Load-Bearing Column Using Segmented Profiles
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Solution Overview
Problem
Existing steel frame construction methods using tubular or joint steel profiles for load-bearing columns are costly and voluminous, requiring complex transport and on-site anti-corrosion treatments, while lacking the same level of buckling resistance, torsional rigidity, and shape stability as tubular columns.
Innovation Solution
A construction method using elongated profiles with channel and edge portions, joined by play-free connections at multiple spots within an internal channel, allowing for compact transport and assembly without anti-corrosion treatment, achieving equivalent stability and rigidity to tubular columns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tubular columns are used, then buckling resistance and shape stability are improved, but transport volume and cost increase
Solution Approach 1:
The column is divided into multiple separate C-profiles that can be transported individually in a compact arrangement, then assembled on-site to form the complete column structure. This segmentation allows reduced transport volume while maintaining the structural integrity and buckling resistance of the final assembled column.
2Stability of the object's composition
If welding is used to join profiles, then shape stability is improved, but corrosion resistance deteriorates requiring aftertreatment
Solution Approach 1:
The welding process is replaced with a mechanical fastening system using screws or bolts to join the C-profiles together. This mechanical connection achieves the required shape stability and torsional rigidity without compromising the galvanised coating, thereby maintaining corrosion resistance without requiring additional anti-corrosion aftertreatment.
3Stability of the object's composition
If welding is used to join profiles, then shape stability is improved, but manufacturing complexity increases due to deformation control
Solution Approach 1:
The complex welding process requiring deformation control and skilled operators is replaced with a straightforward mechanical fastening system. The C-profiles are positioned with flanges facing each other and secured using screws or bolts, significantly reducing manufacturing complexity while maintaining the required shape stability.
4Strength
If C-profiles are positioned web-to-web with concrete filling, then bearing capacity is improved, but device complexity increases
Solution Approach 1:
The concrete filling operation is extracted and eliminated from the construction process. Instead of positioning C-profiles web-to-web and filling with concrete, the invention uses C-profiles with flanges facing each other joined by mechanical fasteners, achieving the required bearing capacity without the additional complexity of concrete placement and curing.
Data Source
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AI summary
Construction (100) comprising one or more load-bearing columns (200), any of the columns (200) comprising a first (201) and a second elongated profile (202), and each profile comprising: - two opposing side walls (401, 402) and a base wall (403); - a first (405) and a second edge wall (406) directed inwardly, wherein both the opposing first edge walls (305, 405) and the opposing second edge walls (306, 406) are joined at multiple connection spots (503, 504) along the length, wherein the joint provided at any of the connection spots (503, 504) is such that there is no play in the connection at the connection spots, and wherein access holes (300, 400) are provided in the base wall (303, 404) or a side wall (301, 302, 401, 402) of the first and/or second elongated profile (201, 202).