When we place a beam, we need to consider several factors. The major one is to ensure that the beams do not clash with any of the aesthetical members such as the Cladding, Roof sheets, wall panel etc.
In this figure.1 The engineer has provided a UC150*37 beam as 1B30 to support the external beam at perimeter and stud wall. If we fix the beam as per the architects specified location it will clash with the external wall finish (NASAHI WALL) by 40mm which is shown in Figure.2. We can not move this beam from its location because the supporting columns are hidden inside the walls for the aesthetic purpose by Architect.
So we have no choice but to rather change the beam profile, This condition was explained to the Engineer and Architect by our detailer.
The requirement was to change beam profile to be concealed and at the same time support the framework, thus was modified to PFC 200*75.
Always be vigilant about these factors to avoid major mistakes.
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