Truss Analysis and Design - Report Writing - Engineering Assignment Help

Assignment Task

COURSE OBJECTIVES: It is beneficial to familiarise yourself with the relationship between the assessment and the course objectives.

• CO1: Select and apply mathematical procedures to determine forces acting on structures and determine costs and use this to justify design decisions.

• CO2: Analyse and design physical structures and representations of structures to allow the calculation of support reactions, shear forces, bending moments and deflections.

ASSESSMENT DESCRIPTION - In this test, apply the relevant concepts covered in this course. In the first question, design different members of a truss, and in the second question determine loads, bending moments, shear forces and deflections in a building structure.

Where relevant, reference the relevant Australian Standard Loading Codes AS1170 and ASI Design Capacity Tables for Structural Steel.

QUESTION 1 - A pin jointed steel truss with bolted connections and the values presented in Tables 1 and 2, as well as your mathematical thinking and reasoning to respond to the following questions.

a) Ignoring the self-weight of the members, determine the support reactions.

b) Ignoring the self-weight of the members, determine the force in the three members AD, BD, BC.

c) Design members AD, BD, BC. Use Equal Angle (EA) Sections for members in Tension and assume the member is bolted with 1 Hole in Leg. Use Square Hollow Sections (SHS) for members in Compression. For zero-force members use SHS 65x65x1.6. 

d)Determine the stress, strain and elongation/shortening of member BC (Assume Esteel = 200,000 MPa) 8 marks e)Design the bolts for the connections on members AD, BD, BC. Use the same “Grade:8.8” bolt size for all connections. That is, whatever bolt size is selected on one member, needs to be used on the other two members.

f) The steel price is $13 per kg, and the bolt price is provided in Table 2. Determine the total cost of the material to build members AD, BD, BC.

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