中国安全科学学报 ›› 2025, Vol. 35 ›› Issue (4): 173-180.doi: 10.16265/j.cnki.issn1003-3033.2025.04.1204

• 公共安全 • 上一篇    下一篇

既有大跨度钢网架结构体育场馆安全性评定

贾丽欣 副教授1(), 吕文浩1, 裴兴旺 高级工程师2, 孙成1, 李文龙3   

  1. 1 西安建筑科技大学 体育学院,陕西 西安 710055
    2 中天西北建设投资集团有限公司,陕西 西安 710065
    3 北京建筑大学 城市经济与管理学院,北京 100044
  • 收稿日期:2024-12-14 修回日期:2025-02-18 出版日期:2025-04-28
  • 作者简介:

    贾丽欣 (1980—),女,河北石家庄人,博士,副教授,主要从事大跨度钢结构安全评价等方面的研究。E-mail:

  • 基金资助:
    国家自然科学基金资助(51908452); 陕西省社会科学基金资助(2023Q011)

Safety assessment of existing stadiums with large-span steel grid structures

JIA Lixin1(), LYU Wenhao1, PEI Xingwang2, SUN Cheng1, LI Wenlong3   

  1. 1 School of Physical Education, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
    2 Zhongtian Northwest Construction Investment Group, Xi'an Shaanxi 710065, China
    3 School of Urban and Economic Management, Beijing Architecture University, Beijing 100044, China
  • Received:2024-12-14 Revised:2025-02-18 Published:2025-04-28

摘要:

为提升既有大跨度钢网架结构体育场馆安全性,从地基基础、上部结构、围护结构等3个角度出发,构建24个因素影响层指标,并采用博弈论综合主客观赋权法对安全性评定指标体系进行赋权;通过荷载传力路径划分构件重要性等级,并严格界定不同指标安全性等级临界值,确立物元可拓评价模型。基于物元可拓模型,对5个既有大跨度钢网架结构体育场馆进行数据采集与模型应用,并以甲体育馆为例进行实证分析。结果表明:甲体育馆在常规荷载(工况1、工况2)下安全性等级为Ⅱ级,但在极限荷载(工况3)下安全性等级为Ⅲ级,需重点监测构件锈蚀与变形问题;5个既有大跨度钢网架结构体育场馆模型评定结果与专家现场勘验结果吻合度达91.35%。研究证实,该模型能有效量化复杂工况下的既有大跨度钢网架结构体育场馆结构安全性。

关键词: 即有大跨度, 钢网架结构, 体育场馆, 安全性评定, 物元可拓

Abstract:

In order to improve the safety of existing large-span steel grid structure stadiums and gymnasiums, from the three perspectives of foundation, superstructure and enclosure structure, 24 factors influencing layer indexes were constructed, and the safety evaluation index system was weighted by game theory comprehensive subjective and objective weighting method. The importance grade of components was divided by load transfer path analysis, and the critical value of safety grade of different indexes was strictly defined, and the matter-element extension evaluation model was established. Based on the matter-element extension model, the data collection and model application of five existing large-span steel grid structure stadiums were carried out, and the stadium was taken as an example for empirical analysis. The results show that the safety grade of the stadium is grade II under the normal load (working conditions 1, 2), but the safety grade is grade III under the extreme load (working condition 3), and the corrosion and deformation of the components need to be monitored. The agreement rate between the evaluation results of the five existing large-span steel grid structure stadiums model and the on-site inspection results by experts is 91.35%. The research confirms that the model can effectively quantify the structural safety of existing large-span steel grid structure stadiums under complex working conditions.

Key words: existing large span, steel grid structure, stadiums, safety assessment, matter-element extension

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