Dare to confront the unknown to invent complete and transverse solutions

It is fundamental for us to approach the complexity of situations by sharing and pooling skills. For each project, it matters to us

It is fundamental for us to approach the complexity of situations by sharing and pooling skills. For each project, we need to create a set of solutions that are closely interdependent and defined by new links that place man at the center of all intentions.

In a dynamic exchange and cross analysis, we aim to bring the most contextual and innovative resolutions to the project. The very constitution of our structure gives us this opportunity to work, just like the use of collaborative digital tools (big data, AI, virtual visits, BIM ...). Benefiting from an engineering gathered and extended to all areas of expertise (structure, fluids, project management, economy, envelope, design studies, infrastructure ...) allows us to go beyond the scope of our specialties and create a synergy in the service of the architectural project, always approached in a unitary way. Without prioritizing any of our specialties, we cultivate this state of mind by leading workshops designed to create links between our agencies and our experts. Our engineering takes part in the project from the preliminary design phases to the execution, focusing on the life of the work, and aims at a global analysis from the upstream phases. This scale of intervention requires a great deal of experience with implementations, materials and systems, and their most intimate behaviors.

Thus, by working according to a method based on collective intelligence, we seek to include each of our projects in the framework of the five major transitions that characterize the sustainable city: humanistic, environmental, energy, digital and economic. Very open and conducive to the emergence of new ideas, this approach allows us to address different degrees of innovation: technical, constructive, methodological, but also social. Indeed, we consider any invention first with regard to uses, desires and the added value it represents for man in his daily life and his practice of space. In this, we are attached to a frugal engineering: go as far as possible with the greatest efficiency and a minimum of means trying to extract the simple complex.

AIA Engineering Expertise 

Reinforced concrete, timber framing, metal structure, mixed metal-concrete and wood-concrete structures, composite structures, rehabilitations, earthquake engineering, ancient and historical monuments, metallo-textiles and stretched canvas, design studies, studies execution.

Foundations and supports, urban, road, rail and maritime infrastructures, civil engineering, classified defense projects.

Project coordination
Building project manager, project management, BIM project management.

Research and innovation
Development of technical opinions, innovation pole and innovation management.

BIM management, BIM coordination, BIM interactive and interoperable design, BIM execution, BIM synthesis.

High currents, low currents, power plants, fire safety, electrical safety, including hospital, building management, communication system, security surveillance system, lighting, lighting, SSI coordination.

Heating-ventilation-air conditioning, smoke extraction, sanitary plumbing and water treatment, special fluids, industrial or medical.

Network overview

Energy and comfort engineering
Thermal comfort, air quality, building insulation, dynamic thermal simulation, fluid dynamics, light-day factor, urban energy networks.

General feasibility and design economics, TCE tendering management, numerical costing models, finishing techniques and TCE description.

AIA Engineering patents

SBB - Mixed wood-concrete system  (2000)
Method of bonding a concrete compression slab to a wooden joist and connectors for the implementation of the method.

FMB - Mixed Wood-Concrete Facade (2009)
Prefabricated façade panel comprising a wooden frame frame and at least one concrete skin, mechanically connected by a plurality of connectors.

SVS - Empty Energy Storage Structure (2013)
A method of storing and restoring energy in cavities integrated into the structure of a building implementing the method.

Cellular Earth Walls - Terreal (Condominium) (2015)
Honeycomb structural element for thermally controlled wall.

BPI connector: stone block i

Citadel of Amiens



François Boutteau Director Nantes Branch