Environmental Engineering Reference
In-Depth Information
Fig. 4.46 Detail of junction between prestressed concrete tower and tubular steel segment
b) Prestressed concrete tower (cylindrical shell):
Characteristic values of statically indeterminate bending action effects: X
1
;X
2
c) Circular ring beam:
Resultant characteristic values: m
R
;n
R
;v
R
4.10.3 Characteristic values for loads
The characteristic values of the actions on the circular ring beam (m
R
;n
R
;v
R
) are
calculated from the characteristic values of the tower internal forces (see above) -
separately for symmetrical effects (due to permanent loads and prestress) and antisym-
metrical effects (due to wind loads) (Figure 4.48). For simplicity, the symmetrical
components of the imposed loads are added to the permanent loads (G
k
) and the
antisymmetrical components added to the wind loads (Q
Wk
).
