Analysis of Single Layer Reticulated Roof Shell Structure

Single-layer reticulated structures are extensively used because of their potential to cover wide areas with different form shapes, mild weight and without intermediate support. Large span roof shell structures have a structural tendency to be unsteady during the effect of static loading as well as under dynamic loading. To understand the behaviour of shell structure analysis, need to be carried out. However, the analysis was required to be done for understanding its bending, vibration, axial, buckling etc. In this thesis paper, models of spherical single layer reticulated shell structures were established in Finite Element software FEAST^SMT. Based on static analysis maximum response of the vertical displacement of the structure is investigated as well as under free vibration frequency, dynamic behaviour of the structure was also investigated in this research paper. Parametric analysis was conducted and the influence of these parameters on the structure were observed in terms of free vibration frequency. Several parameters were considered for the analysis such as, different span diameters and rise to span ratios. Based on the analysis, the optimum rise to span ratio was found out.