Fire Resistance Performance of Large Span Steel Portal Frame Structures Reinforced by External Prestressed CFRP Bars

宗钟凌; 蒋德稳; 姚锦文; 宋明志

doi:10.13409/j.cnki.jdpme.2015.03.017

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Fire Resistance Performance of Large Span Steel Portal Frame Structures Reinforced by External Prestressed CFRP Bars

更新时间：2025-12-11

- Fire Resistance Performance of Large Span Steel Portal Frame Structures Reinforced by External Prestressed CFRP Bars
- Vol. 35, Issue 3, Pages: 385-390(2015)
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- DOI：10.13409/j.cnki.jdpme.2015.03.017
  CLC： U392.5
- Published：2015
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[1]宗钟凌,蒋德稳,姚锦文,宋明志.CFRP体外预应力筋加固大空间门式刚架的抗火性能[J].防灾减灾工程学报,2015,35(03):385-390.

宗钟凌, 蒋德稳, 姚锦文, et al. Fire Resistance Performance of Large Span Steel Portal Frame Structures Reinforced by External Prestressed CFRP Bars[J]. 2015, 35(3): 385-390.
[1]宗钟凌,蒋德稳,姚锦文,宋明志.CFRP体外预应力筋加固大空间门式刚架的抗火性能[J].防灾减灾工程学报,2015,35(03):385-390. DOI： 10.13409/j.cnki.jdpme.2015.03.017.

宗钟凌, 蒋德稳, 姚锦文, et al. Fire Resistance Performance of Large Span Steel Portal Frame Structures Reinforced by External Prestressed CFRP Bars[J]. 2015, 35(3): 385-390. DOI： 10.13409/j.cnki.jdpme.2015.03.017.

摘要

CFRP体外预应力筋加固钢结构是一种新型钢结构加固技术

其抗火性能值得研究。基于CFRP筋高温力学性能分析

结合瞬态动力学数值计算方法

建立了体外预应力CFRP筋加固大空间门式刚架抗火分析的数值计算模型

分析了CFRP筋线膨胀系数、预应力设计值及预应力筋截面积对结构抗火的影响。研究结果表明:1CFRP体外预应力筋加固后的大空间门式刚架抗火性能明显提高;2可以不考虑CFRP筋线膨胀系数对结构抗火的影响;3CFRP筋预应力设计值与预应力筋截面积对结构抗火有不同程度的影响。研究结果可供大空间门式刚架加固后的抗火设计、火灾风险评估参考。

Abstract

Steel structure reinforced by the external prestressed CFRP bar is a new technology

the fire-resistance of reinforced steel structure is important.Based on the analysis of high temperature mechanical properties CFRP bar and combined with numerical calculation method for the transient dynamics

the fire resistance analysis numerical model was set up for large spacial steel portal frame with pre-stressed CFRP bar.The fire resistance effected by CFRP tendons and the linear expansion coefficient and the cross-sectional area of CFRP bar was analysed.The results show that:1 the ability to resist fire for large spacial steel portal frame after reinforcement by external prestressed CFRP bar is obviously improved;2the influence of CFRP linear expansion coefficient may be regardless;3 CFRP tendons prestressed design value and the cross-sectional area of prestressed steel structure fire resistance has a different degree of influence.

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references

大空间单跨门式刚架结构抗火性能影响因素的客观权重研究 [J]. 陈素娜,姚斌,易蕾. 防灾减灾工程学报 . 2012(02)

火灾下大跨度弦支穹顶结构的性能分析 [J]. 宗钟凌,何永福,李世歌. 消防科学与技术 . 2012(04)

FRP材料的火灾（高温）性能研究进展 [J]. 高皖扬,陆洲导,胡克旭. 重庆建筑大学学报 . 2008(06)

门式钢刚架结构实用抗火临界温度计算方法 [J]. 黄珏倩,李国强,包盼其,刘克. 建筑钢结构进展 . 2007(06)

FRP加固钢结构的研究进展 [J]. 郑云,叶列平,岳清瑞. 工业建筑 . 2005(08)

实用大空间建筑火灾空气升温经验公式 [J]. 李国强,杜咏. 消防科学与技术 . 2005(03)

现代轻钢结构建筑及其在我国的应用 [J]. 王元清,石永久,陈宏,张勇,李少甫. 建筑结构学报 . 2002(01)

Effect of fire on FRP reinforced concrete members [J] . Mohamed Saafi. Composite Structures . 2002 (1)

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