a) Discuss the economic, aesthetic & structural importance of a flat plate slab.
b. Discuss the structural performance of a flat panel slab based on
-load increment
-span increment
-depth increment
-edge conditions
C. Discuss the conclusion & recommendations of a flat plate slab on the building industry of Botswana

Discuss the same question, a, b & c for a one way slab.

please write for me an INTRODUCTION ( in detail ) about Sieve Analysis of Aggregates .

Please use Computer Font.

Briefly elaborate on the concepts given below, each in maximum 300 words. There is no need to
include figures. Plagiarism checker is active.
Response spectrum analysis
Response history analysis
Modal analysis
Artificial earthquake records
Effect of “building irregularities” on seismic design

1. The ultimate BOD of a river just below a sewage outfall is 55.0 mg/L, and the DO is at a saturation value of 12.0 mg/L. The deoxygenation rate coefficient kd is 0.30/day, and the reaction rate coefficient kr is 0.90/day. The river is flowing at the speed if 52.0 miles per day. The only source of BOD on this river is this single outfall.

   1. Find the critical distance downstream at which DO is a minimum.

   2. Find the minimum DO.

   3. If a wastewater treatment plant is to be built, what fraction of the BOD would have

      to be removed from the sewage to assure a minimum of 5.0 mg/L everywhere

      downstream?

Provide a discussion on each of the following topics. When necessary, define the term, explain the term, discuss the purpose and use, and provide sample calculations.

[1] Live load and its variation with tributary area [Tributary Reduction Factor] for a column in a multi-story building.

[2] Design Principles for Structures, and the philosophies behind “Limit States Design”.

Multi-wells are used for dewatering at an excavation site. The dimension of the excavation pit is 150 m × 200 m. The height of the phreatic level above the impermeable layer before pumping is 15 m. The height of the phreatic level at the center of excavation pit after pumping is 6 m. The soil permeability k = 2.3×10-5 m/s. The wells have a diameter of 200 mm. Determine the number of wells required for this dewatering project

Vehicles arrive at a toll both starting at 7:00 A.M. at a rate of λ(t) = 5.1 – 0.05t [with λ(t) in veh/min and t in minutes after 7:00 A.M.]. The first operator processes cars at a rate of 3 veh/minute 7:00 A.M. until 7:15 A.M when the person leaves because of illness. From 7:15 A.M to 7:25 A.M, no one is at the toll booth but a new operator arrives at 7:25 A.M and processes at a rate of μ(t) = 8 + 0.3t [with μ(t) in veh/min and t in minutes after 7:25 A.M.]. Assuming D/D/1 queuing, what is the maximum queue length (in vehicles) and the average delay per vehicle?

A 2 by 4 wood beam (E = 2000 ksi) with an allowable flexural stress of 1200 psi is subjected to bending around it's strong axis. Determine the % increase in flexural moment capacity if the beam is reinforced by 2 0.25" steel (E = 30000 ksi) plates with an allowable flexural stress of 24000 psi at the top and the bottom of the beam respectively.

In sedimentation design, depth is not used for performance (removal) calculations. However, a minimum clarifier depth (side water depth) is often specified. Why?

A 10 m wide road is to be constructed across a site where the soil profile consists of 3 m of sand, overlying 1 m of peat, over a deep sand deposit. The water table is 1 m below the soil surface. The road pavement applies a uniform stress of 20 kPa to the underlying soil. The peat is lightly over-consolidated with an over-consolidation ratio of 1.25, has a uniform void ratio, e = 2.0, a re-compression index, Cr = 0.2, a compression index, Cc =1, and a specific gravity, Gs = 2.5. The sand can be assumed to be incompressible, with d = 17 kN/m3 and sat = 20 kN/m3 . Calculate the settlement beneath the centre and beneath an edge of the road.

The answer is 28.8mm beneath the centre and 6.4mm under the edge but I can't understand why.

Considering the entire procurement process (i.e., bidding through the contract award periods), what type of bonds are normally required to be provided by a bidder/proposer to be awarded a public works construction project?

A downgrade of 5.0% meets an upgrade of 4.0%. This curve passes through the lowest point at 20 metres to the right of the intersection point

1. Find the length of the curve.

2. The reduced level at chainage 2450m, which is located on the downgrade, is 214.5m on the gradeline. The reduced level of the curve at the lowest point is 210m. Find the chainage at the lowest point.

3. Find the chainages and reduced levels of the two tangent points.

In Surveying in the PLSS:

Match which method to use to set the lost corner type:

1 .Land Grant Corner

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion      

2. 1/4 corner

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion   

3. Section Corner interior of a township

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion   

4. Corner on the baseline

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion   

5. Township corner common to two townships

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion

6. Meander corner where measure terminated

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion   

7. Section corner common to only one section

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion   

8. Corner on range line with angle point in the record

[ Choose One ] 2 point control, Grant boundary method, Single point control, Double proportion, Modified single proportion, Single proportion with curve adjustment , 3 point control, Single proportion

Give one Material Category and its Component that have Interesting Technology in the fields of Materials Science And Engineering (MSE).

• Description of what you researched.
• How it relates to MSE.
• Why it is of interest to you.
• How it has been or will be used (application).
• How it might help society.