钢骨混凝土T形柱双向小偏压试验  

Experimental Research on T-Shaped Steel Reinforced Concrete Columns under Biaxial Eccentric Pressure

作　　者：徐亚丰[1] 李晓丽[2] 佟雪伟 段晓静[4] 张皓[4] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]中煤国际工程集团沈阳设计研究院,辽宁沈阳110015 [3]辽宁城建集团有限公司,辽宁沈阳110003 [4]锦州石化公司设计院,辽宁锦州121001

出　　处：《沈阳建筑大学学报（自然科学版）》2009年第5期863-870,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：辽宁省教育厅科研计划项目(20060691);沈阳市人才资源开发专项基金项目(2007140303002)

摘　　要：目的研究双向小偏压作用下的T形钢骨混凝土柱的受力性能.方法对3根含钢骨率不同的T形钢骨混凝土柱进行双向小偏心受压试验,结合试验结果,描绘出了试件的荷载-位移曲线、荷载-应变曲线,并进行了分析,从而了解了小偏压作用下的T形钢骨混凝土柱的受力性能及破坏机理.结果通过试验,明确了钢骨混凝土异形柱的破坏形态,分析表明,试件的含钢率越大,其承载能力越高,变形性能越好.从开始加载直至试件破坏,型钢与混凝土的协同工作性良好.结论钢骨混凝土异形柱具有很好的延性和很高的承载力.Experimental research on T-shaped steel reinforced concrete columns under biaxial eccentric pressure was conducted. Through the biaxial eccentric experiment of 3 T-shaped steel reinforced concrete columns of different ratio of steel, we analyzed the results of the experiment, obtained the interrelated curves, and learned the mechanical property and the failure mechanism. Through the experiment, we can know the damage character of steel reinforced concrete special-shaped columns. We can gain the conclusion that the bearing capacity of the member increases as the percent of steel increases. The steel and the reinforced con- crete can keep working together well from loading until breaking down. The cooperation of the steel with the concrete makes the steel reinforced concrete column have high bearing capacity and excellent ductility.

关 键 词：钢骨混凝土异形柱 含钢率 受力性能 破坏形态 承载力 双向偏心 

分 类 号：TU398[建筑科学—结构工程]