中国土木工程学会于1991年10月23日至29日在山东烟台举办全国预应力混凝土实用技术研讨班,来自全国各地的100多名工程技术人员参加了研讨。研讨班介绍了国内外有粘结及无粘结预应力工程技术的发展近况,预应力混凝土结构设计规范的演变与发展;详细讲授了预应力度的计算概念,按预应力度设计有限预应力、部分预应力结构的方法;同时还讲述了 The China Civil Engineering Society held a national seminar on practical techniques of prestressed concrete in Yantai, Shandong from October 23rd to 29th, 1991. More than 100 engineers and technicians from all over the country participated in the seminar. The seminar introduced the development status of the bonded and unbonded prestressed engineering technology at home and abroad, the evolution and development of the prestressed concrete structural design specification; detailedly explained the calculation concept of the prestressed degree, and designed the limited prestressing force according to the prestressed degree. , partial prestressed structure method; also described