黑龙江交通科技
黑龍江交通科技
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COMMUNICATIONS SCIENCE AND TECHNOLOGY HEILONGJIANG
2015年
3期
60-61,63
,共3页
测试截面%加载效率%有限元%连续梁
測試截麵%加載效率%有限元%連續樑
측시절면%가재효솔%유한원%련속량
The test section%Loading efficiency%Finite element%Continuous beam
为了研究不等跨桥梁测试截面的加载效率超限问题,采用有限元软件MIDAS/CILVAL、桥梁博士,选择三种边跨、中跨跨径差距较大的连续梁并对其主要测试截面进行加载,并计算出加载效率,得出边跨最大正弯矩并不在0.4 L位置处及随着桥梁跨径增大,在测试墩顶断面时桥梁其他主要测试截面加载效率超限问题趋于明显的结论。
為瞭研究不等跨橋樑測試截麵的加載效率超限問題,採用有限元軟件MIDAS/CILVAL、橋樑博士,選擇三種邊跨、中跨跨徑差距較大的連續樑併對其主要測試截麵進行加載,併計算齣加載效率,得齣邊跨最大正彎矩併不在0.4 L位置處及隨著橋樑跨徑增大,在測試墩頂斷麵時橋樑其他主要測試截麵加載效率超限問題趨于明顯的結論。
위료연구불등과교량측시절면적가재효솔초한문제,채용유한원연건MIDAS/CILVAL、교량박사,선택삼충변과、중과과경차거교대적련속량병대기주요측시절면진행가재,병계산출가재효솔,득출변과최대정만구병불재0.4 L위치처급수착교량과경증대,재측시돈정단면시교량기타주요측시절면가재효솔초한문제추우명현적결론。
In order to research on the problem of unequal loading efficiency over bridge test section, Using the finite element software MIDAS/CILVAL、Dr.Bridge, choose continuous beam of three large span, span the gap and loading of a test sec-tion, and calculate the loading efficiency, Come to the conclusion that the side span maximum positive moment is not in the 0.4L position and with increasing bridge spans other major test section loading efficiency exceeded problems become appar-ent when in the test section of bridge pier top.