【摘要】 分析了结构设计、施工中引起预应力值偏低的主要原因，并对目前桥梁结构的预应力混凝土构件按“极限承载能力”进行设计提出了设计与施工统一性的观点，可供工程技术者参考．更多还原

【Abstract】 This article analyzes the major causes in view of present quality deficiency, especially girder is easily cracked. And it puts forward the uniform idea of design and construction, which considers the present design on the base of limited load bearing capacity.更多还原