Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-pressing construction method of assembly type 0 # block construction bracket
The invention discloses a pre-pressing construction method for a fabricated 0 # block construction bracket, and belongs to the technical field of bridges. The method comprises the following steps: mounting the 0 # block construction bracket, pre-pressing by using a pre-pressing assembly in a graded tension loading manner, and removing the 0 # block construction bracket. When the pre-pressing load piece is tensioned and loaded, the tensioning ends of the steel strands bear tensioning stress which is tensioned inwards along the top wall, the tensioning stress acts on the upper longitudinal beam assembly through pulley limiting and direction changing, the anchoring ends of the steel strands are tensioned downwards, and pre-pressing load is achieved. The steel strands are converted in the horizontal and vertical directions. The length of the steel strands is the stroke of the upper longitudinal beam assembly bent to the top wall of the bridge pier body through the lower counter-force beam assembly, is only related to the length of the upper longitudinal beam assembly, the distance between the upper longitudinal beam assembly and the lower counter-force beam assembly, the length of the lower counter-force beam assembly, the distance between the lower counter-force beam assembly and the top wall of the bridge pier body and the like, and is not related to the height of the bridge pier body, and the stress loss of the steel strands is effectively reduced.
本发明公开了一种装配式0#块施工托架的预压施工方法，属于桥梁技术领域，包括安装0#块施工托架、利用预压组件采用分级张拉加载方式进行预压及拆除0#块施工托架。本发明在预压荷载件张拉加载时，钢绞线张拉端受到沿顶壁向内张拉的张拉应力，张拉应力经滑轮限位及变向作用在上纵梁组件上，钢绞线锚固端向下张拉，实现预压荷载。钢绞线在水平向及竖向上变换，其长度为由上纵梁组件经下反力梁组件弯折至桥梁墩身顶壁的行程，只与上纵梁组件长度和其至下反力梁组件距离及下反力梁组件长度和其至桥梁墩身顶壁距离等相关，与桥梁墩身高度无关，有效降低钢绞线应力损失。
Pre-pressing construction method of assembly type 0 # block construction bracket
The invention discloses a pre-pressing construction method for a fabricated 0 # block construction bracket, and belongs to the technical field of bridges. The method comprises the following steps: mounting the 0 # block construction bracket, pre-pressing by using a pre-pressing assembly in a graded tension loading manner, and removing the 0 # block construction bracket. When the pre-pressing load piece is tensioned and loaded, the tensioning ends of the steel strands bear tensioning stress which is tensioned inwards along the top wall, the tensioning stress acts on the upper longitudinal beam assembly through pulley limiting and direction changing, the anchoring ends of the steel strands are tensioned downwards, and pre-pressing load is achieved. The steel strands are converted in the horizontal and vertical directions. The length of the steel strands is the stroke of the upper longitudinal beam assembly bent to the top wall of the bridge pier body through the lower counter-force beam assembly, is only related to the length of the upper longitudinal beam assembly, the distance between the upper longitudinal beam assembly and the lower counter-force beam assembly, the length of the lower counter-force beam assembly, the distance between the lower counter-force beam assembly and the top wall of the bridge pier body and the like, and is not related to the height of the bridge pier body, and the stress loss of the steel strands is effectively reduced.
本发明公开了一种装配式0#块施工托架的预压施工方法，属于桥梁技术领域，包括安装0#块施工托架、利用预压组件采用分级张拉加载方式进行预压及拆除0#块施工托架。本发明在预压荷载件张拉加载时，钢绞线张拉端受到沿顶壁向内张拉的张拉应力，张拉应力经滑轮限位及变向作用在上纵梁组件上，钢绞线锚固端向下张拉，实现预压荷载。钢绞线在水平向及竖向上变换，其长度为由上纵梁组件经下反力梁组件弯折至桥梁墩身顶壁的行程，只与上纵梁组件长度和其至下反力梁组件距离及下反力梁组件长度和其至桥梁墩身顶壁距离等相关，与桥梁墩身高度无关，有效降低钢绞线应力损失。
Pre-pressing construction method of assembly type 0 # block construction bracket
一种装配式0#块施工托架的预压施工方法
ZHENG ZHUAN (Autor:in) / YU YUANZHI (Autor:in) / HUANG XIANGJIAN (Autor:in) / YUAN DEREN (Autor:in) / XIA DONG (Autor:in) / XUE HONGYA (Autor:in) / HUANG ZHIJUN (Autor:in) / LIANG SHENG (Autor:in) / LAO ZENGHAO (Autor:in) / ZHOU HONGJIAN (Autor:in)
10.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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