For the column and beam layout, find the required slab thickness and spacing of #4 reinforcing bars, if the loading in addition to self-weight, is 2 point loads of 2 kips at the third points of each span (4 point loads total) f'c =4000psi fy = 60ksi d = hSLAB - 1in,
weight of reinforced concrete is 150pcf, width of beams - 12in, space between borders of beams - 7ft.

A point within an embankment slope of sand has a total vertical normal stress (y) of 100 kPa, a total horizontal normal stress (x) of 60 kPa, a horizontal shear stress (xy) of 20 kPa, and a pore water pressure of uo. The sand has a peak effective friction angle of 30 degrees. (a) Determine the value of uo that would cause the sand to fail in drained shearing. Assume the total normal stresses and shear stress remain constant. (b) For the above value of uo, determine the major and minor principle effective stresses. (c) For the above value of uo, determine the orientation of the major principle stress (in degrees from vertical, clockwise or counterclockwise)

- Based on the statement below, prepare a personal development plan based on this person's goals, please answer in paragraphs (maximum 1000 words)

My goal is to become a leader in the construction industry. The construction industry is my passion, I have had 3 years of experience in fields such as formwork, aluminium window and door installation, general labouring on site and traffic control.

whats the difference between SCS curve number and Rational method with
USGS regression method results from stream stats:
Which method is most useful?why?
why they are different?
how different in prediction?

Topic Green Building Finance:

Research and discuss innovative financing options and tax incentives for green building. (Note: Briefly respond your answer in 1-2 paragraphs minimum.)

The clay layer below is covered with a layer of fill as shown. Assume the fill is placed instantaneously.

1. Estimate the magnitude of primary consolidation settlement for the clay layer due to placement of the fill.
2. Plot the distribution of pore pressure with depth before the fill is placed.
3. Plot the distribution of pore pressure with depth immediately after the fill is placed.
4. Plot the distribution of pore pressure 10 years after the fill is placed.
5. Determine how long it will take to reach 90% of the final primary consolidation settlement.

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

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?

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, RfD_oral = 0.01 mg/kg/d and SF_oral = 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?

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.

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.

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.