Design and Analysis of a Lightweight Modular Integrated Steel Platform Supported by Climbing Cones and Tripod Brackets
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摘要: 为提升整体钢平台的布局灵活性、模块化程度与经济性,以宁波某超高层项目为工程背景,研发了一种基于爬锥三角架支撑的轻量化、模块化整体钢平台。该平台通过创新拼装式节点与爬锥锚固系统,提升了其模块化、轻量化与高周转性的综合性能。为评估其安全性,进行了有限元数值模拟、爬锥承载力试验与现场堆载试验。研究结果表明:在作业与顶升阶段,平台整体刚度良好,最大位移均满足规范限值,构件最大应力比低于0.82,承载力富余充足;爬锥锚固系统的抗剪承载力安全系数高于2.93,可靠性高;现场堆载试验中构件应力水平与有限元结果吻合良好。Abstract: To enhance the layout flexibility, modularity, and economic efficiency of integrated steel platforms, a lightweight modular integrated steel platform supported by climbing cones and tripod brackets was developed for a super high-rise project in Ningbo. This system incorporates innovative assembled connections and a climbing-cone anchorage system, achieving comprehensive performance improvements in modularity, lightweight design, and high reusability. To evaluate its safety, finite element simulations, climbing-cone bearing capacity tests, and on-site load tests were conducted. The results demonstrated that during both the working and jacking stages, the platform exhibited good overall stiffness, with maximum displacements within code-specified limits, a maximum member stress ratio below 0.82, and sufficient reserve capacity. The climbing-cone anchorage system showed a shear capacity safety factor greater than 2.93, indicating high reliability. Furthermore, the structural stresses measured during the on-site load test closely aligned with the finite element analysis results.
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