【作者】 王玉银； 王庆贺； 耿悦；

【Author】 WANG Yu-yin;WANG Qing-he;GENG Yue;Key Lab of Structures Dynamic Behaviour and Control,Ministry of Education,Harbin Institute of Technology;Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology,Harbin Institute of Technology;

【机构】 哈尔滨工业大学结构工程灾变与控制教育部重点实验室； 哈尔滨工业大学土木工程智能防灾工业和信息化重点实验室；

【摘要】 建筑结构水平构件混凝土用量较大,且对混凝土力学性能要求相对不高,更适合再生混凝土的结构化应用。本文总结分析了国内外学者及笔者所在课题组近年来在再生混凝土材料性能、钢-再生混凝土黏结性能以及钢筋再生混凝土板、梁和钢-再生混凝土组合板、组合梁等水平受力构件力学性能方面的研究成果。结果表明:研究学者针对再生混凝土的材料性能进行了三十余年的试验研究与机理分析,积累了充足的试验数据并提出了相对可靠的预测模型,为其在建筑结构中的应用奠定了基础;通过对钢筋再生混凝土板与梁的受弯、受剪以及长期性能的试验研究与理论分析,提出了成套的钢筋再生混凝土水平受力构件设计方法,现已纳入了再生混凝土结构技术规程;近十年来,研究学者对钢-再生混凝土组合板与组合梁的受弯、受剪以及长期性能进行了试验研究与有限元分析,发现再生混凝土在组合结构中应用是可行的,但相关研究尚待深入。未来仍需对再生混凝土水平受力构件设计方法的可靠度进行系统研究,并拓展再生混凝土水平受力构件的疲劳性能、耐久性能及抗火性能等研究。更多还原

【Abstract】 Horizontal structural members consume a huge amount of concrete and have low requirements for concrete properties, which provides a possibility to extend the structural applications of recycled aggregate concrete(RAC). This paper presents a brief review of the studies conducted by the authors and other researchers on the RAC material properties; the bond behaviour between steel and RAC; the mechanical behaviours of reinforced RAC slabs, reinforced RAC beams, composite steel-RAC slabs and composite steel-RAC beams. From the current studies, it can be concluded that: reliable prediction models for the RAC material properties have been proposed using the abundant experimental data collected for the past three decades and these models could be used to predict the mechanical behaviours of structural members. Experimental studies and theoreticalinvestigations were conducted on the flexural behaviour, the shear behaviour and the long-term behaviour of reinforced RAC slabs and beams, based on which their design procedures have been proposed by researchers and adopted by current RAC specifications. For the last decade, research efforts have been devoted to the flexural behaviour, the shear behaviour and the long-term behaviour of composite steel-RAC slabs and composite steel-RAC beams, and the feasibility of thus members is validated. Probabilistic analysis on existing design procedures of reinforced RAC members needs further investigations, and the fatigue behaviour, durability and fire resistance of RAC horizontal structural members are required to be conducted in the future.更多还原