Week 6 CIVL2340 2018 PDF

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SCHOOL OF CIVIL ENGINEERING

CIVL2340: Introduction to Structural Design Tutorial exercises week 6

Question 1 A simply supported beam AB is subjected to a 40kN point load at mid-span as shown in Figure 1. The beam section is 360UB44.7 of Grade 300 steel. The two end supports at A and B, and the load point at C, all have lateral and twisting restraints. 1)

Calculate the Nominal Section Capacity, 𝑀𝑠 ;

2)

Calculate the Reference Buckling Moment, 𝑀𝑜 ;

3)

Calculate the Nominal Member Moment Capacity, 𝑀𝑏 ;

4)

Calculate the Design Bending Moment, 𝑀 ∗ ;

5)

Check if the beam AB has adequate strength to carry the 40 kN point load.

Figure 1

Question 2 (Exam 2017) A 11m long 310UB40.4 Grade 300 steel beam ABC is pin-supported at A and B and has a 2m cantilever over-hang BC, as shown in Figure 2. A point load is applied at the bottom flange at end C. Supports at A and B have full lateral and twisting restraints. Determine the design load P*.

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Figure 2

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