The Art of Application of High-Strength Steel Structures for Buildings in Seismic Zones

Li, Guoqiang; Wang, Yan‐Bo; Chen, Suwen

doi:10.18057/ijasc.2015.11.4.6

Cited by 13 publications

(8 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The utilisation of high-strength structural steel (HSSS) in engineering structures has been increasing due to its many advantages [6]. The 690 MPa grade HSSS, which has been developed in different countries [7][8][9][10], has been used in buildings, bridges, and towers [11][12] as well as offshore structures [13][14].…”

Section: Introductionmentioning

confidence: 99%

Tensile Behaviour of TMCP Q690d High-Strength Structural Steel at Strain Rates From 0.00025 to 760 S-1

2022

View full text Add to dashboard Cite

The application of Q690D high-strength structural steel (HSSS) has been increasing in engineering structures. The lack of knowledge of the strain rate behaviour limits the application to the extreme loading conditions such as blast and impact loadings. This paper presents a series of tensile tests on the dynamic tensile behaviour of Q690D HSSS produced through the thermo-mechanical control process (TMCP). The stress-strain relationships of TMCP Q690D in the strain rate range of 0.00025 to 760 s-1 were measured by using the universal and servo-hydraulic high speed testing machines. The experimental results verified the sensitivity to strain rate of TMCP Q690D and the dynamic increase factor (DIF) for yield stress is identical to that of QT (Quenched and Tempered) S690 HSSS. However, TMCP Q690D behaves in a much different way in the strain hardening stage. The commonly-used Cowper-Symonds model was calibrated for the DIFs of yield stress and ultimate tensile strength. The Johnson-Cook (J-C) model was modified and a new rate-dependent constitutive model was proposed. The proposed model was validated successfully to predict the true stress-strain relationship, providing better prediction results than the modified J-C model.

show abstract

Section: Introductionmentioning

confidence: 99%

Tensile Behaviour of TMCP Q690d High-Strength Structural Steel at Strain Rates From 0.00025 to 760 S-1

2022

View full text Add to dashboard Cite

show abstract

“…Due to the differences in mechanical properties, the seismic performance of HSS members may be different from that of the conventional normal strength steel members [11]. European and American specifications for steel structures allow the use of HSS up to steel grades of S700 (700 MPa) and A514 (690 MPa) [12,13].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations of Q690D H-section columns under lateral cyclic loading

Chen

Wang

et al. 2016

Journal of Constructional Steel Research

Self Cite

View full text Add to dashboard Cite

“…3 (CEN, 2009). Previous studies (Li et al, 2015;Ban & Shi, 2018) on the production routes of high strength steels highlighted that the ultimate tensile stress fu is not increased at the same rate as the yield stress fy; as a result, the degree of material strain hardening, which is normally reflected by the ultimate-to-yield tensile stress ratio fu/fy, decreases with high strength steel grade. Fukumoto (1998) and Langenberg (2008) proposed empirical formulae to define the relationship between fu/fy and fy, as given by Equation (2.3) and Equation…”

Section: Materials Response Of Stainless Steelmentioning

confidence: 98%

Behaviour and design of high-performance steel welded I-section structural components

Sun¹

View full text Add to dashboard Cite

High-performance steels, including stainless steels and high strength steels, have been gaining increasing attention in civil engineering, owing to their appealing sustainable and mechanical advantages. The present thesis is focusing on the behaviour and design of high-performance steel welded I-section structural components. A comprehensive testing programme was firstly conducted, which adopted twelve welded I-sections made of two types of high-performance steel (grade EN 1.4420 high-chromium stainless steel and S690 high strength steel). Material testing was carried out to derive the material stress-strain responses of the two adopted high-performance steel grades, and membrane residual stress measurements were performed to determine the membrane residual stress distributions and amplitudes in the studied high-performance steel welded I-sections. At the crosssectional level, a total of 24 axially loaded stub column tests, 20 in-pane four-point bending tests, and 10 eccentrically loaded stub column tests were conducted to investigate the cross-section resistances and local stability of high-performance steel welded I-sections. At the member level, 40 column tests and 10 beam-column tests were performed to study the load-carrying capacities and member instability of highperformance steel welded I-sections. The testing programme was supplemented by a numerical modelling programme, where finite element models were firstly developed and validated against the test results and then employed to perform a series of numerical parametric studies to generate additional numerical data over a wide range of cross-section dimensions, member lengths and loading combinations. The obtained test and numerical results were used to evaluate (i) the applicability of the current design codes for normal stainless steel members to the new high-chromium stainless steel welded I-section members and (ii) the accuracy of the existing relevant design codes for S690 high strength steel welded I-section members. The evaluation results generally indicated that the current design codes result in inaccurate resistance viii predictions, mainly owing to the lack of due consideration of the specific material characteristics of the two types of high-performance steel. New design methods have also been proposed, which were shown to provide substantially improved design accuracy and consistency over the existing design standards. The reliability of the proposed design methods has been confirmed by means of statistical analyses, demonstrating their suitability for incorporation into future revisions of international design codes for stainless steel and high strength steel structures.

show abstract

The Art of Application of High-Strength Steel Structures for Buildings in Seismic Zones

Cited by 13 publications

References 20 publications

Tensile Behaviour of TMCP Q690d High-Strength Structural Steel at Strain Rates From 0.00025 to 760 S-1

Tensile Behaviour of TMCP Q690d High-Strength Structural Steel at Strain Rates From 0.00025 to 760 S-1

Experimental and numerical investigations of Q690D H-section columns under lateral cyclic loading

Behaviour and design of high-performance steel welded I-section structural components

Contact Info

Product

Resources

About