Stress Analysis And Optimization Calculation For Large-scale Cable-suspended Structure In Yesanhe

Based on the experience summed up by our predecessors,according to study of large-scale cable-suspended structure of pipelines in yesanhe, with finite element software ANSYS, the establishment of structure of the numerical model, studying of static and dynamic analysis, we can provide a kind of matural and scientific analysis method for future similar structure..In the analysis model, pipeline itself is one of the components by force, taking same node with beam on the truss. Pipeline was placed in the whole structure, forced in the static and dynamic analysis, holding the line in freedom migration of truss, participating in the common structure of the work.And truss is designed for the arch camber of two meters,to some extent offset pressure, is a reasonable span of continuous beam to the basic pattern of non-tolerance.In the dynamic analysis,making use of mode superposition of dynamic-term analysis, and geting mode from mode analysis, multiply the participation factor and sum ,we analyse dynamic response cable-suspended structure of pipelines of the vibration displacement, vibration acceleration time of maximum stress, and stress, displacement distribution in seismic and wind load conditions.Through comparative static and dynamic analysis by the same standards, the whole structure between four anti-winds of structure and two anti-winds of structure hold the line in changes in the force, significantly reduce z-axis of displacement, however to some extent vertical anti-winds offset vibration. Finally, preliminary provide structural optimization for assembly line work between tower and major cables, truss.