We understand that you may have questions about structural work on your communications tower, and we’re here to provide you with answers. Below are some frequently asked questions along with their respective answers:
You may need to upgrade your broadcast tower in the following scenarios:
If your equipment loading changes by more than 5% then a reanalysis of the tower is required.
In any of these situations, it’s essential to consult an experienced professional to evaluate your current tower’s capabilities and determine if it’s necessary to upgrade or modify the infrastructure.
A rigging plan typically includes information about the equipment to be used, the weight and dimensions of loads, the methods and procedures for lifting and handling components, and safety considerations for personnel and equipment. It is essential to have a rigging plan to minimize the risk of accidents and ensure the safety of workers during tower construction, maintenance, or dismantling activities.
You would need a rigging plan for your broadcast tower in the following situations:
There are four Classes of Rigging Plans each with different levels of responsibility.
Class I plans include lifts of up to 350# with a minimum responsibility of a competent rigger.
Class II plans include lifts of up to 500#, shall be documented and have a minimum responsibility of a competent rigger. Scope of work could include equipment installation or removal.
Class III plans include lifts of up to 2,000#, shall be documented and have a minimum responsibility of a competent rigger along with a qualified person. Scope of work could include equipment installation or removal as well as add-on modifications or those with built in redundancy such as changing bolts one at a time on a multi-bolt flange.
Class IV plans are for lifts over 2,000#, shall be documented and have the minimum responsibility of a competent rigger along with a qualified person as well as a qualified engineer. Scopes would be any work outside the first three including infrequent construction methods, removal of structural members, use of gin poles and other unique situations.
You need a structural analysis anytime your load changes by more than 5% or if there are regulatory changes.
The current adopted structural code for towers can vary depending on the location and jurisdiction you are in. The latest structural code for towers is revision H. Although this has not been adopted by all jurisdictions yet.
To fix a bent member on your tower, follow these steps:
Remember, working on towers can be dangerous, and professional expertise is often needed to ensure the structural integrity of the tower. If you are unsure about how to proceed, consult a professional tower maintenance company for advice and service.
Yes, it is generally necessary to conduct a structural analysis when upgrading your communications tower (A general rule of thumb is to obtain a structural analysis when loading on your tower changes by more than 5%). This analysis helps you to evaluate the tower’s current condition and assess its ability to support the additional equipment, antennas, or modifications you plan to install. It helps to ensure the structural integrity and safety of the tower and its surrounding environment. The analysis should be performed by a qualified engineer with experience in tower design and analysis. Additionally, a structural analysis is often required to meet the requirements of regulatory bodies, such as local zoning authorities.
It is generally recommended to use bracing when replacing a bent tower member. This ensures stability and safety during the replacement process, as bracing will help support the tower structure and prevent any further damage or accidents. However, it is essential to consult with a structural engineer or experienced tower technician to determine the appropriate bracing and replacement method for your specific situation.
Pricing can vary based on the size of the member and specific bracing required for its replacement. Precision Communications would be happy to provide budget pricing based on your specific tower needs.
It is highly recommended to engage a professional engineer for structural work on a communications tower. These engineers have the necessary knowledge, expertise, and experience to ensure the safety, stability, and longevity of the tower. They can also help you navigate the various regulations, codes, and standards imposed by local and national authorities. By engaging a professional engineer, you can minimize the risks of tower failure, property damage, or hazardous situations.
There are several local and regional companies that are qualified to perform structural work on communication towers. It is advised to check the qualifications and certifications of any company before hiring them for such services. Precision Communications has over 30 years experience in safely addressing the structural needs of our customers.