Given a chance to give a lecture on ‘Acoustics’ in class, what are the ten different important terms / topics you would like to teach in Acoustics? Make a report of your own lecture-notes with those terms giving clear explanations and including pictures /sketches / diagrams /tables.

For preparing a design calculation for the curtain wall system of the facade of a building, what is the sequence or step for whole design calculation? How many elements should be included to be calculated.

Calculate the field weights of the ingredients for 0.047 m³ of concrete by using ACI Method of Mix Design. Job specifications dictate the followings:

Cement content: 330 kg/m³

w/c: 0.58 (by weight, from the strength point of view)

w/c: 0.54 (by weight, from durability point of view)

Air Content: 1,40 %

For Fine Aggregate (Crushed): SSD Bulk Specific Gravity: 2.48, Total Moisture: 5,0 % and Absorption Aggregate: 2,8 %.

For Coarse Aggregate (Crushed): SSD Bulk Specific Gravity: 2.60, Absorption Capacity: 2.0 %, Total Moisture: 1.7 % and Dry Rodded Unit Weight: 1483 kg/m³.

Cement: Sulphate Resisting Cement, Specific Gravity: 3.18.

Describe in detail, the AISC Code in your own words.

A 400 mm concrete wall supports a dead load of 280 KN/m and a live load of 230 KN. The allowable bearing pressure is 230 KN/m2 and the level of the bottom of the footing is 1.5 m below the ground surface. Assume concrete weighs 24 KN/m3, that of soil is 15.74 KN/m3, fc’ = 20.7 Mpa, fy = 248 MPa,. Use 25 mm diameter reinforcing bars. Thickness of footing = 500 mm and concrete cover is 75 mm. Calculate the:

(a) effective soil pressure,

(b) width of wall footing, and

(c) spacing of bars at critical section.

2. A wall footing is to support a 400 mm wide reinforced concrete wall with a dead load of 270 KN/m and a live load of 210 KN/m. The bottom of the footing is 1.50 m below the final grade. Assume the soil weighs 15.78 KN/m3 and the allowable soil pressure is 190 Kpa. Use 75 mm as concrete cover, fc’ is 28 Mpa, fy is 415 Mpa, and concrete weights 23.5 KN/m3. Compute the:

1. Width and depth of footing
2. Spacing of 20 mm diameter main bars and 12 mm diameter longitudinal temperature and shrinkage steel
3. The development length required if bar location, coating, and size factors are all 1.0. Use normal weight concrete

Derive the relationships between maximum and mean velocities in case of laminar and turbulent flows?

(Fluid Mechanics)

geology to civil engineering

do the ideas in your report connect to learning outcome, or to what scholars have
written in their work of your topic?  What new ideas have you added to the conversation? What ideas do you analyse?

Design a plain concrete footing for a 400 mm reinforced concrete wall that supports a DL = 185 KN/m and 95 KN/m live load. The base of the footing is to be 1.2 m below the final grade. fc’ = 20.7 Mpa and allowable soil pressure is 200 Kpa, weight of soil is 15.82 KN/m3.

(ACI)

A 400 mm concrete wall supports a dead load of 280 KN/m and a live load of 230 KN. The allowable bearing pressure is 230 KN/m2 and the level of the bottom of the footing is 1.5 m below the ground surface. Assume concrete weighs 24 KN/m3, that of soil is 15.74 KN/m3, fc’ = 20.7 Mpa, fy = 248 MPa,. Use 25 mm diameter reinforcing bars. Thickness of footing = 500 mm and concrete cover is 75 mm.

Calculate the :

(a) effective soil pressure

(b) width of wall footing

(c) spacing of bars at critical section

The column has dimension of 500 mm x 500 mm and carries an axial load of 1210 KN dead load and 650 KN live load. Allowable soil pressure is 240 Kpa. There is 0.7 m height of soil having a unit weight of 15.74 KN/m3, fc’ = 20.7 Mpa, fy = 276.5 Mpa. The footing section is 2.8 m x 2.8 m with a 600 mm thickness. Use 25 mm diameter main bars.