Characterization of structural collapse is one of the key components of performance based earthquake engineering (PBEE) design. Usually, in seismic codes, the point of dynamic structural collapse due to earthquakes is based on parameters approaching subjective threshold values. Instead, energy-based formulations have raised as a more physical and robust approach in understanding the balance between the seismic energy input into the systems and the structural energy dissipated. In this paper a comparison between different energy-based methodologies is shown. Particularly, the formulation of a kinetic energy-based methodology is proposed and compared with the gravitational and intrinsic energy-based procedures, and with the results of the pushover analysis. The results show that the collapse state evaluated with the kinetic energy-based criterion is compatible with gravitational energy-based collapse technique in which its results were verified through some experimental tests. While in gravitational energy based method the amount of gravitational force should necessarily be significant, the proposed kinetic energy procedure predicts collapse point regardless of gravitational force. It also predicts local damage and hinge formation reasonably. The methods were investigated using single-degree systems (SDOFs) and a three story steel frame. According to outcomes, the proposed procedure can be used as an acceptable method for determination of collapse time, drift, and local damage.

结构倒塌的表征是基于性能的地震工程（PBEE）设计的关键组成部分之一。通常，在地震法规中，由于地震引起的动态结构倒塌点基于接近主观阈值的参数。取而代之的是，在理解输入到系统的地震能量与耗散的结构能量之间的平衡方面，基于能量的公式化已成为一种更物理，更可靠的方法。在本文中，显示了不同基于能量的方法之间的比较。特别是，提出了一种基于动能的方法论的制定方法，并将其与基于重力和内在能量的方法以及推覆分析的结果进行了比较。结果表明，用基于动能的准则评估的坍塌状态与基于重力能的塌陷技术兼容，后者的结果通过一些实验测试得到了验证。虽然在基于重力能的方法中，重力的数量必须一定很大，但无论重力如何，所提出的动能程序都可以预测塌陷点。它还可以合理地预测局部损坏和铰链形成。使用单度系统（SDOF）和三层钢框架对方法进行了研究。根据结果​​，建议的程序可用作确定崩溃时间，漂移和局部损坏的可接受方法。