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Journal articles on the topic 'Reinforced concrete column'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Pei, Weichang, Daiyu Wang, Xuan Wang, and Zhenyu Wang. "Axial monotonic and cyclic compressive behavior of square GFRP tube–confined steel-reinforced concrete composite columns." Advances in Structural Engineering 24, no. 1 (2020): 25–41. http://dx.doi.org/10.1177/1369433220934557.

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Fiber-reinforced polymer tube–confined steel fiber–reinforced concrete column is a novel composite column proposed recently, which consists of a traditional steel-reinforced concrete column and an external glass fiber–reinforced plastic tube for lateral confinement. In order to investigate the axial compression behavior of steel fiber–reinforced concrete columns, a total of 16 square specimens were fabricated and tested under axial monotonic and cyclic compressive loading. Three different configurations of inner shaped steels, including cross-shaped, box-shaped with wielding, and box-shaped wi

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2

Nhabih, Hussein Talab, Ahmed M. Hussein, and Marwa Marza Salman. "Study a Structural Behavior of Eccentrically Loaded GFRP Reinforced Columns Made of Geopolymer Concrete." Civil Engineering Journal 6, no. 3 (2020): 563–75. http://dx.doi.org/10.28991/cej-2020-03091492.

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This study investigated a modern composite material, which is a short geopolymer concrete column (GPCC) reinforced by GFRP bars. The structural performances of GPCC subjected to eccentric load were studied and compared to the normal strength concrete column (NSCC) reinforced by steel bars. In this study, the primary experimental parameters were the reinforcement bars types, load eccentricity, and concrete types. Seven short columns were tested: three normal strength concrete columns reinforced by steel bars, three geopolymer concrete columns reinforced by GFRP bars and one normal strength conc

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3

Xu, Pi Yuan, Lin Lin Ren, and Ya Feng Xu. "The Antiknock Property Research of L Steel Reinforced Concrete Special-Shaped Column in the Different Thicknesses of Steel Bone in Blast Loads." Applied Mechanics and Materials 351-352 (August 2013): 654–57. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.654.

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In this paper, L steel reinforced concrete special-shaped columns are established by the finite element analysis software ABAOUS and we simulate and analyze models in blast loads. The main purpose is to study the antiknock property of L steel reinforced concrete special-shaped column in the different thicknesses of steel bone. We change the thickness of steel bone to get the time-displacement curve of L steel reinforced concrete special-shaped columns in blast loads. On the basis of the study we draw the conclusion: the antiknock property of L steel reinforced concrete special-shaped column is

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4

Mohamed Sayed, Ahmed, Mohamed Mohamed Rashwan, and Mohamed Emad Helmy. "Experimental Behavior of Cracked Reinforced Concrete Columns Strengthened with Reinforced Concrete Jacketing." Materials 13, no. 12 (2020): 2832. http://dx.doi.org/10.3390/ma13122832.

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Reinforced concrete (RC) columns often need to be strengthened or rehabilitated to allow them to carry the loads applied to them. In previous studies, RC columns have been strengthened by jacketing, without considering the occurrence of cracking. In this study, the behavior of RC columns strengthened externally by jacketing after cracking is analyzed. The accuracy of the existing models was verified by analyzing the performance of fifteen RC columns with different cross-sections to determine the effect of new variables, such as the column size, amount of steel reinforcement, and whether the co

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Thejarathnam, T., M. H. Prashanth, and Imran Kuttagola. "Study on the effectiveness of prefabricated cage system reinforcement in columns." IOP Conference Series: Earth and Environmental Science 1149, no. 1 (2023): 012010. http://dx.doi.org/10.1088/1755-1315/1149/1/012010.

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Abstract The concrete is the primary vertical load bearing component in a reinforced concrete column whereas the steel cage provides additional vertical load carrying capacity along with the confinement of core concrete. The research paper will focus on the performance of Prefabricated Cage System (PCS) Reinforcement in square columns. Eight columns were casted and tested, out of which two are rebar reinforced columns and six are PCS reinforced columns. There were two test groups, each group containing one rebar column and three PCS columns. In this study work is done to compare the performanc

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Guri, Zijadin, Jelena Ristic, and Danilo Ristic. "Nonlinear response of RC column models under real earthquakes and axial loads." Journal of the Croatian Association of Civil Engineers 76, no. 10 (2024): 919–30. http://dx.doi.org/10.14256/jce.3947.2024.

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This paper reports on original findings from advanced HYLSER-1 seismic tests conducted on steel-reinforced concrete column models subjected to simulated low and high axial loads. The study includes a comparative analysis of steel-reinforced concrete (SRC) column models and composite-reinforced concrete (CRC) column models, using refined nonlinear analytical micro-models. The results demonstrate that earthquake intensity, axial load level, and concrete confinement are the primary factors influencing the complex hysteretic responses and failure of column models reinforced with either conventiona

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7

Niu, Jiangang, Wenming Xu, Jingjun Li, and Jian Liang. "Influence of Cross-Sectional Shape on the Mechanical Properties of Concrete Canvas and CFRP-Reinforced Columns." Advances in Materials Science and Engineering 2021 (May 11, 2021): 1–14. http://dx.doi.org/10.1155/2021/5541587.

