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An investigation of strengthening of historical masonry constructions by steel skeleton

Küçükdoğan, Bilge
Historical masonry structures are important cultural assets which reveal the social, archaeological, aesthetic, economical, political, architectural and technical features of their times. Within the course of the time, the structures have been exposed to the destructive effects of the nature and the man. Some has been able to survive somehow and others were totally ruined. Most of the remained structures are in vulnerable condition to upcoming effects and for the continuity of their presence, structural strengthening applications are needed. A variety of applications are used with different levels of respect to original fabric and different extents of intervention within the principles of international charters that regulate the intervention on historical monuments. In this study, a method of strengthening for the historical masonry constructions is developed in a general sense by the use of steel skeleton systems. In the proposed methodology, it is aimed to approach the intact structural conditions as much as possible in the strengthened structure. For the study a 3D model is created to compare the behaviors of the intact and the modified structure. In the modified model some structural elements are replaced by the steel skeleton system as a strengthening application. The behavioral investigation of the two models is performed in the finite element platform. Finally, it is certified that this methodology successfully efficient in approaching the original intact condition of the structure under concern as well as complying with the restoration principles.