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龙溪塔为七层六边形砖木混合结构,因其西侧水阳江需拓宽治理,决定将其向东北方向平移129m进行保护,对平移过程中采用的由下部钢筋混凝土保护筒和上部钢结构主动施力支撑组成的新型防倾覆系统设计进行详细介绍,并采用ANSYS软件进行有限元分析。结果表明,增设防倾覆系统后,在总重仅增加10%的情况下,抗倾覆安全系数K提高3.0倍,主体结构顶点位移下降54%,避免了塔身拉应力破坏;新型防倾覆系统与塔体采用可拆除柔性连接,既能保证塔体移位过程安全,又能保留塔体原有历史外观,其成果适用于古塔等高耸建筑的平移工程。
Longxi tower is a seven-layer hexagonal brick-wood mixed structure, because of its west side of the Yangyang River need to broaden the control, decided to shift to the northeast 129m for protection, the translation process used by the lower reinforced concrete protection tube and the upper steel The structural design of a new type of anti-tip system composed of active force support is introduced in detail, and the finite element analysis is carried out by ANSYS software. The results show that with the addition of the anti-overturning system, the anti-overturning safety factor K increases by 3.0 times and the displacement of the main structure by 54% when the total weight increases by only 10%. The new anti-overturning system and The tower body adopts the detachable flexible connection, which can ensure the safety of the tower displacement process and retain the original historical appearance of the tower body. The achievements are applicable to the translation works of towering buildings such as the ancient tower.