شماره ركورد كنفرانس :
3124
عنوان مقاله :
RELIABILTY BASED TOPOLOGY OPTIMIZATION FOR THE SEISMIC DESIGN OF TRUSS-LIKE STRUCTURES
پديدآورندگان :
MOGHADDAM Hasan نويسنده , MOHAMMADI Afshin نويسنده
كليدواژه :
Topology optimization , seismic design , Truss-Like Structures
عنوان كنفرانس :
مجموعه مقالات هفتمين كنفرانس بين المللي زلزله شناسي و مهندسي زلزله
چكيده فارسي :
In this paper, reliability based design methodology is applied towards optimization of truss structures
excited by earthquake ground motions. The total weight of structure is optimized under constraints related to
minimum target reliabilities specified for each element and different performance requirements. To achieve
this goal, the redundant materials slightly move from strong spots to the weak segments of the structure until
a state of uniform deformation and confidence prevails. Probabilistic seismic performance assessment
adopted by PEER is applied to calculate the expected mean annual exceedance frequency of demand
parameter of a given truss system considering seven seismic excitations. The efficiency of the applied
method is illustrated by case study. The algorithm has the capability of considering desired reliability
constraints for each element resulting in a balanced distribution of weight
شماره مدرك كنفرانس :
3817028