A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Positioning construction method for steel anchor box of arch-shaped main tower of cable-stayed bridge
The invention provides a cable-stayed bridge circular-arch-shaped main tower steel anchor box positioning construction method which comprises the following steps that S1, the axial line shape and perpendicularity of a main tower are measured, and the installation time period of a steel anchor box is determined; s2, mounting positioning points of the segment steel anchor box are determined and arranged; s3, the installation positioning points determined in the S2 are measured again, and the segment steel anchor box is installed; s4, a cable guide pipe anchoring point and a cable guide pipe outlet position point are determined on the segment steel anchor box, and a cable guide pipe outlet IP lofting identification point is set; s5, re-measuring the IP lofting identification point at the outlet of the cable conduit, and installing the pre-embedded section of the cable conduit; s6, the formwork is installed on the tower wall of the main tower, a cable guide pipe transition connecting steel plate is connected to the end of the cable guide pipe pre-buried section, and a cable guide pipe rear connecting section is connected to the cable guide pipe transition connecting steel plate; and S7, repeating the steps S2-S6. The method has the effect that the problems that in the prior art, installation of the steel anchor box in the main tower is large in positioning difficulty, installation is not accurate, and the box construction period and the construction cost are low are solved.
本发明提供了一种斜拉桥圆拱形主塔钢锚箱定位施工方法，其包括以下步骤：S1、测量主塔的轴向线形和垂直度，并确定钢锚箱的安装时间段；S2、确定节段钢锚箱的安装定位点，并布设；S3、复测S2中确定的安装定位点，并安装节段钢锚箱；S4、在节段钢锚箱上确定索导管锚固点和索导管出口位置点，并设置索导管出口IP放样标识点；S5、复测索导管出口IP放样标识点，并安装索导管预埋段；S6、将模板安装于主塔塔壁，并在索导管预埋段端部连接索导管过渡连接钢板，并在索导管过渡连接钢板上连接索导管后连接段；S7、重复步骤S2‑S6。本发明具有改善现有技术中主塔内钢锚箱的安装存在定位难度较大，导致安装不精准，因箱施工周期和施工成本的问题的效果。
Positioning construction method for steel anchor box of arch-shaped main tower of cable-stayed bridge
The invention provides a cable-stayed bridge circular-arch-shaped main tower steel anchor box positioning construction method which comprises the following steps that S1, the axial line shape and perpendicularity of a main tower are measured, and the installation time period of a steel anchor box is determined; s2, mounting positioning points of the segment steel anchor box are determined and arranged; s3, the installation positioning points determined in the S2 are measured again, and the segment steel anchor box is installed; s4, a cable guide pipe anchoring point and a cable guide pipe outlet position point are determined on the segment steel anchor box, and a cable guide pipe outlet IP lofting identification point is set; s5, re-measuring the IP lofting identification point at the outlet of the cable conduit, and installing the pre-embedded section of the cable conduit; s6, the formwork is installed on the tower wall of the main tower, a cable guide pipe transition connecting steel plate is connected to the end of the cable guide pipe pre-buried section, and a cable guide pipe rear connecting section is connected to the cable guide pipe transition connecting steel plate; and S7, repeating the steps S2-S6. The method has the effect that the problems that in the prior art, installation of the steel anchor box in the main tower is large in positioning difficulty, installation is not accurate, and the box construction period and the construction cost are low are solved.
本发明提供了一种斜拉桥圆拱形主塔钢锚箱定位施工方法，其包括以下步骤：S1、测量主塔的轴向线形和垂直度，并确定钢锚箱的安装时间段；S2、确定节段钢锚箱的安装定位点，并布设；S3、复测S2中确定的安装定位点，并安装节段钢锚箱；S4、在节段钢锚箱上确定索导管锚固点和索导管出口位置点，并设置索导管出口IP放样标识点；S5、复测索导管出口IP放样标识点，并安装索导管预埋段；S6、将模板安装于主塔塔壁，并在索导管预埋段端部连接索导管过渡连接钢板，并在索导管过渡连接钢板上连接索导管后连接段；S7、重复步骤S2‑S6。本发明具有改善现有技术中主塔内钢锚箱的安装存在定位难度较大，导致安装不精准，因箱施工周期和施工成本的问题的效果。
Positioning construction method for steel anchor box of arch-shaped main tower of cable-stayed bridge
一种斜拉桥圆拱形主塔钢锚箱定位施工方法
YANG JIEJUN (author) / QIAO HENG (author) / LIU QING (author) / LI XINBIN (author) / DENG XIAOSONG (author) / YANG XUAN (author) / ZHAO ZHIWU (author) / LI QIANG (author) / XING GUOPING (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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