CVE80018: Finite Element Methods and Applications - Engineering Assignment Help

Assignment Task:

Project Summary 

A bridge made of truss structure with the geometry shown in Figure 1 shall be designed in accordance to relevant Australian Standards. The bridge structure consists of primary beams, secondary beams, truss members, concrete slab, and concrete pier. The bridge is subjected to gravity load and moving vehicle load in accordance to AS5100.2:2017. Each pier column is supported by 4 bored piles. Further, the lateral capacity of the pier shall be evaluated for the given earthquake loadings. 

Standards 

• Use AS3600 for reinforced concrete member design 

• Use AS4100 for steel member design 

• Load factors are to be based on AS5100.2 (including dynamic load allowance) 

• Deflection limit shall be based on AS5100.2 (Clause 7.11) 

Design Hints 

• The secondary beam is connected with simply supported connection to the primary beam 

• Primary beam is a continuous beam which needs to be treated as beam element 

• Use PFC or UB section for primary beam, and UB section for secondary beam 

• Use SHS section for truss members 

• The concrete pier consists of 2 rectangular concrete columns (pier head is excluded in the analysis) 

• The maximum spacing between secondary beam is 2 m 

• The slab is made of 32MPa concrete 

• Use steel section grade 300 plus for all members 

• Assume the bored pile diameter to be at least 450 mm 

Your Tasks 

You are required to design adequate steel members for primary beam, secondary beam, and truss members. Further, you also need to analyse and design the concrete pier column including its size and reinforcement bars.

Your report should include: 

1. Description of the problem. 

2. Identification and computation of the loading parameters. 

3. Statement of assumption and limitation in the design approaches. 

4. Description of the Strand7 finite element model developed and used to analyse the problem. 

5. Determine and include the footing size and pile arrangement in the Strand7 model. 

6. Moving load analysis (load based on AS5100.2 and as specified in the question for each group). 

7. Determination of maximum demand from finite element analysis for each structural member. 

8. Design of secondary beam section. 

9. Design of primary beam section. 

10. Design of tension and compression members of the truss structure. 

11. Design of concrete pier column section. 

12. Check the maximum load carried by one bored pile. 

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