Papers by sooraj reloaded
The potentiality of cold-formed steel structures (CFS) in terms of lightness,
rapid on-site erect... more The potentiality of cold-formed steel structures (CFS) in terms of lightness,
rapid on-site erection and high structural performance is spreading the use of the
technology in the most industrialized countries. In particular, the overall recognized
capability to assure a good structural response in high seismic areas is allowing the
adoption in some of the most conservative communities. On the other hand, despite
the many ongoing research in different countries, the current seismic design codes are
often inadequate if compared to the evolutionary process. Enabling the Performance-
Based Design of Multi-Story Cold-Formed Steel (CFS) Structures, known simply as
CFS-NEES, has entered its final year of research. Testing of two full-scale coldformed
steel framed buildings under seismic excitation at the University at Buffalo
Structural Engineering Earthquake Simulation Lab (SEESL) was performed .The
two-story buildings, approximately 7 m x 15.3 m in plan and 5.8 m in height, were
tested in two different configurations. In the first, the engineered lateral force
resisting system (LFRS), consisting of OSB sheathed shear walls, and OSB sheathed
floors/diaphragms was tested gravity walls were left unsheathed, and interior gypsum
on the shear walls and interior walls were absent. In effect, this first configuration
examines the LFRS that is specifically designed by the engineer. In the second
building configuration the building was completely fit-out, thus the influence of the
sheathed gravity walls, interior walls, etc. were all captured, providing insight on the
engineered LFRS and the full building system response. System identification tests
and earthquake excitations utilizing the Canoga Park and Rinaldi records were both
performed. The buildings were densely instrumented and provide video,
displacement, acceleration, and force measurements both globally and in local
systems throughout. While the response of the entire structure is investigated, the
performance of several sub-systems is also of interest, including: the ledger-framing
system, floor diaphragm, multi-story shear walls, stud sheathing-fastener connections,
and non-structural elements. Aligned with the overall CFS-NEES effort, these
experiments will also provide benchmarks for advancing the computational models
necessary for improving performance-based design for CFS structures.
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Papers by sooraj reloaded
rapid on-site erection and high structural performance is spreading the use of the
technology in the most industrialized countries. In particular, the overall recognized
capability to assure a good structural response in high seismic areas is allowing the
adoption in some of the most conservative communities. On the other hand, despite
the many ongoing research in different countries, the current seismic design codes are
often inadequate if compared to the evolutionary process. Enabling the Performance-
Based Design of Multi-Story Cold-Formed Steel (CFS) Structures, known simply as
CFS-NEES, has entered its final year of research. Testing of two full-scale coldformed
steel framed buildings under seismic excitation at the University at Buffalo
Structural Engineering Earthquake Simulation Lab (SEESL) was performed .The
two-story buildings, approximately 7 m x 15.3 m in plan and 5.8 m in height, were
tested in two different configurations. In the first, the engineered lateral force
resisting system (LFRS), consisting of OSB sheathed shear walls, and OSB sheathed
floors/diaphragms was tested gravity walls were left unsheathed, and interior gypsum
on the shear walls and interior walls were absent. In effect, this first configuration
examines the LFRS that is specifically designed by the engineer. In the second
building configuration the building was completely fit-out, thus the influence of the
sheathed gravity walls, interior walls, etc. were all captured, providing insight on the
engineered LFRS and the full building system response. System identification tests
and earthquake excitations utilizing the Canoga Park and Rinaldi records were both
performed. The buildings were densely instrumented and provide video,
displacement, acceleration, and force measurements both globally and in local
systems throughout. While the response of the entire structure is investigated, the
performance of several sub-systems is also of interest, including: the ledger-framing
system, floor diaphragm, multi-story shear walls, stud sheathing-fastener connections,
and non-structural elements. Aligned with the overall CFS-NEES effort, these
experiments will also provide benchmarks for advancing the computational models
necessary for improving performance-based design for CFS structures.
rapid on-site erection and high structural performance is spreading the use of the
technology in the most industrialized countries. In particular, the overall recognized
capability to assure a good structural response in high seismic areas is allowing the
adoption in some of the most conservative communities. On the other hand, despite
the many ongoing research in different countries, the current seismic design codes are
often inadequate if compared to the evolutionary process. Enabling the Performance-
Based Design of Multi-Story Cold-Formed Steel (CFS) Structures, known simply as
CFS-NEES, has entered its final year of research. Testing of two full-scale coldformed
steel framed buildings under seismic excitation at the University at Buffalo
Structural Engineering Earthquake Simulation Lab (SEESL) was performed .The
two-story buildings, approximately 7 m x 15.3 m in plan and 5.8 m in height, were
tested in two different configurations. In the first, the engineered lateral force
resisting system (LFRS), consisting of OSB sheathed shear walls, and OSB sheathed
floors/diaphragms was tested gravity walls were left unsheathed, and interior gypsum
on the shear walls and interior walls were absent. In effect, this first configuration
examines the LFRS that is specifically designed by the engineer. In the second
building configuration the building was completely fit-out, thus the influence of the
sheathed gravity walls, interior walls, etc. were all captured, providing insight on the
engineered LFRS and the full building system response. System identification tests
and earthquake excitations utilizing the Canoga Park and Rinaldi records were both
performed. The buildings were densely instrumented and provide video,
displacement, acceleration, and force measurements both globally and in local
systems throughout. While the response of the entire structure is investigated, the
performance of several sub-systems is also of interest, including: the ledger-framing
system, floor diaphragm, multi-story shear walls, stud sheathing-fastener connections,
and non-structural elements. Aligned with the overall CFS-NEES effort, these
experiments will also provide benchmarks for advancing the computational models
necessary for improving performance-based design for CFS structures.