Au Gerüstbau uses MJ scaffolding systems for church projects
“Seeing scaffolding as a challenge” has been part of the company philosophy of Nuremberg-based Au Gerüstbau GmbH for many years. The company has more than 25 years of experience in the scaffolding business, and is managed by Thomas Au, who represents the second generation of the Au family in the business. For many years, in addition to specializing in commercial projects, Au Gerüstbau GmbH has been known in Central Franconia and beyond for its professional scaffolding of churches.
As a result, they were invited to participate in the limited tender for renovating the Lutheran church in Welbhausen (near Uffenheim) by the architects responsible, and were able to win the contract. The beautiful Baroque church with the onion dome was showing wear and tear in its natural stone façade and in the roof area, so the slate roofing needed to be completely replaced.
The difficulties involved in scaffolding the church were: access to the object, the partial integration of the church tower into the church nave, the associated structure that was needed over the nave, and the narrowing of the scaffolding structure over the onion dome. Furthermore, an appropriate level of stability needed to be guaranteed around the top of the church tower, at a height of 20 meters, without anchoring the scaffolding system in this area.
Thus a support structure first needed to be built over the top of the aisle to provide the 15-meter-tall scaffolding on top of it with a firm footing. The solution was a heavy-duty lattice-girder connection constructed alongside the church, up to the first scaffolding section.
The scaffolding in the tower area was built up to a height of 22 meters using MJ UNI 100. After that, another 20 meters of the UNI 70 scaffolding system were used to create a total height of more than 40 meters. The UNI 70 system allowed the scaffolding to be narrowed to follow the individual building structure as needed.
In order to fulfill the structural requirements, horizontal diagonals were installed to provide diagonal reinforcements for the scaffolding structure, and then also vertical diagonals. This was necessary because the scaffolding could only be anchored to a height of 22 meters. In addition to these scaffolding measures, the entire upper section was characterized by the extraordinary self-reinforcing qualities of the MJ UNI 70 scaffolding system. Thus in the last section, more than 13 meters of scaffolding achieved stability without anchoring or additional reinforcements, allowing work to be done safely at a height of more than 40 meters.
Access to the scaffolding was provided through an MJ stair tower with aluminum platform steps.
Overall, a total of about 500 square meters of UNI 70/100 were used in this project, along with 100 meters of lattice girders and 60 meters of consoles. The scaffolding structure will remain in place for three months.