Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Middle support area structure of continuous composite beam bridge and continuous composite beam bridge
The middle support area structure comprises two narrow steel boxes which are arranged in parallel in the bridge direction, each narrow steel box comprises a middle support section and midspan sections located on the two sides of the middle support section, and the bottom of the inner side of each middle support section is filled with concrete; a bridge deck slab is poured between the tops of the two narrow steel boxes, and ultra-high performance concrete is poured on the upper layer of the bridge deck slab and located above the middle support section. The invention has the following beneficial effects: the hogging moment area has the dual combination effect of the narrow steel box filled with concrete and the ultra-high performance concrete bridge deck slab, so that the hogging moment and shearing resistance of the section of the middle support section is improved, and the stress performance is improved; the situation that the bearing capacity and durability of a middle support area of an existing narrow steel box-concrete continuous composite beam bridge are insufficient is overcome, inward bending of the middle support area is limited by filled concrete, the local stability is greatly improved, and arrangement of web plates and bottom plate stiffening ribs can be reduced.
本发明涉及一种连续组合梁桥的中支座区结构及连续组合梁桥，包括两个沿顺桥向平行设置的窄幅钢箱，窄幅钢箱包括中支座区段和位于中支座区段两侧的跨中段，中支座区段内侧底部填充有混凝土；两个窄幅钢箱顶部之间浇筑有桥面板，所述桥面板上层浇筑有超高性能混凝土，超高性能混凝土位于中支座区段上方。本发明的有益效果是：负弯矩区由填充混凝土的窄幅钢箱和超高性能混凝土桥面板双重组合作用，提高了中支座区段截面抵抗负弯矩和剪力的能力，受力性能得到改善，克服了现有窄幅钢箱‑混凝土连续组合梁桥中支座区承载能力和耐久性不足的状况，并且中支座区段的内屈受到充填混凝土限制，局部稳定性大大提高，可减少腹板、底板加劲肋的布置。
Middle support area structure of continuous composite beam bridge and continuous composite beam bridge
The middle support area structure comprises two narrow steel boxes which are arranged in parallel in the bridge direction, each narrow steel box comprises a middle support section and midspan sections located on the two sides of the middle support section, and the bottom of the inner side of each middle support section is filled with concrete; a bridge deck slab is poured between the tops of the two narrow steel boxes, and ultra-high performance concrete is poured on the upper layer of the bridge deck slab and located above the middle support section. The invention has the following beneficial effects: the hogging moment area has the dual combination effect of the narrow steel box filled with concrete and the ultra-high performance concrete bridge deck slab, so that the hogging moment and shearing resistance of the section of the middle support section is improved, and the stress performance is improved; the situation that the bearing capacity and durability of a middle support area of an existing narrow steel box-concrete continuous composite beam bridge are insufficient is overcome, inward bending of the middle support area is limited by filled concrete, the local stability is greatly improved, and arrangement of web plates and bottom plate stiffening ribs can be reduced.
本发明涉及一种连续组合梁桥的中支座区结构及连续组合梁桥，包括两个沿顺桥向平行设置的窄幅钢箱，窄幅钢箱包括中支座区段和位于中支座区段两侧的跨中段，中支座区段内侧底部填充有混凝土；两个窄幅钢箱顶部之间浇筑有桥面板，所述桥面板上层浇筑有超高性能混凝土，超高性能混凝土位于中支座区段上方。本发明的有益效果是：负弯矩区由填充混凝土的窄幅钢箱和超高性能混凝土桥面板双重组合作用，提高了中支座区段截面抵抗负弯矩和剪力的能力，受力性能得到改善，克服了现有窄幅钢箱‑混凝土连续组合梁桥中支座区承载能力和耐久性不足的状况，并且中支座区段的内屈受到充填混凝土限制，局部稳定性大大提高，可减少腹板、底板加劲肋的布置。
Middle support area structure of continuous composite beam bridge and continuous composite beam bridge
一种连续组合梁桥的中支座区结构及连续组合梁桥
ZHENG YAN (Autor:in) / YANG HAILIN (Autor:in) / JIANG TENGTENG (Autor:in) / LIANG ZEMANG (Autor:in) / LI WENCHI (Autor:in) / LI YUNHAI (Autor:in)
31.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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