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在总结拱支网壳结构力学特点的基础上,将张拉整体的概念引入拱支网壳,提出弦支拱壳结构,较好地解决了拱支网壳结构支座反力较大,下部支承结构设计较为困难的问题。结合算例分析弦支拱壳结构的静力性能、稳定性能,得出张拉整体的引入很大程度上能减小拱支网壳结构的支座反力,且较大提高拱支网壳结构的稳定性能;对比分析弦支拱壳和拱支网壳结构的基本动力特性,得到刚度和自振频率等特性。
On the basis of summarizing the mechanics characteristics of the arched shell structure, the whole concept of tension is introduced into the arched shell, and the arched shell structure is proposed to solve the problem that the support force of the arched shell structure is larger and the lower part Support structure design more difficult problems. With the example, the static performance and stability of the arched shell structure are analyzed. It is concluded that the introduction of the whole tension can largely reduce the reaction force of the support of the arched shell shell structure, The stability of the structure is compared. The basic dynamic characteristics of the arch shell and the arch shell are compared and the stiffness and natural frequency are obtained.