摘要
介绍了五座城市立交桥或高架桥的钢筋混凝土连续箱梁翼板横向开裂的情况。应用剪力滞理论，计算了这五座桥的有效分布宽度和剪滞系数，并与英国规范以及德国规范的计算结果作了比较。针对我国桥梁规范还缺乏有关箱梁有效分布宽度的规定。
The cases of transverse cracking in the flange slabs of reinforced concrete continuous box girders of five urban flyovers or viaducts are introduced. The effective distribution width and shear lag coefficients are calculated in accordance with the shear lag theories concerned, the results obtained from the calculation are in turn compared with those in British Standard (BS) and Deutsche Industrie Normen (DIN), and finally several proposals are made considering the shortage of the provisions for effective distribution width of box girder in bridge standards in China.
出处
《桥梁建设》
EI
CSCD
北大核心
1997年第1期41-45,共5页
Bridge Construction
关键词
连续箱梁
横向裂缝
钢筋混凝土桥
翼板
continuous box girder, transverse cracking, shear lag effect, effective width
