Questions
Which type of foundation (isolated, mat, pile, for example) do you feel is the most economically...

Which type of foundation (isolated, mat, pile, for example) do you feel is the most economically sound, based on time, cost, and labor?

In: Civil Engineering

Since the preliminary estimate and further investigations indicated that Claire's project is feasible, it is now...

Since the preliminary estimate and further investigations indicated that Claire's project is feasible, it is now time to move from the initial concept to final design. In order to do so, Claire will need to consult an architect and an engineer. Thankfully, Claire had an old friend, Tony Tect, who owned a local architecture firm and was willing to help. Claire explained her ideas to Tony and he said he would be happy to produce some drawings for Claire within a few weeks.

Meanwhile, Claire asked Bob Builder if he could advise her about the selection of a design engineer. Bob recommended she talk to Angie Neer from Eager Engineers & Partners. The engineering firm was in Charleston, WV, as was Tony’s office. Tony and Angie had completed several projects together before and knew the value of working hand in hand during the design phase.

Two weeks passed before Claire, Tony, and Angie met to discuss Tony's drawings. After Tony presented his design, Claire made some minor suggestions, but in general was very pleased. Angie then commented on the design, which started a discussion that went on for another hour. Claire wasn't initially comfortable, but later she realized that such discussion is necessary in order to increase the constructability of a structure. Thus, it was advantageous to have structural decisions made early in the design phase and not when the building was already under construction.

After the meeting, Tony sat down on his desk and began to incorporate all the changes into the design. Angie returned to her office to get started on the design for the site preparation. Since Tony agreed to arrange the necessary permitting, Claire had the chance to concentrate fully on preparing the marketing information for the project. However, she realized that she needed to know more about construction project delivery. She had no idea what type of Construction Firm she should utilize for this project. She decided to get some advice from the developer, Bob Builder.

Bob replied to her with the following memo:

In construction Claire, you have several options for your delivery strategy, including: Design-Bid-Build (DBB), Design-Build (DB), and Construction Management (CM). DBB is a very common way to deliver a construction project using a traditional organization. DBB calls for a complete design before site work begins and then a single general contractor assumes all the responsibility for constructing the entire project usually on the terms of a lump-sum contract.

This answer did not really help Claire to understand which type of project delivery method would be most appropriate for her situation. Also, the methods of awarding a contract and the type of contract were confusing to Claire, as she has no prior experience being an owner. Before she could consider making a final decision, she needed more information and recommendations. Claire sent Bob an e-mail asking for a more detailed analysis. This is where you come in to help Claire make an informed decision.

Questions

  • Which project delivery method do you recommend to Claire? Why?
  • Based on the delivery method you recommended, should Claire use a contract that is awarded competitively or a contract that is awarded by negotiation? Why?

In addition to the main contract for the entire project, Bob informs you, the intern, that there will definitely be a sub-contract with a specialty contractor for the site-work on the project.

  • Should the agreement with the site sub-contractor be a lump sum or a unit-price contract? Why?
  • Should this contract with the site sub-contractor be awarded competitively or negotiated?

In: Civil Engineering

Sketch and discuss the component of water cycle. Divide component into three sub regions

Sketch and discuss the component of water cycle. Divide component into three sub regions

In: Civil Engineering

When chlorine is used for disinfection of drinking water, chloroform can be produced by the reaction...

When chlorine is used for disinfection of drinking water, chloroform can be produced by the reaction of chlorine with residual organics in the water. For chloroform, RfDoral = 0.01 mg/kg/d and SForal = 0.0061 1/(mg/kg/d).

  1. Estimate the ingestion intake rate for non-carcinogenic and carcinogenic effects on an adult resident of a home receiving tap water with an average chloroform concentration of 65 mg/L.
  2. Calculate the potential non-carcinogenic and carcinogenic health risks associated with this ingestion rate.
  3. Are the risks presented considered acceptable by the EPA?

In: Civil Engineering

Estimate the 2020 and 2025 population of the City of Fresno, Ca (any any city as...

Estimate the 2020 and 2025 population of the City of Fresno, Ca (any any city as a valid example) by plotting the historic data and extrapolating the trend.

In: Civil Engineering

The sentence here is long please make it short but still have the same meaning. Please...