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Fiber-reinforced polymer (FRP) wrapping has become an attractive strengthening technique for concrete columns. However, the ingress of corrosion into the concrete through the gap of CFRP fiber greatly reduces the durability of concrete and the bearing capacity of specimens. Concrete canvas, a kind of corrosion-resistant and refractory material, is a promising method to enhance durability and carrying capacity. In this study, the concrete canvas (CC) and carbon fiber-reinforced polymer (CFRP) were used to jointly reinforce columns with square cross section, octagonal cross section, circular cro

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8

Guo, Quan Quan, Yu Xi Zhao, and Kun Shang. "Experimental Research on Eccentric Compressive Performance of Steel Tube-Reinforced Concrete Column." Advanced Materials Research 163-167 (December 2010): 184–90. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.184.

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Eccentric loading experiment of 13 steel tube-reinforced concrete columns and a reinforced concrete column is implemented. The whole process from the start load on the steel tube-reinforced concrete column until damage has been researched. Change of ultimate bearing capacity with eccentricity, longitudinal reinforcement ratio, position coefficient has been studied, and deflection curve and load-vertical displacement curve under eccentric compressive load were obtained. Failure characteristics of steel tube-reinforced concrete were divided into two different type, small eccentric damage and big

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9

Lei, Min, Zihao Wang, Penghui Li, et al. "Experimental Investigation on Short Concrete Columns Reinforced by Bamboo Scrimber under Axial Compression Loads." Advances in Civil Engineering 2020 (September 29, 2020): 1–12. http://dx.doi.org/10.1155/2020/8886384.

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The paper presents bamboo scrimber bars as a reinforcing material instead of steel reinforcement in low-strength concrete columns. Twelve short concrete columns with different reinforcements are tested under axial compression load to study the axial compressive behavior of short concrete columns reinforced by bamboo scrimber. Three columns are reinforced concrete columns, and the other nine columns are bamboo scrimber reinforced concrete columns. The failure process, bearing capacity, axial deformation, and strain of the specimens are compared and analyzed. The results show that the bonding pe

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10

Shehab, Hamdy, Ahmed Eisa, Ahmed Mohamed Wahba, Peter Sabol, and Dušan Katunský. "Strengthening of Reinforced Concrete Columns Using Ultra-High Performance Fiber-Reinforced Concrete Jacket." Buildings 13, no. 8 (2023): 2036. http://dx.doi.org/10.3390/buildings13082036.

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The use of Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) increased in the field of civil engineering throughout the last few decades. UHPFRC is being used considerably on a large scale in megastructure applications. High compressive and tensile strength permits reconstruction and optimization of the structural members. At the same time, its improved durability properties make it easier to extend the life of the design and can be used as thin layers, cladding, repairs, and column coverings. Although UHPC has an extremely high compressive strength, it exhibits very brittle fracture b

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11

Tian, Jia Jia, and Hong Li. "The Influence of Vertical Loads on Lateral Deformation of Steel Reinforced Concrete Column." Advanced Materials Research 639-640 (January 2013): 782–85. http://dx.doi.org/10.4028/www.scientific.net/amr.639-640.782.

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The influence of vertical loads on steel reinforced concrete column is analyzed, based on the maximum lateral displacement of 2 different steel reinforced concrete columns under different vertical loads. The vertical loads, the section properties of the steel reinforced concrete column and horizontal loads are the influencing factors.

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12

Bao, Yanhong, Bowen Chen, and Lei Xu. "Analysis of Concrete-Filled Steel Tube Reinforced Concrete Column-Steel Reinforced Concrete Beam Plane Frame Structure Subjected to Fire." Advances in Civil Engineering 2021 (April 7, 2021): 1–12. http://dx.doi.org/10.1155/2021/6620030.

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The ABAQUS finite-element analysis platform was used to understand the mechanical behavior of concrete-filled steel tube reinforced concrete (CFSTRC) columns and steel reinforced concrete (SRC) beam plane frames under fire conditions. Thermal parameters and mechanical constitutive model of steel and concrete materials were reasonably selected, the correct boundary conditions were chosen, and a numerical model for the thermal mechanical coupling of CFSTRC columns and SRC beam plane frame structure was established. The finite-element model was verified from related experimental test results. The

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13

P., Mahakavi, P. Dinesh kumar S., Elamathi L., Mohammed Anees H., and Selva R. "EXPERIMENTAL STUDY ON MECHANICAL BEHAVIOUR OF CONCRETE COLUMN CONFINED WITH POLY VINYL CHLORIDE PIPES." International Journal of Engineering Research and Modern Education Special Issue, April 2017 (2017): 72–74. https://doi.org/10.5281/zenodo.570132.

