基于可靠性理论的桥梁承载能力评估公式  

Assessment Formula for Carrying Capacity of Bridge Based on Reliability Theory

作　　者：尤吉[1] 房涛[1] 付公康[2,3] 

机构地区：[1]安徽省高速公路控股集团有限公司大桥建设管理处,合肥市230088 [2]美国伊利诺伊理工大学高等桥梁研究中心,芝加哥市60616 [3]同济大学土木工程学院,上海市200092

出　　处：《公路》2013年第4期13-16,共4页Highway

摘　　要：利用收集到的WIM(Weight in Motion)卡车荷载数据,开展了建立基于可靠性理论的现有桥梁评估公式研究。通过选取国内8种常见桥梁形式计算出了目前现行桥梁设计规范的隐含可靠指标。结合我国现行桥梁设计规范与公路工程可靠度设计标准,建立了基于可靠性理论的现有桥梁承载力评估公式,结果可为我国已建桥梁评估、新桥设计规范的制定和修改提供一定的参考和对照。Using the collected WIM （Weight in Motion） data, the research on assessment formula for the carrying capacity of Chinese Bridge based on reliability theory is put forward. Eight common bridges are selected for calculation and the inherent reliability index of the present design code in China is given. Combined with present bridge design code and highway engineering reliability design code in China, the assessment formula for the carrying capacity of Chinese Bridge based on reliability theory is given. The results can offer some reference and gist for the formulation, modification of bridge design codes and assessment codes.

关 键 词：桥梁承载能力 评估公式 目标可靠指标 WIM卡车数据 隐含可靠指标 可靠性理论 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]