Multi-piece Hanger with Interlocking Brackets for Adjustable Post-to-Beam Connections
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Solution Overview
Problem
Conventional post-to-beam hangers made of galvanized steel are not adjustable to handle dimensional variability in structural members, require finish carpentry for concealment, and have a utilitarian appearance, leading to increased costs and inadequate load support.
Innovation Solution
A multi-piece hanger system comprising L-shaped brackets with interlocking flanges and slots, allowing for adjustable attachment to the underside of beams and post members, with ornamental features for aesthetic integration, enabling secure and adjustable support across varying dimensions without the need for additional concealment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional galvanized steel hangers are used for post-to-beam connections, then structural support is provided, but the hangers require finish carpentry for concealment and have a utilitarian appearance
Solution Approach 1:
The hanger is finished with a wood-grain texture and stained to match the surrounding wood members, transforming its appearance from industrial galvanized steel to a natural wood aesthetic that blends seamlessly with the post and beam structure
Solution Approach 2:
The hanger material is changed from metal to wood, fundamentally altering its visual properties to match the architectural aesthetic while maintaining structural capability through proper wood species and grading selection
2Strength
If conventional galvanized steel hangers are used, then structural support is provided, but they cannot adjust to dimensional variability in structural members
Solution Approach 1:
The hanger incorporates a sliding mechanism with slots that allow dynamic adjustment of the hanger's position along the beam depth and width, enabling adaptation to various dimensional specifications while maintaining secure attachment
Solution Approach 2:
The hanger is divided into adjustable segments with sliding components that can be independently positioned to accommodate different member dimensions, providing versatility without compromising structural integrity
3Ease of operation
If mounting devices are driven through the beam into the post, then connection is achieved, but the connection cannot support large loads
Solution Approach 1:
The hanger combines multiple attachment functions into a single integrated component that simultaneously attaches to the post and supports the beam, distributing loads across multiple attachment points and increasing overall connection strength
Solution Approach 2:
The hanger acts as an intermediary component between the post and beam, providing a larger bearing surface and multiple attachment points that distribute and enhance load capacity beyond what direct mounting devices can achieve
Data Source
AI summary
A post member includes a side surface, and a beam member includes a side surface and an underside edge surface. The beam member is attached to the post member using a multi-piece hanger including a first L-shaped bracket with a first mounting flange attached to the side surface of the post member, and a second L-shaped bracket with a second mounting flange attached to the side surface of the beam member. The first L-shaped bracket further includes a first interlocking flange supporting the underside edge surface of the beam member. The first interlocking flange includes an extending tab member. The second L-shaped bracket further includes a second interlocking flange positioned adjacent the first interlocking flange. At a bend of the second L-shaped bracket, at least one slot is provided which is sized and shaped to receive the extending tab member.