機制生土磚砌體變形模量及泊松比試驗研究*
王毅紅,劉奇佶,仲繼清,張坤
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(長安大學建筑工程學院, 西安 710061)
[摘要]對12個不同砂漿砌筑的不同高厚比的機制生土磚砌體進行軸心抗壓試驗,獲得機制生土磚砌體的應力-應變關系曲線。通過分析應力-應變關系曲線,得到機制生土磚砌體的變形模量和泊松比的試驗值。探討了機制生土磚砌體變形模量和泊松比的取值方法,分析了砂漿中不同摻料對機制生土磚砌體變形模量和泊松比的影響,可為生土材料制定統(tǒng)一標準提供參考。[關鍵詞]機制生土磚砌體; 砂漿; 變形模量; 泊松比中圖分類號:TU361 文獻標識碼:A 文章編號:1002-848X(2016)12-0067-06
Experimental study on deformation modulus and poisson ratio of rawsoil mechanism brick masonryWang Yihong, Liu Qiji, Zhong Jiqing, Zhang Kun(School of Civil Engineering, Chang′an University, Xi′an 710061, China)Abstract: The axial compressive tests of 12 raw-soil mechanism brick masonry specimens with different depth-thickness ratios and mortars were carried out, and the stress-strain curve of raw-soil mechanism brick masonry was obtained. Through the analysis of the stress-strain curve, the test values of deformation modulus and poisson ratio of the raw-soil mechanism brick masonry were obtained. Meanwhile, the value determination methods of deformation modulus and poisson ratio of the raw-soil mechanism brick masonry were discussed and influences of different mixture in mortar on deformation modulus and poisson ratio were explored, which provides reference to unified standards in raw-soil materials.Keywords: raw-soil mechanism brick masonry; mortar; deformation modulus; poisson ratio
*科技部“十二五”農村領域國家科技支撐計劃項目(2014BAL06B00)。作者簡介:王毅紅,博士,教授,博士生導師,Email:wangyh@chd.edu.cn。