I have just had an upstairs addition project completed by a builder in Northern beaches (Sydney) in Dec 2020. I proceeded with the downstairs reno (with another builder) immediately after upstairs. After the demolition of downstairs walls, I am now horrified to see the supporting structure done by the upstairs builder. in simple, upstairs structure was hold up by four steel beams and all these beams are loaded onto timber structure, rather than brick walls. I asked the engineer who i used to design the upstairs structure. the engineer said it is fine to load the beams directly onto the timber despite the fact that the original structure engineer drawing states clearly that all steel beams need to be loaded onto the brick walls. This structural engineer was recommended to me by the upstairs builder, so i wanted to check here if it is ok to place the beams like the way shown in the pic below. the steel beams are now placed above the yellow beams, and the yellow beams are supported by small timber block vertically.
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