【摘要】 对国内三个历史阶段的公路桥涵设计通用规范中有关公路桥涵汽车荷载的形式、量值、折减系数、冲击系数等以及其作用、在选定结构上的响应进行了较为系统的分析与比较。对现有规范中汽车荷载的合理性做了初步探讨。最后提出了今后可能的发展趋势。更多还原

【Abstract】 The form,magnitude,multiple presence factors and dynamic load allowance of vehicular live loads are discussed,which have been selected in three general codes for design of highway bridges and culverts of different historical periods in recent years in the homeland.The responses of the selected structure which are aroused by vehicular live loads are comparatively systematically are analyzed and compared in the paper.The rationality of the up-to-date vehicular live loads and the developing trend of the codes have been discussed and suggested.更多还原