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A platform for research: civil engineering, architecture and urbanism
Screw-free semi-cantilever bridge comb tooth expansion device
The invention discloses a screw-free semi-cantilever bridge comb tooth expansion device. The device is characterized in that: two rows of positioning anchor plates are fixedly welded above a bridge abutment/beam body of a bridge expansion joint through pre-embedded anchoring steel bars, the top ends of the two rows of positioning anchor plates are oppositely and fixedly welded with the rear parts of semi-cantilever beams on the same side of the two rows of positioning anchor plates, the front ends of the two rows of positioning anchor plates are fixedly welded with a vertically arranged edge beam, and the front half parts of the semi-cantilever beams are staggered comb teeth. According to the invention, breakthrough transformation and promotion are carried out on a general full-cantilever comb tooth telescopic device at home and abroad at present; a full-cantilever structure is optimized into a semi-cantilever structure, so that steel is saved. Besides, the connecting structure of each part is simplified, the whole structure is stable and reliable, a bolt connecting structure is avoided, the manufacturing and mounting construction period is shortened, the reliability is effectively improved, and the cost is reduced.
一种无螺钉半悬臂桥梁梳齿伸缩装置，在桥梁伸缩缝的桥台/梁体上方通过预埋的锚固钢筋固定焊接有两列定位锚板，两列定位锚板的顶端与各自列同侧半悬臂梁后部相对固定焊接，两列定位锚板的前端与一片竖向设置的边梁固定焊接，半悬臂梁的前半部为交错设置的梳齿状。本发明不仅将目前国内外通用全悬臂梳齿伸缩装置进行了突破性改造和提升：将全悬臂构造优化为半悬臂构造，节省钢材。而且将各部件的连接结构简化，整体结构稳固可靠，避免了螺栓连接结构，制作和安装施工周期缩短，有效提高了可靠性并降低了成本。
Screw-free semi-cantilever bridge comb tooth expansion device
The invention discloses a screw-free semi-cantilever bridge comb tooth expansion device. The device is characterized in that: two rows of positioning anchor plates are fixedly welded above a bridge abutment/beam body of a bridge expansion joint through pre-embedded anchoring steel bars, the top ends of the two rows of positioning anchor plates are oppositely and fixedly welded with the rear parts of semi-cantilever beams on the same side of the two rows of positioning anchor plates, the front ends of the two rows of positioning anchor plates are fixedly welded with a vertically arranged edge beam, and the front half parts of the semi-cantilever beams are staggered comb teeth. According to the invention, breakthrough transformation and promotion are carried out on a general full-cantilever comb tooth telescopic device at home and abroad at present; a full-cantilever structure is optimized into a semi-cantilever structure, so that steel is saved. Besides, the connecting structure of each part is simplified, the whole structure is stable and reliable, a bolt connecting structure is avoided, the manufacturing and mounting construction period is shortened, the reliability is effectively improved, and the cost is reduced.
一种无螺钉半悬臂桥梁梳齿伸缩装置，在桥梁伸缩缝的桥台/梁体上方通过预埋的锚固钢筋固定焊接有两列定位锚板，两列定位锚板的顶端与各自列同侧半悬臂梁后部相对固定焊接，两列定位锚板的前端与一片竖向设置的边梁固定焊接，半悬臂梁的前半部为交错设置的梳齿状。本发明不仅将目前国内外通用全悬臂梳齿伸缩装置进行了突破性改造和提升：将全悬臂构造优化为半悬臂构造，节省钢材。而且将各部件的连接结构简化，整体结构稳固可靠，避免了螺栓连接结构，制作和安装施工周期缩短，有效提高了可靠性并降低了成本。
Screw-free semi-cantilever bridge comb tooth expansion device
无螺钉半悬臂桥梁梳齿伸缩装置
LU YINGHUI (author) / LU XIAOHUA (author)
2021-07-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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