高德志，  赵  继，  桂满树，  侯晓武
(北京迈达斯技术有限公司，北京100044)

[摘要] 本文介绍了初始荷载的选择对Pushover分析的影响。指出在不同的初始荷载工况下，Pushover分析的塑性铰结果发生的顺序和位置都有所不同，从而影响结构在强震下的评估判断。在MIDAS Gen中，以一个框筒结构简单算例，表明采用施工阶段分析最终阶段结果更为接近实际的初始荷载的施加，使Pushover的分析结果更加合理。
[关键词] MIDAS Cen;施工阶段；Pushover;初始荷载
中图分类号：TU313.2    文献标识码：A    文章编号：1002-848X(2012) S2-0194-03

Influence of construction stage analysis to Pushover analysis
Gao Dezhi, Zhao Ji, Gui Manshu, Hou Xiaowu
( Beijing MIDAS Information Technology Co., Ltd., Beijing 100044, China)

Abstract: The influence of initial load to the Pushover analysis was introduced,  and points out that under different initial load cases, the location and order of plastic hinges of Pushover analysis are different, and it is proved in a case of frame tube structure that the construction stage analysis process is more closer to the actual initial load, and it makes the Pushover analysis results more reasonable.
Keywords: MIDAS Gen; construction stage; Pushover analysis; initialload