以《公路桥梁承载能力检测评定规程》(JTG/T J21-2011)为依据,通过对某预应力空心板桥进行缺损状态检测评定、桥梁材质状况及状态参数检测评定和结构检算,实现了检测结果定量化,并根据检测结果引入检算系数修正极限状态表达式,最终对该预应力空心板桥进行了承载能力评定,评定结果为该桥承载能力极限状态和正常使用极限状态均满足要求。 Based on JTG / T J21-2011, the testing and assessment of defect status, bridge material status, state parameters and structural inspection of a prestressed hollow slab bridge were carried out. The test result is quantified, and based on the test results, the correction limit state expression is introduced. Finally, the bearing capacity of the prestressed hollow slab bridge is assessed. The assessment results show that the bridge bearing capacity limit state and normal use limit state meet the requirements .