Seismic Behavior of Welded Beam-to-Column Joints of High-Strength Steel-Moment Frame with Replaceable Damage-Control Fuses

Lin, Xuchuan; Chen, Yian; Yan, Jia-Bao; Hu, Yangyang

doi:10.1061/(asce)st.1943-541x.0002691

Cited by 33 publications

(5 citation statements)

References 15 publications

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“…As Lin et al [25] suggested a maximum slenderness of 35, it has been established a "rule of thumb" for the minimum plate thickness as e > S1/10.…”

Section: Analytical Studymentioning

confidence: 99%

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Cyclic Behavior of the Column-Tree Moment Connection with Weakened Plates: A Numerical Approach

Matthews,

Núñez

2023

Buildings

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The use of column-tree connections is common in controlled shop environments due to their cost-effectiveness in achieving ductile welds. Field bolts are also easy to install and inspect. However, there is currently no prequalification available for these connections, their performance is not fully understood, and the cost of aftermath repairs is still a major concern for owners. In this research, analytical and numerical studies were performed to assess the cyclic behavior considering the effects of the bolted splice location, bolt slippage, and splice plate thickness. Fourteen numerical models using the finite element method in ANSYS software were analyzed to evaluate the nonlinear behavior of moment connection configurations in terms of the strength, stiffness, ductility, energy dissipation, and overall cyclic response. The results showed that appropriately proportioned bolted splice connections can meet the requirements for prequalified moment connections. The models complied with the criteria established in AISC 358 and achieved flexural resistance that was higher than 80% of the beam plastic moment at 4% of the interstory drift ratio. The weakened plates concentrated the inelastic action, which allowed us to prevent the brittle behavior and damage to the column, welding, and other components of the moment connection. Complex geometries or specially fabricated parts were not required, providing a cost-effective way to control seismic-related damage. Also, required repairs are based on the replacement of standard parts, reducing operational detentions in facilities. Finally, the moment connection studied is classified as partially restrained (PR) according to the requirements established in AISC 360.

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“…As Lin et al [25] suggested a maximum slenderness of 35, it has been established a "rule of thumb" for the minimum plate thickness as e > S1/10.…”

Section: Analytical Studymentioning

confidence: 99%

“…In a study conducted by Lin et al [25], it was discovered that the design strength can be represented by Md = FCR × My, where FCR is a parameter that ranges from 0.85 to 0.95 to account for a decreased required strength at a connection situated away from the column. In this equation, My = S x × Fy is used in place of Mp = Z x × Fy.…”

Section: Introductionmentioning

confidence: 99%

Cyclic Behavior of the Column-Tree Moment Connection with Weakened Plates: A Numerical Approach

Matthews,

Núñez

2023

Buildings

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“…Moreover, the behaviour of frames with replaceable connection parts has been further studied by Wang et al [194], and by Lin et al [195], who proposed a frame-and-fuse system with the ability to withstand significant earthquake actions without noticeable damage and only require the fuse replacement for very rare earthquake motions and by Garoosi et al who assessed the interaction of Reduced Beam Sections and replaceable connections [196].…”

Section: Replaceable Connectionsmentioning

confidence: 99%

“…Concerning the design of fuses, the work of Wang et al [200] may assist practitioners with their proposed approach to assess frames behaviour, as well as Lin et al's conclusions on fuses' shape and thickness influence on its performance [195] provides relevant information for design purposes. Moreover, European Commission (RFCS) funded research has had a significant impact on the development of fuse solutions.…”

Section: Replaceable Connectionsmentioning

confidence: 99%

Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

et al. 2022

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The importance of connections in steel structures is paramount, not only because it greatly influences the cost of construction and provides room for innovations, but also due to the connections’ impact on global structural behaviour. Therefore, research into innovative connections for seismic applications and related design criteria has significantly grown in recent years. However, it has been pursued mostly on local—connection or frame—levels, leaving the system analysis and code compliance levels with a meagre investigation. Moreover, less than 1% of published papers concerning steel connections and earthquake engineering are review articles. To overcome this gap, this systematic review of more than 240 references, including scientific contributions and design codes in the field aimed to cover both recent research and current shortcomings in practice and regulations. It has been found that European design rules updated to a fully performance-based design philosophy is imminent and is deemed to bring pre-qualified joints and increased complexity. Design rules have been systematized, and current hindrances have been highlighted. A deeper look into research needs and trends showed that investigations in connections for concentrically X braced frames are still a necessity, while developments in self-centring and replaceable connections as well as in simple solutions for increasing damping are expected to modify how joints are designed, as soon as semi-rigid and partial strength connections are more easily allowed by design codes.

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“…Their tests showed more stable hysteretic behavior compared to traditional joints. Lin et al [7] developed a high-strength steel moment-resisting frame structure with replaceable fuses, effectively controlling damage during seismic events. Yan et al [8] investigated the seismic behavior of HS steel beam-column joints with and without fuses via testing and finite element analysis.…”

Section: Introductionmentioning

confidence: 99%

Seismic Behavior of Demountable Reinforced Concrete (RC) Beam-to-Column Joints with Damage-Control Fuses

Li,

Fan,

Jiang

et al. 2023

Buildings

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In this paper, a new type of assembled RC beam–column joint with a beam-end steel cover-plate connection is proposed to achieve seismic toughness and damage control of the joint. Energy-dissipation plates with different structural forms are proposed, and a series of seismic performance indexes of the joints are calculated and analyzed by using the finite element method. The energy-dissipation plate with an arc notch can reach the yield condition faster, and the ultimate bearing capacity of the joint reaches the maximum. The bending design of energy-dissipation plates is carried out by calculating the demand bending moment, and energy-dissipation plates of different structural forms are simulated and verified. The results show that the proposed design formula can ensure that the bending moment at the beam end still maintains elastic deformation when the energy-dissipation plate yields. The important parameters affecting the bending moment of the weakened part in the middle of the energy-dissipation plate are analyzed. Finally, this paper also analyzes the important parameters affecting the seismic performance of the joints. The results show that the seismic performance of the newly assembled RC beam–column joints proposed in this paper is better than that of cast-in-place joints. Increasing the longitudinal reinforcement ratio appropriately can greatly improve the ultimate bearing capacity and ductility of the joints. Increasing the thickness of the energy-dissipation plate, increasing the strength of the energy-dissipation plate, increasing the axial compression ratio of the column, increasing the strength of the concrete, and increasing the strength of the shear web can improve the ultimate bearing capacity of the joints but also reduce their ductility. Under different axial compression ratios, the strain in the core area of the joints is low, and the compressive damage of the concrete is zero, which verifies the effectiveness of the damage-control design of the proposed model.

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Seismic Behavior of Welded Beam-to-Column Joints of High-Strength Steel-Moment Frame with Replaceable Damage-Control Fuses

Cited by 33 publications

References 15 publications

Cyclic Behavior of the Column-Tree Moment Connection with Weakened Plates: A Numerical Approach

Cyclic Behavior of the Column-Tree Moment Connection with Weakened Plates: A Numerical Approach

Seismic Design of Bolted Connections in Steel Structures—A Critical Assessment of Practice and Research

Seismic Behavior of Demountable Reinforced Concrete (RC) Beam-to-Column Joints with Damage-Control Fuses

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