CIV2235—STRUCTURAL MATERIALS
Week 9 Practice Class
Actions and Action
Assume that you are designing an office building of 10 stories. The floor plan is given in Fig
1 and the cross sections are shown in Fig 2. The data for the problem is:
n Density of concrete: 2500 kg/m3
n Superimposed dead load: 1.5 kPa
n g = 9.8 m/s2
n The distance from top of slab to top of slab is 4 meters
n The floors and roofs thickness is 130 mm
n Column C1 is a circle of diameter of 900 mm .
Fig 1. Floor plan .
Fig 2. Cross sections at AA, BB and CC.
Question 1. Determine the dead load and live load in the slab (10 marks) .
Question 2. Determine the dead load and live load in the joist (secondary beam) B1 (20 marks) .
Question 3. Determine the dead load and live load in the girder (primary beam) B2 ((30 marks) .
Question 4. Determine the maximum bending moment and shear force in B2 for permanent action (20 marks) . Assume the supports are simple supports .
Question 5. Determine the maximum bending moment and shear force in B2 for imposed action (20 marks) . Assume the supports are simple supports .