Rd
Torsional force resisted by each vertical element = FT = T
∑ Rd
2
Transverse Forces:
Center of Mass in X direction =
6.25
ft.
Center of Rigidity in X direction =
8.14
ft.
Actual Eccentricity in X direction =
1.89
ft.
Perpendicular Span in X direction =
10
ft.
Accidental Eccentricity (5% of Span) =
0.5
ft.
Design Eccentricity in X direction =
2.39
ft. (0.73m)
Seismic Force Tributary to each Sacristy =
5.3
kips (23.6 KN)
Torsional Force (V * e) =
12.70
kip*ft (17.2 KNm)
Rd2
Element
R
d
Rd
Torsional
Force
(kip)
Wall 7A-7C
5000
8.14
40697
331243
0.68
Wall 8
21872
-1.86
-40697
75723
-0.68*
Wall A7-A8
2448
7.32
17912
131061
0.30
Wall C7-C8
1450
12.35
17912
221267
0.30
Σ=
759294
*Note: Negative torsional force contributions are neglected.
Longitudinal Forces:
Center of Mass in Y direction =
7.98 ft.
Center of Rigidity in Y direction =
12.35 ft.
Actual Eccentricity in Y direction =
4.38 ft.
Perpendicular Span in Y direction =
19.67 ft.
Accidental Eccentricity (5% of Span) =
0.9835 ft.
Design Eccentricity in Y direction =
5.36 ft. (1.63m)
Seismic Force Tributary to each Sacristy =
5.3 kips (23.6 KN)
Torsional Force (V * e) =
28.52 kip*ft (38.7 KNm)
Rd2
Element
R
d
Rd
Torsional Force
(kip)
Wall 7A-7C
5000
8.14
40697
331243
1.529
Wall 8
21872
1.86
40697
75723
1.529
Wall A7-A8
2448
-7.32
-17912
131061
-0.673*
Wall C7-C8
1450
12.35
17912
221267
0.673
Σ=
759294
*Note: Negative torsional force contributions are neglected.
H3-35
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