%0 Journal Article
%T 自密实钢管混凝土合理膨胀剂参量研究<br>The Research of Reasonable Expansion Agent Dosage of Self-Compacting Concrete Filled Steel Tube
%A 尚茂
%A 曹新明
%A 刘骁凡
%A 程阿青
%A 涂开胜
%A 丁新东
%A 黄兴佳
%J Hans Journal of Civil Engineering
%P 1313-1322
%@ 2326-3466
%D 2019
%I Hans Publishing
%R 10.12677/HJCE.2019.88152
%X <div style=\"text-align:justify;\">
	<span style=\"font-size:14px;line-height:1.5;\">本文分别进行了4根管径为219 mm和4根管径为273 mm、壁厚为8 mm的钢管混凝土轴心抗压试验，其核心混凝土膨胀剂参量分别为0%、5%、7%、9%。并通过有限元对核心混凝土膨胀剂参量分别为0%、5%、7%、9%，管径为219、273、350、400，壁厚为8的钢管混凝土进行分析。结果显示，膨胀剂参量为5%、7%时，钢管混凝土的承载力分别提高53.0%、44.5%；膨胀剂参量为9%时，钢管混凝土承载力反而有所降低。因此膨胀参量应控制在5%~7%较为合理。<br />
In this paper, the axial compression test of concrete filled steel tube with 4 pipe diameters of 219 mm and 4 pipe diameters of 273 mm and wall thickness of 8 mm was conducted respectively, which the core concrete expansion agent parameters are 0%, 5%, 7% and 9% respectively. And the finite element model was used to analyze the core concrete expansion agent parameters of 0%, 5%, 7%, 9%, and pipe diameters of 219, 273, 350, 400 and wall thickness of 8. The results show that when the expansion agent parameters are 5% and 7%, the bearing capacity of the concrete-filled steel tube is increased by 53.0% and 44.5%, respectively. When the expansion agent parameter is 9%, the bearing capacity of the concrete-filled steel tube is reduced. Therefore, the reasonable expansion parameters should be controlled at 5% to 7%.</span> 
</div>
%K 膨胀剂，自密实钢管混凝土，轴心抗压承载力试验，有限元分析<br>Expansive Agent
%K Concrete Filled Steel Tube
%K Axial Compressive Bearing Capacity Test
%K Finite Element Analysis
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=32788