- 摘 要
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［摘要］基于活動性較弱或趨于穩(wěn)定的地裂縫，以西安地區(qū)一個跨越地裂縫的建筑物為研究對象，從西安地區(qū)地裂縫的成因、分布入手，采用SAP2000有限元軟件對實際工程結(jié)構(gòu)進行線性和非線性分析，將地裂縫的活動量以初始位移的方式施加到不同工況的結(jié)構(gòu)上，定量地分析了地裂縫的活動對跨于其上結(jié)構(gòu)的不利影響，找出了該跨地裂縫結(jié)構(gòu)的危險部位，給出了結(jié)構(gòu)出現(xiàn)塑性鉸的時間、位置和數(shù)量；最后結(jié)合分析的結(jié)果，提出了防治措施。
［關(guān)鍵詞］地裂縫；破壞機理；工況模擬；防治對策
中圖分類號：TU398.2文獻(xiàn)標(biāo)識碼：A文章編號：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
作者簡介：熊仲明, 博士，教授，Email:xiongzhongming@sino.education.org。
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