{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11486815","patent":{"patent_number":"US-11486815","title":"Method and system for predicting corrosion fatigue life of prestressed concrete bridges","assignee":null,"inventors":[],"filing_date":"2019-07-16T00:00:00.000Z","publication_date":"2022-11-01T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":20,"abstract":"The invention discloses a method and a system for predicting the corrosion fatigue life of prestressed concrete bridges. A corrosion level of the strand is predicted to obtain the residual tension force of a structure. A stress concentration factor is integrated to consider the stress concentration effect caused by pitting corrosion, and a growth model of the elastic stress of the strand under the coupled effect of corrosion and fatigue is proposed. A growth model of the plastic stress of the strand is established using a cross-section loss of the strand as a fatigue damage parameter based on a degenerated elastic modulus of the concrete after fatigue. Failure criteria for the concrete, the strand, and a longitudinal tension bar are defined, so that a set of methods for analyzing the life of a prestressed concrete bridge subjected to corrosive environment and fatigue load are formed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and system for predicting corrosion fatigue life of prestressed concrete bridges","description":"The invention discloses a method and a system for predicting the corrosion fatigue life of prestressed concrete bridges. A corrosion level of the strand is predicted to obtain the residual tension for","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11486815","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11486815","citation_suggestion":"Patentable. \"Method and system for predicting corrosion fatigue life of prestressed concrete bridges\" (US-11486815). https://patentable.app/patents/US-11486815","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11486815","json":"https://patentable.app/api/llm-context/US-11486815","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:56:43.833Z"}