Mechanical properties of the drum-shaped welded hollow spherical joints of the Beijing Daxing International Airport

doi:10.16511/j.cnki.qhdxxb.2020.25.033

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Abstract

Beijing Daxing International Airport is ranked as one of the Top Seven Wonders of the New World by the Guardian. The airport uses drum-shaped welded hollow spherical joints in the steel roof structure. This study measured the tensile and compressive strengths of a full-scale model of the drum-shaped welded hollow spherical joints and analyzed the joint failure mechanism. A finite element model was then used to study the effects of the drum position, stiffening rib arrangement, drum size, wall thickness, and sphere diameter on the ultimate bearing capacity of the joints after verification of the model against test data. Design methods and calculational formulas were developed based on the full-scale test data and the finite element analyses to predict the axial tension and axial compression loadbearing capacities of drum-shaped welded hollow spherical joints.

Keywords steel structures Beijing Daxing International Airport drum-shaped welded hollow spherical joints full-scale failure tests ultimate bearing capacity

Corresponding Authors: Hongbo LIU E-mail: hbliu@tju.edu.cn

Issue Date: 14 October 2020

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	Zhihua CHEN
	Suolin WEN
	Hongbo LIU
	Xiaodun WANG
	Haotian GAO
	Liucheng WANG
	Shaoning ZHU

Cite this article:

Zhihua CHEN,Suolin WEN,Hongbo LIU, et al. Mechanical properties of the drum-shaped welded hollow spherical joints of the Beijing Daxing International Airport[J]. Journal of Tsinghua University(Science and Technology), 2020, 60(12): 967-976.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2020.25.033 OR http://jst.tsinghuajournals.com/EN/Y2020/V60/I12/967

试件材料力学性能






10.16511/j.cnki.qhdxxb.2020.25.033.T001表 1

试件部位	母材厚度/mm	屈服强度/MPa	抗拉强度/MPa	延伸率/%
焊接球	25	341	459	25
钢管	35	338	466	22

10.16511/j.cnki.qhdxxb.2020.25.033.T002

表 2

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6	HAN Q H , LIU X L . Ultimate bearing capacity of the welded hollow spherical joints in spatial reticulated structures[J]. Engineering Structures, 2004. 26 (1): 73- 82. doi: 10.1016/j.engstruct.2003.08.012
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11	WEN S L , LIU H B , CHEN Z H , et al. Ultimate bearing behavior of H-beam welded hollow spheres under eccentric compression[J]. Engineering Structures, 2020. 212, 110522. doi: 10.1016/j.engstruct.2020.110522
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16	ZHAO Z W , LIU H Q , LIANG B . Bending capacity of corroded welded hollow spherical joints[J]. Thin-Walled Structures, 2018. 127, 523- 539. doi: 10.1016/j.tws.2018.03.007
17	ZHAO Z W , LIU H Q , LIANG B . Assessment of the bending capacity of welded hollow spherical joints with pit corrosion[J]. Thin-Walled Structures, 2018. 131, 274- 285. doi: 10.1016/j.tws.2018.07.010
18	CHEN H Y , LIU H B , CHEN Z H . Compressive strength of corroded special-shaped welded hollow spherical joints based on numerical simulation[J]. Thin-Walled Structures, 2020. 149, 106531. doi: 10.1016/j.tws.2019.106531
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