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Anchor bolts shall be x” diameter, x” length, with an x” right angle hook at the unthreaded end, specific dimensions below. The bent portion of the anchor bolt shall be free from cracks when examined at a 10X magnification after bending. The straight end of the anchor bolt shall have 6” length of threads with 8 threads per inch.
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The threads shall be rolled and the body diameter shall not be less than the pitch diameter for the thread class 2A specified in ANSI/ASME B1.1. Thread acceptability shall be in accordance with ANSI/ASME B1.3. Using the correct anchor bolt template is critical when creating the foundation for all anchor base poles. Pole bases differ depending on pole shaft size, pole shaft shape and pole shaft material. The matrix below provides the critical dimensions required to set the AB’s correctly.
The bolt circle is measured diagonally across the pole base, the base square is the outside measurement of the base plate and the anchor bolt projection is the amount of each AB that must be exposed above the final grade. These generic anchor bolt templates are to provide a guide when creating a template using the measurements from the table and should not be printed and used. The anchor bolt templates that are sent with the pole or anchor bolts will have the correct dimensions on the template. Always check to make sure you received the correct template based on the specific pole before use.
When building the foundation for a Light Pole, it is very important to use the appropriately sized anchor bolts along with the correct anchor bolt template. All our anchor bolts and templates are in stock at our Distribution Centers and are available for next day shipping. Below is a quick reference guide to the anchor bolt template and anchor bolts that are to be used with each type pole. In 1985, the American Association of State Highway and Transportation Officials (AASHTO) revised their 1975 standard specification for breakaway pole performance. The vehicle test weight was lowered from 2250 lbs. And the requirement was made for no more than 4” stub height to remain after the pole break away was added. Arcadia So Red The Rose Remastered.
Effective July 1, 1990, the Federal Highway Administration (FHWA) required that all unguarded poles used on highway projects receiving Federal funds, must meet this breakaway criteria. The following FHWA-approved breakaway devices meet those needs. The Federal Highway Administration (FHWA) accepts certain direct buried lighting poles for use on the National Highway System under the provisions of National Cooperative Highway Research Program (NCHRP) Report 350 “Recommended Procedures for the Safety Performance Evaluation of Highway Features.” Poles accepted for use on the National Highway System are required to meet appropriate evaluation criteria and are placed through rigorous impact testing procedures. Vtu 7th Sem Eee Question Papers Download. For information regarding the specifications set forth by the Federal Highway Administration, visit the website: www.fhwa.dot.gov bottom phrase. Replacing a foundation can be expensive or unrealistic on large projects. Base adaptors may not be possible for all conditions and are bulky, expensive and aesthetically unappealing. HILTI brand epoxy set anchor bolt systems offer a wide range of sizes and a technical support team for assistance.
HILTI’s phone number is 800-879-8000. We can provide base reactions (shear force, axial force, bending moment and torsional moments occurring at the pole base used for foundation design) for the pole to assist HILTI technicians select the proper anchor bolt and epoxy formulation for the application. For base reactions, we will require the wind zone for the installation site and the total EPA and weight loading of the fixtures mounted on the pole. When choosing between a base adaptor and the use of HILTI products, some considerations would involve size of anchor bolt, aesthetics, time and cost. The base adaptor method is rather expensive, involves more time to produce the adaptor and delays the project.
Additionally, the spool increases the mounting height of the fixture which may violate local building codes—requiring the pole to be field-modified if necessary. Ultimately, the customer may not accept the “bulky look” of a base adaptor. One possible option to the base adaptor is the use of a standard Transformer Base. While it is bulky like the base adaptor, it does present a much cleaner, finished look and can be supplied faster than a custom manufactured adaptor when time is an issue.