JPKIC 结构设计原理 The principle of structure design (GBJ68-84)Uniform standard of reliability design for building structures ● (GB50153-92)Uniform standard of reliability design for engineering structures Uniform standard of reliability design for habour engineering structures(GB 50158-92) ● Uniform standard of reliability design for railway structures (GB50216-94) Uniform standard of reliability design for highway structures (GB/T50283-1999)
⚫ (GBJ68-84) Uniform standard of reliability design for building structures ⚫ (GB50153-92) Uniform standard of reliability design for engineering structures ⚫ Uniform standard of reliability design for habour engineering structures (GB 50158-92) ⚫ Uniform standard of reliability design for railway structures (GB 50216-94) ⚫ Uniform standard of reliability design for highway structures (GB/T 50283-1999)
2,Structural probabilistic design method JPKIC 结构设计原理 Tfeprniipledistnctiredesign divided in three levels [level I]-half probability design method,affect some factors in reliability,combined with experiences.No quantitively estimated. [level II]-approximated probability design method,using probability and statistical,reliability probability of element and structure can be estimated. [level II]-Total probability design method.Based on accurate probabilistic analysis of structural system,failure probability is used to measure
divided in three levels [level I]—— half probability design method, affect some factors in reliability, combined with experiences. No quantitively estimated. [level II]—— approximated probability design method, using probability and statistical, reliability probability of element and structure can be estimated. 2、Structural probabilistic design method [level III]——Total probability design method. Based on accurate probabilistic analysis of structural system, failure probability is used to measure
JIPlKIC 结构设计原理 The principle of structure design Current China design code (Highway bridge design code) Adopt approximate probabilistic limit state design method
★ Current China design code (Highway bridge design code) Adopt approximate probabilistic limit state design method
JPKIC s2.1 Basic concept of probabilistic limit state design菌，构t原黑 method 1,Structural functional requirement 1 )4 basic function requirements Safety,structure can resist load,confined deformation during normal construction and service Good Working performance in normal service enough durability,in reference time in normal service and maintenance. Integral stability,no collapse at accidental load or events
1、Structural functional requirement §2.1 Basic concept of probabilistic limit state design method 1）4 basic function requirements ⚫ Safety, structure can resist load, confined deformation during normal construction and service ⚫ Good Working performance in normal service ⚫ enough durability, in reference time in normal service and maintenance. ⚫ Integral stability, no collapse at accidental load or events
JPKic 结构热试原黑 2.Structural reliability (1)片 —strength safety-degree of safety(quantitively (4)—stability description) (2)—applicability Reliable-reliability (3)-durability
2. Structural reliability (1)—— strength (4)——stability (2)——applicability (3) —— durability safety —degree of safety (quantitively description) Reliable ——reliability