采用空间薄壁板壳元与空间梁元混合离散模型对大吨位起重机钢丝绳缠绕卷筒进行有限元分析，将有限元方法与进退法优化方法耦合形成数值算法进而对卷筒进行优化设计。
The numerical method represents a coupling between the optimum method of advance and retreat and the finite element analysis for the design on large hoist drums of cranes that is an actual structure.
研究目的：解决自行式移动模架法现浇客运专线铁路大跨度、大吨位箱梁的关键施工技术、施工工艺，以适应客运专线桥梁的快速施工。
The piers of the Bridge are of single-and double-column piers without capping beams and the concrete continuous box girders atop the piers are constructed by movable shuttering form.
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