Research on Lateral Resistance of Concrete-Filled Steel Tubular Four-Limb Latticed Columns with Circumferential Void Defects

Zhao Xuan; Li Zhenyu; Hu Chaohui; Li Xian; Nie Ying; Liu Jun

doi:10.13206/j.gjgS24052202

Volume 40 Issue 4

Apr. 2025

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Article Navigation > STEEL CONSTRUCTION(Chinese & English) > 2025 > 40(4): 32-41

Zhao Xuan, Li Zhenyu, Hu Chaohui, Li Xian, Nie Ying, Liu Jun. Research on Lateral Resistance of Concrete-Filled Steel Tubular Four-Limb Latticed Columns with Circumferential Void Defects[J]. STEEL CONSTRUCTION(Chinese & English), 2025, 40(4): 32-41. doi: 10.13206/j.gjgS24052202

Citation:

Zhao Xuan, Li Zhenyu, Hu Chaohui, Li Xian, Nie Ying, Liu Jun. Research on Lateral Resistance of Concrete-Filled Steel Tubular Four-Limb Latticed Columns with Circumferential Void Defects[J]. STEEL CONSTRUCTION(Chinese & English), 2025, 40(4): 32-41. doi: 10.13206/j.gjgS24052202

Citation:

Zhao Xuan, Li Zhenyu, Hu Chaohui, Li Xian, Nie Ying, Liu Jun. Research on Lateral Resistance of Concrete-Filled Steel Tubular Four-Limb Latticed Columns with Circumferential Void Defects[J]. STEEL CONSTRUCTION(Chinese & English), 2025, 40(4): 32-41. doi: 10.13206/j.gjgS24052202

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Research on Lateral Resistance of Concrete-Filled Steel Tubular Four-Limb Latticed Columns with Circumferential Void Defects

doi: 10.13206/j.gjgS24052202

Zhao Xuan^1,2,
Li Zhenyu²,
Hu Chaohui^1,2,
Li Xian^{2
,
,},
Nie Ying¹,
Liu Jun^3,4

1. MCC CCID Engineering Technology Co., Ltd., Chongqing 400013, China;
2. School of Civil Engineering, China University of Mining and Technology, Xuzhou 221000, China;
3. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
4. Xi'an University of Architecture Engineering Technology Co., Ltd., Xi'an 710055, China

Received Date: 2024-05-22
Available Online: 2025-06-07
Publish Date: 2025-04-25

Abstract

Abstract

Because of the increase of crane tonnage and operation frequency， the circumferential void defects of concrete-filled steel tubular（CFST） four-limb latticed columns in heavy industrial plants will occur. In order to study the lateral resistance of CFST four-limb latticed columns with circumferential void defects， the effects of different circumferential void ratios， column top’s void heights， numbers of columns with void defects， and axial compression ratios on the lateral bearing capacity and stiffness of the four-limb columns with circumferential void defects were studied by using the finite element analysis software ABAQUS. The results showed that the presence of circumferential void defects reduced the lateral bearing capacity and stiffness of CFST four-limb latticed columns. When the circumferential void ratio was 1%， the lateral bearing capacity and stiffness of the latticed columns decreased by 3.84% and 7.3%， respectively. The lateral bearing capacity and stiffness of latticed columns decreased with the increase of circumferential void ratio. The mechanical properties of CFST four-limb latticed columns were degraded more significantly under the combined action of circumferential voids and column top voids. When the circumferential void ratio was 0.1% and the column top's void height was 20 mm， the lateral bearing capacity and stiffness of the latticed columns decreased by 20.49% and 29.49%， respectively.With the increase of column limbs and axial compression ratio， circumferential void defects had a greater effect on the degradation of mechanical properties of CFST latticed columns. When the circumferential void ratio was 0.1% and the number of limbs was 4， the lateral bearing capacity and stiffness of the latticed columns decreased by 12.38% and 29.22%， respectively. When the circumferential void ratio was 0.1% and the axial compression ratio was 0.33， the lateral bearing capacity and stiffness of the latticed columnd decreased by 31.75% and 24.71%， respectively.
- concrete-filled steel tube,
- four-limb latticed columns,
- void defects,
- lateral resistanc

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References(22)

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