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A platform for research: civil engineering, architecture and urbanism
Novel double-layer plate-truss combined rigid frame bridge upper-layer combined structure and construction method
The invention relates to a novel upper-layer composite structure of a double-layer plate-truss combined rigid frame bridge and a construction method, the structure comprises a 0 # block web member, the 0 # block web member is connected to a steel truss girder upper chord member, shear nails are arranged on the steel truss girder upper chord member and the 0 # block web member in a 0 # block area, and the 0 # block web member is connected with 0 # block lower concrete through the shear nails. A plurality of concrete bridge deck slabs are symmetrically arranged on the two sides of the 0 # block in the bridge direction and arranged at intervals, every two symmetrical concrete bridge deck slabs are connected through a plurality of bridge deck slab prestressed steel beams, the adjacent concrete bridge deck slabs on each side are connected through wet joints, and steel truss girder upper chords are connected with post-pouring concrete on the upper portion of the 0 # block through shear nails. A plurality of 0 # block prestressed steel beams are arranged in the 0 # block upper part post-cast concrete along the bridge direction, and the 0 # block upper part post-cast concrete is connected with the adjacent concrete bridge deck through a wet joint. Stress distribution of the upper portion of the 0 # block steel-concrete combined section is improved from force transmission anchoring and external prestress, the stress level is reduced, and the durability of a bridge structure is improved.
本发明关于一种新型双层板桁结合刚构桥上层组合构造及施工方法，该构造包括0#块腹杆，0#块腹杆连接于钢桁梁上弦杆，0#块区域内的钢桁梁上弦杆和0#块腹杆上设有剪力钉，0#块腹杆通过剪力钉连接0#块下部混凝土，0#块顺桥向两侧对称设有若干块混凝土桥面板，混凝土桥面板间隔设置，对称的两块混凝土桥面板之间通过若干桥面板预应力钢束连接，每侧相邻混凝土桥面板通过湿接缝连接，钢桁梁上弦杆通过剪力钉连接0#块上部后浇混凝土，0#块上部后浇混凝土内顺桥向设有若干0#块预应力钢束，0#块上部后浇混凝土与相邻的混凝土桥面板通过湿接缝连接。本发明从传力锚固和外加预应力改善0#块钢‑混结合段上部的应力分布，并降低应力水平，提高桥梁结构耐久性。
Novel double-layer plate-truss combined rigid frame bridge upper-layer combined structure and construction method
The invention relates to a novel upper-layer composite structure of a double-layer plate-truss combined rigid frame bridge and a construction method, the structure comprises a 0 # block web member, the 0 # block web member is connected to a steel truss girder upper chord member, shear nails are arranged on the steel truss girder upper chord member and the 0 # block web member in a 0 # block area, and the 0 # block web member is connected with 0 # block lower concrete through the shear nails. A plurality of concrete bridge deck slabs are symmetrically arranged on the two sides of the 0 # block in the bridge direction and arranged at intervals, every two symmetrical concrete bridge deck slabs are connected through a plurality of bridge deck slab prestressed steel beams, the adjacent concrete bridge deck slabs on each side are connected through wet joints, and steel truss girder upper chords are connected with post-pouring concrete on the upper portion of the 0 # block through shear nails. A plurality of 0 # block prestressed steel beams are arranged in the 0 # block upper part post-cast concrete along the bridge direction, and the 0 # block upper part post-cast concrete is connected with the adjacent concrete bridge deck through a wet joint. Stress distribution of the upper portion of the 0 # block steel-concrete combined section is improved from force transmission anchoring and external prestress, the stress level is reduced, and the durability of a bridge structure is improved.
本发明关于一种新型双层板桁结合刚构桥上层组合构造及施工方法，该构造包括0#块腹杆，0#块腹杆连接于钢桁梁上弦杆，0#块区域内的钢桁梁上弦杆和0#块腹杆上设有剪力钉，0#块腹杆通过剪力钉连接0#块下部混凝土，0#块顺桥向两侧对称设有若干块混凝土桥面板，混凝土桥面板间隔设置，对称的两块混凝土桥面板之间通过若干桥面板预应力钢束连接，每侧相邻混凝土桥面板通过湿接缝连接，钢桁梁上弦杆通过剪力钉连接0#块上部后浇混凝土，0#块上部后浇混凝土内顺桥向设有若干0#块预应力钢束，0#块上部后浇混凝土与相邻的混凝土桥面板通过湿接缝连接。本发明从传力锚固和外加预应力改善0#块钢‑混结合段上部的应力分布，并降低应力水平，提高桥梁结构耐久性。
Novel double-layer plate-truss combined rigid frame bridge upper-layer combined structure and construction method
一种新型双层板桁结合刚构桥上层组合构造及施工方法
CHEN KEJIAN (author) / CHEN TIANDI (author) / DAI SHENGYONG (author) / DENG YONGLING (author) / ZHANG YU (author) / XU SHUO (author) / CHEN JIANFENG (author) / LI RUI (author) / CAI CHAO (author) / XIANG LYUKAI (author)
2023-07-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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