关于结构在荷载作用下位移的简便计算方法探讨  

Discussion on the Simplified Computing Method for Structural Displacement under Load

作　　者：赵毅力[1] 

机构地区：[1]杨凌职业技术学院,陕西杨凌712100

出　　处：《杨凌职业技术学院学报》2003年第4期14-16,共3页Journal of Yangling Vocational & Technical College

摘　　要：通过多年的教学实践,为方便、正确的求出结构在荷载作用下的位移,推导出一个对于不超过三次的任意弯矩图的图乘法的简便计算公式。不需要计算弯矩图的面积和图形的形心坐标,不需要对复杂弯矩图分解成简单图进行叠加运算,只根据杆段弯矩图端部纵标和杆段上分布荷载值,直接套用公式Δ=∑L6EI[a(2c+h1+d)+b(2d+h2+c)],即可求出结构的位移量。Based on the multiyear teaching practice the paper deduced a convenient, reliable and simplified calculation formula with less than three orders for the diagram multiplication method of arbitrary bending moment graph. And the displacement amount of the structure could be calculated directly with the formula by adopting the ordinate values of endpoints of rod segments on bending moment graph and the load values distributed along the rod segment lines on the bending moment graph, without calculation of the area and graph center of the bending moment graph and without the superpositional addition of complex graph divided into simple pieces.

关 键 词：结构力学 工程设计 荷载 位移计算 弯矩图 

分 类 号：TB12[理学—工程力学]