simply supported T-beam of 6 m clear span carries an
ultimate load of 38 kN/m. The beam section dimensions, support
particulars and tension reinforcement are shown in Figure
Q1.
Design the shear reinforcement for the beam.
Data Given:
The characteristic strength of the concrete is
25
N/mm2.
The characteristic strength of steel reinforcement is
460N/mm2.
The characteristic strength of shear reinforcement is
250N/mm2.
Nominal maximum aggregate size (hagg) is
20
mm
Diameter of shear links is
8 mm
Exposure condition is
mild
Minimum required fire resistance is 1.0
hour
In: Civil Engineering
1.What is the relationship between form and structure in the Empire State Building?
2. What is the relationship between form and structure in the John Hancock Center?
In: Civil Engineering
A −2.60% grade meets a +1.95% grade at station 44+25 and elevation 3386.96 ft, 315-ft curve, stakeout at half stations.
Part A
Tabulate station elevations for an equal-tangent parabolic curve for the data given above.
Express your answers, separated by commas, to six significant figures from lowest to highest elevation.
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In: Civil Engineering
A vertical curve is designed for 55 mi/h and has an initial grade of +2.5% and a final grade of −1.0%. The PVT is at station 114 + 50. It is known that a point on the curve at station 112 + 35 is at elevation 245 ft. What is the stationing and elevation of the PVC? What is the stationing and elevation of the high point on the curve?
In: Civil Engineering
In: Civil Engineering
In: Civil Engineering
The results of two drained traxial tests on a saturated clay follows Specimen I ?3 = 115 kN/m² , (Δ?? )? = 230 kN/m² Specimen II ?3 = 220 kN/m² , (Δ?? )? = 410 kN/m² Determine the shear strength parameters.
In: Civil Engineering
1) What is an important aspect of ethics that will keep you out of “The Gray Zone”?
Question 1 options:
A) Knowing right from wrong |
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B) Perception of others |
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C) Do the right thing even when no one else is looking |
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D) Don’t worry about it, society is binary when it comes to ethics |
Question 2 (5 points)
2) Who are project stakeholders?
Question 2 options:
A) Owner, Prime contractor, subcontractors |
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B) Engineer, Architect, Vendor |
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C) A group who may affect the project and be affected by the project |
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D) Customers, surrounding community, press (reporters) |
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E) All of the above |
Question 3 (5 points)
3) OSHA stands for______?
Question 3 options:
A) Occupational Safety in Human Affairs |
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B) Occupational Standards in Health Act |
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C) Occupational Safety and Health Administration |
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D) A whale that performs at Sea World in San Diego |
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E) I don’t know and I don’t care |
Question 4 (5 points)
4) Which of the following would NOT be considered a Direct Cost?
Question 4 options:
A) Material |
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B) Equipment |
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C) Project Overhead |
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D) Labor |
Question 5 (5 points)
5) Which form of company ownership includes two or more owners whose personal assets are at risk?
Question 5 options:
A) Sole Proprietor |
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B) Partnership |
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C) Limited Liability Company |
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D) Corporation |
Question 6 (5 points)
6) Which one is not considered a form of ADR?
Question 6 options:
A) Mini Trial |
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B) Dispute Review Board |
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C) Arbitration |
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D) Mediation |
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E) Negotiations |
Question 7 (5 points)
7) Arbitration is Legally binding and is typically included with the contract documents?
Question 7 options:
True | |
False |
Question 8 (5 points)
8) What is considered the stage in the progress of the Work when the Work or designated portion thereof is sufficiently complete in accordance with the Contract Documents so that the Owner can occupy or utilize the Work for its intended use
Question 8 options:
A) Final Completion |
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B) Substantial Completion |
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C) Significant Completion |
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D) Commissioning Deadline |
Question 9 (5 points)
9) What are the primary purposes of OSHA?
Question 9 options:
A) Set & enforce safety standards |
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B) Train and educate |
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C) Provide assistance and outreach |
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D) All of the Above |
Question 10 (5 points)
10) The ________ the Experience Modification Rate (EMR) of your business, the ________ your worker compensation insurance premiums will be.
Question 10 options:
A) Lower, higher |
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B) Lower, lower |
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C) Higher, Lower |
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D) Higher, higher |
Question 11 (5 points)
11) What might contingency be used for?
Question 11 options:
A) To cover unforeseen costs |
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B) To manage a job's budget |
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C) To hold an owner liable |
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D) To perform a quantity takeoff |
Question 12 (5 points)
12) Which of the following reason for defects can a Contractor trypically not Control?
Question 12 options:
A) Faulty Design |
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B) Faulty Workmanship |
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C) Faulty materials |
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D) All of the above |
Question 13 (5 points)
13) What type of contract does the owner control contingency?
Question 13 options:
A) Guaranteed max Price |
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B) Lump Sum |
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C) Design Build |
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D) Design Bid Build |
Question 14 (5 points)
14) What is construction quality?
