【摘要】 以某黄河铁桥为例,结合有限元分析,介绍了基于断裂力学的既有铆接铁路钢桥剩余寿命评估的原理和方法,克服了传统疲劳评估方法中存在的不足,提出了该桁架剩余寿命评估结果。更多还原

【Abstract】 With a iron bridge over the yellow river as example,combined with the finite element analysis,the evaluation principle and method of residual life of existing riveted railway steel bridge based on fracture mechanics were introduced.The method overcame the drawbacks existing in traditional fatigue evaluation method,the residual life evaluation result of the girders was proposed.更多还原