CIV4508: Understanding of Concepts of Load Path - Engineering Assignment Help

Assignment Task:

Task:

In this assignment, you need to demonstrate your understanding of concepts of load path, load estimation, analysis and design of frames, footings and retaining wall, so primarily, modules 1-5.
 

DESIGN BRIEF
The figures above show a typical floor plan and section elevation of a three-storied reinforced concrete office building to be constructed at Toowoomba. Drawing is not to scale. All units are in mm. This is a framed reinforced concrete building monolithically cast with the beams along grids A, B and C supporting the RC floor. There are no beams along grids 2, 3, 4 and 5, beams are running along grids 1 and 6, and along A, B and C.

At each floor level, the brick wall is sitting on the beams at that floor level. The beams transfer the load to the columns rigidly connected to them at their supports. Assume that the thickness of the floor slabs and the roof slab are 200 mm and they all have the same beam layout. Slope of the inaccessible roof (except for maintenance) can be ignored and can be considered as flat. The roof has an overhang of 300 mm all around the building as shown in the fig. above.

The ground floor slab is slab-on-ground so the load will be transferred directly to the soil below. The brick walls at the ground floor level have masonry footings. Beams along grids 1 and 6 are of 350 mm width x 600 mm deep and support the brick walls completely and the slab as well. Cross-section dimensions of beams along other grids are shown in Table 1. Note that the beam depth in Table 1 is the overall depth including the slab depth Furthermore, assume that the columns B1, B6 are of the same size, similarly columns B2-B5 are of the same size. All the columns of A and C grids are of the same size (350 mm x 350 mm). Centre-lines of the columns are aligned along with the grid lines.

Because of the space issues and to eliminate the differential settlement, combined footings are to be designed for columns A1, B1, C1, then A2, B2, C2 etc. All the columns are rigidly connected to footings. All the glass windows are 4000 mm x 1800 mm x 20 mm. The brick masonry wall is 180 mm thick.

DESIGN DATA

•  Concrete characteristic strength, f'c = Y MPa
•  Yield strength of reinforcing steel, fy = 500 MPa.
•  Density of RCC, ? = 2500 kg/m3.
•  Allowable bearing capacity of subsoil qa = 200 kPa.
•  Glass windows are of unit weight, ? = 2600 kg/m3.
•  Exposure classification: A2.

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