铁路工程结构可靠性设计统一标准（试行Q\CR9007-2014英文版）[UnifiedStandardforReliabilityDesignofRailwayStructures（T

内容简介

　　This Standard consists of nine chapters， namely：General Provisions， Terms and Symbols， Basic Requirements， Principles for Limit State Design， Actions and Environmental Influences， Material and Soil Properties and Geometric Parameters， Structural Analysis and Test-assisted Design， Partial Factor Design Methods， Reliability Management and Assessment， and four appendices.
　　This Standard：
　　1. Unifies the design concepts of railway structures9 and specifies that the probability-based limit state design method expressed by partial factor format shall be used for the design of railway structures， in the Chapter of General Provisions.
　　2.Specifies the general technical requirements of limit state design method of railway structures and the safety classes and design service life of railway structures9 stipulates the importance factors of structures， and presents the concepts that the environmental influences on structures and durability shall be considered in structural design， in the Chapter of Basis Requirements.
　　3. Refines and improves the classification of limit states， specifies that railway structures shall be designed in terms of ultimate limit states， serviceability limit states and fatigue limit states， defines the classification of design situations， stipulates the basic principles of limit state design， and provides principles on reliability-index-based design.
　　4. Stipulates the principles for determining the design parameters of actions， specifies the standard diagrams of train live loads， and provides environmental influences regulations in principle.
　　5. Specifies the principles and methods for determining properties and geometric parameters of materials and soils.