【摘要】 根据连续化方法,采用完备的三角函数系表示一类具有中心对称特征六边形核筒在扭矩作用下的形函数,推导出核筒中的剪力墙的正应力和剪应力公式,并得出核筒各部分的应变能。根据最小势能原理,推导出扭矩作用下核筒关键点处的位移值,得到受扭核筒转角及任意指定点的应力、应变和连梁的剪力等。采用文中的连续化方法对一个算例进行了计算,验证了该方法的有效性和高效性。文中提出的连续化方法可以为工程实践提供一定的参考。更多还原

【Abstract】 The displacement shape functions of a class of hexagonal core tube possessing centrally symmetrial feature are constructed with the self-contained trigonometric function series based on the continuous method, And then the formulae of normal stress and shear stress in the shear walls of the core tube subjected to a torque are brought forward. The formulae of the strain energy in each part of the core tube are obtained. Consequently, the warp displacement values of the key points could be calculated by the principle of minimum potential energy, so that the torsion displacement, the stresses and the strains of the designated points, and the shear forces in the beams of the core tube will be obtained. The validity and high efficiency of the continuous method are proved by an example. And the continuous method can provide reference for practical engineering.更多还原