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Columns are the most important elements of the structures, failure of one column in a critical location can cause a progressive collapse. PVC pipes has been used in recent years to strengthening the Reinforced concrete column members. Most of the research reported concerns testing specimens under concentric axial loads. In reality the loads on columns can be eccentric due to columns loacation (corner & edges columns) or due to construction errors. This paper presents the influence of PVC pipe on concrete columns carrying capacity of concentric and eccentric loads. Six high strength reinfor

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14

Panjwani, Prakash, and Dr S. K. DUBEY. "Study of Reinforced Concrete Beam-Column Joint." International Journal of Engineering Research 4, no. 6 (2015): 321–24. http://dx.doi.org/10.17950/ijer/v4s6/610.

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15

Dwi Sulistiyawati, Noor Mohammad Hatta, Fariz Wahyu Setiawan, Arny Wasis Enggarriny, and Agustinus Sungsang Nana Patria. "Serat Tanaman Mendong Sebagai Fiber Jacket Untuk Perkuatan Kolom Beton Bertulang Pasca Kerusakan Bangunan." Jurnal Penelitian Rumpun Ilmu Teknik 3, no. 1 (2023): 141–48. http://dx.doi.org/10.55606/juprit.v3i1.3205.

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Column collapse can be overcome by increasing the nominal strength of the cross section, one of which is by strengthening using FRP (Fiber Reinforced Polymer). This research will focus on the effect of using mendong plant fiber as a fiber jacket for strengthening reinforced concrete columns after building damage. Starting from material testing, mix design calculations, making test objects and testing test objects. There are 3 variations of test objects, namely concrete without a layer of Mendong fiber, concrete with 2 layers of Mendong fiber and concrete with 4 layers of Mendong fiber. The num

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16

Purba, Burt K., and Aftab A. Mufti. "Investigation of the behavior of circular concrete columns reinforced with carbon fiber reinforced polymer (CFRP) jackets." Canadian Journal of Civil Engineering 26, no. 5 (1999): 590–96. http://dx.doi.org/10.1139/l99-022.

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Recent advancements in the fields of fiber reinforced polymers (FRPs) have resulted in the development of new materials with great potential for applications in civil engineering structures, and due to extensive research over recent years, FRPs are now being considered for the design of new structures. This study describes how carbon fiber reinforced polymer jackets can be used to reinforce circular concrete columns. Fibers aligned in the circumferential direction provide axial and shear strength to the concrete, while fibers aligned in the longitudinal direction provide flexural reinforcement

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17

VIRGENS, J. P., R. B. GOMES, L. M. TRAUTWEIN, G. N. GUIMARÃES, and A. P. R. VAZ. "Experimental analysis of eccentrically loaded reinforced concrete columns with an added jacket of self-compacting concrete." Revista IBRACON de Estruturas e Materiais 12, no. 2 (2019): 329–36. http://dx.doi.org/10.1590/s1983-41952019000200007.

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Abstract This paper presents the experimental study of eccentrically loaded reinforced concrete columns with an added 35 mm self-compacting concrete jacket attached to the column’s most compressed face using wedge bolts. Nine columns with a 2000 mm height were tested under compression and one-way bending until failure. Columns were denominated as original column (PO) with a cross section of 120 mm x 250 mm; reference column (PR) with a cross section of 155 mm x 250 mm, and seven columns with an initial cross section of 120 mm x 250 mm and later reinforced by the addition of 35 mm self-compacti

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18

FERREIRA, D. B., R. B. GOMES, A. L. CARVALHO, and G. N. GUIMARÃES. "Behavior of reinforced concrete columns strenghtened by partial jacketing." Revista IBRACON de Estruturas e Materiais 9, no. 1 (2016): 1–21. http://dx.doi.org/10.1590/s1983-41952016000100002.

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This article presents the study of reinforced concrete columns strengthened using a partial jacket consisting of a 35mm self-compacting concrete layer added to its most compressed face and tested in combined compression and uniaxial bending until rupture. Wedge bolt connectors were used to increase bond at the interface between the two concrete layers of different ages. Seven 2000 mm long columns were tested. Two columns were cast monolithically and named PO (original column) e PR (reference column). The other five columns were strengthened using a new 35 mm thick self-compacting concrete laye

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19

Aryan, Hadi. "Seismic Resistant Bridge Columns with NiTi Shape Memory Alloy and Ultra-High-Performance Concrete." Infrastructures 5, no. 12 (2020): 105. http://dx.doi.org/10.3390/infrastructures5120105.

