钢-混组合梁桥面铺装UHPC施工要点研究

Study on the Construction Points of UHPC for Steel-Concrete Composite Beam Pavement

摘要:

现有研究表明：UHPC可有效提升钢-混凝土组合梁负弯矩区桥面板抗拉能力，提高抗裂性能与刚度，但其工程应用研究较少，实践性成果不足。因此，以济阳路快速化改建工程项目为载体，将UHPC应用到钢-混凝土组合梁桥面板负弯矩区，归纳包括现场搅拌、浇筑和养护等环节在内的UHPC桥面铺装的施工技术要点，其应用效果良好，验证了相关理论研究成果的科学性与可靠性。

Abstract:

The results of relevant theoretical research in China show that UHPC can effectively inhibit the cracking of the panel of steel-concrete combination beam bridge and improve the crack resistance performance. However, due to the lack of engineering application research in this direction, the practical demonstration results are insufficient. Therefore, taking the rapid reconstruction project of Jiyang Road as the carrier, this paper not only explores and analyzes the construction points of UHPC including on-site mixing, pouring and maintenance, but also indirectly verifies the scientificity and reliability of relevant theoretical research results.