(1 中国建筑设计研究院，北京 100044；2 西安建筑科技大学，西安 710055；3 西北电力设计院, 西安 710075)

［摘要］基于混凝土损伤塑性模型和直接积分算法对一大型火电厂主厂房结构进行精细的动力弹塑性分析，研究主厂房结构在地震过程中的变形性能、刚度退化规律和薄弱位置分布，给出主厂房结构整体弹塑性性能的量化指标；研究错层处构件和带“强梁约束”剪力墙等典型构件的破坏特征;并将动力弹塑性分析结果与缩尺比为1∶7的拟动力试验结果进行对比。动力弹塑性分析结果与试验结果吻合良好，验证了动力弹塑性分析的准确性与可行性。

［关键词］动力弹塑性分析; 精细有限元分析; 火电厂; 主厂房

中图分类号：TU271.1，TU398      文献标识码：A       文章编号：1002-848X(2014)18-0063-05

Application of dynamic elastic-plastic analysis in the main plant structure of a large heat-engine plant

Zeng Jinsheng1, Bai Guoliang2, Liu Lin2, Li Hongxing3

 (1 China Architecture Design & Research Group, Beijing 100044, China; 2 Xi′an University of Architecture and Technology, Xi′an 710055, China; 3 Northwest Electric Power Design Institute, Xi′an 710075, China)

Abstract: Based on the concrete damage plastic model and direct integral algorithm, the refined dynamic elastic-plastic analysis was carried out for the main plant structure of a large heat engine plant. The deformation performance, the stiffness degradation regularity and the weak position distributions of the main plant structure were studied, and the quantitative indicators for integral elastic-plastic performance of the main plant structure were given. The failure patterns of typical members as staggered members and the shear wall with big restrained beams were studied. The dynamic elastic-plastic analysis results were compared with the results of the 1∶7 scaled pseudo-dynamic test. The dynamic elastic-plastic analysis results agree well with the test results, which verifies the accuracy and feasibility of the dynamic elastic-plastic analysis.

Keywords: dynamic elastic-plastic analysis; refined finite element analysis; heat-engine plant; main plant

作者简介：曾金盛，硕士，工程师，Email:zengjs@cadg.cn。

参考文献

［1］汪大绥, 周建龙, 王建, 等. 建筑结构非线性时程分析进展［J］. 建筑结构, 2006, 36(6):84-87.

［2］李承铭, 李志山, 王国俭. 混凝土梁柱构件基于截面纤维模型的弹塑性分析［J］. 建筑结构, 2007, 37(12):33-35.

［3］陆新征, 叶列平, 缪志伟. 建筑抗震弹塑性分析［M］. 北京: 中国建筑工业出版社, 2009.

［4］庄茁, 张帆, 岑松，等. ABAQUS非线性有限元分析与实例［M］. 北京: 科学出版社, 2005

［5］Dassault Systemes Simulia Corp. Abaqus6-10 theory manual ［M］. USA, 2010.