Experimental behavior of circular concrete-filled steel tube

Feb 01, 2007 · This paper presented an experimental study on the behavior of circular, concrete-filled, steel tube (CFT) stub columns with self-compacting concrete (SCC) and normal concrete (NC) concentrically loaded in compression to failure. Four measurement methods on the axial deformation of specimens were compared.

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Behavior of concrete columns reinforced with high-strength

In this study, high-strength steel (HSS) reinforcement with a yield stress of about 600 MPa was used in reinforced concrete columns to reduce both the reinforcing bar congestion and the construction costs. For this purpose, 16 square concrete columns reinforced with either the conventional normal-strength steel (NSS) or HSS rebars were subjected to axial and eccentric compression loads.

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Behavior of corroded circular RC columns strengthened by C

This study presents an experimental investigation on the seismic behavior of corroded reinforced concrete (RC) columns strengthened by carbon-fabric reinforced cementitious matrix (C-FRCM). To this end, cyclic loading tests were conducted on seven circular RC columns, six of which were suffered from corrosion with duration of 360 days.

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behavior, strength and flexural stiffness of circular concrete columns

steel counterparts, and achieved almost the same nominal axial forces. Specimens with GFRP ... Hadhood, A. “Behavior of circular concrete columns reinforced with FRP bars under eccentric ... While repair is not always an option, some cases.

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Nonlinear Finite-Element Analysis for Hysteretic Behavior of

Nonlinear Finite-Element Analysis for Hysteretic Behavior of Thin-Walled Circular Steel Columns with In-Filled Concrete. The strength and ductility of thin-walled steel columns under cyclic loads are considerably upgraded by filling concrete into hollow spaces surrounded by steel tube and diaphragms.

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Simplified damage models for circular section reinforced

2020年5月27日 — Seismic behavior of circular fly ash concrete columns reinforced with low-bond high-strength steel rebar ... Behavior of heat damaged circular reinforced concrete columns repaired using Carbon Fiber Reinforced Polymer rope.

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Experimental Behavior of Concrete-Filled Steel Tube

Sep 09, 2016 · Concrete-filled steel tube (CFT) columns offer significant advantages over columns made of either steel or concrete alone, such as large energy dissipation and increased strength and stiffness. To further improve the seismic performance of these columns, an experimental investigation was conducted into CFT columns using ultrahigh-strength steel.

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Behavior of steel-concrete jacketed corrosion-damaged RC columns

Behavior of steel-concrete jacketed corrosion-damaged RC columns subjected ... A. (2002), "Behavior and strength of circular concrete-filled tube columns", J. Constr. ... "Cyclic performance of repaired concrete-filled steel tubular columns after ...

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Sustainable FRP–recycled aggregate concrete–steel composite

Nov 01, 2017 · T. Ozbakkaloglu, B.A. Louk Fanggi, J. ZhengConfinement model for concrete in circular and square FRP–concrete–steel double-skin composite columns Mater. Des., 96 (2016), pp. 458-469

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Structural behavior of beam-to-column connections of circular

Jun 30, 2015 · Concrete Filled Steel Tube (CFST) is a structure made of a steel tube filled with concrete, in which the rigidity of the member can be increased as the ste The object of this study is a mixed diaphragm which uses a penetrated diaphragm and an exterior diaphragm in combination at beam-tocolumn connections of circular CFST columns to improve the ...

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Investigation of the behavior of circular concrete columns

reinforced polymer jackets can be used to reinforce circular concrete columns. ... steel reinforced concrete columns strengthened with FRP ... Repair of earth-.

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Behavior of heat damaged circular reinforced concrete columns

Sep 01, 2020 · This study aims to investigate the behavior of repaired circular reinforced concrete (RC) columns exposed to temperature considering the effect of spacing between CFRP ropes, area of CFRP ropes and degree of temperature. Nine circular column specimens with diameter of 185 mm and length of 800 mm were constructed and tested.

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Behavior of large-scale connections between circular

Three large-scale connections between circular concrete-filled steel tubular columns and H-section steel beams were tested. The specimens include one connection with T-shaped stiffeners under static load and two connections, respectively, with T-shaped stiffeners and diaphragms (including interior and exterior diaphragms) under cyclic loads.