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Reinforced concrete bridge columns often endure significant damages during earthquakes due to the inherent deficiencies of conventional materials. Superior properties of the new materials such as shape memory alloy (SMA) and ultra-high-performance concrete (UHPC), compared to the reinforcing steel and the normal concrete, respectively, are needed to build a new generation of seismic resistant columns. Application of SMA or UHPC in columns has been separately studied, but this paper aims to combine the superelastic behavior of NiTi SMA and the high strength of UHPC, in order to produce a column

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20

Rodsin, Kittipoom. "Ductility Enhancement of High Strength RC Columns Using Steel Fiber Reinforced Concrete (SFRC)." Advanced Materials Research 931-932 (May 2014): 463–67. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.463.

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The principal aim of this research is to improve the seismic performance of high strength concrete (HSC) reinforced columns using fiber reinforced concrete (FRC) by mixing steel fiber into the concrete. Two reinforced concrete columns 200mm x 300mm in cross-section with a height of 1250 mm were tested under cyclic lateral loading. The first specimen was casted using high strength concrete of 100 MPa and the second specimens were also casted using similar concrete strength but the steel fiber of 0.5% by volume was added to the concrete in the plastic hinge region. Both columns were subjected to

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21

Krutii, Yurii, Anatolii Kovrov, Yurii Otrosh, and Mykola Surianinov. "Analysis of Forced Longitudinal Vibrations of Columns Taking into Account Internal Resistance in Resonance Zones." Materials Science Forum 1006 (August 2020): 79–86. http://dx.doi.org/10.4028/www.scientific.net/msf.1006.79.

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In analytical form, formulas are obtained for the amplitude of forced harmonic longitudinal vibrations of reinforced concrete and fiber-reinforced concrete columns with fixed edges. In order to verify the proposed approach, columns were simulated in the ANSYS program and calculated by the finite element method. Analysis of the calculations shows that a significant raise in the amplitude of the forced vibrations is observed only in the region of the first resonant frequency. It has been established that the value of the maximum amplitude of the vibrations of the fiber reinforced concrete column

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22

Tian, Peng, Xu Dong Shi, Yuan Qing Wang, and Yan Nian Zhang. "Mechanical Behavior Analysis of Reinforced Concrete Column Strengthening with Shear Wall." Applied Mechanics and Materials 438-439 (October 2013): 696–700. http://dx.doi.org/10.4028/www.scientific.net/amm.438-439.696.

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This paper studies the influences of factors such as axial compressive ratio and shear wall thickness on the mechanical performance of the reinforced concrete column strengthening with shear wall under low-cyclic reversed loading. Considering the secondary stress characteristics of the strengthening column, a numerical analysis was made on the load displacement hysteretic curve and skeleton curve. The results show that, with the increasing of axial compression ratio, the bearing capacity and stiffness of reinforced concrete column increased, but the ductility of reinforced column reduced; the

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23

Chiang, J. C. L., and Leong Wai Lim. "Behaviour and Strengthening Methods of Tall Slender Columns in Earthquake Conditions." Key Engineering Materials 879 (March 2021): 221–31. http://dx.doi.org/10.4028/www.scientific.net/kem.879.221.

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Reinforced concrete buildings are normally designed and constructed with well-defined vertical column supports which are able to withstand both vertical and lateral loadings. In the case of high columns there is a risk of instability due to its slenderness caused by the higher apex ratio (measured by its height in relation to the width). This is compounded by having such buildings located at medium to high seismic risk zones, where lateral dynamic loadings can occur. This research paper focused on how such slender reinforced concrete columns will behave under earthquake loading conditions, and

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Qi, Yue. "Experimental Research on Bearing Capacity of Concrete Columns with High Strength Concrete Core under Axial Compression Loading." Advanced Materials Research 479-481 (February 2012): 2041–45. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2041.

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Based on experimental research on plain concrete columns with high strength concrete core, the formula to predict the bearing capacity of concrete columns with high strength concrete core under axial compression loading was brought forward in previous paper, in order to verify the formula whether right, axial compression test including 3 concrete columns with high strength concrete core and 1 ordinary reinforced concrete column were completed, and the failure characteristic was analyzed additionally. According to experimental results, it can be shown that the failure modes of concrete columns

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Elwood, Kenneth J. "Modelling failures in existing reinforced concrete columns." Canadian Journal of Civil Engineering 31, no. 5 (2004): 846–59. http://dx.doi.org/10.1139/l04-040.

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Experimental research and post-earthquake reconnaissance have demonstrated that reinforced concrete columns with light or widely spaced transverse reinforcement are vulnerable to shear failure, and in turn, axial failure during earthquakes. Based on experimental data, failure surfaces have been used to define the onset of shear and axial failure for such columns. After the response of the column intersects the failure surface, the shear or axial strength of the column begins to degrade. This paper introduces a uniaxial material model that incorporates the failure surfaces and the subsequent st

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Park, Jong Wook, Sang A. Cha, Ji Eun Kang, Mohamad Mansour, and Jung Yoon Lee. "Axial Strain of Reinforced Concrete Columns." Advanced Materials Research 163-167 (December 2010): 1858–61. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1858.

