Seismic design of floor–wall joints of multi-storey CLT buildings to comply with regularity in elevation |
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| Authors: | Davide Trutalli Luca Pozza |
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| Institution: | 1.Department of Civil, Environmental and Architectural Engineering,University of Padova,Padua,Italy;2.Department of Civil, Chemical, Environmental and Materials Engineering,University of Bologna,Bologna,Italy |
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| Abstract: | The effects of irregularity in elevation of cross-laminated timber buildings have not been fully analysed in literature to provide useful information for the design. In this work, a number of building configurations, regular or irregular in elevation, characterized by a different arrangement per storey of the floor–wall joints have been analysed by means of non-linear dynamic analyses. Comparative results in terms of ratio between the behaviour q-factor of the investigated irregular configurations and that of reference regular ones, show that less dissipative capacity can be expected if the building is irregular due to a disequilibrium among storeys between the actual and the required strength provided by the floor–wall joints. A correlation method to estimate the behaviour q-factor for perfectly regular cross-laminated timber buildings is here presented and extended to in-elevation irregular ones. A new empirical formulation to assess the reliable corrective factor accounting for the irregularity in elevation of cross-laminated timber buildings, according to Eurocode 8 provisions, is also proposed. A final discussion about the implications of in-elevation irregularity on the building design is reported. |
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