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Behavior of Circular Reinforced Concrete Columns Confined with

Strengthening, repairing and seismic retrofitting of concrete structures with ... concrete, steel plates, discrete reinforcing steel bars, and CFRP sheets, respectively. ... studied the behavior of square concrete columns confined with FRP sheets ...

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Wan-Yang Gao‬ - ‪Google 學術搜尋‬ - Google Scholar

Effect of temperature variation on the full-range behavior of FRP-to-concrete bonded ... Stress-Strain Behavior of Circular Concrete Columns Partially Wrapped with ... and Debonding Failures of Full-Scale CFRP-Strengthened H-Section Steel Beams ... Repair of fire-damaged RC slabs with basalt fabric-reinforced shotcrete.

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slender reinforced concrete columns strengthened ... - Sciendo

Research field: Reliability, Diagnosis and Repair of. Concrete Structures ... effect on axially loaded short squared and circular concrete columns has been ... the behaviour of slender concrete columns and allow for the achievement of higher ... From a comparison of the steel reinforcement and CFRP laminate strips and the ...

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Manual for Design and Detailing of Reinforced Concrete to the Code

3 Sep 2013 ... (iii) The high yield bar (which is termed “ribbed steel reinforcing bar” in the Code as in ... repair or escape before failure. Figure 2.4 ... support is rectangular and 0.2Ø if the column support is circular with diameter Ø. But ... on both sides which is the normal behaviour of a column beam joint under dominant ...

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Analytical Behavior of Rubber Concrete-Filled Steel

Keywords: concrete-filled steel tube; rubber concrete; analytical behavior; rubber replacing ratio; hysteretic behavior. Abstract: This paper presents a finite element analysis (FEA) model for the rubber concrete-filled steel tubular columns under cyclically increasing horizontal displacement loading. The cyclic load versus lateral displacement hysteresis curves was calculated by using FEA ...

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100+ documents about Circular Concrete Columns - 1Library

An Experimental Investigation on the Behavior of Circular Concrete Columns ... The third group columns were made of RC incorporated with steel fibres with no ... of ferrocement confinement for repairing both circular and square R.C. columns ...

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Strengthening and Repair of Reinforced Concrete Columns by

Thus, circular or elliptical FRP jackets were assumed to be more effective. While investigating the behavior of columns with lap splices, Harries et al. [30] found that ...

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PDF) Design of Round Reinforced-Concrete Columns

A closed-form solution for the design and analysis of short circular reinforced columns is presented. The technique is based on transforming the components of the cross section, concrete, and ...

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Behavior of Concrete Filled Steel Tube Column

1. Dennis Lam, EhabEllobod and Ben Young [2005]: The behavior and design of axially loaded concrete-filled steel tube circular stub columns were presented. The study was carried over a wide range of concrete cube strengths ranging from 30 to 110 MPa. The external diameter of the steel tube-to-thickness (D/t) ratio ranged from 15 to 80.

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Circular and Square Concrete Columns Externally Confined by

The confining action of the FRP composite for circular concrete columns is ... Different behaviour between steel and FRP composite was observed due to the ... for Concrete Repair, Martin Alberto Masuelli, IntechOpen, DOI: 10.5772/51589.

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Behavior of Circular Fiber-Reinforced Polymer–Steel-Confined

Sep 09, 2019 · Abstract. This paper studied experimentally the behavior of circular fiber-reinforced polymer (FRP)–steel-confined concrete columns subjected to reversed cyclic loads. The influence of main structural factors on the cyclic behavior of the columns is discussed. Test results showed the outstanding seismic performance of FRP–steel-confined RC and steel-reinforced concrete (SRC) columns.

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Wan-Yang Gao‬ - ‪Google Scholar

Effect of temperature variation on the full-range behavior of FRP-to-concrete bonded ... Stress-Strain Behavior of Circular Concrete Columns Partially Wrapped with ... and Debonding Failures of Full-Scale CFRP-Strengthened H-Section Steel Beams ... Repair of fire-damaged RC slabs with basalt fabric-reinforced shotcrete.

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