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The reinforced concrete members are designed to fail in flexural member to behave ductilely. Also the failure doesn’t impose on columns but beams. But according to the plastic collapse mechanism, the plastic hinge potentially developed at the bottom of the RC column near the base of the structure after flexural yielding. These columns are generally dominated by shear which led to sudden failure in post yielding region because of its relatively short span-to-depth ratio, so special care is needed. The deformability of column with short span-to-depth ratio is small compared with larger span-to-d

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Cheung, P. C., T. Paulay, and R. Park. "Some possible revisions to the seismic provisions of the New Zealand concrete design code for moment resisting frames." Bulletin of the New Zealand Society for Earthquake Engineering 25, no. 1 (1992): 37–43. http://dx.doi.org/10.5459/bnzsee.25.1.37-43.

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Possible revisions to the seismic design provisions of the New Zealand concrete design code NZS 3101: 1982 for ductile reinforced concrete moment resisting frames are discussed. Topics include shear reinforcement for beam-column joint cores, anchorage of longitudinal reinforcement passing through beam-column joint cores, and transverse reinforcement in columns for confinement in potential plastic hinge regions of columns. The recommendations are based on recent experimental and theoretical studies of the simulated seismic response of beam-column joints and columns in ductile reinforced concret

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Sivanantham, Pradeep, Subramanian Senthil Selvan, Satyanarayanan Kachabeswara Srinivasan, Beulah Gnana Ananthi Gurupatham, and Krishanu Roy. "Influence of Infill on Reinforced Concrete Frame Resting on Slopes under Lateral Loading." Buildings 13, no. 2 (2023): 289. http://dx.doi.org/10.3390/buildings13020289.

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When compared to traditional reinforced concrete constructions on level surfaces, buildings situated on hills with slopes require additional consideration, particularly when seismic loading is an important factor. In hilly slopes, the ground-level columns of structures have different heights due to the nature of the slope, which leads to a short column effect. This paper represents an experimental and analytical investigation of the behaviour of reinforced concrete frames and their response in sloped regions of hills, in which global retrofitting techniques were adopted by providing solid infi

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Liu, Xue Feng, Qing Xin Ren, and Lian Guang Jia. "Temperature Field Analysis of Concrete Filled Steel Tube Reinforced Concrete Columns in Fire." Applied Mechanics and Materials 644-650 (September 2014): 5019–22. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.5019.

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In this paper, temperature field analysis of concrete filled steel tube reinforced concrete columns in fire has been carried on. A finite element model for concrete filled steel tube reinforced concrete columns in fire is developed by ABAQUS. The cross-sectional temperature field distribution regularity of concrete filled steel tube reinforced concrete columns in fire has been obtained. Parameter analysis such as fire duration time and steel ratio on the column section temperature field is conducted, and this provide the reference for the further analysis of concrete filled steel tube reinforc

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Liu, Jin Ming. "Construction Technology of Lift Slab with Concrete Filled Steel Tube Columns." Applied Mechanics and Materials 170-173 (May 2012): 3072–76. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.3072.

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Abstract. This paper discusses a lift slab building with concrete filled steel tube columns. Lift slab construction as a methodology has advanced on improvements in traditional lift slab construction technology. When concrete filled steel tube columns are used, the strength of the concrete in the tube is obviously enhanced by the hoop action derived from the steel tube. The section of the concrete filled steel tube column is smaller than the section of the reinforced concrete column, thus realizing cost savings in material and labor. Also, because the steel tube hasn’t been filled with concret

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Dariienko, Viktor, Dmytro Artemenko, Olexandr Lizunkov, and Oleh Plotnikov. "Results of Numerical Modeling the Stress-Strain State of Damaged Reinforced Concrete Columns in the Middle Row of the Industrial Building." Materials Science Forum 968 (August 2019): 342–47. http://dx.doi.org/10.4028/www.scientific.net/msf.968.342.

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The article is devoted to the investigation of the influence of columns’ concrete body destruction size on the bearing capacity of building structures. The joint spatial work of steel strengthening structures with reinforced concrete constructions is investigated. The results of numerical modeling the stress-strain state of damaged reinforced concrete columns in the middle row of the industrial building are presented. The numerical modeling was executed in the system NASTRAN. It was carried out the numerical calculation of reinforced concrete column in the middle row without damages. Then it w

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Zhang, Yun Feng, Shou Kang Liu, and De Wang Zhao. "Experimental Research on the Effects of Pipe Diameter on Axial Compression Properties of GFRP Tubes Reinforced Concrete Column." Applied Mechanics and Materials 204-208 (October 2012): 972–77. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.972.

