ROHN 25BRKT040 40 Foot 25G Bracketed Tower Complete Pre-engineered Kit
ROHN
Made in the USA!
The ROHN 25BRKT040 40' foot 25G Wall Bracketed Tower Kit comes Complete and Pre-engineered as Specified in the ROHN Catalog for Use at the Rated Height, Antenna load and Wind Speed indicated. This 25BRKT040 Kit is comprised of (3) 10' Tower Section, (1) Top Cap Section(s), (1) 5' Base Section, (2) Brackets and Grounding Package(optional), less Foundation and Installation.
This Product Order Supplies the Following BOM (Less Foundation and Installation) in accordance for Use as a Wall Bracketed 40 Foot ROHN 25G Tower with EPA (Effective Projected Area) Ratings for 70, 80 or 90 MPH (No Ice). For more info click on the "More Info" Tab above or click here to refer to Allowable Antenna Loading
This Item Ships LTL Freight ONLY!
| INCLUDED MATERIALS WITH 25BRKT040 KIT | ||
|---|---|---|
| QUANTITY | PART NUMBER | DESCRIPTION |
| 1 | 25AG2 | Top Cap Tower Section |
| 3 | 25G | 10' Tower Section |
| 1 | 25AJBK | Bolt Kit for 25G Top Section |
| 3 | 25JBK | Bolt Kit for 25G Tower Section |
| 2 | HBUTVRO | Heavy Duty Adjustable (18 - 36") House Bracket |
| 1 | SB25G5 | 5' Base Section |
| 1 | ACWS | Anti-Climb Warning Sign |
| 1 | ASSEMBLY GUIDE | Printed Specification/Assembly Guide |
| OPTIONAL ACCESSORIES FOR 25BRKT040 KIT | ||
| QUANTITY | PART NUMBER | DESCRIPTION |
| 2 | BGK3G | Tower Base Grounding Kit /includes: (1) 10' of #4 Copper Wire (1) 5/8" x 8' Copper Clad Ground Rod (1) 5/8" Ground Rod Clamp (1) 5/16" x 2 3/8" Grade 5 HDG Bolt (1) 5/16" Hex HDG Nut (1) Hy-Lug YA4C-L4 Compression Terminal Lug |
The 25AG2* Top Cap Tower Section is the Default Standard
Top Section for the 25G Series Tower Kits.
We Offer the following Substitutions when Ordering Our Kits:
| OPTIONAL TOP CAPS FOR 25BRKT040 KIT | |||
|---|---|---|---|
| PART NUMBER | DESCRIPTION | HEIGHT | O.D. |
| 25AG | Top Cap | 9' | 2" |
| 25AG1 | Top Cap | 9' - 3" | 1.66" |
| 25AG2* | Top Cap | 9' - 9" | 2.25" |
| 25AG3 | Top Cap | 9' - 3 1/2" | 2.25" |
| 25AG4 | Flat Plate Top Cap for Thrust Bearing |
8' - 3/16" | Pre-drilled FLAT |
| 25AG5 | Top Cap | 8' - 1/2" | 2.75" |
| APL25G | Assembly Plate | 0.0 | FLAT |
The ROHN APL25G is an Assembly Plate used for Finishing Off a Tower that doesn't require an AG Top Cap Section, and for mounting Aviation Beacon Lighting, Cameras and More.(Field Drilling may be Required)
When Selecting this Top Cap OPTION, a 10' foot Standard Main Tower Section will accompany the APL25G together in Substitution of an AG Top Cap Tower Section in order to maintain the Tower Height Ordered.
This 25G Tower is to be used in a Wall Bracketed Configuration according to the Foundation Specifications and Notes.
This Height Configuration relies on a SB25G5 Embedded in a Concrete Foundation Specified by Engineering. As a Wall Bracketed, Properly Mounted Structure, a 70, 80 or 90 MPH rated 25G Tower can rise to a maximum of 100 feet.
Visit our Knowledge Base for more ROHN 25G Tower Configurations, Foundation and Grounding Detail Information.
Wall Bracketed Towers are limited in Height due to the nature of Antenna and Ice loads versus the Cantilever Nature Of Wind against them, offset by the weight of the Foundation, the cohesion of the soil, the Structural Integrity of the Load-Bearing Wall and the Method of attaching the Wall Support Brackets to same to counter Tower Tipping Point, as well as the strength of the tower members to withstand these Forces against them. ROHN Tower Kits are designed based on assumptions made regarding Windspeed, EPA (Antenna Load), Height, Standard Soil Conditions, Surrounding Environment and Duty. The Pre-packaged Kits contain the parts called for based on this Stock Design. The Stock Design of these Kits does not account for the Variations of Historic Windspeed, Number of Antenna(e) Loading at Specific Height(s), Soil Engineering recommendations, Adjacent Structures, Communications Purpose, or Geo-Political Rules, Laws and Codes That will be Applicable to Your Project. It is Recommended that you take the time to engage an local Engineer that has the expertise and available Information necessary to evaluate the ROHN Catalog Pre-engineered design for Applicability, and/or find the Tower Quote Data Sheet Form by clicking the link that appears on the Footer of this Page Below. *Per Rev G requirements, any structure greater than 10' foot requires a climber safety device.
