Angled Structural Connector With Reinforced Slots
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Solution Overview
Problem
Existing building structural connectors fail to effectively manage relative movement between framing members due to settlement, temperature changes, and external forces, leading to gaps that allow air and moisture intrusion and stress on structures.
Innovation Solution
An angled connector with elongated slots and reinforced fasteners, including embossments and washers, allows for relative movement between structural members while maintaining strong load-bearing capabilities, using light-gauge steel for cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple fasteners are used in the slot closest to the juncture, then the connection strength is improved, but the device complexity increases
Solution Approach 1:
The patent applies different fastening configurations to different slots based on their functional requirements. The slot closest to the angled juncture receives multiple fasteners (at least two) to provide enhanced connection strength where structural integrity is most critical, while other slots may use single fasteners. This localized differentiation of fastening density optimizes overall connection strength without unnecessarily complicating the entire connector design.
2Adaptability or versatility
If the connector allows relative movement between structural members, then the adaptability to settlement and temperature changes is improved, but the connection strength deteriorates
Solution Approach 1:
The connector incorporates elongated slots that permit dynamic relative movement between the first and second structural members while maintaining connection integrity. The slots are oriented to allow movement in directions corresponding to expected settlement and thermal expansion, enabling the connection to adapt to changing conditions. Multiple fasteners in critical slots provide anchoring points that maintain strength even as the connection dynamically adjusts to movement.
3Ease of manufacture
If light-gauge steel is used for the connector, then the manufacturing cost is reduced, but the connection strength deteriorates
Solution Approach 1:
The patent employs light-gauge steel for the connector body to minimize material cost and manufacturing complexity, while concentrating reinforcement where structurally necessary. Multiple fasteners are installed in the slot closest to the angled juncture to compensate for the lighter gauge material, providing enhanced connection strength at the most critical location without requiring the entire connector to be made of heavy-gauge steel.
Data Source
AI summary
An improved connection between supporting and supported structural members, particularly between the sheathing and framing members of curtain walls, wherein the connector is an angular member having first and second plates joined at an angular junction and the second plate is formed with a plurality of elongated slots and the fastening in the elongated slot closest to the angular juncture is reinforced.