neobjavljeni prilog sa skupa
The major damage to the buildings in Zagreb's Lower downtown caused by the earthquake is partly the result of the way the timber ceilings were built, which are mostly not connected to the masonry walls on which they rest. In this way, they do not have the properties of rigid diaphragms, which, due to the effect of an earthquake, leads to the loss of the integrity of the construction.
In the paper, we consider the possibility of strengthening timber ceilings with regard to the significant requirements of preserving cultural heritage, and present the results of selected types of reinforcement. The considered types of reinforcement are: reinforcement of the timber beams with a concrete compression slab, reinforcement of the timber beams with wooden elements - OSB boards, and reinforcement with steel elements.
Regarding the possibility of implementation, a conclusion was given on the chosen method that meets the given requirements in terms of horizontal stiffness and the preservation of the cultural and historical heritage of the downtown core.
Zagreb earthquake, timber ceilings, horizontal stiffness, seismic analysis
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