A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Super-large-span cable-stayed bridge side span beach ground steel beam closure method and system
The invention relates to a closure method and system for side-span beach ground steel beams of an ultra-large-span cable-stayed bridge. The closure method comprises the following steps that a first vertical jack is arranged on the temporary pier top of a sliding support on the adjacent side of a side-span side steel beam closure opening; the first vertical jack is used for adjusting the corner at the closure opening of the side span side steel beam; and the cantilever ends of the side span side steel beams and the cantilever ends of the main span side steel beams are in butt joint to complete closure. By means of the existing sliding support, the top steel beam is jacked up on the temporary pier, close to the side span steel beam closure opening, of the sliding support, the closure opening deviation can be adjusted to be within the installation precision requirement, closure sensitivity is high, jacking force is small, closure opening longitudinal deviation caused by jacking falling beams is small, the longitudinal movement amount of the steel beam is small, operation is convenient, and safety and reliability are achieved. And the closure precision and speed are effectively ensured.
本申请涉及一种超大跨度斜拉桥边跨滩地钢梁合龙方法及系统，其包括以下步骤：在边跨侧钢梁合龙口邻侧的滑移支架的临时墩顶设置第一竖向千斤顶；利用所述第一竖向千斤顶调整所述边跨侧钢梁合龙口处的转角；将所述边跨侧钢梁与主跨侧钢梁的悬臂端对接完成合龙。通过利用已有的滑移支架，在滑移支架靠近边跨钢梁合龙口的临时墩墩顶起顶钢梁，即可将合龙口偏差调整至安装精度要求之内，合龙敏感性高，起顶力小，顶落梁引起的合龙口纵向偏差小，钢梁纵向移动量小，操作方便，安全可靠，有效保证了合龙精度和速度。
Super-large-span cable-stayed bridge side span beach ground steel beam closure method and system
The invention relates to a closure method and system for side-span beach ground steel beams of an ultra-large-span cable-stayed bridge. The closure method comprises the following steps that a first vertical jack is arranged on the temporary pier top of a sliding support on the adjacent side of a side-span side steel beam closure opening; the first vertical jack is used for adjusting the corner at the closure opening of the side span side steel beam; and the cantilever ends of the side span side steel beams and the cantilever ends of the main span side steel beams are in butt joint to complete closure. By means of the existing sliding support, the top steel beam is jacked up on the temporary pier, close to the side span steel beam closure opening, of the sliding support, the closure opening deviation can be adjusted to be within the installation precision requirement, closure sensitivity is high, jacking force is small, closure opening longitudinal deviation caused by jacking falling beams is small, the longitudinal movement amount of the steel beam is small, operation is convenient, and safety and reliability are achieved. And the closure precision and speed are effectively ensured.
本申请涉及一种超大跨度斜拉桥边跨滩地钢梁合龙方法及系统，其包括以下步骤：在边跨侧钢梁合龙口邻侧的滑移支架的临时墩顶设置第一竖向千斤顶；利用所述第一竖向千斤顶调整所述边跨侧钢梁合龙口处的转角；将所述边跨侧钢梁与主跨侧钢梁的悬臂端对接完成合龙。通过利用已有的滑移支架，在滑移支架靠近边跨钢梁合龙口的临时墩墩顶起顶钢梁，即可将合龙口偏差调整至安装精度要求之内，合龙敏感性高，起顶力小，顶落梁引起的合龙口纵向偏差小，钢梁纵向移动量小，操作方便，安全可靠，有效保证了合龙精度和速度。
Super-large-span cable-stayed bridge side span beach ground steel beam closure method and system
一种超大跨度斜拉桥边跨滩地钢梁合龙方法及系统
LIU ZHIYAN (author) / DENG YUPING (author) / ZHENG GUANG (author) / LI SHILIN (author) / XU JIAPING (author) / HE JIAJIANG (author) / LIU LINGJING (author) / TU MANMING (author) / CHEN SHIMING (author) / LIU YIQI (author)
2023-12-29
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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