Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reverse pre-jacking type anchorage and construction method thereof
The invention discloses a reverse pre-jacking type anchorage and a construction method thereof, and relates to the field of suspension bridge anchorage structures. The specific construction method comprises the steps that the gravity anchorage is placed in bed rock; at least one pushing device is arranged between one end, close to the bridge tower, of the gravity anchorage and the bed rock; calculating the friction force f between the bottom of the gravity anchorage and the bed rock; the pushing device pushes the gravity anchorage with the force of F, and the component force of F in the direction opposite to the direction of f is not larger than f; and a main cable is connected to the gravity anchorage. The pushing device is arranged between the gravity anchorage and the bed rock, so that the gravity anchorage reserves friction force in the pulling force direction of the main cable, and when the main cable pulls the gravity anchorage, the friction force and pushing force can resist the horizontal pulling force of the main cable together, so that the friction force requirement of the gravity anchorage is reduced, the anchorage scale is reduced, and the construction cost is reduced. And therefore, the engineering quantity of anchorage construction is reduced.
本发明公开了一种反向预顶式锚碇及其施工方法，涉及悬索桥锚碇结构领域。具体的施工方法包括将重力锚碇放置在基岩中；在重力锚碇靠近桥塔的一端与基岩之间，设置至少一个顶推装置；计算重力锚碇的底部与基岩之间的摩擦力f；顶推装置以F的力对重力锚碇进行顶推，其中F在与f的方向相反的方向上的分力不大于f；在重力锚碇上连接主缆。本发明通过在重力锚碇与基岩之间设置顶推装置，使得重力锚碇朝主缆拉力方向储备摩擦力，在主缆拉动重力锚碇时，摩擦力和顶推力可一起抵抗主缆的水平拉力，从而减小重力锚碇的摩擦力需求，因此减小了锚碇规模，从而降低锚碇施工的工程量。
Reverse pre-jacking type anchorage and construction method thereof
The invention discloses a reverse pre-jacking type anchorage and a construction method thereof, and relates to the field of suspension bridge anchorage structures. The specific construction method comprises the steps that the gravity anchorage is placed in bed rock; at least one pushing device is arranged between one end, close to the bridge tower, of the gravity anchorage and the bed rock; calculating the friction force f between the bottom of the gravity anchorage and the bed rock; the pushing device pushes the gravity anchorage with the force of F, and the component force of F in the direction opposite to the direction of f is not larger than f; and a main cable is connected to the gravity anchorage. The pushing device is arranged between the gravity anchorage and the bed rock, so that the gravity anchorage reserves friction force in the pulling force direction of the main cable, and when the main cable pulls the gravity anchorage, the friction force and pushing force can resist the horizontal pulling force of the main cable together, so that the friction force requirement of the gravity anchorage is reduced, the anchorage scale is reduced, and the construction cost is reduced. And therefore, the engineering quantity of anchorage construction is reduced.
本发明公开了一种反向预顶式锚碇及其施工方法，涉及悬索桥锚碇结构领域。具体的施工方法包括将重力锚碇放置在基岩中；在重力锚碇靠近桥塔的一端与基岩之间，设置至少一个顶推装置；计算重力锚碇的底部与基岩之间的摩擦力f；顶推装置以F的力对重力锚碇进行顶推，其中F在与f的方向相反的方向上的分力不大于f；在重力锚碇上连接主缆。本发明通过在重力锚碇与基岩之间设置顶推装置，使得重力锚碇朝主缆拉力方向储备摩擦力，在主缆拉动重力锚碇时，摩擦力和顶推力可一起抵抗主缆的水平拉力，从而减小重力锚碇的摩擦力需求，因此减小了锚碇规模，从而降低锚碇施工的工程量。
Reverse pre-jacking type anchorage and construction method thereof
一种反向预顶式锚碇及其施工方法
HUANG XIJUN (Autor:in) / WANG WEI (Autor:in) / ZHENG HAN (Autor:in) / XIAO HAIZHU (Autor:in) / YANG GUANGWU (Autor:in) / ZHANG ZHOU (Autor:in) / LUO KOU (Autor:in) / ZHANG GUANGYU (Autor:in) / ZOU MINGWEI (Autor:in) / YANG XUEQI (Autor:in)
12.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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