• May 17th, 2015

Problem Solving

Paper, Order, or Assignment Requirements

 

 

My number for values x is (8818151)
 

PART 1:  FRAMES AND MACHINES

 

Question 1:   Frames and machines are composed of multi-force members connected together in a structural system. The primary difference between frames and machines is that machines have moving parts:

 

 

  • True
  • False

 

(1 mark)

 

The following figure applies to Questions 2, 3 and 4 (overleaf).

 

The structure is a knee-braced portal frame, similar to those found in industrial warehouses. The rafter of the portal frame (CDEFG) is subject to an uplift wind load, idealised here as a uniform distributed load. A piece of  heavy equipment is suspended from the rafter at E. The supports at A and I are pins. The joints C and G are smooth pins. The members BD and HF are connected to the portal frame with smooth pins at both ends.

Question 2:   Find the vertical reaction,

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