基于随机场的海洋混凝土结构耐久性实证分析  

RANDAM-FIELD-BASED EMPIRICAL DURABILITY ANALYSIS OF REINFORCED CONCRETE STRUCTURES IN MARINE ENVIRONMENT

作　　者：叶新一 李全旺[1] YE Xin-yi;LI Quan-wang(Department of Civil Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《工程力学》2022年第S01期138-143,共6页Engineering Mechanics

基　　金：国家自然科学基金项目(51890901)。

摘　　要：该文基于随机场理论及模拟方法,考虑耐久性参数批次效应,选取位于香港的海洋环境在役混凝土结构工程,进行其表观劣化发展过程的模拟分析与评价,并与实际检测数据进行对比,以验证耐久性分析结果准确性。结果表明:模拟分析结果与实际损坏程度基本一致。该文指出,基于随机场的模拟分析方法能够给出海洋混凝土结构多个维度的表观劣化度信息,将可能指导未来其它工程设计方案和维护策略的制定,从而有助于结构预想的全寿命性能实现和成本控制。Based on random field theory and the simulation method considering the Batch Production Effect,this study conducts simulations and assessments for the surface deterioration process of an in-service reinforced concrete(RC)structure in marine environment in Hong Kong.To verify the accuracy of the analysis results,they are compared with the in-situ inspection data.It is concluded that the simulation results are consistent with the realistic damage extents.Further,this study suggests that the random-field-based simulation method can provide the information on surface deterioration of marine RC structures with more measures,and in the future will guide the formulation of design schemes and maintenance strategies for other projects,and therefore help the implement of the target life-cycle performances and cost controls.

关 键 词：混凝土结构 混凝土耐久性 随机场 氯离子侵蚀 表观劣化 实证分析 

分 类 号：P75[天文地球—海洋科学] TU37[建筑科学—结构工程]