新型外包钢-砼T形截面组合梁滑移性能研究  

Experimental Research on the Interface Slip of New Shape Steel-encased Concrete Composite Beams

作　　者：李少龙 章荣国[2] 石启印[2] 

机构地区：[1]镇江市城市干道工程建设办公室,江苏镇江212001 [2]江苏大学理学院,江苏镇江212001

出　　处：《苏州科技学院学报（工程技术版）》2007年第1期1-5,共5页Journal of Suzhou University of Science and Technology （Engineering and Technology）

摘　　要：在新型外包钢-砼T形组合梁中,交界面相对滑移是影响构件受力性能的一个重要因素。为研究其交界面相对滑移性能,通过3根足尺新型外包钢-砼组合梁的试验研究,得到组合梁不同截面的荷载-位移、荷载-滑移关系曲线。根据试验结果分析了新型外包钢-砼组合梁交界面相对滑移的发展过程和分布规律,从理论上建立了新型外包钢-砼组合梁交界面相对滑移微分方程,得到了组合梁交界面相对滑移量的计算公式,并通过试验数据对其进行验证,理论计算结果与试验结果吻合良好。The interface slip of the new shape steel-encased concrete composite beams greatly affects its working behavior. To research the interface slip character, three full size simple supported samples have been experimented, the load-deflection curves and load-slip curves are established. Based on these results, the interface slip development process and laws are obtained, a differential equation is established for the interface slip, and a calculating formula is obtained for the interface slip through theoretical analysis. Finally, a good agreement is reached between the calculating results and the experimental results.

关 键 词：外包钢-砼T形组合梁 界面滑移方程 试验研究 理论分析 

分 类 号：TU398[建筑科学—结构工程] TU317.1