The construction method of large space structure is constantly innovated. As the structural form of space structure becomes more and more diversified and the span becomes larger and larger, the construction method of the space frame structure needs to be innovated, and the construction technology has also been developed. Construction technology is crucial in the construction process of large space structure, and reasonable construction programme and scientific analysis can ensure the safety and economy of the structure.

The theoretical study of space structure has developed deeply. The early research is more inclined to the shape and analysis method of the structure under static force, and the study of simplified methods such as the simulated plate method and the difference method. After that, it gradually expanded from static force to dynamic force and from linear to nonlinear, involving issues such as static-dynamic stability of space structures, shape finding analysis of cable-membrane structures, wind vibration response of flexible structures, etc., and the above key theoretical issues have been thoroughly studied, a large number of research results have been obtained, the overall level of China's space structure theory research has entered the international advanced ranks.

Inspection and reinforcement technologies accompany the development. The space structure is mostly a public building related to national economy and people's livelihood, and also a landmark building, which adopts a large number of new materials, such as steel, membrane material and high-strength steel cables, etc. The coupling effect of factors such as environmental erosion, material aging, uneven settlement of foundation and complex load, fatigue effect and mutation effect will inevitably lead to the accumulation of structural system damages and the attenuation of resistance, which will lead to catastrophic emergencies in the extreme situation. On-site real-time health monitoring of the whole process of construction and operation of space structure engineering is carried out to achieve the prediction and forecast of disaster phenomenon of large-scale space structure engineering and provide scientific basis for taking disaster prevention and mitigation measures in advance to avoid or reduce the loss of people's lives and properties. According to the national demand for safety assessment and reinforcement technology for major projects already built or under construction, research on safety assessment methods, formulation of safety assessment indexes or guidelines for large-span projects, proposal of a full set of reinforcement technical measures, and development of a computer-based safety assessment software system capable of analysing a variety of unfavourable factors have been further developed along with the development of space structures.

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