Reference calculation with wind speed of 75 m/s - DKF100-EXEL - DKE100

DKF100-EXEL Installation Guide

Document code
M211818EN
Revision
C
Language
English (United States)
Product
DKF100-EXEL
DKE100
Document type
User guide

The reference calculation in this example is based on the following criteria:

  • Gust wind speed of 75 m/s at the top of the mast
  • 10‑meter mast with 2 sets of guy wires
Figure 1. Example 1: Mast assembly in reference wind load calculation
Table 1. Example 1: Wind load calculation for mast concrete foundation
Parameters Description Example 1: Maximum vertical load Example 2: Maximum overturning moment
Nd Normal force −14.3 kN (down) −5.0 kN (down)
Qd Shear force 0.9 kN 3.1 kN
Md Overturning moment 0.9 kNm 3.1 kNm
Table 2. Example 1: Wind load calculation for guy wire concrete foundation
Parameters Description Example 1: Maximum guy wire tension
Nk Normal force 6.4 kN (up)
Qk Shear force 4.7 kN
Mk Moment 0 kNm
Table 3. Example 1: Mast calculation weights
Part Weight
Mast

35 kg (77.2 lb)

Enclosure with weather station electronics 40 kg (88.2 lb)
Support arm 5 kg (11.0 lb)
Solar panel 3.5 kg (7.7 lb)
Antenna 1 kg (2.2 lb)
Obstruction light 2 kg (4.4 lb)
Lightning protection (air terminal) 2 kg (4.4 lb)
Sensor 2 kg (4.4 lb)
Table 4. Example 1: Mast calculation concrete values
Description Value
Concrete volume 0.45 m3
Concrete weight 11.3 kN
Net pressure of soil ≥ 70 kN/m2
Groundwater No