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- Title
MONITORING PROGRAMM CRITERIONS DEVELOPMENT FOR EVALUATION OF GROINED MASONRY ARCH STABILITY.
- Authors
Korjakins, Aleksandrs; Bondars, Kaspars
- Abstract
The program for monitoring of cracked arch shell structure of Riga Dome cathedral has been developed for definition of masonry arch stability criteria. Settlement of supports induced strains in masonry arch shells, leads to stress redistribution and crack forming in masonry shell structures. Deformation criteria are developed for safety exploitation of heritage masonry structures. Three-dimensional scanning of arch structure by means of 3D laser scanners has been done and was used for geometric modelling of masonry arch shell. Previously accomplished monitoring data were used for developing monitoring program to define unequal settlement of the supports. Monitoring of Riga Dome cathedral support settlements has been done to define settlement inequality and obtained results have been used for computer modelling of deformed structure shape tasking in account existing cracks in the masonry structure. Monitoring of existing cracks vy mean twenty one free of temperature effects optical fibre sensors of SOFO type are performing now for deformations measurement with aim of definition the safe exploitation limits. Algorithm of modelling the safe exploitation criteria for heritage has been developed using multilevel analysis of masonry shell.
- Subjects
BUILDING maintenance; MASONRY; LASERS; SCANNING systems; CATHEDRALS; MAINTENANCE &; repair of building foundations; DETECTORS
- Publication
Telecommunications & Electronics, 2008, Vol 24, Issue 9, p25
- ISSN
1407-8880
- Publication type
Article