In constructing a building, using general materials that are aligned and meet the standards will help make the overall structure strong and stable. This also applies to steel structures, choosing quality structural steel, standardized lengths and sizes is essential to support the jointing, welding and construction, ensuring that they can be carried out smoothly without any problem after that. SYS’s H-beam offers that required quality. It has been tested after each production process to make sure that it will offer uncompromised quality and meet the standards, strengthening users’ confidence in all aspects.
Web off Center, first thing to check
Generally, H-beam structural steel consists of two parts, the flange and the web. In the production process, making the H-beam components 100% symmetrical or centered is quite difficult. As a result, the web or the flange would slightly shift to the left or right. We call this asymmetry as Web off Center, or what’s specified in the TIS standard as Eccentricity (S). The TIS standard has specified the Web off Center, or Eccentricity (S), at not over 2.5 mm. The figure indicates the value by which we can still use the steel for further welding or connecting without any issue.
Less eccentricity results in easier connection
When the steel is shifted to its left or right at a value that exceeds the standard, it’ll make steel connections overlap and the seam may need to be thicker while inspection of welding and quality control also become more difficult. Also, if the steel used has a high eccentricity, when connecting multiple steel bars, it may result in the centerline of the structure being misaligned, leading to inaccuracy in calculation. Problems occur when it needs to support weight, as the weight will not align down along the structure, which potentially causes damage to the construction. When choosing steel for construction, you must choose a standard steel and be informed about these specifications as well.
Minimize the value to enhance steel connection and its stability
Although the current TIS standard allows the eccentricity (s) at 2.5 mm, some constructions and users require steel that is subject to less eccentricity value. SYS becomes aware of the problem and the needs, thus adjusting and controlling the production of hot-rolled structural steel. Steel in general would limit the value to that required by TIS, but at SYS, we have put our efforts to minimize the web off center value or Eccentricity (S) to be even as low as 1-2 mm to heighten users’ confidence, reducing the problems of overlapping and ensuring stability throughout its use.
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