Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Integral lifting method of single-layer spherical reticulated shell dome
The invention discloses an integral lifting method for a single-layer spherical reticulated shell dome. The integral lifting method comprises the steps of arranging a lifting unit supporting jig frame, assembling ground scattered pieces, installing upper and lower lifting suspension points and prestress tension cables, tensioning prestress in batches, trying to lift and continuously lift, butting, filling and closing, graded slow unloading, dismounting an auxiliary device and the like. The positions of the upper lifting point and the lower lifting point are reasonable in design, the lower lifting point is used for arranging the prestress tensioning cable, prestress tensioning is conducted before the reticulated shell is lifted, internal stress of all rod pieces and nodes is effectively adjusted, structural deformation in the lifting process is reduced, and meanwhile horizontal thrust generated by the reticulated shell at the support can be balanced; the construction difficulty is low, the efficiency is high, and the construction quality can be well guaranteed; aloft work is reduced, multi-specialty cooperative construction and multi-process interpenetration work are achieved, the input of measure cost is reduced, and the construction period is reasonably optimized; the stability in the whole lifting process is higher through pre-stress tensioning and unloading in batches and precise control over the lifting process.
本发明公开了一种单层球面网壳穹顶的整体提升方法，包括设置提升单元支撑胎架、地面散片拼装、安装上下提升吊点和预应力张拉索、分批次张拉预应力、试提升和连续提升、对接补档合拢、分级缓慢卸载、拆除辅助装置等步骤。本发明的上、下吊点位置设计合理，并利用下吊点进行预应力张拉索设置，在网壳提升前预应力张拉，有效地调节各杆件及节点内应力，减小提升过程中结构变形，同时可以平衡网壳在支座处产生的水平推力；不仅施工难度低、效率高，而且能很好地保证施工质量；减少高空作业，实现多专业协同施工，多工序穿插工作，降低了措施费的投入，合理优化工期；预应力分批次张拉和卸载以及提升过程的精密控制使得整体提升过程中稳定性更高。
Integral lifting method of single-layer spherical reticulated shell dome
The invention discloses an integral lifting method for a single-layer spherical reticulated shell dome. The integral lifting method comprises the steps of arranging a lifting unit supporting jig frame, assembling ground scattered pieces, installing upper and lower lifting suspension points and prestress tension cables, tensioning prestress in batches, trying to lift and continuously lift, butting, filling and closing, graded slow unloading, dismounting an auxiliary device and the like. The positions of the upper lifting point and the lower lifting point are reasonable in design, the lower lifting point is used for arranging the prestress tensioning cable, prestress tensioning is conducted before the reticulated shell is lifted, internal stress of all rod pieces and nodes is effectively adjusted, structural deformation in the lifting process is reduced, and meanwhile horizontal thrust generated by the reticulated shell at the support can be balanced; the construction difficulty is low, the efficiency is high, and the construction quality can be well guaranteed; aloft work is reduced, multi-specialty cooperative construction and multi-process interpenetration work are achieved, the input of measure cost is reduced, and the construction period is reasonably optimized; the stability in the whole lifting process is higher through pre-stress tensioning and unloading in batches and precise control over the lifting process.
本发明公开了一种单层球面网壳穹顶的整体提升方法，包括设置提升单元支撑胎架、地面散片拼装、安装上下提升吊点和预应力张拉索、分批次张拉预应力、试提升和连续提升、对接补档合拢、分级缓慢卸载、拆除辅助装置等步骤。本发明的上、下吊点位置设计合理，并利用下吊点进行预应力张拉索设置，在网壳提升前预应力张拉，有效地调节各杆件及节点内应力，减小提升过程中结构变形，同时可以平衡网壳在支座处产生的水平推力；不仅施工难度低、效率高，而且能很好地保证施工质量；减少高空作业，实现多专业协同施工，多工序穿插工作，降低了措施费的投入，合理优化工期；预应力分批次张拉和卸载以及提升过程的精密控制使得整体提升过程中稳定性更高。
Integral lifting method of single-layer spherical reticulated shell dome
单层球面网壳穹顶的整体提升方法
ZHANG QINGHUA (Autor:in) / ZHAO HU (Autor:in) / DING DAWEI (Autor:in) / HU SHANXI (Autor:in) / HARA YOSHIMOTO (Autor:in)
04.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
Spherical reticulated shell, central node of spherical reticulated shell and suspended dome
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