中文摘要：

根据对大跨度环形索桁结构体系的非线性计算，讨论了结构在一定预应力条件下满跨和半跨荷载时的静力特性，并进行了结构在不同预应力和不同边界条件下的参数分析，得出一系列对实际工程和进一步研究有借鉴意义的结论．

英文摘要：

According to the nonlinear analysis of a large-span prestress, the static behavior of the structure is discussed. And under different prestress and different boundary condition is annular cable truss structure with initial the parameter analysis of such a structure concerned. Some useful conclusions for engineering and further research work are presented.