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Through the axial compression experiment of 9 GFRP tubes reinforced concrete columns, this paper analyzes the failure mode and loading-strain curves under different pipe diameter, and compares bearing capacity between the experimental data with FRP reinforced concrete and the calculated value without GFRP tubes reinforced concrete. he results show that the bearing capacity and ductility of GFRP tubes reinforced concrete column have improved, because of the restriction effect of FRP tubes. The confining ability of FRP tubes on concrete reduced for a certain thickness GFRP tubes constraint concr

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Prasetyo, Totok Andi, and Agus Hadi Santosa W. "BEHAVIOR OF FLAT REINFORCED-CONCRETE COLUMN SIZE (15x30) CM TO AXIAL CYCLIC LOADING : COMPARATION STUDY COLUMN WITH REINFORCEMENT AND STEEL PROFILE." Jurnal Syntax Transformation 4, no. 11 (2023): 1–20. http://dx.doi.org/10.46799/jst.v4i11.849.

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This research discusses the behavior of flat columns with the comparison of reinforced-concrete columns and IWF steel reinforcement. The research object took 4 column samples with a column size of 15x30 cm by comparing the reinforced-concrete column and concrete columns with IWF steel reinforcement. This study conducted comparisons with experimental tests, column capacity theory calculations, and calculations with the ANSYS19.2 program. The purpose of this study was to obtain the maximum axial load result, shorten the column, the relationship between stress and strain of the column, failure pa

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Souza, Régis Marciano de, Ricardo Rodrigues Magalhães, and Ednilton Tavares de Andrade. "COMPARATIVE STUDY OF NON-LINEAR SIMULATIONS OF A REINFORCED CONCRETE SLENDER COLUMN USING FINITE ELEMENT METHOD AND P-DELTA." Theoretical and Applied Engineering 3, no. 1 (2019): 1–11. http://dx.doi.org/10.31422/taae.v3i1.7.

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This paper analyzes the non-linear geometric behavior of reinforced concrete slender columns. This approach is due to the fact that there is a tendency to reinforced concrete slender constructions, which may have significant second order effects. This research aimed at comparing different formulations for the analysis of non-linear behavior of reinforced concrete slender columns by comparing results from simulated problem (slender column with ten load scenarios) between the Finite Element Method (FEM) and the Iterative Process P-DELTA(P-Δ). Numeric results revealed that the Iterative Process P

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Kim, Tae-Hoon, Young-Jin Kim, Hyeong-Taek Kang, and Hyun Mock Shin. "Performance assessment of reinforced concrete bridge columns using a damage index." Canadian Journal of Civil Engineering 34, no. 7 (2007): 843–55. http://dx.doi.org/10.1139/l07-003.

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A procedure is presented for assessment of the performance of reinforced concrete bridge columns. Fourteen circular reinforced concrete bridge columns were tested under a constant axial load and a cyclically reversed horizontal load. A computer program, named RCAHEST (reinforced concrete analysis in higher evaluation system technology), was used to analyze these reinforced concrete structures. A damage index based on the predicted hysteretic behavior of a reinforced concrete bridge column was used. Damage indices aim to provide a means of quantifying numerically the performance level of reinfo

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Anand, Praveen, and Ajay Kumar Sinha. "Effect of Reinforced Concrete Jacketing on Axial Load Capacity of Reinforced Concrete Column." Civil Engineering Journal 6, no. 7 (2020): 1266–72. http://dx.doi.org/10.28991/cej-2020-03091546.

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Whenever a member of a structure becomes structurally deficient, it becomes vulnerable to the existing load and for the additional loads that it may be subjected to in the coming future. Since columns are the most important structural element, the structural retrofit of columns, relative to other structural elements is of prime importance. This study intends to investigate the performance and behaviour of an RC column jacketed with Reinforced Concrete columns under axial loads. The objective of this paper is to find out the efficiency of RC jacket in enhancing the strength of an existing RC co

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Yuan, Jian, Xin Zhao, Lianmin Tian, Zhaolong Hou, Yunfeng Pan, and Jun He. "Experimental Study on Axial Compression Behavior of Molybdenum Tailings Concrete Column Confined by GFRP." Buildings 14, no. 12 (2024): 3779. http://dx.doi.org/10.3390/buildings14123779.

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To promote the application of molybdenum tailings as the fine aggregate in concrete in construction engineering and verify the feasibility of fiber-reinforced polymer (FRP) material for strengthening molybdenum tailings concrete columns, this study takes a short circular molybdenum tailings concrete column reinforced by glass FRP (GFRP) as the research object. The influences of the molybdenum tailings content (0%, 25%, 50%, 75%, and 100%), the concrete grade (C30, C40, and C50), and the layer number (0, 1, and 2) of the GFRP sheet on the axial compressive capacity of the molybdenum tailings co

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Li, Qiang, Zhong Gou Chen, and Dan Wu. "Temporal and Spatial Evolution of Acoustic Emission in the Damage Process of Reinforced Concrete Column." Applied Mechanics and Materials 638-640 (September 2014): 275–78. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.275.

