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ECCREDI - PRÉSENTATION MAI 2020

Abstract of the presentation given during
the General Assembly of ECCREDI, May 13, 2020

BIMplement (https://www.bimplement-project.eu/) is developed within EASME H2020 project. It aims at improving building energy efficiency, and specially at bridging the gap between expected theoretical energy consumption calculation and real on-site energy efficiency. The answer developed with BIMplement to this issue is to have building companies to use the project BIM model, on the construction site, in order to implement the project as identical as possible to the initial design.

  • On the construction site, building companies' workers will not participate in the design of the project BIM model, but they will FIRST use the project BIM model to get a better view of the project with the help of freeware viewers instead of working only with 2D paper plans

  • Then, they can use the communication and exchange tools for a better collaboration cross level (within the company) and cross-trade (with other batches and other stakeholders).

     same project, 2D plans BIM model

  • Once workers can manipulate the model with a viewer, they can have access to technical documents that have been linked to the model by design offices, and possibly, enrich the model with documents they can attach to it (quality-control sheet, picture of implemented work...).

  • And finally, they can participate in the creation of an as-built BIM model (link document about the real product laid on site, include a note with the colour and brand of wall painting, report the change of place of a device ...)

  

instruction guide linked to a BIM object

Following the implementation of training sessions on 15 real "rather small" projects in France, in which mostly SME and craftsmen were involved. The findings are the following:

  • most French building companies are not interested in BIM use and BIM process ... because communication on BIM is mainly on complicated and costly, and directed toward design only, and because BIM process is rarely presented,

  • French building companies that uses BIM model to answer calls for bid, or sometime design execution models, never show the model to their on-site workers,

  • in France, clients' BIM specifications are often poorly drafted, and almost always directed toward design only, but neither execution, or event facility management,

  • as a consequence, project manager BIM models are made for design purposes only, and builders get only 2D paper plans, even when building companies design a trade BIM model !

  • because BIM models are used only within and for design teams, the BIM models are often poor, BIM objects are misinformed and misclassified, BIM process is rarely clearly defined,

The proposals, partially tested on real sites, aim at helping building companies to improve their on-site implementation practices thanks to the use of BIM models adapted to their specific needs :

  • design different types of training sessions for building companies managers and on-site workers, to view, manipulate and use freeware BIM viewers (as presented in the previous paragraph),

  • create a skill level assessment tool (mainly for trainer, but can be also a self assessment tool) that indicates for each stakeholders, not only building companies, but also clients, BIM managers, project manager, their BIM skill level, ranging from 0 to 5.
    In France, most companies are level 0 or 1, and training sessions have been designed to reach level2, which correspond to abilities presented in the previous paragraph,

  • organise large scale awareness campaigns toward owners and promoters to improve BIM specifications to improve data quality of BIM models, and impose use of BIM models on the work site and implementation by skilled workers,

  • ask project manager to make sure their models have been checked, information data have been filled up and classified, and that all needed technical documents have been linked so to facilitate on-site implementation,

  • convince project managers to involve building companies in the BIM process, and thus set exchanges with them right from the launch of call for tender and during the execution phase,

  • use BIM viewers during site meeting, to explain who to manage specific cross-trade issues, to show technical documents that have been linked to the model,

  • suggest industrial companies to include in their BIM objects such documents as technical and implementation guides, and type of skills needed for implementation.