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基于大跨度空间结构安全问题的重大意义,在对影响其安全的各因素特点进行充分分析的基础上,将层次分析法引入到空间结构的安全预警评估中.根据空间结构的自身特点及所处环境的复杂性,提出了适用于空间结构预警评估指标体系的构建方法;结合模糊综合评判和模式识别理论,建立起完整的安全预警评估流程;并通过某钢结构工程的典型实例进行了定量化分析评价.通过对空间结构预警指标体系和评估方法的初步研究和探索,为在实际工程中建立更为科学合理的预警评估模型提供了思路,对改进传统评估方法的不足具有重要意义.
Based on the great significance of the safety of long-span space structure, based on the sufficient analysis of the factors that affect its safety, the analytic hierarchy process is introduced into the safety early-warning assessment of the space structure.According to its own characteristics and location The complexity of the environment and the construction method of the index system for early warning assessment of space structure are put forward. A complete safety early warning assessment process is established by combining the fuzzy comprehensive evaluation and the pattern recognition theory. The method is quantified by a typical example of a steel structure project Analysis and evaluation.Through the preliminary study and exploration of the index system and assessment method of early warning of spatial structure, this paper provides ideas for establishing a more scientific and reasonable early warning assessment model in practical engineering, which is of great significance to the improvement of the deficiencies of traditional assessment methods.