Experimental Research on Seismic Performance of a New-Type of R/C Beam-Column Joints with End Plates

Li, Shufeng; Li, Qingning; Jiang, Haotian; Zhang, Hao; Zhang, Lizhong

doi:10.1155/2017/3823469

Cited by 6 publications

(6 citation statements)

References 12 publications

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“…Hysteresis curves (Li et al ., 2017) can reflect the characteristics of structural deformation, rigidity degradation and energy dissipation in the process of repeated stress. Figure 9 plots the lateral load-displacement hysteresis curves of RC1-RC7 specimens under low-cycle loading and which were measured directly through the force and displacement sensors in the actuator at the RC specimen top.…”

Section: Resultsmentioning

confidence: 99%

Experimental study on seismic behavior of RC beams confined by corroded stirrups

Shu,

Lu,

Liang

2023

IJSI

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PurposeTo understand the seismic behavior of reinforced concrete (RC) beams confined by corroded stirrups, low-reversed cyclic loading tests were carried out on seven RC beam specimens with different stirrup corrosion levels and stirrup ratios to investigate their mechanical characteristics.Design/methodology/approachThe failure mode, hysteresis behavior, skeleton curves, ductility, stiffness degradation and energy dissipation behavior of RC specimens are compared and discussed. The experimental results showed that the restraint of concrete provided by corroded stirrups is reduced, which leads to a decline in seismic performance.FindingsFor the specimens with the same ratios of stirrup, as the corrosion level increased, the load-carrying capacity, stiffness, plastic deformation capacity and energy-dissipation capacity dropped significantly. Compared with the uncorroded specimen, the failure modes of specimens with high corrosion level changed from ductile bending failure to brittle failure. For the specimens with the same levels of corrosion, the higher the stirrup ratio was, the stronger the restraint effect of the stirrups on the concrete, and the seismic behavior of the specimens was obviously improved.Originality/valueIn this paper, a total of seven full-size RC beam specimens at joints with different stirrup corrosion levels and stirrup ratios were designed and constructed to explore the influences of corrosion levels and stirrup ratios of stirrups on the seismic performances. The failure modes, strain of reinforcement, hysteretic curves, skeleton curves, stiffness degradation and ductility factor of RC specimens are compared and discussed.

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Section: Resultsmentioning

confidence: 99%

Experimental study on seismic behavior of RC beams confined by corroded stirrups

Shu,

Lu,

Liang

2023

IJSI

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“…In recent years, the construction industry h as innovated in the production of new materials with an ecological trend [13] that provide energy savings and minimum cost in their production, generally these materials are produced with waste materials already made [14] that st ill have a very long useful life to reach the final degradation process. Plastic is one of the materials that takes the longest time to degrade, extending up to 500 years [15], which generates a long-term environmental problem. Decent housing must be friendly to the environment since it mu s t reduce the gray footprint with ecological proposals [16].…”

Section: Theoretical Basismentioning

confidence: 99%

Sustainable management of plastic waste and water in the production of houses of social interest in San Clemente, Manabí

Briones¹

2022

Proceedings of the 20th LACCEI International Multi-Conference for Engineering, Education and Technology: “Education, Research A

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Manabí is the second province in Ecuador with the largest housing deficit, with approximately 50% of this deficit in Sa n Clemente alone. Around the beaches of this commune 800 k go f plastic waste are produced year after year and continually suffers from electrical blackouts due to poor design of the current electrica l network. This scientific article addresses the problem through sustainable solutions that promote a sustainable housing design proposal based on the collection of plastic waste and obtaining hydraulic energy. The production of waste is analyzed for the production of 150 new houses based on this sustainablesolution.

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“…The effect of axial compression ratio on fire resistance is studied. Based on the pseudo-static test of a new type of the end-plate connected prefabricated concrete beam-column joint (Li et al , 2018; Li et al , 2017), the author carry out the research on the fire resistance performance of the joint. Based on the fire resistance performance of the prefabricated joint member (Li et al , 2020), the fire resistance of the joint in the whole frame structure is analyzed.…”

Section: Introductionmentioning

confidence: 99%

Study on fire resistance of a prefabricated reinforced concrete frame structure

Zhang

Zhao

et al. 2021

JSFE

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Purpose This study aims to further study the fire resistance of prefabricated concrete beam-column joints with end-plate connection. This paper aims to analyze the fire resistance of this joint in prefabricated reinforced concrete frame structure (PRCS). Design/methodology/approach First, the accuracy of the model is verified by using the test data. Based on this, a refined finite element model of PRCS structure with two stories and two spans is established. The influence of four working conditions with different fire floors (positions) and different axial compression ratios on the deformation, failure and fire resistance of PRCS structure are analyzed. Findings The results show that under the four working conditions, the fire resistance of the PRCS structure under Condition 1 and Condition 2 is smaller. It shows that the beam deformation develops slowly in PRCS structure under four kinds of fire positions, and the large displacement emerges 60 min later, which is poles apart from that of prefabricated beam column members. With the increase of the fire time, the material is damaged and deteriorated, which leads to the eccentricity of the axial load, so that the column top appears large lateral displacement. Under the Conditions 1 and 3, the lateral displacement of the column gradually decreases as the axial compression ratio rises. Originality/value It is found that there is a distinct lack of researching on the fire resistance of prefabricated joints, and the existed research studies are limited to the fire resistance of members. Thus, it is necessary to strengthen the first floor and side column design of prefabricated frame structure.

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Experimental Research on Seismic Performance of a New-Type of R/C Beam-Column Joints with End Plates

Cited by 6 publications

References 12 publications

Experimental study on seismic behavior of RC beams confined by corroded stirrups

Experimental study on seismic behavior of RC beams confined by corroded stirrups

Sustainable management of plastic waste and water in the production of houses of social interest in San Clemente, Manabí

Study on fire resistance of a prefabricated reinforced concrete frame structure

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