森林工程
森林工程
삼림공정
FOREST ENGINEERING
2012年
6期
88-90
,共3页
矮塔斜拉桥%温度%有限元分析
矮塔斜拉橋%溫度%有限元分析
왜탑사랍교%온도%유한원분석
short-tower cable-stayed bridge%temperature%finite element analysis
在矮塔斜拉桥的施工过程中,只有将监测数据与理论计算值分析对比,才能使实际施工与控制计算相符合,但实际上影响监测准确性和可靠性的因素很多,尤其是温度变化对于矮塔斜拉桥主梁施工标高的影响,故对温度影响进行分析具有重大意义。通过测量获得研究块的实际标高值和变形值,使用有限元MIDAS CIVIL分析软件建立相应模型,进行理论与实际的分析比较,得到温度对梁体标高的影响规律,确定合理的调整标高的方法。
在矮塔斜拉橋的施工過程中,隻有將鑑測數據與理論計算值分析對比,纔能使實際施工與控製計算相符閤,但實際上影響鑑測準確性和可靠性的因素很多,尤其是溫度變化對于矮塔斜拉橋主樑施工標高的影響,故對溫度影響進行分析具有重大意義。通過測量穫得研究塊的實際標高值和變形值,使用有限元MIDAS CIVIL分析軟件建立相應模型,進行理論與實際的分析比較,得到溫度對樑體標高的影響規律,確定閤理的調整標高的方法。
재왜탑사랍교적시공과정중,지유장감측수거여이론계산치분석대비,재능사실제시공여공제계산상부합,단실제상영향감측준학성화가고성적인소흔다,우기시온도변화대우왜탑사랍교주량시공표고적영향,고대온도영향진행분석구유중대의의。통과측량획득연구괴적실제표고치화변형치,사용유한원MIDAS CIVIL분석연건건립상응모형,진행이론여실제적분석비교,득도온도대량체표고적영향규률,학정합리적조정표고적방법。
In the process of the construction control of short-tower cable-stayed bridge,lots of real-time monitoring data should be compared with the theoretical calculations in order to keep the consistency.But in the actual construction process,there are lots of factors affecting the accuracy and reliability of the monitoring,especially the temperature,so the analysis on temperature has great significance.The purpose of this essay is to analyze the influence of temperature on the elevation of short-tower cable-stayed bridge,in order to seek a reasonable elevation.Research methods:the effects of various temperature loads were analyzed and then compared with the measured temperature effect to explore the causes of the changes.Research procedure:the actual elevation value of the study block and the deformation value were measured and the MIDAS CIVIL analysis software was used to establish the appropriate model for the theoretical and practical analysis.Conclusions:the regular pattern of the influence of temperature on the beam elevation was obtained,and the method for determining reasonable adjusted elevation was put forward.