湖南大学学报（自然科学版）
湖南大學學報（自然科學版）
호남대학학보（자연과학판）
JOURNAL OF HUNAN UNIVERSITY(NATURAL SCIENCES EDITION)
2015年
5期
80-85
,共6页
悬索桥%主梁施工%轨索移梁工艺%力学分析%模型试验
懸索橋%主樑施工%軌索移樑工藝%力學分析%模型試驗
현색교%주량시공%궤색이량공예%역학분석%모형시험
suspension bridges%stiffening girder construction%rail cable launching method%mechanical analysis%model test
针对轨索移梁新工艺在悬索桥建设中的关键技术问题，将轨索节段离散成两节点直线单元，建立轨索移梁系统空载状态下的整体力学分析模型，推导出主缆、吊索、轨索等各构件受力状态的计算方程并求解。设计制作了矮寨悬索桥轨索移梁体系的整体缩尺模型并将模型试验与理论分析结果进行了比较。本文所提方法的计算结果与模型试验结果吻合良好，表明本文计算分析方法正确有效，能解决轨索移梁工艺整体分析求解问题，并可简化计算分析过程，计算精度和结果能够应用于工程的初态分析和求解，是一种适合于轨索移梁工艺空载状态下找形计算分析方法。
針對軌索移樑新工藝在懸索橋建設中的關鍵技術問題，將軌索節段離散成兩節點直線單元，建立軌索移樑繫統空載狀態下的整體力學分析模型，推導齣主纜、弔索、軌索等各構件受力狀態的計算方程併求解。設計製作瞭矮寨懸索橋軌索移樑體繫的整體縮呎模型併將模型試驗與理論分析結果進行瞭比較。本文所提方法的計算結果與模型試驗結果吻閤良好，錶明本文計算分析方法正確有效，能解決軌索移樑工藝整體分析求解問題，併可簡化計算分析過程，計算精度和結果能夠應用于工程的初態分析和求解，是一種適閤于軌索移樑工藝空載狀態下找形計算分析方法。
침대궤색이량신공예재현색교건설중적관건기술문제，장궤색절단리산성량절점직선단원，건립궤색이량계통공재상태하적정체역학분석모형，추도출주람、조색、궤색등각구건수력상태적계산방정병구해。설계제작료왜채현색교궤색이량체계적정체축척모형병장모형시험여이론분석결과진행료비교。본문소제방법적계산결과여모형시험결과문합량호，표명본문계산분석방법정학유효，능해결궤색이량공예정체분석구해문제，병가간화계산분석과정，계산정도화결과능구응용우공정적초태분석화구해，시일충괄합우궤색이량공예공재상태하조형계산분석방법。
The integral mechanic model of the non-loading rail cable launching system was established to deal with the stiffening girders construction in suspension bridge.The rail cable segment was discretized into two-node line ele-ment.And the governing equations for the rail cable launching system,which consists of the main cable,the sling, the saddle and the rail cable,were determined.Moreover,a 1∶33 reduced-scale experimental model for the rail cable launching system of Aizhai suspension bridge was constructed.The conclusions obtained from the theoretical analysis and experiments were compared.It is shown that the results of presented calculation method match well with that from the model test.Also,the accuracy and effectiveness of the proposed method are manifested,which can be used to solve the problem about rail cable launching system and simplify the calculating process.The calculation accuracy and results for this method can be employed to the initial-state analysis.This indicates that the recommended analyti-cal method is suitable for shape-looking calculation and analysis of the non-loading rail cable launching technology.
