Ductile Steel Connections for Seismic Resistant Precast Buildings

Crisafulli, Francisco J.; Restrepo, José I.

doi:10.1080/13632460309350463

Cited by 24 publications

(10 citation statements)

References 2 publications

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“…Many scholars have focused on this topic. Crisafulli et al 1 studied the seismic performance of a new type of welded vertical joint structure. The connection of this new type of welded joint was a rectangular steel plate with round holes, and a simplified expression of the shear stiffness, yield strength and ultimate strength of this type of vertical joint has been established.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on fabricated shear wall structure with energy‐dissipating vertical joint

Yu-liang

Cui

Zhanjun

et al. 2020

Structural Concrete

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Based on the design concept of 'strong horizontal joint and weak vertical joint', an energy‐dissipating fabricated shear wall structure system with a steel damper is proposed. The wall limbs were connected using the damper to realize the rapid assembly and improve the seismic performance of the fabricated shear wall structure. Four fabricated shear wall specimens and one cast‐in‐place comparison specimen were prepared, and a low‐cycle repeated load test was carried out under an axial compression ratio of 0.1. Results show that the fabricated shear wall structure features slightly reduced bearing capacity but obviously improved ductility, and the energy dissipation of the damper improves the seismic performance of the structure. The damper can dissipate energy rapidly, reduce the damage degree of the wall limbs and work stably, suggesting its good performance as a connector.

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Section: Introductionmentioning

confidence: 99%

Experimental study on fabricated shear wall structure with energy‐dissipating vertical joint

Yu-liang

Cui

Zhanjun

et al. 2020

Structural Concrete

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“…In 2008, Crisafulli and Restrepo [22] proposed a dry connection method referring to the welded joints for steel structures. The connection method is simple and convenient, however, the application to the concrete structure system needs further study.…”

Section: Introductionmentioning

confidence: 99%

A Demountable Connection for Low-Rise Precast Concrete Structures with DfD for Construction Sustainability-A Preliminary Test under Cyclic Loads

Cai

Xiong

et al. 2019

Sustainability

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As a demountable structure, the structure with design for deconstruction (DfD) is considered as a key contribution on the promotion of current construction sustainability by directly reusing valuable components from old structures. As a preliminary study, this paper investigated the cyclic behavior of bolted joints consisting of three reinforced concrete blocks bolted by steel bolts under axial compressive, focusing on the damage and failure modes, resistance mechanism and stiffness development of the joints. Results showed that the number of steel bolts, the tightening process of the bolts and concrete compressive strength all had a significant effect on the overall performance and capacity of the joints. The failure mode of most of tested joints was considered as fracture of stirrups and steel bolts in the tested joints. According to the investigation of this study, several recommendations on the design of the joints were provided.

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“…In contrast, the dry joints, which are cast into the ends of the element, can fully take the advantages of precast structures. In general, dry joints are made by welding, bolting, post‐tensioning, or doweling together steel plates, steel inserts, or other devices. Due to their characteristics in transferring the actions between the components at discrete points where the steel inserts are connected, this method is widely used in the United States and many other countries.…”

Section: Introductionmentioning

confidence: 99%

Experimental and analytical investigations on new viscoelastic damped joints for seismic mitigation of structures with precast shear walls

Zhang

Gao

et al. 2019

Struct Control Health Monit

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Precast concrete wall has become a crucial part in the architectural industrialization, which is in line with the development trend of the building industry.On the basis of the analysis of relations between the deformation and the energy distribution of the precast concrete walls under major earthquakes, this investigation proposes the idea of a novel viscoelastic damped joint (VDJ) to create the vertical connection between two precast walls. By amplifying the displacements and velocities of the joint, the energy dissipating properties of damping materials can be fully used. The VDJ is suitable for improving the damping efficiency in the stiff shear wall structural systems. Performance tests were performed to study the mechanical properties of the damped joint. And then, a simplified analytical model of the VDJ with different parameters under various deformations and frequencies is presented. The numerical simulation results indicate that the simplified model is capable of capturing the main features of the VDJ. Furthermore, the analytical models on wall to wall connections were set up and incorporated into 2-D numerical models. To better understand the damping performances of the VDJ, three models connected by emulating cast in situ joints, precast hinged joints, and viscoelastic damped joints were prepared by analyzing the time history of the overall structural response. Results show that the VDJs are effective in attenuating seismic response of the precast walls. They worked in the dissipation of approximately 90% of input earthquake energy. The highly efficient damped joints also reduce interstory displacements and upgrade the structural performance of buildings during seismic excitation. KEYWORDS displacement dependence, fatigue performance, frequency dependence, magnification factor, precast shear wall, viscoelastic damped joint (VDJ)

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Ductile Steel Connections for Seismic Resistant Precast Buildings

Cited by 24 publications

References 2 publications

Experimental study on fabricated shear wall structure with energy‐dissipating vertical joint

Experimental study on fabricated shear wall structure with energy‐dissipating vertical joint

A Demountable Connection for Low-Rise Precast Concrete Structures with DfD for Construction Sustainability-A Preliminary Test under Cyclic Loads

Experimental and analytical investigations on new viscoelastic damped joints for seismic mitigation of structures with precast shear walls

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