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［摘要］針對(duì)普通混凝土豎孔空心砌塊存在的熱、滲、裂等問題，提出并研究了一種新型混凝土橫孔空心砌塊。通過對(duì)3組（共18個(gè)）這種新型混凝土橫孔砌塊填充砌體和4組（共24個(gè)）承重砌體的受剪性能試驗(yàn)研究，了解了這種新型橫孔砌塊砌體的變形特征及破壞機(jī)理?；谠囼?yàn)結(jié)果并參考現(xiàn)行國(guó)家規(guī)范，分別提出了這種新型橫孔砌塊填充和承重砌體的受剪強(qiáng)度計(jì)算方法。結(jié)果對(duì)比表明，提出的計(jì)算方法與試驗(yàn)值吻合良好。解決了新型橫孔砌塊受剪強(qiáng)度設(shè)計(jì)問題，為新型橫孔砌塊的工程應(yīng)用和研究提供了依據(jù)。
［關(guān)鍵詞］橫孔； 空心砌塊； 受剪性能； 計(jì)算方法； 工程應(yīng)用
中圖分類號(hào)：TU311.4，TU317.1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)10-0126-04
Research on shear behavior of a new type of concrete horizontal-hole hollow block masonry
Wu Fangbo1, Chen Wei1, Zhou Xuhong1,2,  Huang Hailin1（1 School of Civil Engineering, Hunan University, Changsha 410082, China;2 School of Civil Engineering and Mechanics,  Lanzhou University,  Lanzhou 730000, China）
Abstract:There are many problems  in the engineering application of concrete vertical-hole hollow block masonry, for instance, poor thermal insulation, seepage and crack. To solve these problems, a new type of concrete horizontal-hole hollow block masonry was developed. Seven groups with 42 shear specimens of the new type of masonry filler and bearing wall were tested, and the deformation characteristic and failure mechanism of the new type of block masonry were obtained. Based on the experimental results and the current standards, the new shear strength formulas were proposed. The calculated results agree well with tested results. The significance of this study is to implement the shear strength design for the new type of masonry and provide a basis to theory research and engineering application.
Keywords:horizontal-hole; hollow block; shear behavior; computational method; engineering application
*國(guó)家自然科學(xué)基金 (50978090)，國(guó)家“十一五”科技支撐計(jì)劃（2006BAJ02B07）。
作者簡(jiǎn)介：吳方伯，教授，博士生導(dǎo)師，Email:wfbprof@163.com。
參考文獻(xiàn)
［1］施楚賢. 砌體結(jié)構(gòu)理論與設(shè)計(jì)［M］.北京：中國(guó)建筑工業(yè)出版社, 2003
［2］周錫元，李萬舉，閆維明，等.構(gòu)造柱約束的混凝土小砌塊墻體抗震性能的試驗(yàn)研究［J］. 土木工程學(xué)報(bào), 2006, 39(8):45-50
［3］周緒紅，吳方伯. 建筑用空心砌塊:中國(guó)， ZL200510031304-5［P］.2007,12.
［4］GB50003—2001砌體結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京：中國(guó)建筑工業(yè)出版社，2002.
［5］GB/T4111—1997混凝土小型空心砌塊試驗(yàn)方法［S］. 北京： 中國(guó)標(biāo)準(zhǔn)出版社, 2003［6］GBJ129—90 砌體基本力學(xué)性能試驗(yàn)標(biāo)準(zhǔn)［S］.北京：中國(guó)建筑工業(yè)出版社, 2003