MAJOR DESIGN ASSIGNMENT 

Design Brief Figure 1 represents the floor plan of an office building to be constructed in the Central Business District of Sydney. The building is to be eight storeys in height with each level being used as an office and with one levels of car park below the street level. Your team is assigned to design all the columns below 8th level, the 7th and 8th floor slab, the 7th and 8th level beams as shown in Figure 1 and Figure 2 in the dotted box.

Typical floor to floor height = 4 m

Design Information and Requirements

 Beam concrete compressive strength, f’c = 32 MPa (You are allowed to increase f’c if needed)

 Reinforcing steel strength, fy = 500 MPa (Use N Class bar)

 Concrete density = 24 kN/m3

 Columns are 500 mm x 500 mm

 Beam widths are fixed at 500 mm

 Maximum beam depths should not exceed 1000 mm

 Slab depth is 200 mm

 Reinforced concrete service core is 500 mm in wall thickness

 Concrete slabs are supposed to be built monolithically with the supporting beams therefore the beams have to be designed as L or T-beams

 All the outer beams have to be designed as continuous beams

 All the calculations have to be presented in the report

Part 1: Load Combinations:

a) Determine the load combinations for the permanent, imposed and superimposed loads using AS/NZS 1170.0 and 1170.1.

b) Determine the required design actions such as M*, V* and N* for slab, column and beam designs for both serviceability and strength limit states.

c) Provide the required bending moment, shear and axial force diagrams for the beams, slabs and columns. 

Please take notes that wind loads will be resisted by the service and lift core of the structure which is subcontracted out. (Not required to design by your team)

Part 2: Analysis and Design:

Design all the required members such as the floor slabs, columns and beams and provide adequate drawings or sketches showing elevations and cross-sections for the each members.

a) Floor slabs

b) Columns

c) Primary and secondary beams

d) Detailing, report presentation and group management

Additional Information

All design and detailing is to be in accordance with AS 3600.

All loads are to be determined using AS/NZS 1170.0 and 1170.1.