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These cookies ensure basic functionalities and security features of the website, anonymously. The less re-creation of a model we have to do the better with the additional benefit that we virtually eliminate the risk of entering the wrong figures and the applied forces are in equilibrium or balanced.Necessary cookies are absolutely essential for the website to function properly. IDEA StatiCa has a set of BIM links that can greatly streamline the workflow and also safeguard using the correct members and forces from the load case combinations that were used in the analysis model. It is only right that we discuss the role of the analytical model - after all without this we wouldn't know the size and material of the members concerned or the forces acting on them. But it can only do so with the engineer in control. With the right members, in the right location and with the correct load effects applied IDEA StatiCa will code check your splice connection to one of several codes from around the world. Load effects are then applied to the members that form the splice. This is the red square that appears at the end of the member. This is the member that effectively supports another. In IDEA StatiCa Connection there is the concept of a supporting (or Ended) member. An overall frame analysis that has used incorrect assumptions will also give incorrect results. The forces that we should use in the design of any splice should be the forces at that location. This begs the question what is happening to the forces at this offset? How do they compare with the assumed location? What are the requirements of the connection? All this is before we are looking at the fabrication requirements of the splice which many forget about: flange packers (1), web packers (2), grinding flush to achieve (near) perfect contact or top plates (3). If we assume we have a multi-story steel frame then there is a finite length we can obtain columns and these are usually split after two (and a bit) stories. Then the lift above will generally have a smaller column section. On a set of floor plans we will see the change in column section. If the same model is used (or even re-created) for analysis and design then the change in column will probably be coincident with the floor beams. The splice cannot be positioned at the same location as the floor beams but at a designated offset – this reflects how the building is being constructed. This example highlights the interaction between construction, analysis and documentation, which is often put to one side or considered as an afterthought. When we start to think about positioning these joints it is usually after the initial modeling and global analysis. Herein lies a possible problem: should these joints be modeled in the correct locations from the start and with the correct parameters? When we think about a splice joint we generally gravitate towards a column splice. In steelwork that takes the form of increasing the length of a column or a beam or even a truss. As we introduce these splice joints, we can utilize greater efficiency in design by increasing the size of a column as we go down or by splitting a long beam into smaller ones to allow for easier installation. Understanding the constraints and forces involved is one thing being able to apply them correctly is another. This is where IDEA StatiCa can greatly help with the workflow by examining the various conditions and load cases to make sure the joint is both safe and efficient. Much has changed since then (including the use of computers).Ī splice is something that joins one item to another. We see this every day but probably don’t realize: how long can a cable or drain or a brake line on a train be? All things have a finite length or weight. Sometimes there is an imposed limit on how long or heavy something can be. A splice is a way of increasing that length or weight. It was one of the very first connections I designed way back when I was at university. When I was asked to write a blog article about the splice connection I thought “great”.
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