Strength of reticulated shells designed by second-order elastic analysis

摘要

The paper is concerned with development of design procedure against buckling of reticulated shells, on the basis of numerical analysis and with evaluation of ultimate strength of the designed structures. For design of reticulated shells are presented two topics: (1)a second-order elastic analysis(SOA) to estimate additional bending moment effects on overall strength, (2)a second-order plastic hinge analysis(SOPHA), to evaluate overall load capacity of designed structures with a specific geometric imperfection and discuss reduction of ultimate strength from it for perfect geometries.