What is the calculation of the beam?
The calculation of the beam is the measurement of the tension and deflection of the structural beam when the load is applied to it. Many factors contribute to the ability to withstand bending, such as beam properties, loads and supports. Calculating the load of a single beam load using the Euler-Bernoulli beam equation is straight, but in most practical applications the beam software is used. The beam calculations are used to ensure safety and prevent excessive construction in various fields such as construction and air aeronautics.
It is necessary to calculate the beam load to form structures with the lightest and cheapest materials in meeting safety requirements and maintaining aesthetic quality of the structure. The whole discipline of structural engineering is devoted to this analysis and design, which ensures that the roofs are not under the weight of snow, that underground parking garages are safe and skyscrapers built along the fault lines meet safety requirementsearthquake. The calculation of the beam also has its application in mechanical engineering in testing the resistance of the load of individual parts of the machine, such as the load that the wing of the aircraft lasts before the development of potentially dangerous voltage. Finally, the architects must consider the deformation of the beam when building and renovation of houses with the construction of post and beams and when considering the visual impact of flabby floors, roofs and balconies.
One of the most important factors in calculating the bearing capacity of the beam is the selection of materials. Typically, beams are made of wood, steel, reinforced concrete or aluminum. Each material has a different tendency to distort elastically, called the elasticity module, which refers to the ability of the material to step back to the site. In its yield M, the material will be plasticically deformed and after removal of the applied force maintains deformation.
the shape of the cross -section of the beam is the second characteristic that is consideredVana for calculation of beam. The beams can be rectangular, round or hollow, as well as to have many types of side, such as I-Peppers, Z-Ppsky or T-Pansky. Each shape has a different moment of inertia, otherwise known as the second moment of the area that predicts the rigidity of the beam.
The force of the unit is another parameter used in the calculation of the beam and depends on the type of load. Dead loads are simply the weight of the structure and stored or living loads are forces that the structure will be exposed occasionally, such as snow, operation or wind. Most loads are static, but special attention must be paid to dynamic burden, earthquakes, waves and hurricanes, which are repeatedly applied for a longer period of time. The load can be distributed, usually evenly or asymmetrically, drought such as snowfall or a pile of dirt. It can also be concentrated at a point, centrally or at different intervals.
Border conditions for the calculation of the beam depend on the type of beam support. The beam can simply be belowSailed at both ends, as a floor beam between two load bearings. It can be brackets or supported at one end, as a balcony or wing of the aircraft. The border conditions apply to all points along the length of the beam.
The relationship between the beam deflection and the static load is described by the Euler-Bernoulli beam equation. Other equations, Euler-Lagrangea's beam equation, describe this relationship for dynamic loads, but static approximation is usually used because of the complexity of its application. The deflection, bending moments and the shear force of the beam can be inferred. In practical settings, stress charts are used to summarize this information and indicate the introduction of common materials that meet the safety of the well -known load. For more complicated applications, the rays calculators are easily accessible on the company website and as accessories for software for computer design added (CAD).