Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cable-stayed bridge side span pushing closure construction method
The invention provides a cable-stayed bridge side span pushing closure construction method which comprises the following steps that S001, side span beam sections are stored on a side span high supportand connected into a whole, and when a main bridge cantilever is hoisted to the side span closure section, closure opening secondary side span beam sections are hoisted to a closure opening; S002, the secondary side span beam section of the closure gap is hoisted in place and then connected with the previous beam section, the elevation of the secondary side span beam section of the closure gap isadjusted to be close to that of the side span beam section by tensioning stay cables, the axis of the secondary side span beam section of the closure gap is adjusted through a chain block, and the side span beam section is pushed through a pushing device below the side span beam section after being adjusted in place; the side span beam section is sequentially connected with the closure gap secondary side span beam section; and S003, the elevation of the closure gap secondary side span beam section is finely adjusted through a screw jack, the closure gap secondary side span beam section and the side span beam section are connected through splice plates and high-strength bolts, and cable-stayed bridge side span closure is completed.
本发明提出一种斜拉桥边跨顶推合龙施工方法，包括以下步骤：S001：首先将边跨梁段存放在边跨高支架上，并连接成整体，主桥悬臂吊装至边跨合龙段时，吊装合龙口次边跨梁段至合龙口；S002：合龙口次边跨梁段吊装到位后与上个梁段连接，通过张拉斜拉索调整合龙口次边跨梁段高程与边跨梁段高程接近，通过手拉葫芦调整合龙口次边跨梁段轴线，调整到位后通过边跨梁段下方的顶推装置顶推边跨梁段，使边跨梁段与合龙口次边跨梁段顺接；S003：通过螺旋千斤顶对合龙口次边跨梁段的高程进行精调，通过拼接板和高强螺栓连接合龙口次边跨梁段与边跨梁段，完成斜拉桥边跨合龙。
Cable-stayed bridge side span pushing closure construction method
The invention provides a cable-stayed bridge side span pushing closure construction method which comprises the following steps that S001, side span beam sections are stored on a side span high supportand connected into a whole, and when a main bridge cantilever is hoisted to the side span closure section, closure opening secondary side span beam sections are hoisted to a closure opening; S002, the secondary side span beam section of the closure gap is hoisted in place and then connected with the previous beam section, the elevation of the secondary side span beam section of the closure gap isadjusted to be close to that of the side span beam section by tensioning stay cables, the axis of the secondary side span beam section of the closure gap is adjusted through a chain block, and the side span beam section is pushed through a pushing device below the side span beam section after being adjusted in place; the side span beam section is sequentially connected with the closure gap secondary side span beam section; and S003, the elevation of the closure gap secondary side span beam section is finely adjusted through a screw jack, the closure gap secondary side span beam section and the side span beam section are connected through splice plates and high-strength bolts, and cable-stayed bridge side span closure is completed.
本发明提出一种斜拉桥边跨顶推合龙施工方法，包括以下步骤：S001：首先将边跨梁段存放在边跨高支架上，并连接成整体，主桥悬臂吊装至边跨合龙段时，吊装合龙口次边跨梁段至合龙口；S002：合龙口次边跨梁段吊装到位后与上个梁段连接，通过张拉斜拉索调整合龙口次边跨梁段高程与边跨梁段高程接近，通过手拉葫芦调整合龙口次边跨梁段轴线，调整到位后通过边跨梁段下方的顶推装置顶推边跨梁段，使边跨梁段与合龙口次边跨梁段顺接；S003：通过螺旋千斤顶对合龙口次边跨梁段的高程进行精调，通过拼接板和高强螺栓连接合龙口次边跨梁段与边跨梁段，完成斜拉桥边跨合龙。
Cable-stayed bridge side span pushing closure construction method
一种斜拉桥边跨顶推合龙施工方法
DU HONGCHI (Autor:in) / MA JIANYONG (Autor:in) / JING GANGYI (Autor:in) / SHI JIN'AN (Autor:in) / WANG HAIHAI (Autor:in) / JIANG NENGSHI (Autor:in) / ZHANG YIJUN (Autor:in) / LI HUAQING (Autor:in) / QIAO XUENING (Autor:in) / MA ZHIQING (Autor:in)
15.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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