Compressed Loop Veneer Tie Anchoring
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Solution Overview
Problem
Existing facade support systems, such as veneer ties, face challenges in securely anchoring outer masonry wythes to inner wythes, particularly in maintaining resistance to forces that pull the facade away from the building, while minimizing damage to the inner wythe surface and ensuring uniform mortar-filled bed joints.
Innovation Solution
A veneer tie design featuring a unitary wire formative with a compressively reduced loop attachment portion and transverse insertion portion, configured to receive a fastener for secure attachment to the inner wythe and extend into the bed joint of the outer wythe, distributing force over a greater area to enhance resistance and prevent displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastener is inserted through an opening in the veneer tie to secure it to the inner wythe, then the veneer tie is anchored to the building, but the loop may deform or rotate under load, reducing anchoring reliability
Solution Approach 1:
The patent applies parameter changes by compressing the loop in a direction normal to its plane, reducing the cross-sectional area of the wire forming the loop. This compression increases the stiffness and resistance to deformation of the loop, preventing it from deforming or rotating under load while maintaining its ability to anchor the veneer tie reliably to the inner wythe
2Strength
If the veneer tie is secured tightly to the inner wythe, then anchoring strength is improved, but damage to the inner wythe surface may occur
Solution Approach 1:
The patent compresses the attachment portion of the veneer tie, which increases its stiffness and allows it to maintain strong anchoring force without requiring excessive compression that would damage the inner wythe surface. The compressed state provides sufficient friction and mechanical interlocking while distributing forces more evenly
3Strength
If the insertion portion extends into the bed joint, then resistance to pull-away forces is improved, but the bed joint uniformity may be compromised
Solution Approach 1:
The patent applies local quality by providing a specific insertion portion geometry that is optimized for engagement with the bed joint. The insertion portion has a length and cross-section specifically designed to embed into the mortar joint, providing enhanced anchoring resistance to pull-away forces while maintaining a clean, uniform appearance at the visible facade surface
Data Source
AI summary
A veneer tie for use in a wall to join a veneer wall to an inner wall. The veneer tie includes an attachment portion and an insertion portion. The attachment portion has a loop defining an opening configured to receive a fastener to secure the attachment portion to the inner wythe. The attachment portion is compressively reduced in a direction that is generally normal to the opening. The insertion portion is fixed to the attachment portion and extends in a direction transverse of the attachment portion. The insertion portion is configured for attachment to the veneer wall.