塔架结构是化工装置中的重要设施,根椐其特点,常采用人字桅杆扳倒法吊装。塔架在吊装过程中所承受的载荷复杂、多变。分析、计算繁复。目前工程实际中往往采用经验或静态定性分析、计算,而忽略了吊装过程中的变化情况,不能合理地采取各种措施,易导致塔架破坏、吊装失败。本文在运动分析的基础上推导出了危险工况的计算公式,为吊装工艺设计提供了依据。 The tower structure is an important facility in a chemical plant. Based on its characteristics, it is often lifted using a herringbone lever. The load that the tower bears during the lifting process is complex and changeable. Analysis and calculation are complicated. At present, engineering practice often uses empirical or static qualitative analysis and calculations. It ignores changes in the hoisting process and cannot reasonably adopt various measures, which can easily lead to tower failure and hoisting failure. Based on the analysis of the motion, this paper deduces the calculation formula of dangerous working conditions and provides the basis for the design of lifting technology.