TY - GEN
T1 - Prestress optimization of hybrid tensile structures
AU - Albertin, A.
AU - Malerba, P. G.
AU - Pollini, N.
AU - Quagliaroli, M.
PY - 2012
Y1 - 2012
N2 - Cable structures differ from the conventional ones for their lightness and for the versatility of their shapes. As they work only by axial tensile forces, the structural geometry and the pretensioning intensity applied to the cables are closely related. In this paper, a matrix theory suitable for the analysis of a spatial pin-jointed structure is recalled and the role of the cable prestress and the optimization of the prestress distribution and of the prestress intensity is studied. In a second part of the paper an optimization procedure, based on a genetic algorithm, is presented. Such a procedure allows searching a solution at the same time of minimum weight and respecting given technological constraints, as shown trough a final example.
AB - Cable structures differ from the conventional ones for their lightness and for the versatility of their shapes. As they work only by axial tensile forces, the structural geometry and the pretensioning intensity applied to the cables are closely related. In this paper, a matrix theory suitable for the analysis of a spatial pin-jointed structure is recalled and the role of the cable prestress and the optimization of the prestress distribution and of the prestress intensity is studied. In a second part of the paper an optimization procedure, based on a genetic algorithm, is presented. Such a procedure allows searching a solution at the same time of minimum weight and respecting given technological constraints, as shown trough a final example.
UR - http://www.scopus.com/inward/record.url?scp=84863922088&partnerID=8YFLogxK
U2 - 10.1201/b12352-256
DO - 10.1201/b12352-256
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AN - SCOPUS:84863922088
SN - 9780415621243
T3 - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
SP - 1750
EP - 1757
BT - Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
T2 - 6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
Y2 - 8 July 2012 through 12 July 2012
ER -