由温湿度差异引起的不同城市钢筋混凝土梁耐久寿命差异分析  

ANALYSIS OF DURABILITY DIFFERENCE ON RC BEAMS IN MAIN CITIES DUE TO THE DISSMILARTITY OF TEMPERATURE AND RELATIVE HUMIDITY

作　　者：叶英华[1] 董薇[1] 

机构地区：[1]北京航空航天大学土木工程系,北京100083

出　　处：《工业建筑》2007年第z1期969-972,共4页Industrial Construction

摘　　要：环境气候条件对钢筋混凝土构件的耐久性有很大影响。我国幅员辽阔,各地的气候条件差异显著,造成构件的耐久性寿命也存在较大差异。收集了各主要城市的年平均温度和相对湿度数据,对大气条件下,由碳化引起的,各城市间钢筋开始锈蚀和保护层锈胀开裂的耐久寿命差异进行了比较分析。RC beams'durability is significantly affected by environmental climate conditions.Climate diversity exists due to vast cover in territory,which results in differences on the durability life of RC members.We collected the yearly average temperature and relative humidity of main cities.According to the date,research is carried out on difference of the time of beginning of rusting and concrete cover cracking caused by concrete carbonization in atmospheric environment.

关 键 词：城市 碳化 钢筋混凝土梁 钢筋开始锈蚀 保护层锈胀开裂 

分 类 号：TU375.1[建筑科学—结构工程]