几种相关新旧公路规范荷载效应的比较

Comparisons of the Load Effect in Highway Specifications Old and New

对现行的JTGD60—2004《公路桥涵设计通用规范》、CJJ77—1998《城市桥梁设计荷载标准》与原来的JTJ021—1989《公路桥涵设计通用规范》之间不同荷载方式和取值进行了比较,并分别对他们引起的荷载效应之间存在的实际差异进行了比较和分析,从而给老桥改扩建和利用时,经常碰见的上述三个规范、标准之间的比较问题提供了切实可行的依据。

A comparison is made between the current JTG D60-2004, 'General Specification for Highway Bridge and Culvert Design' and CJJ 77-1998, 'Load Standard for Urban Bridge Design' and the former JTJ 021-1989, 'General Specification for Highway Bridge and Culvert Design' in the form of load and load value, with an analysis of the actual difference in the load effects caused respectively, which provides practical basis for comparison of the said specifications frequently met during reconstruction of old bridges.