EGN-5439 The Design of Tall Buildings

ETABS Tutorial 2

Define the Static Load CasesDefine the Static Load Cases

Create the Wind Load CasesCreate the Wind Load Cases

Create Rigid DiaphragmsCreate Rigid Diaphragms

•• Select all, then assign shell rigid diaphragm.Select all, then assign shell rigid diaphragm.

ASCE 7ASCE 7--98 Code Combinations98 Code CombinationsCase # X Y MX MY

1 1 1

2 -1

3 1

4 -1

2 1 0.875 0.25

2 0.875 -0.25

3 -0.875 0.25

4 -0.875 -0.25

5 0.875 0.25

6 0.875 -0.25

7 -0.875 0.25

8 -0.875 -0.25

3 1 0.75 0.75

2 -0.75 0.75

3 0.75 -0.75

4 -0.75 -0.75

4 1 0.655 0.655 0.19 0.19

2 0.655 0.655 -0.19 0.19

3 0.655 0.655 0.19 -0.19

4 0.655 0.655 -0.19 -0.19

5 0.655 -0.655 0.19 0.19

6 0.655 -0.655 -0.19 0.19

7 0.655 -0.655 0.19 -0.19

8 0.655 -0.655 -0.19 -0.19

9 -0.655 0.655 0.19 0.19

10 -0.655 0.655 -0.19 0.19

11 -0.655 0.655 0.19 -0.19

12 -0.655 0.655 -0.19 -0.19

13 -0.655 -0.655 0.19 0.19

14 -0.655 -0.655 -0.19 0.19

15 -0.655 -0.655 0.19 -0.19

16 -0.655 -0.655 -0.19 -0.19

•• 1.2DL + 1.6LL1.2DL + 1.6LL

•• 1.2DL + 0.8W1.2DL + 0.8W

•• 1.2DL + 1.6W + 0.5L1.2DL + 1.6W + 0.5L

ASCE 7ASCE 7--02 Code Combinations02 Code Combinations

•• 1.2DL + 1.6LL1.2DL + 1.6LL

•• 1.2DL + 0.8W1.2DL + 0.8W

•• 1.2DL + 1.6W + 0.5L1.2DL + 1.6W + 0.5L

Apply Loading to Diaphragm Apply Loading to Diaphragm