Combining the structural configuration of the drum honeycomb sequence multi-braced cable dome and the material advantages of aluminium alloy, the drum honeycomb four-braced Type I open aluminium alloy suspen-dome structure is formed. Based on the AHP-TOPSIS multi-attribute decision-making method, it is found that the performance of the structure is balanced when the aluminium alloy I-beam section is used in the upper chord mesh shell part and the lower chord node radius coefficient ρ=2, which can be regarded as the optimal selection of the structure. On this basis, the static stability performance and construction error sensitivity of the structure were firstly analyzed, and then the random defect method was used to explore the influence law on the initial prestressing state and stability performance of the structure under the action of single-factor sensitive error and multi-factor sensitive coupling. The results show that: the structure is more sensitive to temperature and wind loads, especially cooling loads; span and initial prestress level are sensitive parameters affecting the stability performance of the structure; the length errors of the spinal rod, ring and diagonal cables, and the errors of the cross-section dimensions of the ring cables are the sensitive errors of the structure; the minimum ultimate load carrying capacity of the structure in the case of the coupled sensitive errors is reduced by 28.48% compared with that of the error-free state.
Kang et al. (2026) studied this question.