CAJ | 학술논문

为了更好的得到较优的斜拉索索力值，确定大跨度混合梁斜拉桥的合理成桥状态，建立了全桥的空间有限元仿真分析模型，针对大跨度混合梁斜拉桥的跨径布置和结构特点，分析合理成桥状态的确定方法和基本原则，确定了其合理成桥状态采用了影响矩阵法和最小弯曲能量法两种方法综合计算，并以主塔和主梁的最大位移最小为目标的方法。经计算，结构在成桥状态和运营状态下的主梁、主塔和斜拉索应力均满足规范要求，确定的斜拉桥合理成桥状态符合要求。
위료경호적득도교우적사랍색색력치，학정대과도혼합량사랍교적합리성교상태，건립료전교적공간유한원방진분석모형，침대대과도혼합량사랍교적과경포치화결구특점，분석합리성교상태적학정방법화기본원칙，학정료기합리성교상태채용료영향구진법화최소만곡능량법량충방법종합계산，병이주탑화주량적최대위이최소위목표적방법。경계산，결구재성교상태화운영상태하적주량、주탑화사랍색응력균만족규범요구，학정적사랍교합리성교상태부합요구。
In order to obtain the optimal values of cable force ,and determine the reasonable finished bridge state for large span composite girder cable‐stayed bridge ,the space finite element simulation a‐nalysis model of the w hole bridge is established .Considering the characteristics of its span arrange‐ment and structure ,the method and basic principles for determining the reasonable finished bridge state is analyzed ,calculated with the influence matrix method and minimum bending energy method , and the objective function is minimization the maximum displacement of tower and girder .Through calculation ,the stress of the main pylon ,the main girder and the stay cables in the finished state and the operating state can satisfy the requirements of standard , the reasonable finished state of cable‐stayed bridge in accordance with the requirements .