Flexural performance of precast hollow core slabs strengthened with textile reinforced highly ductile concrete (TRHDC)

• Autorzy: Song Shifei , Deng Mingke , Yang Jiasheng , Li Ruizhe , Zhang Yangxi

Identyfikatory

DOI

10.1007/s43452-023-00777-6

• Języki publikacji: EN

Abstrakty

EN

Textile-reinforced highly ductile concrete (TRHDC) was a promising composite material, which exhibited multiple crack characteristics, high cracking and ultimate tensile strength under uniaxial tension. In this study, six precast hollow-core slabs including one reference slab and five TRHDC-strengthened slabs were manufactured and tested as simply supported under four-point bending. The parameters under investigation included: (I) the TRHDC matrix added with or without polyvinyl alcohol (PVA) fibres, and (II) the number of textile layers. The test results indicated that adding PVA fibres in the TRHDC matrix could effectively limit the crack width of TRHDC composites, and multi-crack behavior was observed in the strengthening overlay. Besides, TRHDC composites were efficient in enhancing the flexural capacity of strengthened slabs, which were 70-113% in cracking load, and 74-132% in peak load compared with the reference slab. Finally, based on the plane section assumption, an analytical model was given to predict the flexural capacity of TRHDC-strengthened slabs.

Słowa kluczowe

EN

precast hollow core slabs; TRHDC; textile reinforced highly ductile concrete

PL

prefabrykowane płyty kanałowe; wzmocnienie tekstylne; płyta kanałowa

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 4
• Strony: art. e238, 1--15
• Opis fizyczny: Bibliogr. 29 poz., il., tab., wykr.

Twórcy

autor

Song Shifei

• Xi’an University of Architecture and Technology, School of Civil Engineering, Xi’an, Shaanxi Province, China

autor

Deng Mingke

• Xi’an University of Architecture and Technology, School of Civil Engineering, Xi’an, Shaanxi Province, China

autor

Yang Jiasheng

• Xi’an University of Architecture and Technology, School of Civil Engineering, Xi’an, Shaanxi Province, China

autor

Li Ruizhe

• Xi’an University of Architecture and Technology, School of Civil Engineering, Xi’an, Shaanxi Province, China

autor

Zhang Yangxi

• Xi’an University of Architecture and Technology, School of Civil Engineering, Xi’an, Shaanxi Province, China

• https://orcid.org/0000-0002-6780-6450

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