A slab plan is shown below. The typical beam width is
550mm
. The slab supports an indoor garden and has an exposure class of
S
-2. [10 marks] Given:
f_(c)=20MPa
f_(y)=400MPa
Super-imposed dead load
=8.0kPa
Live load
=2.4kPa
Which way does the slab span? Explain. Select a slab thickness, using an increment of 10
mm
, which will work for the entire slab. Check the requirements of Clause 9.3.3 for frame analysis and design the slab checking it against all code requirements. (Reminder: consider the number of spans when choosing load coefficients!) Select most economical rebar size and spacing. Design the slab using the same positive moment reinforcing in all bays, and the same negative reinforcing above the beams. (Design for 2 regions). Provide a design summary by sketching a section and indicating the design details.