桥梁承载力演变理论及其应用技术梗概  

Bridge carrying-capacity changing theory and the applicable techniques

作　　者：肖盛燮[1] 彭凯[1] 缪吉伦[1] 王家林[1] 

机构地区：[1]重庆交通学院土木建筑学院,重庆400074

出　　处：《重庆交通学院学报》2004年第6期1-4,共4页Journal of Chongqing Jiaotong University

基　　金：国家自然科学基金(59878057);西部交通建设科技项目(2001 318 223 36)资助

摘　　要：提出了桥梁承载力演变理论,并将该理论概括为4个阶段:承载力耗散阶段、承载力衰变阶段、承载力溃损阶段和承载力提升阶段;对各阶段的科学定义、性态特征、影响因素、效应度量、构模体系及量化分析作了概化,可为已成桥的技术评价和改造利用提供理论依据与应用借鉴.A new bridge carrying-capacity changing theory is proposed in the paper and then generalized as four changing phases: a dissipation phase, a deterioration phase, a destruction phase and a promotion phase. In turn, the scientific definitions, the features, the influential factors, the effect quantification and model systems corresponding to the different four phases are summarized to provide theoretical and applicable guide for the technical evaluation and rebuilding of aged bridges.

关 键 词：桥梁工程 承载力演变理论 概化 耗散 溃损 提升 

分 类 号：U445.446[建筑科学—桥梁与隧道工程]