a) Figure Q2a shows a truss structure in static equilibrium supported at points A and B, where each truss member AB, AC, BC, BD, CD, DE & CE are all the same length at 1.75 m. Calculate the reaction forces RA and RE when subjected to vertical loads at nodes B, D & C where F₁ = 458 kN acts at joint B, F2 = 636 kN acts at joint D and F3 = 870 KN acts at joint C. respectively. Give your answers in kilonewtons (kN) to 2 decimal places. A 60⁰ F1 B 60° C F3 60⁰ F2 60⁰ E b) For the truss structure under the loading conditions above in Q2a, calculate the forces acting in members AB, AC, BC, BD & CD; and clearly state if the member is in tension or compression. Give your answers in kilonewtons (kN) to 2 decimal places.

a) Figure Q2a shows a truss structure in static equilibrium supported at points A and B, where each truss member AB, AC, BC, BD, CD, DE & CE are all the same length at 1.75 m. Calculate the reaction forces RA and RE when subjected to vertical loads at nodes B, D & C where F₁ = 458 kN acts at joint B, F2 = 636 kN acts at joint D and F3 = 870 KN acts at joint C. respectively. Give your answers in kilonewtons (kN) to 2 decimal places. A 60⁰ F1 B 60° C F3 60⁰ F2 60⁰ E b) For the truss structure under the loading conditions above in Q2a, calculate the forces acting in members AB, AC, BC, BD & CD; and clearly state if the member is in tension or compression. Give your answers in kilonewtons (kN) to 2 decimal places.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Members with compression and bending

Compression members are structural elements that carry compressive axial force. They are the vertical members of a building that support beams and their design, which is governed by buckling and strength. Columns are known as struct or compression members, which are subjected to compressive forces. These members provide stiffness to the building and avoid any imperfection regarding the transfer of axial load. For instance, webs in a truss, braces in a framed structure, tiers, and so on.

Question

a) Figure Q2a shows a truss structure in static equilibrium supported at points A and B,
where each truss member AB, AC, BC, BD, CD, DE & CE are all the same length at
1.75 m. Calculate the reaction forces RA and RE when subjected to vertical loads at
nodes B, D & C where F₁ = 458 kN acts at joint B, F2 = 636 kN acts at joint D and F3 =
870 KN acts at joint C. respectively. Give your answers in kilonewtons (kN) to 2
decimal places.
A
dost
60⁰
F1
B
60°
с
F3
60⁰
F2
D
60°
E
b) For the truss structure under the loading conditions above in Q2a, calculate the forces
acting in members AB, AC, BC, BD & CD; and clearly state if the member is in tension
or compression. Give your answers in kilonewtons (kN) to 2 decimal places.

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