中文摘要：

围绕薄膜充气结构的研究动态,归纳总结对其进行承弯性能预测的理论分析模型与方法。薄膜充气结构与常规结构的区别主要在于其由薄膜材料制作且由充气张拉成型,除了应该考虑薄膜本身的承载特性外,还要着重探讨充气对其承载性能的影响。当前的研究工作主要包括失效判定和挠曲变形预测两个方面,理论分析方法的建立,首先需要根据薄膜褶皱理论选择恰当的单元体及褶皱判据,然后基于模型简化假设建立失效与挠曲变形分析理论,其中失效判定的关键在于如何选择失效判据,而挠曲变形预测的重点在于如何全面恰当地反映压力的贡献。此外,将典型薄膜充气结构单元组合得到其组合结构,结合各构件的性能特点可实现对这种组合结构整体性能的估算与预测。最后,对薄膜充气结构承弯性能的理论分析方法改进及应用提出进一步的研究建议。

英文摘要：

Focused on the research advances on inflatable structures, the theoretical methods of their bending characteristics analysis are clarified and summarized.The membrane inflatable structures are made of membrane material and shaped by aeration;hence,it is crucial to investigate the influences brought in by internal pressure besides the load-carrying characteristics of membrane material.The relevant researches include the determination of collapse and the prediction of deflection.Aimed to establish the analytical theories,how to choose the right state of membrane element is significant as well as the wrinkle criterion.Then the key to the collapse determination is how to choose the collapse criterion,while the core of deflection prediction is how to involve in the contributions of pressure.The multi-cell inflatable structures consist of several inflatable cells so that it is feasible to estimate and predict their characteristics by the assemblage of the analytical methods of the typical cell configurations.Finally,some suggestions are proposed to improve the analytical methods in theory.