Experimental study of prefabricated RC column-foundation assemblies with two different connection methods and using large-diameter reinforcing bars

Based on the experimental study of rotary filling piles with large diameter subjected to axial load in deep soft soil, the bearing capacity behavior and load transfer mechanism were discussed. Results show that in deep soft soil foundation, the super–long piles behave as end-bearing frictional piles. The exertion of the shaft resistance is not synchronized. The upper layer of soil is exerted prior to the lower part of soil. Meanwhile, the exertion of shaft resistance is prior to the tip resistance. For the different soil and the different depth of the same layer of soil, shaft resistance is different.

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An experimental study of welded splices of reinforcing bars

Building and Environment ◽

10.1016/j.buildenv.2005.05.025 ◽

2006 ◽

Vol 41 (10) ◽

pp. 1394-1405 ◽

Cited By ~ 7

Author(s):

Camille A. Issa ◽

Antoine Nasr

Keyword(s):

Experimental Study ◽

Reinforcing Bars

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Theoretical analysis and experimental study of the characteristics of magnetic fluid seal with a large diameter at high/low temperatures

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-180065 ◽

2018 ◽

Vol 58 (4) ◽

pp. 531-550

Author(s):

Du Hao ◽

Decai Li ◽

Jiawei Chen ◽

Jun Yu

Keyword(s):

Experimental Study ◽

Theoretical Analysis ◽

Magnetic Fluid ◽

Low Temperatures ◽

Large Diameter

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Experimental Study on the Structural Performance of Beam-Column Joints in Old Buildings without Designed Shear Reinforcement under Earthquake

Materials Science Forum ◽

10.4028/www.scientific.net/msf.902.33 ◽

2017 ◽

Vol 902 ◽

pp. 33-40

Author(s):

Cong Thuat Dang ◽

Ngoc Hieu Dinh

Keyword(s):

Experimental Study ◽

Reinforced Concrete ◽

Shear Failure ◽

Test Results ◽

Shear Reinforcement ◽

Reinforcing Bars ◽

Reinforced Concrete Buildings ◽

Concrete Buildings ◽

Gravity Load ◽

Load Beam

Old reinforced concrete buildings constructed around 1980’s in many developing countries have been designed against mainly gravity load. Beam-column joints in these buildings contain slightly or no shear reinforcement inside the panel zones due to the construction convenience, and are vulnerable to shear failure in beam-column joints under the action of earthquake loads, especially for the exterior beam-column joints. This experimental study aimed to investigate the seismic performance of five half-scale exterior beam-column joints simulating the joints in existing reinforced-concrete buildings with non-shear hoop details. The test results showed that the structural performances of the beam-column joints under earthquake including failure mode, load-drift ratio relationship, shear strain of the joints and energy dissipation are strongly affected by the amount of longitudinal reinforcing bars of beams.

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Experimental Study of Composite Hollow RC Column under Uniaxial Compressive Load

Applied Sciences ◽

10.3390/app9030373 ◽

2019 ◽

Vol 9 (3) ◽

pp. 373

Author(s):

Deokhee Won ◽

Seungjun Kim ◽

Jihye Seo ◽

and Young-Jong Kang

Keyword(s):

Experimental Study ◽

Concrete Strength ◽

Compressive Load ◽

High Strength ◽

Transverse Reinforcement ◽

Strength Concrete ◽

Rc Column ◽

Steel Composite ◽

Normal Strength ◽

Concentric Loading

This paper presents an experimental study of the behavior of a steel-composite hollow reinforced concrete (RC) column under concentric loading. The effects of important variables, such as concrete strength, inner tube thickness, hollow ratio, column diameter, and transverse reinforcement space, are presented in this study. The failure of composite hollow RC columns is characterized by the formation of an inclined shear sliding plane. When the column had a highly confined effect, the inclination of the shear sliding plane was 45°. This study shows that the required performance is achieved when the splice providing transverse reinforcement is fully bonded. Furthermore, the inner tube experiences buckling failure after reaching its maximum strength. The steel-composite hollow RC column with high-strength concrete (HSC) has lower ductility and toughness compared to a column with normal-strength concrete (NSC).

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