Step 2 Analyse The Problem Your Team Has Been Asked To Design A Steel Beam Bridge With 10 M Length As A Simple Support 1 (25.84 KiB) Viewed 37 times
Step 2 Analyse The Problem Your Team Has Been Asked To Design A Steel Beam Bridge With 10 M Length As A Simple Support 2 (42.77 KiB) Viewed 37 times
Step 2. Analyse the problem: Your team has been asked to design a steel beam bridge with 10 m length as a simple supported beam. The beam weight is 200 kN considered as a distributed load over the beam length. In addition, in the worst case, loaded trucks with an average mass of 20 tons each will pass the bridge, they can pass the bridge together or individually. You only need to take the self-weight and truck loads into account in your calculations. Hint: you can consider two loads on the beam for each truck or one load including the weight of both trucks,
(d) Decide on an alternative steel hollow square section with the loading condition specified in section (al if the shearing stress is limited to 2 MPa. Discuss its difference with previous section in detail. Which section is your preference? Explain your reason. 5t 7.80 (e) Find the deflections of beam based on the worst-case scenario that you chose in part (a) above, and compare results. What is your judgement on the deflection? Is it acceptable or not? (f) One of the team members suggest replacing the two supports with two concrete pillars with circular cross section of diameter 20 cm. In case that the factor of safety (FS) should be considered to be 5 for the pillars and having the ultimate normal stress for concrete (ou) to be 30 MPa, decide whether to accept or reject this suggestion.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!