Universal columns are highly versatile steel sections that are used in all manner of construction and building projects, helping to provide much-needed structural support to buildings and structures. Most commonly, these sections are joined together through the process of welding, which fuses two or more sections under high heat. However, if improper technique is used, it can lead to weak joints that compromise the structural integrity and overall strength of the finished structure. In this post, we take a look at some common mistakes that people tend to make when welding universal columns, so you can avoid them.
Universal Column Welding Mistakes
Because of their unique sizes, shapes and structural functions, universal columns present an additional challenge for welders. Here are some of the most common welding mistakes when it comes to welding universal columns:
Incomplete Fusion at Flange to Web Intersections
Compared to regular steel sections, universal columns generally tend to have thicker flanges and webs. This can make it harder to achieve full penetration welds especially at intersections between flanges and webs. Such incomplete fusion can potentially compromise the load bearing capacity of the structure and it is therefore extremely important to take care when welding such sections together.
Inadequate Preparation
When welding steel sections together, it is always important to adequately prepare the parts that are to be welded by cleaning the surfaces and ensuring that the edges are properly fitted and free from contamination. This preparation also involved removing any rust, paint or debris that could interfere with the welding arc. When it comes to welding universal columns together, additional care must be taken as they often have thick, heavy flanges that need to be bevelled before welding. Failure to do so can result in large gaps or a poor fit between different sections.
Wrong Welding Sequence
Universal columns are often welded together as part of large structural frameworks. However, the complexity of such structural frameworks often means that additional care must be taken to ensure that a proper welding sequence is adhered to. Proper sequencing can help to avoid imbalance in the welding and internal stress that can affect the function of the structural framework. In addition, it can also help to significantly reduce the risk of distortion or warping, which is crucial when working with large steel sections like universal columns.
Not Using High Quality Universal Columns
Failing to use high-quality universal columns in your building or construction project can also cause problems when it comes to welding and joining the columns together. As such, it is especially important to ensure that you get your steel from a reputable supplier. RW Steel is the premier supplier of steel sections in Melbourne, and our extensive catalogue includes universal columns of all sizes, ranging from 100UC14.80 to 250UC72.90, as well as various other steel products such as retaining wall steel. Get a free, no-obligation quote for all your steel needs on our website today!