Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Arch bridge suspender tension optimization method for rectifying deviation in construction process
The invention discloses an arch bridge suspender tension optimization method for construction process deviation rectification, and the method comprises the steps: building a finite element model, andenabling the material characteristics, geometric characteristics and boundary conditions in the finite element model to be consistent with the external load information and the corresponding data of adesign drawing; substituting the determined group of suspender initial tension into a built finite element model to carry out normal installation analysis in a construction stage to obtain each initial value vector; and establishing an optimization model, and substituting each parameter into the optimization model to obtain a final tensioning force. The actually measured weight is corrected in time in the construction process, so that the suspender is tensioned only once and is not adjusted any more after a bridge is formed, and meanwhile it is ensured that the tension of the suspender is changed uniformly and slightly in the hoisting process; compared with a traditional tension calculation method, the method has the advantages that repeated iteration is not needed, tedious calculation isavoided, and a tension result can be obtained at a time. The method is suitable for arch bridges with different construction sequences and spans, and the application range is very wide.
本发明公开了一种施工过程纠偏的拱桥吊杆拉力优化方法，通过建立一个有限元模型，并且有限元模型中的材料特性、几何特性、边界条件与外部荷载信息应和设计图纸的相应数据一致；将确定的一组吊杆初拉力代入建好的有限元模型进行施工阶段正装分析，得到各个初始值向量；建立一个优化模型，将各参数代入优化模型得到最终张拉拉力。本发明通过在施工过程中对实测重量的及时修正，实现吊杆只一次张拉，成桥后不再调整，同时确保吊装过程中吊杆的拉力变化均匀，拉力变化小；对比传统的拉力计算方法，本方法不需要重复的迭代，避免繁琐计算，可一次性得到拉力结果。本发明适用于不同施工顺序和跨径的拱桥，适用范围非常广泛。
Arch bridge suspender tension optimization method for rectifying deviation in construction process
The invention discloses an arch bridge suspender tension optimization method for construction process deviation rectification, and the method comprises the steps: building a finite element model, andenabling the material characteristics, geometric characteristics and boundary conditions in the finite element model to be consistent with the external load information and the corresponding data of adesign drawing; substituting the determined group of suspender initial tension into a built finite element model to carry out normal installation analysis in a construction stage to obtain each initial value vector; and establishing an optimization model, and substituting each parameter into the optimization model to obtain a final tensioning force. The actually measured weight is corrected in time in the construction process, so that the suspender is tensioned only once and is not adjusted any more after a bridge is formed, and meanwhile it is ensured that the tension of the suspender is changed uniformly and slightly in the hoisting process; compared with a traditional tension calculation method, the method has the advantages that repeated iteration is not needed, tedious calculation isavoided, and a tension result can be obtained at a time. The method is suitable for arch bridges with different construction sequences and spans, and the application range is very wide.
本发明公开了一种施工过程纠偏的拱桥吊杆拉力优化方法，通过建立一个有限元模型，并且有限元模型中的材料特性、几何特性、边界条件与外部荷载信息应和设计图纸的相应数据一致；将确定的一组吊杆初拉力代入建好的有限元模型进行施工阶段正装分析，得到各个初始值向量；建立一个优化模型，将各参数代入优化模型得到最终张拉拉力。本发明通过在施工过程中对实测重量的及时修正，实现吊杆只一次张拉，成桥后不再调整，同时确保吊装过程中吊杆的拉力变化均匀，拉力变化小；对比传统的拉力计算方法，本方法不需要重复的迭代，避免繁琐计算，可一次性得到拉力结果。本发明适用于不同施工顺序和跨径的拱桥，适用范围非常广泛。
Arch bridge suspender tension optimization method for rectifying deviation in construction process
施工过程纠偏的拱桥吊杆拉力优化方法
HAO TIANZHI (Autor:in) / ZHANG ERMAO (Autor:in) / HUANG HUAKANG (Autor:in) / WANG LONGLIN (Autor:in) / ZHANG QIAO (Autor:in) / HUANG KAINAN (Autor:in)
25.08.2020
Patent
Elektronische Ressource
Chinesisch
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