Seismic performance of high-strength-steel frame equipped with sacrificial beams of non-compact sections in energy dissipation bays

Chen, Yiyi; Ke, Ke

doi:10.1016/j.tws.2019.02.035

Cited by 34 publications

(8 citation statements)

References 35 publications

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“…It has been confirmed that an effective combination of HSSs and normal steels (e.g. mild carbon steel) in a structure contributes to the formation of desirable damage-control behaviour [15][16][17][18]20], with inelastic actions that are easily limited to pre-selected members and components for a wide deformation spectrum. For instance, Dubina et al [11] examined the feasibility of eccentrically-braced HSS frames equipped with ductile shear links, and an advanced damage evolution model was confirmed.…”

Section: Introductionmentioning

confidence: 95%

“…Owing to the higher strengths of these materials, the effective application of HSSs can reduce membersection sizes in a steel structure, and hence enable the production of economical and sustainable structures. Although HSS is generally characterised by finite ductility and insignificant post-yield strain hardening, recent research advances in the hysteretic behaviour of HSS materials [3][4][5][6], connections between members [7][8][9] and structural systems [10][11][12][13][14][15][16][17][18][19] have shed considerable light on the promise of practical implementations of HSS materials in seismic regions. It has been confirmed that an effective combination of HSSs and normal steels (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Dubina et al [11] examined the feasibility of eccentrically-braced HSS frames equipped with ductile shear links, and an advanced damage evolution model was confirmed. Alternatively, Ke and colleagues explored the effectiveness of energy dissipation bays [15][16][17][18] for enhancing the seismic resistance of an HSS frame. The concept of an HSS frame equipped with energy-dissipation bays (HSSF-EDBs), is illustrated in figure 1.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High-strength steel frames with SMA connections in self-centring energy-dissipation bays: insights and a multimodal nonlinear static procedure

Yam

Zhang

et al. 2020

Smart Mater. Struct.

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This study explores the effectiveness of shape-memory-alloy (SMA)-based self-centring energy-dissipation bays (SCEDBs) for enhancing the seismic performance of high-strength-steel (HSS) frames. The work commences with the development of an ensemble of prototype HSS frames equipped with SCEDBs, known as HSSF-SCEDB structures. The prototype systems are examined using cyclic-pushover and nonlinear-response-history analyses (NL-RHAs). According to the analysis database, it is found that the cyclic-pushover responses generally show a typical flag shape over a wide deformation range and that the post-earthquake residual deformations are below 0.5%, even following maximum interstorey drifts beyond the codified deformation threshold (i.e. 2%). To offer a practical tool to engineers for damage-control behaviour evaluation and seismic demand estimation, we develop a multimodal nonlinear static procedure based on a modified energy-balance concept. Conventional procedures relating to the fundamental vibration mode are also revisited. The results indicate that a medium-rise HSSF-SCEDB may be appreciably influenced by higher vibration modes. The difference between the average maximum interstorey drifts calculated by NL-RHAs and those obtained using the proposed procedure for an ensemble of earthquake motions is generally below 5%, and the adequacy of the proposed method is confirmed.

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Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-strength steel frames with SMA connections in self-centring energy-dissipation bays: insights and a multimodal nonlinear static procedure

Yam

Zhang

et al. 2020

Smart Mater. Struct.

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“…During the applied seismic loads, by shear deformations, the link elements dissipated the energy and no plastic deformation occurred in the HSS members. Further studies on moment resisting frames using HSS frames with sacrificial beams of mild steel material was conducted to investigate and demonstrate the potential application of HSS material for seismic applications [11].…”

Section: Introductionmentioning

confidence: 99%

Lateral Cyclic Performance of Hybrid Fabricated Beam‐Columns

Javidan¹

2021

ce papers

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In this paper, a high‐capacity fabricated hollow section is proposed as a lightweight replacement for concrete‐filled composite members which are commonly used as beam‐columns in seismic zones. The lateral cyclic performance of the fabricated hollow beam‐column comprising of mild steel plates (grade 250) and high strength steel (HSS) tubes (grade 750) is investigated. A finite element model is developed and validated against available experimental data. To incorporate the cyclic hardening and softening of both steel materials, a combined plasticity model obtained from low‐cycle material tests is incorporated in the finite element model. A comprehensive sensitivity analysis is undertaken to propose an optimum slenderness design for the thin‐walled steel elements with ductile failure. While the high strength steel tube elements can significantly increase the axial and lateral capacity of the hybrid section, the cyclic failure mechanism is governed by mild steel plate elements, rather than a sudden failure in the high strength steel tubes.

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“…High strength steel (HSS) with a nominal yield strength equal to or over 460 MPa [14][15][16][17] has been attracting increasing attention from the academia and engineering community in recent years. Research studies on the mechanical properties of HSS [18][19][20], HSS connections/components [21][22][23][24][25] and HSS structural systems [26][27][28][29] all shed insightful lights on the promise of HSS in steel construction. In engineering practice, the use of HSS may contribute to reducing the size and weight of structures and offer significant savings in delivery cost and material/energy consumption during steel production.…”

Section: Introductionmentioning

confidence: 99%