A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge support replacing method
The invention relates to a bridge support replacing method which comprises the following steps: establishing a bridge actual state finite element model based on bridge information; on the basis of the bridge actual state finite element model, different jacking working conditions are simulated, and the maximum allowable jacking amount of the bridge during jacking is determined; based on the maximum allowable jacking amount of the bridge and the demanded height for dismantling the old support and installing the new support, the first jacking height at the position of the replaced support and the second jacking height at the positions of the front pier column and the rear pier column at the position of the replaced support are determined when the new support is replaced; according to the first jacking height and the second jacking height, the bridge is jacked, an old support is dismantled, and a new support is installed; and the bridge is lowered, and the bridge is reset. According to the method, before the support is replaced, through bridge information, a bridge actual state finite element model is established, and when the new support is replaced, the first jacking height at the support replacement position and the second jacking height at the front pier column and the rear pier column at the support replacement position are determined, so that the influence of support replacement on the bridge is reduced to the minimum.
本申请涉及一种桥梁支座更换方法，其包括：基于桥梁信息，建立桥梁实际状态有限元模型；基于桥梁实际状态有限元模型，模拟不同顶升工况，并确定顶升时桥梁的最大容许顶升量；基于桥梁的最大容许顶升量和旧支座拆除及新支座安装的需求高度，确定更换新支座时，更换支座处的第一顶升高度以及更换支座处前后墩柱处的第二顶升高度；根据第一顶升高度和第二顶升高度，顶升桥梁，拆除旧支座，安装新支座；落梁，对桥梁进行复位。本发明中，在支座更换前，通过桥梁信息，建立桥梁实际状态有限元模型，确定更换新支座时，更换支座处的第一顶升高度以及更换支座处前后墩柱处的第二顶升高度，使支座更换的对桥梁的影响降到最低。
Bridge support replacing method
The invention relates to a bridge support replacing method which comprises the following steps: establishing a bridge actual state finite element model based on bridge information; on the basis of the bridge actual state finite element model, different jacking working conditions are simulated, and the maximum allowable jacking amount of the bridge during jacking is determined; based on the maximum allowable jacking amount of the bridge and the demanded height for dismantling the old support and installing the new support, the first jacking height at the position of the replaced support and the second jacking height at the positions of the front pier column and the rear pier column at the position of the replaced support are determined when the new support is replaced; according to the first jacking height and the second jacking height, the bridge is jacked, an old support is dismantled, and a new support is installed; and the bridge is lowered, and the bridge is reset. According to the method, before the support is replaced, through bridge information, a bridge actual state finite element model is established, and when the new support is replaced, the first jacking height at the support replacement position and the second jacking height at the front pier column and the rear pier column at the support replacement position are determined, so that the influence of support replacement on the bridge is reduced to the minimum.
本申请涉及一种桥梁支座更换方法，其包括：基于桥梁信息，建立桥梁实际状态有限元模型；基于桥梁实际状态有限元模型，模拟不同顶升工况，并确定顶升时桥梁的最大容许顶升量；基于桥梁的最大容许顶升量和旧支座拆除及新支座安装的需求高度，确定更换新支座时，更换支座处的第一顶升高度以及更换支座处前后墩柱处的第二顶升高度；根据第一顶升高度和第二顶升高度，顶升桥梁，拆除旧支座，安装新支座；落梁，对桥梁进行复位。本发明中，在支座更换前，通过桥梁信息，建立桥梁实际状态有限元模型，确定更换新支座时，更换支座处的第一顶升高度以及更换支座处前后墩柱处的第二顶升高度，使支座更换的对桥梁的影响降到最低。
Bridge support replacing method
一种桥梁支座更换方法
YAN JIA (author) / WANG YONGTAO (author) / LIU YIFAN (author) / SU QI (author) / LI YANRONG (author) / CHEN PENG (author) / CHENG YONG (author) / CHEN WEN (author) / XU YOUTAO (author) / CHEN ZHIZHONG (author)
2024-10-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken