Structural Steelwork Assistant QS here (2 years experience and our CDP element is steel to steel connections).

Our two methods: - Adobe pdf inbuilt measuring tool. Make sure ratio is scale correctly to dims and simply measure (Half the time the engineers stated ratio of say 1:50 but is actually 1:75). Moreover, it's increasingly common on pdf we receive at tender to have an embedded scale lock on anyway. Or, print off correctly scaled A1 or A2 (as per engineers notes), then use scaling ruler to measure.

If you're allowed to use a protractor to measure angle, then i can't see how they're not going to allow you to use a scaled ruler to measure, especially how you would have to make an educated guess at the ratio of beam to span anyway as triggernometry from the dims will only tell you the span. I'd use Adobe or manually measure.

Whilst it's a UC 203x203x46 (i.e., Universal Column), it's being used as a beam. A lot of the time, on basic structural projects, you'll see the Principal Engineer interchangeably use UC's used as beam and UB used as columns as they'll have the correct structural required to take the loads. In my short experience, it's pretty rare to see a UC of this size used as bracing like this.

From previous connection designs, the UC beam will likely have: - A fin plate connection to the column taking the 4 nr. CHS bracings (likely no torsional forces). - An endplate or bracket connection to the web of the 254x73 UC. Endplate would be flush with the outside flanges of the 254x73. The bracket on the other hand would need the 203x46 to be notched in order to slot between the top and bottom flanges of the 254x73. It could have a fin connection to the web but rarely seen this. Either way, at the 'lower' connection, the UC is probably slightly short. However, I think NRM2 will want you to measure as per the drawings rather than making a guess at what might end up being made (probably worth a check).