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bil-3-jun-labsheet-cc205-3 - Laboratory Sheet CC205...

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Shear and bending moment CC205 Mechanics of Structure Deflection and slope test Tensile test Laboratory Sheet Provided by: Norbaini bt Mohamed
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CIVIL ENGINEERING DEPARTMENT POLYTECHNIC OF SULTAN AZLAN SHAH STRUCTURE LABORATORY CC 205 TITLE SHEAR FORCE AND BENDING MOMENT IN THE BEAM EXPERIMENT 1A Shear Force and Bending Moment Variation with an increasing Point Load EXPERIMENT 1B Shear Force and Bending Moment Variation for Various Loading Conditions DATE OF PRACTICAL DUE DATE LECTURER NAME NAME OF GROUP MEMBERS NUM NAME REG. NO 1 2 3 4 5 6 7 8 9 10 LECTURER’S COMMENT NUM MARKING CRITERIAL GIVEN MARK 1 Practical Work Title (5%) 2 Objective (5%) 3 Theory (5%) 4 Apparatus / Equipment (5%) 5 Procedures (5%) 6 Data (5%) 7 Analysis / Discussion (5%) 8 Comments / Conclusion (5%) 9 Tidy (5%) 10 Reference (5%) Report (50%) 1 Attend for practical (25%) 2 Leadership / cooperation (25%) Practical (50%) TOTAL MARK (100 %)
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RA L RB TITLE : SHEAR FORCE AND BENDING MOMENT IN THE BEAM EXPERIMENT 1A: Shear Force and Bending Moment Variation with an increasing Point Load OBJECTIVE : This experiment examines how shear force and bending moment varies with an increasing point load THEORY : We know that if a body or object of any sort is stationary, then the forces on it balance, as follows: (1) Vertical equilibrium (total force up = total force down) (2) Horizontal equilibrium (total force right = total force left) (3) Moment equilibrium (total clockwise moment = total anticlockwise moment). We will use the statement: “The Shear force at the ‘cut’ is equal to the algebraic sum of th e forces acting to the left or right of the cut”. “The Bending Moment at the ‘cut’ is equal to the algebraic sum of the moments caused by the forces acting to the left or right of the cut”. APPARATUS : a) Computer set b) Frame structure c) Digital Force display PROCEDURE: (i) Check the Digital Force Display meter reads zero with no load. (ii) Place a hanger with a 100 g mass to the left of the ‘cut’ (40 mm away). w cut a 40mm Figure 1a : Force diagram (iii) Record the Digital Force Display reading in a table as in Table 1a. (iv) Repeat using masses of 200 g, 300 g, 400 g and 500 g.
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RESULT: Mass (g) Load (N) Experimental shear force (N) Theoretical shear force (N) Experimental bending moment (N) Theoretical bending moment (N) 0 0.98 100 1.96 200 2.94 300 3.92 400 4.90 500 0.98 Table 1b : Results for Experiment DISCUSSION: (i) Determine values and directions of vertical reaction, horizontal reaction and moment (ii) Calculate shear force and bending moment in a beam (iii) Plot graph which compares your experimental results to those you calculated using theory a) Load v shear force graph b) Load v bending moment graph CONCLUSION: Comment on the shape of the graph. What does it tell us about how shear force varies due to an increased load? Does the equation we used accurately predict the behavior of the beam?
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RA RB EXPERIMENT 1B : Shear Force and Bending Moment Variation for Various Loading Conditions OBJECTIVES : This experiment examines how shear force varies at the cut position of the beam for various loading conditions.
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