ZND090-AMT-Td-0001 Rev. A
FAST PLANETS Co LTD., ENGINEERING DEPARTMENT P.0. BOX : 34620 RIYADH - 11478
ANALYSIS / COMPARATIVE STUDY OF EXISTING 25+4.0m Extended Latticed MONOPOLE TOWER (LTE Project 2011)
Main Site No.:
ZND090
ORIGINAL DESIGN LOAD + EXISTING & PROPOSED LOADING CONDITION
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
TABLE OF CONTENTS TITLE
PAGE NO.
COVER PAGE
1
TABLE OF CONTENTS
2
INTRODUCTION
3
CONCLUSION
3
TOWER COMPARATIVE STUDY
4
TABLE I - WIND LOAD ON ANTENNA SUPPORT PIPE AND OTHER MOUNTED POLE STRUCTURE
6
TABLE II - STANDARD 25m SELF-SUPPORT MONOPOLE WIND LOAD
7
TOWER DEFLECTION
8
TOWER INFORMATION
9
ATTACHMENT ORIGINAL TOWER LOAD DESIGN CALCULATION TOWER PROFILE
Analyzed by:
J.B.Vasquez Telecom Engineer
Checked by:
Approved by:
J.A.Hasson Structural Engineer
A.A.Aleem Projects Manager
L'
Page 2 of 11
LTE Project 2011
Main Site No.
ZND090-AMT-Td-0001 Rev.A
ZND090
INTRODUCTION Tower load comparative study for main site no. ZND090 was performed to compare the design load against the actual load to determine its feasibility to support the existing and the proposed new antenna loading to be used for LTE Project 2011. Refer to pages 4 to 7 for the detailed comparative study of the tower original design loading and actual loading. Tower existing loading condition and proposed new antennas and tower physical condition and other relevant information are tabulated on pages 9 to 11. For information on tower mast geometry and member sizes, see attachment.
CONCLUSION The results show that the tower meet the criteria of 39 m/s (140KPH) basic wind speed. The original design load of the tower is greater than the present actual load and it is indicative that there is no increase in antenna loads. Hence, we can conclude that the tower can safely support the existing and the proposed microwave antenna loading for LTE Project 2011 .
Page 3 of 11
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
Comparison between original design loads and actual loads for standard 25.0m Monopole tower
Tower height = Gh =
25 m 1.690
Original Design Loads Wind speed =
39 m/s
Design Loads
Size
Dept
Qty, n
(m)
Elevation
Kz
(m)
Fa
Fa*Gh*Kz*n
Base Moment
(kN)
(kN)
(kN-m)
PANEL
900 MHZ
GSM
9
25.0
1.299
0.89
17.51
437.64
HP
1.20 DIA
MW
2
25.0
1.299
1.39
6.10
152.57
HP
2.40 DIA
MW
1
25.0
1.299
5.56
12.21
305.15
Tubular Poles 1
25.0 m high
GSM
LS
N/A 4
1.000
N/A 4
N/A 4
4636.41
Mounted Poles 2
2.0 m high
GSM
LS
N/A 4
1.000
N/A 4
N/A 4
2.86
Cantilevered Lattice 3
4.0 m high
GSM
LS
N/A 4
1.000
N/A 4
N/A 4
137.89
Total Base Moment =
1 25.0m high Monopole Tubular Pole 2 2.0 m high Mounted Pole 3 4.0m high Cantileverd Lattice 4 Previously gusted (i.e. K Z and Gh equal to 1.0), see Tables I, II & III
Page 4 of 11
5672.52
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
Actual Loads Wind speed = Actual Loads LR PANEL HP PANEL HP PANEL 3G HP HP HP HP HP NEW LTE 1 Tubular Poles Mounted Poles Cantilevered Lattice
35 m/s
GH = 1.69 Qty, n Elevation (m)
Size (m)
