A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXPERIMENTAL AND NUMERICAL SEISMIC RESPONSE OF MULTI-STOREY POST-TENSIONED TIMBER FRAMED BUILDINGS WITH SUPPLEMENTAL DAMPING SYSTEMS
This doctoral project aims to contribute to advancement of the research in the field of innovative and resilient timber buildings with high seismic performance and minimum environmental impact in a green and sustainable way. Recent seismic events have raised questions about the adequacy of the current seismic design in code provisions. In modern seismic codes, the performance objectives are expressed in terms of life safety of the occupants and according to capacity design rules a certain damage level of structures is accepted under strong earthquakes. The resultant seismic damages are often difficult and financially prohibitive to repair. In order to significantly reduce structural and non-structural damage and avoid high economic loss, in the last decades research studies focused on the development of low damage design and technologies. In this thesis, seismic design and performance of multi-storey post-tensioned timber framed buildings with different dissipative systems have been investigated in order to develop new low-damage construction systems for high seismic areas. An extensive experimental campaign was performed at the structural laboratory of the University of Basilicata (Italy), in collaboration with the University of Canterbury (New Zealand), considering a three-dimensional, two-third scale, three-storey, post-tensioned glulam timber frame building. Different testing configurations were considered: i) the bare timber frame with post-tensioning only at the beam-column connections (free rocking); ii) the post-tensioned timber frame with dissipative devices at the beam-column and column-foundation connections (dissipative rocking); and iii) the post-tensioned timber frame with dissipative bracing systems at all storey (dissipative bracing). The seismic response of test specimen was investigated through unidirectional shaking table tests under consecutive ground motions at increasing PGA intensities, while the cyclic behaviour of hysteretic dampers was characterized by means of quasi-static tests. In ...
EXPERIMENTAL AND NUMERICAL SEISMIC RESPONSE OF MULTI-STOREY POST-TENSIONED TIMBER FRAMED BUILDINGS WITH SUPPLEMENTAL DAMPING SYSTEMS
This doctoral project aims to contribute to advancement of the research in the field of innovative and resilient timber buildings with high seismic performance and minimum environmental impact in a green and sustainable way. Recent seismic events have raised questions about the adequacy of the current seismic design in code provisions. In modern seismic codes, the performance objectives are expressed in terms of life safety of the occupants and according to capacity design rules a certain damage level of structures is accepted under strong earthquakes. The resultant seismic damages are often difficult and financially prohibitive to repair. In order to significantly reduce structural and non-structural damage and avoid high economic loss, in the last decades research studies focused on the development of low damage design and technologies. In this thesis, seismic design and performance of multi-storey post-tensioned timber framed buildings with different dissipative systems have been investigated in order to develop new low-damage construction systems for high seismic areas. An extensive experimental campaign was performed at the structural laboratory of the University of Basilicata (Italy), in collaboration with the University of Canterbury (New Zealand), considering a three-dimensional, two-third scale, three-storey, post-tensioned glulam timber frame building. Different testing configurations were considered: i) the bare timber frame with post-tensioning only at the beam-column connections (free rocking); ii) the post-tensioned timber frame with dissipative devices at the beam-column and column-foundation connections (dissipative rocking); and iii) the post-tensioned timber frame with dissipative bracing systems at all storey (dissipative bracing). The seismic response of test specimen was investigated through unidirectional shaking table tests under consecutive ground motions at increasing PGA intensities, while the cyclic behaviour of hysteretic dampers was characterized by means of quasi-static tests. In ...
EXPERIMENTAL AND NUMERICAL SEISMIC RESPONSE OF MULTI-STOREY POST-TENSIONED TIMBER FRAMED BUILDINGS WITH SUPPLEMENTAL DAMPING SYSTEMS
2021-02-24
Theses
Electronic Resource
English
dissipative bracing system , Settore ICAR/09 - Tecnica delle Costruzioni , dissipative rocking mechanism , numerical modelling , seismic response , shaking table test , non-linear dynamic analyse , post-tensioned timber framed building , displacement based design procedure , non-linear displacement dependent device , code requirements
DDC:
690
Gravity Design of Post-Tensioned Timber Frames for Multi-Storey Buildings
| British Library Conference Proceedings | 2012
System aspects of stabilisation of multi-storey timber framed buildings
| British Library Conference Proceedings | 1999