Numerical Investigations on Seismic Behavior of Segmental Assembly of Concrete Filled Steel Tube Piers with External Replaceable Energy-Dissipating Links

Wang, Chengquan; Yin, Chongli; Zou, Yun; Ping, Boyan; Wu, Xi; Liao, Juan; Sun, Miaomiao

doi:10.3390/ma16031122

Cited by 2 publications

(4 citation statements)

References 17 publications

(16 reference statements)

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“…(SCSF) brace to dissipate seismic energy and reduce the residual displacement of RC double-column bridge bents in the transverse direction. The use of sacrificial and replaceable energy-dissipation devices as structural "fuses" [42] has become an important way to enhance the energy-dissipation capacity of double-column or multi-column piers and achieve damage control and functional recovery. In summary, in existing studies on "fuse" structure bridge piers, the replaceable components are mainly arranged in the transverse direction of bridge structures, improving the transversal seismic resistance of double-or multi-column piers.…”

Section: Design Concept and Failure Modes Of The Innovative Dltw-rscbsmentioning

confidence: 99%

“…Xue et al [41] developed a self-centering slip friction (SCSF) brace to dissipate seismic energy and reduce the residual displacement of RC double-column bridge bents in the transverse direction. The use of sacrificial and replaceable energy-dissipation devices as structural "fuses" [42] has become an important way to enhance the energy-dissipation capacity of double-column or multi-column piers and achieve damage control and functional recovery.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study on an Innovative Double-Limb-Thin-Wall Bridge Pier with Longitudinal Replaceable Connecting Beams

Guo

Nie

et al. 2023

Sustainability

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Replaceable energy dissipation elements can reduce damage to main structures and improve seismic resistance of bridge structures. However, in existing studies, replaceable energy dissipation elements are mainly arranged in the transverse direction of the bridge structure, while little attention is given to the longitudinal direction of the bridge, which also suffers from serious damage under earthquakes. This paper proposes an innovative double-limb-thin-wall (DLTW) bridge pier, which consists of two thin-limb-wall columns in the longitudinal direction of the bridge and replaceable steel connecting beams (RSCBs) between them. Quasistatic tests of the proposed innovative DLTW pier with RSCBs (DLTW-RSCBs), a conventional DLTW pier, and a DLTW pier with RC connecting beams (DLTW-RCCBs) were conducted to investigate the longitudinal seismic performance of the innovative bridge pier. The test results demonstrate that the use of connecting beams (CBs) can improve the lateral bearing capacity and cumulative dissipated energy of the DLTW pier, while the improved amplitudes are more significant for the DLTW-RSCB specimen, about 21.6% and 13.4%, respectively. Moreover, due to the protection of the CBs, the DLTW-RCCBs and DLTW-RSCBs have lower damage and residual drift ratios than the DLTW-NBs before the failure of the CBs. However, the differences between these three piers gradually disappear with the failure of the CBs, and the piers are finally destroyed as a result of the failure modes of buckling and low-cycle fatigue fracture of the longitudinal bars at the column bottom. Moreover, RSCBs can still be rapidly repaired after damage failure of the DLTW-RSCB specimen. Therefore, setting replaceable steel beams between DLTW piers can effectively improve seismic performance and reduce seismic damage and repair costs of DLTW bridge piers under earthquake loading, which are valuable for sustainability during the service stage. The outcomes of this work can serve as a reference for further development of structural forms for the innovated pier.

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Section: Design Concept and Failure Modes Of The Innovative Dltw-rscbsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Study on an Innovative Double-Limb-Thin-Wall Bridge Pier with Longitudinal Replaceable Connecting Beams

Guo

Nie

et al. 2023

Sustainability

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“…Seismic performance research of the new precast shear wall system with angle steel connectors: Seismic behavior under the coupling action of axial pressure and cyclic horizontal load [10] Seismic behavior under the coupling action of axial pressure and cyclic horizontal load [26] Influence of infill walls in shear walls on seismic performance Design suggestions for the new shear wall system with angle steel connectors The content of this paper.…”

Section: Research Novelty: Angle Steel Connections With Energy Dissip...mentioning

confidence: 99%

“…Zhou et al [25] proposed a confined prestressed hollow core wall panel that utilizes connection reinforcement, partial grouting, and sleeve connections to link precast components. Some scholars have proposed increasing the seismic performance and comfort of prefabricated structures by installing structural bracings and energy dissipation devices [26,27]. Previous research [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] has demonstrated that, given reliable design and construction practices, common methods for connecting precast concrete shear wall systems can achieve commendable seismic performance.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Seismic Behavior of a Novel Precast Shear Wall System with Different Infill Wall Constructions

Sun,

Zhang,

Yang

et al. 2023

Materials

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Construction industrialization addresses various challenges in the traditional construction industry, enabling building structures to conserve resources and enhance energy efficiency while reducing emissions. Precast shear walls involve the factory-based production of components, followed by transportation to a construction site for assembly. The method of connecting these components is crucial for precast concrete shear wall systems. Common connection methods include lap-spliced connections, post-tensioned connections, welded connections, bolted connections, and sleeve connections. However, challenges such as construction precision and technology proficiency have limited their application. In response, a novel precast concrete shear wall system utilizing angle steel connectors has been proposed. These angle steel connectors enhance the shear resistance of horizontal joints between precast concrete shear walls and the foundation, providing provisional support for specimen positioning and installation. Presently, the seismic performance of this innovative precast shear wall system under the combined actions of cyclic horizontal loads and axial pressure or tension has been extensively investigated. In practical engineering applications, precast concrete shear wall systems are often accompanied by infill walls. However, there is limited research on the seismic performance of precast concrete shear wall systems with infill walls. To address this gap, this study designed and fabricated two novel precast concrete shear walls with different infill wall constructions. One specimen featured an infill wall composed of a single wall panel, while the other had an infill wall consisting of two panels. Pseudo-static tests were conducted on both specimens under constant axial compression. Subsequently, the seismic performance and force mechanism of the two specimens were compared with the novel precast concrete shear walls without infill walls. The test results demonstrated that the specimen with two infill wall panels exhibited superior overall performance compared to the one with a single continuous infill wall panel. Furthermore, it was observed that, during the loading process, the edge columns of specimens with infill walls provided the majority of the increased load-bearing capacity, while the infill walls made a limited contribution to the overall load-bearing capacity of the structures.

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Numerical Investigations on Seismic Behavior of Segmental Assembly of Concrete Filled Steel Tube Piers with External Replaceable Energy-Dissipating Links

Cited by 2 publications

References 17 publications

Experimental Study on an Innovative Double-Limb-Thin-Wall Bridge Pier with Longitudinal Replaceable Connecting Beams

Experimental Study on an Innovative Double-Limb-Thin-Wall Bridge Pier with Longitudinal Replaceable Connecting Beams

Investigation on Seismic Behavior of a Novel Precast Shear Wall System with Different Infill Wall Constructions

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