【摘要】 本文讨论在纯扭转荷载作用下,等截面和变截面筒中筒结构的计算。外框筒用分段等厚的各向异性连续体来等效,用余能原理求其柔度矩阵。内筒按带连梁的薄壁杆求其柔度矩阵。根据内外筒在楼层处扭转角协调的条件,求得在楼层处内、外筒间的相互作用扭矩,再分别对内、外筒进行静力计算。得出在三种典型扭转荷载作用下,筒中筒结构内力和位移的计算公式,可供初步设计用。更多还原

【Abstract】 In this paper, a-simplified method for analyzing tube-in-tube structures of uniform cross-sections and ariable cross-sections subjected to torsion is presented. Design formulas are suggested for three standard loading conditions,i.e.,top concentrated torque, uniformly distributed torque and inverted triangularly distributed torque.These formulas can be used in the preliminary design.更多还原