再生混凝土結構性能研究最新進展*
王長青
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(同濟大學材料科學與工程博士后流動站,上海 200092)[摘要]重點分析和討論再生混凝土結構性能,對再生混凝土結構性能研究的最新進展進行了綜述。分析了再生混凝土梁的抗彎性能和受剪性能、再生混凝土板的抗彎承載力、再生混凝土柱的承載力、再生混凝土剪力墻和再生混凝土砌塊墻體的抗震性能、再生混凝土梁柱節(jié)點的基本力學性能和抗震性能;探討了再生混凝土平面框架在低周反復水平加載下的承載能力、變形能力以及抗震能力;分析討論了再生混凝土空間框架結構和砌體結構在動力荷載下的動力特性、地震反應、結構延性、地震損傷等。國內外再生混凝土結構性能的研究表明,合理設計施工的再生混凝土結構(構件)基本上能夠達到普通混凝土結構(構件)的性能要求,其應用于土木工程中是可行的,可以在抗震設防地區(qū)推廣和應用。[關鍵詞]建筑廢棄物; 再生骨料; 再生混凝土; 構件性能; 結構性能中圖分類號:TU528.79,TU317.1 文獻標識碼:A 文章編號:1002-848X(2014)22-0060-07Latest research progress on structural performance of recycled aggregate concreteWang Changqing(Postdoctoral Mobile Research Station, College of Material Science and Engineering, Tongji University, Shanghai 200092, China)Abstract: The structural performance of recycled aggregate concrete (RAC) was mainly investigated and analyzed, and the latest research progress on the structural performance of RAC was reviewed in detail. The flexural and shear performances of RAC beam, flexural bearing capacity of RAC slab, bearing capacity of RAC column, seismic performances of RAC shear wall and RAC masonry wall, basic mechanical property and seismic performance of RAC beam-column joint were analyzed. The bearing capacity, deformability and seismic performance of RAC planar frame under the horizontal low cyclic loading were analyzed. Furthermore, the dynamic properties, the seismic responses, the structural ductility and the seismic damage assessment of RAC spatial frame and block masonry structures under the dynamic loadings were investigated and discussed. The studies on the structural performance of RAC from home and abroad show that RAC structure (member) with proper design and construction can basically meet the structural performance of normal aggregate concrete structure(member) and be used in civil engineering. It is feasible to apply and popularize RAC building in seismic fortification areas.Keywords: construction and demolition waste; recycled aggregate; recycled aggregate concrete; member performance; structural performance*中國博士后科學基金資助項目(2014M550247),河南省教育廳科學技術研究重點項目(14B560033)。作者簡介:王長青,博士后,Email:changqingwang@#edu.cn。