Behavior of Q690 high-strength steel columns: Part 2: Parametric study and design recommendations

Li, Tian Ji; Liu, Si Wei; Li, Guo Qiang; Chan, Siu Lai; Wang, Yan Bo

doi:10.1016/j.jcsr.2016.03.027

Cited by 41 publications

(15 citation statements)

References 14 publications

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“…A brief review of the previous experimental and numerical studies of S690 high strength steel welded I-section structural members is provided herein. Rasmussen and Hancock [4] performed stub column tests on S690 welded Isections to investigate their local buckling responses and compression resistances, while the flexural buckling behaviour and strengths of S690 welded I-section long columns were experimentally and numerically studied in [5][6][7][8][9]. Ma et al [10,11] carried out a testing and numerical simulation programme to examine the global stability of S690 welded I-section beam-columns subject to combined compression and bending.…”

Section: Introductionmentioning

confidence: 99%

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Sun

Liang

Zhao

2019

Journal of Constructional Steel Research

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Section: Introductionmentioning

confidence: 99%

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Sun

Liang

Zhao

2019

Journal of Constructional Steel Research

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“…The obtained membrane residual stresses and bending residual stresses on the outer surface of the sections are presented in Figs. [13][14][15][16]. For these sections made with folded plates using press-braking, large tensile bending residual stresses were obtained on the outer surface at the corners which experienced large plastic deformations during fabrication and their magnitudes were much larger than those of the bending The magnitude and distribution of the membrane and bending residual stresses in the CF1-75×6 and CF2-75×6 sections are also compared with the residual stresses of W-75×6 section to reveal the influence of fabrication process on the residual stresses.…”

Section: Measurement Results and Discussionmentioning

confidence: 99%

“…High strength steel (HSS) tubular members have been increasingly used in structural applications due to their combined advantages of strong buckling resistance, high strength-to-weight ratio, environmental efficiency, aesthetic appearance, and cost efficiency. Extensive experimental and numerical research studies focusing on HSS tubular structures with square, rectangular and circular sections have been conducted to determine the material properties and residual stresses of the hollow sections [1][2][3][4][5][6] and to investigate the cross-sectional and member behaviour under quasi-static compression, bending and combined loadings [1,[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. In recent years, octagonal steel tubular members have also been used in civil structural applications such as transmission line structures, 36 towers and lattice structures [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Material properties and residual stresses of octagonal high strength steel hollow sections

Fang

Chan

Young

2018

Journal of Constructional Steel Research

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This paper presents an experimental investigation to quantify the variation of material properties and residual stresses in the octagonal high strength steel hollow sections from different fabrication routes involving welding or combinations of welding and press-braking. Tensile coupon tests were conducted on the specimens extracted from different locations of the hollow sections with different fabrication routes and static mechanical properties and stress-strain relationship for the specimens were measured. The influence of welding on the material properties was found to be insignificant while strength enhancement was observed for the material at corners formed by press-braking. A stress-strain curve model was proposed for the material across octagonal high strength steel hollow sections. The magnitudes and distributions of longitudinal residual stresses of the octagonal high strength steel hollow sections with different fabrication routes were also measured using the sectioning method and were also found to be dependent on the fabrication route. Based on the measured residual stress results, residual stress models were developed for the hollow sections from different fabrication routes. The obtained variation of material properties and longitudinal residual stresses can be employed to accurately analyse the performance of octagonal high strength steel hollow section structural members for efficient structural designs.

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“…e reason and limit value of derrick inclination are determined by experiment and finite element modeling analysis. e inclination of derrick, support settlement, and corrosion of support beam are measured by experiment, and the bearing capacity is analyzed by considering defects in the finite element model [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis and Experimental Study on the Working State of Sinking Headframe in the Large Underground Shaft

Qixiang

Zhao

Wen

et al. 2021

Advances in Civil Engineering

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Based on the newly developed sinking headframe for the deep and large shaft, the finite element model of the full-scale headframe was established by using SAP2000. Through the calculation, the theoretical stress of the headframe at sinking depths of 40 m, 143 m, 223 m, 518 m, 762 m, 1000 m, 1250 m, and 1503 m was obtained and then compared with the field measured stress. The results show that with the increase of shaft sinking depth, the theoretical stress of finite element simulation and the field measured stress of each member of the sheave wheel platform and the headframe increase linearly, and for the maximum member stress in the upper, middle, and lower layers of the headframe, the numerical simulation value is greater than the field measured value and less than the designed steel strength. In other words, under normal working conditions, headframe members are in the elastic stress stage and meet the design requirements, and instability failure of headframe members will not occur. The end-restraint mode of the supporting bars has a great influence on the force of the top member. The reasonable selection of the restraint mode in the simulation is the key to the accuracy of the calculation results. The simulation results well reflect the actual stress of the headframe and provide a reliable guarantee for the follow-up work of the project.

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Behavior of Q690 high-strength steel columns: Part 2: Parametric study and design recommendations

Cited by 41 publications

References 14 publications

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns

Material properties and residual stresses of octagonal high strength steel hollow sections

Simulation Analysis and Experimental Study on the Working State of Sinking Headframe in the Large Underground Shaft

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