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A platform for research: civil engineering, architecture and urbanism
Prefabricated small box girder bridge wet joint overlapping construction method
The invention provides a prefabricated small box girder bridge wet joint overlapping construction method. The method comprises the steps that prefabricated reinforced concrete overlapping plates are manufactured; a plurality of supporting pieces arranged in the width direction of the prefabricated reinforced concrete laminated slab are installed over the prefabricated reinforced concrete laminated slab; the wet joint supporting formwork is hoisted to the wet joint position between the two small prefabricated box girders, and the two ends of each supporting piece are erected on the two small prefabricated box girders correspondingly; and carrying out concrete pouring on the cast-in-place reinforced concrete wet joint. The prefabricated reinforced concrete laminated slab is arranged at the position of the longitudinal wet joint of the small prefabricated box girder, serves as one of components of the wet joint structure and also serves as a permanent formwork of the cast-in-place reinforced concrete laminated layer, manual climbing dismantling work of a cast-in-place concrete bottom formwork in the later period of the wet joint is omitted, and the construction efficiency is improved. The formwork removal ladder truck is prevented from occupying the current road at the bottom of the bridge for a long time, and traffic collision and high-place operation potential safety hazards are reduced.
本发明提供了一种预制小箱梁桥湿接缝叠合施工方法，该方法包括：制作预制钢筋混凝土叠合板；在预制钢筋混凝土叠合板的正上方安装若干个沿预制钢筋混凝土叠合板宽度方向布置的支撑件；将湿接缝支撑模板吊运至两个预制小箱梁之间的湿接缝位置，将各个支撑件的两端分别架设在两个预制小箱梁上；对现浇钢筋混凝土湿接缝进行混凝土的浇筑。本发明通过在预制小箱梁纵向湿接缝位置设置预制钢筋混凝土叠合板，既作为湿接缝结构的组成部分之一，又作为现浇钢筋混凝土叠合层的永久性模板，免去湿接缝后期现浇混凝土底模的人工登高拆除工作，避免拆模登高车长期占用桥梁底现状道路，减少交通碰撞和高处作业安全隐患。
Prefabricated small box girder bridge wet joint overlapping construction method
The invention provides a prefabricated small box girder bridge wet joint overlapping construction method. The method comprises the steps that prefabricated reinforced concrete overlapping plates are manufactured; a plurality of supporting pieces arranged in the width direction of the prefabricated reinforced concrete laminated slab are installed over the prefabricated reinforced concrete laminated slab; the wet joint supporting formwork is hoisted to the wet joint position between the two small prefabricated box girders, and the two ends of each supporting piece are erected on the two small prefabricated box girders correspondingly; and carrying out concrete pouring on the cast-in-place reinforced concrete wet joint. The prefabricated reinforced concrete laminated slab is arranged at the position of the longitudinal wet joint of the small prefabricated box girder, serves as one of components of the wet joint structure and also serves as a permanent formwork of the cast-in-place reinforced concrete laminated layer, manual climbing dismantling work of a cast-in-place concrete bottom formwork in the later period of the wet joint is omitted, and the construction efficiency is improved. The formwork removal ladder truck is prevented from occupying the current road at the bottom of the bridge for a long time, and traffic collision and high-place operation potential safety hazards are reduced.
本发明提供了一种预制小箱梁桥湿接缝叠合施工方法，该方法包括：制作预制钢筋混凝土叠合板；在预制钢筋混凝土叠合板的正上方安装若干个沿预制钢筋混凝土叠合板宽度方向布置的支撑件；将湿接缝支撑模板吊运至两个预制小箱梁之间的湿接缝位置，将各个支撑件的两端分别架设在两个预制小箱梁上；对现浇钢筋混凝土湿接缝进行混凝土的浇筑。本发明通过在预制小箱梁纵向湿接缝位置设置预制钢筋混凝土叠合板，既作为湿接缝结构的组成部分之一，又作为现浇钢筋混凝土叠合层的永久性模板，免去湿接缝后期现浇混凝土底模的人工登高拆除工作，避免拆模登高车长期占用桥梁底现状道路，减少交通碰撞和高处作业安全隐患。
Prefabricated small box girder bridge wet joint overlapping construction method
一种预制小箱梁桥湿接缝叠合施工方法
HUANG YONGMING (author) / ZHANG YANG (author) / YUAN HONGKUI (author) / YU LINAN (author) / WANG CHUNYAN (author)
2023-10-20
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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