A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Novel lower-layer combined structure of double-layer plate-truss combined rigid frame bridge and design method
The invention relates to a novel lower-layer combined structure of a double-layer plate-truss combined rigid frame bridge, which is characterized in that a lower chord of a steel truss extends into 0 # block concrete, an end bearing plate is arranged at the end part of the lower chord, a plurality of shear nails are arranged on the lower chord extending into the 0 # block concrete, and two adjacent end bearing plates are connected through a permanent-temporary combined part; the adjacent lower chords in the transverse bridge direction are connected through a lower-layer steel bottom plate and a lower cross beam, the lower cross beam is embedded into 0 # block concrete, lower chord filling concrete is poured into the lower chords, and a lower-layer concrete plate is poured on the lower-layer steel bottom plate and connected with the 0 # block concrete. The stress level of the lower chord is effectively reduced, the stress transfer mechanism of the interface of the lower chord and 0 # block concrete is improved, the overall stability of the lower portion of the steel truss girder is improved by reducing the pressure stress level of the steel structure, eliminating the local buckling risk of the steel structure and arranging the permanent and temporary combination component, and the accuracy, safety and convenience of 0 # block construction are improved.
本发明关于一种新型双层板桁结合刚构桥下层组合构造，钢桁梁下弦杆伸入0#块混凝土，且下弦杆端部设有端承板，伸入0#块混凝土的下弦杆上设有若干个剪力钉，相邻两个端承板之间通过永临结合部件连接，横桥向相邻的下弦杆之间通过下层钢底板和下横梁连接，下横梁嵌入0#块混凝土，下弦杆内灌注有下弦杆填充混凝土，下层钢底板上浇筑有下层混凝土板，下层混凝土板连接0#块混凝土。本发明有效降低下弦杆应力水平，改善下弦杆与0#块混凝土交界面应力传递机制，通过降低钢结构压应力水平，消除钢结构局部屈曲风险，提高钢桁梁下部整体稳定性，通过设置永临结合部件提高0#块施工的精确性、安全性和便捷性。
Novel lower-layer combined structure of double-layer plate-truss combined rigid frame bridge and design method
The invention relates to a novel lower-layer combined structure of a double-layer plate-truss combined rigid frame bridge, which is characterized in that a lower chord of a steel truss extends into 0 # block concrete, an end bearing plate is arranged at the end part of the lower chord, a plurality of shear nails are arranged on the lower chord extending into the 0 # block concrete, and two adjacent end bearing plates are connected through a permanent-temporary combined part; the adjacent lower chords in the transverse bridge direction are connected through a lower-layer steel bottom plate and a lower cross beam, the lower cross beam is embedded into 0 # block concrete, lower chord filling concrete is poured into the lower chords, and a lower-layer concrete plate is poured on the lower-layer steel bottom plate and connected with the 0 # block concrete. The stress level of the lower chord is effectively reduced, the stress transfer mechanism of the interface of the lower chord and 0 # block concrete is improved, the overall stability of the lower portion of the steel truss girder is improved by reducing the pressure stress level of the steel structure, eliminating the local buckling risk of the steel structure and arranging the permanent and temporary combination component, and the accuracy, safety and convenience of 0 # block construction are improved.
本发明关于一种新型双层板桁结合刚构桥下层组合构造，钢桁梁下弦杆伸入0#块混凝土，且下弦杆端部设有端承板，伸入0#块混凝土的下弦杆上设有若干个剪力钉，相邻两个端承板之间通过永临结合部件连接，横桥向相邻的下弦杆之间通过下层钢底板和下横梁连接，下横梁嵌入0#块混凝土，下弦杆内灌注有下弦杆填充混凝土，下层钢底板上浇筑有下层混凝土板，下层混凝土板连接0#块混凝土。本发明有效降低下弦杆应力水平，改善下弦杆与0#块混凝土交界面应力传递机制，通过降低钢结构压应力水平，消除钢结构局部屈曲风险，提高钢桁梁下部整体稳定性，通过设置永临结合部件提高0#块施工的精确性、安全性和便捷性。
Novel lower-layer combined structure of double-layer plate-truss combined rigid frame bridge and design method
一种新型双层板桁结合刚构桥下层组合构造及设计方法
CHEN TIANDI (author) / DAI SHENGYONG (author) / DENG YONGLING (author) / ZHANG YU (author) / LI WEI (author) / XU SHUO (author) / CHEN JIANFENG (author) / LI RUI (author) / CAI CHAO (author) / XIANG LYUKAI (author)
2023-06-23
Patent
Electronic Resource
Chinese
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