Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Take di = 30 mm, d₂ = 50 mm, and P= 45 kN. 0.9 m 125 kN 125 kN 1.2 m Find the average normal stress at the midsection of rod BC. (Input the answer with the appropriate sign.) The average normal stress at the midsection of rod BC Is [ MPa.

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Connections

In steel structures, connections are the members that join two or more steel members. The connections are the most important members of any steel structure, and hence, they are designed more carefully. The majority of the construction cost of steel structures is incurred due to the connections. The design of connections is done as per the recommendations and specifications of the American Institute of Steel Construction (AISC).