同样一套仓库构件，装柜方案不同，运费能差 15%。装柜率是怎么「设计」出来的。The same warehouse kit can cost 15% more just by loading it badly. Container utilization is designed, not lucky.
海运费按「箱」计价而不是按「吨」，所以散件钢构的运输成本核心指标是装柜率。同样一套 3,000㎡ 仓库构件，优化装柜方案与随意装箱，柜量可以相差 2–3 个，运费差 15% 以上。
提高装柜率的关键在构件拆分设计阶段：梁柱分段长度要匹配集装箱内净尺寸（40 尺高柜约 12m 内），檩条长度通常按 11.8m 设计；长构件与散件的搭配顺序、托架的重复利用、重件沉底原则，都影响单柜装载量。
另一个常被忽略的成本：卸货港的搬运。装柜图如果标注每件重量与吊点，目的港可直接机卸，人卸改机卸省下的时间和费用，往往超过一柜运费。
Ocean freight is priced per container, not per tonne — so the core metric for knocked-down steel is container utilization. The same 3,000 m² warehouse kit can differ by 2–3 containers between an optimized loading plan and careless boxing: 15%+ in freight.
The key lies in member-breakdown design: segment lengths must match container internals (about 12m inside a 40ft high-cube), purlins typically designed at 11.8m. The sequence of long members mixed with small parts, reusable stillages, and heavy-items-first loading all affect per-container volume.
An often-missed cost: unloading at destination. If the loading plan marks each member's weight and lifting points, the port can machine-unload directly — the time and money saved versus manual handling often exceeds a full container's freight.
上海雄岚钢结构 · 出口 60+ 国家 · EN 1090 CE 认证 · 24 小时内工程师回复
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