What are the tensile, shear, Xu Yun, and Xu Yun deflections of 20a I-beam?
Standard design of steel structure is the total probability method, the design strength of Q235 steel plate is 215N/mm2 tensile shear stress, the load is 125N/mm2, the situation is not clear when don't use this!
According to the probability method of allowable value:For materials with Q235B i-beam. The tension and compression allowance is 157MPa; the shear zone is 90-100MPa; the allowable deflection is 1/500 of the span.
Check "code for steel structure design" Q235, I remember the tensile resistance is 215N/mm2, and the shear resistance is 125N/mm2. allowable deflection. What are you doing here? If the beam is 1/400
