A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-anchored cable-stayed bridge and erection method comprising same
The invention discloses a self-anchored cable-stayed bridge and an erecting method comprising the same. The self-anchored cable-stayed bridge comprises a bridge tower and a tower foundation, wherein the tower foundation is fixed on a foundation, and the bridge tower is fixed at the upper end of the tower foundation; side span auxiliary piers; a main beam, which is provided with vertical supports at the bridge tower and the side span auxiliary piers; a plurality of first inhaul cables, wherein the two ends of the first inhaul cables are connected with the bridge tower and the main beam correspondingly; and telescopic devices, which are arranged at the positions where the axial force of the main beam is zero. The main beams between the bridge tower and the telescopic devices are pressed, the axial force of the main beams at the positions where the telescopic devices are installed is zero, and the main beams between every two adjacent telescopic devices are pulled, so that the axial pressure borne by the main beams at the bridge tower is reduced, the limit span of the main beams is increased while the stability of the main beams of the self-anchored cable-stayed bridge is guaranteed, and the axial force of the main beams at the bridge tower is not increased in the construction process.
本发明公开了一种自锚式斜拉桥及包含其的架设方法，其中，自锚式斜拉桥包括：桥塔和塔基础，塔基础固定于地基，桥塔固定于塔基础上端；边跨辅助墩；主梁，主梁在桥塔和边跨辅助墩处设置竖直支撑；第一拉索，若干个第一拉索的两端分别与桥塔和主梁连接；伸缩装置，主梁轴向力为零的位置设置有伸缩装置。桥塔与伸缩装置之间的主梁受压，在安装伸缩装置处的主梁轴向力为零，并且相邻两个伸缩装置间的主梁受拉，减小了桥塔处主梁承受的轴向压力，在保证自锚式斜拉桥主梁稳定性的同时，增加了主梁的极限跨径，并使得桥塔处主梁在施工过程中不增加轴力。
Self-anchored cable-stayed bridge and erection method comprising same
The invention discloses a self-anchored cable-stayed bridge and an erecting method comprising the same. The self-anchored cable-stayed bridge comprises a bridge tower and a tower foundation, wherein the tower foundation is fixed on a foundation, and the bridge tower is fixed at the upper end of the tower foundation; side span auxiliary piers; a main beam, which is provided with vertical supports at the bridge tower and the side span auxiliary piers; a plurality of first inhaul cables, wherein the two ends of the first inhaul cables are connected with the bridge tower and the main beam correspondingly; and telescopic devices, which are arranged at the positions where the axial force of the main beam is zero. The main beams between the bridge tower and the telescopic devices are pressed, the axial force of the main beams at the positions where the telescopic devices are installed is zero, and the main beams between every two adjacent telescopic devices are pulled, so that the axial pressure borne by the main beams at the bridge tower is reduced, the limit span of the main beams is increased while the stability of the main beams of the self-anchored cable-stayed bridge is guaranteed, and the axial force of the main beams at the bridge tower is not increased in the construction process.
本发明公开了一种自锚式斜拉桥及包含其的架设方法，其中，自锚式斜拉桥包括：桥塔和塔基础，塔基础固定于地基，桥塔固定于塔基础上端；边跨辅助墩；主梁，主梁在桥塔和边跨辅助墩处设置竖直支撑；第一拉索，若干个第一拉索的两端分别与桥塔和主梁连接；伸缩装置，主梁轴向力为零的位置设置有伸缩装置。桥塔与伸缩装置之间的主梁受压，在安装伸缩装置处的主梁轴向力为零，并且相邻两个伸缩装置间的主梁受拉，减小了桥塔处主梁承受的轴向压力，在保证自锚式斜拉桥主梁稳定性的同时，增加了主梁的极限跨径，并使得桥塔处主梁在施工过程中不增加轴力。
Self-anchored cable-stayed bridge and erection method comprising same
自锚式斜拉桥及包含其的架设方法
JIANG YANG (author) / LI WENBO (author) / SHAO CHANGYU (author) / CHANG FUPING (author)
2021-08-24
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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