不同再生骨料取代率混凝土柱耐火性能试验研究OA北大核心CSTPCD
Experimental Study on Fire Resistant Performance of Recycled Concrete Columns with Different Replacement Rate of Recycled Aggregate
为研究不同再生骨料取代率混凝土柱的耐火性能,进行了3个足尺再生混凝土柱在竖向荷载和温度场耦合作用下的升温耐火试验.其中,2个试件再生粗骨料取代率为100％,细骨料为天然砂的半再生混凝土柱;1个试件为再生粗、细骨料取代率均为100％的全再生混凝土柱.在试验基础上,比较分析了各试件的截面温度变化、耐火极限、轴向变形、侧向挠度和破坏形态.研究表明:相同轴压比条件下,半再生混凝土柱的耐火极限随着混凝土强度的提高而降低;混凝土强度变化对温度场分布规律影响较…查看全部>>
In order to investigate the fire resistant performance of the recycled concrete columns with different replacement rate of recycled aggregate;three full-sized recycled concrete columns were designed and tested under high temperature and unchanged vertical load. Two of the specimens were made from recycled concrete with 100% of recycled coarse aggregate and 100% of natural fine aggregate;which was called 50% recycled aggregate concrete. The other one was made…查看全部>>
曹万林;边建辉;董宏英;张建伟
北京工业大学建筑工程学院,北京100124北京工业大学建筑工程学院,北京100124北京工业大学建筑工程学院,北京100124北京工业大学建筑工程学院,北京100124
再生骨料取代率再生混凝土柱竖向荷载耐火性能试验研究
replacement rate of recycled aggregaterecycled concrete columnvertical loadfire resistant performanceexperimental study
《结构工程师》 2012 (4)
115-121,7
国家科技支撑计划课题(2011BAJ08B02)
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