The overall measure will be carried out in 3 construction phases. The VGV procedure only concerns the first construction phase.
The order includes the structural planning for the listed Romanesque monastery church in Arnstein. It was between 1176 u. Built in 1180 and inaugurated in 1208. The church is the most important medieval building on the lower Lahn and is used as a parish and church. Abbey church used. The parish is owned by the Seelbach parish. It is subject to the patronage of the state, which is also obliged to preserve the building, this includes the renovation of the "outer shell" (roof, roof truss, facade, masonry).
Measures on the inner shell are independently supervised and coordinated by an architect commissioned by the parish, as well as specialists and restorers.
Church building data: Net floor area approx. 683 m
The services of the contractor include the structural planning according to Part 4 section 1 HOAI for renovation measures at the listed monastery church Arnstein, service phases (LPH) 5-6 acc. Section 51 HOAI, supplemented by special services of LPH 5-8, in particular:
- Execution planning and workshop drawing acc. § 51 Appendix 14. Construction and verification of connections in steel and. Timber construction,
- Services from the service profile of buildings and comparable types, including:
- Drawing up the specifications for room u. Woodwork;
- Vote u. Coordinating the interfaces;
- determination of costs;
- Participation in the service description for static safety measures;
- Checking and evaluating offers;
- Participate in placing an order;
- monitoring of execution;
- Documentation of the construction process, keeping a construction diary;
- joint measurement with the executing company;
- Auditing including checking supplements, etc. Measurements;
- cost control;
- Participate in the organization u. Execution of the acceptance, preparation of the acceptance protocols according to VHB;
- Specialist construction management for structural structural measures and static securing on vaults, masonry, towers and external walls.
A static calculation is available in a certified copy and is the basis of the execution.
A structurally constructive report and a further, comprehensive inventory analysis have already been carried out and include:
- Creation of inventory plans of the building (measurement);
- Environmental pollutant analysis;
- exploration of the ground conditions;
- Examination of the wooden structure and the vaults;
- Damage analysis of installed timber by pests;
- Examination and evaluation of the roof covering.
On the basis of these investigations, a renovation program was developed and coordinated together with the representatives of the client, the user and the monument authorities.
Goals of the renovation:
- upgrading the roof structure;
- Renewal of the entire roof formwork u. Natural slate covering including plumbing;
- stabilization of the structure on vaults;
- Installation of visible stainless steel tension anchors, to absorb the shear forces from the vaults;
- Non-positive filling of the vault cracks and all other cracks with injection mortar.
The services commissioned by the church on the inner shell are partly a prerequisite for the static securing. The present planning was developed with the help of various special experts. In order to enable the simultaneous objective of economical construction work, the construction processes depending on the complex building cubature and the necessary construction site facilities were also taken into account when determining the construction phases. The resulting interfaces are to be coordinated with those working on the inner shell in terms of time and execution.
Total costs of approx. EUR 11.75 million determined for 3 construction phases. In the first construction phase, which is the subject of this tender, both west towers, roofs and outer walls of the west choir and the porch will be renovated. EUR 2.8 million (KG 300-600) gross is available for the measures. Construction is planned from 01/2022 to 12/2023.