Abstract: Current people choosing old industrial factory building structure reinforcement scheme is inefficient, and more one-sided in consideration.In order to fully and effectively solve the problem, through the consideration of safety, economy, feasibility and applicability, the influence factors, such as timeliness, from a case of reinforcement effect remarkable engineering standards, for 18 parameters of the comprehensive evaluation index,an optimization model of structural reinforcement scheme based on similar area and shape of spider web is established. In this model, the entropy weight method is used to determine the weight of 18 indicators, and the parameter values are normalized. Then, Python is used to calculate the similarity of spider web structure, and the source example that is most similar to the target example is retrieved. Finally, taking a project with remarkable structural reinforcement effect as an example, the model is proved to be effective in reducing subjective error and has strong practicability, and the structural reinforcement scheme of a steel rolling mill is optimized by using this model.

Key words: reinforced concrete, old industrial plant, structural reinforcement, cobweb model, scheme optimization

摘要： 当前人们选择旧工业厂房结构加固方案效率低下,且所考虑的因素较为片面,为了全面、高效地解决这一问题,通过综合考虑安全性、经济性、时间性、可行性和适用性等因素,以加固效果显著的工程案例为标准,以全面的18个参数为评价指标,构建了一种基于蛛网面积相似和形状相似的结构加固方案优选模型。该模型中首先运用熵权法确定18个指标权重,并将参数值归一化处理,随后运用Python计算蛛网结构相似度,检索出与目标范例最为相似的源范例。最后以结构加固效果显著的工程为例,验证了该模型能有效减少主观误差,具有较强的实用性,并以此模型优选出了某轧钢厂房结构加固方案。

关键词: 钢筋混凝土, 旧工业厂房, 结构加固, 蛛网模型, 方案优选