TY - GEN
T1 - Simultaneous optimization of structural shape and control system of large-scale space frame
AU - Dan, M.
AU - Kohiyama, M.
PY - 2013/11/22
Y1 - 2013/11/22
N2 - In general, large-scale space frames, such as stadiums and gymnasiums, have a role as an evacuation facility. However, some accidental falls of a ceiling and equipment during an earthquake have been reported, and these accidents might cause human injury or casualty. On the other hand, these structures often have an aesthetically elaborated design, but they do not always have high performances from a structural point of view. This research proposes a method to support designing a large-scale space frame, which implements: 1) a design elaborated by an architect and 2) structural and control performances, which can reduce damage or fall of a ceiling, on the basis of simultaneous optimization of structural and control systems. The number of design parameters in the optimization problem is reduced by describing the roof shape with a Bézier surface. The genetic algorithm is used for the optimization.
AB - In general, large-scale space frames, such as stadiums and gymnasiums, have a role as an evacuation facility. However, some accidental falls of a ceiling and equipment during an earthquake have been reported, and these accidents might cause human injury or casualty. On the other hand, these structures often have an aesthetically elaborated design, but they do not always have high performances from a structural point of view. This research proposes a method to support designing a large-scale space frame, which implements: 1) a design elaborated by an architect and 2) structural and control performances, which can reduce damage or fall of a ceiling, on the basis of simultaneous optimization of structural and control systems. The number of design parameters in the optimization problem is reduced by describing the roof shape with a Bézier surface. The genetic algorithm is used for the optimization.
KW - Architectural design
KW - Bézier surface
KW - Earthquake engineering
KW - Genetic algorithm
KW - Optimization
KW - Seismic control
KW - Space frame
KW - Structural engineering
KW - Structural shape
KW - Tuned mass damper
UR - http://www.scopus.com/inward/record.url?scp=84887833843&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887833843&partnerID=8YFLogxK
U2 - 10.2495/ERES130141
DO - 10.2495/ERES130141
M3 - Conference contribution
AN - SCOPUS:84887833843
SN - 9781845647360
T3 - WIT Transactions on the Built Environment
SP - 169
EP - 178
BT - Earthquake Resistant Engineering Structures IX
T2 - 9th World Conference on Earthquake Resistant Engineering Structures, ERES 2013
Y2 - 8 July 2013 through 10 July 2013
ER -