A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Single-tower self-anchored suspension bridge system conversion construction method with first beam and second cable
The invention belongs to the technical field of self-anchored suspension bridge construction, and particularly relates to a beam-first and cable-second single-tower self-anchored suspension bridge system conversion construction method. The method comprises the following steps: preparing system conversion construction; then carrying out regional coding on full-bridge slings to obtain R1-region slings, R2-region slings, R3-region slings and R4-region slings; then, the slings in the R1 area are tensioned to the control force value at a time, the slings in the R2 area are tensioned to the control force value in a graded mode, the slings in the R3 area are tensioned to the control force value at a time, and the slings in the R4 area are tensioned to the control force value; and finally, dismantling the temporary support of the main beam, and applying a second-phase dead load to complete system conversion. According to the method, the full-bridge slings are tensioned in a partitioned mode, repeated tensioning of most of the slings and frequent large-range movement and mounting and dismounting of tensioning equipment are avoided, and therefore tensioning procedure connection is accelerated, the construction efficiency is improved, the temporary facility cost is saved, and the construction period is shortened.
本发明属于自锚式悬索桥施工技术领域，特别涉一种先梁后缆的独塔自锚式悬索桥体系转换施工方法。该方法首先进行体系转换施工准备；然后对全桥吊索进行分区域编码为R1区吊索、R2区吊索、R3区吊索和R4区吊索；然后分别将R1区吊索一次张拉至控制力值，将R2区吊索分级张拉至控制力值，将R3区吊索一次张拉至控制力值，将R4区吊索张拉至控制力值；最后拆除主梁临时支架，施加二期恒载，完成体系转换。本发明通过对全桥吊索进行分区张拉，避免了重复张拉大多数吊索和频繁大范围移动、安拆张拉设备，从而加快了张拉工序衔接，提高施工效率，节约了临时设施成本、缩短工期。
Single-tower self-anchored suspension bridge system conversion construction method with first beam and second cable
The invention belongs to the technical field of self-anchored suspension bridge construction, and particularly relates to a beam-first and cable-second single-tower self-anchored suspension bridge system conversion construction method. The method comprises the following steps: preparing system conversion construction; then carrying out regional coding on full-bridge slings to obtain R1-region slings, R2-region slings, R3-region slings and R4-region slings; then, the slings in the R1 area are tensioned to the control force value at a time, the slings in the R2 area are tensioned to the control force value in a graded mode, the slings in the R3 area are tensioned to the control force value at a time, and the slings in the R4 area are tensioned to the control force value; and finally, dismantling the temporary support of the main beam, and applying a second-phase dead load to complete system conversion. According to the method, the full-bridge slings are tensioned in a partitioned mode, repeated tensioning of most of the slings and frequent large-range movement and mounting and dismounting of tensioning equipment are avoided, and therefore tensioning procedure connection is accelerated, the construction efficiency is improved, the temporary facility cost is saved, and the construction period is shortened.
本发明属于自锚式悬索桥施工技术领域，特别涉一种先梁后缆的独塔自锚式悬索桥体系转换施工方法。该方法首先进行体系转换施工准备；然后对全桥吊索进行分区域编码为R1区吊索、R2区吊索、R3区吊索和R4区吊索；然后分别将R1区吊索一次张拉至控制力值，将R2区吊索分级张拉至控制力值，将R3区吊索一次张拉至控制力值，将R4区吊索张拉至控制力值；最后拆除主梁临时支架，施加二期恒载，完成体系转换。本发明通过对全桥吊索进行分区张拉，避免了重复张拉大多数吊索和频繁大范围移动、安拆张拉设备，从而加快了张拉工序衔接，提高施工效率，节约了临时设施成本、缩短工期。
Single-tower self-anchored suspension bridge system conversion construction method with first beam and second cable
一种先梁后缆的独塔自锚式悬索桥体系转换施工方法
DING JING (author) / SUN MAO (author) / MA TENG (author) / CAI YU (author) / WANG XIANGDONG (author) / LIU ZHIQING (author)
2023-09-29
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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