The significant advantage of ARSM is that peak seismic responses of gable frames to multi-support excitations can be obtained as conveniently as the conventional response spectrum method.

• 结合门式桁架结构的具体结构形式，介绍了基于振型组合理论的平均反应谱法（ARSM法），类似于传统的反应谱法，ARSM法的优点在于通过简单的振型组合可计算出多点输入下门式桁架结构的最大地震反应。