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Engineering · Civil Engineering
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归|ーHW-1 2019.pdf 1 %2020 19.pdf The following residential building consists of 4 typical floors, a roof, and a stair room roof. All spans are 24 long and all floors are 12 tall O Type here to search 1/20/2019归|ーHW-1 2019.pdf ← → O ự | O file:///Eyconcrete%20Class/ 196202019.pdf O Type here to search f. ^ 1/20/2019归|ーHW-1 2019.pdf ← → ○ ự | O file:///Eyconcrete%20Class/ 1 %202019.pdf ☆ 左久这 เดิ ETABS EVALUATION VERSION , NOT FOR COMMERC AL USE . Propel 히 × le Edt View Define Draw Select Assign Anlye Dsplay Design Options Tools Hel hModel Explore rane Secton Wall Sen ping Propet X225 Y835 Z12 O Type here to search f. ^ 6-24 PM 1/20/2019归|ーHW-1 2019.pdf ←→Of. Ofile:// Made Dplay Tables Repots Plan View 9m6-Z.G8 6-24 PM O Type here to search 1/20/2019 무归|ーHW-1 2019.pdf 1 %2020 19.pdf The structural components dimensions are as follows Columns 24x24 Girders 16x20 Joists Walls Floor Slabs : 8 : 12x16 The following gravity loads are applied to floors in addition to components self-weight: All floor dead loads are 20 psf All floor live loads except roof and stair room roof are 80 psf Roof and stair room roof live loads are 20 psf The mechanical equipment (A/C. compressors, etc.) placed on top of stair room roof is 50 psf Columns of any floor are the ones which support that particular floor Total service load: DL+LL Total ultimate load: 1.2DL+1.6LL Self-weight of structural components must be included Note: O Type here to search 무 1/20/2019归|ーHW-1 2019.pdf 1 %2020 19.pdf Questions Q1 - What is the tributary area of the girder between D3 and D4 gridlines on 3rd floor? Q2 - What is the tributary area of the column at H1 of 4th floor? Q3- What is the tributary area of the column at A1 of 1st floor? Q4 -What is the tributary area of the column at C4 of roof? Q5 - What is the tributary area of the column at E4 of roof? Q6 - What is the tributary area of the wall between J3 and J4 gridlines on 2nd floor? Q7 - Calculate the total service and total ultimate loads (plf) of the girder in Q1. Q8- Calculate the total service and total ultimate axial loads (kip) of columns in Q2 to Q6. a9 - What is the total self-weight (kip) of the structure? 010 - What is the total ultimate weight (kip) of structure (self-weight and applied loads)? O Type here to search R aa624 PM 1/20/2019 무

Hello I Just need help in figuring out how to do questions 6-8.

In the pictures i provided there are dimension located in the First picture uploaded and also in the 5th Picture.

If you can explain your process it would be greatly appreciated.  

My answer for question 1-5 are = 1) 576 ft^2 , 2) 288 ft^2 , 3) 144 ft^2 , 4) 576 ft^2 , 5) 576 ft^2

If any of my answers are wrong please explain to me how to fix my answers. Thank you in advance.

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