弹性地基上双层叠合梁的解

SOLUTION TO BI LAYER BEAMS ON ELASTIC FOUNDATION

将双层叠合梁之间的接触状况拟合为一符合Ｇｏｏｄｍａｎ假设的弹性夹层，导出了Ｗｉｎｋｌｅｒ弹性地基上双层叠合梁的微分方程组及其解析解．通过引入“广义夹层反应模量”计入了夹层水平和竖向反力引起的梁截面的剪切和拉压形变效应，它有效地提高了计算精度，尤其是在双层梁结构有间断的场合．

Based on Goodman model, which is used for simulating the touching condition between beams, a diffirential equation group of composite beams on Winkler foundation and its theoretical solution have been induced. The shear, tension and compression deformation in beam section due to the horizontal and vertical force in interlayer are considered through introducing a ``generalized interlayer reaction modulus''. This method raises the calculation accuracy, especially in the case of broken bi layer beams.