Trapeze Hanger Brace Assembly for Seismic Lateral Stability
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Solution Overview
Problem
Trapeze pipe hangers are unstable under lateral loading conditions, particularly during seismic events like earthquakes, which can lead to damage to the hangers or the pipes they support.
Innovation Solution
A brace assembly comprising a structural member, a bracket with a baseplate and a clamp, and a hinge pin, which secures the structural member to the bracket, providing stability by allowing rotational adjustment and secure fastening to the rods of the trapeze pipe hanger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a trapeze hanger is designed to be simple and easy to install, then ease of operation is improved, but stability under lateral loading deteriorates
Solution Approach 1:
The brace assembly incorporates a hinge joint that allows the brace to rotate and adjust dynamically during installation and operation. The hinge pin passes through aligned holes in the structural member and baseplate, enabling the brace to adapt to lateral movements and seismic loads while maintaining connection stability, thus resolving the contradiction between simple installation and lateral stability.
2Adaptability or versatility
If the brace assembly uses a slot with rounded end and countersink, then adaptability to different positions is improved, but device complexity increases
Solution Approach 1:
The baseplate is segmented into functional zones: a slot for rod insertion, a rounded end for positioning, and a countersink for fastener reception. This segmentation allows each feature to perform its specific function independently, providing adaptability for different rod positions while keeping the overall design manageable through clear functional division.
Solution Approach 2:
The baseplate design integrates multiple functions into a single component: the slot allows rod insertion at various positions, the rounded end provides positioning and rotation capability, and the countersink secures the fastener. This multi-functionality achieves adaptability without requiring multiple separate components, thus managing complexity.
3Strength
If the hinge pin securely couples the structural member to the bracket, then strength of connection is improved, but ease of assembly deteriorates
Solution Approach 1:
The hinge pin holes in the structural member and baseplate are pre-aligned during manufacturing or design, allowing the hinge pin to be inserted directly without complex alignment procedures during assembly. This preliminary alignment action maintains strong connection strength while significantly improving ease of assembly.
Data Source
AI summary
A brace assembly can include a structural member including a sidewall; and a bracket including a baseplate defining a slot extending from an open end to a closed end, the baseplate defining at least one baseplate hinge hole at the open end; a clamp including a jaw member and a tightening member, the jaw member and the tightening member engaging the sidewall to couple the structural member to the bracket, the jaw member defining a clamp hinge hole; and a hinge pin engaging the at least one baseplate hinge hole and the clamp hinge hole.