Dept
0.20 Ø x 2.0m
GSM
1
900 MHZ 0.30 DIA. 1800 MHZ 0.30 DIA. 900 MHZ 2100 MHZ 0.30 DIA. 0.60 DIA. 0.30 DIA. 0.30 DIA. 0.30 DIA.
GSM
3
Kz
Fa (kN)
Fa*Gh*Kz*n Base Moment (kN) (kN-m)
30 29 28 26 24 25 25 24 23 23 22.5 23
1.3687 1.3555 1.3420 1.3139 1.2842 1.2992 1.2992 1.2842 1.2687 1.2687 1.2607 1.2687
0.016
0.04
1.08
0.713
4.90
142.10
0.120
1.09
30.48
0.534
1.19
30.83
0.120
0.26
6.25
0.713
1.57
39.14
0.538
1.18
29.53
0.120
0.26
6.25
0.350
0.75
17.26
0.26 0.51 0.26 3.58
5.92 11.51 5.92 93.18
3734.14 2.26 111.26
MW
4
GSM
1
MW
1
GSM
1
GSM
1
MW
1
MW
1
MW MW MW GSM
1 2 1 3
26.00
1.314
0.120 0.120 0.120 0.538
25.0m high
GSM
LS
N/A 2
1.000
N/A 2
N/A 2
2.0M high
GSM
LS
N/A 2
1.000
N/A 2
N/A 2
4.0m high
GSM
LS
N/A 2
1.000
N/A 2
N/A 2
Total Base Moment = % Comparison of original design loads versus actual loads = 1
New GSM antenna
2
Previously gusted (i.e. K Z and Gh equal to 1.0), see Tables I & II
4267.11 0.7522
Conclusion : Since there is no increase in antenna loads, therefore the tower can safely support the existing plus the proposed new loading.
Page 5 of 11
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
Table I - Wind load on antenna support pipe and other mounted pole & latticed structures. Tower ht. = Wind speed = Gh1 = Actual Loads
LR
1
25 m 39 m/s 1.00
1.5625
Size
Dept
20ømmx2.0m
GSM
Sec.2.3.4.1 of TIA-EIA-222-F
Length, l Diameter, d Appurtenance (mm)
(mm)
c/l Elev., (m)
2000
20.0
29.80
Kz
1.366
Pressure qz (kPa)
C
1.274
0.912
CF
Force, Fc
(C<4.40)
(kN/m)
1.200
0.048
CF
Force, Fc
(C<4.40)
(kN/m)
1.200
0.038
multiplied by 1.25, to compensate for the greater gust response for mounted pole structure (EIA/TIA-222-E, Sec. 2.3.4.4)
Table I - Wind load on antenna support pipe and other mounted pole structures. Tower ht. = Wind speed = Gh1 = Actual Loads
LR
1
25 m 35 m/s 1.5625
Size
20ømmx2.0m
1.00
Dept
GSM
Sec.2.3.4.1 of TIA-EIA-222-F
Length, l Diameter, dAppurtenance (mm)
(mm)
c/l Elev., (m)
2000
20.0
29.80
Kz
1.365
Pressure qz (kPa)
C
1.025
0.818
multiplied by 1.25, to compensate for the greater gust response for mounted pole structure (EIA/TIA-222-E, Sec. 2.3.4.4)
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A Total Base Moment =
Page 7 of 11
1042.59
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
TABLE II - 25.0M SELF-SUPPORTING MONOPOLE TOWER Typical tower wind load distribution as per section in normal to the tower face. H= V= GH =
SECTION 1 2 3
AG(sq.m.) 9.567 10.719 9.121
25
m
Heightof Monopole
39
m/s
Basic Design Wind speed for the structure Gust Response of Monopole as per Section 2.3.4.2 of TIA-EIA_222-F
1.69
AR(sq.m.) 9.854 11.041 9.395
H*CF*AR(kNs) GH*qZ*AF=qz*G G zequivalent(m) OTM(kN-m) 18456.99 130.95 20.482 2682.12 17668.57 140.46 11.520 1618.10 14372.05 97.22 3.458 336.187
Total =
4636.41
kN-m
TABLE II - 25.0M SELF-SUPPORTING MONOPOLE TOWER Typical tower wind load distribution as per section in normal to the tower face. H= V= GH =
SECTION 1 2 3
AG(sq.m.) 9.567 10.719 9.121
25
m
Heightof Monopole
35
m/s
Basic Design Wind speed for the structure
1.69
AR(sq.m.) 9.854 11.041 9.395
Gust Response of Monopole as per Section 2.3.4.2 of TIA-EIA_222-F H*CF*AR(kNs) GH*qZ*AF=qz*G G zequivalent(m) OTM(kN-m) 14865.10 105.47 20.482 2160.24 14230.11 113.12 11.520 1303.14 11575.13 78.30 3.458 270.761
Total =
3734.14
kN-m
MT-Td-0001 Rev.A
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
TOWER DEFLECTION As per original design loads:
ELEV.
45 m/s WIND SPEED
33 m/s WIND SPEED
(m)
DEFLECTION (mm)
ROTATION (deg)
DEFLECTION (mm)
ROTATION (deg)
ALLOW. TILT/SWAY (deg)
36.00
79.70
0.24
44.00
0.13
0.50
The above shown tower deflection is based on the original design loads (attached); considering that the existing + proposed antenna loads are less than the original design loads, thus actual tower deflection will be lesser than the deflection due to original design loads.
