摘要
T型刚构转体桥施工过程中,如何使成桥后的内力和线性满足实际规范要求,是施工中的难点。结合工程实例采用最优控制理论与计算机相结合的技术,将主桥成桥线性和施工期结构变化状态作为线性离散,确定控制系统最优控制对象。采用卡尔曼波法建立离散模型,不断对各阶段进行调整、控制。最后得出各节段的实际标高与预测标高和设计标高的变化趋势是大致相同的,实际标高是围绕着预测标高和设计标高上下波动。为今后类似桥梁的施工监控提供经验借鉴。
During the construction of T-rigid frame turret bridge,the optimal controlling object of the control system is determined by integrating the oplimal control theory with computers,and combining with project examples,as well as taking the linearity of the main bridge and structural change state of construction phase as linear discrete time.Kalman filter method is used to set up a discrete model to adjust and control various stages.By which the changes in actual and predicted elevations for various sections are about the same as those of the design.
出处
《工业建筑》
CSCD
北大核心
2009年第S1期1079-1081,1065,共4页
Industrial Construction
关键词
转体刚构桥
成桥线性
成桥内力
离散模型
调整控制
标高
施工监控
rigid frame turret bridge
linearity of bridge
internal force of bridge
discrete model
adjustment control
elevation
construction monitoring
