This paper uses differential quadrature method (DQM) to analyse the stability of archs subject to blenling and torsion, and compares the result with the one of the finite element method.

• 用数值微分法对弯扭作用下拱的稳定性进行了分析，并将数值微分法的计算结果与已有的有限元解进行对比，表明该方法比其它数值法具有优越性。