The pouring of arch pipe concrete is the key control process of concrete-filled steel tubular tie-arch bridge. The concrete mix design, the expansion coefficient and the durability parameters, and the pouring construction technology of the concrete pipe are the key content of the technical research of concrete-filled steel pipe arch. Through study of the above aspects, the relevant technical parameters and technology are obtained, and practice has verified that it meet the construction needs, and can provide a basis for similar construction.%拱管混凝土的浇筑是钢管混凝土系杆拱桥的关键控制工序,混凝土的配合比设计、膨胀系数等性能及耐久性参数、拱管混凝土的顶升浇筑施工工艺为钢管混凝土系杆拱技术研究的重点内容之一.结合通过对以上几方面的研究,得出相关技术参数及工艺,通过实践验证满足施工需要,可为类似工程施工提供依据.
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