (8 marks) (c) The beam has a uniformly distributed load acting on it and is simply supported as shown in Fig Q1 (b). Verify that the beam passes in bending (5 marks)
Q2. A timber T-beam has the cross sectional details as shown in Fig Q2 (a) Web = 10mm x 250mm Bottom Flange = 200mm x 20mm (a) Determine the second moment of area IYY (7 marks) (b) The simply supported beam has a uniformly distributed load acting on it with a point load 2.0m from the left hand support as shown in Fig Q2 (b). Determine the maximum shear in the beam. (3 marks) (c) Determine the maximum flexural shear stress at the following locations: i. Position 1 Neutral Axis (5 marks) ii. Position 2 Just above the junction of the two pieces of timber (5 marks) iii. Position 3 Just below the junction of the two pieces of timber (5 marks)