Influence Analysis of Joint's Stiffness on Spatial Reticulated Shell

Abstract

Joint’s stiffness has important influence on the stability behavior of large-span spatial reticulated shell. In this paper, the nonlinear beam-column element with end springs is taken as the analysis model of members of single-layer reticulated shell, the whole process of nonlinear stability for single-layer reticulated shell is analyzed with the software ANSYS, the influence of joint’s stiffness on the stability of single-layer reticulated shell is studied. Some important conclusions were obtained, which can provide theoretical foundation for the stability ultimate bearing capacity analysis of large-span spatial reticulated shell considering joint’s stiffness and can be applied on practical design.

Study on Elasto-Plastic Stability Bearing Capacities for K6 Single-Layer Reticulated Shells under Fire Conditions

“…Based on the <Technical specification for latticed shells>, 1/300 [4] of the span is regarded as the initial imperfection mode in the calculation models. [5,6,7] were used in calculation models, and each member was simulated by BEAM188 unit. The supports around of the model use fixed bearings, and uniform load of full span is employed.…”