Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-anchored suspension bridge steel-concrete combined section and construction method thereof
The invention belongs to the technical field of bridge construction, and discloses a self-anchored suspension bridge steel-concrete combined section and a construction method thereof. The self-anchored suspension bridge steel-concrete combined section comprises a concrete beam section and a steel beam section, and the concrete beam section and the steel beam section are connected through a steel-concrete connecting mechanism and a tensioning mechanism; the connecting mechanism comprises an interface bearing plate and a stud shear key welded on a steel structure overhanging steel plate; the tensioning mechanism comprises a prestressed concrete area arranged in the concrete beam section, and a plurality of tensioning prestressed tendons are arranged between the prestressed concrete area and the steel beam section for tensioning connection; the self-anchored suspension bridge steel-concrete combined section is mainly used for the position where a concrete structure is converted into a steel structure, the concrete section is located at the side span position to achieve the purpose of ballasting, and the steel beam section is used at the middle span position to achieve the purposes of reducing the self weight and increasing the span of the bridge. The steel-concrete combined section is mainly arranged at a transition position of the concrete structure and the steel structure, on the two sides near a main tower or near a bending moment inflection point of a midspan support, so that the excellent compression resistance of concrete is utilized, the tensile property of steel is also utilized, the material performance of a concrete beam and the material performance of a steel beam are brought into full play, and meanwhile the cost is reduced, and the construction period is shortened.
本属于桥梁施工技术领域，公开了一种自锚式悬索桥钢‑混结合段及其施工方法，包括混凝土梁段和钢梁段，所述混凝土梁段和钢梁段之间通过钢‑混连接机构和张拉机构相连接，所述的连接机构包含界面承压板和钢结构外伸钢板上焊接的栓钉剪力键；所述张拉机构包括设置在混凝土梁段内的预应力混凝土区域，在预应力混凝土区域与钢梁段之间设有多根张拉预应力筋进行张拉连接；本发明的自锚式悬索桥钢‑混结合段，主要用于混凝土结构向钢结构转化的位置，混凝土段位于边跨位置，已达到压重的目的，钢梁段用于中跨位置，达到减少自重，增大桥梁跨径的目的，钢‑混结合段主要设置在混凝土结构和钢结构的过渡位置、主塔附近两侧或中跨支座弯矩反弯点附近，这样既利用了混凝土优越抗压性能，又利用钢材拉伸性能,充分发挥混凝土梁、钢梁各自的材料性能同时又降低成本和工期。
Self-anchored suspension bridge steel-concrete combined section and construction method thereof
The invention belongs to the technical field of bridge construction, and discloses a self-anchored suspension bridge steel-concrete combined section and a construction method thereof. The self-anchored suspension bridge steel-concrete combined section comprises a concrete beam section and a steel beam section, and the concrete beam section and the steel beam section are connected through a steel-concrete connecting mechanism and a tensioning mechanism; the connecting mechanism comprises an interface bearing plate and a stud shear key welded on a steel structure overhanging steel plate; the tensioning mechanism comprises a prestressed concrete area arranged in the concrete beam section, and a plurality of tensioning prestressed tendons are arranged between the prestressed concrete area and the steel beam section for tensioning connection; the self-anchored suspension bridge steel-concrete combined section is mainly used for the position where a concrete structure is converted into a steel structure, the concrete section is located at the side span position to achieve the purpose of ballasting, and the steel beam section is used at the middle span position to achieve the purposes of reducing the self weight and increasing the span of the bridge. The steel-concrete combined section is mainly arranged at a transition position of the concrete structure and the steel structure, on the two sides near a main tower or near a bending moment inflection point of a midspan support, so that the excellent compression resistance of concrete is utilized, the tensile property of steel is also utilized, the material performance of a concrete beam and the material performance of a steel beam are brought into full play, and meanwhile the cost is reduced, and the construction period is shortened.
本属于桥梁施工技术领域，公开了一种自锚式悬索桥钢‑混结合段及其施工方法，包括混凝土梁段和钢梁段，所述混凝土梁段和钢梁段之间通过钢‑混连接机构和张拉机构相连接，所述的连接机构包含界面承压板和钢结构外伸钢板上焊接的栓钉剪力键；所述张拉机构包括设置在混凝土梁段内的预应力混凝土区域，在预应力混凝土区域与钢梁段之间设有多根张拉预应力筋进行张拉连接；本发明的自锚式悬索桥钢‑混结合段，主要用于混凝土结构向钢结构转化的位置，混凝土段位于边跨位置，已达到压重的目的，钢梁段用于中跨位置，达到减少自重，增大桥梁跨径的目的，钢‑混结合段主要设置在混凝土结构和钢结构的过渡位置、主塔附近两侧或中跨支座弯矩反弯点附近，这样既利用了混凝土优越抗压性能，又利用钢材拉伸性能,充分发挥混凝土梁、钢梁各自的材料性能同时又降低成本和工期。
Self-anchored suspension bridge steel-concrete combined section and construction method thereof
一种自锚式悬索桥钢-混结合段及其施工方法
YANG JI (Autor:in) / HUAI CHENZI (Autor:in) / FENG ZHONGLIN (Autor:in) / HUANG YI (Autor:in) / YANG LEI (Autor:in) / SONG YINPING (Autor:in) / ZHAO HAIZENG (Autor:in) / HUANG TAIXIN (Autor:in) / ZHANG DUO (Autor:in)
08.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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