A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fabricated adjustable pre-camber steel tube truss foundation pit supporting structure and construction and installation method
The invention relates to the technical field of construction buildings, in particular to a fabricated adjustable-pre-camber steel pipe truss foundation pit supporting structure and a construction installation method.The fabricated adjustable-pre-camber steel pipe truss foundation pit supporting structure comprises an annular underground diaphragm wall arranged in a foundation pit in a supported mode, and a horizontally-arranged supporting beam is installed in an annular cavity of the underground diaphragm wall; the supporting beam comprises extension sections and standard rod pieces, and the extension sections and the standard rod pieces are sequentially connected in the extension direction of the extension sections. When the extension section is in an extension state, the two ends of the supporting beam abut against the cavity wall of the underground diaphragm wall, and approximate equivalent stiffness is generated in the supporting beam. According to the method, the approximate equivalent stiffness of the supporting beam can be accurately calculated, so that the hidden danger that the supporting beam is broken due to over-limit stress is eliminated, and the construction safety is improved.
本发明涉及施工建筑技术领域，具体是装配式可调预拱度钢管桁架基坑支护结构及施工安装方法，包括支撑布置在基坑内的环状的地连墙，地连墙的环腔内安装有水平布置的支撑梁；支撑梁包括伸长段和标准杆件，各伸长段和各标准杆件沿伸长段伸缩方向依次连接；伸长段处于伸长状态时，支撑梁的两端均抵紧在地连墙的腔壁上，且支撑梁内部产生近似等效刚度；本发明能够较为准确的计算出支撑梁的近似等效刚度，进而消除支撑梁因受力超限而断裂的隐患，提高施工的安全。
Fabricated adjustable pre-camber steel tube truss foundation pit supporting structure and construction and installation method
The invention relates to the technical field of construction buildings, in particular to a fabricated adjustable-pre-camber steel pipe truss foundation pit supporting structure and a construction installation method.The fabricated adjustable-pre-camber steel pipe truss foundation pit supporting structure comprises an annular underground diaphragm wall arranged in a foundation pit in a supported mode, and a horizontally-arranged supporting beam is installed in an annular cavity of the underground diaphragm wall; the supporting beam comprises extension sections and standard rod pieces, and the extension sections and the standard rod pieces are sequentially connected in the extension direction of the extension sections. When the extension section is in an extension state, the two ends of the supporting beam abut against the cavity wall of the underground diaphragm wall, and approximate equivalent stiffness is generated in the supporting beam. According to the method, the approximate equivalent stiffness of the supporting beam can be accurately calculated, so that the hidden danger that the supporting beam is broken due to over-limit stress is eliminated, and the construction safety is improved.
本发明涉及施工建筑技术领域，具体是装配式可调预拱度钢管桁架基坑支护结构及施工安装方法，包括支撑布置在基坑内的环状的地连墙，地连墙的环腔内安装有水平布置的支撑梁；支撑梁包括伸长段和标准杆件，各伸长段和各标准杆件沿伸长段伸缩方向依次连接；伸长段处于伸长状态时，支撑梁的两端均抵紧在地连墙的腔壁上，且支撑梁内部产生近似等效刚度；本发明能够较为准确的计算出支撑梁的近似等效刚度，进而消除支撑梁因受力超限而断裂的隐患，提高施工的安全。
Fabricated adjustable pre-camber steel tube truss foundation pit supporting structure and construction and installation method
装配式可调预拱度钢管桁架基坑支护结构及施工安装方法
SHEN QIHAN (author) / XIE QIANG (author) / LIU JUNJIE (author) / WANG FENGQIN (author) / WANG JINGFENG (author)
2023-11-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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