The sentence here is long please make it short but still have the same meaning.

Please do revision! (Revision of manual

Section 4.0 Maintenance 4.1

Care And Cleaning Clean the insert frequently so that soot, ash and creosote do not accumulate. Do not attempt to clean the insert, glass or door when the unit is hot. Special care must be taken with plated surfaces in order to maintain the finish at its original brilliance. Do not use an abrasive glass cleaner which will scratch the glass or plated finish. Use only a soft clean damp cloth on the door, since some cleaners may remove the plating or paint.

4.1.1 Glass Cleaning and maintenance

Under normal operation the stove is designed to keep the glass clean. Glass cleaning may be required when burning damp wood and/or when burning slow fires. Generally if the glass is not staying clean then the unit is being under fired. Dirty glass may be self-cleaned by burning a hot fire (i.e. dry wood and opened draft controls) for a couple of hours. Good burning techniques will result in clean glass. Hand clean the glass only when the fire is out and the insert is cold. A light film can usually be cleaned with paper towel and water. If heavy cleaning is required, a ceramic glass cleaner or polish is recommended, and should be rinsed off with water for best results. To change the glass remove the 6 glass retainers and metal frame. Remove damaged glass and install the new one in place. Make sure you have a gasket around the replacement glass. Reinstall the metal frame and secure it with the glass retainers. Do not abuse the door glass by striking, slamming or similar trauma. Do not operate the stove with the glass removed, cracked or broken.

In: Civil Engineering

1. These questions will revolve around the casting process: a. How can we produce a huge...

1. These questions will revolve around the casting process:

a. How can we produce a huge cylindrical hollow pillar using casting?

b. List process parameters that affect the fluidity of the molten metal inside the mold during casting process.

c. Why casting products have poor mechanical properties? What are common defects found in casting? List them.

In: Civil Engineering

Perform a dimensional analysis to obtain an equation for rising air bubble velocity, v. What variables...

Perform a dimensional analysis to obtain an equation for rising air bubble velocity, v. What variables would v depend on; i.e. what variables would you include in your analysis?

Assume that v is a function of d (air bubble diameter). pw (density of water), g (gravitational acceleration), and uw (viscosity of water), and perform the dimensional analysis. How many dimensionless groups do you get (and why)? Look up the defintion of Reynolds number... Is Reynolds number of the dimensionless groups resulting from your analysis?

In: Civil Engineering

Q: (TRUE) OR (FALSE): A foundation built on clayey soils should always be designed using total...

Q: (TRUE) OR (FALSE):

  1. A foundation built on clayey soils should always be designed using total stress parameters. ( )

  1. Differential settlement causes less structural damage than total settlement.( )

  1. The original bearing capacity equation was derived for plane strain conditions.( )

  1. Shearing of overconsolidated clays causes negative excess pore water pressure development.( )

  1. For normally consolidated clays, the angle of friction in terms of effective stresses is smaller than the angle of friction in terms of total stresses.( )

  1. The shearing phase in a typical drained test is performed with the valves open and therefore excess pore water pressures generated during the test should be zero( )

  1. An advantage of direct shear tests over a triaxial test is that drainage can be easily controlled with the drainage valve and therefore the strength parameters are more accurate . ( )

  1. In a direct shear test, a constant vertical load is applied keeping the normal stress during the test constant, and a gradually increasing horizontal load is applied until failure ( )

  1. The bearing capacity of a soil increases with the width of the foundation ( )

  1. The computations of bearing capacity should be compared for every geotechnical project with full-scale load tests of the bearing capacity of the soil in situ ( )

In: Civil Engineering

What is the main limitation of a digital frame camera when compared with an analogue one?

What is the main limitation of a digital frame camera when compared with an analogue one?

In: Civil Engineering

Topic: Self-Compacting Concrete 1)Break the topic down to be able to write the abstract and find...

Topic: Self-Compacting Concrete
1)Break the topic down to be able to write the abstract and find the list of references needed for the work

2) Preliminary abstract. The abstract should consist of one paragraph of about 250 words. The abstract should represent a concise statement of the scope, principal findings and conclusions of the paper.
2) List of references. The references should be more than 6 or more than 6 articles



In: Civil Engineering

Rudolph is a male professional ballet dancer who is looking for a new house. He wants...

