CAJ | 학술논문

针对斜拉桥牵索式挂篮的拉索系统难以直接定位的问题，研究了拉索系统间接定位的关键技术。首先，根据悬臂实际标高与设计标高的相对关系建立了拉索系统坐标改正模型，将索道管和张拉机构从设计状态修正至实际状态。然后，建立了索道管独立坐标系，在索道管上的任意位置设置特征点，通过测量特征点坐标和计算特征点与索道管的关系来反映索道管的实际姿态，在索道管独立坐标系内间接定位索道管；通过建立索道管和张拉机构的相对关系公式，利用解析几何的方法分解张拉机构的定位要素，利用相对定位的方法间接定位张拉机构。结果表明，这种间接定位技术能消除拉索系统随悬臂摆动和悬臂预抛高导致的影响，简化了拉索系统定位的程序，使定位过程简便、直观。
침대사랍교견색식괘람적랍색계통난이직접정위적문제，연구료랍색계통간접정위적관건기술。수선，근거현비실제표고여설계표고적상대관계건립료랍색계통좌표개정모형，장색도관화장랍궤구종설계상태수정지실제상태。연후，건립료색도관독립좌표계，재색도관상적임의위치설치특정점，통과측량특정점좌표화계산특정점여색도관적관계래반영색도관적실제자태，재색도관독립좌표계내간접정위색도관；통과건립색도관화장랍궤구적상대관계공식，이용해석궤하적방법분해장랍궤구적정위요소，이용상대정위적방법간접정위장랍궤구。결과표명，저충간접정위기술능소제랍색계통수현비파동화현비예포고도치적영향，간화료랍색계통정위적정서，사정위과정간편、직관。
To solve the problem that positioning the cable vibration in cable-stayed bridge's towing-cable suspended-wagon in a direct way is difficult, an indirect positioning technology is studied. First, according to the relative relation of the real elevation and the cantilever's elevation, a coordi-nate correction model for the cable vibration is established.The cable duct and stretching institution are changed from the design state into the real state.Then, a cable duct's independent coordinate system is established.Some cable duct's feature points are set at any position.The cable duct's real posture is obtained by measuring the feature points'coordinate and calculating the relation between these points and the cable duct.The cable duct is positioned indirectly in the independent coordinate system.The formula of relative relation between the cable duct and the stretching institution is also established.The positioning elements of the stretching institution are decomposed by the analytic ge-ometry method.The stretching institution is positioned indirectly.The results show that this indirect positioning method can eliminate the effect of stretching institution caused by swing with cantilever and cantilever's presenting-height.The positioning procedure of the stretching institution can be sim-plified, and the positioning process is simple and intuitive.