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A platform for research: civil engineering, architecture and urbanism
Underground space stiff steel structure reverse construction method
The invention relates to the technical field of underground space steel structure construction, in particular to an underground space stiff steel structure reverse construction method, which comprises the following steps of: 1, excavating a B0 layer earthwork, installing a B0 layer stiff column node area and a stiff beam, connecting a temporary support with a surrounding temporary underpinning pile in a welding manner, and pouring the temporary support positioned in a bearing platform into concrete without dismantling; secondly, earthwork of the B1 layer is excavated, a stiff column node area and stiff beams of the B1 layer are installed, and temporary supports, located outside the bearing platform, of the B0 layer are dismantled; according to the construction method, the stiff steel structure is segmented according to the joint area stiff columns, the inlaying section stiff columns, the first section stiff columns and the stiff beams, construction is conducted layer by layer from top to bottom, the defects of a traditional construction method are overcome, the reverse construction precision is effectively controlled, the engineering quality is improved, hoisting is conducted in the underground space through a chain block unconventional method, use of large equipment is avoided, and the construction cost is reduced. The construction measure cost is reduced, and the method is of great significance to optimization and upgrading of the underground space stiff structure reverse construction method.
本发明涉及地下空间钢结构施工技术领域，具体为一种地下空间劲性钢结构逆作施工方法，步骤一：开挖B0层土方，安装B0层劲性柱节点区及劲性梁，临时支撑与周围临时托换桩焊接连接，位于承台内的临时支撑不拆除，浇筑至混凝土内；步骤二：开挖B1层土方，安装B1层劲性柱节点区及劲性梁，拆除B0层位于承台外的临时支撑。本发明，将劲性钢结构按照节点区劲性柱、嵌补段劲性柱、首节劲性柱及劲性梁进行分段，自上而下逐层施工，弥补传统施工方法的不足，有效控制逆作施工精度，提高工程质量，采用倒链非常规方法在地下空间进行吊装，避免大型设备的使用，降低施工措施成本，对于地下空间劲性结构逆作施工方法优化升级具有重要意义。
Underground space stiff steel structure reverse construction method
The invention relates to the technical field of underground space steel structure construction, in particular to an underground space stiff steel structure reverse construction method, which comprises the following steps of: 1, excavating a B0 layer earthwork, installing a B0 layer stiff column node area and a stiff beam, connecting a temporary support with a surrounding temporary underpinning pile in a welding manner, and pouring the temporary support positioned in a bearing platform into concrete without dismantling; secondly, earthwork of the B1 layer is excavated, a stiff column node area and stiff beams of the B1 layer are installed, and temporary supports, located outside the bearing platform, of the B0 layer are dismantled; according to the construction method, the stiff steel structure is segmented according to the joint area stiff columns, the inlaying section stiff columns, the first section stiff columns and the stiff beams, construction is conducted layer by layer from top to bottom, the defects of a traditional construction method are overcome, the reverse construction precision is effectively controlled, the engineering quality is improved, hoisting is conducted in the underground space through a chain block unconventional method, use of large equipment is avoided, and the construction cost is reduced. The construction measure cost is reduced, and the method is of great significance to optimization and upgrading of the underground space stiff structure reverse construction method.
本发明涉及地下空间钢结构施工技术领域，具体为一种地下空间劲性钢结构逆作施工方法，步骤一：开挖B0层土方，安装B0层劲性柱节点区及劲性梁，临时支撑与周围临时托换桩焊接连接，位于承台内的临时支撑不拆除，浇筑至混凝土内；步骤二：开挖B1层土方，安装B1层劲性柱节点区及劲性梁，拆除B0层位于承台外的临时支撑。本发明，将劲性钢结构按照节点区劲性柱、嵌补段劲性柱、首节劲性柱及劲性梁进行分段，自上而下逐层施工，弥补传统施工方法的不足，有效控制逆作施工精度，提高工程质量，采用倒链非常规方法在地下空间进行吊装，避免大型设备的使用，降低施工措施成本，对于地下空间劲性结构逆作施工方法优化升级具有重要意义。
Underground space stiff steel structure reverse construction method
一种地下空间劲性钢结构逆作施工方法
GAO HUI (author) / ZHU SUJUN (author) / TANG YANLI (author) / FU WENJING (author) / WANG JUNMEI (author)
2024-09-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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