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钢板-混凝土组合剪力墙早期混凝土应变规律试验研究

EXPERIMENTAL STUDY ON EARLY-AGE CONCRETE STRAIN LAW OF STEEL PLATE AND CONCRETE COMPOSITE SHEAR WALL
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摘要 国瑞·西安金融中心工程施工前,为研究钢板-混凝土组合剪力墙的早期混凝土应变规律,设计了长11 m,厚1.7 m,高2.2 m的足尺模型,通过试验监测得到了组合剪力墙的早期应变发展趋势和分布规律,发现温度是混凝土产生早期应变最主要的因素,温度应变约占早期混凝土总应变的80%以上,混凝土浇筑后18 d左右混凝土应变趋于稳定。 Before construction of Glory Xi'an Financial Center, a full scale model of llmxl.7mx2.2m (lengthxthicknessxheight) was designed to study the early-age concrete strain law of steel plate and concrete composite shear wall. Early-age strain development trend and distribution law of the composite wall were obtained. It was found that temperature is the most important factor influencing early-age strain of concrete. Temperature strain takes about more than 80% of the total strain of concrete at early age and the concrete strain becomes stable about 18 days after concrete grouting.
作者 马小军 汪潇驹 年永林 梁权 巴盼锋 张明 MA Xiao-jun;WANG Xiao-ju;NIAN Yong-lin;LIANG Quan;BA Pan-feng;ZHANG Ming(Beijing Fourth Construction & Engineering Co.,Ltd.,100075,Beijing,China;Beijing Construction Engineering Group, 100055,Beijing,China;North China University of Technology,100144,Beijing,China)
出处 《建筑技术》 2018年第7期713-717,共5页 Architecture Technology
关键词 钢板-混凝土组合剪力墙 混凝土应变 模型试验 steel plate-concrete composite shear wall concrete strain model test
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