Multi-storey construction with room modules - Holistic view of a sustainable construction method; Sub-project 2: Development of sustainable building technology and building physics solutions and recyclable processes

Overview

In the research project, an innovative room module system for multi-storey buildings is being developed to market maturity. The focus is on sustainable construction with resource-conserving raw materials and a recyclable construction process from planning to production, assembly and dismantling. The system consists of a primary supporting structure made of reinforced concrete and a secondary supporting structure made of wooden modules (“EcoBoxes”), which are pushed into a shelving system. The project is designed as a BIM project, with proof of sustainability through Life Cycle Analysis (LCA) calculations.

Research questions

  • How can a reference process model for prefabrication and logistics be developed on the basis of lean principles and modular approaches?
  • How can construction and logistics processes be modeled and linked to sustainability indicators?
  • To what extent do parameters such as geometry, weight and installation sequence influence the control of prefabrication and logistics processes?
  • How can means of transportation and logistics concepts be optimally defined and implemented?
  • How can BIM be used to define processes for planning, prefabrication, logistics, construction and dismantling in order to return materials to cycles and optimize sustainability?
  • How can moisture, thermal and sound insulation in modular timber construction be investigated and optimized in real terms?
  • Which sustainable heating, ventilation and cooling systems are the most efficient and resource-saving for modular timber construction?

Scientific approach and methods

Logistics:

Investigation of the prefabrication of standard elements with a focus on modularity and sustainability. Production and logistics processes are analyzed and key figures for process evaluation are defined. Material flow and provisioning concepts (just-in-time/sequence) are validated in the real laboratory.

BIM:

Development of building data models to simulate climate engineering and life cycle assessments. Data covers the entire life cycle, with a focus on CO2 reduction and material recycling.

Building physics:

Investigation of moisture influences, thermal bridges and sound insulation. Analyses are carried out on modules and façade elements as well as through preliminary tests and mock-ups.

Climate systems:

Investigation of efficient heating and cooling systems such as monosplit systems and infrared heaters, with tests on comfort and energy efficiency on real modules.

Targeted results

Logistics:

  • Efficient, standardized modules/assemblies.
  • Reference process model with key figures.
  • Validated material flow and provisioning concepts.

BIM:

  • BIM goals and use cases for sustainable construction.
  • CO2 reduction and material recycling concepts.
     

Building physics:

  • Optimized façade elements and building physics for moisture, thermal and sound insulation.
  • Validated sound transmission models.

 

Climate systems:

  • Suitable heating and cooling systems for modular timber construction, optimized in practical tests
ManagementProf. Dr.-Ing. Berndt Zeitler, Prof. Dr. Andrea Lochmahr, Prof. Dr.-Ing. Steffen Feirabend, Prof. Dr. Dan Bauer
PartnerEd. Züblin AG
Grant No.2221HV079B
Programme Funding Program for Sustainable Renewable Resources of the Federal Ministry of Food and Agriculture
Duration01.09.2024–31.08.2027

 

Team