An integrated preliminary design of a tower crane metal structure, including head, jib and counter-jib, was carried out based on the revised CO, taking fully consideration of the inherent coupling mechanisms among the three components.

• 通过采用改进的协作优化算法对塔式起重机金属结构的塔帽－吊臂－平衡臂进行一体化方案设计，充分考虑了这三个子系统之间的协同机制，得到了具有整体最优性的设计结果。