I’ve heard it defined in many ways including BIM is simply a model created in a 3D modeling tool such as Revit all the way to BIM being a collaborative process for designing, engineering and constructing facilities. In actuality the 3D geometry itself is less important to IoT than the data that comes from the model which is very similar to the data that is important to building lifecycle operations including spatial data and asset data. Both of these two types of data provide a framework for the organization and analysis of IoT data in a way that is meaningful to building operations and therefore does provide a basis for considering BIM as a potential component of IoT and how it relates to buildings.
Assuming you meant the data integration and integration with BIM models (2D/3D), I first suggest to pick standardized IoT data framework/ontology that is mostly used in the AEC domain. The biggest challenge so far I experienced in this era, is the different identification of assets/entities in the BIM/IFC files and the things (sensors) in the IoT framework. Once you establish the connection between these, any cloud-based platform will help you host the integration. Second, be sure that the BIM model is prepared appropriately. In most of the case, people want to integrate climatic info of the spaces in the BIM model (perhaps your case is different). So check whether you have space entities defined in your model (most of the time it is skipped). Or if you want to integrate with MEP assets, check whether the system information defined properly. So you can traverse through different assets connected to that system
The problem is that hospital/health, IoT, the actual builing technology, BIM spans over a very broad field. Working and commercially usable platforms are at present (even in research) rather "sectional". You could als think of using a to some exntent mature general "data management platform" and then implant BIM and other needed functionality. Agreeing on common data schemata cross these diverse field and implementing them will in any case bet tricky and time consuming. Since it is for a hospital I assume you need something super secure and privacy preserving, e.g.: https://www.philips.de/healthcare/innovation-wissen/healthsuite/device-cloud - anyhow, interesting question :-).
Construction contracts are the heart of the project and the correct administration of them is directly attributed to the success each stakeholder realises at completion. My theory is that the human element of formulating and administrating the construction contract must be minimised to optimise the process.
An Intelligent Contract (iContract) platform would be the ideal middle man software platform to draw in all data available from IoT sensors and the BIM data and process as the defined contract terms see fit.
I am developing a framework for the successful implementation of intelligent automated contracts in the construction industry. My proposed PhD thesis explores the question of how best to execute intelligent contracts that bring automation to the industry at its core and supply efficiency and value that would force the industry into collaboration out of necessity rather than appeal.