张拉整体结构静力性能的参数分析

应用非线性有限元理论,对预应力态和荷载态的张拉整体结构进行了分析。将结构离散为空间索和杆单元,考虑单元的几何非线性,建立了近20个模型,分别就两种工况进行了大量计算。研究了几何外形、预应力、跨度、矢跨比等参数对结构非线性的影响程度,并把线性与非线性结果进行了比较,得出了有益的结论,为结构的动力分析奠定了基础。

ANALYSIS OF STATIC PERFORMANCE''''S PARAMETERS OF TENSEGRITY STRUCTURE

It is analyzed the tensegrity structure in pre-stressed and load states by the non-linear finite element theory.Construction is dispersed into spatial cable & bar unit;element's geometric nonlinearity is considered;near 20 models are setup;a large great of calculations are made for the two work state.It is studied the influence degree of parameters,such as geometry profile,pre-stress,span,height-span ratio and etc.on the construction's nonlinearity.The linear results are compared with the nonlinear results and the beneficial results are also got,which provides the basis for the dynamic analysis for the construction.