User Information
Load-bearing tower Staxo 100
Structural design
85
999804302 - 02/2018
Structural design
Preconditions for use
▪
Working wind of 0.2
kN/m
2
(64.4
km/h) is considered
▪
Separate proof must be provided, by a suitably
skilled person, regarding the foundation. Particular
attention must be paid here to the ground-bearing
pressure!
▪
Intermediate anchoring planes may be necessary
while the towers are being erected.
▪
The calculated values are in line with the 'Type test
for Staxo 100' and thus also with EN
12812 and
EN
1993.
▪
In all cases which differ from the stated boundary
conditions, the type-test must be used as the basis
for the dimensioning calculation, to ensure adequate
stability.
Such deviations may be due to:
- variations in height
- different wind loads
- different inter-frame spacings
- additional horizontal loads
- single legs
- larger screw-jack extension lengths
- inclined load-bearing tower
▪
On multi-plane towers with different inter-frame
spaces, it is always the smallest inter-frame space
that determines the design load.
Inclination adjustment
▪
Inclination adjusted with a centering strip (e.g. hexa-
gon bolt M20x230) or Swivel bearing plate for Screw
jack U-head = Screw-jack U-head not restrained.
▪
Inclination adjusted with a wooden wedge or 'Com-
pensating plate' = no effect on the restraint situation.
- e.g. with Wedge for screw jack U-head or Staxo
wedge support
Founding with the 'Compensating plate'
Ranges of use for top-held systems
Ranges of use for free-standing systems
For each 1% angle of inclination, increase the minimum
imposed loads by +10% (max. +160%).
This fulfils the local proof against slippage between the
Compensating plate and the concrete (μ
k
=
0.33).
Set-up configurations
Superstructure configuration
Max. influence width of the secondary beams for the superstructure:
50 cm
NOTICE
▪
The 'Compensating plate' must be placed
on concrete only.
▪
For the proof against slippage between the
Compensating plate and the concrete, a
friction coefficient of 0.33 must be assumed.
Height of load-bearing tower
Dynamic pressure
h ≤ 15 m
q
k
≤ 1.3 kN/m
2
15 m < h ≤ 21 m
q
k
≤ 0.8 kN/m
2
As tower
Number of frame planes = 2
With multiple towerframe-planes
Number of frame planes ≥ 3
Top-held systems
Free-standing systems
Head units restrained
Double primary beams H20 or
Single primary beam I tec 20
Multipurpose walings
Head units not restrained
Swivel bearing plate
for Screw-jack U-head
Single primary beam H20
Superstructure with
spindle struts
9661-232-01
98003-304-01
98003-305-01
98024-226-01
98003-328-01
98003-329-01
98024-227-01
98003-330-01