Monopole Collar Mount With Dispersement Plates for Load Distribution
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Solution Overview
Problem
Legacy collar mounts for base station monopoles create unacceptably high point loads, leading to potential failure of the monopole due to localized stresses and plastic deformation, especially as the weight and effective projected area of equipment increase.
Innovation Solution
A collar mount design featuring non-rigidly connected dispersement plates that distribute load over a wider area of the monopole, using threaded members to secure pressure members and incorporating adjustable kicker arms to manage larger loads, reducing localized stresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional collar mount is used to secure base station equipment to a monopole, then the equipment can be mounted and secured, but high point loads are created that lead to localized stresses and potential monopole failure
Solution Approach 1:
The collar mount is divided into multiple pressure members (typically three) that are distributed around the monopole circumference. Each pressure member applies force at a different location, segmenting the load application points. This segmentation prevents concentration of stress at a single point while maintaining secure attachment of the base station equipment to the monopole structure.
Solution Approach 2:
The pressure members are arranged in a three-dimensional configuration around the monopole, extending in the radial direction from the monopole surface. This spatial arrangement distributes the load across multiple dimensions (circumferential position and radial distance), transforming a potential point load into a distributed load pattern that reduces localized stress concentration on the monopole.
2Adaptability or versatility
If equipment weight and effective projected area increase, then more capacity is available for base station functionality, but the load on the monopole increases leading to higher risk of failure
Solution Approach 1:
The collar mount structure segments the equipment load into multiple load paths through its three pressure members. As equipment capacity increases, the segmented structure distributes the additional weight across three separate contact points on the monopole rather than concentrating it, allowing the system to accommodate heavier equipment while maintaining structural integrity through load distribution.
Solution Approach 2:
Each pressure member is designed with specific local characteristics including pressure plates with enlarged surface areas at the monopole interface. This local quality enhancement at each contact point distributes the load from individual pressure members across larger areas of the monopole, preventing localized stress concentration even as total equipment weight increases.
3Stress or pressure
If pressure plates with enlarged surface areas are used, then load distribution is improved and localized stresses are reduced, but the device complexity increases
Solution Approach 1:
The collar mount uses three separate pressure members instead of a single complex pressure distribution system. Each pressure member is a relatively simple component with an enlarged surface area pressure plate, but together they achieve superior load distribution. This segmentation into simple, repeatable units reduces overall device complexity while improving load distribution compared to a single complex integrated structure.
Solution Approach 2:
The collar mount combines multiple simple pressure members into a unified attachment system that functions as a single collar mount assembly. By merging three identical or similar pressure members with threaded rods and nuts into one system, the design achieves complex load distribution functionality while keeping individual components simple and the overall structure manageable.
Data Source
AI summary
A collar mount for a base station monopole has a plurality of pressure members that surround the monopole. Threaded members are connected between adjacent pressure members to tighten the pressure members against the monopole. Pressure plates of the pressure members have a forward edge configured to engage the monopole at a pressure point. A dispersement plate is positioned at the pressure point where the dispersement plate is non-rigidly connected to the pressure plates. A second threaded member may connect the upper pressure plates of each two adjacent pressure members together. Each of the pressure members may include a plurality of pressure plates where the pressure plates have a width direction extending parallel to the monopole and a thickness direction extending perpendicular to the width direction where the width direction is larger than the thickness direction.