Steel Façade Bracket with Thermal Break
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Solution Overview
Problem
Current façade cladding systems face structural and load challenges, thermal inefficiencies, and installation inefficiencies, particularly with aluminum extruded brackets that act as thermal bridges and have limited load-carrying capacity, leading to issues like water penetration and moisture problems during extreme weather conditions.
Innovation Solution
A steel-based wall bracket with a high strength-to-weight ratio, featuring a planar base and flanged portion connected by a strengthening rib, which includes fixing holes and a thumb hold portion for easy installation and load distribution, providing enhanced load resistance and thermal insulation by minimizing thermal bridging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If aluminum extruded brackets are used, then installation is simplified, but load-carrying capacity is limited and thermal bridging occurs
Solution Approach 1:
The bracket uses a composite construction combining steel components (for strength) with thermal break materials (for thermal insulation). The steel flange provides high load-carrying capacity while the thermal break section prevents thermal bridging, resolving the contradiction between strength requirements and thermal performance.
Solution Approach 2:
Different portions of the bracket have different material properties optimized for their specific functions: the flange area uses high-strength steel for load bearing, while the section contacting the insulating layer uses thermal break materials. This local differentiation allows the bracket to simultaneously achieve high strength and thermal insulation.
2Strength
If thicker brackets are used, then load resistance increases, but weight and thermal conductivity increase
Solution Approach 1:
The bracket employs composite materials where steel provides the necessary load resistance without requiring increased thickness, while thermal break materials with low thermal conductivity are integrated to minimize thermal bridging. This composite approach allows high strength-to-weight ratio and low thermal conductivity simultaneously.
Solution Approach 2:
The bracket is segmented into distinct functional zones: a steel flange for load bearing, a thermal break section for thermal insulation, and connection elements for assembly. This segmentation allows each portion to be optimized independently, achieving high load resistance without proportionally increasing thermal conductivity.
3Weight of moving object
If aluminum brackets are used, then weight is reduced, but structural strength and load capacity are insufficient
Solution Approach 1:
The bracket uses steel materials in critical load-bearing areas to achieve high structural strength, while the overall design maintains lightweight characteristics through optimized geometry and selective material placement. The steel components provide the necessary strength-to-weight ratio that aluminum cannot achieve alone.
Data Source
AI summary
A bracket for fastening a sub-frame assembly that includes a planar base portion, a planar flanged portion that is fixable or slidable connected to the planar base portion at a connection joint, a plurality of fixing holes provided on the planar base portion and the planar flanged portion that is fixable or slidable, and at least one strengthening rib provided on the planar base portion, the connection joint, and the planar flanged portion that is fixable or slidable. The planar flanged portion that is fixable or slidable includes a thumb hold portion configured to engage the sub-frame assembly. The planar base portion is configured to be connected to a load-bearing wall.


