Research Information System
5th International Conference on Advanced Engineering Technologies, Bayburt, Turkey, 25 - 27 September 2024, pp.66-72
The Steel Space Truss
System is characterized by its lightweight nature and high-strength properties,
making it a favoured choice for roofing in various large-scale structures such
as stadiums, airports, swimming pools, halls, aircraft hangars, conference halls,
and trade centres. Its economic advantage over traditional systems stems from
its reduced material usage. Selecting appropriate elements for an SSTS is
paramount for cost efficiency. Furthermore, incorporating seismic isolation
systems alleviates horizontal loads on the structure, allowing for the
utilization of smaller cross-section elements, thus positively impacting
overall costs. This study focused on optimizing the total weight of seismic
isolated Steel Space Truss (SST) elements by categorizing them into groups. The
SapRao algorithm, a recently developed method, was employed to compare the
total weights of SST elements divided into 3 and 6 groups. For this purpose, MATLAB
codes and the Open Application Programming Interface (OAPI) properties of SAP2000
were utilized in the optimization process. The primary objective function of
this optimization was to minimize the total weight of truss elements. The load
combinations considered consisted of self-weight, coating load, wind load, and
seismic loads. The single concave friction pendulum (SCFP) was employed as the
isolation system in this study. The analysis results obtained from seismically
isolated SST with 3-group and 6-group were compared to each other. As a result
of the optimization process, a total weight of 268.74 kN was achieved for the
SST divided into 3 groups, while a total weight of 128.68 kN was obtained for
the SST divided into 6 groups.