某人行天桥的可靠性鉴定

Reliability appraisal of a pedestrian overcorossing

对某钢结构人行天桥的动力特性、焊缝缺陷、应力和变形、钢构件截面尺寸和锈蚀情况进行了检测,按规范要求验算了结构的整体稳定和局部稳定。综合一系列检测和分析结果,完成了对该结构的安全性和正常使用性的鉴定,得出了该人行天桥的可靠性评级,旨在能为工程的维修和保养提供一定依据。

It was examined that the dynamic peculiarity,the welding line flaw,the size of steel member section and the rusty phenomenon of a steel pedestrian overcrossing.And the whole stability and local stability of the structure was checked according to the criterion.The stress and deformation of the structure under designed load function was analyzed with finite element procedure.Then completed the appraisal to the security and the normal use of the structure upon the above examination and analysis,and conclude the reliability rate of the pedestrian overcrossing. Wish it can provide some basis for the maintenance of the project.