615709-01_tower_design.pdf

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FURNISH AND INSTALL COMMUNICATIONS TOWER AT 358 SOUTH MAIN STREET
Solicitation number
24/25-25
Issued by
Hartford County, Connecticut

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Written by GovTribe AI ·

This document is a preliminary self-supporting tower design created by Valmont Industries, Inc. for the Manchester Police Department in Connecticut, specifically for a communications tower to be installed at 358 South Main Street. The design is for a 180-foot tall, H-22' self-supporting telecommunications tower designed to meet TIA-222-H standards, located in Hartford County, with a tower risk category of III. The tower is engineered for a 130 mph basic wind speed per the 2022 Connecticut State Building Code, with additional design considerations for a 50 mph wind with 1.50 inches of ice, and includes features such as a 12-line waveguide ladder and built-in climbing facility.

The tower design specifies detailed technical specifications including material strengths (A572-50 and A572-58 grades), leg configurations, diagonal measurements, and appurtenance loading at various elevations. The design includes specific equipment mounting points for lightning rods and other telecommunications infrastructure, with a shielding factor of 0.8 applied to all EPA loading. Maximum corner reactions at the base are documented, with reactions for both 130 mph wind and 50 mph wind with ice scenarios. The tower has been rated at 95.9% efficiency and is prepared for potential installation as part of the Town of Manchester's communications infrastructure project.

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Valmont Industries, Inc.- Global Telecom

1545 Pidco Drive

Plymouth, IN Phone: (574) 936-4221

FAX: (574) 936-6458

Job:

Quote 615709-01

Project: H-22' x 180' - Manchester Police Department, CT Client: Manchester Police Drawn by: NTD App'd:

Code: TIA-222-H Date: 04/22/24 Scale: NTS Path:

Y:\615\615709 Manchester Police DP, 180' SST\00 Quote Information\615709-01.eri Dwg No. E-1

180.0 ft

160.0 ft

140.0 ft

120.0 ft

100.0 ft

80.0 ft

60.0 ft

40.0 ft

20.0 ft

0.0 ft

REACTIONS - 130 mph WIND

TORQUE 36 kip-ft

58 K

SHEAR

6130 kip-ft

MOMENT

48 K

AXIAL

50 mph WIND - 1.5000 in ICE

TORQUE 12 kip-ft

16 K

SHEAR

1810 kip-ft

MOMENT

137 K

AXIAL

SHEAR: 34 K

UPLIFT: -301 K

SHEAR: 37 K

DOWN: 338 K

MAX. CORNER REACTIONS AT BASE:

ARE FACTORED

ALL REACTIONS

S e c ti o n T

T

T

T

T

T

T

T

T

L g s A

B C

D E

F G

H I

L g

G ra d e

A

-5

A

-5

D ia g o n a ls

L x x

/8 L x x

/1

L

/2 x

/2 x

/1

L x x

/1

L x x

/4 L x x

/1

L

/2 x

/2 x

/4

D ia g o n a l G ra d e A

-5

T o p

G ir ts L x x

/4 N

.A

F a c e

W id th ft

P a n e ls ft

.6

W ig h t (K

.7

.1

.4

.6

.1

.3

.5

.9

.8

.2

20ft lightning rod 180 SC34A-SF3LDF 179 SC34A-SF3LDF 179 SC34A-SF3LDF 179 SP1 HS4-K 177 SP1 HS4-K 177 SP1 HS4-K 177 30,000 sq.in. (208.3 sq.ft. EPA) 170 SP1 R5 (Includes 4.5"x72" Pipe) 140 SP1 R5 (Includes 4.5"x72" Pipe) 140 2' HP 140 2' HP 140 30,000 sq.in. (208.3 sq.ft. EPA) 130 30,000 sq.in. (208.3 sq.ft. EPA) 120 30,000 sq.in. (208.3 sq.ft. EPA) 110DESIGNED APPURTENANCE LOADING

