The progressive collapse of the spatial grid structure is focus and difficulty current research. stability problem single-layer latticed shell more prominent due to its low redundancy. In this paper, dynamic nonlinear analysis Zhoukoudian large-span carried out study process by finite element software ABAQUS. results show that eventually under 7 times gravity load. mid-span zone on left side we...

Thermal expansion of a member can affect structural bearing capacity when one or more members are subjected to fire. To explore the developmental rule internal force in latticed shell structure, computation method sensitivity is presented based on alternate path method. Taking K8 single-layer structure as analysis object, finite element models established by ANSYS, applying temperature loads ra...

In this study, on-site bending experiments which represented realistic and pragmatic engineering applications were performed to investigate the resistance, deflection, cracking process of latticed girder composite slabs. Then, utilizing ABAQUS software, nonlinear finite element (FE) models established behavior The modeling took into account contact between precast cast-in-place concrete interfa...

Optical characteristics of square-latticed metasurfaces are analyzed by equations derived from a dipole-quadrupole system. For the metasurface composed Si nanospheres, meta-atoms maintain anapole single scatterer, which not affected lattice period. The far-field response thus can be engineered without significantly disturbing near-fields in meta-atoms. In addition, as exhibited with Ag/Si core-...

this paper focuses on using the recently developed extended finite element model for buckling analysis of edge cracked columns under concentric axial load. the effect of crack depth and its location on the carrying capacity of columns is studied. the effect of different boundary conditions is also investigated. numerical examples are offered to show the efficiency and effectiveness of the propo...