梁桥荷载试验评定结果的影响因素分析

桥梁荷载试验理论分析计算工作是根据桥梁的实际资料和有关数据,再参照原设计文件、施工文件及竣工文件,对桥梁结构进行设计荷载和试验荷载作用下的理论检算。该工作必须对实际结构进行简化,通常对截面以模型形式、约束条件、材料参数及荷载情况等在合理的条件下进行简化模拟,从而满足工程应用的需要,但也由此引入了一些误差。该文结合工程实例,具体对荷载试验结果评定的两大主要影响因素进行定量分析。结果表明,桥面铺装层对荷载试验结果评定的影响较大,荷载加载位置的影响较小。

Influencing Factors Analysis of Assessing Bridge Static Load Test Result

The work of bridge load test theory analysis and calculation is theoretical calculation of bridge structure design loads and test loads,according to the actual data and relevant data,and refering to the original design documents,construction documents and as-built documents.This work should simplify practical model for meeting the needs of engineering application,usually simplify the simulation in reasonable condition on the actual structure of section,such as model form,constraint condition,material parameters and load conditions.But it also leads to some errors.Combining with the project examples,this paper quantitatively analyzed two main influence factors of assessing load test results.The results showed that the influence of bridge deck pavement evaluation was biggest and the influence of loading positions was second for assessing load test results.