Abstract
Different traditional roof structures have been developed in various regions of
Austria. Despite fires, wars, degeneration and demolition, a great number of these roof
structures (some dating back as many as six hundred years) have stood the test of time.
To perform a structural analysis, a detailed inspection of the as-built structure, incorpo-
rating geometry, joints, strength, support conditions and possible damages of the struc-
ture, is essential.
The structural analysis of ancient roof structures is full of difficulties and uncer-
tainties. Consider, for example the reference object, a "Grazer Dachstuhl", which
demonstrates that the representation of the spatial load-carrying behaviour and the
determination of flexibilities and eccentricities of joints are both time-consuming and
problematic. However, both effects highly influence the results due to the fact, that
ancient roof structures represent highly statically indeterminate systems. A realistic
reconstruction of the load-carrying behaviour of these hybrid structures is only possible
when the mechanical behaviour of the joints is considered.
In general, ancient roof structures are redundant, and thereby robust, structures.
As a result of load-redistributions, the beams and joints are able to keep up the capacity
of the whole structure, despite of frequent and partial damage.
Austria. Despite fires, wars, degeneration and demolition, a great number of these roof
structures (some dating back as many as six hundred years) have stood the test of time.
To perform a structural analysis, a detailed inspection of the as-built structure, incorpo-
rating geometry, joints, strength, support conditions and possible damages of the struc-
ture, is essential.
The structural analysis of ancient roof structures is full of difficulties and uncer-
tainties. Consider, for example the reference object, a "Grazer Dachstuhl", which
demonstrates that the representation of the spatial load-carrying behaviour and the
determination of flexibilities and eccentricities of joints are both time-consuming and
problematic. However, both effects highly influence the results due to the fact, that
ancient roof structures represent highly statically indeterminate systems. A realistic
reconstruction of the load-carrying behaviour of these hybrid structures is only possible
when the mechanical behaviour of the joints is considered.
In general, ancient roof structures are redundant, and thereby robust, structures.
As a result of load-redistributions, the beams and joints are able to keep up the capacity
of the whole structure, despite of frequent and partial damage.
| Original language | English |
|---|---|
| Title of host publication | Conservation of Heritage Structures |
| Subtitle of host publication | using FRM and SHM |
| Place of Publication | Vancouver |
| Publisher | University of British Columbia |
| Pages | 481-494 |
| ISBN (Print) | 978-0-88865-883-8 |
| Publication status | Published - 2010 |
| Event | 3rd International Workshop on Civil Structural Health Monitoring : CSHM-3 - Ottawa, Canada Duration: 11 Aug 2010 → 13 Aug 2010 |
Conference
| Conference | 3rd International Workshop on Civil Structural Health Monitoring |
|---|---|
| Abbreviated title | CSHM-3 |
| Country/Territory | Canada |
| City | Ottawa |
| Period | 11/08/10 → 13/08/10 |
Treatment code (Nähere Zuordnung)
- Theoretical
- Review