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Container profiles

Over the last 10 years, the production of container frames has changed a lot. In the past, they were mainly welded from closed metallurgical profiles. It is a simple and proven solution, however, it creates significant limitations in the subsequent stages of the production of the entire container. First of all, the profiles are available in commercial lengths set by steelworks, have limited cross-sectional dimensions, cannot be protected from the inside, which accelerates corrosion, and have a large weight, which directly translates into the cost of the entire container. Read more…

Snow load

The snow load on the roof – the rules of determination that can be used in the calculations of the structure of buildings and engineering structures are defined in PN-EN 1991-1-3:2005. According to this standard, the characteristic value of the snow load on the roof is the product of the characteristic value of the snow load on the ground and the appropriate coefficients. Therefore, these coefficients are selected so that the probability of the calculated snow load on the roof does not exceed the probability of the characteristic value of the snow load on the ground. Read more…

Static diagram

Certainly, the design of each structure should start with building of its static diagram. Without question, it is a physical model of an actual structure. Undoubtedly, this model enables the correct (reflecting the reality as much as possible) determination of the internal forces in the elements of a structure. That is why it is so important to properly adopt a static diagram that takes into account the key parameters from the structural point of view (characteristics of materials, geometrical characteristics, loads). Undoubtedly, an error at this stage of design will result in errors at all subsequent stages of calculations (determination of internal forces, dimensioning of elements). Read more…

Wind load

The PN-EN 1991-1-4 standard provides the rules for determining the value of the wind load for use in the calculations of the structure of buildings and structures. Undoubtedly, these rules apply to the entire structure or its parts, elements attached to the structure, e.g. its components, elements of curtain walls and their fasteners, protective barriers and noise barriers. In this text, we will try to offer an insight into the subject of wind load in relation to roofs, focusing in particular on what factors have a direct impact on the magnitude of wind load. According to the Eurocode for wind, the wind load on structures and structural elements should be determined taking into account both external and internal wind pressure. Read more…