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To study the whole process of fracture and damage of reinforced concrete column, temporal and spatial evolution of acoustic emission in the damage process of reinforced concrete column were tested. The results show that AE events of corroded column were much more during the whole loading process than that of the none-corroded one due to reinforcement corrosion. At the same loading speed, the corroded column was failed earlier than the none-corroded one. AE can obtain the internal temporal and spatial evolution damage parameters of the reinforced concrete members before the macro crack visible.

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Xu, Ying, Chengyin Liu, Lei Chai, Miaomiao Lu, and Congcong Luo. "Failure mechanism of fiber-reinforced polymer-confined concrete column with initial defects." Journal of Composite Materials 52, no. 21 (2018): 2887–97. http://dx.doi.org/10.1177/0021998318758882.

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The effect of initial defect size on the mechanical behavior and failure mode of carbon fiber-reinforced polymer- confined concrete column was investigated through theoretical analysis, finite element software simulation and experiment validation. Qualitative theoretical analysis was firstly explored to study the effect of initial defect size on the mechanical behavior of confined concrete column from macro to micro perspective. Numerical simulations and experimental investigation were then carried out and compared to investigate the mechanical behavior of carbon fiber-reinforced polymer-confi

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Elaldi, Faruk, Batuhan Ciloglu, and Yasin Yanikkaya. "A Comparison on Column Reinforcement with Conventional Concrete and Carbon Fiber / Epoxy Exposed to Compression Loading." Solid State Phenomena 305 (June 2020): 85–90. http://dx.doi.org/10.4028/www.scientific.net/ssp.305.85.

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There are lots of concrete columns and beams around in our living cities. Those items are mostly open to aggressively environmental conditions. Mostly, they are deteriorated by sand wind, humidity and other external applications. After a while these beam and columns need to be repaired. Within the scope of this study, for reinforcement of concrete columns, samples were designed and fabricated to be strengthened with carbon fiber reinforced composite materials and conventional concrete encapsulation and followed by, they were put into the axial compression test to determine load carrying perfor

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Xue, Jian Yang, Jian Peng Lin, and Hui Ma. "Experimental Study on Seismic Performance of Steel Reinforced Recycled Concrete Column." Applied Mechanics and Materials 501-504 (January 2014): 1580–86. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1580.

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The pseudo-static tests were carried out on seven steel reinforced recycled concrete columns. The main parameters of specimens were recycled aggregate replacement ratio, axial compression ratio and volumetric stirrup ratio. The results indicate that the incorporation of recycled aggregate doesnt reduce the horizontal bearing capacity, ductility and the energy dissipation capacity of specimens and has little effect on seismic performance. The seismic performance of steel reinforced recycled concrete column decreases significantly in the high axial compression ratio. The ductility, horizontal be

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42

Kim, Heung Youl, Hyung Jun Kim, Kyung Hoon Park, Bum Youn Cho, and Jae Sung Lee. "Fire Resistance Performance of High-Strength Concrete Columns Reinforced with Pre-Stressed Wire Ropes." Applied Mechanics and Materials 470 (December 2013): 880–83. http://dx.doi.org/10.4028/www.scientific.net/amm.470.880.

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In this study, the fire resistance performance of high-strength concrete columns was evaluated to see the influence of lateral confinement reinforcement with wire ropes for improving ductility, fire resistance reinforcement with fiber cocktail and load ratio. For this, loaded fire test was conducted under ISO834 standard fire condition. The axial ductility of the 60MPa high-strength concrete column reinforced with pre-stressed wire ropes was improved and its fire resistance performance was also improved by 23% compared with its counterpart without wire ropes. The appropriate load for the 60MPa

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Kittipoom, Rodsin, Sappakittipakorn Manote, and Sukontasukkul Piti. "Seismic Performance Enhancement of Non-Ductile RC Columns Using Steel Fiber Reinforced Concrete (SFRC)." Advanced Materials Research 747 (August 2013): 773–76. http://dx.doi.org/10.4028/www.scientific.net/amr.747.773.

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The principal aim of this research is to improve the seismic performance of non-ductile reinforced columns using fiber reinforced concrete (FRC) by mixing steel fiber into the concrete. Two reinforced concrete columns 200mm x 300mm in cross-section with a height of 1250 mm were tested under cyclic lateral loading. The first specimen was casted using normal strength concrete of 24 MPa and the second specimens were also casted using similar concrete with similar strength but the steel fiber of 1% was added to the concrete in the plastic hinge region. The axial load for all specimens was 300 kN a

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Urban, Tadeusz, Michał Gołdyn, and Łukasz Krawczyk. "Experimental investigations of reinforced concrete columns in the edge connection zone with a reinforced concrete slab." Budownictwo i Architektura 13, no. 3 (2014): 175–82. http://dx.doi.org/10.35784/bud-arch.1814.

