Innovation and development of construction methods of large space frame structures

The construction method of large space frame structure is constantly innovated.With the increasing diversity and span of space structure, the construction method of space frame structure needs to be innovated, and the construction technology has also been developed.Construction technology is very important in the construction of large space structure. Only reasonable construction scheme and scientific analysis can guarantee the safety and economy of the structure.

Theoretical research on spatial structure has been further developed.With the continuous innovation of space structure system and form, the theory of space structure will inevitably develop in depth and breadth.Earlier studies had more focus on static under the action of shape and structure analysis method, and the simplified method such as quasi plate method, the finite difference method study, after gradually from static to dynamic, from linear to nonlinear, on the spatial structure of the static and dynamic stability, cable membrane structure for shape analysis, the wind-induced vibration of flexible structure, and so on, the key theoretical issues in-depth study, has made a lot of research results, the overall level of China's space structure theory research into the international advanced level.

With the development of detection and reinforcement technology.Spatial structure for the public building of relationship of the national economy and people's livelihood, is also a landmark building, use of new materials, including steel, membrane material, high strength steel wire rope, environmental erosion, material aging, uneven settlement of foundation and complex load, fatigue effect and mutation effect factors such as the coupling effect will inevitably lead to the damage accumulation and resistance force of structure system attenuation, extreme cases of catastrophic events.Real-time on-site health monitoring is carried out for the whole construction process and operation of space structure projects, so as to realize the prediction and forecast of catastrophic phenomena in large space structure projects, and provide scientific basis for taking disaster prevention and mitigation measures in advance to avoid or reduce the loss of people's lives and property.Already built or under construction according to the national major project of the demand of the safety evaluation and reinforcement technology, safety assessment methods, making the safety of long-span engineering evaluation indicators or standards, strengthening technology of a complete set of measures are put forward, is developed to analyze a variety of adverse factors of computer security evaluation software system with the development of the space structure and obtain further development.

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