铆合层梁铆钉剪力计算公式

A Formula for Calculating Cross-Sectional Shear Forces in Rivets in Laminated Riveted Beams

对多层铆合梁，利用各层在铆钉处转角相等和层间接触面上纵向变形相等的条件，建立了基本方程．结合模截面内力的分配关系，求出了每个铆钉两边在任意层以上的总的纵向内力，进而得出每个铆钉在任意层间横截面上的剪力公式和梁的横截面在铆钉处的转角公式．这些公式实质上都与弯矩有关．这些公式能够应用于多层铆合梁并具有铆钉非等距，梁的剪力沿长度方向变化和各层横截面形状不同，材料不同的情况．

Basic equations have been established for laminated riveted beams with slopes equal at rivets and longitudinal deformaions equal in contact areas of two strips. Total longitudinal foree above any contacted surface at either side of a rivet is obtained through resolution of internal forces. Expressions are then obtained for the crosssectional shearing forces in any rivet and for the cross-sectional slope at any rivet. The expressions show they all refer to the bending moment essentially, and they can be for beams made up of strips with different cross-sections and/or of different materials. There may be unequal rivet distances and/or a varied shear diagram for these beams.