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由苏州混凝土水泥制品研究院承担的部分预应力圆孔板研究和刻痕钢丝在农房楼屋面构件中的应用两个研究项目于1985年12月通过技术鉴定。鉴定委员会由建材研究院、国家建材局科技委、陕西建科所、浙江建科所等单位的专家和工程技术人员组成。与会代表经过认真讨论一致认为: (1)由于运用了预应力与非预应力混合配筋的部分预应力技术,不但可使预应力混凝土多孔板在破坏前有较明显征兆,改善全预应力结构的脆性
The research of the partial prestressed circular hole plate undertaken by the Suzhou Concrete Research Institute of Concrete and the application of the nicked steel wire in the roofing components of the agricultural house were passed in December 1985 by the technical appraisal. The appraisal committee is made up of experts and engineering technicians from the Building Materials Research Institute, the Science and Technology Committee of the State Building Materials Administration, the Shaanxi Institute of Construction Science, the Zhejiang Jianke Institute and other units. After careful discussions, the participants agreed that: (1) Due to the use of partial prestressing techniques with prestressed and non-prestressed hybrid reinforcement, not only can the prestressed concrete porous panels have more obvious signs before failure, but also improve the overall prestressed structure. Brittleness