Periodic Reporting for period 1 - BIM4EEB (BIM based fast toolkit for Efficient rEnovation in Buildings)
Période du rapport: 2019-01-01 au 2020-06-30
Buildings account for 40% of energy consumption, for 36% of greenhouse gas emissions and for 55% of electricity consumption, while residential building account for around 68% of the energy consumption in the entire building stock and a significant fraction by low energy performance buildings of second half of the last century. The decrement in energy consumption requires thus the significant acceleration and growth of the renovation market at rates of over 3% over the whole EU building stock, in contrast to the current annual rate of approximately 1%.
Architecture, Engineering and Construction (AEC) industry is already using for new buildings semantically enriched digital models based on Building Information Modelling (BIM). In simple words, BIM allows a shared digital representation of the building to facilitate design, construction and operation processes and decisions.
However, several barriers need still to be overcome for enhancing current BIM implementation to be used for renovation of existing buildings. Due to the complex nature of digital information in BIM, the model creation process for existing buildings is a time consuming and costly process. Moreover, the most significant challenges in BIM as a domain for interoperability are collaboration and scale, handled by a large and complex data model.
The ambition of BIM4EEB project is to foster the renovation construction industry by developing an attractive and powerful BIM-based toolkit able to support designers in the design and planning phase, construction companies to efficiently carry out the work and service companies to provide attractive solutions for building retrofitting overcoming current barriers arising in different stages of renovation processes.
The project targets low energy performance multi-store residential buildings of the second half of the 1900s that account for about 20% of the existing European building stock. These case studies have significant energy retrofit potential and the applied retrofit strategies are scalable and replicable.
Architecture, Engineering and Construction (AEC) industry is already using for new buildings semantically enriched digital models based on Building Information Modelling (BIM). In simple words, BIM allows a shared digital representation of the building to facilitate design, construction and operation processes and decisions.
However, several barriers need still to be overcome for enhancing current BIM implementation to be used for renovation of existing buildings. Due to the complex nature of digital information in BIM, the model creation process for existing buildings is a time consuming and costly process. Moreover, the most significant challenges in BIM as a domain for interoperability are collaboration and scale, handled by a large and complex data model.
The ambition of BIM4EEB project is to foster the renovation construction industry by developing an attractive and powerful BIM-based toolkit able to support designers in the design and planning phase, construction companies to efficiently carry out the work and service companies to provide attractive solutions for building retrofitting overcoming current barriers arising in different stages of renovation processes.
The project targets low energy performance multi-store residential buildings of the second half of the 1900s that account for about 20% of the existing European building stock. These case studies have significant energy retrofit potential and the applied retrofit strategies are scalable and replicable.
In the first 18 months, the project activities have focused on the specification of the efficient renovation process based on BIM usage, the definition of the ontologies relevant in the buildings’ renovation domain, the specification and the development of first release of BIM4EEB toolkit.
The activities started analysing the main stakeholders’ requirements and needs in order to provide the necessary input data for defining the architecture of the BIM management system and for individualizing the most proper existing ontologies.
Ontologies for renovation work of existing buildings have been defined including information to be stored in BIM model for renovation process optimization, renovation workflows representing the connection between activities and entities, and the aspects related to indoor quality and comfort of inhabitants. Additionally performance indicators and guidelines for the assessment of the results of BIM4EEB project and the overall building performance have been defined.
Technical specifications of BIM4EEB toolkit have been completed, the first version of BIM4EEB toolkit has been released and demonstration activities planned.
Project technical activities have been supported by management, communication, dissemination and exploitation activities. BIM4EEB project has been widely communicated, stakeholders have been involved in project activities, and cooperation with other research projects started. Market opportunities and barriers have been identified and first version of business models of exploitable results has been defined.
The activities started analysing the main stakeholders’ requirements and needs in order to provide the necessary input data for defining the architecture of the BIM management system and for individualizing the most proper existing ontologies.
Ontologies for renovation work of existing buildings have been defined including information to be stored in BIM model for renovation process optimization, renovation workflows representing the connection between activities and entities, and the aspects related to indoor quality and comfort of inhabitants. Additionally performance indicators and guidelines for the assessment of the results of BIM4EEB project and the overall building performance have been defined.
Technical specifications of BIM4EEB toolkit have been completed, the first version of BIM4EEB toolkit has been released and demonstration activities planned.
Project technical activities have been supported by management, communication, dissemination and exploitation activities. BIM4EEB project has been widely communicated, stakeholders have been involved in project activities, and cooperation with other research projects started. Market opportunities and barriers have been identified and first version of business models of exploitable results has been defined.
