论文部分内容阅读
对于粘钢加固钢筋混凝土构件进行了可靠度分析和剩余寿命预测。粘钢加固梁是由新、旧材料构成的组合构件,对粘钢加固梁的受力可分为原有部分与新加部分进行分析,研究了其原有部分的抗力衰减模型和新加部分与原有部分的荷载分配。介绍了两者的抗力、荷载统计参数及可靠指标计算方法。通过调节卸载程度及粘贴钢板的面积使原有部分与新加部分的可靠指标相协调,从而使两者具有相同的可靠度,并结合实例分析了卸载程度和钢板厚度对构件可靠指标的影响。最后基于可靠度对粘钢加固梁进行了剩余寿命预测。
The reliability analysis and residual life prediction of reinforced concrete with bonded steel plates are carried out. The bonded steel reinforced beam is a composite component made of new and old materials. The force of the bonded steel reinforced beam can be divided into the original part and the newly added part. The resistance attenuation model and the added part of the original part are studied. With the original part of the load distribution. The resistance, load statistic parameters and reliable index calculation methods are introduced. By adjusting the degree of unloading and the area of the steel plate, the original part is coordinated with the reliable index of the newly added part, so that the two have the same reliability. The unloading degree and the influence of the thickness of the steel plate on the reliability index of the member are analyzed with examples. Finally, based on the reliability of the bonded steel beam reinforcement residual life prediction.