The Figure shown below is the truss pattern proposed by engineering students for the one part of modern houses. Reaction forces for both pin A and roller F have already been calculated. 12 ft G 6 ft A, = 0 45 4.50 F B 6 It 6 ft 6 t 6 ft- - 6 ft A, = 3 k 3 k 3 k F, = 3 k a) By using appropriate methods calculate all determinable forces in the members and define whether the members are in tension or compression. b) Is there any zero-force member? If no add 2 to get more stable design. c) As we know, the bridges of long structure tend to elongate under the impact of thermal stress. Which design should be preferred for this case, and why?

The Figure shown below is the truss pattern proposed by engineering students for the one part of modern houses. Reaction forces for both pin A and roller F have already been calculated. 12 ft G 6 ft A, = 0 45 4.50 F B 6 It 6 ft 6 t 6 ft- - 6 ft A, = 3 k 3 k 3 k F, = 3 k a) By using appropriate methods calculate all determinable forces in the members and define whether the members are in tension or compression. b) Is there any zero-force member? If no add 2 to get more stable design. c) As we know, the bridges of long structure tend to elongate under the impact of thermal stress. Which design should be preferred for this case, and why?

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.125P: The figure shows a three-pin arch. Determine the horizontal component of the pin reaction at A...

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