论文部分内容阅读
箱形截面的大、中跨径钢筋混凝土桥跨结构已在国内外获得广泛应用。全苏运输工程科学研究院与国立铁路桥梁勘测设计院协作,对图1所示结构图式和横截面的箱形连续梁进行了综合研究,截面尺寸列于下表中。对现有同类型的结构方案的分析说明:在材料耗费,钢筋布置、横截面布局等方面都很不一致。这种情形是由很
Box-shaped cross-section of large and medium-span reinforced concrete bridge structure has been widely used at home and abroad. All-Su Institute of Transportation Engineering, in collaboration with the National Railway Bridge Survey and Design Institute, conducted a comprehensive study of box-type continuous beams of structural pattern and cross-section as shown in Figure 1, with cross-sectional dimensions shown in the following table. The analysis of the existing structures of the same type shows that there is inconsistency in material consumption, reinforcement arrangement and cross-sectional layout. This situation is very much