［摘要］基于活动性较弱或趋于稳定的地裂缝，以西安地区一个跨越地裂缝的建筑物为研究对象，从西安地区地裂缝的成因、分布入手，采用SAP2000有限元软件对实际工程结构进行线性和非线性分析，将地裂缝的活动量以初始位移的方式施加到不同工况的结构上，定量地分析了地裂缝的活动对跨于其上结构的不利影响，找出了该跨地裂缝结构的危险部位，给出了结构出现塑性铰的时间、位置和数量；最后结合分析的结果，提出了防治措施。
［关键词］地裂缝；破坏机理；工况模拟；防治对策
中图分类号：TU398.2文献标识码：A文章编号：1002-848X(2011)10-0079-05
Calculation and analysis on a building striding over ground fissure in Xi’an
 Xiong Zhongming, Wang Junliang(College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)
Abstract:Based on weakly active or nearly stable ground fissure, a building striding over ground fissure  in Xi’an was researched. From the cause and distribution of ground fissure, failure mechanism, destroy mode and preventive countermeasures were studied. Finite element software SAP2000 was used to research the structure by linear static and nonlinear static analysis. Initial displacement which imitated the value of ground fissure activity was applied to the structure, and quantitative analysis had been conducted in adverse effect of ground fissure activity on the structure. Dangerous location of the structure, the time, position and amount of plastic hinges were found out. Based on the analysis results, preventive countermeasures were proposed.
Keywords:ground fissure; failure mechanism; simulated condition; preventive countermeasure
作者简介：熊仲明, 博士，教授，Email:xiongzhongming@sino.education.org。
参考文献
［1］GB/T50279—98岩土工程基本术语标准［S］.北京：中国计划出版社，1999.
［2］王景明.地裂缝及其灾害的理论与应用［M］.西安：陕西科学技术出版社, 2000.
［3］彭建兵, 范文, 李喜安, 等.汾渭盆地地裂缝成因研究中的若干关键问题［J］. 工程地质学报, 2008, 15 (4): 433-440.
［4］陕西省工程建设标准.DBJ616—2006, J10821—2006西安地裂缝场地勘察与工程设计规程［S］.2006.
［5］HOLZER T L. Ground failure induced by ground-water withdrawal from unconsolidated sentiment［M］. Geology Society of American Reviews Engineering Geology, 1984.
［6］陈志新. 地裂缝成灾机理及防御对策［J］. 西安工程学院学报, 2002,24(2): 17-20.
［7］西安建筑科技大学西大门岩土工程勘察报告［R］.西安：西北综合勘察设计研究院,2005.
［8］李新生,王静,王万平,等.西安地铁二号线沿线地裂缝特征、危害及对策［J］. 工程地质学报, 2007, 15 (4): 463-468.
［9］GB50009—2001建筑结构荷载规范［S］. 北京：中国建筑工业出版社，2006.
［10］SAP2000中文版使用指南［M］.北京:中国建筑工业出版社，2004.