Staggered Web I-Beam Construction for Corrosion Resistance
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Solution Overview
Problem
Existing building beams face challenges in spanning large distances without intermediate supports, are prone to corrosion due to water pooling, require complex manufacturing and transportation processes, and lack versatility in beam sizes.
Innovation Solution
A beam construction method using separately formed web sections with convergent side walls and central walls, arranged in an alternating staggered pattern, connected to flanges with overlapping side walls and optional fasteners or welding, allowing for easy assembly and corrosion resistance through drainage of trapped moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional solid rectangular steel beams are used to span large distances, then structural strength is improved, but weight increases significantly
Solution Approach 1:
The beam cross-section is segmented into an I-shaped configuration with two parallel flanges connected by a web, dividing the solid rectangular section into strategic structural elements. This segmentation maintains structural strength by concentrating material at the flanges (where bending stresses are highest) while reducing material in the web region, thereby reducing overall weight without compromising load-bearing capacity.
Solution Approach 2:
The beam employs a composite construction combining steel flanges and web elements to create an I-beam structure. This composite approach optimizes the distribution of structural material, placing high-strength components where needed (flanges for bending resistance) and using lighter webbing for connection, achieving superior strength-to-weight ratio compared to solid rectangular beams.
2Adaptability or versatility
If steel beams are manufactured with various sizes to meet different construction requirements, then adaptability is improved, but manufacturing complexity and inventory requirements increase
Solution Approach 1:
The manufacturing process uses a universal coil width that can be formed into multiple beam sizes through varying the forming parameters (flange width, web depth, thickness). This universal base coil design allows the same manufacturing equipment and material stock to produce different beam specifications, reducing the need for multiple specialized production lines and inventory variants while maintaining adaptability to different construction needs.
3Quantity of substance
If beams are stored horizontally during transportation and storage, then space efficiency is improved, but corrosion risk increases due to water pooling
Solution Approach 1:
The I-beam's web and flange surfaces incorporate curved profiles rather than purely flat surfaces. This curvature prevents water from pooling on horizontal surfaces during storage, as water naturally drains along the curved surfaces to the beam ends. This design feature eliminates the corrosion risk associated with horizontal storage while maintaining space-efficient storage configurations.
4Strength
If the webbing is welded in a zig-zag pattern to parallel tubes, then torsional strength is improved, but manufacturing complexity and corrosion susceptibility increase
Solution Approach 1:
The webbing is segmented into discrete sections rather than continuous zig-zag welding. These separate web segments are positioned and secured between the flanges, providing torsional resistance through their distributed arrangement. This segmentation simplifies manufacturing by eliminating complex zig-zag welding operations while maintaining adequate torsional strength through the segmented web configuration.
Data Source
AI summary
Structural building components and a method of constructing the same enable improved beams that can be constructed at a place of use. The method includes providing a first flange (16) and a second flange (18) defining a central beam axis (55). A number of separately formed web sections (12) are provided, each having two convergent side walls (42) and a central wall (40) extending between converging ends of the side walls (42). The web sections (12) are arranged side by side in an alternating arrangement wherein the central walls (40) of adjacent web sections (12) are spaced substantially parallel to each other and are transversely staggered relative to the central beam axis (55). The side walls of adjacent web sections (12) are connected to one another, and the web sections (12) are connected to both the first flange (16) and second flange (18).