湖北工业大学学报
湖北工業大學學報
호북공업대학학보
JOURNAL OF HUBEI UNIVERSITY OF TECHNOLOGY
2012年
2期
111-113,121
,共4页
余天庆%周小亮%寇越%余愿
餘天慶%週小亮%寇越%餘願
여천경%주소량%구월%여원
有限元%箱梁%偏位
有限元%箱樑%偏位
유한원%상량%편위
finite element%box beam%deviation
为了评估特大跨度连续桥箱梁段施工过程中发生的偏位对桥梁结构安全的影响,采用大型有限元分析(FEA)软件ANSYS,基于有限元理论的数值计算方法,对桥梁结构应力状态进行数值模拟.得出发生偏位与不发生偏位两种受力状态下危险截面正应力、主应力分布的变化.验算了变化的数值是否满足稳定极限承载力来衡量结果的可靠性.
為瞭評估特大跨度連續橋箱樑段施工過程中髮生的偏位對橋樑結構安全的影響,採用大型有限元分析(FEA)軟件ANSYS,基于有限元理論的數值計算方法,對橋樑結構應力狀態進行數值模擬.得齣髮生偏位與不髮生偏位兩種受力狀態下危險截麵正應力、主應力分佈的變化.驗算瞭變化的數值是否滿足穩定極限承載力來衡量結果的可靠性.
위료평고특대과도련속교상량단시공과정중발생적편위대교량결구안전적영향,채용대형유한원분석(FEA)연건ANSYS,기우유한원이론적수치계산방법,대교량결구응력상태진행수치모의.득출발생편위여불발생편위량충수력상태하위험절면정응력、주응력분포적변화.험산료변화적수치시부만족은정겁한승재력래형량결과적가고성.
In order to assess the impact of deviation on the safety of bridge structure during the process of construction of large-span continuous girder bridge section of deviation,the large finite element analysis software ANSYS was adopted in the numerical simulation of the stress state of bridge structures,based on the main numerical calculation method of finite element theory.The computer simulation results show the changes in the stress distribution of the dangerous section in the two states of normal stress and main stress.Whether those changes satisfy the stable ultimate bearing capacity was also checked to measure the reliability of the results.