C 1

Sample C1 column design line spreadsheets will be introduced in this section.

Düşey olarak çakışan kolonların aynı isimle anıldığı ve tasarımının yapıldığı kısımdır.

Figure 1

Tributary analysis results of C1 column design line are available in tributary forces spreadsheet.

Click “Spreadsheet Data” then click “Tributary Forces” as shown in Figure 1.

Tributary analysis results are reported per load class and load combination.

Load Classes and load cases used in numerical example are as follows;

Figure 1

Figure 2

Load Take Down Calculations

Cumulative tributary forces of C1 column design line is shown in Figure 3.

Figure 3

Tributary area of C1 column is the same in all floor plans and equal to 95.83 sq ft as shown in Figure 4.

Figure 4

Self Weight

Slab dead load at each floor is calculated by simply multiplying the thickness of the slab and tributary area of the slab and unit weight of slab material. Since the tributary areas at each floor is the same, only one floor calculation is shown as an example.

→ (8/12)*95.83*150/1000=9.583 kips

Column dead load at each floor is also calculated by simply multiplying the section area of column and height of the column and unit weight column material. Since the column section and floor height at each floor is the same, only one column dead load calculation is shown as an example.

→ (24*14/144)*10*150=3.5 kips

Self weight is the cumulative sum of slab dead load and column dead load.

→ 9.58+3.5 =13.08 kips

→ 13.08+(13.08+3.5)= 26.17 kips

→ 26.17 + (13.08+3.5)= 39.25 kips

→ 39.25 + (13.08+3.5)= 52.33 kips

Superimposed Dead Load

Superimposed Dead Load is grouped as “SDL” in Load Classes section. So all the load cases which are classified as “Superimposed Dead Load” within the boundaries of tributary area of C1 will be included to calculation. Notice that results are reported cumulatively.

Figure 5

Figure 6

The loadings of Roof which are classified as Superimposed DL (LG2, LG3) are shown in Figure 5 and Figure 6.

Figure 7

Figure 8

The loadings of 3rd Floor which are classified as Superimposed DL (LG2, LG3) are shown in Figure 7 and Figure 8.

Figure 9

Figure 10

Figure 11

The loadings of 2nd Floor which are classified as Superimposed DL (LG1, LG3,LG4) are shown in Figure 9 Figure 10 and Figure 11.

Figure 12

Figure 13

The loadings of 1st Floor which are classified as Superimposed DL (LG1, LG3) are shown in Figure 12 Figure and 13.

The cumulative tributary forces of Superimposed DL is calculated as follows;

→Roof tributary force = 0.4*11.5+95.83*15/1000 =6.04 kips

Figure 14

→ 3rd floor tributary force = 6.04+0.3*11.5+95.83*15/1000=10.93 kips

→ 2nd floor tributary force = 10.93+0.3*11.5+95.83*15/1000+10*(21.055/82.08)=18.38 kips

Figure 15

Figure 16

→ 1st floor tributary force = 18.38 + 0.3*11.5+95.83*15/1000=23.27 kips