摘要
Abstract
The paper is based on building information modeling(BIM)technology and combined with the theory of sensitivity analysis of construction control parameters to conduct a quantitative sensitivity assessment of key parameters for prestressed concrete continuous beam bridges.By constructing BIM models,the sensitivity indices of each parameter are calculated,and the corresponding percentages of these indices are systematically organized to identify the categories of highly sensitive parameters,relatively sensitive parameters,and insensitive parameters.The results indicate that the density of concrete and variations in prestressing force have a significant impact on the deflection and stress distribution of the bridge structure,and are classified as highly sensitive parameters.In contrast,the strength of concrete,elastic modulus,and relative environmental humidity have minimal influence on the structure and are considered low-sensitivity or insensitive parameters.The findings of this study can clarify the scope of parameters that require close attention in construction monitoring,thereby helping to optimize the precision of construction control and enhance the quality of bridge construction.关键词
建筑信息模型(BIM)技术:连续梁桥/参数敏感性Key words
building information modeling(BIM)technology/continuous beam bridge/parameters sensitivity分类
交通工程