Several efforts have been already devoted to the development of methods and tools for enhancing the implementation of BIM. Until today, these solutions have been often adopted within a fragmented process and especially for new buildings. BIM4EEB is progressing beyond developing an overall system which can be adopted for managing information along the whole building life-cycle in an interoperable way, usable both in public and private works, and developed to be used for renovation processes.
The main methodological and technological advances beyond the current state-of-the-art encompass:
• A comprehensive linked data and ontologies for renovation processes allowing full interoperability among actors and tools.
• A BIM management system - BIMMS - providing reuse features for building data, storage space, aggregation of data coming from different sources (e.g. GIS models, streaming data from sensors, inhabitants direct and indirect preferences, 2D and 3D building models) making data interchangeable, interoperable and providing selected access of building data according to specific users’ profiles.
• Fast mapping of buildings with Augmented Reality tool combining different measurement techniques.
• A standardize data exchange connecting BIMMS with Building Automation and Control Systems (BACS). This will allow developing novel, systematic, and integrated monitoring and performance evaluation approaches which combine the evaluation of user comfort, the technical performance of systems, and user interactions with the building.
• Tools supporting the construction production management to organise, plan and track site operations and record efficiently the as-built data for implementing digital logbooks.
Thanks to data sharing and BIM4EEB toolkit, the renovation process can have a reduction of working time, a decrement in costs and an improved quality control. The integrated BIM-based platform will allow decreasing renovation time by 20%, renovation costs of 15%, energy audit time by 50% and a higher level of accuracy in assessing building conditions, and quality checks during renovation.
Additionally, thanks to a complete availability of building data and a more accurate evaluation of thermal physics properties of buildings, a reduction of maintenance costs are expected while the expected reduction of net primary use of energy is 10% with respect to traditional energy retrofitting.
The impact to the project is manifold and encompass economic and societal areas. Thanks to the more efficient renovation work demonstrated with the adoption BIM toolkit and exploitation strategies, the project will promote the acceleration of the market update of BIM solutions and 50% of renovation business based on BIM for construction companies. The adoption of BIM will increase renovation rates and growth rate for the sector, an increment of high profile workers, and entrance of new SMEs in construction sector. The increment of renovation rate will allow to increase the number of renovated buildings decreasing so energy consumption with benefits for the environment, and increment the quality standards of buildings decreasing the demand of new buildings, thus avoiding further consumption of soils. For public bodies managing social housing, renovation improvements with BIM usage mean direct saving in the renovation and management of buildings stock, and indirect advantages such as less disturbance on fragile people, better living conform at lower costs.
The main methodological and technological advances beyond the current state-of-the-art encompass:
• A comprehensive linked data and ontologies for renovation processes allowing full interoperability among actors and tools.
• A BIM management system - BIMMS - providing reuse features for building data, storage space, aggregation of data coming from different sources (e.g. GIS models, streaming data from sensors, inhabitants direct and indirect preferences, 2D and 3D building models) making data interchangeable, interoperable and providing selected access of building data according to specific users’ profiles.
• Fast mapping of buildings with Augmented Reality tool combining different measurement techniques.
• A standardize data exchange connecting BIMMS with Building Automation and Control Systems (BACS). This will allow developing novel, systematic, and integrated monitoring and performance evaluation approaches which combine the evaluation of user comfort, the technical performance of systems, and user interactions with the building.
• Tools supporting the construction production management to organise, plan and track site operations and record efficiently the as-built data for implementing digital logbooks.
Thanks to data sharing and BIM4EEB toolkit, the renovation process can have a reduction of working time, a decrement in costs and an improved quality control. The integrated BIM-based platform will allow decreasing renovation time by 20%, renovation costs of 15%, energy audit time by 50% and a higher level of accuracy in assessing building conditions, and quality checks during renovation.
Additionally, thanks to a complete availability of building data and a more accurate evaluation of thermal physics properties of buildings, a reduction of maintenance costs are expected while the expected reduction of net primary use of energy is 10% with respect to traditional energy retrofitting.
The impact to the project is manifold and encompass economic and societal areas. Thanks to the more efficient renovation work demonstrated with the adoption BIM toolkit and exploitation strategies, the project will promote the acceleration of the market update of BIM solutions and 50% of renovation business based on BIM for construction companies. The adoption of BIM will increase renovation rates and growth rate for the sector, an increment of high profile workers, and entrance of new SMEs in construction sector. The increment of renovation rate will allow to increase the number of renovated buildings decreasing so energy consumption with benefits for the environment, and increment the quality standards of buildings decreasing the demand of new buildings, thus avoiding further consumption of soils. For public bodies managing social housing, renovation improvements with BIM usage mean direct saving in the renovation and management of buildings stock, and indirect advantages such as less disturbance on fragile people, better living conform at lower costs.