Results 11 to 20 of about 435,551 (310)

A Study on Self-Consolidate Concrete in Experimental Reinforced-Concrete Beam Column Structures with Alccofine and Steel Fiber

open access: yesAdvances in Civil Engineering, 2022
This paper discusses the concept of self-consolidating concrete mix with Alccofine-1203, superplasticizer, viscosity modification agent, crimped steel fiber on the RC beam column joint. Totally, eight reinforced-concrete (RC) column joints with M25 grade
G. Vimal Arokiaraj, G. Elangovan
doaj   +1 more source

Experimental Evaluation of Shape Memory Alloy Retrofitting Effect for Circular Concrete Column Using Ultrasonic Pulse Velocity

open access: yesInternational Journal of Concrete Structures and Materials, 2023
The seismic performance of a concrete column retrofitted with an iron-based shape memory alloy (Fe-SMA) was evaluated under cyclic loading. In addition to structural behavior, internal damage was monitored using an ultrasonic pulse velocity test.
Taemin Lee   +4 more
doaj   +1 more source

Development of Crack Width Prediction Models for RC Beam-Column Joint Subjected to Lateral Cyclic Loading Using Machine Learning

open access: yesApplied Sciences, 2021
In recent years, researchers have investigated the development of artificial neural networks (ANN) and finite element models (FEM) for predicting crack propagation in reinforced concrete (RC) members. However, most of the developed prediction models have
Reventheran Ganasan   +5 more
doaj   +1 more source

Experimental and Numerical Investigation on Progressive Collapse Resistance of Post-tensioned Precast Concrete Beam-Column Sub-assemblages [PDF]

open access: yes, 2020
In this paper, four 1/2 scaled precast concrete (PC) beam-column sub-assemblages with high performance connection were tested under push-down loading procedure to study the load resisting mechanism of PC frames subjected to different column removal ...
Feng, D-C.   +4 more
core   +1 more source

Experimental and numerical study of strengthening and repairing heat-damaged RC circular column using hybrid system of CFRP

open access: yesCase Studies in Construction Materials, 2021
This study aims to investigate the behavior of heat damaged reinforced concrete RC circular column considering effect of heat and repair technique. Six RC circular column with diameter of 185 mm and 800 mm in height were cast, heated at 400°C and 600°C ...
Ala’ Taleb Obaidat   +4 more
doaj   +1 more source

Parametric studies on the ductility of axial loaded square reinforced concrete column made of normal-strength concrete (NSC) and high-strength steel confining rebar (HSSCR) with various ties configuration [PDF]

open access: yesE3S Web of Conferences, 2020
During an earthquake, Reinforced Concrete (RC) building structures should behave in a ductile manner to prevent the structures from collapse. Therefore, the column element should have sufficient ductility to sustain an axial load at the post-peak region.
Aulia Ulfa Anis   +4 more
doaj   +1 more source

Application of Post-Embedded Piezoceramic Sensors for Force Detection on RC Columns under Seismic Loading

open access: yesApplied Sciences, 2020
To quantify damage to reinforced concrete (RC) column members after an earthquake, an engineer needs to know the maximum applied force that was generated by the earthquake. Therefore, in this work, piezoceramic transducers were used to detect the applied
Chien-Kuo Chiu   +4 more
doaj   +1 more source

Capacity Assessment of Existing RC Columns

open access: yesBuildings, 2021
Existing reinforced concrete (RC) members, designed in accordance with obsolete codes, are often characterized by high stirrup spacing. The collapse mechanisms generated by high stirrup spacing are typically related to the buckling of longitudinal reinforcement and can be accentuated when corrosion takes place.
Vecchi F., Belletti B
openaire   +3 more sources

Acoustic Emission Study on the Damage Evolution of a Corroded Reinforced Concrete Column under Axial Loads

open access: yesCrystals, 2021
In this paper, the damage of a reinforced concrete (RC) column with various levels of reinforcement corrosion under axial loads is characterized using the acoustic emission (AE) technique.
Ye Chen   +8 more
doaj   +1 more source

Optimal Design of Seismic Resistant RC Columns [PDF]

open access: yesMaterials, 2020
Although the author is well aware that it is nothing special, presented here is the method that he uses to design the columns of a seismic resistant reinforced concrete structure, in hopes that this could be of use to someone. The method, which is directed at satisfying the capacity design requirements without excessively large sections, consists of ...
openaire   +2 more sources

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