箱板装配式组合墙耐火极限研究

兰涛; 贺青青; 薛辰; 秦广冲; 门进杰; 赵钿

doi:10.13204/j.gyjzG20042003

箱板装配式组合墙耐火极限研究

doi: 10.13204/j.gyjzG20042003

兰涛^1,2,
贺青青¹,
薛辰¹,
秦广冲¹,
门进杰^2, ,,
赵钿³

1. 中国船舶重工集团国际工程有限公司, 北京 100121;
2. 西安建筑科技大学土木工程学院, 西安 710055;
3. 中国建筑设计研究院有限公司, 北京 100089

基金项目:

国家重点研发计划项目(2017YFC0703406)

中国船舶重工集团科技创新与研发项目(201815k)

首规委支持科研基金项目(2017-016)

陕西省教育厅重点实验室项目(17JS062)。

详细信息

作者简介:
兰涛,男,1976年出生,博士,研究员。

通讯作者:
门进杰,男,1979年出生,博士,教授,men2009@163.com。

计量
- 文章访问数: 100
- HTML全文浏览量: 5
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2020-04-20
- 网络出版日期: 2023-05-25
- 刊出日期: 2023-01-20

Research on Fire Endurance of Prefabricated Box-Plate Composite Walls

1. CSIC International Engineering Co., Ltd., Beijing 100121, China;
2. School of Civil Engineering, Xian University of Architecture & Technology, Xi’an 710055, China;
3. China Architecture Design & Research Group, Beijing 100089, China

摘要

摘要: 箱板装配式组合墙具有良好的抗震性能,为使组合墙在实际工程中满足设计标准要求的耐火极限,对其设计了抗火构造措施,并建立了耐火极限分析模型。模型中对组成抗火构造措施的各部分:岩棉厚度、龙骨间距和开孔排数、石膏板层数和厚度、覆面板材种类、高厚比、轴压比进行参数分析。结果表明,当岩棉厚度超过100 mm后,增加岩棉厚度能更加有效地提高墙体的耐火极限;增加受火面覆面板材厚度和层数也可大幅度提升耐火极限;轴压比对耐火极限影响显著,而龙骨间距和开孔排数几乎无影响。根据上述分析结果提出抗火优化设计方法,为箱板装配式体系防火设计提供理论支持。
- 箱板装配式钢结构 /
- 组合墙 /
- 耐火极限 /
- 抗火优化设计
Abstract: Prefabricated box-plate composite walls have good seismic performances. In order that the box-plate composite walls might applied to practices meet the requirements of fire endurance in specifications, the fire-resistant structural measures were designed and the fire-resistant limit analysis model was constructed. The parameters of the fire-resistant structural measures for the walls were analyzed, which included rock wool thickness, keel spacing and number of rows of openings, gypsum board layer and thickness, cladding sheet types, depth-thickness ratio, and axial compression ratio. The results showed that after the thickness of rock wool exceeded 100 mm, increasing its thickness could significantly improve the fire resistance limit of the walls; raising the thickness and layers of the cladding panels covering fire surface could also improve the fire resistance greatly; the axial compression ratio had a notable impact on the fire endurance; the distance between keels and the number of rows of openings had low impact. According to the above analytic results, the fire-resistant limit optimization design method was proposed, which could provide support for fire prevention design of prefabricated box-plate steel structures.
- prefabricated box-plate steel structure /
- combined wall /
- fire endurance limit /
- fire resistant optimization design

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参考文献(15)

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