Question 14 options:
A) Meeting the specifications in the contract documents |
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B) Meeting the needs and expectations of the owner |
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C) Ensure facilities perform to its intended purpose |
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D) Avoid dispute claims |
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E) All of the above |
Question 15 (5 points)
15) Which form of dispute resolutions does not allow an appeal process?
Question 15 options:
A) Litigation |
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B) Mediation |
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C) Communication |
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D) Arbitration |
Question 16 (5 points)
16) What is included in a Gannt Chart?
Question 16 options:
A) Permitting and long lead items |
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B) Critical Path |
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C) Must show work being completed within contractual timeline |
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D) Float |
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E) All of the above |
Question 17 (5 points)
17) Right-to-work state prohibit unions from organizing?
Question 17 options:
True | |
False |
Question 18 (5 points)
18) Which of the following is considered a soft skill?
Question 18 options:
A) Reading Blueprints |
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B) Building a schedule |
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C) Communicating with people |
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D) Performing quality control |
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E) All of the above |
Question 19 (5 points)
19) Who is a safety officer on a project site?
Question 19 options:
A) The project safety officer |
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B) Superintendent |
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C) Project Engineer |
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D) Everyone on the project site |
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E) Foreman |
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F) None of the above |
Question 20 (5 points)
20) What plan is not part of the key elements for Site Logistics?
Question 20 options:
A) Job site layout plan |
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B) Site Utlitiy plan |
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C) Emergency Action plan |
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D) Schedule contingecy plan |
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E) Storm water pollution plan |
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F) Hoisting plan |
Question 21 (5 points)
21) Labor unions use collective bargaining for what?
Question 21 options:
A) Wages |
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B) Benefits |
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C) Working Conditions |
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D) Lobbying |
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E) All of the Above |
Question 22 (5 points)
22) Do Heavy Civil contract documents typically use the CSI division format?
Question 22 options:
Yes |
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No |
In: Civil Engineering
1. How is attempt defined?
2. How far must it go towards completion to constitute a crime?
In: Civil Engineering
Describe the five different techniques demonstrated.
Background
Non-Destructive Testing During the design process great care must be taken to match the design to the application. This process involves, among others, material selection, material processing, and service condition analysis. As we have found through the material outlined in the text a great number of decisions have to be made during the design process to insure that the product meets all of the needs of the application. Once a product is produced we must evaluate its quality to determineio9 if the design is successful. Destructive testing will give us some information about component properties, but requires the loss of the product. Some types of destructive testing can also be impractical for large components. In some instances only a small number of components are actually produced and destruction of any of the parts may be too costly. Nondestructive techniques are used to evaluate the quality of components without the sacrifice of the part. These methods can be used together with fracture toughness information to evaluate whether flaws will cause crack propagation or can be used to monitor the growth of cracks that could result in fatigue failure. The simplest nondestructive test method, abbreviated NDT, is a visual inspection. Often this visual inspection can reveal cracks or other flaws such as in welds or castings or other production problems.
Many quality problems at the surface may be invisible to the naked eye or may exist hidden in the interior of the component. For these hidden or microscopic flaws other techniques are used.
These techniques include:
Magnetic-Particle inspection Inductive (eddy current) inspection
Fluorescent-Penetrant inspection Radiographic inspection
Dye Penetrant inspection Acoustic-Emission inspection
Ultrasonic inspection
In: Civil Engineering
A 240 hp (power-shift) dozer is used in a pushing operation. The dozer is equipped with a straight blade. The material (dry and noncohesive) weighs 98 pcf in the bank state. It is estimated the material will swell 6%, from bank to loose state. The center-of mass-to-center-of-mass pushing distance is 200 ft. Job efficiency can be assumed to be equivalent to a 45-min hour. Calculate the production in bey per hour and the direct cost of the proposed earthmoving operation in dollars per bey. The company's normal O&O cost for these machines is $95 per hour and the operator's wage is $15.00 per hour plus 40% for fringes, insurance, and worker's compensation.
In: Civil Engineering
Give design criteria or basis for designing a foundation project
In: Civil Engineering
In: Civil Engineering
In: Civil Engineering
A highway contractor has opened a cut in fine silty sand (SM). Because of the cut location and lack of drainage, surface water has drained into the cut, leaving the material very wet. Rubber-tired scrapers are hauling material from the cut to an adjacent fill. The material is being placed in the fill in 20 to 25cm lifts and compacted by heavy sheep foot roller towed by a crawler tractor. It is apparent that the specified compaction (95% of standard AASHTO density) is not being attained. The sheep foot roller not “walking out and scraper tires are causing the compaction problem? What would you suggest to the constructor to improve the compaction process? Ideally, concrete should be poured at temperatures between 16°C and 38°C.
In: Civil Engineering