A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of high-pier continuous rigid frame bridge
The invention provides a high-pier continuous rigid frame bridge construction method, and relates to the technical field of bridge construction, and the method comprises the following steps: 1, collecting various BIM components of a bridge, constructing a database, and selecting the bridge components of a scheme according to construction needs; 2, each main beam is dispersed into beam units, three pier bottoms are regarded as consolidation, two side span ends are regarded as chain rod supports, and unit geometric information and data of each construction stage are input into a bridge component; 3, performing construction simulation calculation by adopting finite element software, and determining a box girder design line shape, a target line shape and a pre-camber line shape; according to the method, a box girder formwork erection elevation model is constructed, during stage construction, the formwork erection elevation is lofted, and when actually measured deformation does not accord with a theoretical calculation value, calculation parameters are adjusted, a theoretical model is corrected, theoretical and actual deviation is eliminated, the rule of actual deformation is mastered, and the bridge is controlled by adjusting the formwork erection elevation; and control over the structure in the bridge construction process is guaranteed.
本发明提供了一种高墩连续刚构桥施工方法，涉及桥梁施工技术领域，包括以下步骤：步骤一：采集桥梁各种BIM构件，构建一个数据库，根据施工需要，选择方案的桥梁构件；步骤二：将各主梁离散成梁单元，三个墩底视为固结，两边跨端视为链杆支承，将单元几何信息及各施工阶段的数据输入桥梁构件；步骤三：采用有限元软件进行施工仿真计算，确定箱梁设计线形、目标线形和预拱度线形；本发明构建箱梁立模标高模型，在阶段施工时，放样立模标高，在实测变形和理论计算值不符时，调整计算参数，修正理论模型，消除理论和实际的偏差，掌握实际变形的规律，通过调整立模标高对桥梁进行把控，保证对桥梁施工过程中构造的掌控。
Construction method of high-pier continuous rigid frame bridge
The invention provides a high-pier continuous rigid frame bridge construction method, and relates to the technical field of bridge construction, and the method comprises the following steps: 1, collecting various BIM components of a bridge, constructing a database, and selecting the bridge components of a scheme according to construction needs; 2, each main beam is dispersed into beam units, three pier bottoms are regarded as consolidation, two side span ends are regarded as chain rod supports, and unit geometric information and data of each construction stage are input into a bridge component; 3, performing construction simulation calculation by adopting finite element software, and determining a box girder design line shape, a target line shape and a pre-camber line shape; according to the method, a box girder formwork erection elevation model is constructed, during stage construction, the formwork erection elevation is lofted, and when actually measured deformation does not accord with a theoretical calculation value, calculation parameters are adjusted, a theoretical model is corrected, theoretical and actual deviation is eliminated, the rule of actual deformation is mastered, and the bridge is controlled by adjusting the formwork erection elevation; and control over the structure in the bridge construction process is guaranteed.
本发明提供了一种高墩连续刚构桥施工方法，涉及桥梁施工技术领域，包括以下步骤：步骤一：采集桥梁各种BIM构件，构建一个数据库，根据施工需要，选择方案的桥梁构件；步骤二：将各主梁离散成梁单元，三个墩底视为固结，两边跨端视为链杆支承，将单元几何信息及各施工阶段的数据输入桥梁构件；步骤三：采用有限元软件进行施工仿真计算，确定箱梁设计线形、目标线形和预拱度线形；本发明构建箱梁立模标高模型，在阶段施工时，放样立模标高，在实测变形和理论计算值不符时，调整计算参数，修正理论模型，消除理论和实际的偏差，掌握实际变形的规律，通过调整立模标高对桥梁进行把控，保证对桥梁施工过程中构造的掌控。
Construction method of high-pier continuous rigid frame bridge
一种高墩连续刚构桥施工方法
LIU AILIAN (author) / XU ZHEN (author) / FAN YEGUANG (author) / YANG XUGUANG (author) / DU YUNHAO (author) / LIU KAI (author) / MA SHAOJIE (author)
2022-11-15
Patent
Electronic Resource
Chinese
Construction method of Y-shaped pier continuous rigid frame bridge
| European Patent Office | 2023
| European Patent Office | 2024
| European Patent Office | 2023