基于监测数据的预应力混凝土梁施工质量评价

摘要:

高速公路建设中混凝土施工质量是关注的重点,传统方法主要是通过人工检测与经验判断来评价混凝土梁的施工质量,存在一定的滞后与主观意见等影响。本文根据浙江沿海高速公路信息化平台所监测到的混凝土梁施工数据,采用层次分析法和模糊评价相结合的方法建立了混凝土梁施工质量评价体系；然后,采用专家问卷调查法结合层次分析法对各评价指标权重确定；最后以台州沿海高速预应力混凝土梁施工监测数据为基础,对不同施工标段预应力混凝土梁施工质量进行评价。结果表明：采用本文所建立的预应力混凝土梁评价体系可及时、客观对不同标段预应力混凝土梁施工质量进行评价,避免了人为干扰因素影响；浙江沿海高速台州段不同施工标段预应力混凝土梁总体施工质量优良,各标段评价结果与该工程质量检测结果基本相符。

Abstract:

SThe quality of concrete construction in expressway construction is the focus of attention. The traditional method is mainly to evaluate the construction quality of concrete girders with manual inspections and empirical judgments. There is a certain degree of lag and subjective opinions. Based on the concrete girders construction data monitored by the Zhejiang coastal expressway information system, this study uses the analytic hierarchy process (AHP) and the fuzzy evaluation method to establish a concrete girder construction quality evaluation system. Moreover, the expert questionnaire survey method combined with the AHP method, the weight of each evaluation index is determined. Finally, based on the construction monitoring data of the pre-stressed concrete girders of the Taizhou part of Zhengjiang Coastal Expressway, the construction quality of the pre-stressed concrete girders for different construction bids is evaluated. The results show that the pre-stressed concrete beam evaluation system established in this study can timely and objectively evaluate the construction quality of pre-stressed concrete girders in different construction bids, avoiding the influence of human interference factors. The overall construction quality of pre-stressed concrete in different construction bids of the Taizhou part of Zhejiang Coastal Expressway is excellent. Moreover, the evaluation results of each construction bid are basically agree well with the quality inspection results of the project.