In order to prevent structural safety accidents in commercial buildings during the operation and maintenance phase and enhance the objectivity and accuracy of structural safety assessments for commercial buildings, the following steps were taken: First, a structural safety evaluation system for the operation and maintenance phase of commercial buildings was established. The weights of each evaluation indicator within the system were determined using a combined objective-subjective weighting method based on the Analytic Hierarchy Process (AHP) and the Criteria Importance Through Intercriteria Correlation (CRITIC) method. Second, by incorporating the improved TOPSIS method with interval numbers, the interval values of safety evaluation indicators corresponding to different structural safety levels of commercial buildings were determined, yielding relative proximity values under different safety condition levels. Finally, taking a commercial complex building in Changsha City as an example, the safety condition was evaluated based on on-site inspection data, and the results were compared with those from the inspection report issued by a professional inspection institution after appraisal to verify the accuracy and applicability of the established indicator system and calculation results. The study indicates that by combining industry standards and expert experience to establish the evaluation indicator system, and using the combined weighting method and the interval-based TOPSIS evaluation method improved with interval numbers on the basis of existing research, the objectivity and accuracy of structural safety assessment for commercial buildings can be enhanced.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |