The development and experimental test of a new pore-forming grouted precast shear wall connector

Wu, Dongyue; Liang, Shuting; Guo, Zhenxing; Zhu, Xiaoyong; Fu, Qian

doi:10.1007/s12205-015-0071-3

Cited by 18 publications

(10 citation statements)

References 13 publications

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“…It reveals that for elastic segments, interlock mechanism helps to decrease the bond strength of spliced sleeved and also improves the load-carrying capacity of the beam. Thereby proving the sleeve connections as efficient and strong for mainstream connections [29]. A novel mechanism for column to column connections with detachable slabs have been presented by Hu et al [30] and Nzabonimpa and Hong [31] which are able to pair steel plates connected by high-strength bolts for the transfer of axial load and moment.…”

Section: Literature Reviewmentioning

confidence: 99%

An exhaustive research and analysis on seismic performance of prefabricated concrete shear wall structure

Chen¹,

Poongodi²

2020

J. vibroeng.

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In order to accelerate the process of building industrialization, improve the overall stability and construction quality of the building. In this paper, a bolted connection method is designed to study the seismic performance of the composite concrete shear wall specimens with horizontal split joints from the aspects of bearing capacity, ductility, energy dissipation, deformation capacity and failure mode. The test results show that the bolted concrete shear wall is feasible and the connectors can effectively connect the upper and lower precast shear walls to form a whole with certain lateral stiffness. The energy dissipation capacity of the specimens is similar to that of other prefabricated concrete shear wall structures with “self-reduction”. The displacement Angle is greater than 1/120 of the limit value of the displacement Angle between elastic-plastic layers under the action of large earthquakes, and the specimen has good deformation capacity. The energy dissipation capacity of the structure from dynamics perspective reveals that smaller capacity of the specimen by providing energy dissipation factor E= 0.24 and equivalent viscous damping coefficient of 0.038.

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Section: Literature Reviewmentioning

confidence: 99%

An exhaustive research and analysis on seismic performance of prefabricated concrete shear wall structure

Chen¹,

Poongodi²

2020

J. vibroeng.

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“…Especially, the low-rise precast structures, most of which adopt the precast wall panel structure system [2,3,9,10], have a wide application in building construction [2,3]. Meanwhile, previous studies have shown that the structure system adopting precast reinforced concrete shear wall as the main lateral resistance component exhibits a good seismic performance [11][12][13]. At present, many low-rise precast wall panel structure systems have been reported.…”

Section: Introductionmentioning

confidence: 99%

“…e connection type not only affects the manufacture and installation process of precast components but also determines the overall structural performance. Great efforts have been made to investigate the mechanical performance of various connection types of precast wall panel structures, such as types of sleeve [1], emulative [5], hybrid [6], bolted [10], grouted [11,15], and friction connection [16,17]. In the previous research, the dry connection presented great advantages for low-rise precast buildings, in terms of quick erection, maintenance, and reuse [18].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Analysis of the Bolt Connections in a Low‐Rise Precast Wall Panel Structure System

Guo

Zhai

et al. 2019

Advances in Civil Engineering

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This paper develops a novel dry connection utilizing high-strength bolts and introduces the corresponding low-rise precast wall panel structure system. To investigate the seismic performance of the structure system with full bolt connections, monotonic loading tests of the connection joint and cyclic lateral loading tests of three full-scaled precast shear walls are both conducted. Based on the test data, axial and shear mechanical models of the connection are given. Meanwhile, experimental results show that the failure mode of the connection is dominated by anchored rebar ductile rupture, and the precast structure system presents a stable energy dissipation capacity and a good seismic ductility. The numerical model of the precast shear wall is then developed and validated by the cyclic loading test. Also a simplified calculation method to predict the lateral strength of the precast shear wall is proposed. According to the calculation results, the distance between the center of the connection and the edge of the shear wall is suggested to be 150 mm, while the wall thickness is recommended to be 120 mm or 150 mm. Finally, a three-story precast wall panel structure is employed to assess the collapse performance of the proposed precast structure system by using the presented numerical model. The results indicate that the proposed structure system with full bolt connections has high stiffness and high seismic resistance against collapse.

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“…To reduce manufacture cost while achieving good connecting properties, a new connector of NPGCS (new pore-forming grouted connector with welded closure confinement steels) was invented in early research [7], which only uses the widely applied normal steel bars and the preburied thin metal pore to replace or partially replace the expensive grouted steel sleeve and to reduce the manufacture cost [8,9]. e NPGCS is composed of the buckleconfigured confinement steel bars, connecting overlapped steel bars, thin metal pore, and grouting materials.…”

Section: Introductionmentioning

confidence: 99%

Finite‐Element Simulation on NPGCS Precast Shear Wall Spatial Structure Model

Liang²,

Shen

et al. 2019

Advances in Civil Engineering

Self Cite

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Seismic performance is basically required in precast shear wall. This study focuses on evaluation and improvement on precast shear wall seismic performance. By carrying out the finite-element simulation on a precast shear wall spatial model with new connector from a practical high-rise precast residential building, which was named as NPGCS and experimentally tested by low-cyclic reversed lateral loads in early studies, the performance results including strengths, stiffness, stress, and concrete damage ratio distributions were obtained, and the reliability of NPGCS spatial model was verified. According to the testing results, the finite-element simulation for the NPGCS spatial model is reliable and relatively accurate, especially for applying contact and beam elements into numerical analysis of precast interfaces and dowel shear actions, respectively. The strengths, stiffness, stress, and concrete damage ratio distributions from the simulation also supported the experimental results and conclusions.

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The development and experimental test of a new pore-forming grouted precast shear wall connector

Cited by 18 publications

References 13 publications

An exhaustive research and analysis on seismic performance of prefabricated concrete shear wall structure

An exhaustive research and analysis on seismic performance of prefabricated concrete shear wall structure

Experimental and Numerical Analysis of the Bolt Connections in a Low‐Rise Precast Wall Panel Structure System

Finite‐Element Simulation on NPGCS Precast Shear Wall Spatial Structure Model

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