APPROXIMATE CALCULATION on DEFLECTION OF REINFORCED CONCRETE BOX GIRDERS CONSIDERING THE EFFECT OF SHEAR LAG AND SHEAR DEFORMATION

摘要：

　　Based on the transformed section and equivalent stiffness,an approximate method suitable for hand calculation is proposed to calculate the deflection of reinforced concrete box section girder after crack.The effect of shear lag and shear deformation could be included in by this method.A detailed example which to explain the method is given and the calculation results are compared with the method in which the effect of shear lag and shear deformation is not to be considered.At last,the calculation results are compared with the experimental data too.It shows that only consider the cracking effect,regardless of the shear lag and shear deformation will allow deflection calculation results of small.The deflection calculation of reinforced concrete box beam should consider the effect of shear lag and shear deformation.

关键词： Reinforced concrete box girder shear-lag effect shear deformation effect calculation of deflection

作者: Lixia Lin Nahong Ding Yuanhai Zhang Yaping Wu

作者单位: School of Civil Engineering Lanzhou jiaotong University, Lanzhou 730070, P.R.China

会议类型: 国际会议

会议名称: The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)

会议地点: 武汉

会议语种:英文

页码: 780-783

在线出版日期: 2012-11-17（万方平台首次上网日期，不代表论文的发表时间）