Page 8 of 11
Page 8 of 11
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
TOWER SITE INFORMATION The following two tables include existing tower loading, proposed loading, physical condition of the steel tower and foundation and other relevant information.
Page 9 of 11
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
Site Survey Report - Tower Antenna Loads Date: 22/05/2009 Site 306-00-000 ANTENNA LOADING DATA No.
TYPE
SIZE
ELEV.
AZIM.
(meter)
(meter)
(deg.)
FEEDLINES/ LADDER DATA F/L
QTY
SIZE
TYPE
REMARKS
(mm)
NOTES:
ANTENNA DATA: No. Assign a number to each antenna, starting at top of tower and working down. TYPE Paraboloid (Dish): S- Solid, G- Grid, HP- High Performance (Flat Shielded), R- with Radome T.V.- UHF, BC- Broadcast, Y- Yagi, D- Directional (cellular), O- Omnidirectional, P- Paging Reflectors: CHR- Conical Horn Reflector, FPR- Flat Plate Passive Reflectors. G.S.M.: A- ALLGON, ADC- ADC Dual Polarized. MISC.: S/S- Self Supporting Tower, G/T- Guyed Tower, P/M- Pole Mount. SIZE: Indicate diameter in meters for parabolic (microwave dishes), size for other types. ELEV. Height above ground in meters (Elevation). AZIM. Azimuth: Show antenna orientation in degrees or compass reading (N, NE, E,SE, S, etc.). F/L Indicate antenna mount: Face (F) or leg (L). REMARKS Existing or proposed new antenna(s) designation. FEEDLINES/ LADDER DATA QTY:
COMMENTS
Quantity.
SIZE: Diameter or size in (mm). TYPE: W- Waveguide, C- Coax, H- Heliax, L- Ladder.
Page 10 of 11
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
Site Survey Report - Tower Antenna Loads Date: 22/05/2009 Site 306-00-000 ANTENNA LOADING DATA No.
TYPE
SIZE
ELEV.
AZIM.
(meter)
(meter)
(deg.)
FEEDLINES/ LADDER DATA F/L
QTY
SIZE
TYPE
REMARKS
(mm)
NOTES:
ANTENNA DATA: No. Assign a number to each antenna, starting at top of tower and working down. TYPE Paraboloid (Dish): S- Solid, G- Grid, HP- High Performance (Flat Shielded), R- with Radome T.V.- UHF, BC- Broadcast, Y- Yagi, D- Directional (cellular), O- Omnidirectional, P- Paging Reflectors: CHR- Conical Horn Reflector, FPR- Flat Plate Passive Reflectors. G.S.M.: A- ALLGON, ADC- ADC Dual Polarized. MISC.: S/S- Self Supporting Tower, G/T- Guyed Tower, P/M- Pole Mount. SIZE: Indicate diameter in meters for parabolic (microwave dishes), size for other types. ELEV. Height above ground in meters (Elevation). AZIM. Azimuth: Show antenna orientation in degrees or compass reading (N, NE, E,SE, S, etc.). F/L Indicate antenna mount: Face (F) or leg (L). REMARKS Existing or proposed new antenna(s) designation. FEEDLINES/ LADDER DATA QTY:
COMMENTS
Quantity.
SIZE: Diameter or size in (mm). TYPE: W- Waveguide, C- Coax, H- Heliax, L- Ladder.
Page 10A of 11
LTE Project 2011
ZND090-AMT-Td-0001 Rev.A
TOWER INSPECTION CHECKLIST Existing Tower Tower Manufacturer
Light
x Medium Al Babtain Le Blanc
Heavy Model
None 36.0 M
Tower Base outside width 6.70 m Tower Type Tower Cross-Section Tower Members 25 dia. mm x Self Supporting Triangular Tubular Angle Solid Rd Anchor Bolt Size BasePlate Thickness 4.0 cm Guyed Mast x Rectangular Legs x BasePlate dimensions 40x40 cm Monopole Diagonals x Struts x Tower Conditions: Guy Wires Structural x Good, no visible rust or kinks, straight members Yes No Average, some surface rust, no other damage x Ladder Exists Below Average, rusty, needs maintenance x Enclosed Ladder Poor, severe rust, bent/ missing members, bolts or strands x Painted Red/White, No. of bands 7 Loose or corroded bolts or anchor bolts or Guy Hardware Sagging Guy wires, Tower Out of Plumbness or Twisted Foundation Type Condition Cement Grout Piers x Good, no visible cracks or damage x Good x Raft Average, edges rough, no cracks, edge wear Fair Piles Below Average, surface cracks, edge wear Poor, missing Roof Mount Poor cracks, spalding, deteriorating Others Guy Anchor Size N/A . x Pedestal Size 70 x 70 cm Distance from tower to anchor block N/A Comments :
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