Construction error compensating method for cable dome structure
A technology of construction error and compensation method, which is applied in the direction of building structure, construction, and building material processing, and can solve the problems of less research on component dimensional accuracy control
Active Publication Date: 2014-11-19
CHINA AVIATION PLANNING & DESIGN INST GRP
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Problems solved by technology
Although domestic scholars have paid attention to cable domes and carried out researches for a long time, they mainly focused on the determination of the cable dome structural system, the analysis of static and dynamic characteristics of the structure, and the study of model tests. There are few studies on component dimensional accuracy control
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Embodiment Construction
[0021] 2) Add a length adjusting device 13 to the outer oblique cable 6 and the outer ridge cable 12 to make the length adjustable.
[0022] 3) Use a total station to measure the center of the hole 14 of the cable lug 14 on the outer ring beam 15 multiple times. During the measurement process, the influence of temperature and accidental measurement errors is taken into account and the average value is taken to accurately measure the cable lug 14 on the outer ring beam 15. Radial construction deviation, control measurement error within ± 3mm.
[0023] 4) Determine the adjustment amount of the outer ridge cable and the outer oblique cable according to the measurement results, so as to effectively eliminate the influence caused by the construction deviation of the lug plate 14 on the outer ring beam 15 .
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The invention relates to a construction error compensating method for a cable dome structure. The method is implemented through the following steps of: firstly, making sure that installation errors of a peripheral steel structure and a cable ear plate on an outer ring beam which is connected with the peripheral steel structure meet specifications and design requirements, setting an inner ridge cable, an inner oblique cable, a middle ridge cable, a middle oblique cable and an annular cable of a cable dome tensioning structure as fixed-length cables, and blanking according to a designed length; secondly, arranging cable length adjusting devices in an outer oblique cable and an outer ridge cable of the cable dome tensioning structure to enable the lengths of the outer oblique cable and the outer ridge cable to be adjustable; thirdly, before installing a cable dome, accurately measuring the hole center of the cable ear plate on the outer ring beam which is connected with the peripheral steel structure by using a total station repeatedly, and accurately measuring the radial construction error of the cable ear plate on the outer ring beam; and finally, determining the adjusting quantities of the outer oblique cable and the outer ridge cable according to a measured construction error result, and adjusting the cable length adjusting devices to determine the final installation lengths of the outer ridge cable and the outer oblique cable. Due to the adoption of the method, the adverse effects of the construction error of the cable ear plate on the outer ring beam on the practical pre-stress after installation and in-place of the structure are reduced effectively.
Description
technical field [0001] The invention relates to a construction technology method of a cable dome tension structure, in particular to a method for compensating and adjusting errors during the construction process of the cable dome tension structure. Background technique [0002] At present, many buildings in foreign countries have adopted the cable dome structure. In China, except for Taiwan, until the cable dome of the Yiqi National Fitness and Sports Center in Inner Mongolia, there has been no real cable dome. One of the main reasons is that the cable dome has not been mastered. Key construction techniques for structures. Although domestic scholars have paid attention to cable domes and carried out researches for a long time, they mainly focused on the determination of the cable dome structural system, the analysis of static and dynamic characteristics of the structure, and the study of model tests. The research on construction technology, especially the construction deviat...
Claims
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IPC IPC(8): E04G21/00E04G21/12
Inventor 王树王泽强张曼生张国军葛家琪
Owner CHINA AVIATION PLANNING & DESIGN INST GRP