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Study on mechanical behavior of panel zone of complex joints between concrete filled steel tubular column and steel truss beam
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Qiang HAN1, Jiachang WANG1, Xuan ZHANG2, Qiang ZHANG1
Earthquake Engineering and Engineering Dynamics | 2025, 45(2) : 64 - 73
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Earthquake Engineering and Engineering Dynamics | 2025, 45(2): 64-73
Study on mechanical behavior of panel zone of complex joints between concrete filled steel tubular column and steel truss beam
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Qiang HAN1, Jiachang WANG1, Xuan ZHANG2, Qiang ZHANG1
Affiliations
  • 1.State Key Laboratory of Bridge Engineering Safety and Resilience, Beijing University of Technology, Beijing 100124, China
  • 2.The First Construction Engineering Company Ltd. of China Construction Second Engineering Bureau, Beijing 100023, China
Published: 2025-04-24 doi: 10.13197/j.eeed.2025.0206
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To study the mechanical behavior of panel zone of complex joints between concrete filled steel tubular (CFST) column and steel truss beam, this paper generates a three-dimensional model based on experimental results using ABAQUS and validates the validity of the model. Subsequently, several sets of models of “strong member and weak joint” models are designed on the basis of the test specimen through structural measures. The influence of the steel truss beam inclination angle, the axial pressure ratio of CFST column and the width-to-thickness ratio of steel tube is studied. The results indicate that the failure mode of panel zone in CFST column-steel truss complex joint is the failure of panel zone within the range of bottom chord, accompanied by the failure of truss girder end. The influence of steel truss beam inclination angle on mechanical behavior and failure mode of panel zone is small. When the axial compression ratio is large, the shear capacity and ductility coefficient of the panel zone decrease obviously. Therefore, it is suggested that axial compression ratio of CFST column should not exceed 0.3. Width-to-thickness ratio of steel tube is a sensitive parameter, and the shear capacity, initial stiffness, and ductility coefficient of panel zone change significantly with the decrease of width-to-thickness ratio of steel tube.

complex joint between CFST column and steel truss beam  /  finite element analysis  /  shear capacity  /  initial stiffness  /  axial compression ratio of structural column  /  width-to-thickness ratio of steel tube
Qiang HAN, Jiachang WANG, Xuan ZHANG, Qiang ZHANG. Study on mechanical behavior of panel zone of complex joints between concrete filled steel tubular column and steel truss beam[J]. Earthquake Engineering and Engineering Dynamics, 2025 , 45 (2) : 64 -73 . DOI: 10.13197/j.eeed.2025.0206
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Year 2025 volume 45 Issue 2
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Article Info
doi: 10.13197/j.eeed.2025.0206
  • Receive Date：2024-04-25
  • Online Date：2026-03-20
  • Published：2025-04-24
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History
  • Received：2024-04-25
  • Revised：2024-05-16
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Affiliations
    1.State Key Laboratory of Bridge Engineering Safety and Resilience, Beijing University of Technology, Beijing 100124, China
    2.The First Construction Engineering Company Ltd. of China Construction Second Engineering Bureau, Beijing 100023, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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