# EPA Calculation

#### Description

Design Wind Force Calculation Design Wind Speed Height above Ground Level, z Exposure Category Velocity Pressure coefficient, Kz Structure Class Topographic Category Crest height , H Topographic Factor, Kzt Directionality Factor, Kd Importance Factor Velocity Pressure, qz EPA Calculation of Tubular Pole

160 26 C 1.22 II 1 0 1.00 0.85 1 1.26

Gust Effect Factor Structure Height Pole Outside diameter, D C value Force Coefficient, Cf Area of Pole, Ap EPA Design Wind Force, Fst

0.85 6 0.088 4.33 1.20 0.528 0.63 0.68

m2 m2 kN

Design Wind Force/m run

0.11

KN/m

GSM 2G 0

Deg

2.45 0.37 0.106

m m m

1 6.62 23.11 1.38 1.94 1.25 0.50 1.254 1.34

m2 m2 m2 KN

EPA Calculation of Appurtances (Flat Panel) Antenna Name Wind Angle Antenna Dimensions Length ,L Width, w Depth, d EPA Calculation Ka Aspect Ratio, (L/w) Aspect Ratio, (L/d) (Ca)n (Ca)t (EPA)n (EPA)t (EPA)a Design Wind Force, Fa EPA Calculation of Microwave Antennas Antenna Name

MW0.6

KPh m

m

Kpa

m m

Outside Diameter of Microwave Area of Aperture, A Wind Angle Ca Cs Cm Design Wind Force FAM

0.675 0.358 0 1.5508 0 0

m m2 Deg * Input Ca, Cs and Cm based on type of Antenna and wind angle From Table C1 -C4, TIA 222G

0.59

kN

FSM

0

kN

MM

0

KNm

0 1 30 18 3 6 30 30 0.648 0.33 0.15 0.33 0.33 0.35

Deg

EPA Calculation of Feeder Cables Wind Angle Ka Cable Diameter Total No Cables No of Rows Cables/ row Clear spacing between cables Clear spacing between rows EPA considering Individual lines/m run (EPA)n considering Equ. Rect Appurtenance/m run (EPA)t considering Equ. Rect Appurtenance/m run (EPA)a EPA Cables Design Wind force/m run, Fs

mm

mm mm m2 m2 m2

KN/m

Exposure Category B C D

Zg 366 274 213

α 7 9.5 11.5

Kzmin 0.7 0.85 1.03

Ke 0.9 1 1.1

Topographic Category 1 2 3 4

Kt

f

Kh

0.43 0.53 0.72

1.25 2 1.5

#DIV/0! #DIV/0! #DIV/0!

Kzt 1 #DIV/0! #DIV/0! #DIV/0!

Structure Class

Importance Factor Wind 0.87 1 1.15

I II III 1.2

d on type of Antenna

le C1 -C4, TIA 222G

1.224262 1.224262 1.224262

Design of Tubular Pole structures Subjected to Axial, Moment, Shear and Torsion Input Loads Factored Axial Load, Pu Factored Moment, Mu Factored Shear, Vu Factored Torsion, Tu Properties of Section Outer Diameter of Pole, D Thickness, t Inner Diameter, d Modulus of Elasticity, E Yield Strength, Fy Area, A Elastic Section modulus, S Plastic Section modulus, Z Polar Moment of Inertia, J Calculation for Compressive Strength D/t Effective yield strength Compressive Strength, Pn

19 16 20 2

KN KNm KN KNm

42 5 32 2.00E+05 275 580.9 4822.53 6886.67 202546.3324

mm mm MPa Mpa mm2 mm3 mm3

8.40 275.00 135.79

Mpa kN

Calculation for Flexural Strength Moment Strength, Mn

1.70

kNm

Calculation for Shear Strength Shear Strength, Vn

71.89

KN

Calculation for Torsional Strength Torsional Strength, Tn

2.39

KNm

10.64

Unsafe

Check For Interaction

Design of Tubular leg members subjected to compression for latticed structures Input Data Factored Axial Compression Unsupported Length Properties of Section Outer Diameter of Pole, D Thickness, t Inner Diameter, d Modulus of Elasticity, E Yield Strength, Fy Calculation Area, A D/t Effective yield strength K Moment of Inertia, I Radius of Gyration, r Slenderness ratio, KL/r λc Fcr Allowable Compressive Strength Ratio

200 400

kN mm

42 5 32 200000 275

mm mm mm Mpa Mpa

581.19 8.4 275.00 1 101273.17 13.20 30.30 0.36 260.66 128.77 1.55

mm2 Mpa mm4 mm

Mpa kN Unsafe, Revise section

Design of Tubular members subjected to axial compression and bending forces for Latticed Structures Input Data Factored Axial Compression Factored Moment Unsupported Length Member Type P-Delta Effects Considered Properties of Section Outer Diameter of Pole, D Thickness, t Inner Diameter, d Modulus of Elasticity, E Yield Strength, Fy Elastic Section modulus, S Plastic Section modulus, Z Moment of Inertia, I Radius of Gyration, r Calculation Area, A D/t Effective yield strength K Slenderness ratio, KL/r λc Fcr Allowable Compressive Strength Allowable Moment Strength Check for Interaction Pu/φPn B1 Amplified Factored Moment, Mu Interaction

100 0.1 200 Leg No

kN KNm mm

42 5 32 200000 248 4822.53 6886.67 101273.17 13.20

mm mm mm Mpa Mpa mm3 mm3 mm4 mm

581.19 8.40 248.00 1 15.15 0.17 245.02 121.05 1.54

mm2

0.83 0.87 0.09 0.78

Mpa * Input K value from Table 4.3 to Table 4.5 based on Member type and End conditions.

Mpa kN kNm

Safe

Minimum Bracing Resistance Check Unsupported Length K value radius of gyration Axial Design compressive force in supported member Slenderness ratio, KL/r Minimum Bracing resistance, Ps

515 0.7 3

mm

100

KN

120.17 2.50

kN

mm

2.50