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ROHN 65G Camera Towers in Complete Kits
ROHN structures can be designed to be utilized for security towers and surveillance applications. Our security towers are supporting cameras at military and government installations around the world. We have both solid and tubular security tower designs and all welded or knock-down designs to meet your security needs.
The all welded 65G tower sections can support 14.5 square feet of camera in 90mph, ½" ice conditions. ROHN has standard 65G security camera towers from 10´ up to 50´. ROHN also designs site-specific towers for security applications in all wind and ice conditions. Our rigid designs limit tower top movement to help ensure camera functionality even through severe weather conditions.
STANDARD VG SELF-SUPPORTING CAMERA TOWERS (all-welded)
REV. G:
110 MPH 3-SEC GUST WIND SPEED (NO ICE),
40 MPH 3-SEC GUST WIND SPEED (3/4" ICE),
CLASS II , EXPOSURE C , TOPO CATEGORY 1
SEISMIC COEFFICIENT S <1.0
STANDARD VG SELF-SUPPORTING CAMERA TOWERS (field bolted)
REV. G:
110 MPH 3-SEC GUST WIND SPEED (NO ICE),
40 MPH 3-SEC GUST WIND SPEED (3/4" ICE),
CLASS II , EXPOSURE C , TOPO CATEGORY 1
SEISMIC COEFFICIENT S <1.0
DESIGN NOTES:
1. Tower designs are in accordance with ANSI/TIA/222-G.
2. Camera and mount assumed symmetrically placed at tower top.
3. Tower design assumes one 7/8" line on each tower face.
4. Assembly drawings and standard foundation details are provided with the tower.
5. Standard foundation illustrated is for general information only and is based on Rev G presumptive clay soil parameters.
FEATURES:
o Completely hot-dip galvanized after fabrication to provide absolute corrosion protection.
o Pre-engineered loading charts meet varying individual specs and site conditions.
o Typical uses include small dishes, broadband, security and two-way communication.
ROHN G-Series Self Supporting Towers
This ROHN G-Series Self Supporting Towers Guide will answer many questions you may have on this Product Line.
GUIDELINES FOR THE PREPARATION OF A GEOTECHNICAL REPORT
I. PURPOSE AND INTENT
a) The intended purpose of these guidelines is to assist the customer and/or owner to retain the services of a Geotechnical Engineer.
b) It is not ROHN´s purpose or intent to supersede the Geotechnical Engineer´s knowledge, judgement and/or experience. It is the Geotechnical Engineer´s responsibility to add or delete from these items, based on local site conditions and other factors.
c) Additional information is provided in ANSI/TIA-222-G Annex G "Geotechnical Investigations".
II. DISCLAIMER
a) ROHN will not accept any liability, either expressed or implied, for the use of, and omissions in, these guidelines.
III. EXPLORATORY BORINGS
a) Borings should be taken at tower legs for self-supporting towers and at the base and anchor points for guyed towers. For small self-supporting towers, two borings may suffice. For large self-supporting towers, one boring should be taken at each tower leg. A "small" self-supporting tower is assumed to have a face width less than 20 feet and a compression load less than 50 kips per leg. For pole structures, one boring may suffice.
b) The minimum boring depth should be 30 feet for pole structures, self-supporting towers and guyed tower bases. For guyed tower anchors, the minimum depth should be 15 feet. The actual depth of boring must be determined by the Geotechnical Engineer based on reactions, soil conditions and the type of foundation recommended.
c) If borings cannot be advanced to the desired depth, rock core samples should be taken. Rock Quality Designation (RQD) values and compressive strengths should be determined.
IV. GEOTECHNICAL REPORT
a) The following properties, for each soil layer encountered, should be determined by field or laboratory testing and summarized in the geotechnical report:
1. Soil classification and elevations
2. Standard penetration values
3. Unconfined compression strength
4. Angle of internal friction
5. Cohesion
6. "In-Situ" soil density and moisture content
7. Rock quality designation (RQD) and percent rock sample recovered
8. Other properties unique to site conditions
b) The following items should be discussed in the geotechnical report:
1. Geological description of site
2. Observed and expected ground water conditions
3. Expected frost penetration depth
4. Corrosion potential of soil and corrosion protection recommendations
5. Site access and potential construction difficulties
6. Dewatering or site drainage requirements
7. Backfill material recommendations
8. Settlement considerations
9. Additional information to aid foundation designer
10. Recommended types of foundations
11. Design parameters for uplift, download and lateral load
12. Factor of safety considered when allowable vs. ultimate design parameters are provided
13. Recommended construction techniques and inspections
