Behaviour of Precast Concrete Beam-to-Column Connection with SHS Hidden Corbel Subjected to Monotonic Load

Beam-to-column connection is the most critical part of a precast concrete (PC) structure as it governs the integrity of the entire structure. In this study, a beam-to-column connection with square hollow section (SHS) hidden corbel was developed. A full-scale test was conducted on eleven T-subframe specimens with various configurations to investigate the behaviour of the connection under an incremental static load. The behaviour of the connection was evaluated in terms of the moment-rotation response and the mechanical properties were obtained by using the beam-line method. Due to the extensive usage of steel elements, the PC connect possessed a higher ultimate strength than the reinforced concrete (RC) connection. The moment resistance of the connection was largely contributed to by the hidden corbel embedded in the beam and column. However, the PC connection gave a lower stiffness, which resulted in a larger rotation deformation than the RC connection, and thus lowered its design strength. The PC connection was classified as semi-rigid and partial strength, and only specimen PC-3 was considered feasible for PC structures.

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A Review of Precast Concrete Beam-to-Column Connections Subjected to Severe Fire Conditions

Advances in Civil Engineering ◽

10.1155/2020/8831120 ◽

2020 ◽

Vol 2020 ◽

pp. 1-23

Author(s):

Noor Azim Mohd Radzi ◽

Roszilah Hamid ◽

Azrul A. Mutalib ◽

A. B. M. Amrul Kaish

Keyword(s):

Large Scale ◽

Concrete Beam ◽

Structural Integrity ◽

Precast Concrete ◽

Analytical Models ◽

Fire Effect ◽

The Moment ◽

The Impact ◽

Comprehensive Study ◽

Fire Conditions

Fire exposure can have a significant impact on the structural integrity and robustness of precast concrete beam-to-column connections. Given the importance of fire safety in the design of a structure, it is critical to understand the damage that may occur in the event of a fire to be able to prevent the building from collapsing. No comprehensive study has been carried out to determine the effects of fire on semirigid and pinned concrete beam-to-column connections. Most studies focused on the impact of exposure of rigid concrete beam-to-column connections to high temperatures. This paper is a comprehensive review of the literature on the performance of precast concrete beam-to-column connections under fire conditions. The key areas in this review are the moment-rotation-temperature characteristics and fire effect on precast concrete beam-to-column connections. This paper focuses primarily on the case studies of real fires, large-scale fire tests, computer simulations and analytical models, fire resistance tests on the connection elements, and assessment and rehabilitation of fire-damaged precast concrete. The paper also discusses the current issues and possible challenges.

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Numerical study on beam-column connection of cantilever precast concrete beam with asymmetric shape under static load

MATEC Web of Conferences ◽

10.1051/matecconf/201819502009 ◽

2018 ◽

Vol 195 ◽

pp. 02009

Author(s):

Hakas Prayuda ◽

Robbi’al Rollyas Syandy ◽

Bagus Soebandono ◽

Taufiq Ilham Maulana ◽

Martyana Dwi Cahyati

Keyword(s):

Concrete Beam ◽

Static Load ◽

Numerical Study ◽

Precast Concrete ◽

Concrete Structures ◽

Damage Mechanism ◽

Cantilever Beams ◽

Three Samples ◽

Section Shape ◽

Asymmetric Shape

Cantilever beams are generally used in all infrastructures, including precast concrete structures. In that type of structure, the asymmetric-section shape usage will be optimum and effective. However, in precast concrete structures, it might be susceptible especially in beamto- connection parts due to its strength. In this research, the damage mechanism of connections between cantilever beams and columns in precast concrete will be analyzed. The asymmetric shape will be applied in cantilever beams. Three samples were made with a length of 1500 mm equipped with six 10 mm-diameter deformed rebar and stirrup with 6 mmdiameter plain rebar. The results show that each of the three speciments has its own effectiveness based on stress, strain, displacement, load, and other related parameters.

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Full-Scale Test on Precast Concrete Arch Bridge with Reinforced Joint and Backfill

Journal of the Korean Society of Civil Engineers ◽

10.12652/ksce.2014.34.2.0389 ◽

2014 ◽

Vol 34 (2) ◽

pp. 389

Author(s):

Sanghoon Joo

Keyword(s):

Precast Concrete ◽

Full Scale ◽

Full Scale Test ◽

Arch Bridge ◽

Scale Test

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Full-Scale Test on Coupled Thermo-Hydro-Mechanical Processes in Engineered Barrier System

Journal of Nuclear Fuel Cycle and Environment ◽

10.3327/jnuce.1.77 ◽

1994 ◽

Vol 1 (1) ◽

pp. 77-83

Author(s):

Yoshiji Moro ◽

Tomoo Fujita ◽

Takeshi Kanno ◽

Akira Kobayashi

Keyword(s):

Full Scale ◽

Full Scale Test ◽

Scale Test ◽

Engineered Barrier

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The assessment of particulate matter (PM2.5) removal efficiency on air cleaner products through full scale test in Korea

Journal of Odor and Indoor Environment ◽

10.15250/joie.2019.18.1.76 ◽

2019 ◽

Vol 18 (1) ◽

pp. 76-80 ◽

Cited By ~ 2

Author(s):

Kichul Kim ◽

Pil-Ju Park ◽

Soomi Eo ◽

Seungmi Kwon ◽

Kwangrae Kim ◽

...

Keyword(s):

Particulate Matter ◽

Removal Efficiency ◽

Full Scale ◽

Full Scale Test ◽

Air Cleaner ◽

Scale Test

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Use of Foam Polystyrene Waste in the Conditions of a Reinforced Concrete Products Factory

Zhilishchnoe Stroitel stvo ◽

10.31659/0044-4472-2020-10-49-52 ◽

2020 ◽

pp. 49-52

Author(s):

S.E. YANUTINA ◽

Keyword(s):

Reinforced Concrete ◽

Precast Concrete ◽

Expanded Polystyrene ◽

Insulation Material ◽

Design Strength ◽

Foam Polystyrene ◽

Secondary Use ◽

Concrete Blocks ◽

Polystyrene Waste ◽

Factory Laboratory

The relevance of research in the factory laboratory of JSC «198 KZHI», which is part of the HC GVSU «Center», is dictated by the need to dispose of foam polystyrene waste that occurs in large quantities when producing the precast concrete. In the production of three-layer external wall panels, polystyrene heatinsulating plates of the PPS 17-R-A brand are used as an effective insulation material. The secondary use of PPS 17-R-A for its intended purpose, as a heater, is not possible. The volume of foam polystyrene produced varies from 25 to 45 m3 per month. Utilization (disposal) of foam polystyrene waste is an expensive undertaking. Its use as a filler in the production of expanded polystyrene blocks was tested in the factory’s laboratory to produce foam polystyrene concrete with specified physical and mechanical characteristics. The results of testing of expanded polystyrene concrete of classes B2.5 and B 7.5 are presented. It is shown that under the conditions of the reinforced concrete factory technology, the production of polystyrene concrete blocks is possible with the achievement of the design strength. The information presented in the article is aimed at motivating specialists who produce recast concrete to the possibility of using foam polystyrene waste for low-rise construction. Keywords: foam polystyrene, ecology, energy efficiency, foam polystyrene concrete, foam polystyrene heat insulation plates, precast concrete.

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