Rudolph is a male professional ballet dancer who is looking for a new house. He wants to purchase a typical residential house which will suit his budget and his lifestyle. Being a professional dancer is a regime not just a job, and this means that Rudolph needs to train and rehearse on a daily basis. Hence, Rudolph intends to practice his dance routines in the lounge room of his new house on a frequent basis. Rudolph is your auntie’s protégé, and since you are a qualified Structural Engineer, she has asked you to assist Rudolph in finding a suitable house. You have had a meeting with Rudolph and obtained information that will assist you in analysing suitable houses and this information effectively forms your specification for this ‘project’. As a part of the decision-making process, you need to determine the following: i. The area in mm2 which Rudolph’s feet take up on the floor. ii. The pressure Rudolph will place on the floor when he is practicing his pirouettes. iii. The work that the floor has to do to stop Rudolph’s leaps. iv. The Live Load Q as per the Limit State Design Method for Rudolph’s dance routines based on the assumed velocity of his movements and leaps. v. What type of house would you recommend that Rudolph purchase? Why? vi. Rudolph has found a renovated, Victorian architecturally-styled house in a location close to his work. It is a three-bedroom, one-bathroom house constructed with floor joists at 450 mm centres and bearers at 1.6 m centres. The large 4 m x 5 m lounge room with polished timber floor boards looks particularly promising. a. What would you anticipate the Live Load capacity of the house to be based on the floor joists and bearers? b. Is this house suitable for Rudolph to practice his dance routines? Why/ why not? Provide a detailed response based on floor live loads considerations as per AS 1170.1 (discussed in the Reading Material for this module) and your calculations. c. Based solely on the dance practice criteria, do you recommend that Rudolph purchase this house? Why/ why not? Provide a detailed response with a justification for your answer. Assumptions  Size of average male foot – 330 mm x 120 mm  Ball of male foot – 165 mm x 120 mm  Mass of average-sized male ballet dancer = 85 kg  Maximum velocity Rudolph can attain is 5.88* m/s and he attains this velocity in 4.5 seconds from a stopped position; generally, he can continue at this velocity of 5.88 m/s or greater for at least 20 seconds. Consider Rudolph’s movements in this regard in terms of a vehicle. [*This velocity assumes Rudolph is capable of running 100 m in approximately 17 seconds, this is well below the Olympic records of most contemporary male athletes (Usain Bolt of Jamaica achieved a distance of 100 m in 9.68 seconds at the Olympics).]  Rudolph’s leaps – 1.5 m above the ground and landing on the ball of one foot. Note:  Ballet dancers tend to be smaller and lighter than the average for their sex.  The information and assumptions provided in this question are simplified and would not necessarily be utilised and calculated in this manner for a real-world application. [Hint: Newton’s Laws of Motion would be useful to determine some of the required information.]

In: Civil Engineering

Please give an explanation or what the rational of the code is about, I am trying...

Please give an explanation or what the rational of the code is about, I am trying to figure it out what it means so to better understand it.

Discuss the Code Provision on Square and Rectangular HSS and Box- Shaped Members, Rounds HSS, Tees and Double Angles Loaded in the Plane of Symmetry, and Single Angles.

In: Civil Engineering

A clearing contractor purchases a dozer with a delivered price of $275,000. The company believes it...

A clearing contractor purchases a dozer with a delivered price of $275,000. The company believes it can sell the used dozer after 4 yr (2,000 hr/yr) of service for $56,000. There will be no major overhauls. The company’s cost of capital is 9.2%, and its tax rate is 33%. Property taxes, insurance, and storage will run 4%. What is the time value method depreciation part of the ownership cost?

$29.94/hr

$36.52/hr

$10.44/hr

$39.84/hr

In: Civil Engineering

Write your plan for the investigation as described below and save it as a Word document.

 

Fire Suppression Investigation Plan

Write your plan for the investigation as described below and save it as a Word document.

  • Detailed one page summary of your plans, including sketches if necessary. (Note: If you cannot submit your sketches, describe them in words.)
  • Itemized list of materials, with total costs.
  • Stoichiometric calculations of the amount of reactants required to produce enough gas to extinguish the fires. Remember that some gas may be lost prior to its use as a fire extinguisher.

In: Civil Engineering