A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large cantilever prestress cast-in-place concrete cover beam and construction method
The invention relates to a large cantilever prestress cast-in-place concrete cover beam and a construction method. The construction method comprises the following steps of foundation treatment, support erection, support prepressing, operation platform erection, formwork installation, reinforcement cage installation and cover beam pouring. The method has the beneficial effects that two capping beam support systems are provided, namely the column wrapping steel frame reinforcing support and the hoop integral type overhanging support, and the problem of erecting of a large cantilever capping beam support is solved; a steel box groove support accurate pre-pressing loading technology is adopted, fine sand is injected into a steel box groove, the support is loaded and pre-pressed, the deformation of a support system is emphatically monitored, and the safety and stability of the bent cap support are guaranteed. A hoop pier column independent operation platform is adopted, and the independent hoop is arranged on the pier column to support the operation platform, so that the safety and the stability of the operation platform are improved.
本发明涉及一种大悬臂预应力现浇混凝土盖梁及施工方法，包括以下步骤：地基处理、支架搭设、支架预压、操作平台搭设、模板安装、钢筋骨架安装、盖梁浇筑。本发明的有益效果是：提供了两种盖梁支架体系：包柱钢架补强支架、抱箍整体式悬挑支架，解决了大悬臂盖梁支架搭设难题；采用钢箱槽支架精确预压加载技术，向钢箱槽中注入细砂，对支架进行加载预压，重点监测支架体系形变，保障了盖梁支架的安全稳定性；采用抱箍墩柱独立式操作平台，在墩柱上设置独立抱箍支承操作平台，提升了操作平台的安全稳定性。
Large cantilever prestress cast-in-place concrete cover beam and construction method
The invention relates to a large cantilever prestress cast-in-place concrete cover beam and a construction method. The construction method comprises the following steps of foundation treatment, support erection, support prepressing, operation platform erection, formwork installation, reinforcement cage installation and cover beam pouring. The method has the beneficial effects that two capping beam support systems are provided, namely the column wrapping steel frame reinforcing support and the hoop integral type overhanging support, and the problem of erecting of a large cantilever capping beam support is solved; a steel box groove support accurate pre-pressing loading technology is adopted, fine sand is injected into a steel box groove, the support is loaded and pre-pressed, the deformation of a support system is emphatically monitored, and the safety and stability of the bent cap support are guaranteed. A hoop pier column independent operation platform is adopted, and the independent hoop is arranged on the pier column to support the operation platform, so that the safety and the stability of the operation platform are improved.
本发明涉及一种大悬臂预应力现浇混凝土盖梁及施工方法，包括以下步骤：地基处理、支架搭设、支架预压、操作平台搭设、模板安装、钢筋骨架安装、盖梁浇筑。本发明的有益效果是：提供了两种盖梁支架体系：包柱钢架补强支架、抱箍整体式悬挑支架，解决了大悬臂盖梁支架搭设难题；采用钢箱槽支架精确预压加载技术，向钢箱槽中注入细砂，对支架进行加载预压，重点监测支架体系形变，保障了盖梁支架的安全稳定性；采用抱箍墩柱独立式操作平台，在墩柱上设置独立抱箍支承操作平台，提升了操作平台的安全稳定性。
Large cantilever prestress cast-in-place concrete cover beam and construction method
大悬臂预应力现浇混凝土盖梁及施工方法
YANG LEI (author) / ZHANG XIAODONG (author) / XIA WEIHAO (author) / SU YING (author) / LIU YIRAN (author) / ZHANG KANGKANG (author) / HU ANG'ANG (author) / LIU JIANJUN (author) / CHEN YI (author) / WU QIYUAN (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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