National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [52078056]; Key Project of Hunan Provincial Education DepartmentHunan Provincial Education Department [18A136]
机构署名：
本校为第一机构
院系归属：
土木工程学院
摘要：
Reasonable assessment of web cracking probability is essential to ensure the service performance of corroded prestressed concrete (PC) bridges. In this paper, a time-dependent prediction model of effective prestress for different prestress tensioning techniques and a corrosion propagation model are established. Meanwhile, an assessment approach of web cracking probability considering both aleatory and epistemic uncertainties is proposed. The case analysis results show that the doubled-tensioned prestress technique is obviously more effective in...
