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作者曾于1956和1965年对預应力混凝土桥的发展,先后作过两次较为系統的述评。近来,在为中国大百科全书土木卷撰写《預应力混凝土桥》条目时,又查考了有关资料,进一步分析了若干問题,获得了一些新认識。但由于上述条目的篇幅有限。未能全部写入,故特另整理成文,以供同志們参閱指正。上述条目中未包括斜拉桥(另列条目)。但为了使本文完整,仍略提一二。
The author has made two systematic reviews in 1956 and 1965 on the development of prestressed concrete bridges. Recently, when writing “prestressed concrete bridge” entries for the civil encyclopedia of China’s civil and wood volumes, it also examined relevant information, further analyzed some issues and obtained some new understandings. However, due to the limited space of the above items. Failed to write all, it is another special order, for comrades to refer to correct. Cable-stayed bridges (separate entries) are not included in the above items. However, for the sake of completeness of this article, I still slightly mention it.