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1987年12月,由国家计划委员会召开的全国节约钢材经验交流会指出,我国钢材供需矛盾紧张情况,已成为制约国民经济发展的一个因素;同时还指出,要推广预应力技术,进一步发展预应力混凝土结构;并把它作为一个方针政策定下来。30年来,我国预应力混凝土技术是在与钢筋混凝土结构、钢结构的竞争中成长壮大的。目前,预应力混凝土已成为我国最有发
In December 1987, the National Savings Steel Experience Exchange held by the National Planning Commission pointed out that the tension between the supply and demand of steel products in China has become a factor that restricts the development of the national economy. At the same time, it also pointed out that the prestressing technology should be promoted to further develop the prestressing force. Concrete structure; and set it as a policy. In the past 30 years, China’s prestressed concrete technology has grown in competition with reinforced concrete structures and steel structures. At present, prestressed concrete has become the most developed in China.