整幅大跨连续刚构桥施工技术

Construction Techniques for Full-size Large-span Continuous Rigid Frame Bridge

介绍山西晋济高速公路南河特大桥主桥连续刚构桥施工技术。采用双肢联体挂篮施工T构梁段,在0号梁段上拼装双肢联体挂篮,对称悬臂施工大跨、整幅、斜腹板箱梁。包括双肢联体挂篮设计、加工与安装和混凝体施工工艺,为同类工程提供借鉴。

It is introduced in this paper the construction of continuous rigid frame bridge of Nanhe extra-large bridge main bridge in Shanxi Jinji Expressway. The construction of T-shape beam section adopts the double-limb conjoined rhombic sus- pension, the double-limb conjoined rhombic suspension is assembled at 0# beam section, and the symmetric cantilever con- struction adopts the large-span, full-size, inclined web plate box girders. The design, processing, and installation of doub- le-limb conjoined rhombic suspension, together with concrete structure construction techniques could be of reference to similar projects.