- 摘 要
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[摘要]介紹了混凝土板墻加固磚砌體墻的試驗過程及現(xiàn)有的承載力計算方法背景。通過對不同形式的10面墻片進行水平低周反復荷載加載試驗,研究了磚墻、單雙面加固墻片以及震前震后加固墻片的工作性能,分析了磚砌體墻砂漿強度、混凝土板墻厚度、震前與震后加固、單雙面板墻加固等因素對原磚墻承載力、剛度以及延性的影響??煽闯黾庸毯髩ζ目拐鹦阅艿玫斤@著提高,雙面厚60mm混凝土板墻加固后墻片的抗剪承載力等同于厚120mm混凝土剪力墻。同時,驗證了建筑抗震加固規(guī)程中承載力增強系數(shù)取值的合理性。
[關鍵詞]磚砌體; 砌體加固; 混凝土板墻; 水平低周反復試驗; 加固
中圖分類號: TU362.1 文獻標識碼:A文章編號:1002-848X(2011)11-0094-04
Research and analysis on brick wall strengthened with concrete splint
Huang Shimin, Yao Qiulai, Kang Yanbo, Kong Fanfeng(CABR Technology Co., Ltd., China Academy of Building Research,Beijing 100013, China)
Abstract: The test process of brick wall strengthened with concrete splint and the existing calculation analysis method about bearing capacity are introduced. Through a series of low-cycle repeated loads experiments, it is studied the performance of concrete shear wall and brick wall strengthened with concrete splint, then the factors were analyzed about bearing capacity and rigidity of wall. Based on the analysis, the anti-seismic performance of the wall strengthened with concrete splint is enhanced clearly and the shear bearing capacity of brick wall strengthened with double 60mm concrete splints is equivalent to the 120mm shear wall. The calculation parameters in the code have good accordance with the experiment results.
Keywords: brick wall; masonry structure; concrete splint; low-cycle repeated loads experiment; strengthening
*“十一五”國家科技支撐計劃項目(2006BAJ03A03)。
作者簡介:黃世敏(1968-),男,博士,研究員,副總裁,研究方向:膜結構設計施工、工程結構抗震與加固改造,Email:kangshuo111@126.com。
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