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In this paper the results of the experimental investigations of edge column – slab connections are presented and commented on. The load transmission mechanism between high strength concrete columns and slab made of normal, five times lower strength concrete was considered. The variable parameter of presented study was the overhang of slab cantilever. The performed study showed important effect of slab cantilever on effective concrete strength of column in the connection zone.

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Park, Robert. "Ductile Design Approach for Reinforced Concrete Frames." Earthquake Spectra 2, no. 3 (1986): 565–619. http://dx.doi.org/10.1193/1.1585398.

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In the design of multistorey moment-resisting reinforced concrete frames to resist severe earthquakes the emphasis should be on good structural concepts and detailing of reinforcement. Poor structural concepts can lead to major damage or collapse due to column sidesway mechanisms or excessive twisting as a result of soft storeys or lack of structural symmetry or uniformity. Poor detailing of reinforcement can lead to brittle connections, inadequate anchorage of reinforcement, or insufficient transverse reinforcement to prevent shear failure, premature buckling of compressed bars or crushing of

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Zhang, Guo Xue, Chang Wei Wang, and Zhi Hao Zhang. "Strength Degradation and Energy Dissipation of Stainless Steel Reinforced Concrete Columns." Applied Mechanics and Materials 90-93 (September 2011): 1614–17. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.1614.

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Three specimens with ribbed stainless steel rebar and one specimen with ribbed ordinary steel rebar are tested concerning the strength degradation and energy dissipation of stainless steel reinforced concrete columns. The tests results indicate that the damage of the specimens exhibit ductile failure characteristics, and the reinforced concrete columns with stainless steel rebar damage to a lesser extent, appear good ductility and energy dissipation. The strength degradation of stainless steel reinforced column with high axial compression ratio is quite obvious, and with the increasing of the

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Liu, Xiaoxian, Jianzhong Li, Hing-Ho Tsang, and John Wilson. "Enhancing seismic performance of unbonded prestressed concrete bridge column using superelastic shape memory alloy." Journal of Intelligent Material Systems and Structures 29, no. 15 (2018): 3082–96. http://dx.doi.org/10.1177/1045389x18783074.

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In this article, an application of superelastic shape memory alloy strands for improving the seismic performance of unbonded prestressed reinforced concrete bridge column is proposed. In the reinforced concrete column with unbonded prestressing steel-shape memory alloy strands, superelastic shape memory alloy strands are put in series with unbonded steel strands, and the loading plateau of shape memory alloy is exploited to limit the increase in the axial load of column under an earthquake. Quasi-static analysis and seismic analysis were conducted to compare the seismic performance of conventi

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Guan, Jun Feng, and Juan Wang. "Calculation of Shear Capacity of Continuous Compound Spiral Hoop Reinforced Concrete Column." Applied Mechanics and Materials 238 (November 2012): 240–43. http://dx.doi.org/10.4028/www.scientific.net/amm.238.240.

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High-ductility stirrups, which yield strength standard value is great than 1100MPa, are usually employed as a horizontal reinforcing steel bar of continuous compound spiral hoop reinforced concrete column to improve the anti-seismic performance of the short column. In this paper, a method is proposed to calculate the shear capacity of the continuous compound spiral hoop reinforced concrete column by regression analysis on the existing test data. Furthermore, the engineering application of the proposed method was illustrated in a specific case. This study provides supports for engineering proje

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Gramblička, Štefan, and Peter Veróny. "Transverse Reinforcement in Reinforced Concrete Columns." Selected Scientific Papers - Journal of Civil Engineering 8, no. 2 (2013): 41–50. http://dx.doi.org/10.2478/sspjce-2013-0017.

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Abstract In the article we are dealing with the influence of transverse reinforcement to the resistance of a cross-section of the reinforced concrete columns and also with the effective detailing of the column reinforcement. We are verifying the correctness of design guides for detailing of transverse reinforcement. We are also taking into account the diameter of stirrups and its influence over transverse deformation of column.

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Ali, A., Z. Soomro, S. Iqbal, N. Bhatti, and A. F. Abro. "Prediction of Corner Columns’ Load Capacity Using Composite Material Analogy." Engineering, Technology & Applied Science Research 8, no. 2 (2018): 2745–49. http://dx.doi.org/10.48084/etasr.1879.

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There are numerous reasons for which concrete has become the most widely used construction material in buildings, one of them being its availability in different types, such as fiber-reinforced, lightweight, high strength, conventional and self-compacting concrete. This advantage is specially realized in high-rise building construction, where common construction practice is to use concretes of different types or strength classes in slabs and columns. Columns in such structures are generally made from concrete which is higher in compressive strength than the one used in floors or slabs. This ra

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