军事交通学院学报
軍事交通學院學報
군사교통학원학보
JOURNAL OF ACADEMY OF MILITARY TRANSPORTATION
2012年
3期
9-14
,共6页
刘锡鑫%李海超%常春伟%赵康%安昭超
劉錫鑫%李海超%常春偉%趙康%安昭超
류석흠%리해초%상춘위%조강%안소초
中小跨径混凝土梁式桥%军事装备%通过性%快速检测评估
中小跨徑混凝土樑式橋%軍事裝備%通過性%快速檢測評估
중소과경혼응토량식교%군사장비%통과성%쾌속검측평고
small and medium span RC beam bridge%military vehicle%trafficability%fast detection and evaluation
从承载能力和正常使用2种极限状态指标的本质关系入手,提出将挠跨比作为军事装备通过性的评估指标。通过无损检测得到桥梁的简单信息,利用ANSYS进行快速建模;根据小荷载静力试验结果修正桥梁有限元模型;利用修正后的有限元模型开展模拟试验得到军事装备作用下的挠跨比;确定相应的挠跨比评估标准;最后对桥梁的军事装备通过性做出判断。模拟试验结果表明通过性快速检测评估技术简单可行。
從承載能力和正常使用2種極限狀態指標的本質關繫入手,提齣將撓跨比作為軍事裝備通過性的評估指標。通過無損檢測得到橋樑的簡單信息,利用ANSYS進行快速建模;根據小荷載靜力試驗結果脩正橋樑有限元模型;利用脩正後的有限元模型開展模擬試驗得到軍事裝備作用下的撓跨比;確定相應的撓跨比評估標準;最後對橋樑的軍事裝備通過性做齣判斷。模擬試驗結果錶明通過性快速檢測評估技術簡單可行。
종승재능력화정상사용2충겁한상태지표적본질관계입수,제출장뇨과비작위군사장비통과성적평고지표。통과무손검측득도교량적간단신식,이용ANSYS진행쾌속건모;근거소하재정력시험결과수정교량유한원모형;이용수정후적유한원모형개전모의시험득도군사장비작용하적뇨과비;학정상응적뇨과비평고표준;최후대교량적군사장비통과성주출판단。모의시험결과표명통과성쾌속검측평고기술간단가행。
By studying the essential connection of serviceability and ultimate limit states index, this paper takes deflection - to - span ratio as evaluation index for trafficability. Then proposes that make use of the large general finite - element procedure ANSYS. Firstly, establishing the finite - element model of bridge basing on the brief information that is gained by non- destructive detection ; Secondly, modifying the finite - element model by comparing the result of simulation analysis to the result of static load test;Thirdly, carrying out an simulation experiment with the finite -element model, working out the de- flection - to - span ratio of bridge under military vehicle load ; Fourthly, fixing on certain evaluation standards ; At last, evaluating the military vehicle trafficability on bridge. The results of a simulation experiment with an RC T - beam indicate that this technology is convenient and credible.