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FS49 - Sustainable BIM-driven post-occupancy evaluation for buildings

Written by: CIC Start Online

"Sustainable BIM-driven post-occupancy evaluation for buildings" by Heriot Watt University and Wylie Shanks Architects

SUMMARY

Achieving the CO2 emission target requires better monitoring to building performance and sharing accurate information among the stakeholders. This study aims to investigate the feasibility of using BIM approach within the Scottish governmental departments to adopt a more efficient postoccupancy evaluation methodology. 

The national regulation on energy performance and 'carbonn accounting has asked for a greater consistency of construction information to achieve the CO2 emission target. Therefore, clients (especially the major one "Government") and lndustry should work closely together in developing plans to make the transition to low carbon buildings feasible in order to meet the CO2 emission target over the identified time horizon. Achieving so requires the development and/or refinement of afternative approaches to the procurement of integrated teams to deliver zero carbon building.

Among the new strategies in this area is the p.rinciples of "Soft Landings" which are now targeted to be embedded into contracts and processes to ensure that building performance meets design criteria. ln this context Building lnformation Modelling (BlM) can play a key role in addition to its capability to create more homogenisation of the construction suppiy-chain. ln a recent study, Government (as a prime client to lead the change in the built environment) were advised to mandate the use of BIM for all central proiects with a value greater than t50m. The industry was also advised to work, through a collaborative forum, to identify when the use of BIM is appropriate (in terms of
the type or scale of project), what the barriers to its more widespread take-up are, and how those barriers might be surpassed, leading to an outline protocol for future ways of working. Despite the significant savings derived from adopting the BIM, the BIM adoption should be considered within an overall improvement strategy for the indristry sectors, especially governmental clients.

For the purpose of this study, the Scottish Government Construction clients are capable of significant step changes in helping the market to respond to the requirement of BIM utilisation. A structured and consistent approach can drive a mass improvement in BIM taking-up over a well defined horizon to improve the performance of the government estate in terms of its cost, value and carbon performance. The general aim is to transform the current procurement strategy into a new BIM-driven approach to deliver an environment whereby the Government client would have an estate smarter enough to face a low carbon economy where reductions in operational costs and carbon emissions are targeted.

From this identified general aim, this particular feasibility study has the following objectives:

  1. To identify the key variables of operational and carbon performance affect on the decision process, especially within the Scottish Government as a client, that should be embedded in BIM applications
  2. To identify the information at key stages to ensure consistency of clarity to the supply chain for a new B|M-driven procurement approach


Two focus groups will be arranged for the purpose of data collection. The targeted participants will be key professionals within the Scottish government departments. The study will cover data to be collected from relevant projects available at the time. During the study, data will be collected on: the current use of BIM technology, the view on transforming the current procurement strategy into BIM-driven approach, how BIM technology is used to assess operational and carbon performance, and how the supply chain should be engaged in this process.

Key words: post-occupancy evaluation, BIM

AUTHORS

Dr Ibrahim Motawa, Heriot Watt University

Prof. Phil Banfill, Heriot Watt University

For Wylie Shanks Architects

The outputs of this study will be disseminated in due course.

 

 

 

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