Using 7/8 in diameter ASTM A325-N bolts in standard holes and E70 electrodes. Design a bolted flange-plated FR moment connection between a W12×50 beam and a W14×90 column flange (RD = 15 kips; MD = 60 kip-ft) and (RL = 30 kips; ML = 120 kip-ft). For shear plate use three bolts:(i)Check the beam available flexural strength (ii)Design single-plate web connection (iii)Check the connecting elements rupture strength at welds Sketch the connection.

An active army depot looking into full scale biotechnology to treat explosives contaminated soil. Reported concentrations of trinitrotoluene (TNT) and 1,3,5-trinitro-1,3,5-triazine (RDX) are 88,000 mg/kg and 5,250 mg/kg in the blended soil, respectively.

As an environmental engineer tasked with this site, Select the best bio-remediation option to deal with this problem and explain your reasoning, with advantages and disadvantages.

A 10-inch-thick concrete bearing wall of height 10’ is laterally supported at 20’. The wall is subjected to axial loads comprising of dead load of 20 kip/ft (including self-weight) and a live load of 15 kip/ft. The top and bottom of wall is restrained against lateral movement and there are no out of plane loads. Can the wall sustain applied loads? If so, determine the reinforcement required in wall. Use f’c = 4000 psi and fy = 60ksi

show all steps clearly please

According to the design standards, the durability of RC structures depends on which important factors?

Explain the simplified method of analysis of one way slabs in RC structures.

1. You are designing a concrete mix. indicate if you should use an aggregate with high or low absroption or if it doesnt matter and explain your answer. 2. You are designing a asphalt mix. indicate if you should use an aggregate with high or low absroption or if it doesnt matter and explain your answer.

Using the absolute volume method, a colleague started a mix design for a simple concrete foundation in a mild climate and got through Step 5 and has asked you to finish the work. They have already determined the mix needs:
• a w/c ratio of 0.45
• a 2” slump
• 1830 lb of gravel in the oven dry conditions,
• and 3.5% air provided by air entrainer.
The available gravel (coarse aggregate) is subangular with a NMSA = 3⁄4”. It has a specific gravity, Gs = 2.7, with a moisture content of 1.8% and an Absorption of 2.2%. The available sand (fine aggregate) has a specific gravity, Gs =2.45, with a moisture content of 3.8% and an absorption of 2.4%. Gs of cement = 3.15.

For each cubic yard of concrete for this mix, determine:
• the total weight of water, cement, moist sand, and moist gravel required. Don’t worry about the amount of
air entrainer product in fluid ounces.
• Summarize the total mix design (neglecting the required fluid ounces of air entrainer)

Course aggregate:

Fine aggregate:

Cement:

Water:

Methods and possible ways of getting data that can be used to Quantify rail network and model its impact.

What is the environmental impact assessment (EIA) and how can we apply it to two different groups of the project:

1. Water contamination on mining site

2. Building a new cement factory in the GTA area with a total capacity of 100 tons per year

Using the absolute volume method, a colleague started a mix design for a simple concrete foundation in a mild climate and got through Step 5 and has asked you to finish the work. They have already determined the mix needs:
• a w/c ratio of 0.45
• a 2” slump
• 1830 lb of gravel in the oven dry conditions,
• and 3.5% air provided by air entrainer.
The available gravel (coarse aggregate) is subangular with a NMSA = 3⁄4”. It has a specific gravity, Gs = 2.7, with a moisture content of 1.8% and an Absorption of 2.2%. The available sand (fine aggregate) has a specific gravity, Gs =2.45, with a moisture content of 3.8% and an absorption of 2.4%. Gs of cement = 3.15.

For each cubic yard of concrete for this mix, determine:
• the total weight of water, cement, moist sand, and moist gravel required. Don’t worry about the amount of
air entrainer product in fluid ounces.
• Summarize the total mix design (neglecting the required fluid ounces of air entrainer)

Course aggregate:

Fine aggregate:

Cement:

Water:

Please, I need tips on how to model land use and accessibility of rail station.

A flexible pavement consists of surface layer (asphalt concrete), granular base layer and subbase layer. Please determine the thickness of each layer using AASHTO (1993) design method using the Design Chart

• Design ESAL = 2 million
• It takes approximately one week for water to be drained from within the pavement, and the pavement structure will be exposed to moisture levels approaching saturation for 40 percent of the time
• Resilient modulus of subgrade is 9000 lb/inch/inch; Resilient modulus of base is 31,000 lb/inch/inch; Resilient modulus of subbase is 13,500 lb/inch/inch
• Reliability level = 99%
• Standard deviation = 0.5
• Initial serviceability index, pi = 4.5; Terminal serviceability index, pi = 2.5
• a1 = 0.44; a2 = 0.14; a3 = 0.10

An approach to a signalized intersection has a saturation flow rate of 1800 veh/h. At the beginning of an effective red, there are 6 vehicles in queue and vehicles arrive at a rate of 900 veh/h. The signal has a 60-second cycle with 25 seconds of effective red. What is the total vehicle delay after one cycle?

An open cylinder 30 cm in diameter and 80 cm high containing water is rotated about its vertical axis at a speed of 240 rpm. If the Cylinder is brought to rest now, what would be the depth of water in it? If the speed is increased to 420 rpm. How much water will be left in the cylinder in liters? Specific Question If the speed is increased to 420 rpm. How much water will be left in the cylinder in liters?

4. Design Considerations. An airplane wing has a long beam along its span called a spar. Select a material for the spar in a small aircraft. Explain at least 4 considerations for desirable properties and use data from the text to support your choice.

5. Design consideration. Your company needs a large tapered pin to connect two train cars through solid steel loops. Select a material for the pin. Explain at least 4 considerations for desirable properties and use data from the text to support your choice.