Assignment 2 Investigation of Structural Floor Options Due by: 11:59pm Wednesday 26th April 2023
The schematic plan of an llstorey high-rise Canberra CBD Office Building with a concrete core to resist wind loads and simply supported steel beams to support gravitational loads is shown in the figure below.
A typical steel beam Al is 6.6m long and of size 530 UB 82. The beam intersects columns at the facade of size 250 x 250 x 16 SI-15 as shown.
6.6m
Beam Layout
FLOOR STRUCTURE SCHEME
Beam Al
530 UB 82.0
aaI
250 x 250 x 16 SHS
Column
Connection
(a) Using the archetypical floor systems discussed in lectures, give form to the above schematic by devising a preliminary design scheme for a concrete floor system that utilises the steel beams as primary framing. (b) Estimate the slab thickness and steel reinforcement pattern (Note: that the addition of secondary beams at the corners may be undertaken if you deem it necessary). (c) Prepare a CAD Drawing showing the typical floor arrangement including supporting beams and columns. Provide a slab plan showing reinforcement disposition and a typical section. If you are not conversant with CAD, then a neat hand-drawn technical drawing will suffice. The exercise of a good standard of draftsmanship is expected. (d) For your chosen floor, floor slab thickness and a floor-to-ceiling soffit height of 4.0m, calculate the type, number and distribution of the props required to construct the floor. Prepare a propping plan showing the arrangement you have developed.Comment on the safety of the structural arrangement when subjected to fire, and the way(s) in which fire safety can be enhanced.
(e) The above should be presented in a Design Report Format with your drawings attached.
