新型外包钢-砼组合梁滑移性能的试验  

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

作　　者：吴元祥 石启印[2] 杜德润[3] 

机构地区：[1]浙江省绍兴市城建集团,浙江绍兴310005 [2]江苏大学土木系,江苏镇江212013 [3]东南大学土木学院,南京210096

出　　处：《江苏建筑》2006年第2期15-17,共3页Jiangsu Construction

摘　　要：在新型外包钢-砼组合梁中,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-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 is an important factor in affecting its working behavior. To researeh the interface slip character, three full size simple supported samples have been performed; the load - slip curves are established through experiment. Based on these results, the interface slip development process and laws are gained. A differential equation is established for the interface slip and a calculating formula is established for the interface slip through theoretical analysis. A good agreement is obtained between the calculating results and the experimental results.

关 键 词：外包钢-砼组合梁 界面滑移 试验研究 理论分析 

分 类 号：TU398[建筑科学—结构工程] TU317.1