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6组试验结果表明:一般的工业与民用建筑的主体结构主要构件经钢纤维水泥砂浆钢筋网加固后,加固层与原结构能有效地协同工作,构件承载力有大幅度的提高,构件破坏形态向延性破坏发展,裂缝也变得细而密。根据工程案例的实况和备选的改造加固方案,提取了加固层厚度、直接工程费、环保功效等14个技术经济评价指标,运用熵权决策法确定各指标所占的权重,最后模糊综合评判三个设计方案,得出钢纤维水泥砂浆钢筋网加固法是一项技术性能良好、经济支出合理、综合价值占优的加固方法。
The test results of 6 groups show that the main components of the common industrial and civil buildings are reinforced by the steel fiber reinforced cement mortar reinforcing steel mesh, the reinforcing layer and the original structure can effectively work together, the bearing capacity of the components increases greatly and the failure modes of the components Ductile damage to the development, the cracks have become thin and dense. According to the actual situation of the project case and the alternative reconstruction and reinforcement plan, 14 technical and economic evaluation indexes such as reinforcement layer thickness, direct construction cost and environmental protection efficacy are extracted, and the weight of each index is determined by entropy weight decision method. Finally, fuzzy comprehensive evaluation Three design schemes show that the steel fiber reinforced cement mortar reinforcement method is a reinforcement method with good technical performance, reasonable economic expenditure and superior comprehensive value.