Adjustable Interlocking Beam Joint for Bent Moment Connections
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Solution Overview
Problem
Existing construction methods face challenges in creating moment connections for bent beams, particularly in wood constructions, due to the complexity of achieving load resistance without failure and the high cost and unavailability of bent metal beams.
Innovation Solution
Engineered beams with interlocking joint portions that allow for adjustable angles, enabling easy assembly and connection of straight-beam segments using rotatable joints, which can be fixed with adhesives or fasteners, eliminating the need for additional supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If bent metal beams are used to achieve required architectural shape, then the structural shape requirement is met, but the cost increases and availability decreases
Solution Approach 1:
The bent beam is divided into multiple straight beam segments that are connected through interlocking joints. Each segment remains straight and easy to manufacture, while the combination of segments creates the required bent architectural shape. This segmentation allows standard straight beams to replace custom-bent beams, reducing cost and improving availability.
Solution Approach 2:
The interlocking joints incorporate rotatable mechanisms that allow the beam segments to be adjusted to different angles during assembly. This dynamic adjustment capability enables the same straight beam segments to create various architectural shapes on-site without requiring precise pre-bending or custom fabrication.
2Strength
If full moment connection of bent steel beam is produced in metal shop, then structural integrity is achieved, but manufacturing complexity and precision requirements increase
Solution Approach 1:
The moment connection function is segmented between the interlocking joint mechanism and the beam segments. The joint portion contains the complex connection mechanics with interlocking features, while the beam segments remain simple standard components. This segmentation transfers manufacturing complexity from the beams to the standardized joint component.
Solution Approach 2:
The interlocking joint acts as an intermediary component that provides the moment connection function. Rather than creating complex connections directly in the beam segments, the joint serves as a mediator that simplifies the connection process while maintaining structural integrity through its designed interlocking mechanism.
3Strength
If ridge beam is installed to support cathedral ceiling, then structural support is provided, but interior space is reduced
Solution Approach 1:
The ceiling structure is segmented into multiple straight beam segments connected at angles, replacing the traditional single ridge beam. This segmentation eliminates the need for a central supporting ridge beam, allowing the ceiling structure to span without intermediate supports and thereby preserving interior space while maintaining structural support.
4Adaptability or versatility
If adjustable angle connection is implemented, then adaptability increases, but connection complexity increases
Solution Approach 1:
The interlocking joint is designed as a universal connection mechanism that can accommodate multiple angles and configurations. The same joint design works for various beam orientations and angles, providing adaptability without requiring different connection types. The rotatable feature within the joint enables angle adjustment while the joint itself remains a standardized component.
Data Source
AI summary
A system for providing an angled construction or bent beam construction. Such system may include a first beam comprising a first elongated beam segment having a first interlocking joint portion at one end, and a second beam comprising a second elongated beam segment having a second interlocking joint at one end, wherein the first interlocking joint portion is configured to rotatably couple to the second interlocking joint to form a rotatable joint such that the angle between the first beam and the second beam is adjustable.