02 januari 2019

Realtime steering on the environmental impact in BIM with ABT's Environmental Impact Monitor

Determine the environmental impact of complete building structures with a press of a button and actively steer on cleaner constructions! This is possible with the Environmental Impact Monitor (MIM) developed by ABT.

Environmental Impact Monitor

With the MIM, the carbon footprint and the shadow price of the modeled structure can be monitored real-time in Revit. During the design of the structure, the use of materials – and the associated CO2 emissions and shadow price – of various design options can be followed continuously.

How does it work?

For all construction materials and construction elements, the shadow price and carbon footprint were determined and included in a database. This information is linked to the environmental database and self-developed tools, such as the ABT concrete tool (which calculates the environmental impact of a reinforced concrete construction). The Environmental Impact Monitor links these environmental data to the 3D BIM model. The unique thing here is that data processing takes place in realtime. Thanks to the clear user interface of the MIM tool, the results are obvious and insightful.

Afbeelding: Jeroen-MIM-blog-afbeelding in tekst 1

Shadow price

In addition to the carbon footprint, the MIM monitors the shadow price – both in absolute totals and per year. The shadow price includes - in addition to the carbon footprint - more environmental effects such as human toxicity, ozone depletion and acidification. The shadow price corresponds to the environmental performance calculation. The results from the MIM tool can be used directly for an MPG calculation (Dutch government demands a MPG calculation per January 2018), BREEAM certification and the GPR calculation.

Steering during design

By subcategorising the construction elements, it is clear which components have the greatest contribution to the environmental impact. For example, it is possible to control the environmental impact of the supporting structure. The 3D models that have been assembled using Revit are a (steering) tool. The material savings and environmental benefits realized during the design process are measurable by this method and are reflected in the carbon footprint and shadow price of the building.

During the design of the structure, the minimum environmental impact of the structure can be continuously steered by determining the impact of different design options. This can be done, for example, by adapting the concrete mix to a green variant at the building level. Changes in the design can be recalculated with a press of a button.

Of a total design, the structure takes up about 60% of the material use. The MIM ensures that this part can be determined. With the further development of the tool – by adding the environmental impact of architectural and installation technical components to MIM – it is possible to obtain an overall picture of the environmental impact.

Tightened limit value MPG

From January 2018, the limit value for the MPG was set at € 1.0/m2 for office and residential buildings. For tenders, tightened limit values are already regularly included. It is therefore necessary to be able to steer this. By using the MIM, the design can be steered to not exceed the limit value.

Achieving sustainability ambitions

With the aid of the MIM, the MPG has already been determined for many projects. As a result, a large database has already been built up. ABT can take into account the following issues in the design process:

  • Which type of construction in the use of materials creates a higher MPG: steel, concrete or wood?
  • What is the difference between the average concrete mix design and a greener version?
  • What is the influence of the building shape?
  • Of which changes to the design can the MPG score benefit?

 

Development does not stop with the MIM

The MIM calculation is part of the integral advice in the field of sustainability and is a logical next step in the sustainability developments at ABT. The MIM links up with material level advice, which also includes subjects such as circularity, adaptability and flexibility.

Are you wondering how the MIM can contribute to achieving the MPG for your project? Then contact specialist  Jeroen van Kuijk or the other specialists and MIM team members: Michiel Van Der Elst and Lonneke van Haalen.

During the Trends Digital Pioneers Award 2018, ABT won an Award in the category Business Support & Logistics for the development of the Environmental Impact Monitor.

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