INFLUENCE OF WELDING STRESS ON MECHANICAL PERFORMANCES OF DOUBLE-LAYER SHOULDER BEAMS WITH MULTI-LIMB MIDDLE COLUMNS OF CONCRETE-FILLED STEEL TUBES AND TEST DEGSIN FOR THE BEARING PERFORMANCES

LAN Tao; LI Ran; MEN Jinjie; ZHANG Liang; LIAO Fanzhi

doi:10.13204/j.gyjzG20082303

Volume 51 Issue 9

Jan. 2022

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LAN Tao, LI Ran, MEN Jinjie, ZHANG Liang, LIAO Fanzhi. INFLUENCE OF WELDING STRESS ON MECHANICAL PERFORMANCES OF DOUBLE-LAYER SHOULDER BEAMS WITH MULTI-LIMB MIDDLE COLUMNS OF CONCRETE-FILLED STEEL TUBES AND TEST DEGSIN FOR THE BEARING PERFORMANCES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 41-46,165. doi: 10.13204/j.gyjzG20082303

Citation:

LAN Tao, LI Ran, MEN Jinjie, ZHANG Liang, LIAO Fanzhi. INFLUENCE OF WELDING STRESS ON MECHANICAL PERFORMANCES OF DOUBLE-LAYER SHOULDER BEAMS WITH MULTI-LIMB MIDDLE COLUMNS OF CONCRETE-FILLED STEEL TUBES AND TEST DEGSIN FOR THE BEARING PERFORMANCES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 41-46,165. doi: 10.13204/j.gyjzG20082303

Citation:

LAN Tao, LI Ran, MEN Jinjie, ZHANG Liang, LIAO Fanzhi. INFLUENCE OF WELDING STRESS ON MECHANICAL PERFORMANCES OF DOUBLE-LAYER SHOULDER BEAMS WITH MULTI-LIMB MIDDLE COLUMNS OF CONCRETE-FILLED STEEL TUBES AND TEST DEGSIN FOR THE BEARING PERFORMANCES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(9): 41-46,165. doi: 10.13204/j.gyjzG20082303

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INFLUENCE OF WELDING STRESS ON MECHANICAL PERFORMANCES OF DOUBLE-LAYER SHOULDER BEAMS WITH MULTI-LIMB MIDDLE COLUMNS OF CONCRETE-FILLED STEEL TUBES AND TEST DEGSIN FOR THE BEARING PERFORMANCES

doi: 10.13204/j.gyjzG20082303

LAN Tao^1,2,
LI Ran²,
MEN Jinjie^{1
,
,},
ZHANG Liang¹,
LIAO Fanzhi¹

1. School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China;
2. CSIC International Engineering Co., Ltd., Beijing 100021, China

Received Date: 2020-08-23
Available Online: 2022-01-11

Abstract

Abstract

In order to study the mechanical properties of double-layer shoulder beams with multi-limbe middle columns of concrete-filled steel tubes (CFST) subjected to braking loads,six specimens of double-layer shoulder beams with multi-limb middle columns of CFST were designed in combination with practical projects.Considering the influence of welding on the mechanical properties of specimens, the intersection of multiple welds was selected for finite element analysis.The results showed that the temperature and stress within 4 cm from the multi-weld junction changed significantly, and the deformation after welding was large, which had a great impact on the mechanical properties of specimens. Therefore, the secondary weld bead should be disconnected in the process of welding of specimens, and the minimum distance between the secondary weld bead and the main weld bead should be no less than 4 cm.At the same time, the fabrication method of shoulder beam specimens was analyzed in detail to minimize the influence of specimen fabrication on its mechanical properties.
- double-layer shoulder beam of concrete-filled steel tube,
- welding,
- experiment,
- finite element analysis

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References(18)

References

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