Germany – Structural shell work – Zentrale Grundschule Generalsanierung BT B, Rohbauarbeiten mit Erdarbeiten, Mikropfahlgründung und Abbrucharbeiten

Site setup, utility connections, traffic control. Earthworks: Excavation of the building pit 855 m³, excavation of the pipe trench 120 m³, drainage work: 450 m of underground pipes, 4 manholes, pumping station, 95 m of drainage. Underpinning work, also inside the building 25 m³, 38 micropiles, 10 of which are inside. Demolition of light wells, ducts, etc. in the exterior area. Structural work in the existing building, main measures: - New fire escape stairwell on the exterior facade, ground floor to first floor - New main stairwell inside the building, basement to first floor - New elevator shaft inside the building, ground floor to first floor. These measures, including shoring, demolition work, new reinforced concrete walls, elevator shaft, columns and beams, are integrated into the existing building. Creation of new door openings, structural reinforcements in the facade area. Structural steel 60 tons, 6700 existing reinforcement connections. Installation work for electrical and lightning protection.