Study On Synergistic Action Charactecs Of Cable-Grid Dome Structure And The Whole Process Tracking

The cable dome have been developed as a new large-span spatial structures system at theend of the20th century. According to the unique mechanical properties of cable dome, thecable dome of secondary cable net supporting roof was systematic researched as researchobject through the cooperative work characteristic analysis of primary and secondary cablenet, the innovate construction method and the simulation analysis of whole constructionprocess etc. The construction simulation and load state analysis of cable dome program wascompiled based on the dynamic relaxation principle. The mechanical model of rigid roofingcable dome was established through the analysis of cooperation mechanism of rigid roofingcable dome. The effect of internal force and displacement of members variation law and thecooperative work of rigid grid system on the whole structure rigidity and bearing capacityunder full span asymmetric load were obtained based on the general FEM analysis programsANSYS. On the basis of cable original length control technology, the structural response ofconstruction process was analysed by using nonlinear dynamic finite element method andtracking the whole construction process.