engleski

Behaviour of Cyclic Loaded Joint Made With Glued- in Rod in Corner of CLT Frame

During the design of structures in seismic areas, solution which provides increase of joint ductility and seismic capacity with minimal increase of structural mass is often required. Current research at the University of Zagreb, performed in co-operation with the University of Ljubljana, is leading to the development of hybrid panel made of CLT frame with high-ductility joints and laminated glass infill, which, in addition to strength and stiffness, is also characterized by high level of seismic energy dissipation. Although seismic behaviour of this element significantly depends on dimensions of individual panel segments, as well as on material physical characteristics, bearing capacity is predominantly defined by behaviour of girder-column joint. Previous research has determined the optimal type of joint – with glued-in rod. Further research, done under CSF project VETROLIGNUM (IP-2016 3811), is presented in paper. The main goal was to define how redistri-bution of internal forces and bending moments as well as stiffness of elements impact on bearing capacity and ductility of the joint. Samples with different rod diameters as well as with different position of column fixed restraint were tested un-der cyclic loading. Results are presented and discussed. Numerical and analytical model are presented as well as the model of the stiffness degradation.

glued-in rod ; CLT ; frame ; seismic ; Eurocode 8 ; stiffness decrease ; bearing capacity ; analytical model

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