STUDY ON MECHANICAL PROPERTIES OF PERFORATED HIGH-STRENGTH STEEL PLATES

ZHANG Hailong; ZHAO Xuehang; LI Haifeng

doi:10.13204/j.gyjzG20022712

Volume 51 Issue 1

Apr. 2021

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ZHANG Hailong, ZHAO Xuehang, LI Haifeng. STUDY ON MECHANICAL PROPERTIES OF PERFORATED HIGH-STRENGTH STEEL PLATES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 157-162,199. doi: 10.13204/j.gyjzG20022712

Citation:

ZHANG Hailong, ZHAO Xuehang, LI Haifeng. STUDY ON MECHANICAL PROPERTIES OF PERFORATED HIGH-STRENGTH STEEL PLATES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 157-162,199. doi: 10.13204/j.gyjzG20022712

ZHANG Hailong, ZHAO Xuehang, LI Haifeng. STUDY ON MECHANICAL PROPERTIES OF PERFORATED HIGH-STRENGTH STEEL PLATES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 157-162,199. doi: 10.13204/j.gyjzG20022712

Citation:

ZHANG Hailong, ZHAO Xuehang, LI Haifeng. STUDY ON MECHANICAL PROPERTIES OF PERFORATED HIGH-STRENGTH STEEL PLATES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(1): 157-162,199. doi: 10.13204/j.gyjzG20022712

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STUDY ON MECHANICAL PROPERTIES OF PERFORATED HIGH-STRENGTH STEEL PLATES

doi: 10.13204/j.gyjzG20022712

1. CCCC First Highway Consultants Co., Ltd., Xi'an 710075, China;
2. College of Civil Engineering, Huaqiao University, Xiamen 361021, China;
3. Key Laboratory for Intelligent Infrastructure and Monitoring of Fujian Province (Huaqiao University), Xiamen 361021, China

Received Date: 2020-05-20
Available Online: 2021-04-30

Abstract

Abstract

Taking Q460 and Q600 high-strength steel as research objects, the mechanical properties of 14 perforated high-strength steel specimens under uniaxial tension were tested. The damage characteristics, stress-strain hysteresis curves and corresponding energy dissipation of specimens were analyzed in detail. The results showed that the fracture of non-perforated specimens accompanied apparent necking; as stress concentration, the opening positions were the weakest parts destroyed for specimens. Q600 steel reflected the advantage of more higher strength, energy dissipation capability and ductility than that of Q460 steel. Increasing the thickness could improve the ultimate strength, plastic deformation capacity and energy dissipation capacity of the steels. The mechanical properties would be reduced to a certain extent because of perforation. The influence of the openings on energy dissipation capability was obvious. Comparing with the specinens with openings perpendicaular to the tensile direction, the specimens with openings along the tensile direction were of better capability of energy dissipation.
- high-strength steel,
- perforated high-strength steel plate,
- mechanical property,
- material property test,
- energy dissipation

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References(15)

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