清水池震害综合预测方法  

Seismic Damage Prediction for Clean Water Ponds

作　　者：于天洋 郭恩栋[1,2] 李倩[1,2] 李俊阳 Yu Tianyang;Guo Endong;Li Qian;Li Junyang(Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Harbin 150080, China)

机构地区：[1]中国地震局工程力学研究所,哈尔滨150080 [2]中国地震局地震工程与工程振动重点实验室,哈尔滨150080

出　　处：《震灾防御技术》2018年第2期353-362,共10页Technology for Earthquake Disaster Prevention

基　　金："十二五"国家科技支撑计划项目(2015BAK17B05);大中城市地震灾害情景构建重点专项资助项目(2016QJGJ11);中国地震局创新团队发展计划(中国大陆地区地震灾害模拟与评估)资助

摘　　要：对基于池壁裂缝宽度预测清水池震害程度的方法进行了深入研究,该方法与清水池快速预测方法(如经验统计回归方法)相比有较强的理论依据,但是当池壁受拉钢筋应力超过其屈服应力时,采用该方法会导致计算结果与实际裂缝宽度不符。因此,壁板裂缝宽度方法适用于评定清水池轻微破坏及以下的震害等级,当清水池壁板受拉钢筋屈服后,应采用震害经验统计回归模型对清水池震害等级进行评定。建议将上述2种预测方法相结合作为清水池震害预测的综合方法。In this paper, we studied the seismic damage prediction method of reinforced concrete clean water ponds based on wallboard crack width. This method has a solid theoretical basis compared with the fast prediction method such as the empirical statistical regression method. However, when the tensile stress of bars on wallboard exceeded its yield stress, the crack-width in using this method to calculate was inconsistent with the actual situation. It was proposed that when the tensile stress of bars on wallboard of clean water ponds exceeded its yield stress, the statistical regression model could be used to make evaluation to the clean water ponds. We suggested that it is better to combine two methods into a comprehensive method for the prediction of the seismic damage of the clean water ponds.

关 键 词：震害 清水池 裂缝宽度 钢筋屈服 统计回归 

分 类 号：P315.7[天文地球—地震学]