Home > categories > Minerals & Metallurgy > Steel Channels > Use the No. 10 channel steel as the crossbeam, the span of 2 meters, the load is 300kg. How about the selection and the type of the channel steel? If not, what number should I use?
Question:

Use the No. 10 channel steel as the crossbeam, the span of 2 meters, the load is 300kg. How about the selection and the type of the channel steel? If not, what number should I use?

The base is a fixed support, and the load is evenly distributed at three points, respectively, at 50010001500 points and three points, the base is rigidly fixed, and the top is connected and fixed

Answer:

These problems are related to the calculation of the checking and checking results. It is better for you to draw a diagram to explain the above.
To know the situation of the beam support to determine the items to be checked, how about the channel support?
The stability of channel steel can not be checked, and the flexural strength of channel steel is checked only. The following bending moment diagram can be obtained by calculation8 =Mmax/ (gamma Wx) +N/A=1875N - m/ (1.05*39.7cm - <[f]=205N/mm - +0/12.74=45N/mm fand), to meet the requirements.The Mmax in the upper form is derived from the diagram, and is computed by itself as 1875N, m=1875000N, mm;Gamma cross-section plastic development coefficient, 1.05;Wx No. 10 steel section modulus, look-up table, Wx=39.7cm =39.700mm fand fand;N steel axial force, 0;A channel section area, look-up table, A=12.74cm L.

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