S8 civ100 assignmnt - ASSIGNMENT #8 CIV101- STRUCTURES,...

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Unformatted text preview: ASSIGNMENT #8 CIV101- STRUCTURES, MATERIALS AND DESIGN, SECTION J (9), 2006-2007 DEPT. OF CIVIL ENGINEERING, UNIVERSITY OF TORONTO Rules : Draw a FBD for each problem; Use 5 Significant digits (two decimal points for angles); Always Express vectors in i, j, k terms. Assignment should be handed in at the end of tutorial. Assignments handed in no later than 4 pm next day will be marked at 75%. Assignments handed in later than that will receive a 0. Civ101 Assignments Question 1 Determine all forces acting on member ABC of the frame (note: member CDE is horizontal) First consider the external equilibrium of the body before splitting it up: MA=0 Ecos30(0.6) + Esin30(0.7608)-240(0.4608)-120(0.5608)=0 E = 197.65N Fx=0 -Ecos30 + Ax=0 Ax = 171.17N Fy=0 Esin30 + Ay 240 - 120=0 Ay = 261.18N 240N 120N Ay Ax E 0.1608m ASSIGNMENT #8 CIV101- STRUCTURES, MATERIALS AND DESIGN, SECTION J (9), 2006-2007 DEPT. OF CIVIL ENGINEERING, UNIVERSITY OF TORONTO Rules : Draw a FBD for each problem; Use 5 Significant digits (two decimal points for angles); Always Express vectors in i, j, k terms. Assignment should be handed in at the end of tutorial. Assignments handed in no later than 4 pm next day will be marked at 75%. Assignments handed in later than that will receive a 0. Civ101 Assignments It is known that BD is a 2-force member, hence the FBD is as shown. Consider body CE: MC=0 Esin30(0.6)-240(0.3)-120(0.4) + BDsin38.26(0.3)=0 BD = 326.78N Fx=0 -Ecos30 + BDcos38.26 + Cx=0 Cx = -85.42N Fy=0 Cy=58.82 kN Ay Ax E BD BD BD Cy Cy Cx Cx 240N 120N 38.26 ASSIGNMENT #8 CIV101- STRUCTURES, MATERIALS AND DESIGN, SECTION J (9), 2006-2007 DEPT. OF CIVIL ENGINEERING, UNIVERSITY OF TORONTO Rules : Draw a FBD for each problem; Use 5 Significant digits (two decimal points for angles); Always Express vectors in...
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This note was uploaded on 11/27/2011 for the course ENGINEEIRI 100 taught by Professor Jz during the Fall '11 term at University of Toronto- Toronto.

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S8 civ100 assignmnt - ASSIGNMENT #8 CIV101- STRUCTURES,...

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