Complete the following problems. Show all calculations. Include any appropriate units in your answers. Round any

answers to two decimal places, maximum.

The following calculations should be made using the structural framing from the load-tracing model in EX4, and illustrated again below. Assume that the floor load and the roof load are equal to 70 lbs/ft2.

PROBLEM 1:

PROBLEM 2: PROBLEM 3: PROBLEM 4: PROBLEM 5:

Calculate the reactions for the 1st floor structural member spanning between 2 and 3 along line B. NOTE: In order to practice, use the static equations to solve for the reactions in this case (even if you have a symmetrical loading case).

Calculate the reactions for the 1st floor structural member spanning between A and B along line 3. NOTE: In this case, solve for the reactions in whichever manner you choose.

Calculate the reactions for the 1st floor structural member spanning between B and C along line 3. NOTE: In this case, solve for the reactions in whichever manner you choose.

Calculate the total load (P) in the 1st floor column B3.

NOTE: Remember that there are 2nd floor and 3rd floor columns above this one.

Beginning with the total load (P) from problem 4, consider what is the total load going down into the footing. Using this total load, calculate the required size for a square spread-footing supporting column B3. Assume a soil bearing capacity of 2,900 lbs/ft2, a concrete density of 150 lbs/ft3, and a footing thickness of 11 inches. Express your answer in terms of the minimum length for each side of the footing.

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