Question

A rolled steel Joist of I-Section has flange length of 300 mm. wide and 20 mm thick with a web thickness of 20 mm. and overall depth of I-Section is 600 mm. If this beam carries a UDL of 40 KN/m over the simply supported beam of span 10 m, find the maximum stress produced in the beam

Answer 1

Answer:

describe the location of major is land using the gratitude

Answer 2

Maximum stress produced in the beam is 15.118N/mm².  

Explanation:  

From bending equation  

I /M  =  σ/y  =  R /E  

​\bar{y}=\frac{\sum{y_iA_i}}{\sum{A_i}}=\frac{6960000}{23200}=300mm    

∑Fy =0  

Ra +Rb =400  

∑M  A =0  

10Rb=2000⇒ Rb=20010R b=2000⟹Rb =200  

Ra=400-200=200  

Maximum moment occurs at C  

MC=500  

I_{xx}=1.303*10^9    

σ_max=115.118N/mm².