tailieunhanh - Engineering Mechanics Statics - Examples Part 8

Tham khảo tài liệu 'engineering mechanics statics - examples part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Engineering Mechanics - Statics Chapter 6 Problem 6-35 Determine the force in members EI and JI of the truss which serves to support the deck of a bridge. State if these members are in tension or compression. Units Used kip 103 lb Given F1 4000 lb F2 8000 lb F3 5000 lb a 9 ft b 12 ft Solution Initial Guesses Gy 1 kip Fei 1 kip Fji 1 kip Given -Fj a - F22a - F35a Gy6a 0 Gy2a - F a - Fjib 0 FEI - F3 Gy 0 G Gy FJI I fei Find Gy FJI FeI G Gy FJI kip I fei Positive T Negative C Problem 6-36 Determine the force in members BE EF and CB and state if the members are in tension or compression. Units Used kN 103 N 492 2007 R. C. Hibbeler. Published by Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the publisher. Engineering Mechanics - Statics Chapter 6 Given F1 5 kN F4 10 kN F2 10 kN a 4 m F3 5 kN b 4 m ca 1 Solution 0 atan I b Inital Guesses Fcb 1 kN Fbe 1 kN Fef 1 Given F1 F2 - Fbe cos 0 0 -FCB - FeF - FbE sin 0 - F3 0 kN -F1 a Fcb b 0 c FCB1 fbe fef Find fcb fbe fef c FCB1 fbe fef c 5 1 212 kN 1-25 J Positive T Negative C Problem 6-37 Determine the force in members BF BG and AB and state if the members are in tension or compression. Units Used kN 103 N Given F1 5 kN F4 10 kN 493 2007 R. C. Hibbeler. Published by Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the .

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