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Embedded mast

Introduction In some cases, especially in the perimeter of tensile constructions we find solutions based on bipods (a mast and a stay cable) or tripods (one or two masts with two or one stay cables respectively) and even more complex sets of masts and stay cables. Stay cables usually hinder, since they are usually very thin, not easily seen and can cause accidents. They also occupy a space that is …Read More

Inclined Compression Force

Introduction Inclined compression force is a very common case in tensile constructions. In fact, it is usually more common than vertical compression. Inclined masts are used, above all, to increase the lever arm of the moment that form the vertical reactions at the base of the masts and the stay cables, in most of the   perimeter supports (bipods or tripods) . If we decompose the inclined force Ft in …Read More

Vertical Compression Force

Introduction This type of foundation is the one that most resembles the foundations of traditional construction. In these cases, the vertical load is much more important than the horizontal one or the moment. The analysis of the foundation is practically reduced to find a contact surface that produces a stress on the ground smaller than the soil bearing capacity. N / A ≤ sa where N = vertical load A …Read More

Inclined Pulling Load

Introduction In this case. pulling force Ft has two components. vertical Fy and horizontal Fx. Fy has already been studied in the previous section (although it will be re-studied later on when considering footing rotation).  Now. we will pay attention to the behaviour of Fx In order to guarantee stability. the footing will put up resistance to Fx in some different ways. Re soil lateral resistance. produced by lateral earth …Read More

Vertical Pulling Load

Introduction This is the simplest case. The foundation is subject to the vertical pulling load  Fy. To provide stability, the foundation will resist this force in several ways: Rw by its own weight Rp by the weight of the pavement that may exist on the foundation Rf by the lateral friction against the ground Rs by the shear strength by the slab of pavement, if any. Let’s study each of …Read More

Typology of Foundations

Typology of Foundations In general, foundations of typical tensile buildings can be classified depending on the load to be resisted, in any of these types: 1. Vertical pulling load (vertical cable) 2. Leaning pulling load (any cable or guy-rope fixed to the ground) 3. Leaning pushing load (tilted masts, base of an arch, etc.). 4. Vertical pushing load (vertical mast) 5. Bending moment, with vertical and horizontal loads of lesser …Read More

WinTess3 and Foundations

A practical approach As we have seen in the introduction and as we’ll see again in “types of foundations”, there is a fairly large variety of situations in a tensile structure, as far as the foundation is concerned. If we add the varied types of soil we may find in any building: clay, sand, silt, mixtures of these three, rocks, etc, we come to the conclusion that foundations of tensile …Read More

Menu: Foundations

This menu is active only in the state of Analysis. In form finding or patterning, it makes no sense to talk about foundations. To use this feature of WinTess, we need to: have calculated the structure. That is, loads have been applied and balance has been found. have defined the type of soil through the General Data submenu. have defined some nodes as Class 3-Foundation. Normally, WinTess3 automatically defines this way: the ends …Read More