University Preclinical Center Regensburg

• Gross cubic capacity (BRI): 124,500 m³
• Gross floor area (GFA): 27,650 m²
• Above ground: 1-4 full storeys
• Underground: 1-2 full storeys

• Construction site installation from 28.11.2023 - 15.12.2025
• Special civil engineering from 08.01.2024 - 03.07.2024
• Shell construction work from 04.03.2024 - 15.12.2025

The core working hours on the construction site are as per the Ed. Züblin AG construction site regulations:

• Monday to Friday 07:00 to 17:00
• Saturday 07:00 am to 12:00 pm
• There is generally no work on Sundays and public holidays.

The extensive use of prefabricated parts (beams and stairs) means that a shorter construction time can be achieved. The volume of waste is also reduced thanks to the prefabricated orders.

In close cooperation with the client, planners and the formwork supplier, the required material is planned in advance and optimized so that the individual elements can be used as often as possible. This results in a reduction in delivery routes, reduced space requirements on site and the minimization of additional building materials such as construction timber, which is otherwise often only used once.

By purchasing and supplying prefabricated, i.e. pre-bent and cut-to-size reinforcement, both noise emissions and reinforcement waste can be largely avoided. Optimized deliveries also reduce the primary energy requirement.

When selecting the concrete supplier, the focus was already on regionality so that delivery routes can be shortened and any waste can be almost completely avoided. In order to be able to coordinate the concreting in the best possible way, the call-offs are made using a digital application. The delivery quantities can be coordinated with the concrete pump, particularly for large-scale concreting operations, thus reducing the waiting times of the concrete mixers. Production times are optimized and noise emissions are reduced.

As part of the lean approach, a production plan with call-off dates (e.g. insulation) was created. Construction production planning is detailed on a weekly basis and adapted to actual production progress. Changes in the construction process are constantly taken into account and just-in-time deliveries can be better implemented. Repeat orders and new orders due to late changes to the plan are avoided.

The project is being implemented in the vicinity of neighboring buildings, which have high demands in terms of construction site impacts due to the ongoing operation of highly sensitive research and teaching. The impact of the construction site will be avoided or reduced as far as possible by the selected methods. For example, low-vibration and low-noise foundation engineering methods were used for the foundations. This was a key aspect of the improvement in the alternative foundation concept proposed by Züblin. Contamination of construction roads and adjacent public traffic routes is cleaned every working day with a sweeper, including water spraying to prevent dust. Necessary grinding work is reduced to a minimum and only carried out with direct extraction.

The CMC method from Menard GmbH was used as part of the special foundation engineering work, the foundation solution was optimized and the CO2 requirement of the construction project was reduced as a result. The process was selected taking into account the global warming potential (t eq CO2).

Construction operations studies and comparative considerations for the most energy-efficient project execution possible, such as the selection of a large concrete bucket to reduce the number of crane lifts, are being implemented.