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A platform for research: civil engineering, architecture and urbanism
Bridge type structure applied to prestressed concrete steel-concrete partial cable-stayed bridge
The invention discloses a bridge type structure applied to a prestressed concrete steel-concrete partial cable-stayed bridge. According to a prestressed concrete cable-stayed bridge of a domestic railway, the bridge type spanning capacity is limited due to the fact that a concrete structure is adopted as a beam structure. A beam body part of the bridge type structure comprises a prestressed concrete box beam section and a steel-concrete combination section, and the steel box beam section and the beam body part form a hinged system with a bridge tower through a support system; one end of the stay cable is connected with the bridge tower, and the other end is sequentially connected with the prestressed concrete box girder section, the steel-concrete combined section and the steel box girder section; the steel strand stay cables are arranged in a fan shape, one ends of the steel strand stay cables are anchored to the reinforced concrete bridge tower, and the other ends of the steel strand stay cables are sequentially anchored to the prestressed concrete box girder section, the steel-concrete combination section and the steel box girder section. The steel box girders are arranged in the midspan, so that the span of the prestressed concrete partial cable-stayed bridge is increased, and the self weight of the structure and the post-construction creep deformation value of the prestressed concrete partial cable-stayed bridge are effectively reduced.
本发明公开了一种应用于预应力混凝土钢‑混凝土部分斜拉桥的桥式结构。国内铁路预应力混凝土斜拉桥，因梁部结构采用混凝土结构，故限制了该桥式跨越能力。本发明桥式结构梁体部分包括预应力混凝土箱梁段、钢‑混凝土结合段、钢箱梁段，梁体部分通过支座系统与桥塔形成铰接体系；斜拉索一端与桥塔连接，一端依次连接预应力混凝土箱梁段、钢‑混凝土结合段、钢箱梁段；钢绞线斜拉索呈扇形布置，一端锚固于钢筋混凝土桥塔，另一端依次锚固于预应力混凝土箱梁段、钢‑混凝土结合段、钢箱梁段。本发明在中跨设置钢箱梁，从而提升了预应力混凝土部分斜拉桥的跨度，有效减轻了结构自重及预应力混凝土部分斜拉桥工后徐变变形值。
Bridge type structure applied to prestressed concrete steel-concrete partial cable-stayed bridge
The invention discloses a bridge type structure applied to a prestressed concrete steel-concrete partial cable-stayed bridge. According to a prestressed concrete cable-stayed bridge of a domestic railway, the bridge type spanning capacity is limited due to the fact that a concrete structure is adopted as a beam structure. A beam body part of the bridge type structure comprises a prestressed concrete box beam section and a steel-concrete combination section, and the steel box beam section and the beam body part form a hinged system with a bridge tower through a support system; one end of the stay cable is connected with the bridge tower, and the other end is sequentially connected with the prestressed concrete box girder section, the steel-concrete combined section and the steel box girder section; the steel strand stay cables are arranged in a fan shape, one ends of the steel strand stay cables are anchored to the reinforced concrete bridge tower, and the other ends of the steel strand stay cables are sequentially anchored to the prestressed concrete box girder section, the steel-concrete combination section and the steel box girder section. The steel box girders are arranged in the midspan, so that the span of the prestressed concrete partial cable-stayed bridge is increased, and the self weight of the structure and the post-construction creep deformation value of the prestressed concrete partial cable-stayed bridge are effectively reduced.
本发明公开了一种应用于预应力混凝土钢‑混凝土部分斜拉桥的桥式结构。国内铁路预应力混凝土斜拉桥，因梁部结构采用混凝土结构，故限制了该桥式跨越能力。本发明桥式结构梁体部分包括预应力混凝土箱梁段、钢‑混凝土结合段、钢箱梁段，梁体部分通过支座系统与桥塔形成铰接体系；斜拉索一端与桥塔连接，一端依次连接预应力混凝土箱梁段、钢‑混凝土结合段、钢箱梁段；钢绞线斜拉索呈扇形布置，一端锚固于钢筋混凝土桥塔，另一端依次锚固于预应力混凝土箱梁段、钢‑混凝土结合段、钢箱梁段。本发明在中跨设置钢箱梁，从而提升了预应力混凝土部分斜拉桥的跨度，有效减轻了结构自重及预应力混凝土部分斜拉桥工后徐变变形值。
Bridge type structure applied to prestressed concrete steel-concrete partial cable-stayed bridge
一种应用于预应力混凝土钢-混凝土部分斜拉桥的桥式结构
OUYANG HUILAI (author) / CHEN YINGTAO (author) / ZHOU HONG (author) / CHEN HUALIANG (author) / LUO YANGMING (author) / ZHANG YUMING (author) / CHEN YUANDONG (author) / YANG CONG (author) / ZHANG DUOPING (author) / CHEN GANG (author)
2023-08-29
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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