Q1.: Calculate the amount of (cement+ sand+ gravel) for foundation below: If concreate grade M25 (2) 2418 3420 (1) stimps $10@250 (3) -1m Sec a-d T 0.5m Concrete 1:4:8 ·10m. 72 20m
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- Determine the amount of rebar needed for the foundation walls shown in the figures. Allow for two inches of cover. Add 10 percent for lap and waste to the continuous bars. Horizontal and vertical rebars should be "#4 Rebar @ 12" O.C Bothways".The load required to degrade the structural integrity of a foundation is normally distributed with amean of 22 tons and a standard deviation of 5 tons.(a) While at the site, a fellow engineer asks you the approximate probability that it takes between 17and 27 tons to degrade the foundation. Being knowledgeable in statistics, what you are able totell him off the top of your head?(b) Verify that your estimate in (a) is accurate using R.(c) A similar foundation is to be constructed so that the load required to degrade its integrity is againnormally distributed with a standard deviation of 5 tons, but the improved foundation is requiredto only have a 20% chance to degrade under a 22 ton load or less. What must the mean of thisdistribution be so that the foundation is constructed to the given specifications? Use R.A driveway requires 4 2/3 truckloads of gravel. If a truck holds 3 1/3 cubic yards of gravel, how many total cubic yards of gravel are used for the foundation?
- B=L=1.5 and Q = 100kN calculate the primary consilidation settlement of the foundationAssume you’re bringing in fill on a city lot that measures 500 meters by 1000 meter. Becauseof a mistake in grade, your estimate of imported soil is wrong. It leaves the entire site 5 cmbelow the specified finished grade. How much more soil is needed to correct the 5 cm mistake?Hello, need help finding the consolidation settlement for the given footing.
- The university wants to build a two-storey bungalow guest house building as shownin FIGURE Q2. You as a university engineer in the development office are asked toprovide views on the construction of the foundation for the building, whether it is ashallow foundation or a deep foundation. From your point of view, signify FIVE (5) differences between shallow and deep foundations in terms of definition, type, cost,advantage and disadvantage to be presented to the universityCalculate the tender rate per bank cubic meter for an excavation of a trench given:• Hire cost = R800 per hour, including owning costs• Fuel Consumption = 4 l/h of Diesel fuel at R15/h• Scoop capacity is 35 banks m3/h• Operating factor = 0.8• Dimensions of trench: 10m x 3m• Operator earns R40.41/h• Head office overheads = 30%• Site overheads = 20%• Profit margin factor = 0.045• Contractor has perceived no risk on this operationYou are aconstruction engineer workingon a largeconcrete foundation project, involving theplacement ofover 500,000 c.y of concrete. The construction site is adjacent toa salt-water source (bay) & it is decided to set up a concrete batchplant onsite. The project schedule shows that the various concrete pours are to take place from April to September. What considerationswould you makewith regards to cement type, aggregate, waterquality, and admixtures? Explain your considerations in detail.
- A rectangular footing has a dimensions shown and is acted upon by a dead load of 722 kN and a live load of 620 kN. The column dimension is 326 x 662 mm where he shorter dimension is parallel to B The thickness of the footing is 408mm. f'c=28 MPa and fy=420 MPa for diameter 20mm bars. A=3.1m and B=5.1mA rectangular footing has dimensions shown and is acted upon by a dead load of 382 kN and a live load of 536 kN. The column dimension is 307x560 mm where the shorter dimension is parallel to B. The thickness of the footing is 656mm. fc=28 MPa and fy=420 MPa for diameter 20mm bars. A=2.6m and B=5.2mThis problem has been solved! See the answer Suppose you are to construct a column footing for your project. The 600x600x250mm footing has its top surface located at 650mm below the NGL. If 50mm is allotted underneath the bottom surface of the footing for its gravel bedding, and that the soil is very stiff that the exact perimeter of footing can be excavated in the ground, what is the total volume of soil that needs to be excavated? Based from the previous question, if you are to put backfill in the excavated column footing given that the column has a 300x300mm cross-sectional dimension, determine the volume of backfill. Assume that the soil is very stiff that the soil does not require being compacted upon backfilling it. Answer the second question please.