混凝土多孔砖砌体墙干燥收缩性能研究.pdfVIP

学兔兔 全国中文核心期刊 钎鲤建蟓柑 混凝士多孔砖砌体墙干燥收缩J}生能研究 李妍“ ，孟广伟 ，尹新生2 (1．吉林大学 机械科学与工程学院工程力学系，吉林 长春 130025； 2．吉林建筑工程学院寒地绿色建筑技术工程研究中心，吉林 长春 130021) 摘要：对不同条件下混凝土多孔砖砌体墙进行连续60 d干燥收缩变形试验，分析了砌筑砂浆、龄期、混凝土多孔砖初始含水 率、相对湿度和温度对混凝土多孔砖砌体墙收缩的影响，并提出了标准养护及非标准养护条件下混凝土多孔砖砌体墙收缩率估算 公式，研究结果可为混凝土多孔砖在我国北方地区应用提供参考依据。 关键词：混凝土多孔砖砌体墙；干燥收缩；变形 中图分类号：TU362．02 文献标识码：A 文章编号：1001—702X(2010)02—0044—04 Study on dry sh~nkage deformation of concrete perforated brick masonry LI Yah 。，MENG Guangwei ，YIN Xinshe (1．Engineering Mechanics Department，Institute of Mechanical Science＆Engineering，Jilin University，Changchun 130025，Jilin，China； 2．The Research Centre of Green Architecture Technology in Cold Area，Jilin Architecture and Civil Engineering Institute， Changchun 130021，Jilin，China) Abstract：Based on the results for the dry shrinkage deformation of concrete perforated brick masonries cured under different conditions for continuous 60 days，the main factorsaffecting the dry shrinkage deformation，such as bricklaying motor，the curing ages，the initialization moisture content，the relativehumidity and temperature were analyzed．The formulas estimating the dry shrinkage deformation of concrete perforated brick masonries under the standard curing condition and the natural environment are put forward．The study results may be a reference for the application of concrete perforated bricks in north regions． Key words：concrete perforated brick masonry；dry shrinkage；deformation 自2O世纪9O年代以来，我国大力推进墙材革新，其目的 构造不合理引起的裂缝、