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一、前言本文根据城乡建设部(1982年)建工科字第261号1982年全国建筑科学技术发展计划中心课题24号“部分预应力混凝土基本性能及应用的研究”的总专题,由北力交大对目前工程中大量采用的低碳冷拔钢丝预应力圆孔板,通过试验进行脆断分析,并提出改进建议。本专题的研究方案由中国建筑科学研究院与北方交大共同制定,具体由北方交大负责。这次共试验了七块板。其中五块板由北京铁路局北京工程构件厂提供,其余二块由铁道部建厂局一处提供。试验于1983年9、10月在北方交大建筑系工程结构试验室进行。参加试验的有建筑系建筑结构教研室汪一骏、谷钧宏、马宝华、陈维纯和李宏
I. INTRODUCTION This article is based on the general topic of the “Research on Basic Performance and Application of Partially Prestressed Concrete” of the National Building Science and Technology Development Plan Center No. 24 of the Ministry of Urban and Rural Construction (1982) Construction Engineering Section No. 261, 1982. In order to carry out the brittle fracture analysis of low-carbon cold drawn steel wire pre-stressed circular orifice plates that are widely used in the current projects, we have proposed improvements. The research plan for this topic is jointly formulated by the China Academy of Building Research and Northern Jiaotong University, and is specifically responsible for the Northern Jiaotong University. A total of seven boards were tested this time. Five of them are provided by the Beijing Railway Construction Bureau Beijing Engineering Component Factory, and the remaining two are provided by the Ministry of Railways Construction Bureau. The test was carried out in September and October of 1983 in the Engineering Structure Laboratory of the Department of Architecture of Northern Jiaotong University. Participating in the trial were Wang Yijun, Gu Yanhong, Ma Baohua, Chen Weichun, and Li Hong.