A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stay cable construction tensioning method
The invention relates to a cable-stayed bridge construction method, and provides a stay cable construction tensioning method in order to shorten the construction time of a cable-stayed bridge, improvethe construction efficiency and reduce the construction cost. After construction of a main tower and a girder is completed, stay cables are installed and constructed; the stay cables are sequentiallyinstalled through the combination of a tower crane, a truck crane and winch equipment, and first-time tensioning is conducted; and a temporary steel pipe support is removed under the bridge to complete system conversion, then all accessory structures such as bridge deck pavement and guardrails are constructed, when the total load of a bridge deck is basically in place, secondary cable force tensioning of the stay cable is started, and the tensioning force reaches a designed load value to complete the construction of the whole cable-stayed bridge. Under the condition that the design requirements of the cable-stayed bridge are completely met, one tensioning construction link is omitted, the construction period is 20 days ahead of time, and the construction cost is reduced by 24.80 thousandyuan. Manpower and equipment investment is saved, the construction progress is accelerated, the construction efficiency is improved, and the method is worthy of vigorous popularization. The labor productivity is improved, the engineering quality is ensured, and benefits are created for enterprises.
本发明涉及斜拉桥施工方法，为缩短斜拉索桥的施工时间，提高施工效率，降低施工成本，提供一种斜拉索施工张拉方法。主塔与主梁施工完成后进行斜拉索的安装施工；用塔吊+汽车吊+卷扬机设备组合顺序安装斜拉索并进行第一次张拉；拆除桥下临时钢管支架完成体系转换，再施工桥面铺装、护栏等所有附属结构，桥面总载荷基本到位，开始第二次斜拉索的索力张拉，张拉力达到设计载荷值，完成整个斜拉索桥施工。本发明在完全满足斜拉索桥设计要求情况下，减少一次张拉施工环节，工期提前20天，施工成本降低24.8万元。节省了人力、设备投入，加快了施工进度，提高了施工效率，值得大力推广。提高了劳动生产率、保证工程质量，为企业创造了效益。
Stay cable construction tensioning method
The invention relates to a cable-stayed bridge construction method, and provides a stay cable construction tensioning method in order to shorten the construction time of a cable-stayed bridge, improvethe construction efficiency and reduce the construction cost. After construction of a main tower and a girder is completed, stay cables are installed and constructed; the stay cables are sequentiallyinstalled through the combination of a tower crane, a truck crane and winch equipment, and first-time tensioning is conducted; and a temporary steel pipe support is removed under the bridge to complete system conversion, then all accessory structures such as bridge deck pavement and guardrails are constructed, when the total load of a bridge deck is basically in place, secondary cable force tensioning of the stay cable is started, and the tensioning force reaches a designed load value to complete the construction of the whole cable-stayed bridge. Under the condition that the design requirements of the cable-stayed bridge are completely met, one tensioning construction link is omitted, the construction period is 20 days ahead of time, and the construction cost is reduced by 24.80 thousandyuan. Manpower and equipment investment is saved, the construction progress is accelerated, the construction efficiency is improved, and the method is worthy of vigorous popularization. The labor productivity is improved, the engineering quality is ensured, and benefits are created for enterprises.
本发明涉及斜拉桥施工方法，为缩短斜拉索桥的施工时间，提高施工效率，降低施工成本，提供一种斜拉索施工张拉方法。主塔与主梁施工完成后进行斜拉索的安装施工；用塔吊+汽车吊+卷扬机设备组合顺序安装斜拉索并进行第一次张拉；拆除桥下临时钢管支架完成体系转换，再施工桥面铺装、护栏等所有附属结构，桥面总载荷基本到位，开始第二次斜拉索的索力张拉，张拉力达到设计载荷值，完成整个斜拉索桥施工。本发明在完全满足斜拉索桥设计要求情况下，减少一次张拉施工环节，工期提前20天，施工成本降低24.8万元。节省了人力、设备投入，加快了施工进度，提高了施工效率，值得大力推广。提高了劳动生产率、保证工程质量，为企业创造了效益。
Stay cable construction tensioning method
一种斜拉索施工张拉方法
WANG XUDONG (author) / WANG NENGJING (author) / LIU YONGQING (author) / ZHAO WEN (author) / YUAN XIAOFENG (author)
2020-07-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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