Balanced Single-Layered Web Beam for Suspended Ceilings
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Solution Overview
Problem
Single-layered web beams for suspended ceilings are unbalanced and prone to twisting and bending under vertical loads, lacking the necessary strength and stiffness to support loads effectively without using more metal than double-layered web beams.
Innovation Solution
A single-layered web beam with a seam that secures one flange to the web and another flange cantilevered from the first, using continuous stitching, welding, or adhesives to create a balanced cross-section that loads the beam in the plane of the web, eliminating twisting and bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single-layered web beam is used to reduce metal consumption, then the amount of metal is reduced, but the beam becomes unbalanced and prone to twisting and bending under vertical loads
Solution Approach 1:
The invention introduces a longitudinal seam dimension to the single-layered web beam structure. The seam runs parallel to the beam length and connects the flanges to the web, creating a three-dimensional reinforcement pattern that transforms the unbalanced single-layer structure into a balanced load-bearing system without adding a second web layer.
Solution Approach 2:
The invention creates a composite structure by combining the single-layered metal web with a seam material (which could be the same metal or a different material) that reinforces the connection between flanges and web. This composite construction provides the equivalent strength and rigidity of a double-layered web while using less total metal.
2Quantity of substance
If a single-layered web beam with one flange cantilevered from the web is used, then metal usage is reduced, but the beam lacks balance and is subject to twisting and bending
Solution Approach 1:
The invention introduces a longitudinal seam dimension to the single-layered web beam structure. The seam runs parallel to the beam length and connects the flanges to the web, creating a three-dimensional reinforcement pattern that transforms the unbalanced single-layer structure into a balanced load-bearing system without adding a second web layer.
Solution Approach 2:
The seam provides localized reinforcement at critical stress points where the flanges connect to the web. This local quality enhancement creates balance in the structure by strengthening specific areas that need it most, rather than uniformly thickening the entire web.
3Strength
If more and heavier material is used in a single-layered web beam to achieve necessary strength, then beam strength is improved, but the advantage of using less metal is defeated
Solution Approach 1:
The invention introduces a longitudinal seam dimension to the single-layered web beam structure. The seam runs parallel to the beam length and connects the flanges to the web, creating a three-dimensional reinforcement pattern that transforms the unbalanced single-layer structure into a balanced load-bearing system without adding a second web layer.
Solution Approach 2:
The invention creates a composite structure by combining the single-layered metal web with a seam material (which could be the same metal or a different material) that reinforces the connection between flanges and web. This composite construction provides the equivalent strength and rigidity of a double-layered web while using less total metal.
4Stability of the object's composition
If a seam is added to bind flanges to the web in a single-layered beam, then structural balance is achieved, but manufacturing complexity increases
Solution Approach 1:
The seam is incorporated into the beam during the rollforming process itself, rather than being added as a separate post-forming operation. This preliminary action integrates the seam creation into the primary manufacturing step, reducing overall manufacturing complexity despite the added structural feature.
Data Source
AI summary
A balanced, single-layered web beam for a grid in a suspended ceiling, wherein opposing flanges at the bottom of the web are cantilevered directly from the bottom of the web. When the flanges are equally loaded, the resultant load on the beam passes through the vertical plane of the web, so the beam does not twist or bend.