Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Two-way curved arch bridge dismantling method
The invention relates to a two-way curved arch bridge dismantling method. The method comprises the following steps: in the longitudinal bridge direction, installing a supporting mechanism at the bottom of the preset position of each span of main arch ring of a two-way curved arch bridge with the 1/2 section of each span of main arch ring as the symmetry axis, and the top of the supporting mechanism abuts against the corresponding main arch ring; symmetrically removing a bridge deck system from the middle of the two-way curved arch bridge to two sides along the longitudinal bridge direction, orsymmetrically removing the bridge deck system from the middle of the main arch ring to two sides; installing a linear adjusting device on the arch crown of the main arch ring, symmetrically dismantling the building on the arch from the preset position of the main arch ring, and adjusting the pressure line of the main arch ring through the linear adjusting device to make the deviation between thepressure line and the arch axis within the preset range; symmetrically dismounting the main arch ring from the preset position of the main arch ring; and removing a bearing platform, a pile foundationand shore abutments. The safety coefficient of the main arch ring structure and the construction safety can be effectively improved, the influence on the surrounding environment is small, and the defects that a traditional construction method is large in safety risk and large in influence on the environment are overcome.
本申请涉及一种双曲拱桥拆除方法，包括如下步骤：沿纵桥向，以双曲拱桥每跨主拱圈的1/2截面处为对称轴，在每跨主拱圈的预设位置处底部安装支撑机构，支撑机构顶部抵顶对应的主拱圈；沿纵桥向，从双曲拱桥中间朝两边对称拆除桥面系，或从主拱圈中间朝两边对称拆除桥面系；在主拱圈拱顶安装线形调节装置，从主拱圈的预设位置处对称拆除拱上建筑，并通过所述线形调节装置调整主拱圈的压力线，以使所述压力线与拱轴线之间的偏差处于预设范围内；从所述主拱圈的预设位置处对称拆除所述主拱圈；拆除承台、桩基和岸边桥台。本申请可有效提高主拱圈结构及施工安全的保险系数，对周围环境影响小，克服了传统施工方法的安全风险大、对环境影响大的缺陷。
Two-way curved arch bridge dismantling method
The invention relates to a two-way curved arch bridge dismantling method. The method comprises the following steps: in the longitudinal bridge direction, installing a supporting mechanism at the bottom of the preset position of each span of main arch ring of a two-way curved arch bridge with the 1/2 section of each span of main arch ring as the symmetry axis, and the top of the supporting mechanism abuts against the corresponding main arch ring; symmetrically removing a bridge deck system from the middle of the two-way curved arch bridge to two sides along the longitudinal bridge direction, orsymmetrically removing the bridge deck system from the middle of the main arch ring to two sides; installing a linear adjusting device on the arch crown of the main arch ring, symmetrically dismantling the building on the arch from the preset position of the main arch ring, and adjusting the pressure line of the main arch ring through the linear adjusting device to make the deviation between thepressure line and the arch axis within the preset range; symmetrically dismounting the main arch ring from the preset position of the main arch ring; and removing a bearing platform, a pile foundationand shore abutments. The safety coefficient of the main arch ring structure and the construction safety can be effectively improved, the influence on the surrounding environment is small, and the defects that a traditional construction method is large in safety risk and large in influence on the environment are overcome.
本申请涉及一种双曲拱桥拆除方法，包括如下步骤：沿纵桥向，以双曲拱桥每跨主拱圈的1/2截面处为对称轴，在每跨主拱圈的预设位置处底部安装支撑机构，支撑机构顶部抵顶对应的主拱圈；沿纵桥向，从双曲拱桥中间朝两边对称拆除桥面系，或从主拱圈中间朝两边对称拆除桥面系；在主拱圈拱顶安装线形调节装置，从主拱圈的预设位置处对称拆除拱上建筑，并通过所述线形调节装置调整主拱圈的压力线，以使所述压力线与拱轴线之间的偏差处于预设范围内；从所述主拱圈的预设位置处对称拆除所述主拱圈；拆除承台、桩基和岸边桥台。本申请可有效提高主拱圈结构及施工安全的保险系数，对周围环境影响小，克服了传统施工方法的安全风险大、对环境影响大的缺陷。
Two-way curved arch bridge dismantling method
一种双曲拱桥拆除方法
LIU SHUGUANG (Autor:in) / WANG WENWU (Autor:in) / JIANG YONG (Autor:in) / FAN YUANWEI (Autor:in) / WEI KUI (Autor:in) / WANG ZHIJIN (Autor:in) / CHEN HU (Autor:in) / ZHOU JUNJUN (Autor:in) / SONG YUNCHAO (Autor:in) / LU LIANG (Autor:in)
03.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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