Experimental study on the fire performance of steel beam-column t-stub joints

被引：0

作者：

Shu G.-P. ^{[1
]}

Du E.-F. ^{[1
]}

Zhang X.-X. ^{[1
]}

Yang Z.-X. ^{[2
]}

Gu R.-Y. ^{[3
]}

Fan S.-G. ^{[1
]}

机构：

[1] Key Laboratory of C & PC Structures, Ministry of Education, Southeast University, Nanjing

[2] Jiaoke Transport Consultants Ltd, Beijing

[3] Nanjing Yangtze River Urban Architectural Design CO., LTD, Nanjing

来源：

Gongcheng Lixue/Engineering Mechanics | 2016年 / 33卷 / 07期

关键词：

Displacement; Fire experiment; Joints; Semi-rigid; T-stub; Temperature;

D O I：

10.6052/j.issn.1000-4750.2014.11.0930

中图分类号：

学科分类号：

摘要：

To understand their fire resistance and failure mode, an experimental study was performed on four full-scale cross steel beam-column T-stub joints by using a vertical furnace. The load was kept constant during the fire. The key parameters investigated include the thickness of the T-stub, the diameter of the bolts, and the floor on beams. The temperature distribution and the deformation of the T-stub joints in fire were measured through the test. The deformation-curves of the beams are then discussed. The results show that the failure modes of the T-stub joints in fire depend on the relative bearing capacity between the T-stub and bolts, and the damage occurs in the weaker of the two. The floor can greatly enhance the fire-resistance of the T-stub joints, while the thickness of the T-stub and the diameter of the bolts have little influence on the fire performance of the joints. The fire-resistance and stiffness of T-stub joints decrease sharply after 500℃~650℃. © 2016, Engineering Mechanics Press. All right reserved.

引用

页码：136 / 143

页数：7

共 19 条

[1] CECS200: 2006, Technical code for fire safety of steel structure in buildings, (2006)
[2] Jabria K.S., Burgess I.W., Lennon T., Et al., Moment-rotation-temperature curves for semi-rigid joints, Journal of Constructional Steel Research, 61, 3, pp. 281-303, (2005)
[3] Silva D.L.S., Santiago A., Real P.V., Et al., Behaviour of steel joints under fire loading, Steel and Composite Structures, 5, 4, pp. 485-513, (2005)
[4] Mao C.J., Chiou Y.J., Hsiao P.A., Et al., Fire response of steel semi-rigid beam-column moment connections, Journal of Constructional Steel Research, 65, 6, pp. 1290-1303, (2009)
[5] Yahyai M., Daryan A.S., The study of welded semi-rigid connections in fire, Structural Design of Tall and Special Buildings, 22, 10, pp. 783-801, (2013)
[6] Hu G., Engelhardt M., Studies on the behavior of steel single plate connections in fire, Structural Engineering International: Journal of the International Association for Bridge and Structural Engineering (IABSE), 22, 4, pp. 462-469, (2012)
[7] Shuyuan L., Zhaohui H., Mizi F., Analysis of end-plate connections at elevated temperatures, Steel and Composite Structures, 15, 1, pp. 81-101, (2013)
[8] Lou G., Behavior and design of extended endplate moment connections with high-strength bolts in fire, (2005)
[9] Wang W., Dong Y., Li G., Experimental and analytical studies on extended end-plate connection in fire, Journal of Harbin Institute of Technology, 38, 12, pp. 2125-2128, (2006)
[10] Hao S., Dong J., Ye J., Effect of stiffener on behavior of beam to column extended end-plate connection in fire, Engineering Mechanics, 27, 8, pp. 152-163, (2010)

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