- 摘 要
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（1 長江都市建筑設計股份有限公司，南京 210002；2 東南大學土木工程學院，南京 210096；3 南京工業(yè)大學土木工程學院，南京 210009）
［摘要］對跨中局部荷載作用下采用GFRP條帶加固的RC雙向板進行了試驗研究，并詳細分析了試件的破壞形態(tài)、承載能力、剛度、荷載-鋼筋應變關系和荷載-纖維應變關系。試驗結(jié)果表明：采用GFRP條帶加固RC雙向板可以改善板的抗裂和變形性能，且加固后板的極限承載力提高幅度達8%～15%。試驗數(shù)據(jù)為后續(xù)理論分析提供了可靠的試驗依據(jù)。最后，推導出局部荷載作用下粘貼GFRP加固RC雙向板的極限承載力計算公式。
［關鍵詞］GFRP條帶; RC雙向板; 破壞形態(tài); 變形性能; 極限承載力
中圖分類號：TU375.2 文獻標識碼：A 文章編號：1002-848X(2014)11-0061-04
Experimental study of RC two-way slabs strengthened with externally bonded GFRP strips
Han Baoquan1, Cao Shuangyin2, Guo Zhanggen3
（1 Yangtze River Urban Architectural Design Co., Ltd., Nanjing 210002, China; 2 Civil Engineering College of Southeast University, Nanjing 210096, China; 3 Civil Engineering College of Nanjing Technology University, Nanjing 210009, China)
Abstract: The experimental study of RC two-way slabs strengthened with externally bonded glass fiber reinforced polymer(GFRP) strips under mid-span locally distributed load was carried out. The failure modes, bearing capacity, stiffness, load-steel strain relationship and load-GFRP strain relationship of the specimen were carefully studied. The results show that the anti-cracking behavior and deformation behavior of RC two-way slabs strengthened with externally bonded GFRP strips are both improved, and the ultimate bearing capacity of reinforced slabs can increase up to 8%～15%. The experimental data provide a reliable test basis for subsequent theoretical analysis. Finally, the ultimate bearing capacity formula of RC two-way slabs strengthened with externally bonded GFRP strips under mid-span locally distributed load was derived.
Keywords: GFRP strip; RC two-way slab; failure mode; deformation property; ultimate bearing capacity
作者簡介：韓葆銓，高級工程師，Email:hanbaoquanqq@163.com。
參考文獻
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