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国家电力公司电力建设研究所开发的外包钢自承重结构，是在普通外包钢结构基础上加以改进而成的一种新型结构。经在“安八改扩”工程中试用表明，采用此结构可以利用其自身骨架悬挂模板，承受施工荷载，因而可节省大量脚手架，大大简化支撑系统，节约资金，减轻工人的劳动强度，缩短工期。此新结构体系进一步加以完善之后，效益将会更加显著。
The self-supporting steel-encased structure developed by the National Electric Power Corporation’s Electric Power Construction Institute is a new type of structure that has been improved on the basis of ordinary steel structures. The trials in the “Anba Reformation” project show that this structure can use its own skeleton to suspend the formwork and bear the construction load, which can save a lot of scaffolding, greatly simplify the support system, save funds, reduce the labor intensity of workers, and shorten the construction period. After this new structural system is further improved, the benefits will be more significant.