TYPE TYPEELEVATION ELEVATION

20ft lightning rod 180

SC34A-SF3LDF 179

SC34A-SF3LDF 179

SC34A-SF3LDF 179

SP1 HS4-K 177

SP1 HS4-K 177

SP1 HS4-K 177

30,000 sq.in. (208.3 sq.ft. EPA) 170

SP1 R5 (Includes 4.5"x72" Pipe) 140

SP1 R5 (Includes 4.5"x72" Pipe) 140

2' HP 140

2' HP 140

30,000 sq.in. (208.3 sq.ft. EPA) 130

30,000 sq.in. (208.3 sq.ft. EPA) 120

30,000 sq.in. (208.3 sq.ft. EPA) 110

SYMBOL LIST

MARK MARKSIZE SIZE

A 0049) 2.50" S - 20' - C - 0.75" conn - (Pirod 226160)

B 0195) 3.50 to 5" S - 20' - C - 0.75" conn - (Pirod 295564)

C 0375) 5.00" to 4" S - 20' - C - 0.75" conn - (Pirod 226200)

D 0367) 5.00" S - 20' - C - 0.75" conn - (Pirod 226192)

E 0411) 6.00" S - 20' - C - 0.75" conn - (Pirod 226206)

F 0419) 6.00" to #12 S - 20' - C - 0.75" conn - (Pirod 229377)

G #12ZG-58 - 1.75" - 1.00" conn.-TR1-(Pirod 195213)

H #12ZG-58 - 1.75" - 1.00" conn. (Pirod 195217)

I #12ZG-58 BASE - 1.75" - 1.00" conn.(Pirod 281212)

MATERIAL STRENGTH

GRADE GRADEFy FyFu Fu

A572-50 50 ksi 65 ksi A572-58 58 ksi 75 ksi

TOWER DESIGN NOTES

1. Tower is located in Hartford County, Connecticut.

2. Tower designed for Exposure B to the TIA-222-H Standard.

3. Tower designed for a 130 mph basic wind in accordance with the TIA-222-H Standard.

4. Tower is also designed for a 50 mph basic wind with 1.50 in ice. Ice is considered to increase in thickness with height.

5. Deflections are based upon a 60 mph wind.

6. Tower Risk Category III.

7. Topographic Category 1 with Crest Height of 0.00 ft

8. Outside climbing ladder not included. Tower sections designed to act as climbing facility.

9. Design includes one 12-line waveguide ladder.

10. Shielding factor (Ka) of 0.8 applied to all EPA loading.

11. 130 mph wind speed used per 2022 CT State Building Code.

12. TOWER RATING: 95.9%

Valmont Industries, Inc.

1545 Pidco Dr. | Plymouth, IN 46563

1-574-936-4221 | www.valmont.com

PRELIMINARY SELF-SUPPORTING TOWER DESIGN – GENERAL NOTES

1. The TIA standard used is per Valmont’s investigation of the state code adoption at the time of design. Please contact Valmont for reevaluation if changes are required.

2. Please confirm the loading and risk category shown on the preliminary tower design sheet.

3. Valmont manufactures the antenna mounts used in the design.

4. If not provided, all dishes are assumed to have an azimuth of zero and are installed on legs, A, B, and C, with the apex of leg A facing true north.

5. When possible, feedlines are assumed to be stacked on two rows on wave guide ladders (unless leg brackets are requested) to minimize wind effect.

6. Unless otherwise requested, no additional climbing ladder is included if the tower has a built-in climbing facility, to minimize wind effect. A safety line is included.

7. Should any changes to the above items be required, please contact Valmont for reevaluation prior to ordering PE-stamped permit drawings, construction drawings, or tower materials.

8. Outside climbing ladder not included. Tower sections designed to act as climbing facility.

9. Design includes one 12-line waveguide ladder.

10. Shielding factor (Ka) of 0.8 applied to all EPA loading.

11. 130 mph wind speed used per 2022 CT State Building Code.

File details come from the government source that posted it. Updated .