A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bottom-evacuated large-span prestressed concrete beam structure system and construction method
The invention provides a bottom-evacuated large-span prestressed concrete beam structure system and a construction method, the bottom-evacuated large-span prestressed concrete beam structure system comprises concrete columns and concrete beams, the concrete beams are transversely arranged between two adjacent concrete columns, and the lower parts of the concrete beams are provided with inhaul cable structures. Matched profile steel structures are arranged in the concrete column and the concrete beam, post-cast strips are arranged at the two ends of the concrete beam respectively, and the post-cast strips are located at the joints of the profile steel structures. The structure system is an improvement on a traditional prestressed concrete structure, a formwork system combining a high-formwork comprehensive supporting system and a multi-point supporting system is adopted in the construction process of the structure, the supporting system is adjusted step by step according to monitoring data fed back by an automatic monitoring system and strength changes of concrete, and the construction efficiency is improved. And when the concrete strength meets the design requirement, conversion of a multi-point supporting system is achieved, and a favorable channel is provided for construction of the prestressed inhaul cable and the supporting rod.
本发明提出一种底部抽空大跨度预应力混凝土梁结构体系及施工方法，包括混凝土柱和混凝土梁，混凝土梁横向设置在相邻两个混凝土柱之间，混凝土梁下部设有拉索结构。混凝土柱内部和混凝土梁内部设有相配合的型钢结构，混凝土梁的两端分别设有后浇带，后浇带位于型钢结构的连接处。该结构体系是对传统预应力混凝土结构的改进，该结构施工过程中采用高支模全面支撑体系与多点支撑体系相结合的模架体系，根据自动监测系统反馈的监测数据以及混凝土的强度变化，逐步调整支撑体系，待混凝土强度达到设计要求时，实现多点支撑体系的转换，为预应力拉索和撑杆施工提供有利通道。
Bottom-evacuated large-span prestressed concrete beam structure system and construction method
The invention provides a bottom-evacuated large-span prestressed concrete beam structure system and a construction method, the bottom-evacuated large-span prestressed concrete beam structure system comprises concrete columns and concrete beams, the concrete beams are transversely arranged between two adjacent concrete columns, and the lower parts of the concrete beams are provided with inhaul cable structures. Matched profile steel structures are arranged in the concrete column and the concrete beam, post-cast strips are arranged at the two ends of the concrete beam respectively, and the post-cast strips are located at the joints of the profile steel structures. The structure system is an improvement on a traditional prestressed concrete structure, a formwork system combining a high-formwork comprehensive supporting system and a multi-point supporting system is adopted in the construction process of the structure, the supporting system is adjusted step by step according to monitoring data fed back by an automatic monitoring system and strength changes of concrete, and the construction efficiency is improved. And when the concrete strength meets the design requirement, conversion of a multi-point supporting system is achieved, and a favorable channel is provided for construction of the prestressed inhaul cable and the supporting rod.
本发明提出一种底部抽空大跨度预应力混凝土梁结构体系及施工方法，包括混凝土柱和混凝土梁，混凝土梁横向设置在相邻两个混凝土柱之间，混凝土梁下部设有拉索结构。混凝土柱内部和混凝土梁内部设有相配合的型钢结构，混凝土梁的两端分别设有后浇带，后浇带位于型钢结构的连接处。该结构体系是对传统预应力混凝土结构的改进，该结构施工过程中采用高支模全面支撑体系与多点支撑体系相结合的模架体系，根据自动监测系统反馈的监测数据以及混凝土的强度变化，逐步调整支撑体系，待混凝土强度达到设计要求时，实现多点支撑体系的转换，为预应力拉索和撑杆施工提供有利通道。
Bottom-evacuated large-span prestressed concrete beam structure system and construction method
一种底部抽空大跨度预应力混凝土梁结构体系及施工方法
LIU MINGLIANG (author) / WU PENGJUN (author) / ZHOU CHUNJUAN (author) / YANG PAN (author) / DENG FENG (author) / QU ZHOUXIN (author) / LI CHANGXI (author) / MA RUI (author) / TIAN JUFENG (author) / DONG CHENG (author)
2022-03-15
Patent
Electronic Resource
Chinese
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